Split cached translation fragments

Co-authored-by: Philip Allgaier <mail@spacegaier.de>

.devcontainer/devcontainer.json

@@ -4,7 +4,7 @@
     "dockerfile": "Dockerfile",
     "context": ".."
   },
-  "appPort": 8123,
+  "appPort": "8124:8123",
   "context": "..",
   "postCreateCommand": "script/bootstrap",
   "extensions": [
@@ -26,6 +26,9 @@
     "[typescript]": {
       "editor.defaultFormatter": "esbenp.prettier-vscode"
     },
+    "[javascript]": {
+      "editor.defaultFormatter": "esbenp.prettier-vscode"
+    },
     "files.trimTrailingWhitespace": true
   }
 }

.eslintrc.json

@@ -1,11 +1,11 @@
 {
   "extends": [
+    "airbnb-base",
     "airbnb-typescript/base",
     "plugin:@typescript-eslint/recommended",
     "plugin:wc/recommended",
-    "plugin:lit/recommended",
-    "prettier",
-    "prettier/@typescript-eslint"
+    "plugin:lit/all",
+    "prettier"
   ],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
@@ -29,63 +29,90 @@
     "__BUILD__": false,
     "__VERSION__": false,
     "__STATIC_PATH__": false,
-    "Polymer": true,
-    "webkitSpeechRecognition": false,
-    "ResizeObserver": false
+    "Polymer": true
   },
   "env": {
     "browser": true,
     "es6": true
   },
   "rules": {
-    "class-methods-use-this": 0,
-    "new-cap": 0,
-    "prefer-template": 0,
-    "object-shorthand": 0,
-    "func-names": 0,
-    "prefer-arrow-callback": 0,
-    "no-underscore-dangle": 0,
-    "strict": 0,
-    "prefer-spread": 0,
-    "no-plusplus": 0,
-    "no-bitwise": 2,
-    "comma-dangle": 0,
-    "vars-on-top": 0,
-    "no-continue": 0,
-    "no-param-reassign": 0,
-    "no-multi-assign": 0,
-    "no-console": 2,
-    "radix": 0,
-    "no-alert": 0,
-    "no-return-await": 0,
-    "no-nested-ternary": 0,
-    "prefer-destructuring": 0,
+    "class-methods-use-this": "off",
+    "new-cap": "off",
+    "prefer-template": "off",
+    "object-shorthand": "off",
+    "func-names": "off",
+    "no-underscore-dangle": "off",
+    "strict": "off",
+    "no-plusplus": "off",
+    "no-bitwise": "error",
+    "comma-dangle": "off",
+    "vars-on-top": "off",
+    "no-continue": "off",
+    "no-param-reassign": "off",
+    "no-multi-assign": "off",
+    "no-console": "error",
+    "radix": "off",
+    "no-alert": "off",
+    "no-nested-ternary": "off",
+    "prefer-destructuring": "off",
     "no-restricted-globals": [2, "event"],
-    "prefer-promise-reject-errors": 0,
-    "import/order": 0,
-    "import/prefer-default-export": 0,
-    "import/no-unresolved": 0,
-    "import/no-cycle": 0,
+    "prefer-promise-reject-errors": "off",
+    "import/prefer-default-export": "off",
+    "import/no-default-export": "off",
+    "import/no-unresolved": "off",
+    "import/no-cycle": "off",
     "import/extensions": [
-      2,
+      "error",
       "ignorePackages",
       { "ts": "never", "js": "never" }
     ],
     "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
-    "object-curly-newline": 0,
-    "default-case": 0,
-    "wc/no-self-class": 0,
-    "no-shadow": 0,
-    "@typescript-eslint/camelcase": 0,
-    "@typescript-eslint/ban-ts-comment": 0,
-    "@typescript-eslint/no-use-before-define": 0,
-    "@typescript-eslint/no-non-null-assertion": 0,
-    "@typescript-eslint/no-explicit-any": 0,
-    "@typescript-eslint/no-unused-vars": 0,
-    "@typescript-eslint/explicit-function-return-type": 0,
-    "@typescript-eslint/explicit-module-boundary-types": 0,
-    "@typescript-eslint/no-shadow": ["error"]
+    "object-curly-newline": "off",
+    "default-case": "off",
+    "wc/no-self-class": "off",
+    "no-shadow": "off",
+    "@typescript-eslint/camelcase": "off",
+    "@typescript-eslint/ban-ts-comment": "off",
+    "@typescript-eslint/no-use-before-define": "off",
+    "@typescript-eslint/no-non-null-assertion": "off",
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "@typescript-eslint/no-shadow": ["error"],
+    "@typescript-eslint/naming-convention": [
+      "off",
+      {
+        "selector": "default",
+        "format": ["camelCase", "snake_case"],
+        "leadingUnderscore": "allow",
+        "trailingUnderscore": "allow"
+      },
+      {
+        "selector": ["variable"],
+        "format": ["camelCase", "snake_case", "UPPER_CASE"],
+        "leadingUnderscore": "allow",
+        "trailingUnderscore": "allow"
+      },
+      {
+        "selector": "typeLike",
+        "format": ["PascalCase"]
+      }
+    ],
+    "@typescript-eslint/no-unused-vars": "off",
+    "unused-imports/no-unused-vars": [
+      "error",
+      {
+        "vars": "all",
+        "varsIgnorePattern": "^_",
+        "args": "after-used",
+        "argsIgnorePattern": "^_",
+        "ignoreRestSiblings": true
+      }
+    ],
+    "unused-imports/no-unused-imports": "error",
+    "lit/attribute-value-entities": "off",
+    "lit/no-template-map": "off"
   },
-  "plugins": ["disable", "import", "lit", "prettier", "@typescript-eslint"],
+  "plugins": ["disable", "unused-imports"],
   "processor": "disable/disable"
 }

.github/ISSUE_TEMPLATE.md

@@ -74,12 +74,12 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 
 ```
 
-## Problem-relevant configuration
+## Problem-relevant frontend configuration
 
 <!--
-  An example configuration that caused the problem for you. Fill this out even
-  if it seems unimportant to you. Please be sure to remove personal information
-  like passwords, private URLs and other credentials.
+  An example configuration that caused the problem for you, e.g. the YAML configuration
+  of the used cards. Fill this out even if it seems unimportant to you. Please be sure
+  to remove personal information like passwords, private URLs and other credentials.
 -->
 
 ```yaml
@@ -89,7 +89,7 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 ## Javascript errors shown in your browser console/inspector
 
 <!--
-  If you come across any javascript or other error logs, e.g., in your browser
+  If you come across any Javascript or other error logs, e.g. in your browser
   console/inspector please provide them.
 -->
 

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,121 @@
+name: Report a bug with the UI, Frontend or Lovelace
+description: Report an issue related to the Home Assistant frontend.
+labels: bug
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Make sure you are running the [latest version of Home Assistant][releases] before reporting an issue.
+
+        If you have a feature or enhancement request for the frontend, please [start an discussion][fr] instead of creating an issue.
+
+        **Please not not report issues for custom Lovelace cards.**
+
+        [fr]: https://github.com/home-assistant/frontend/discussions
+        [releases]: https://github.com/home-assistant/home-assistant/releases
+  - type: checkboxes
+    attributes:
+      label: Checklist
+      description: Please verify that you've followed these steps
+      options:
+        - label: I have updated to the latest available Home Assistant version.
+          required: true
+        - label: I have cleared the cache of my browser.
+          required: true
+        - label: I have tried a different browser to see if it is related to my browser.
+          required: true
+  - type: markdown
+    attributes:
+      value: |
+        ## The problem
+  - type: textarea
+    validations:
+      required: true
+    attributes:
+      label: Describe the issue you are experiencing
+      description: Provide a clear and concise description of what the bug is.
+  - type: textarea
+    validations:
+      required: true
+    attributes:
+      label: Describe the behavior you expected
+      description: Describe what you expected to happen or it should look/behave.
+  - type: textarea
+    validations:
+      required: true
+    attributes:
+      label: Steps to reproduce the issue
+      description: |
+        Please tell us exactly how to reproduce your issue.
+        Provide clear and concise step by step instructions and add code snippets if needed.
+      value: |
+        1.
+        2.
+        3.
+        ...
+  - type: markdown
+    attributes:
+      value: |
+        ## Environment
+  - type: input
+    validations:
+      required: true
+    attributes:
+      label: What version of Home Assistant Core has the issue?
+      placeholder: core-
+      description: >
+        Can be found in the Configuration panel -> Info.
+  - type: input
+    attributes:
+      label: What was the last working version of Home Assistant Core?
+      placeholder: core-
+      description: >
+        If known, otherwise leave blank.
+  - type: input
+    attributes:
+      label: In which browser are you experiencing the issue with?
+      placeholder: Google Chrome 88.0.4324.150
+      description: >
+        Provide the full name and don't forget to add the version!
+  - type: input
+    attributes:
+      label: Which operating system are you using to run this browser?
+      placeholder: macOS Big Sur (1.11)
+      description: >
+        Don't forget to add the version!
+  - type: markdown
+    attributes:
+      value: |
+        # Details
+
+  - type: textarea
+    attributes:
+      label: State of relevant entities
+      description: >
+        If your issue is about how an entity is shown in the UI, please add the
+        state and attributes for all situations. You can find this information
+        at Developer Tools -> States.
+      render: txt
+  - type: textarea
+    attributes:
+      label: Problem-relevant frontend configuration
+      description: >
+        An example configuration that caused the problem for you, e.g., the YAML
+        configuration of the used cards. Fill this out even if it seems
+        unimportant to you. Please be sure to remove personal information like
+        passwords, private URLs and other credentials.
+      render: yaml
+  - type: textarea
+    attributes:
+      label: Javascript errors shown in your browser console/inspector
+      description: >
+        If you come across any Javascript or other error logs, e.g., in your
+        browser console/inspector please provide them.
+      render: txt
+  - type: textarea
+    attributes:
+      label: Additional information
+      description: >
+        If you have any additional information for us, use the field below.
+        Please note, you can attach screenshots or screen recordings here, by
+        dragging and dropping files in the field below.

.github/workflows/ci.yaml

@@ -10,81 +10,64 @@ on:
       - dev
       - master
 
+env:
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
+
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
           CI: true
       - name: Build resources
-        run: ./node_modules/.bin/gulp gen-icons-json build-translations gather-gallery-demos
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-demos
       - name: Run eslint
-        run: ./node_modules/.bin/eslint '{**/src,src}/**/*.{js,ts,html}' --ignore-path .gitignore
+        run: yarn run lint:eslint
       - name: Run tsc
-        run: ./node_modules/.bin/tsc
+        run: yarn run lint:types
+      - name: Run prettier
+        run: yarn run lint:prettier
+      - name: Check for duplicate dependencies
+        run: yarn dedupe --check
   test:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
           CI: true
-      - name: Run Mocha
-        run: npm run mocha
+      - name: Build resources
+        run: ./node_modules/.bin/gulp build-translations build-locale-data
+      - name: Run Tests
+        run: yarn run test
   build:
     runs-on: ubuntu-latest
     needs: [lint, test]
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
@@ -99,20 +82,11 @@ jobs:
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/demo.yaml

@@ -4,26 +4,22 @@ on:
   push:
     branches:
       - dev
+
+env:
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
+
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/netflify.yml

@@ -0,0 +1,19 @@
+name: Netlify
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  trigger_builds:
+    name: Trigger netlify build preview
+    runs-on: "ubuntu-latest"
+    steps:
+      - name: Trigger Cast build
+        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_CAST_DEV_BUILD_HOOK }}
+
+      - name: Trigger Demo build
+        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_DEMO_DEV_BUILD_HOOK }}
+
+      - name: Trigger Gallery build
+        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_GALLERY_DEV_BUILD_HOOK }}

.github/workflows/release.yaml

@@ -0,0 +1,91 @@
+name: Release
+
+on:
+  release:
+    types:
+      - published
+
+env:
+  PYTHON_VERSION: 3.8
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2
+
+      - name: Verify version
+        uses: home-assistant/actions/helpers/verify-version@master
+
+      - name: Set up Python ${{ env.PYTHON_VERSION }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Download Translations
+        run: ./script/translations_download
+        env:
+          LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
+      - name: Build and release package
+        run: |
+          python3 -m pip install twine
+          export TWINE_USERNAME="__token__"
+          export TWINE_PASSWORD="${{ secrets.TWINE_TOKEN }}"
+
+          script/release
+
+  wheels-init:
+    name: Init wheels build
+    needs: release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Generate requirements.txt
+        run: |
+          # Sleep to give pypi time to populate the new version across mirrors
+          sleep 240
+          version=$(echo "${{ github.ref }}" | awk -F"/" '{print $NF}' )
+          echo "home-assistant-frontend==$version" > ./requirements.txt
+
+      - name: Upload requirements.txt
+        uses: actions/upload-artifact@v2
+        with:
+          name: requirements
+          path: ./requirements.txt
+
+  build-wheels:
+    name: Build wheels for ${{ matrix.arch }}
+    needs: wheels-init
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        arch: ["aarch64", "armhf", "armv7", "amd64", "i386"]
+        tag:
+          - "3.9-alpine3.14"
+    steps:
+      - name: Download requirements.txt
+        uses: actions/download-artifact@v2
+        with:
+          name: requirements
+
+      - name: Build wheels
+        uses: home-assistant/wheels@master
+        with:
+          tag: ${{ matrix.tag }}
+          arch: ${{ matrix.arch }}
+          wheels-host: ${{ secrets.WHEELS_HOST }}
+          wheels-key: ${{ secrets.WHEELS_KEY }}
+          wheels-user: wheels
+          requirements: "requirements.txt"

.github/workflows/translations.yaml

@@ -0,0 +1,25 @@
+name: Translations
+
+on:
+  push:
+    branches:
+      - dev
+    paths:
+      - src/translations/en.json
+
+env:
+  NODE_VERSION: 14
+
+jobs:
+  upload:
+    name: Upload
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2
+
+      - name: Upload Translations
+        run: |
+          export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
+
+          ./script/translations_upload_base

.gitignore

@@ -1,11 +1,23 @@
-build
-build-translations/*
-node_modules/*
-npm-debug.log
 .DS_Store
-hass_frontend/*
 .reify-cache
 
+# build
+build
+hass_frontend/*
+dist
+
+# yarn
+.yarn/*
+!.yarn/patches
+!.yarn/releases
+!.yarn/plugins
+!.yarn/sdks
+!.yarn/versions
+.pnp.*
+node_modules/*
+yarn-error.log
+npm-debug.log
+
 # Python stuff
 *.py[cod]
 *.egg
@@ -14,11 +26,8 @@ hass_frontend/*
 # venv stuff
 pyvenv.cfg
 pip-selfcheck.json
-venv
+venv/*
 .venv
-lib
-bin
-dist
 
 # vscode
 .vscode/*
@@ -31,9 +40,8 @@ src/cast/dev_const.ts
 
 # Secrets
 .lokalise_token
-yarn-error.log
 
-#asdf
+# asdf
 .tool-versions
 
 # Home Assistant config

.nvmrc

@@ -1 +1 @@
-12.1
+14

.prettierignore

@@ -1,5 +1,4 @@
 build
-build-translations/*
 translations/*
 node_modules/*
 hass_frontend/*

.yarn/patches/@lit-labs/virtualizer/event-target-shim.patch

@@ -0,0 +1,29 @@
+diff --git a/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js b/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
+index d92179f7fd5315203f870a6963e871dc8ddf6c0c..362e284121b97e0fba0925225777aebc32e26b8d 100644
+--- a/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
++++ b/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
+@@ -1,14 +1,15 @@
+-let _ET, ET;
++let _ET;
++let ET;
+ export default async function EventTarget() {
+-    return ET || init();
++  return ET || init();
+ }
+ async function init() {
+-    _ET = window.EventTarget;
+-    try {
+-        new _ET();
+-    }
+-    catch (_a) {
+-        _ET = (await import('event-target-shim')).EventTarget;
+-    }
+-    return (ET = _ET);
++  _ET = window.EventTarget;
++  try {
++    new _ET();
++  } catch (_a) {
++    _ET = (await import("event-target-shim")).default.EventTarget;
++  }
++  return (ET = _ET);
+ }

.yarn/patches/@polymer/polymer/pr-5569.patch

@@ -0,0 +1,34 @@
+diff --git a/lib/legacy/class.js b/lib/legacy/class.js
+index aee2511be1cd9bf900ee552bc98190c1631c57c0..f2f499d68bf52034cac9c28307c99e8ce6b8417d 100644
+--- a/lib/legacy/class.js
++++ b/lib/legacy/class.js
+@@ -304,17 +304,23 @@ function GenerateClassFromInfo(info, Base, behaviors) {
+       // only proceed if the generated class' prototype has not been registered.
+       const generatedProto = PolymerGenerated.prototype;
+       if (!generatedProto.hasOwnProperty(JSCompiler_renameProperty('__hasRegisterFinished', generatedProto))) {
+-        generatedProto.__hasRegisterFinished = true;
++        // make sure legacy lifecycle is called on the *element*'s prototype
++        // and not the generated class prototype; if the element has been
++        // extended, these are *not* the same.
++        const proto = Object.getPrototypeOf(this);
++        // Only set flag when generated prototype itself is registered,
++        // as this element may be extended from, and needs to run `registered`
++        // on all behaviors on the subclass as well.
++        if (proto === generatedProto) {
++          generatedProto.__hasRegisterFinished = true;
++        }
+         // ensure superclass is registered first.
+         super._registered();
+         // copy properties onto the generated class lazily if we're optimizing,
+-        if (legacyOptimizations) {
++        if (legacyOptimizations && !Object.hasOwnProperty(generatedProto, '__hasCopiedProperties')) {
++          generatedProto.__hasCopiedProperties = true;
+           copyPropertiesToProto(generatedProto);
+         }
+-        // make sure legacy lifecycle is called on the *element*'s prototype
+-        // and not the generated class prototype; if the element has been
+-        // extended, these are *not* the same.
+-        const proto = Object.getPrototypeOf(this);
+         let list = lifecycle.beforeRegister;
+         if (list) {
+           for (let i=0; i < list.length; i++) {

.yarnrc.yml

@@ -0,0 +1,9 @@
+nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-typescript.cjs
+    spec: "@yarnpkg/plugin-typescript"
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"
+
+yarnPath: .yarn/releases/yarn-3.0.2.cjs

README.md

@@ -14,7 +14,7 @@ This is the repository for the official [Home Assistant](https://home-assistant.
 - Development: [Instructions](https://developers.home-assistant.io/docs/frontend/development/)
 - Production build: `script/build_frontend`
 - Gallery: `cd gallery && script/develop_gallery`
-- Hass.io: [Instructions](https://developers.home-assistant.io/docs/en/hassio_hass.html)
+- Supervisor: [Instructions](https://developers.home-assistant.io/docs/supervisor/developing)
 
 ## Frontend development
 

azure-pipelines-netlify.yml

@@ -1,30 +0,0 @@
-# https://dev.azure.com/home-assistant
-
-trigger: none
-pr: none
-schedules:
-  - cron: "0 0 * * *"
-    displayName: "build preview"
-    branches:
-      include:
-      - dev
-    always: true
-variables:
-  - group: netlify
-
-jobs:
-
-- job: 'Netlify_preview'
-  pool:
-    vmImage: 'ubuntu-latest'
-  steps:
-  - script: |
-      # Cast
-      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_CAST}
-
-      # Demo
-      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_DEMO}
-
-      # Gallery
-      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_GALLERY}
-    displayName: 'Trigger netlify build preview'

azure-pipelines-release.yml

@@ -1,59 +0,0 @@
-# https://dev.azure.com/home-assistant
-
-trigger:
-  batch: true
-  tags:
-    include:
-      - "*"
-pr: none
-variables:
-  - name: versionWheels
-    value: '1.10.1-3.7-alpine3.11'
-  - name: versionNode
-    value: '12.1'
-  - group: twine
-resources:
-  repositories:
-    - repository: azure
-      type: github
-      name: 'home-assistant/ci-azure'
-      endpoint: 'home-assistant'
-
-
-stages:
-  - stage: "Validate"
-    jobs:
-    - template: templates/azp-job-version.yaml@azure
-
-  - stage: "Build"
-    jobs:
-      - job: "ReleasePython"
-        pool:
-          vmImage: "ubuntu-latest"
-        steps:
-          - task: UsePythonVersion@0
-            displayName: "Use Python 3.7"
-            inputs:
-              versionSpec: "3.7"
-          - task: NodeTool@0
-            displayName: "Use Node $(versionNode)"
-            inputs:
-              versionSpec: "$(versionNode)"
-          - script: pip install twine wheel
-            displayName: "Install tools"
-          - script: |
-              export TWINE_USERNAME="$(twineUser)"
-              export TWINE_PASSWORD="$(twinePassword)"
-
-              script/release
-            displayName: "Build and release package"
-  - stage: "Wheels"
-    jobs:
-      - template: templates/azp-job-wheels.yaml@azure
-        parameters:
-          builderVersion: '$(versionWheels)'
-          wheelsRequirement: 'requirement.txt'
-          preBuild:
-          - script: |
-              sleep 240
-              echo "home-assistant-frontend==$(Build.SourceBranchName)" > requirement.txt

azure-pipelines-translation.yml

@@ -1,70 +0,0 @@
-# https://dev.azure.com/home-assistant
-
-trigger:
-  batch: true
-  branches:
-    include:
-    - dev
-  paths:
-    include:
-    - translations/en.json
-pr: none
-schedules:
-  - cron: "30 0 * * *"
-    displayName: "frontend translation update"
-    branches:
-      include:
-      - dev
-    always: true
-variables:
-- group: translation
-resources:
-  repositories:
-  - repository: azure
-    type: github
-    name: 'home-assistant/ci-azure'
-    endpoint: 'home-assistant'
-
-
-jobs:
-
-- job: 'Upload'
-  pool:
-    vmImage: 'ubuntu-latest'
-  steps:
-  - task: NodeTool@0
-    displayName: 'Use Node 12.x'
-    inputs:
-      versionSpec: '12.x'
-  - script: |
-      export LOKALISE_TOKEN="$(lokaliseToken)"
-      export AZURE_BRANCH="$(Build.SourceBranchName)"
-
-      ./script/translations_upload_base
-    displayName: 'Upload Translation'
-
-- job: 'Download'
-  dependsOn:
-  - 'Upload'
-  condition: or(eq(variables['Build.Reason'], 'Schedule'), eq(variables['Build.Reason'], 'Manual'))
-  pool:
-    vmImage: 'ubuntu-latest'
-  steps:
-  - task: NodeTool@0
-    displayName: 'Use Node 12.x'
-    inputs:
-      versionSpec: '12.x'
-  - template: templates/azp-step-git-init.yaml@azure
-  - script: |
-      export LOKALISE_TOKEN="$(lokaliseToken)"
-      export AZURE_BRANCH="$(Build.SourceBranchName)"
-
-      npm install
-      ./script/translations_download
-    displayName: 'Download Translation'
-  - script: |
-      git checkout dev
-      git add translation
-      git commit -am "[ci skip] Translation update"
-      git push
-    displayName: 'Update translation'

build-scripts/babel-plugins/inline-constants-plugin.js

@@ -0,0 +1,170 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+const path = require("path");
+
+// Currently only supports CommonJS modules, as require is synchronous. `import` would need babel running asynchronous.
+module.exports = function inlineConstants(babel, options, cwd) {
+  const t = babel.types;
+
+  if (!Array.isArray(options.modules)) {
+    throw new TypeError(
+      "babel-plugin-inline-constants: expected a `modules` array to be passed"
+    );
+  }
+
+  if (options.resolveExtensions && !Array.isArray(options.resolveExtensions)) {
+    throw new TypeError(
+      "babel-plugin-inline-constants: expected `resolveExtensions` to be an array"
+    );
+  }
+
+  const ignoreModuleNotFound = options.ignoreModuleNotFound;
+  const resolveExtensions = options.resolveExtensions;
+
+  const hasRelativeModules = options.modules.some(
+    (module) => module.startsWith(".") || module.startsWith("/")
+  );
+
+  const modules = Object.fromEntries(
+    options.modules.map((module) => {
+      const absolute = module.startsWith(".")
+        ? require.resolve(module, { paths: [cwd] })
+        : module;
+      // eslint-disable-next-line import/no-dynamic-require
+      return [absolute, require(absolute)];
+    })
+  );
+
+  const toLiteral = (value) => {
+    if (typeof value === "string") {
+      return t.stringLiteral(value);
+    }
+
+    if (typeof value === "number") {
+      return t.numericLiteral(value);
+    }
+
+    if (typeof value === "boolean") {
+      return t.booleanLiteral(value);
+    }
+
+    if (value === null) {
+      return t.nullLiteral();
+    }
+
+    throw new Error(
+      "babel-plugin-inline-constants: cannot handle non-literal `" + value + "`"
+    );
+  };
+
+  const resolveAbsolute = (value, state, resolveExtensionIndex) => {
+    if (!state.filename) {
+      throw new TypeError(
+        "babel-plugin-inline-constants: expected a `filename` to be set for files"
+      );
+    }
+
+    if (resolveExtensions && resolveExtensionIndex !== undefined) {
+      value += resolveExtensions[resolveExtensionIndex];
+    }
+
+    try {
+      return require.resolve(value, { paths: [path.dirname(state.filename)] });
+    } catch (error) {
+      if (
+        error.code === "MODULE_NOT_FOUND" &&
+        resolveExtensions &&
+        (resolveExtensionIndex === undefined ||
+          resolveExtensionIndex < resolveExtensions.length - 1)
+      ) {
+        const resolveExtensionIdx = (resolveExtensionIndex || -1) + 1;
+        return resolveAbsolute(value, state, resolveExtensionIdx);
+      }
+
+      if (error.code === "MODULE_NOT_FOUND" && ignoreModuleNotFound) {
+        return undefined;
+      }
+      throw error;
+    }
+  };
+
+  const importDeclaration = (p, state) => {
+    if (p.node.type !== "ImportDeclaration") {
+      return;
+    }
+    const absolute =
+      hasRelativeModules && p.node.source.value.startsWith(".")
+        ? resolveAbsolute(p.node.source.value, state)
+        : p.node.source.value;
+
+    if (!absolute || !(absolute in modules)) {
+      return;
+    }
+
+    const module = modules[absolute];
+
+    for (const specifier of p.node.specifiers) {
+      if (
+        specifier.type === "ImportDefaultSpecifier" &&
+        specifier.local &&
+        specifier.local.type === "Identifier"
+      ) {
+        if (!("default" in module)) {
+          throw new Error(
+            "babel-plugin-inline-constants: cannot access default export from `" +
+              p.node.source.value +
+              "`"
+          );
+        }
+
+        const variableValue = toLiteral(module.default);
+        const variable = t.variableDeclarator(
+          t.identifier(specifier.local.name),
+          variableValue
+        );
+
+        p.insertBefore({
+          type: "VariableDeclaration",
+          kind: "const",
+          declarations: [variable],
+        });
+      } else if (
+        specifier.type === "ImportSpecifier" &&
+        specifier.imported &&
+        specifier.imported.type === "Identifier" &&
+        specifier.local &&
+        specifier.local.type === "Identifier"
+      ) {
+        if (!(specifier.imported.name in module)) {
+          throw new Error(
+            "babel-plugin-inline-constants: cannot access `" +
+              specifier.imported.name +
+              "` from `" +
+              p.node.source.value +
+              "`"
+          );
+        }
+
+        const variableValue = toLiteral(module[specifier.imported.name]);
+        const variable = t.variableDeclarator(
+          t.identifier(specifier.local.name),
+          variableValue
+        );
+
+        p.insertBefore({
+          type: "VariableDeclaration",
+          kind: "const",
+          declarations: [variable],
+        });
+      } else {
+        throw new Error("Cannot handle specifier `" + specifier.type + "`");
+      }
+    }
+    p.remove();
+  };
+
+  return {
+    visitor: {
+      ImportDeclaration: importDeclaration,
+    },
+  };
+};

build-scripts/bundle.js

@@ -1,11 +1,10 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 const env = require("./env.js");
 const paths = require("./paths.js");
 
 // Files from NPM Packages that should not be imported
 module.exports.ignorePackages = ({ latestBuild }) => [
-  // Bloats bundle and it's not used.
-  path.resolve(require.resolve("moment"), "../locale"),
   // Part of yaml.js and only used for !!js functions that we don't use
   require.resolve("esprima"),
 ];
@@ -19,7 +18,8 @@ module.exports.emptyPackages = ({ latestBuild }) =>
     require.resolve("@polymer/paper-styles/default-theme.js"),
     // Loads stuff from a CDN
     require.resolve("@polymer/font-roboto/roboto.js"),
-    require.resolve("@vaadin/vaadin-material-styles/font-roboto.js"),
+    require.resolve("@vaadin/vaadin-material-styles/typography.js"),
+    require.resolve("@vaadin/vaadin-material-styles/font-icons.js"),
     // Compatibility not needed for latest builds
     latestBuild &&
       // wrapped in require.resolve so it blows up if file no longer exists
@@ -51,17 +51,29 @@ module.exports.terserOptions = (latestBuild) => ({
 
 module.exports.babelOptions = ({ latestBuild }) => ({
   babelrc: false,
+  compact: false,
   presets: [
     !latestBuild && [
-      require("@babel/preset-env").default,
+      "@babel/preset-env",
       {
         useBuiltIns: "entry",
-        corejs: "3.6",
+        corejs: "3.15",
+        bugfixes: true,
       },
     ],
-    require("@babel/preset-typescript").default,
+    "@babel/preset-typescript",
   ].filter(Boolean),
   plugins: [
+    [
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/inline-constants-plugin.js"
+      ),
+      {
+        modules: ["@mdi/js"],
+        ignoreModuleNotFound: true,
+      },
+    ],
     // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
     !latestBuild && [
       "@babel/plugin-proposal-object-rest-spread",
@@ -70,25 +82,21 @@ module.exports.babelOptions = ({ latestBuild }) => ({
     // Only support the syntax, Webpack will handle it.
     "@babel/plugin-syntax-import-meta",
     "@babel/plugin-syntax-dynamic-import",
+    "@babel/plugin-syntax-top-level-await",
     "@babel/plugin-proposal-optional-chaining",
     "@babel/plugin-proposal-nullish-coalescing-operator",
-    [
-      require("@babel/plugin-proposal-decorators").default,
-      { decoratorsBeforeExport: true },
-    ],
-    [
-      require("@babel/plugin-proposal-class-properties").default,
-      { loose: true },
-    ],
+    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
+    ["@babel/plugin-proposal-private-methods", { loose: true }],
+    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
+    ["@babel/plugin-proposal-class-properties", { loose: true }],
   ].filter(Boolean),
+  exclude: [
+    // \\ for Windows, / for Mac OS and Linux
+    /node_modules[\\/]core-js/,
+    /node_modules[\\/]webpack[\\/]buildin/,
+  ],
 });
 
-// Are already ES5, cause warnings when babelified.
-module.exports.babelExclude = () => [
-  require.resolve("@mdi/js/mdi.js"),
-  require.resolve("hls.js"),
-];
-
 const outputPath = (outputRoot, latestBuild) =>
   path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
 

build-scripts/env.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const fs = require("fs");
 const path = require("path");
 const paths = require("./paths.js");

build-scripts/gulp/app.js

@@ -5,6 +5,7 @@ const env = require("../env");
 
 require("./clean.js");
 require("./translations.js");
+require("./locale-data.js");
 require("./gen-icons-json.js");
 require("./gather-static.js");
 require("./compress.js");
@@ -26,7 +27,8 @@ gulp.task(
       "gen-icons-json",
       "gen-pages-dev",
       "gen-index-app-dev",
-      "build-translations"
+      "build-translations",
+      "build-locale-data"
     ),
     "copy-static-app",
     env.useWDS()
@@ -44,11 +46,11 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-app",
     env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
-    ...// Don't compress running tests
-    (env.isTest() ? [] : ["compress-app"]),
+    // Don't compress running tests
+    ...(env.isTest() ? [] : ["compress-app"]),
     gulp.parallel(
       "gen-pages-prod",
       "gen-index-app-prod",

build-scripts/gulp/cast.js

@@ -18,7 +18,7 @@ gulp.task(
     },
     "clean-cast",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     "gen-index-cast-dev",
     env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
@@ -33,7 +33,7 @@ gulp.task(
     },
     "clean-cast",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
     "gen-index-cast-prod"

build-scripts/gulp/clean.js

@@ -5,32 +5,32 @@ require("./translations");
 
 gulp.task(
   "clean",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.app_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.app_output_root, paths.build_dir])
+  )
 );
 
 gulp.task(
   "clean-demo",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.demo_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.demo_output_root, paths.build_dir])
+  )
 );
 
 gulp.task(
   "clean-cast",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.cast_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.cast_output_root, paths.build_dir])
+  )
 );
 
-gulp.task("clean-hassio", function cleanOutputAndBuildDir() {
-  return del([paths.hassio_output_root, paths.build_dir]);
-});
+gulp.task("clean-hassio", () =>
+  del([paths.hassio_output_root, paths.build_dir])
+);
 
 gulp.task(
   "clean-gallery",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.gallery_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.gallery_output_root, paths.build_dir])
+  )
 );

build-scripts/gulp/demo.js

@@ -20,7 +20,12 @@ gulp.task(
     },
     "clean-demo",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "gen-index-demo-dev", "build-translations"),
+    gulp.parallel(
+      "gen-icons-json",
+      "gen-index-demo-dev",
+      "build-translations",
+      "build-locale-data"
+    ),
     "copy-static-demo",
     env.useRollup() ? "rollup-dev-server-demo" : "webpack-dev-server-demo"
   )
@@ -35,7 +40,7 @@ gulp.task(
     "clean-demo",
     // Cast needs to be backwards compatible and older HA has no translations
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-demo",
     env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
     "gen-index-demo-prod"

build-scripts/gulp/entry-html.js

@@ -302,15 +302,23 @@ gulp.task("gen-index-hassio-prod", async () => {
 
 function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
   fs.mkdirSync(paths.hassio_output_root, { recursive: true });
+  // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
   fs.writeFileSync(
     path.resolve(paths.hassio_output_root, "entrypoint.js"),
     `
-try {
-  new Function("import('${latestEntrypoint}')")();
-} catch (err) {
+function loadES5() {
   var el = document.createElement('script');
   el.src = '${es5Entrypoint}';
   document.body.appendChild(el);
+}
+if (/.*Version\\/(?:11|12)(?:\\.\\d+)*.*Safari\\//.test(navigator.userAgent)) {
+    loadES5();
+} else {
+  try {
+    new Function("import('${latestEntrypoint}')")();
+  } catch (err) {
+    loadES5();
+  }
 }
   `,
     { encoding: "utf-8" }

build-scripts/gulp/gallery.js

@@ -51,6 +51,7 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
+      "build-locale-data",
       "gather-gallery-demos"
     ),
     "copy-static-gallery",
@@ -70,6 +71,7 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
+      "build-locale-data",
       "gather-gallery-demos"
     ),
     "copy-static-gallery",

build-scripts/gulp/gather-static.js

@@ -2,7 +2,6 @@
 
 const gulp = require("gulp");
 const path = require("path");
-const cpx = require("cpx");
 const fs = require("fs-extra");
 const paths = require("../paths");
 
@@ -13,19 +12,28 @@ const polyPath = (...parts) => path.resolve(paths.polymer_dir, ...parts);
 const copyFileDir = (fromFile, toDir) =>
   fs.copySync(fromFile, path.join(toDir, path.basename(fromFile)));
 
-const genStaticPath = (staticDir) => (...parts) =>
-  path.resolve(staticDir, ...parts);
+const genStaticPath =
+  (staticDir) =>
+  (...parts) =>
+    path.resolve(staticDir, ...parts);
 
 function copyTranslations(staticDir) {
   const staticPath = genStaticPath(staticDir);
 
   // Translation output
   fs.copySync(
-    polyPath("build-translations/output"),
+    polyPath("build/translations/output"),
     staticPath("translations")
   );
 }
 
+function copyLocaleData(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+
+  // Locale data output
+  fs.copySync(polyPath("build/locale-data"), staticPath("locale-data"));
+}
+
 function copyMdiIcons(staticDir) {
   const staticPath = genStaticPath(staticDir);
 
@@ -62,9 +70,12 @@ function copyLoaderJS(staticDir) {
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
-  cpx.copySync(
-    npmPath("roboto-fontface/fonts/roboto/*.woff2"),
-    staticPath("fonts/roboto")
+  fs.copySync(
+    npmPath("roboto-fontface/fonts/roboto/"),
+    staticPath("fonts/roboto/"),
+    {
+      filter: (src) => !src.includes(".") || src.endsWith(".woff2"),
+    }
   );
 }
 
@@ -80,11 +91,26 @@ function copyMapPanel(staticDir) {
   );
 }
 
+gulp.task("copy-locale-data", async () => {
+  const staticDir = paths.app_output_static;
+  copyLocaleData(staticDir);
+});
+
 gulp.task("copy-translations-app", async () => {
   const staticDir = paths.app_output_static;
   copyTranslations(staticDir);
 });
 
+gulp.task("copy-translations-supervisor", async () => {
+  const staticDir = paths.hassio_output_static;
+  copyTranslations(staticDir);
+});
+
+gulp.task("copy-locale-data-supervisor", async () => {
+  const staticDir = paths.hassio_output_static;
+  copyLocaleData(staticDir);
+});
+
 gulp.task("copy-static-app", async () => {
   const staticDir = paths.app_output_static;
   // Basic static files
@@ -94,6 +120,7 @@ gulp.task("copy-static-app", async () => {
   copyPolyfills(staticDir);
   copyFonts(staticDir);
   copyTranslations(staticDir);
+  copyLocaleData(staticDir);
   copyMdiIcons(staticDir);
 
   // Panel assets
@@ -114,6 +141,7 @@ gulp.task("copy-static-demo", async () => {
   copyMapPanel(paths.demo_output_static);
   copyFonts(paths.demo_output_static);
   copyTranslations(paths.demo_output_static);
+  copyLocaleData(paths.demo_output_static);
   copyMdiIcons(paths.demo_output_static);
 });
 
@@ -128,6 +156,7 @@ gulp.task("copy-static-cast", async () => {
   copyMapPanel(paths.cast_output_static);
   copyFonts(paths.cast_output_static);
   copyTranslations(paths.cast_output_static);
+  copyLocaleData(paths.cast_output_static);
   copyMdiIcons(paths.cast_output_static);
 });
 
@@ -143,5 +172,6 @@ gulp.task("copy-static-gallery", async () => {
   copyMapPanel(paths.gallery_output_static);
   copyFonts(paths.gallery_output_static);
   copyTranslations(paths.gallery_output_static);
+  copyLocaleData(paths.gallery_output_static);
   copyMdiIcons(paths.gallery_output_static);
 });

build-scripts/gulp/hassio.js

@@ -1,15 +1,14 @@
 const gulp = require("gulp");
-const fs = require("fs");
-const path = require("path");
 
 const env = require("../env");
-const paths = require("../paths");
 
 require("./clean.js");
 require("./gen-icons-json.js");
 require("./webpack.js");
 require("./compress.js");
 require("./rollup.js");
+require("./gather-static.js");
+require("./translations.js");
 
 gulp.task(
   "develop-hassio",
@@ -20,6 +19,10 @@ gulp.task(
     "clean-hassio",
     "gen-icons-json",
     "gen-index-hassio-dev",
+    "build-supervisor-translations",
+    "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-locale-data-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -32,6 +35,10 @@ gulp.task(
     },
     "clean-hassio",
     "gen-icons-json",
+    "build-supervisor-translations",
+    "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-locale-data-supervisor",
     env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
     "gen-index-hassio-prod",
     ...// Don't compress running tests

build-scripts/gulp/locale-data.js

@@ -0,0 +1,74 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+
+const del = require("del");
+const path = require("path");
+const gulp = require("gulp");
+const fs = require("fs");
+const paths = require("../paths");
+
+const outDir = "build/locale-data";
+
+gulp.task("clean-locale-data", () => del([outDir]));
+
+gulp.task("ensure-locale-data-build-dir", (done) => {
+  if (!fs.existsSync(outDir)) {
+    fs.mkdirSync(outDir, { recursive: true });
+  }
+  done();
+});
+
+const modules = {
+  "intl-relativetimeformat": "RelativeTimeFormat",
+  "intl-datetimeformat": "DateTimeFormat",
+  "intl-numberformat": "NumberFormat",
+};
+
+gulp.task("create-locale-data", (done) => {
+  const translationMeta = JSON.parse(
+    fs.readFileSync(
+      path.join(paths.translations_src, "translationMetadata.json")
+    )
+  );
+  Object.entries(modules).forEach(([module, className]) => {
+    Object.keys(translationMeta).forEach((lang) => {
+      try {
+        const localeData = String(
+          fs.readFileSync(
+            require.resolve(`@formatjs/${module}/locale-data/${lang}.js`)
+          )
+        )
+          .replace(
+            new RegExp(
+              `\\/\\*\\s*@generated\\s*\\*\\/\\s*\\/\\/\\s*prettier-ignore\\s*if\\s*\\(Intl\\.${className}\\s*&&\\s*typeof\\s*Intl\\.${className}\\.__addLocaleData\\s*===\\s*'function'\\)\\s*{\\s*Intl\\.${className}\\.__addLocaleData\\(`,
+              "im"
+            ),
+            ""
+          )
+          .replace(/\)\s*}/im, "");
+        // make sure we have valid JSON
+        JSON.parse(localeData);
+        if (!fs.existsSync(path.join(outDir, module))) {
+          fs.mkdirSync(path.join(outDir, module), { recursive: true });
+        }
+        fs.writeFileSync(
+          path.join(outDir, `${module}/${lang}.json`),
+          localeData
+        );
+      } catch (e) {
+        if (e.code !== "MODULE_NOT_FOUND") {
+          throw e;
+        }
+      }
+    });
+    done();
+  });
+});
+
+gulp.task(
+  "build-locale-data",
+  gulp.series(
+    "clean-locale-data",
+    "ensure-locale-data-build-dir",
+    "create-locale-data"
+  )
+);

build-scripts/gulp/translations.js

@@ -1,3 +1,5 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+
 const crypto = require("crypto");
 const del = require("del");
 const path = require("path");
@@ -15,7 +17,7 @@ const paths = require("../paths");
 
 const inFrontendDir = "translations/frontend";
 const inBackendDir = "translations/backend";
-const workDir = "build-translations";
+const workDir = "build/translations";
 const fullDir = workDir + "/full";
 const coreDir = workDir + "/core";
 const outDir = workDir + "/output";
@@ -26,13 +28,6 @@ gulp.task("translations-enable-merge-backend", (done) => {
   done();
 });
 
-String.prototype.rsplit = function (sep, maxsplit) {
-  var split = this.split(sep);
-  return maxsplit
-    ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit))
-    : split;
-};
-
 // Panel translations which should be split from the core translations.
 const TRANSLATION_FRAGMENTS = Object.keys(
   require("../../src/translations/en.json").ui.panel
@@ -40,7 +35,7 @@ const TRANSLATION_FRAGMENTS = Object.keys(
 
 function recursiveFlatten(prefix, data) {
   let output = {};
-  Object.keys(data).forEach(function (key) {
+  Object.keys(data).forEach((key) => {
     if (typeof data[key] === "object") {
       output = {
         ...output,
@@ -101,15 +96,19 @@ function lokaliseTransform(data, original, file) {
     if (value instanceof Object) {
       output[key] = lokaliseTransform(value, original, file);
     } else {
-      output[key] = value.replace(re_key_reference, (match, key) => {
-        const replace = key.split("::").reduce((tr, k) => {
+      output[key] = value.replace(re_key_reference, (_match, lokalise_key) => {
+        const replace = lokalise_key.split("::").reduce((tr, k) => {
           if (!tr) {
-            throw Error(`Invalid key placeholder ${key} in ${file.path}`);
+            throw Error(
+              `Invalid key placeholder ${lokalise_key} in ${file.path}`
+            );
           }
           return tr[k];
         }, original);
         if (typeof replace !== "string") {
-          throw Error(`Invalid key placeholder ${key} in ${file.path}`);
+          throw Error(
+            `Invalid key placeholder ${lokalise_key} in ${file.path}`
+          );
         }
         return replace;
       });
@@ -118,18 +117,16 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", function () {
-  return del([workDir]);
-});
+gulp.task("clean-translations", () => del([workDir]));
 
 gulp.task("ensure-translations-build-dir", (done) => {
   if (!fs.existsSync(workDir)) {
-    fs.mkdirSync(workDir);
+    fs.mkdirSync(workDir, { recursive: true });
   }
   done();
 });
 
-gulp.task("create-test-metadata", function (cb) {
+gulp.task("create-test-metadata", (cb) => {
   fs.writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
@@ -143,17 +140,13 @@ gulp.task("create-test-metadata", function (cb) {
 
 gulp.task(
   "create-test-translation",
-  gulp.series("create-test-metadata", function createTestTranslation() {
-    return gulp
+  gulp.series("create-test-metadata", () =>
+    gulp
       .src(path.join(paths.translations_src, "en.json"))
-      .pipe(
-        transform(function (data, file) {
-          return recursiveEmpty(data);
-        })
-      )
+      .pipe(transform((data, _file) => recursiveEmpty(data)))
       .pipe(rename("test.json"))
-      .pipe(gulp.dest(workDir));
-  })
+      .pipe(gulp.dest(workDir))
+  )
 );
 
 /**
@@ -165,7 +158,7 @@ gulp.task(
  * project is buildable immediately after merging new translation keys, since
  * the Lokalise update to translations/en.json will not happen immediately.
  */
-gulp.task("build-master-translation", function () {
+gulp.task("build-master-translation", () => {
   const src = [path.join(paths.translations_src, "en.json")];
 
   if (mergeBackend) {
@@ -174,11 +167,7 @@ gulp.task("build-master-translation", function () {
 
   return gulp
     .src(src)
-    .pipe(
-      transform(function (data, file) {
-        return lokaliseTransform(data, data, file);
-      })
-    )
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
       merge({
         fileName: "translationMaster.json",
@@ -187,18 +176,14 @@ gulp.task("build-master-translation", function () {
     .pipe(gulp.dest(workDir));
 });
 
-gulp.task("build-merged-translations", function () {
-  return gulp
+gulp.task("build-merged-translations", () =>
+  gulp
     .src([inFrontendDir + "/*.json", workDir + "/test.json"], {
       allowEmpty: true,
     })
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
-      transform(function (data, file) {
-        return lokaliseTransform(data, data, file);
-      })
-    )
-    .pipe(
-      foreach(function (stream, file) {
+      foreach((stream, file) => {
         // For each language generate a merged json file. It begins with the master
         // translation as a failsafe for untranslated strings, and merges all parent
         // tags into one file for each specific subtag
@@ -230,17 +215,17 @@ gulp.task("build-merged-translations", function () {
           )
           .pipe(gulp.dest(fullDir));
       })
-    );
-});
+    )
+);
 
-var taskName;
+let taskName;
 
 const splitTasks = [];
 TRANSLATION_FRAGMENTS.forEach((fragment) => {
   taskName = "build-translation-fragment-" + fragment;
-  gulp.task(taskName, function () {
+  gulp.task(taskName, () =>
     // Return only the translations for this fragment.
-    return gulp
+    gulp
       .src(fullDir + "/*.json")
       .pipe(
         transform((data) => ({
@@ -251,32 +236,33 @@ TRANSLATION_FRAGMENTS.forEach((fragment) => {
           },
         }))
       )
-      .pipe(gulp.dest(workDir + "/" + fragment));
-  });
+      .pipe(gulp.dest(workDir + "/" + fragment))
+  );
   splitTasks.push(taskName);
 });
 
 taskName = "build-translation-core";
-gulp.task(taskName, function () {
+gulp.task(taskName, () =>
   // Remove the fragment translations from the core translation.
-  return gulp
+  gulp
     .src(fullDir + "/*.json")
     .pipe(
-      transform((data, file) => {
+      transform((data, _file) => {
         TRANSLATION_FRAGMENTS.forEach((fragment) => {
           delete data.ui.panel[fragment];
         });
+        delete data.supervisor;
         return data;
       })
     )
-    .pipe(gulp.dest(coreDir));
-});
+    .pipe(gulp.dest(coreDir))
+);
 
 splitTasks.push(taskName);
 
-gulp.task("build-flattened-translations", function () {
+gulp.task("build-flattened-translations", () =>
   // Flatten the split versions of our translations, and move them into outDir
-  return gulp
+  gulp
     .src(
       TRANSLATION_FRAGMENTS.map(
         (fragment) => workDir + "/" + fragment + "/*.json"
@@ -284,41 +270,45 @@ gulp.task("build-flattened-translations", function () {
       { base: workDir }
     )
     .pipe(
-      transform(function (data) {
+      transform((data) =>
         // Polymer.AppLocalizeBehavior requires flattened json
-        return flatten(data);
-      })
+        flatten(data)
+      )
     )
     .pipe(
       rename((filePath) => {
         if (filePath.dirname === "core") {
           filePath.dirname = "";
         }
+        // In dev we create the file with the fake hash in the filename
+        if (!env.isProdBuild()) {
+          filePath.basename += "-dev";
+        }
       })
     )
-    .pipe(gulp.dest(outDir));
-});
+    .pipe(gulp.dest(outDir))
+);
 
 const fingerprints = {};
 
-gulp.task(
-  "build-translation-fingerprints",
-  function fingerprintTranslationFiles() {
-    // Fingerprint full file of each language
-    const files = fs.readdirSync(fullDir);
+gulp.task("build-translation-fingerprints", () => {
+  // Fingerprint full file of each language
+  const files = fs.readdirSync(fullDir);
 
-    for (let i = 0; i < files.length; i++) {
-      fingerprints[files[i].split(".")[0]] = {
-        // In dev we create fake hashes
-        hash: env.isProdBuild()
-          ? crypto
-              .createHash("md5")
-              .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
-              .digest("hex")
-          : "dev",
-      };
-    }
+  for (let i = 0; i < files.length; i++) {
+    fingerprints[files[i].split(".")[0]] = {
+      // In dev we create fake hashes
+      hash: env.isProdBuild()
+        ? crypto
+            .createHash("md5")
+            .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
+            .digest("hex")
+        : "dev",
+    };
+  }
 
+  // In dev we create the file with the fake hash in the filename
+  if (env.isProdBuild()) {
     mapFiles(outDir, ".json", (filename) => {
       const parsed = path.parse(filename);
 
@@ -334,12 +324,88 @@ gulp.task(
         }`
       );
     });
-
-    const stream = source("translationFingerprints.json");
-    stream.write(JSON.stringify(fingerprints));
-    process.nextTick(() => stream.end());
-    return stream.pipe(vinylBuffer()).pipe(gulp.dest(workDir));
   }
+
+  const stream = source("translationFingerprints.json");
+  stream.write(JSON.stringify(fingerprints));
+  process.nextTick(() => stream.end());
+  return stream.pipe(vinylBuffer()).pipe(gulp.dest(workDir));
+});
+
+gulp.task("build-translation-fragment-supervisor", () =>
+  gulp
+    .src(fullDir + "/*.json")
+    .pipe(transform((data) => data.supervisor))
+    .pipe(
+      rename((filePath) => {
+        // In dev we create the file with the fake hash in the filename
+        if (!env.isProdBuild()) {
+          filePath.basename += "-dev";
+        }
+      })
+    )
+    .pipe(gulp.dest(workDir + "/supervisor"))
+);
+
+gulp.task("build-translation-flatten-supervisor", () =>
+  gulp
+    .src(workDir + "/supervisor/*.json")
+    .pipe(
+      transform((data) =>
+        // Polymer.AppLocalizeBehavior requires flattened json
+        flatten(data)
+      )
+    )
+    .pipe(gulp.dest(outDir))
+);
+
+gulp.task("build-translation-write-metadata", () =>
+  gulp
+    .src(
+      [
+        path.join(paths.translations_src, "translationMetadata.json"),
+        workDir + "/testMetadata.json",
+        workDir + "/translationFingerprints.json",
+      ],
+      { allowEmpty: true }
+    )
+    .pipe(merge({}))
+    .pipe(
+      transform((data) => {
+        const newData = {};
+        Object.entries(data).forEach(([key, value]) => {
+          // Filter out translations without native name.
+          if (value.nativeName) {
+            newData[key] = value;
+          } else {
+            // eslint-disable-next-line no-console
+            console.warn(
+              `Skipping language ${key}. Native name was not translated.`
+            );
+          }
+        });
+        return newData;
+      })
+    )
+    .pipe(
+      transform((data) => ({
+        fragments: TRANSLATION_FRAGMENTS,
+        translations: data,
+      }))
+    )
+    .pipe(rename("translationMetadata.json"))
+    .pipe(gulp.dest(workDir))
+);
+
+gulp.task(
+  "create-translations",
+  gulp.series(
+    env.isProdBuild() ? (done) => done() : "create-test-translation",
+    "build-master-translation",
+    "build-merged-translations",
+    gulp.parallel(...splitTasks),
+    "build-flattened-translations"
+  )
 );
 
 gulp.task(
@@ -347,48 +413,22 @@ gulp.task(
   gulp.series(
     "clean-translations",
     "ensure-translations-build-dir",
-    env.isProdBuild() ? (done) => done() : "create-test-translation",
-    "build-master-translation",
-    "build-merged-translations",
-    gulp.parallel(...splitTasks),
-    "build-flattened-translations",
+    "create-translations",
     "build-translation-fingerprints",
-    function writeMetadata() {
-      return gulp
-        .src(
-          [
-            path.join(paths.translations_src, "translationMetadata.json"),
-            workDir + "/testMetadata.json",
-            workDir + "/translationFingerprints.json",
-          ],
-          { allowEmpty: true }
-        )
-        .pipe(merge({}))
-        .pipe(
-          transform(function (data) {
-            const newData = {};
-            Object.entries(data).forEach(([key, value]) => {
-              // Filter out translations without native name.
-              if (data[key].nativeName) {
-                newData[key] = data[key];
-              } else {
-                console.warn(
-                  `Skipping language ${key}. Native name was not translated.`
-                );
-              }
-              if (data[key]) newData[key] = value;
-            });
-            return newData;
-          })
-        )
-        .pipe(
-          transform((data) => ({
-            fragments: TRANSLATION_FRAGMENTS,
-            translations: data,
-          }))
-        )
-        .pipe(rename("translationMetadata.json"))
-        .pipe(gulp.dest(workDir));
-    }
+    "build-translation-write-metadata"
+  )
+);
+
+gulp.task(
+  "build-supervisor-translations",
+  gulp.series(
+    "clean-translations",
+    "ensure-translations-build-dir",
+    "build-master-translation",
+    "build-merged-translations",
+    "build-translation-fragment-supervisor",
+    "build-translation-flatten-supervisor",
+    "build-translation-fingerprints",
+    "build-translation-write-metadata"
   )
 );

build-scripts/gulp/webpack.js

@@ -1,4 +1,6 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 // Tasks to run webpack.
+const fs = require("fs");
 const gulp = require("gulp");
 const webpack = require("webpack");
 const WebpackDevServer = require("webpack-dev-server");
@@ -18,6 +20,13 @@ const bothBuilds = (createConfigFunc, params) => [
   createConfigFunc({ ...params, latestBuild: false }),
 ];
 
+const isWsl =
+  fs.existsSync("/proc/version") &&
+  fs
+    .readFileSync("/proc/version", "utf-8")
+    .toLocaleLowerCase()
+    .includes("microsoft");
+
 /**
  * @param {{
  *   compiler: import("webpack").Compiler,
@@ -26,26 +35,29 @@ const bothBuilds = (createConfigFunc, params) => [
  *   listenHost?: string
  * }}
  */
-const runDevServer = ({
+const runDevServer = async ({
   compiler,
   contentBase,
   port,
   listenHost = "localhost",
-}) =>
-  new WebpackDevServer(compiler, {
-    open: true,
-    watchContentBase: true,
-    contentBase,
-  }).listen(port, listenHost, function (err) {
-    if (err) {
-      throw err;
-    }
-    // Server listening
-    log(
-      "[webpack-dev-server]",
-      `Project is running at http://localhost:${port}`
-    );
-  });
+}) => {
+  const server = new WebpackDevServer(
+    {
+      open: true,
+      host: listenHost,
+      port,
+      static: {
+        directory: contentBase,
+        watch: true,
+      },
+    },
+    compiler
+  );
+
+  await server.start();
+  // Server listening
+  log("[webpack-dev-server]", `Project is running at http://localhost:${port}`);
+};
 
 const doneHandler = (done) => (err, stats) => {
   if (err) {
@@ -57,6 +69,7 @@ const doneHandler = (done) => (err, stats) => {
   }
 
   if (stats.hasErrors() || stats.hasWarnings()) {
+    // eslint-disable-next-line no-console
     console.log(stats.toString("minimal"));
   }
 
@@ -78,13 +91,14 @@ const prodBuild = (conf) =>
 
 gulp.task("webpack-watch-app", () => {
   // This command will run forever because we don't close compiler
-  webpack(createAppConfig({ isProdBuild: false, latestBuild: true })).watch(
-    { ignored: /build-translations/ },
-    doneHandler()
-  );
+  webpack(
+    process.env.ES5
+      ? bothBuilds(createAppConfig, { isProdBuild: false })
+      : createAppConfig({ isProdBuild: false, latestBuild: true })
+  ).watch({ poll: isWsl }, doneHandler());
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
-    gulp.series("build-translations", "copy-translations-app")
+    gulp.series("create-translations", "copy-translations-app")
   );
 });
 
@@ -96,13 +110,13 @@ gulp.task("webpack-prod-app", () =>
   )
 );
 
-gulp.task("webpack-dev-server-demo", () => {
+gulp.task("webpack-dev-server-demo", () =>
   runDevServer({
     compiler: webpack(bothBuilds(createDemoConfig, { isProdBuild: false })),
     contentBase: paths.demo_output_root,
     port: 8090,
-  });
-});
+  })
+);
 
 gulp.task("webpack-prod-demo", () =>
   prodBuild(
@@ -112,15 +126,15 @@ gulp.task("webpack-prod-demo", () =>
   )
 );
 
-gulp.task("webpack-dev-server-cast", () => {
+gulp.task("webpack-dev-server-cast", () =>
   runDevServer({
     compiler: webpack(bothBuilds(createCastConfig, { isProdBuild: false })),
     contentBase: paths.cast_output_root,
     port: 8080,
     // Accessible from the network, because that's how Cast hits it.
     listenHost: "0.0.0.0",
-  });
-});
+  })
+);
 
 gulp.task("webpack-prod-cast", () =>
   prodBuild(
@@ -137,7 +151,12 @@ gulp.task("webpack-watch-hassio", () => {
       isProdBuild: false,
       latestBuild: true,
     })
-  ).watch({}, doneHandler());
+  ).watch({ ignored: /build/, poll: isWsl }, doneHandler());
+
+  gulp.watch(
+    path.join(paths.translations_src, "en.json"),
+    gulp.series("build-supervisor-translations", "copy-translations-supervisor")
+  );
 });
 
 gulp.task("webpack-prod-hassio", () =>
@@ -148,14 +167,14 @@ gulp.task("webpack-prod-hassio", () =>
   )
 );
 
-gulp.task("webpack-dev-server-gallery", () => {
+gulp.task("webpack-dev-server-gallery", () =>
   runDevServer({
     // We don't use the es5 build, but the dev server will fuck up the publicPath if we don't
     compiler: webpack(bothBuilds(createGalleryConfig, { isProdBuild: false })),
     contentBase: paths.gallery_output_root,
     port: 8100,
-  });
-});
+  })
+);
 
 gulp.task("webpack-prod-gallery", () =>
   prodBuild(

build-scripts/paths.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 
 module.exports = {
@@ -34,6 +35,7 @@ module.exports = {
 
   hassio_dir: path.resolve(__dirname, "../hassio"),
   hassio_output_root: path.resolve(__dirname, "../hassio/build"),
+  hassio_output_static: path.resolve(__dirname, "../hassio/build/static"),
   hassio_output_latest: path.resolve(
     __dirname,
     "../hassio/build/frontend_latest"

build-scripts/rollup.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 
 const commonjs = require("@rollup/plugin-commonjs");
@@ -32,88 +33,77 @@ const createRollupConfig = ({
   publicPath,
   dontHash,
   isWDS,
-}) => {
-  return {
-    /**
-     * @type { import("rollup").InputOptions }
-     */
-    inputOptions: {
-      input: entry,
-      // Some entry points contain no JavaScript. This setting silences a warning about that.
-      // https://rollupjs.org/guide/en/#preserveentrysignatures
-      preserveEntrySignatures: false,
-      plugins: [
-        ignore({
-          files: bundle.emptyPackages({ latestBuild }),
+}) => ({
+  /**
+   * @type { import("rollup").InputOptions }
+   */
+  inputOptions: {
+    input: entry,
+    // Some entry points contain no JavaScript. This setting silences a warning about that.
+    // https://rollupjs.org/guide/en/#preserveentrysignatures
+    preserveEntrySignatures: false,
+    plugins: [
+      ignore({
+        files: bundle.emptyPackages({ latestBuild }),
+      }),
+      resolve({
+        extensions,
+        preferBuiltins: false,
+        browser: true,
+        rootDir: paths.polymer_dir,
+      }),
+      commonjs(),
+      json(),
+      babel({
+        ...bundle.babelOptions({ latestBuild }),
+        extensions,
+        babelHelpers: isWDS ? "inline" : "bundled",
+      }),
+      string({
+        // Import certain extensions as strings
+        include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
+      }),
+      replace(bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })),
+      !isWDS &&
+        manifest({
+          publicPath,
         }),
-        resolve({
-          extensions,
-          preferBuiltins: false,
-          browser: true,
-          rootDir: paths.polymer_dir,
+      !isWDS && worker(),
+      !isWDS && dontHashPlugin({ dontHash }),
+      !isWDS && isProdBuild && terser(bundle.terserOptions(latestBuild)),
+      !isWDS &&
+        isStatsBuild &&
+        visualizer({
+          // https://github.com/btd/rollup-plugin-visualizer#options
+          open: true,
+          sourcemap: true,
         }),
-        commonjs({
-          namedExports: {
-            "js-yaml": ["safeDump", "safeLoad"],
-          },
-        }),
-        json(),
-        babel({
-          ...bundle.babelOptions({ latestBuild }),
-          extensions,
-          exclude: bundle.babelExclude(),
-          babelHelpers: isWDS ? "inline" : "bundled",
-        }),
-        string({
-          // Import certain extensions as strings
-          include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
-        }),
-        replace(
-          bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
-        ),
-        !isWDS &&
-          manifest({
-            publicPath,
-          }),
-        !isWDS && worker(),
-        !isWDS && dontHashPlugin({ dontHash }),
-        !isWDS && isProdBuild && terser(bundle.terserOptions(latestBuild)),
-        !isWDS &&
-          isStatsBuild &&
-          visualizer({
-            // https://github.com/btd/rollup-plugin-visualizer#options
-            open: true,
-            sourcemap: true,
-          }),
-      ].filter(Boolean),
-    },
-    /**
-     * @type { import("rollup").OutputOptions }
-     */
-    outputOptions: {
-      // https://rollupjs.org/guide/en/#outputdir
-      dir: outputPath,
-      // https://rollupjs.org/guide/en/#outputformat
-      format: latestBuild ? "es" : "systemjs",
-      // https://rollupjs.org/guide/en/#outputexternallivebindings
-      externalLiveBindings: false,
-      // https://rollupjs.org/guide/en/#outputentryfilenames
-      // https://rollupjs.org/guide/en/#outputchunkfilenames
-      // https://rollupjs.org/guide/en/#outputassetfilenames
-      entryFileNames:
-        isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
-      chunkFileNames:
-        isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
-      assetFileNames:
-        isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
-      // https://rollupjs.org/guide/en/#outputsourcemap
-      sourcemap: isProdBuild ? true : "inline",
-    },
-  };
-};
+    ].filter(Boolean),
+  },
+  /**
+   * @type { import("rollup").OutputOptions }
+   */
+  outputOptions: {
+    // https://rollupjs.org/guide/en/#outputdir
+    dir: outputPath,
+    // https://rollupjs.org/guide/en/#outputformat
+    format: latestBuild ? "es" : "systemjs",
+    // https://rollupjs.org/guide/en/#outputexternallivebindings
+    externalLiveBindings: false,
+    // https://rollupjs.org/guide/en/#outputentryfilenames
+    // https://rollupjs.org/guide/en/#outputchunkfilenames
+    // https://rollupjs.org/guide/en/#outputassetfilenames
+    entryFileNames:
+      isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
+    chunkFileNames: isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
+    assetFileNames: isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
+    // https://rollupjs.org/guide/en/#outputsourcemap
+    sourcemap: isProdBuild ? true : "inline",
+  },
+});
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) => {
-  return createRollupConfig(
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) =>
+  createRollupConfig(
     bundle.config.app({
       isProdBuild,
       latestBuild,
@@ -121,31 +111,24 @@ const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) => {
       isWDS,
     })
   );
-};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createRollupConfig(
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createRollupConfig(
     bundle.config.demo({
       isProdBuild,
       latestBuild,
       isStatsBuild,
     })
   );
-};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
-};
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
 
 module.exports = {
   createAppConfig,

build-scripts/util.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 const fs = require("fs");
 

build-scripts/webpack.js

@@ -1,10 +1,12 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const webpack = require("webpack");
 const path = require("path");
 const TerserPlugin = require("terser-webpack-plugin");
-const ManifestPlugin = require("webpack-manifest-plugin");
+const { WebpackManifestPlugin } = require("webpack-manifest-plugin");
 const paths = require("./paths.js");
-const bundle = require("./bundle");
+const bundle = require("./bundle.js");
 const log = require("fancy-log");
+const WebpackBar = require("webpackbar");
 
 class LogStartCompilePlugin {
   ignoredFirst = false;
@@ -36,6 +38,7 @@ const createWebpackConfig = ({
   const ignorePackages = bundle.ignorePackages({ latestBuild });
   return {
     mode: isProdBuild ? "production" : "development",
+    target: ["web", latestBuild ? "es2017" : "es5"],
     devtool: isProdBuild
       ? "cheap-module-source-map"
       : "eval-cheap-module-source-map",
@@ -45,15 +48,18 @@ const createWebpackConfig = ({
       rules: [
         {
           test: /\.m?js$|\.ts$/,
-          exclude: bundle.babelExclude(),
           use: {
             loader: "babel-loader",
-            options: bundle.babelOptions({ latestBuild }),
+            options: {
+              ...bundle.babelOptions({ latestBuild }),
+              cacheDirectory: !isProdBuild,
+              cacheCompression: false,
+            },
           },
         },
         {
           test: /\.css$/,
-          use: "raw-loader",
+          type: "asset/source",
         },
       ],
     },
@@ -65,9 +71,12 @@ const createWebpackConfig = ({
           terserOptions: bundle.terserOptions(latestBuild),
         }),
       ],
+      moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
     },
     plugins: [
-      new ManifestPlugin({
+      new WebpackBar({ fancy: !isProdBuild }),
+      new WebpackManifestPlugin({
         // Only include the JS of entrypoints
         filter: (file) => file.isInitial && !file.name.endsWith(".map"),
       }),
@@ -93,6 +102,7 @@ const createWebpackConfig = ({
               ? path.resolve(context, resource)
               : require.resolve(resource);
           } catch (err) {
+            // eslint-disable-next-line no-console
             console.error(
               "Error in Home Assistant ignore plugin",
               resource,
@@ -110,82 +120,61 @@ const createWebpackConfig = ({
         new RegExp(bundle.emptyPackages({ latestBuild }).join("|")),
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
-      // We need to change the import of the polyfill for EventTarget, so we replace the polyfill file with our customized one
-      new webpack.NormalModuleReplacementPlugin(
-        new RegExp(
-          require.resolve(
-            "lit-virtualizer/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js"
-          )
-        ),
-        path.resolve(paths.polymer_dir, "src/resources/EventTarget-ponyfill.js")
-      ),
       !isProdBuild && new LogStartCompilePlugin(),
     ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
+      alias: {
+        "lit/decorators$": "lit/decorators.js",
+        "lit/directive$": "lit/directive.js",
+        "lit/directives/until$": "lit/directives/until.js",
+        "lit/directives/class-map$": "lit/directives/class-map.js",
+        "lit/directives/style-map$": "lit/directives/style-map.js",
+        "lit/directives/if-defined$": "lit/directives/if-defined.js",
+        "lit/directives/guard$": "lit/directives/guard.js",
+        "lit/directives/cache$": "lit/directives/cache.js",
+        "lit/directives/repeat$": "lit/directives/repeat.js",
+        "lit/polyfill-support$": "lit/polyfill-support.js",
+      },
     },
     output: {
       filename: ({ chunk }) => {
-        if (!isProdBuild || dontHash.has(chunk.name)) {
+        if (!isProdBuild || isStatsBuild || dontHash.has(chunk.name)) {
           return `${chunk.name}.js`;
         }
         return `${chunk.name}.${chunk.hash.substr(0, 8)}.js`;
       },
-      environment: {
-        // The environment supports arrow functions ('() => { ... }').
-        arrowFunction: latestBuild,
-        // The environment supports BigInt as literal (123n).
-        bigIntLiteral: false,
-        // The environment supports const and let for variable declarations.
-        const: latestBuild,
-        // The environment supports destructuring ('{ a, b } = obj').
-        destructuring: latestBuild,
-        // The environment supports an async import() function to import EcmaScript modules.
-        dynamicImport: latestBuild,
-        // The environment supports 'for of' iteration ('for (const x of array) { ... }').
-        forOf: latestBuild,
-        // The environment supports ECMAScript Module syntax to import ECMAScript modules (import ... from '...').
-        module: latestBuild,
-      },
       chunkFilename:
-        isProdBuild && !isStatsBuild
-          ? "chunk.[chunkhash].js"
-          : "[name].chunk.js",
+        isProdBuild && !isStatsBuild ? "[chunkhash:8].js" : "[id].chunk.js",
       path: outputPath,
       publicPath,
       // To silence warning in worker plugin
       globalObject: "self",
     },
+    experiments: {
+      topLevelAwait: true,
+    },
   };
 };
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createWebpackConfig(
     bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
   );
-};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createWebpackConfig(
     bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
   );
-};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.hassio({ isProdBuild, latestBuild })
-  );
-};
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
 
 module.exports = {
   createAppConfig,

cast/src/html/launcher-faq.html.template

@@ -139,7 +139,7 @@
           Your authentication credentials or Home Assistant url are never sent
           to the Cloud. You can validate this behavior in
           <a
-            href="https://github.com/home-assistant/home-assistant-polymer/tree/dev/cast"
+            href="https://github.com/home-assistant/frontend/tree/dev/cast"
             target="_blank"
             >the source code</a
           >.

cast/src/launcher/layout/hc-cast.ts

@@ -1,16 +1,9 @@
+import "@material/mwc-button/mwc-button";
 import "@polymer/paper-item/paper-icon-item";
 import "@polymer/paper-listbox/paper-listbox";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property, state } from "lit/decorators";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
   castSendShowLovelaceView,
@@ -32,7 +25,6 @@ import {
 import "../../../../src/layouts/hass-loading-screen";
 import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
 import "./hc-layout";
-import "@material/mwc-button/mwc-button";
 
 @customElement("hc-cast")
 class HcCast extends LitElement {
@@ -42,21 +34,19 @@ class HcCast extends LitElement {
 
   @property() public castManager!: CastManager;
 
-  @internalProperty() private askWrite = false;
+  @state() private askWrite = false;
 
-  @internalProperty() private lovelaceConfig?: LovelaceConfig | null;
+  @state() private lovelaceConfig?: LovelaceConfig | null;
 
   protected render(): TemplateResult {
     if (this.lovelaceConfig === undefined) {
-      return html` <hass-loading-screen no-toolbar></hass-loading-screen>> `;
+      return html`<hass-loading-screen no-toolbar></hass-loading-screen>`;
     }
 
     const error =
       this.castManager.castState === "NO_DEVICES_AVAILABLE"
         ? html`
-            <p>
-              There were no suitable Chromecast devices to cast to found.
-            </p>
+            <p>There were no suitable Chromecast devices to cast to found.</p>
           `
         : undefined;
 
@@ -201,12 +191,12 @@ class HcCast extends LitElement {
       }
       this.connection.close();
       location.reload();
-    } catch (err) {
+    } catch (err: any) {
       alert("Unable to log out!");
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       .center-item {
         display: flex;

cast/src/launcher/layout/hc-connect.ts

@@ -11,15 +11,8 @@ import {
   getAuth,
   getAuthOptions,
 } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  TemplateResult,
-  internalProperty,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
@@ -60,19 +53,19 @@ const INTRO = html`
 
 @customElement("hc-connect")
 export class HcConnect extends LitElement {
-  @internalProperty() private loading = false;
+  @state() private loading = false;
 
   // If we had stored credentials but we cannot connect,
   // show a screen asking retry or logout.
-  @internalProperty() private cannotConnect = false;
+  @state() private cannotConnect = false;
 
-  @internalProperty() private error?: string | TemplateResult;
+  @state() private error?: string | TemplateResult;
 
-  @internalProperty() private auth?: Auth;
+  @state() private auth?: Auth;
 
-  @internalProperty() private connection?: Connection;
+  @state() private connection?: Connection;
 
-  @internalProperty() private castManager?: CastManager | null;
+  @state() private castManager?: CastManager | null;
 
   private openDemo = false;
 
@@ -86,9 +79,7 @@ export class HcConnect extends LitElement {
           </div>
           <div class="card-actions">
             <a href="/">
-              <mwc-button>
-                Retry
-              </mwc-button>
+              <mwc-button> Retry </mwc-button>
             </a>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleLogout}>Log out</mwc-button>
@@ -221,7 +212,7 @@ export class HcConnect extends LitElement {
     let url: URL;
     try {
       url = new URL(value);
-    } catch (err) {
+    } catch (err: any) {
       this.error = "Invalid URL";
       return;
     }
@@ -249,7 +240,7 @@ export class HcConnect extends LitElement {
     try {
       this.loading = true;
       auth = await getAuth(options);
-    } catch (err) {
+    } catch (err: any) {
       if (init === "saved-tokens" && err === ERR_CANNOT_CONNECT) {
         this.cannotConnect = true;
         return;
@@ -268,7 +259,7 @@ export class HcConnect extends LitElement {
 
     try {
       conn = await createConnection({ auth });
-    } catch (err) {
+    } catch (err: any) {
       // In case of saved tokens, silently solve problems.
       if (init === "saved-tokens") {
         if (err === ERR_CANNOT_CONNECT) {
@@ -294,12 +285,12 @@ export class HcConnect extends LitElement {
     try {
       saveTokens(null);
       location.reload();
-    } catch (err) {
+    } catch (err: any) {
       alert("Unable to log out!");
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       .card-content a {
         color: var(--primary-color);

cast/src/launcher/layout/hc-layout.ts

@@ -4,15 +4,8 @@ import {
   getUser,
   HassUser,
 } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
 import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
@@ -69,7 +62,7 @@ class HcLayout extends LitElement {
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: flex;
@@ -98,8 +91,12 @@ class HcLayout extends LitElement {
         line-height: 32px;
         padding: 24px 16px 16px;
         display: block;
+        margin: 0;
       }
 
+      .hero {
+        border-radius: 4px 4px 0 0;
+      }
       .subtitle {
         font-size: 14px;
         color: var(--secondary-text-color);

cast/src/receiver/demo/cast-demo-lovelace.ts

@@ -5,8 +5,8 @@ import {
 import { castContext } from "../cast_context";
 
 export const castDemoLovelace: () => LovelaceConfig = () => {
-  const touchSupported = castContext.getDeviceCapabilities()
-    .touch_input_supported;
+  const touchSupported =
+    castContext.getDeviceCapabilities().touch_input_supported;
   return {
     views: [
       {

cast/src/receiver/layout/hc-demo.ts

@@ -1,10 +1,5 @@
-import {
-  customElement,
-  html,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { html, TemplateResult } from "lit";
+import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import {
@@ -21,7 +16,7 @@ import "./hc-lovelace";
 class HcDemo extends HassElement {
   @property({ attribute: false }) public lovelacePath!: string;
 
-  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
+  @state() private _lovelaceConfig?: LovelaceConfig;
 
   protected render(): TemplateResult {
     if (!this._lovelaceConfig) {
@@ -38,10 +33,10 @@ class HcDemo extends HassElement {
 
   protected firstUpdated(changedProps) {
     super.firstUpdated(changedProps);
-    this._initialize();
+    this._initializeHass();
   }
 
-  private async _initialize() {
+  private async _initializeHass() {
     const initial: Partial<MockHomeAssistant> = {
       // Override updateHass so that the correct hass lifecycle methods are called
       updateHass: (hassUpdate: Partial<HomeAssistant>) =>

cast/src/receiver/layout/hc-launch-screen.ts

@@ -1,12 +1,5 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
 import { HomeAssistant } from "../../../../src/types";
 
 @customElement("hc-launch-screen")
@@ -29,7 +22,7 @@ class HcLaunchScreen extends LitElement {
     `;
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: block;

cast/src/receiver/layout/hc-lovelace.ts

@@ -1,12 +1,5 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
@@ -35,11 +28,12 @@ class HcLovelace extends LitElement {
     }
     const lovelace: Lovelace = {
       config: this.lovelaceConfig,
+      rawConfig: this.lovelaceConfig,
       editMode: false,
       urlPath: this.urlPath!,
       enableFullEditMode: () => undefined,
       mode: "storage",
-      language: "en",
+      locale: this.hass.locale,
       saveConfig: async () => undefined,
       deleteConfig: async () => undefined,
       setEditMode: () => undefined,
@@ -90,10 +84,11 @@ class HcLovelace extends LitElement {
     return undefined;
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         min-height: 100vh;
+        height: 0;
         display: flex;
         flex-direction: column;
         box-sizing: border-box;

cast/src/receiver/layout/hc-main.ts

@@ -3,12 +3,8 @@ import {
   getAuth,
   UnsubscribeFunc,
 } from "home-assistant-js-websocket";
-import {
-  customElement,
-  html,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { html, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CAST_NS } from "../../../../src/cast/const";
 import {
   ConnectMessage,
@@ -36,13 +32,13 @@ let resourcesLoaded = false;
 
 @customElement("hc-main")
 export class HcMain extends HassElement {
-  @internalProperty() private _showDemo = false;
+  @state() private _showDemo = false;
 
-  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
+  @state() private _lovelaceConfig?: LovelaceConfig;
 
-  @internalProperty() private _lovelacePath: string | number | null = null;
+  @state() private _lovelacePath: string | number | null = null;
 
-  @internalProperty() private _error?: string;
+  @state() private _error?: string;
 
   private _unsubLovelace?: UnsubscribeFunc;
 
@@ -152,14 +148,14 @@ export class HcMain extends HassElement {
           expires_in: 0,
         }),
       });
-    } catch (err) {
+    } catch (err: any) {
       this._error = this._getErrorMessage(err);
       return;
     }
     let connection;
     try {
       connection = await createConnection({ auth });
-    } catch (err) {
+    } catch (err: any) {
       this._error = this._getErrorMessage(err);
       return;
     }
@@ -197,7 +193,7 @@ export class HcMain extends HassElement {
         this._unsubLovelace = llColl.subscribe((lovelaceConfig) =>
           this._handleNewLovelaceConfig(lovelaceConfig)
         );
-      } catch (err) {
+      } catch (err: any) {
         // eslint-disable-next-line
         console.log("Error fetching Lovelace configuration", err, msg);
         // Generate a Lovelace config.
@@ -221,11 +217,17 @@ export class HcMain extends HassElement {
   }
 
   private async _generateLovelaceConfig() {
-    const { generateLovelaceConfigFromHass } = await import(
-      "../../../../src/panels/lovelace/common/generate-lovelace-config"
+    const { generateLovelaceDashboardStrategy } = await import(
+      "../../../../src/panels/lovelace/strategies/get-strategy"
     );
     this._handleNewLovelaceConfig(
-      await generateLovelaceConfigFromHass(this.hass!)
+      await generateLovelaceDashboardStrategy(
+        {
+          hass: this.hass!,
+          narrow: false,
+        },
+        "original-states"
+      )
     );
   }
 

cast/src/receiver/second-load.ts

@@ -1,4 +1,4 @@
 import "web-animations-js/web-animations-next-lite.min";
-import "../../../src/resources/roboto";
 import "../../../src/resources/ha-style";
+import "../../../src/resources/roboto";
 import "./layout/hc-lovelace";

demo/src/configs/arsaboo/entities.ts

@@ -54,6 +54,8 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
       state: "21",
       attributes: {
         friendly_name: "Living room temperature",
+        device_class: "temperature",
+        unit_of_measurement: "°C",
       },
     },
     "sensor.study_temp_rounded": {
@@ -61,6 +63,8 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
       state: "23",
       attributes: {
         friendly_name: "Study temperature",
+        device_class: "temperature",
+        unit_of_measurement: "°C",
       },
     },
     "sensor.living_room": {
@@ -242,11 +246,15 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
 
     "light.living_room_lights": {
       entity_id: "light.living_room_lights",
-      state: "off",
+      state: "on",
       attributes: {
         min_mireds: 111,
         max_mireds: 400,
+        brightness: 175,
+        color_temp: 300,
+        supported_color_modes: ["brightness", "color_temp"],
         friendly_name: "Living Room Lights",
+        color_mode: "color_temp",
         supported_features: 55,
       },
     },
@@ -259,13 +267,27 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
     },
     "light.kitchen_lights": {
       entity_id: "light.kitchen_lights",
+      state: "on",
+      attributes: {
+        min_mireds: 111,
+        max_mireds: 400,
+        brightness: 200,
+        rgb_color: [255, 175, 96],
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "rgb",
+        friendly_name: "Kitchen Lights",
+        supported_features: 55,
+      },
+    },
+    "light.lifx5": {
+      entity_id: "light.lifx5",
       state: "off",
       attributes: {
-        friendly_name: "Kitchen lights",
+        supported_color_modes: ["brightness"],
+        friendly_name: "Garage Lights",
         supported_features: 1,
       },
     },
-
     "sensor.plexspy": {
       entity_id: "sensor.plexspy",
       state: "0",
@@ -478,16 +500,6 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
         icon: "hademo:history",
       },
     },
-    "light.lifx5": {
-      entity_id: "light.lifx5",
-      state: "on",
-      attributes: {
-        min_mireds: 111,
-        max_mireds: 400,
-        friendly_name: "Garage lights",
-        supported_features: 55,
-      },
-    },
     "sensor.alok_to_home": {
       entity_id: "sensor.alok_to_home",
       state: "41",

demo/src/configs/arsaboo/lovelace.ts

@@ -12,6 +12,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
         {
           type: "entities",
           title: localize("ui.panel.page-demo.config.arsaboo.labels.lights"),
+          state_color: true,
           entities: [
             {
               entity: "light.kitchen_lights",
@@ -28,6 +29,11 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
             },
           ],
         },
+        {
+          title: "Energy distribution today",
+          type: "energy-distribution",
+          link_dashboard: true,
+        },
         {
           type: "thermostat",
           entity: "climate.upstairs",
@@ -112,8 +118,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -195,8 +200,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -276,8 +280,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -314,8 +317,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {

demo/src/configs/demo-configs.ts

@@ -1,5 +1,6 @@
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { Lovelace } from "../../../src/panels/lovelace/types";
+import { energyEntities } from "../stubs/entities";
 import { DemoConfig } from "./types";
 
 export const demoConfigs: Array<() => Promise<DemoConfig>> = [
@@ -12,9 +13,8 @@ export const demoConfigs: Array<() => Promise<DemoConfig>> = [
 // eslint-disable-next-line import/no-mutable-exports
 export let selectedDemoConfigIndex = 0;
 // eslint-disable-next-line import/no-mutable-exports
-export let selectedDemoConfig: Promise<DemoConfig> = demoConfigs[
-  selectedDemoConfigIndex
-]();
+export let selectedDemoConfig: Promise<DemoConfig> =
+  demoConfigs[selectedDemoConfigIndex]();
 
 export const setDemoConfig = async (
   hass: MockHomeAssistant,
@@ -28,6 +28,7 @@ export const setDemoConfig = async (
   selectedDemoConfig = confProm;
 
   hass.addEntities(config.entities(hass.localize), true);
+  hass.addEntities(energyEntities());
   lovelace.saveConfig(config.lovelace(hass.localize));
   hass.mockTheme(config.theme());
 };

demo/src/configs/jimpower/entities.ts

@@ -653,7 +653,7 @@ export const demoEntitiesJimpower: DemoConfig["entities"] = () =>
       entity_id: "binary_sensor.smoke_sensor_158d0001b8ddc7",
       state: "off",
       attributes: {
-        Density: 0,
+        density: 0,
         battery_level: 59,
         friendly_name: "Downstairs Smoke Detector",
         device_class: "smoke",
@@ -663,7 +663,7 @@ export const demoEntitiesJimpower: DemoConfig["entities"] = () =>
       entity_id: "binary_sensor.smoke_sensor_158d0001b8deba",
       state: "off",
       attributes: {
-        Density: 0,
+        density: 0,
         battery_level: 65,
         friendly_name: "Upstairs Smoke Detector",
         device_class: "smoke",

demo/src/configs/jimpower/lovelace.ts

@@ -3,49 +3,7 @@ import { DemoConfig } from "../types";
 
 export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
   name: "Kingia Castle",
-  resources: [
-    // {
-    //   url: "/local/custom_ui/dark-sky-weather-card.js?v=4",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom_ui/mini-media-player-bundle.js?v=0.9.8",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom_ui/tracker-card.js?v=0.1.5",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom_ui/surveillance-card.js?v=0.0.1",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom_ui/mini-graph-card-bundle.js?v=0.1.0",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom_ui/slider-entity-row.js?v=d6da75",
-    //   type: "js",
-    // },
-    // {
-    //   url:
-    //     "/local/custom_ui/compact-custom-header/compact-custom-header.js?v=0.2.7",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom_ui/waze-card.js?v=1.1.1",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom_ui/circle-sensor-card.js?v=1.2.0",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom_ui/monster-card.js?v=0.2.3",
-    //   type: "js",
-    // },
-  ],
+  resources: [],
   views: [
     {
       cards: [
@@ -603,89 +561,6 @@ export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
         },
         {
           cards: [
-            // {
-            //   style: {
-            //     "background-image": 'url("/assets/jimpower/cardbackK.png")',
-            //     "background-size": "100% 400px",
-            //     "box-shadow": "3px 3px rgba(0,0,0,0.4)",
-            //     "background-repeat": "no-repeat",
-            //     color: "#999999",
-            //     "border-radius": "20px",
-            //     border: "solid 1px rgba(100,100,100,0.3)",
-            //     "background-color": "rgba(50,50,50,0.3)",
-            //   },
-            //   type: "custom:card-modder",
-            //   card: {
-            //     entity_visibility: "sensor.dark_sky_visibility",
-            //     entity_sun: "sun.sun",
-            //     entity_daily_summary:
-            //       "sensor.bom_gc_forecast_detailed_summary_0",
-            //     entity_temperature: "sensor.bom_temp",
-            //     entity_forecast_high_temp_3:
-            //       "sensor.bom_gc_forecast_max_temp_c_3",
-            //     entity_forecast_high_temp_2:
-            //       "sensor.bom_gc_forecast_max_temp_c_2",
-            //     entity_forecast_high_temp_5:
-            //       "sensor.bom_gc_forecast_max_temp_c_5",
-            //     entity_forecast_high_temp_4:
-            //       "sensor.bom_gc_forecast_max_temp_c_4",
-            //     entity_wind_speed: "sensor.bom_wind_sp",
-            //     entity_forecast_icon_4: "sensor.dark_sky_icon_4",
-            //     entity_forecast_icon_5: "sensor.dark_sky_icon_5",
-            //     entity_forecast_icon_2: "sensor.dark_sky_icon_2",
-            //     entity_forecast_icon_3: "sensor.dark_sky_icon_3",
-            //     entity_forecast_icon_1: "sensor.dark_sky_icon_1",
-            //     entity_forecast_high_temp_1:
-            //       "sensor.bom_gc_forecast_max_temp_c_1",
-            //     entity_wind_bearing: "sensor.bom_wind_bear",
-            //     entity_forecast_low_temp_2:
-            //       "sensor.bom_gc_forecast_min_temp_c_2",
-            //     entity_forecast_low_temp_3:
-            //       "sensor.bom_gc_forecast_min_temp_c_3",
-            //     entity_pressure: "sensor.bom_pres",
-            //     entity_forecast_low_temp_1:
-            //       "sensor.bom_gc_forecast_min_temp_c_1",
-            //     entity_forecast_low_temp_4:
-            //       "sensor.bom_gc_forecast_min_temp_c_4",
-            //     entity_forecast_low_temp_5:
-            //       "sensor.bom_gc_forecast_min_temp_c_5",
-            //     entity_humidity: "sensor.bom_humd",
-            //     type: "custom:dark-sky-weather-card",
-            //     entity_current_conditions: "sensor.dark_sky_icon",
-            //   },
-            // },
-            // {
-            //   style: {
-            //     "background-image": 'url("/assets/jimpower/home/waze_5.png")',
-            //     "background-size": "100% 400px",
-            //     "box-shadow": "3px 3px rgba(0,0,0,0.4)",
-            //     "background-repeat": "no-repeat",
-            //     "border-radius": "20px",
-            //     border: "solid 1px rgba(100,100,100,0.3)",
-            //     "background-color": "rgba(50,50,50,0.3)",
-            //   },
-            //   type: "custom:card-modder",
-            //   card: {
-            //     entities: [
-            //       {
-            //         name: "James",
-            //         zone: "zone.home",
-            //         entity: "sensor.james_to_home",
-            //       },
-            //       {
-            //         name: "Tina",
-            //         zone: "zone.home",
-            //         entity: "sensor.tina_to_home",
-            //       },
-            //       {
-            //         name: "Work",
-            //         zone: "zone.powertec",
-            //         entity: "sensor.commute_to_work",
-            //       },
-            //     ],
-            //     type: "custom:waze-card",
-            //   },
-            // },
             {
               style: {
                 "border-radius": "20px",
@@ -722,46 +597,8 @@ export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
           ],
           type: "vertical-stack",
         },
-        // {
-        //   cards: [
-        //     {
-        //       style: {
-        //         "border-radius": "20px",
-        //         color: "#999999",
-        //         "box-shadow": "3px 3px rgba(0,0,0,0.4)",
-        //         border: "solid 1px rgba(100,100,100,0.3)",
-        //       },
-        //       type: "custom:card-modder",
-        //       card: {
-        //         type: "picture-entity",
-        //         entity: "camera.bom_radar",
-        //       },
-        //     },
-        //     // {
-        //     //   style: {
-        //     //     "background-image": 'url("/assets/jimpower/cardbackK.png")',
-        //     //     "background-size": "100% 525px",
-        //     //     "box-shadow": "3px 3px rgba(0,0,0,0.4)",
-        //     //     "background-repeat": "no-repeat",
-        //     //     color: "#999999",
-        //     //     "border-radius": "20px",
-        //     //     border: "solid 1px rgba(100,100,100,0.3)",
-        //     //     "background-color": "rgba(50,50,50,0.3)",
-        //     //   },
-        //     //   type: "custom:card-modder",
-        //     //   card: {
-        //     //     title: null,
-        //     //     type: "custom:tracker-card",
-        //     //     trackers: [
-        //     //       "sensor.custom_card_tracker",
-        //     //       "sensor.custom_component_tracker",
-        //     //     ],
-        //     //   },
-        //     // },
-        //   ],
-        //   type: "vertical-stack",
-        // },
       ],
+      path: "home",
       icon: "mdi:castle",
       name: "Home",
       background:
@@ -881,26 +718,13 @@ export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
               card: {
                 image: "/assets/jimpower/security/air_8.jpg",
                 elements: [
-                  {
-                    image:
-                      "https://www.airvisual.com/assets/aqi/ic-face-1-green.svg",
-                    type: "image",
-                    style: {
-                      width: "80px",
-                      top: "30%",
-                      left: "12%",
-                      transform: "none",
-                      height: "80px",
-                    },
-                    entity: "sensor.us_air_pollution_level_2",
-                  },
                   {
                     style: {
                       color: "hsl(120, 41%, 39%)",
                       top: "50%",
                       "font-weight": 600,
-                      "font-size": "20px",
-                      left: "44%",
+                      "font-size": "50px",
+                      left: "30%",
                     },
                     type: "state-label",
                     entity: "sensor.us_air_pollution_level_2",
@@ -920,7 +744,7 @@ export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
                     style: {
                       color: "white",
                       top: "80%",
-                      left: "52%",
+                      left: "48%",
                     },
                     type: "state-icon",
                     entity: "sensor.us_main_pollutant_2",
@@ -1411,6 +1235,7 @@ export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
           type: "vertical-stack",
         },
       ],
+      path: "security",
       icon: "hass:shield-home",
       name: "Security",
       background:

demo/src/configs/kernehed/entities.ts

@@ -101,7 +101,12 @@ export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
     "sensor.zwave_battery_front_door": {
       entity_id: "sensor.zwave_battery_front_door",
       state: "63",
-      attributes: { friendly_name: "Battery", icon: "mdi:battery-60" },
+      attributes: {
+        friendly_name: "Battery",
+        icon: "mdi:battery-60",
+        unit_of_measurement: "%",
+        device_class: "battery",
+      },
     },
     "sensor.oskar_devices": {
       entity_id: "sensor.oskar_devices",
@@ -164,7 +169,7 @@ export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
     },
     "input_select.christmas_pattern": {
       entity_id: "input_select.christmas_pattern",
-      state: "None",
+      state: "Rainbow",
       attributes: {
         options: [
           "None",
@@ -186,7 +191,7 @@ export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
     },
     "input_select.christmas_palette": {
       entity_id: "input_select.christmas_palette",
-      state: "None",
+      state: "Party",
       attributes: {
         options: [
           "None",
@@ -457,7 +462,7 @@ export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
       state: "0.0",
       attributes: {
         unit_of_measurement: "kB/s",
-        friendly_name: "Nedladdning",
+        friendly_name: "Downloading",
         icon: "mdi:file-download",
       },
     },
@@ -471,7 +476,7 @@ export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
       state: "0.0",
       attributes: {
         unit_of_measurement: "kB/s",
-        friendly_name: "Uppladdning",
+        friendly_name: "Uploading",
         icon: "mdi:file-upload",
       },
     },

demo/src/configs/kernehed/lovelace.ts

@@ -2,44 +2,7 @@ import { DemoConfig } from "../types";
 
 export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
   name: "Hem",
-  resources: [
-    // {
-    //   url: "/local/custom-lovelace/monster-card.js",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/mini-media-player-bundle.js?v=0.9.8",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/slideshow-card.js?=1.1.0",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/fold-entity-row.js?v=3ae2c4",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/swipe-card/swipe-card.js?v=2.0.0",
-    //   type: "module",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/upcoming-media-card/upcoming-media-card.js",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/tracker-card.js?v=0.1.5",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/card-tools.js?v=6ce5d0",
-    //   type: "js",
-    // },
-    // {
-    //   url: "/local/custom-lovelace/krisinfo.js?=0.0.1",
-    //   type: "js",
-    // },
-  ],
+  resources: [],
   views: [
     {
       cards: [
@@ -64,7 +27,7 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
                       style: {
                         color: "white",
                         top: "93%",
-                        left: "90%",
+                        left: "85%",
                       },
                       type: "state-label",
                       entity: "sensor.battery_oskar",
@@ -87,7 +50,7 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
                     {
                       style: {
                         color: "white",
-                        top: "92%",
+                        top: "93%",
                         left: "20%",
                       },
                       type: "state-label",
@@ -96,8 +59,8 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
                     {
                       style: {
                         color: "white",
-                        top: "92%",
-                        left: "90%",
+                        top: "93%",
+                        left: "85%",
                       },
                       type: "state-label",
                       entity: "sensor.battery_bella",
@@ -105,7 +68,7 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
                     {
                       style: {
                         color: "white",
-                        top: "92%",
+                        top: "93%",
                         left: "55%",
                       },
                       type: "state-label",
@@ -131,78 +94,6 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
           type: "entities",
           title: "Lock",
         },
-        // {
-        //   filter: {
-        //     exclude: [
-        //       {
-        //         state: "not_home",
-        //       },
-        //     ],
-        //     include: [
-        //       {
-        //         entity_id: "device_tracker.annasiphone",
-        //       },
-        //       {
-        //         entity_id: "device_tracker.iphone_2",
-        //       },
-        //     ],
-        //   },
-        //   type: "custom:monster-card",
-        //   card: {
-        //     show_header_toggle: false,
-        //     type: "entities",
-        //     title: "G\u00e4ster",
-        //   },
-        //   show_empty: false,
-        // },
-        // {
-        //   filter: {
-        //     exclude: [
-        //       {
-        //         state: "Inget",
-        //       },
-        //       {
-        //         state: "i.u.",
-        //       },
-        //     ],
-        //     include: [
-        //       {
-        //         entity_id: "sensor.pollen_al",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_alm",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_salg_vide",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_bjork",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_bok",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_ek",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_grabo",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_gras",
-        //       },
-        //       {
-        //         entity_id: "sensor.pollen_hassel",
-        //       },
-        //     ],
-        //   },
-        //   type: "custom:monster-card",
-        //   card: {
-        //     show_header_toggle: false,
-        //     type: "entities",
-        //     title: "Pollenniv\u00e5er",
-        //   },
-        //   show_empty: false,
-        // },
         {
           cards: [
             {
@@ -226,10 +117,6 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
           ],
           type: "vertical-stack",
         },
-        // {
-        //   url: "https://embed.windy.com/embed2.html",
-        //   type: "iframe",
-        // },
         {
           entities: [
             {
@@ -263,6 +150,7 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
           ],
           type: "glance",
           show_state: false,
+          columns: 4,
         },
         {
           entities: ["sensor.oskar_bluetooth"],
@@ -270,32 +158,6 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
           type: "entities",
           title: "Occupancy",
         },
-        // {
-        //   filter: {
-        //     exclude: [
-        //       {
-        //         state: false,
-        //       },
-        //     ],
-        //     include: [
-        //       {
-        //         entity_id:
-        //           "binary_sensor.fibaro_system_unknown_type0c02_id1003_sensor_2",
-        //       },
-        //       {
-        //         entity_id:
-        //           "binary_sensor.fibaro_system_unknown_type0c02_id1003_sensor_3",
-        //       },
-        //     ],
-        //   },
-        //   type: "custom:monster-card",
-        //   card: {
-        //     show_header_toggle: false,
-        //     type: "entities",
-        //     title: "Brandvarnare",
-        //   },
-        //   show_empty: false,
-        // },
         {
           type: "weather-forecast",
           entity: "weather.smhi_vader",
@@ -378,41 +240,9 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
             "binary_sensor.windows_server",
             "binary_sensor.teamspeak",
             "binary_sensor.harmony_hub",
-            // {
-            //   style: {
-            //     height: "1px",
-            //     width: "85%",
-            //     "margin-left": "auto",
-            //     background: "#62717b",
-            //     "margin-right": "auto",
-            //   },
-            //   type: "divider",
-            // },
-            // {
-            //   items: ["sensor.uptime_router", "sensor.installerad_routeros"],
-            //   head: {
-            //     entity: "binary_sensor.router",
-            //   },
-            //   type: "custom:fold-entity-row",
-            //   group_config: {
-            //     icon: "mdi:router",
-            //   },
-            // },
-            // {
-            //   items: [
-            //     "sensor.uptime_router_server",
-            //     "sensor.installerad_routeros_server",
-            //   ],
-            //   head: {
-            //     entity: "binary_sensor.router_server",
-            //   },
-            //   type: "custom:fold-entity-row",
-            //   group_config: {
-            //     icon: "mdi:router",
-            //   },
-            // },
           ],
           show_header_toggle: false,
+          state_color: true,
           type: "entities",
           title: "Network",
         },
@@ -422,29 +252,10 @@ export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
             "binary_sensor.ubiquiti_switch",
             "binary_sensor.ubiquiti_nvr",
             "binary_sensor.entre_kamera",
-            // {
-            //   items: ["sensor.uptime_ap_1"],
-            //   head: {
-            //     entity: "binary_sensor.accesspunkt_1",
-            //   },
-            //   type: "custom:fold-entity-row",
-            //   group_config: {
-            //     icon: "router-wireless",
-            //   },
-            // },
-            // {
-            //   items: ["sensor.uptime_ap_2"],
-            //   head: {
-            //     entity: "binary_sensor.accesspunkt_2",
-            //   },
-            //   type: "custom:fold-entity-row",
-            //   group_config: {
-            //     icon: "router-wireless",
-            //   },
-            // },
             "sensor.total_clients_wireless",
           ],
           show_header_toggle: false,
+          state_color: true,
           type: "entities",
           title: "Ubiquiti",
         },

demo/src/configs/teachingbirds/entities.ts

@@ -980,8 +980,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         icon: "mdi:account-off",
         custom_ui_state_card: "state-card-custom-ui",
         templates: {
-          icon:
-            "if (state === 'on') return 'mdi:account'; else if (state === 'off') return 'mdi:account-off';\n",
+          icon: "if (state === 'on') return 'mdi:account'; else if (state === 'off') return 'mdi:account-off';\n",
           icon_color:
             "if (state === 'on') return 'rgb(56, 150, 56)'; else if (state === 'off') return 'rgb(249, 251, 255)';\n",
         },
@@ -1005,8 +1004,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         icon: "mdi:account-multiple-minus",
         custom_ui_state_card: "state-card-custom-ui",
         templates: {
-          icon:
-            "if (state === 'on') return 'mdi:account-group'; else if (state === 'off') return 'mdi:account-multiple-minus';\n",
+          icon: "if (state === 'on') return 'mdi:account-group'; else if (state === 'off') return 'mdi:account-multiple-minus';\n",
           icon_color:
             "if (state === 'on') return 'rgb(56, 150, 56)'; else if (state === 'off') return 'rgb(249, 251, 255)';\n",
         },
@@ -1114,6 +1112,9 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         min_mireds: 153,
         max_mireds: 500,
         brightness: 63,
+        color_temp: 200,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         friendly_name: "Upstairs lights",
         supported_features: 63,
         custom_ui_state_card: "state-card-custom-ui",
@@ -1125,6 +1126,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Walk in closet lights",
         supported_features: 41,
+        supported_color_modes: ["brightness", "color_temp"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:wall-sconce",
       },
@@ -1136,6 +1138,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         brightness: 254,
         friendly_name: "Outdoor lights",
         supported_features: 41,
+        supported_color_modes: ["brightness"],
+        color_mode: "brightness",
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:wall-sconce",
       },
@@ -1148,6 +1152,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 128,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         friendly_name: "Downstairs lights",
         supported_features: 63,
@@ -1307,6 +1313,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         min_mireds: 153,
         max_mireds: 500,
+        supported_color_modes: ["brightness", "color_temp"],
         is_deconz_group: false,
         friendly_name: "Bedside Lamp",
         supported_features: 63,
@@ -1320,6 +1327,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         min_mireds: 153,
         max_mireds: 500,
+        supported_color_modes: ["brightness", "color_temp"],
         is_deconz_group: false,
         friendly_name: "Floorlamp Reading Light",
         supported_features: 43,
@@ -1335,6 +1343,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 128,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         is_deconz_group: false,
         friendly_name: "Hallway window light",
@@ -1349,6 +1359,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         brightness: 77,
         is_deconz_group: false,
+        supported_color_modes: ["brightness"],
         friendly_name: "Isa Ceiling Light",
         supported_features: 41,
         custom_ui_state_card: "state-card-custom-ui",
@@ -1363,6 +1374,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 150,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         is_deconz_group: false,
         friendly_name: "Floorlamp",
@@ -1377,6 +1390,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Bedroom Ceiling Light",
         supported_features: 41,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1387,6 +1401,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Nightlight",
         supported_features: 17,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:lamp",
       },
@@ -1753,6 +1768,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 2.2,
         friendly_name: "Upstairs Hallway Light",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1768,6 +1784,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 0,
         friendly_name: "Dining Room Light",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1783,6 +1800,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 0,
         friendly_name: "Living room Spotlights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },
@@ -1799,6 +1817,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 2.5,
         friendly_name: "Passage Lights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },
@@ -1843,6 +1862,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 37.4,
         friendly_name: "Kitchen Lights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },

demo/src/configs/teachingbirds/lovelace.ts

@@ -215,6 +215,7 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
           card: {
             type: "glance",
             show_state: false,
+            columns: 4,
           },
           state_filter: ["on"],
         },
@@ -439,57 +440,43 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
           type: "horizontal-stack",
         },
         {
+          type: "grid",
+          columns: 2,
           cards: [
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_bedroom",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "S's room",
-                  entity: "sensor.temperature_stefan",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_bedroom",
             },
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_passage",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "Bathroom",
-                  entity: "sensor.temperature_downstairs_bathroom",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              name: "S's room",
+              entity: "sensor.temperature_stefan",
             },
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_storage",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "Refrigerator",
-                  entity: "sensor.refrigerator",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_passage",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              name: "Bathroom",
+              entity: "sensor.temperature_downstairs_bathroom",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_storage",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              name: "Refrigerator",
+              entity: "sensor.refrigerator",
             },
           ],
-          type: "vertical-stack",
         },
         {
           entities: [
@@ -808,67 +795,6 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
           ],
           type: "vertical-stack",
         },
-        // {
-        //   cards: [
-        //     {
-        //       entities: [
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Bedside",
-        //           entity: "light.bedside_lamp",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Bedroom",
-        //           entity: "light.bedroom_ceiling_light",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Isa",
-        //           entity: "light.isa_ceiling_light",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Upstairs hallway",
-        //           entity: "light.upstairs_hallway_ceiling_light_level",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Nightlight",
-        //           entity: "light.gateway_light_34ce008bfc4b",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: true,
-        //           type: "custom:slider-entity-row",
-        //           name: "Walk in closet",
-        //           entity: "light.walk_in_closet_lights",
-        //         },
-        //         {
-        //           hide_when_off: true,
-        //           toggle: false,
-        //           type: "custom:slider-entity-row",
-        //           name: "Stefan",
-        //           entity: "light.stefan_lightstrip",
-        //         },
-        //       ],
-        //       show_header_toggle: false,
-        //       type: "entities",
-        //       title: "Upstairs",
-        //     },
-        //   ],
-        //   type: "vertical-stack",
-        // },
       ],
       path: "lights",
       title: "Lights",
@@ -918,10 +844,6 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
                   name: "Dafang",
                   icon: "mdi:webcam",
                 },
-                {
-                  name: "IR Hallway",
-                  entity: "sensor.system_ir_blaster",
-                },
                 {
                   name: "IR Bedroom",
                   entity: "sensor.system_ir_blaster_bedroom",
@@ -940,7 +862,7 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
                 "sensor.system_ring_chime",
               ],
               type: "glance",
-              columns: 5,
+              columns: 4,
               show_state: false,
             },
             {

demo/src/custom-cards/card-modder.js

@@ -1,5 +1,5 @@
 /* eslint-disable */
-import { LitElement } from "lit-element";
+import { LitElement } from "lit";
 import "./card-tools";
 
 class CardModder extends LitElement {

demo/src/custom-cards/card-tools.js

@@ -1,5 +1,5 @@
 /* eslint-disable */
-import { html, LitElement } from "lit-element";
+import { html, LitElement } from "lit";
 
 if (!window.cardTools) {
   const version = 0.2;

demo/src/custom-cards/cast-demo-row.ts

@@ -1,12 +1,5 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CastManager } from "../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../src/cast/receiver_messages";
 import "../../../src/components/ha-icon";
@@ -20,7 +13,7 @@ import { HomeAssistant } from "../../../src/types";
 class CastDemoRow extends LitElement implements LovelaceRow {
   public hass!: HomeAssistant;
 
-  @internalProperty() private _castManager?: CastManager | null;
+  @state() private _castManager?: CastManager | null;
 
   public setConfig(_config: CastConfig): void {
     // No config possible.
@@ -73,7 +66,7 @@ class CastDemoRow extends LitElement implements LovelaceRow {
     this.style.display = this._castManager ? "" : "none";
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: flex;

demo/src/custom-cards/ha-demo-card.ts

@@ -1,14 +1,7 @@
 import "@material/mwc-button";
-import {
-  css,
-  CSSResult,
-  html,
-  LitElement,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
-import { until } from "lit-html/directives/until";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { property, state } from "lit/decorators";
+import { until } from "lit/directives/until";
 import "../../../src/components/ha-card";
 import "../../../src/components/ha-circular-progress";
 import { LovelaceCardConfig } from "../../../src/data/lovelace";
@@ -26,7 +19,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
 
   @property({ attribute: false }) public hass!: MockHomeAssistant;
 
-  @internalProperty() private _switching?: boolean;
+  @state() private _switching = false;
 
   private _hidden = localStorage.hide_demo_card;
 
@@ -34,12 +27,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
     return this._hidden ? 0 : 2;
   }
 
-  public setConfig(
-    // @ts-ignore
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    config: LovelaceCardConfig
-    // eslint-disable-next-line @typescript-eslint/no-empty-function
-  ) {}
+  public setConfig(_config: LovelaceCardConfig) {}
 
   protected render(): TemplateResult {
     if (this._hidden) {
@@ -56,7 +44,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
                     (conf) => html`
                       ${conf.name}
                       <small>
-                        <a target="_blank" href="${conf.authorUrl}">
+                        <a target="_blank" href=${conf.authorUrl}>
                           ${this.hass.localize(
                             "ui.panel.page-demo.cards.demo.demo_by",
                             "name",
@@ -106,14 +94,14 @@ export class HADemoCard extends LitElement implements LovelaceCard {
     this._switching = true;
     try {
       await setDemoConfig(this.hass, this.lovelace!, index);
-    } catch (err) {
+    } catch (err: any) {
       alert("Failed to switch config :-(");
     } finally {
       this._switching = false;
     }
   }
 
-  static get styles(): CSSResult[] {
+  static get styles(): CSSResultGroup {
     return [
       css`
         a {

demo/src/entrypoint.ts

@@ -1,8 +1,6 @@
-import "../../src/resources/safari-14-attachshadow-patch";
-import "@polymer/polymer/lib/elements/dom-if";
-import "@polymer/polymer/lib/elements/dom-repeat";
 import "../../src/resources/ha-style";
 import "../../src/resources/roboto";
+import "../../src/resources/safari-14-attachshadow-patch";
 import "./ha-demo";
 
 /* polyfill for paper-dropdown */

demo/src/ha-demo.ts

@@ -1,3 +1,4 @@
+// Compat needs to be first import
 import "../../src/resources/compatibility";
 import { isNavigationClick } from "../../src/common/dom/is-navigation-click";
 import { navigate } from "../../src/common/navigate";
@@ -19,11 +20,14 @@ import { mockShoppingList } from "./stubs/shopping_list";
 import { mockSystemLog } from "./stubs/system_log";
 import { mockTemplate } from "./stubs/template";
 import { mockTranslations } from "./stubs/translations";
+import { mockEnergy } from "./stubs/energy";
+import { mockConfig } from "./stubs/config";
+import { energyEntities } from "./stubs/entities";
 
 class HaDemo extends HomeAssistantAppEl {
-  protected async _initialize() {
+  protected async _initializeHass() {
     const initial: Partial<MockHomeAssistant> = {
-      panelUrl: (this as any).panelUrl,
+      panelUrl: (this as any)._panelUrl,
       // Override updateHass so that the correct hass lifecycle methods are called
       updateHass: (hassUpdate: Partial<HomeAssistant>) =>
         this._updateHass(hassUpdate),
@@ -46,8 +50,12 @@ class HaDemo extends HomeAssistantAppEl {
     mockEvents(hass);
     mockMediaPlayer(hass);
     mockFrontend(hass);
+    mockEnergy(hass);
+    mockConfig(hass);
     mockPersistentNotification(hass);
 
+    hass.addEntities(energyEntities());
+
     // Once config is loaded AND localize, set entities and apply theme.
     Promise.all([selectedDemoConfig, localizePromise]).then(
       ([conf, localize]) => {
@@ -69,7 +77,7 @@ class HaDemo extends HomeAssistantAppEl {
         }
 
         e.preventDefault();
-        navigate(this, href);
+        navigate(href);
       },
       { capture: true }
     );

demo/src/stubs/config.ts

@@ -0,0 +1,41 @@
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockConfig = (hass: MockHomeAssistant) => {
+  hass.mockAPI("config/config_entries/entry", () => [
+    {
+      entry_id: "co2signal",
+      domain: "co2signal",
+      title: "CO2 Signal",
+      source: "user",
+      state: "loaded",
+      supports_options: false,
+      supports_unload: true,
+      pref_disable_new_entities: false,
+      pref_disable_polling: false,
+      disabled_by: null,
+      reason: null,
+    },
+  ]);
+  hass.mockWS("config/entity_registry/list", () => [
+    {
+      config_entry_id: "co2signal",
+      device_id: "co2signal",
+      area_id: null,
+      disabled_by: null,
+      entity_id: "sensor.co2_intensity",
+      name: null,
+      icon: null,
+      platform: "co2signal",
+    },
+    {
+      config_entry_id: "co2signal",
+      device_id: "co2signal",
+      area_id: null,
+      disabled_by: null,
+      entity_id: "sensor.grid_fossil_fuel_percentage",
+      name: null,
+      icon: null,
+      platform: "co2signal",
+    },
+  ]);
+};

demo/src/stubs/energy.ts

@@ -0,0 +1,134 @@
+import { format, startOfToday, startOfTomorrow } from "date-fns";
+import { EnergySolarForecasts } from "../../../src/data/energy";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockEnergy = (hass: MockHomeAssistant) => {
+  hass.mockWS("energy/get_prefs", () => ({
+    energy_sources: [
+      {
+        type: "grid",
+        flow_from: [
+          {
+            stat_energy_from: "sensor.energy_consumption_tarif_1",
+            stat_cost: "sensor.energy_consumption_tarif_1_cost",
+            entity_energy_from: "sensor.energy_consumption_tarif_1",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+          {
+            stat_energy_from: "sensor.energy_consumption_tarif_2",
+            stat_cost: "sensor.energy_consumption_tarif_2_cost",
+            entity_energy_from: "sensor.energy_consumption_tarif_2",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+        ],
+        flow_to: [
+          {
+            stat_energy_to: "sensor.energy_production_tarif_1",
+            stat_compensation: "sensor.energy_production_tarif_1_compensation",
+            entity_energy_to: "sensor.energy_production_tarif_1",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+          {
+            stat_energy_to: "sensor.energy_production_tarif_2",
+            stat_compensation: "sensor.energy_production_tarif_2_compensation",
+            entity_energy_to: "sensor.energy_production_tarif_2",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+        ],
+        cost_adjustment_day: 0,
+      },
+      {
+        type: "solar",
+        stat_energy_from: "sensor.solar_production",
+        config_entry_solar_forecast: ["solar_forecast"],
+      },
+      /* {
+        type: "battery",
+        stat_energy_from: "sensor.battery_output",
+        stat_energy_to: "sensor.battery_input",
+      }, */
+      {
+        type: "gas",
+        stat_energy_from: "sensor.energy_gas",
+        stat_cost: "sensor.energy_gas_cost",
+        entity_energy_from: "sensor.energy_gas",
+        entity_energy_price: null,
+        number_energy_price: null,
+      },
+    ],
+    device_consumption: [
+      {
+        stat_consumption: "sensor.energy_car",
+      },
+      {
+        stat_consumption: "sensor.energy_ac",
+      },
+      {
+        stat_consumption: "sensor.energy_washing_machine",
+      },
+      {
+        stat_consumption: "sensor.energy_dryer",
+      },
+      {
+        stat_consumption: "sensor.energy_heat_pump",
+      },
+      {
+        stat_consumption: "sensor.energy_boiler",
+      },
+    ],
+  }));
+  hass.mockWS("energy/info", () => ({ cost_sensors: [] }));
+  const todayString = format(startOfToday(), "yyyy-MM-dd");
+  const tomorrowString = format(startOfTomorrow(), "yyyy-MM-dd");
+  hass.mockWS(
+    "energy/solar_forecast",
+    (): EnergySolarForecasts => ({
+      solar_forecast: {
+        wh_hours: {
+          [`${todayString}T06:00:00`]: 0,
+          [`${todayString}T06:23:00`]: 6,
+          [`${todayString}T06:45:00`]: 39,
+          [`${todayString}T07:00:00`]: 28,
+          [`${todayString}T08:00:00`]: 208,
+          [`${todayString}T09:00:00`]: 352,
+          [`${todayString}T10:00:00`]: 544,
+          [`${todayString}T11:00:00`]: 748,
+          [`${todayString}T12:00:00`]: 1259,
+          [`${todayString}T13:00:00`]: 1361,
+          [`${todayString}T14:00:00`]: 1373,
+          [`${todayString}T15:00:00`]: 1370,
+          [`${todayString}T16:00:00`]: 1186,
+          [`${todayString}T17:00:00`]: 937,
+          [`${todayString}T18:00:00`]: 652,
+          [`${todayString}T19:00:00`]: 370,
+          [`${todayString}T20:00:00`]: 155,
+          [`${todayString}T21:48:00`]: 24,
+          [`${todayString}T22:36:00`]: 0,
+          [`${tomorrowString}T06:01:00`]: 0,
+          [`${tomorrowString}T06:23:00`]: 9,
+          [`${tomorrowString}T06:45:00`]: 47,
+          [`${tomorrowString}T07:00:00`]: 48,
+          [`${tomorrowString}T08:00:00`]: 473,
+          [`${tomorrowString}T09:00:00`]: 827,
+          [`${tomorrowString}T10:00:00`]: 1153,
+          [`${tomorrowString}T11:00:00`]: 1413,
+          [`${tomorrowString}T12:00:00`]: 1590,
+          [`${tomorrowString}T13:00:00`]: 1652,
+          [`${tomorrowString}T14:00:00`]: 1612,
+          [`${tomorrowString}T15:00:00`]: 1438,
+          [`${tomorrowString}T16:00:00`]: 1149,
+          [`${tomorrowString}T17:00:00`]: 830,
+          [`${tomorrowString}T18:00:00`]: 542,
+          [`${tomorrowString}T19:00:00`]: 311,
+          [`${tomorrowString}T20:00:00`]: 140,
+          [`${tomorrowString}T21:47:00`]: 22,
+          [`${tomorrowString}T22:34:00`]: 0,
+        },
+      },
+    })
+  );
+};

demo/src/stubs/entities.ts

@@ -0,0 +1,178 @@
+import { convertEntities } from "../../../src/fake_data/entity";
+
+export const energyEntities = () =>
+  convertEntities({
+    "sensor.grid_fossil_fuel_percentage": {
+      entity_id: "sensor.grid_fossil_fuel_percentage",
+      state: "88.6",
+      attributes: {
+        unit_of_measurement: "%",
+      },
+    },
+    "sensor.solar_production": {
+      entity_id: "sensor.solar_production",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Solar",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.battery_input": {
+      entity_id: "sensor.battery_input",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Battery Input",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.battery_output": {
+      entity_id: "sensor.battery_output",
+      state: "3",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Battery Output",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_1": {
+      entity_id: "sensor.energy_consumption_tarif_1	",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Grid consumption low tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_2": {
+      entity_id: "sensor.energy_consumption_tarif_2",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Grid consumption high tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_production_tarif_1": {
+      entity_id: "sensor.energy_production_tarif_1",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Returned to grid low tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_production_tarif_2": {
+      entity_id: "sensor.energy_production_tarif_2",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Returned to grid high tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_1_cost": {
+      entity_id: "sensor.energy_consumption_tarif_1_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_consumption_tarif_2_cost": {
+      entity_id: "sensor.energy_consumption_tarif_2_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_production_tarif_1_compensation": {
+      entity_id: "sensor.energy_production_tarif_1_compensation",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_production_tarif_2_compensation": {
+      entity_id: "sensor.energy_production_tarif_2_compensation",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_gas_cost": {
+      entity_id: "sensor.energy_gas_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_gas": {
+      entity_id: "sensor.energy_gas",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Gas",
+        unit_of_measurement: "m³",
+      },
+    },
+    "sensor.energy_car": {
+      entity_id: "sensor.energy_car",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Electric car",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_ac": {
+      entity_id: "sensor.energy_ac",
+      state: "3",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Air conditioning",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_washing_machine": {
+      entity_id: "sensor.energy_washing_machine",
+      state: "6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Washing machine",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_dryer": {
+      entity_id: "sensor.energy_dryer",
+      state: "5.5",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Dryer",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_heat_pump": {
+      entity_id: "sensor.energy_heat_pump",
+      state: "6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Heat pump",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_boiler": {
+      entity_id: "sensor.energy_boiler",
+      state: "7",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Boiler",
+        unit_of_measurement: "kWh",
+      },
+    },
+  });

demo/src/stubs/history.ts

@@ -1,4 +1,6 @@
+import { addHours, differenceInHours, endOfDay } from "date-fns";
 import { HassEntity } from "home-assistant-js-websocket";
+import { StatisticValue } from "../../../src/data/history";
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 interface HistoryQueryParams {
@@ -64,17 +66,219 @@ const generateHistory = (state, deltas) => {
 
 const incrementalUnits = ["clients", "queries", "ads"];
 
+const generateMeanStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  initValue: number,
+  maxDiff: number
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let lastVal = initValue;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const delta = Math.random() * maxDiff;
+    const mean = lastVal + delta;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      mean,
+      min: mean - Math.random() * maxDiff,
+      max: mean + Math.random() * maxDiff,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: mean,
+      sum: null,
+    });
+    lastVal = mean;
+    currentDate = addHours(currentDate, 1);
+  }
+  return statistics;
+};
+
+const generateSumStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  initValue: number,
+  maxDiff: number
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let sum = initValue;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const add = Math.random() * maxDiff;
+    sum += add;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      mean: null,
+      min: null,
+      max: null,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: initValue + sum,
+      sum,
+    });
+    currentDate = addHours(currentDate, 1);
+  }
+  return statistics;
+};
+
+const generateCurvedStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  initValue: number,
+  maxDiff: number,
+  metered: boolean
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let sum = initValue;
+  const hours = differenceInHours(end, start) - 1;
+  let i = 0;
+  let half = false;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const add = Math.random() * maxDiff;
+    sum += i * add;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      mean: null,
+      min: null,
+      max: null,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: initValue + sum,
+      sum: metered ? sum : null,
+    });
+    currentDate = addHours(currentDate, 1);
+    if (!half && i > hours / 2) {
+      half = true;
+    }
+    i += half ? -1 : 1;
+  }
+  return statistics;
+};
+
+const statisticsFunctions: Record<
+  string,
+  (id: string, start: Date, end: Date) => StatisticValue[]
+> = {
+  "sensor.energy_consumption_tarif_1": (id: string, start: Date, end: Date) => {
+    const morningEnd = new Date(start.getTime() + 10 * 60 * 60 * 1000);
+    const morningLow = generateSumStatistics(id, start, morningEnd, 0, 0.7);
+    const eveningStart = new Date(start.getTime() + 20 * 60 * 60 * 1000);
+    const morningFinalVal = morningLow.length
+      ? morningLow[morningLow.length - 1].sum!
+      : 0;
+    const empty = generateSumStatistics(
+      id,
+      morningEnd,
+      eveningStart,
+      morningFinalVal,
+      0
+    );
+    const eveningLow = generateSumStatistics(
+      id,
+      eveningStart,
+      end,
+      morningFinalVal,
+      0.7
+    );
+    return [...morningLow, ...empty, ...eveningLow];
+  },
+  "sensor.energy_consumption_tarif_2": (id: string, start: Date, end: Date) => {
+    const morningEnd = new Date(start.getTime() + 9 * 60 * 60 * 1000);
+    const eveningStart = new Date(start.getTime() + 20 * 60 * 60 * 1000);
+    const highTarif = generateSumStatistics(
+      id,
+      morningEnd,
+      eveningStart,
+      0,
+      0.3
+    );
+    const highTarifFinalVal = highTarif.length
+      ? highTarif[highTarif.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(id, start, morningEnd, 0, 0);
+    const evening = generateSumStatistics(
+      id,
+      eveningStart,
+      end,
+      highTarifFinalVal,
+      0
+    );
+    return [...morning, ...highTarif, ...evening];
+  },
+  "sensor.energy_production_tarif_1": (id, start, end) =>
+    generateSumStatistics(id, start, end, 0, 0),
+  "sensor.energy_production_tarif_1_compensation": (id, start, end) =>
+    generateSumStatistics(id, start, end, 0, 0),
+  "sensor.energy_production_tarif_2": (id, start, end) => {
+    const productionStart = new Date(start.getTime() + 9 * 60 * 60 * 1000);
+    const productionEnd = new Date(start.getTime() + 21 * 60 * 60 * 1000);
+    const dayEnd = new Date(endOfDay(productionEnd));
+    const production = generateCurvedStatistics(
+      id,
+      productionStart,
+      productionEnd,
+      0,
+      0.15,
+      true
+    );
+    const productionFinalVal = production.length
+      ? production[production.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(id, start, productionStart, 0, 0);
+    const evening = generateSumStatistics(
+      id,
+      productionEnd,
+      dayEnd,
+      productionFinalVal,
+      0
+    );
+    const rest = generateSumStatistics(id, dayEnd, end, productionFinalVal, 1);
+    return [...morning, ...production, ...evening, ...rest];
+  },
+  "sensor.solar_production": (id, start, end) => {
+    const productionStart = new Date(start.getTime() + 7 * 60 * 60 * 1000);
+    const productionEnd = new Date(start.getTime() + 23 * 60 * 60 * 1000);
+    const dayEnd = new Date(endOfDay(productionEnd));
+    const production = generateCurvedStatistics(
+      id,
+      productionStart,
+      productionEnd,
+      0,
+      0.3,
+      true
+    );
+    const productionFinalVal = production.length
+      ? production[production.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(id, start, productionStart, 0, 0);
+    const evening = generateSumStatistics(
+      id,
+      productionEnd,
+      dayEnd,
+      productionFinalVal,
+      0
+    );
+    const rest = generateSumStatistics(id, dayEnd, end, productionFinalVal, 2);
+    return [...morning, ...production, ...evening, ...rest];
+  },
+  "sensor.grid_fossil_fuel_percentage": (id, start, end) =>
+    generateMeanStatistics(id, start, end, 35, 1.3),
+};
+
 export const mockHistory = (mockHass: MockHomeAssistant) => {
   mockHass.mockAPI(
     new RegExp("history/period/.+"),
-    (
-      hass,
-      // @ts-ignore
-      method,
-      path,
-      // @ts-ignore
-      parameters
-    ) => {
+    (hass, _method, path, _parameters) => {
       const params = parseQuery<HistoryQueryParams>(path.split("?")[1]);
       const entities = params.filter_entity_id.split(",");
 
@@ -95,7 +299,7 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
         const numberState = Number(state.state);
 
         if (isNaN(numberState)) {
-          // eslint-disable-next-line
+          // eslint-disable-next-line no-console
           console.log(
             "Ignoring state with unparsable state but with a unit",
             entityId,
@@ -140,4 +344,40 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
       return results;
     }
   );
+  mockHass.mockWS("history/list_statistic_ids", () => []);
+  mockHass.mockWS(
+    "history/statistics_during_period",
+    ({ statistic_ids, start_time, end_time }, hass) => {
+      const start = new Date(start_time);
+      const end = end_time ? new Date(end_time) : new Date();
+
+      const statistics: Record<string, StatisticValue[]> = {};
+
+      statistic_ids.forEach((id: string) => {
+        if (id in statisticsFunctions) {
+          statistics[id] = statisticsFunctions[id](id, start, end);
+        } else {
+          const entityState = hass.states[id];
+          const state = entityState ? Number(entityState.state) : 1;
+          statistics[id] =
+            entityState && "last_reset" in entityState.attributes
+              ? generateSumStatistics(
+                  id,
+                  start,
+                  end,
+                  state,
+                  state * (state > 80 ? 0.01 : 0.05)
+                )
+              : generateMeanStatistics(
+                  id,
+                  start,
+                  end,
+                  state,
+                  state * (state > 80 ? 0.05 : 0.1)
+                );
+        }
+      });
+      return statistics;
+    }
+  );
 };

demo/src/stubs/lovelace.ts

@@ -10,10 +10,9 @@ export const mockLovelace = (
   localizePromise: Promise<LocalizeFunc>
 ) => {
   hass.mockWS("lovelace/config", () =>
-    Promise.all([
-      selectedDemoConfig,
-      localizePromise,
-    ]).then(([config, localize]) => config.lovelace(localize))
+    Promise.all([selectedDemoConfig, localizePromise]).then(
+      ([config, localize]) => config.lovelace(localize)
+    )
   );
 
   hass.mockWS("lovelace/config/save", () => Promise.resolve());
@@ -24,9 +23,9 @@ customElements.whenDefined("hui-view").then(() => {
   // eslint-disable-next-line
   const HUIView = customElements.get("hui-view");
   // Patch HUI-VIEW to make the lovelace object available to the demo card
-  const oldCreateCard = HUIView.prototype.createCardElement;
+  const oldCreateCard = HUIView!.prototype.createCardElement;
 
-  HUIView.prototype.createCardElement = function (config) {
+  HUIView!.prototype.createCardElement = function (config) {
     const el = oldCreateCard.call(this, config);
     if (el.tagName === "HA-DEMO-CARD") {
       (el as HADemoCard).lovelace = this.lovelace;

demo/src/stubs/template.ts

@@ -6,7 +6,7 @@ export const mockTemplate = (hass: MockHomeAssistant) => {
       body: { message: "Template dev tool does not work in the demo." },
     })
   );
-  hass.mockWS("render_template", (msg, onChange) => {
+  hass.mockWS("render_template", (msg, _hass, onChange) => {
     onChange!({
       result: msg.template,
       listeners: { all: false, domains: [], entities: [], time: false },

demo/src/stubs/translations.ts

@@ -3,8 +3,6 @@ import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 export const mockTranslations = (hass: MockHomeAssistant) => {
   hass.mockWS(
     "frontend/get_translations",
-    (/* msg: {language: string, category: string} */) => {
-      return { resources: {} };
-    }
+    (/* msg: {language: string, category: string} */) => ({ resources: {} })
   );
 };

gallery/src/components/demo-card.js

@@ -1,7 +1,7 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 /* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-import { safeLoad } from "js-yaml";
+import { load } from "js-yaml";
 import { createCardElement } from "../../../src/panels/lovelace/create-element/create-card-element";
 
 class DemoCard extends PolymerElement {
@@ -15,6 +15,10 @@ class DemoCard extends PolymerElement {
           margin: 0 0 20px;
           color: var(--primary-color);
         }
+        h2 small {
+          font-size: 0.5em;
+          color: var(--primary-text-color);
+        }
         #card {
           max-width: 400px;
           width: 100vw;
@@ -34,7 +38,12 @@ class DemoCard extends PolymerElement {
           }
         }
       </style>
-      <h2>[[config.heading]]</h2>
+      <h2>
+        [[config.heading]]
+        <template is="dom-if" if="[[_size]]">
+          <small>(size [[_size]])</small>
+        </template>
+      </h2>
       <div class="root">
         <div id="card"></div>
         <template is="dom-if" if="[[showConfig]]">
@@ -55,6 +64,9 @@ class DemoCard extends PolymerElement {
         observer: "_configChanged",
       },
       showConfig: Boolean,
+      _size: {
+        type: Number,
+      },
     };
   }
 
@@ -68,8 +80,19 @@ class DemoCard extends PolymerElement {
       card.removeChild(card.lastChild);
     }
 
-    const el = this._createCardElement(safeLoad(config.config)[0]);
+    const el = this._createCardElement(load(config.config)[0]);
     card.appendChild(el);
+    this._getSize(el);
+  }
+
+  async _getSize(el) {
+    await customElements.whenDefined(el.localName);
+
+    if (!("getCardSize" in el)) {
+      this._size = undefined;
+      return;
+    }
+    this._size = await el.getCardSize();
   }
 
   _createCardElement(cardConfig) {

gallery/src/components/demo-cards.js

@@ -2,10 +2,10 @@ import "@polymer/app-layout/app-toolbar/app-toolbar";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 /* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-import "../../../src/components/ha-switch";
-import "../../../src/components/ha-formfield";
-import "./demo-card";
 import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
+import "../../../src/components/ha-formfield";
+import "../../../src/components/ha-switch";
+import "./demo-card";
 
 class DemoCards extends PolymerElement {
   static get template() {

gallery/src/components/demo-more-info.js

@@ -2,37 +2,36 @@ import { html } from "@polymer/polymer/lib/utils/html-tag";
 /* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 import "../../../src/components/ha-card";
-import "../../../src/state-summary/state-card-content";
 import "../../../src/dialogs/more-info/more-info-content";
+import "../../../src/state-summary/state-card-content";
 
 class DemoMoreInfo extends PolymerElement {
   static get template() {
     return html`
       <style>
-        :host {
+        .root {
           display: flex;
-          align-items: start;
         }
-
+        #card {
+          max-width: 400px;
+          width: 100vw;
+        }
         ha-card {
-          width: 333px;
+          width: 352px;
           padding: 20px 24px;
         }
-
         state-card-content {
           display: block;
           margin-bottom: 16px;
         }
-
         pre {
           width: 400px;
           margin: 0 16px;
           overflow: auto;
           color: var(--primary-text-color);
         }
-
         @media only screen and (max-width: 800px) {
-          :host {
+          .root {
             flex-direction: column;
           }
           pre {
@@ -40,21 +39,25 @@ class DemoMoreInfo extends PolymerElement {
           }
         }
       </style>
-      <ha-card>
-        <state-card-content
-          state-obj="[[_stateObj]]"
-          hass="[[hass]]"
-          in-dialog
-        ></state-card-content>
+      <div class="root">
+        <div id="card">
+          <ha-card>
+            <state-card-content
+              state-obj="[[_stateObj]]"
+              hass="[[hass]]"
+              in-dialog
+            ></state-card-content>
 
-        <more-info-content
-          hass="[[hass]]"
-          state-obj="[[_stateObj]]"
-        ></more-info-content>
-      </ha-card>
-      <template is="dom-if" if="[[showConfig]]">
-        <pre>[[_jsonEntity(_stateObj)]]</pre>
-      </template>
+            <more-info-content
+              hass="[[hass]]"
+              state-obj="[[_stateObj]]"
+            ></more-info-content>
+          </ha-card>
+        </div>
+        <template is="dom-if" if="[[showConfig]]">
+          <pre>[[_jsonEntity(_stateObj)]]</pre>
+        </template>
+      </div>
     `;
   }
 

gallery/src/components/demo-more-infos.js

@@ -2,6 +2,8 @@ import "@polymer/app-layout/app-toolbar/app-toolbar";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 /* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
+import "../../../src/components/ha-formfield";
 import "../../../src/components/ha-switch";
 import "./demo-more-info";
 
@@ -9,6 +11,10 @@ class DemoMoreInfos extends PolymerElement {
   static get template() {
     return html`
       <style>
+        #container {
+          min-height: calc(100vh - 128px);
+          background: var(--primary-background-color);
+        }
         .cards {
           display: flex;
           flex-wrap: wrap;
@@ -23,20 +29,31 @@ class DemoMoreInfos extends PolymerElement {
         .filters {
           margin-left: 60px;
         }
+        ha-formfield {
+          margin-right: 16px;
+        }
       </style>
       <app-toolbar>
         <div class="filters">
-          <ha-switch checked="{{_showConfig}}">Show entity</ha-switch>
+          <ha-formfield label="Show entities">
+            <ha-switch checked="[[_showConfig]]" on-change="_showConfigToggled">
+            </ha-switch>
+          </ha-formfield>
+          <ha-formfield label="Dark theme">
+            <ha-switch on-change="_darkThemeToggled"> </ha-switch>
+          </ha-formfield>
         </div>
       </app-toolbar>
-      <div class="cards">
-        <template is="dom-repeat" items="[[entities]]">
-          <demo-more-info
-            entity-id="[[item]]"
-            show-config="[[_showConfig]]"
-            hass="[[hass]]"
-          ></demo-more-info>
-        </template>
+      <div id="container">
+        <div class="cards">
+          <template is="dom-repeat" items="[[entities]]">
+            <demo-more-info
+              entity-id="[[item]]"
+              show-config="[[_showConfig]]"
+              hass="[[hass]]"
+            ></demo-more-info>
+          </template>
+        </div>
       </div>
     `;
   }
@@ -51,6 +68,16 @@ class DemoMoreInfos extends PolymerElement {
       },
     };
   }
+
+  _showConfigToggled(ev) {
+    this._showConfig = ev.target.checked;
+  }
+
+  _darkThemeToggled(ev) {
+    applyThemesOnElement(this.$.container, { themes: {} }, "default", {
+      dark: ev.target.checked,
+    });
+  }
 }
 
 customElements.define("demo-more-infos", DemoMoreInfos);

gallery/src/data/plants.ts

@@ -0,0 +1,72 @@
+import { getEntity } from "../../../src/fake_data/entity";
+
+export const createPlantEntities = () => [
+  getEntity("plant", "lemon_tree", "ok", {
+    problem: "none",
+    sensors: {
+      moisture: "sensor.lemon_tree_moisture",
+      battery: "sensor.lemon_tree_battery",
+      temperature: "sensor.lemon_tree_temperature",
+      conductivity: "sensor.lemon_tree_conductivity",
+      brightness: "sensor.lemon_tree_brightness",
+    },
+    unit_of_measurement_dict: {
+      temperature: "°C",
+      moisture: "%",
+      brightness: "lx",
+      battery: "%",
+      conductivity: "μS/cm",
+    },
+    moisture: 54,
+    battery: 95,
+    temperature: 15.6,
+    conductivity: 1,
+    brightness: 12,
+    max_brightness: 20,
+    friendly_name: "Lemon Tree",
+  }),
+  getEntity("plant", "apple_tree", "ok", {
+    problem: "brightness",
+    sensors: {
+      moisture: "sensor.apple_tree_moisture",
+      battery: "sensor.apple_tree_battery",
+      temperature: "sensor.apple_tree_temperature",
+      conductivity: "sensor.apple_tree_conductivity",
+      brightness: "sensor.apple_tree_brightness",
+    },
+    unit_of_measurement_dict: {
+      temperature: "°C",
+      moisture: "%",
+      brightness: "lx",
+      battery: "%",
+      conductivity: "μS/cm",
+    },
+    moisture: 54,
+    battery: 2,
+    temperature: 15.6,
+    conductivity: 1,
+    brightness: 25,
+    max_brightness: 20,
+    friendly_name: "Apple Tree",
+  }),
+  getEntity("plant", "sunflowers", "ok", {
+    problem: "moisture, temperature, conductivity",
+    sensors: {
+      moisture: "sensor.sunflowers_moisture",
+      temperature: "sensor.sunflowers_temperature",
+      conductivity: "sensor.sunflowers_conductivity",
+      brightness: "sensor.sunflowers_brightness",
+    },
+    unit_of_measurement_dict: {
+      temperature: "°C",
+      moisture: "%",
+      brightness: "lx",
+      conductivity: "μS/cm",
+    },
+    moisture: 54,
+    temperature: 15.6,
+    conductivity: 1,
+    brightness: 25,
+    entity_picture: "/images/sunflowers.jpg",
+  }),
+];

gallery/src/data/traces/basic_trace.ts

@@ -0,0 +1,349 @@
+import { DemoTrace } from "./types";
+
+export const basicTrace: DemoTrace = {
+  trace: {
+    last_step: "action/2",
+    run_id: "0",
+    state: "stopped",
+    timestamp: {
+      start: "2021-03-25T04:36:51.223693+00:00",
+      finish: "2021-03-25T04:36:51.266132+00:00",
+    },
+    trigger: "state of input_boolean.toggle_1",
+    domain: "automation",
+    item_id: "1615419646544",
+    trace: {
+      "trigger/0": [
+        {
+          path: "trigger/0",
+          timestamp: "2021-03-25T04:36:51.223693+00:00",
+        },
+      ],
+      "condition/0": [
+        {
+          path: "condition/0",
+          timestamp: "2021-03-25T04:36:51.228243+00:00",
+          changed_variables: {
+            trigger: {
+              platform: "state",
+              entity_id: "input_boolean.toggle_1",
+              from_state: {
+                entity_id: "input_boolean.toggle_1",
+                state: "on",
+                attributes: {
+                  editable: true,
+                  friendly_name: "Toggle 1",
+                },
+                last_changed: "2021-03-24T19:03:59.141440+00:00",
+                last_updated: "2021-03-24T19:03:59.141440+00:00",
+                context: {
+                  id: "5d0918eb379214d07554bdab6a08bcff",
+                  parent_id: null,
+                  user_id: null,
+                },
+              },
+              to_state: {
+                entity_id: "input_boolean.toggle_1",
+                state: "off",
+                attributes: {
+                  editable: true,
+                  friendly_name: "Toggle 1",
+                },
+                last_changed: "2021-03-25T04:36:51.220696+00:00",
+                last_updated: "2021-03-25T04:36:51.220696+00:00",
+                context: {
+                  id: "664d6d261450a9ecea6738e97269a149",
+                  parent_id: null,
+                  user_id: "d1b4e89da01445fa8bc98e39fac477ca",
+                },
+              },
+              for: null,
+              attribute: null,
+              description: "state of input_boolean.toggle_1",
+            },
+          },
+          result: {
+            result: true,
+          },
+        },
+      ],
+      "action/0": [
+        {
+          path: "action/0",
+          timestamp: "2021-03-25T04:36:51.243018+00:00",
+          changed_variables: {
+            trigger: {
+              platform: "state",
+              entity_id: "input_boolean.toggle_1",
+              from_state: {
+                entity_id: "input_boolean.toggle_1",
+                state: "on",
+                attributes: {
+                  editable: true,
+                  friendly_name: "Toggle 1",
+                },
+                last_changed: "2021-03-24T19:03:59.141440+00:00",
+                last_updated: "2021-03-24T19:03:59.141440+00:00",
+                context: {
+                  id: "5d0918eb379214d07554bdab6a08bcff",
+                  parent_id: null,
+                  user_id: null,
+                },
+              },
+              to_state: {
+                entity_id: "input_boolean.toggle_1",
+                state: "off",
+                attributes: {
+                  editable: true,
+                  friendly_name: "Toggle 1",
+                },
+                last_changed: "2021-03-25T04:36:51.220696+00:00",
+                last_updated: "2021-03-25T04:36:51.220696+00:00",
+                context: {
+                  id: "664d6d261450a9ecea6738e97269a149",
+                  parent_id: null,
+                  user_id: "d1b4e89da01445fa8bc98e39fac477ca",
+                },
+              },
+              for: null,
+              attribute: null,
+              description: "state of input_boolean.toggle_1",
+            },
+            context: {
+              id: "6cfcae368e7b3686fad6c59e83ae76c9",
+              parent_id: "664d6d261450a9ecea6738e97269a149",
+              user_id: null,
+            },
+          },
+          result: {
+            params: {
+              domain: "input_boolean",
+              service: "toggle",
+              service_data: {},
+              target: {
+                entity_id: ["input_boolean.toggle_4"],
+              },
+            },
+            running_script: false,
+            limit: 10,
+          },
+        },
+      ],
+      "action/1": [
+        {
+          path: "action/1",
+          timestamp: "2021-03-25T04:36:51.252406+00:00",
+          result: {
+            choice: 0,
+          },
+        },
+      ],
+      "action/1/choose/0": [
+        {
+          path: "action/1/choose/0",
+          timestamp: "2021-03-25T04:36:51.254569+00:00",
+          result: {
+            result: true,
+          },
+        },
+      ],
+      "action/1/choose/0/conditions/0": [
+        {
+          path: "action/1/choose/0/conditions/0",
+          timestamp: "2021-03-25T04:36:51.254697+00:00",
+          result: {
+            result: true,
+          },
+        },
+      ],
+      "action/1/choose/0/sequence/0": [
+        {
+          path: "action/1/choose/0/sequence/0",
+          timestamp: "2021-03-25T04:36:51.257360+00:00",
+          result: {
+            params: {
+              domain: "input_boolean",
+              service: "toggle",
+              service_data: {},
+              target: {
+                entity_id: ["input_boolean.toggle_2"],
+              },
+            },
+            running_script: false,
+            limit: 10,
+          },
+        },
+      ],
+      "action/1/choose/0/sequence/1": [
+        {
+          path: "action/1/choose/0/sequence/1",
+          timestamp: "2021-03-25T04:36:51.260658+00:00",
+          result: {
+            params: {
+              domain: "input_boolean",
+              service: "toggle",
+              service_data: {},
+              target: {
+                entity_id: ["input_boolean.toggle_3"],
+              },
+            },
+            running_script: false,
+            limit: 10,
+          },
+        },
+      ],
+      "action/2": [
+        {
+          path: "action/2",
+          timestamp: "2021-03-25T04:36:51.264159+00:00",
+          result: {
+            params: {
+              domain: "input_boolean",
+              service: "toggle",
+              service_data: {},
+              target: {
+                entity_id: ["input_boolean.toggle_4"],
+              },
+            },
+            running_script: false,
+            limit: 10,
+          },
+        },
+      ],
+    },
+
+    config: {
+      id: "1615419646544",
+      alias: "Ensure Party mode",
+      description: "",
+      trigger: [
+        {
+          platform: "state",
+          entity_id: "input_boolean.toggle_1",
+        },
+      ],
+      condition: [
+        {
+          condition: "template",
+          alias: "Test if Paulus is home",
+          value_template: "{{ true }}",
+        },
+      ],
+      action: [
+        {
+          service: "input_boolean.toggle",
+          target: {
+            entity_id: "input_boolean.toggle_4",
+          },
+        },
+        {
+          choose: [
+            {
+              alias: "If toggle 3 is on",
+              conditions: [
+                {
+                  condition: "template",
+                  value_template:
+                    "{{ is_state('input_boolean.toggle_3', 'on') }}",
+                },
+              ],
+              sequence: [
+                {
+                  service: "input_boolean.toggle",
+                  alias: "Toggle 2 while 3 is on",
+                  target: {
+                    entity_id: "input_boolean.toggle_2",
+                  },
+                },
+                {
+                  service: "input_boolean.toggle",
+                  alias: "Toggle 3",
+                  target: {
+                    entity_id: "input_boolean.toggle_3",
+                  },
+                },
+              ],
+            },
+          ],
+          default: [
+            {
+              service: "input_boolean.toggle",
+              alias: "Toggle 2",
+              target: {
+                entity_id: "input_boolean.toggle_2",
+              },
+            },
+          ],
+        },
+        {
+          service: "input_boolean.toggle",
+          target: {
+            entity_id: "input_boolean.toggle_4",
+          },
+        },
+      ],
+      mode: "single",
+    },
+    context: {
+      id: "6cfcae368e7b3686fad6c59e83ae76c9",
+      parent_id: "664d6d261450a9ecea6738e97269a149",
+      user_id: null,
+    },
+    script_execution: "finished",
+  },
+  logbookEntries: [
+    {
+      name: "Ensure Party mode",
+      message: "has been triggered by state of input_boolean.toggle_1",
+      source: "state of input_boolean.toggle_1",
+      entity_id: "automation.toggle_toggles",
+      context_id: "6cfcae368e7b3686fad6c59e83ae76c9",
+      when: "2021-03-25T04:36:51.240832+00:00",
+      domain: "automation",
+    },
+    {
+      when: "2021-03-25T04:36:51.249828+00:00",
+      name: "Toggle 4",
+      state: "on",
+      entity_id: "input_boolean.toggle_4",
+      context_entity_id: "automation.toggle_toggles",
+      context_entity_id_name: "Ensure Party mode",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Ensure Party mode",
+    },
+    {
+      when: "2021-03-25T04:36:51.258947+00:00",
+      name: "Toggle 2",
+      state: "on",
+      entity_id: "input_boolean.toggle_2",
+      context_entity_id: "automation.toggle_toggles",
+      context_entity_id_name: "Ensure Party mode",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Ensure Party mode",
+    },
+    {
+      when: "2021-03-25T04:36:51.261806+00:00",
+      name: "Toggle 3",
+      state: "off",
+      entity_id: "input_boolean.toggle_3",
+      context_entity_id: "automation.toggle_toggles",
+      context_entity_id_name: "Ensure Party mode",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Ensure Party mode",
+    },
+    {
+      when: "2021-03-25T04:36:51.265246+00:00",
+      name: "Toggle 4",
+      state: "off",
+      entity_id: "input_boolean.toggle_4",
+      context_entity_id: "automation.toggle_toggles",
+      context_entity_id_name: "Ensure Party mode",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Ensure Party mode",
+    },
+  ],
+};

gallery/src/data/traces/mock-demo-trace.ts

@@ -0,0 +1,44 @@
+import { LogbookEntry } from "../../../../src/data/logbook";
+import { AutomationTraceExtended } from "../../../../src/data/trace";
+import { DemoTrace } from "./types";
+
+export const mockDemoTrace = (
+  tracePartial: Partial<AutomationTraceExtended>,
+  logbookEntries?: LogbookEntry[]
+): DemoTrace => ({
+  trace: {
+    last_step: "",
+    run_id: "0",
+    state: "stopped",
+    timestamp: {
+      start: "2021-03-25T04:36:51.223693+00:00",
+      finish: "2021-03-25T04:36:51.266132+00:00",
+    },
+    trigger: "mocked trigger",
+    domain: "automation",
+    item_id: "1615419646544",
+    trace: {
+      "trigger/0": [
+        {
+          path: "trigger/0",
+          changed_variables: {
+            trigger: {
+              description: "mocked trigger",
+            },
+          },
+          timestamp: "2021-03-25T04:36:51.223693+00:00",
+        },
+      ],
+    },
+    config: {
+      trigger: [],
+      action: [],
+    },
+    context: {
+      id: "abcd",
+    },
+    script_execution: "finished",
+    ...tracePartial,
+  },
+  logbookEntries: logbookEntries || [],
+});

gallery/src/data/traces/motion-light-trace.ts

@@ -0,0 +1,214 @@
+import { DemoTrace } from "./types";
+
+export const motionLightTrace: DemoTrace = {
+  trace: {
+    last_step: "action/3",
+    run_id: "1",
+    state: "stopped",
+    timestamp: {
+      start: "2021-03-14T06:07:01.768006+00:00",
+      finish: "2021-03-14T06:07:53.287525+00:00",
+    },
+    trigger: "state of binary_sensor.pauluss_macbook_pro_camera_in_use",
+    domain: "automation",
+    item_id: "1614732497392",
+    trace: {
+      "trigger/0": [
+        {
+          path: "trigger/0",
+          timestamp: "2021-03-25T04:36:51.223693+00:00",
+        },
+      ],
+      "action/0": [
+        {
+          path: "action/0",
+          timestamp: "2021-03-14T06:07:01.771038+00:00",
+          changed_variables: {
+            trigger: {
+              platform: "state",
+              entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+              from_state: {
+                entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+                state: "off",
+                attributes: {
+                  friendly_name: "Paulus’s MacBook Pro Camera In Use",
+                  icon: "mdi:camera-off",
+                },
+                last_changed: "2021-03-14T06:06:29.235325+00:00",
+                last_updated: "2021-03-14T06:06:29.235325+00:00",
+                context: {
+                  id: "ad4864c5ce957c38a07b50378eeb245d",
+                  parent_id: null,
+                  user_id: null,
+                },
+              },
+              to_state: {
+                entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+                state: "on",
+                attributes: {
+                  friendly_name: "Paulus’s MacBook Pro Camera In Use",
+                  icon: "mdi:camera",
+                },
+                last_changed: "2021-03-14T06:07:01.762009+00:00",
+                last_updated: "2021-03-14T06:07:01.762009+00:00",
+                context: {
+                  id: "e22ddfd5f11dc4aad9a52fc10dab613b",
+                  parent_id: null,
+                  user_id: null,
+                },
+              },
+              for: null,
+              attribute: null,
+              description:
+                "state of binary_sensor.pauluss_macbook_pro_camera_in_use",
+            },
+            context: {
+              id: "43b6ee9293a551c5cc14e8eb60af54ba",
+              parent_id: "e22ddfd5f11dc4aad9a52fc10dab613b",
+              user_id: null,
+            },
+          },
+        },
+      ],
+      "action/1": [
+        { path: "action/1", timestamp: "2021-03-14T06:07:01.875316+00:00" },
+      ],
+      "action/2": [
+        {
+          path: "action/2",
+          timestamp: "2021-03-14T06:07:53.195013+00:00",
+          changed_variables: {
+            wait: {
+              remaining: null,
+              trigger: {
+                platform: "state",
+                entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+                from_state: {
+                  entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+                  state: "on",
+                  attributes: {
+                    friendly_name: "Paulus’s MacBook Pro Camera In Use",
+                    icon: "mdi:camera",
+                  },
+                  last_changed: "2021-03-14T06:07:01.762009+00:00",
+                  last_updated: "2021-03-14T06:07:01.762009+00:00",
+                  context: {
+                    id: "e22ddfd5f11dc4aad9a52fc10dab613b",
+                    parent_id: null,
+                    user_id: null,
+                  },
+                },
+                to_state: {
+                  entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+                  state: "off",
+                  attributes: {
+                    friendly_name: "Paulus’s MacBook Pro Camera In Use",
+                    icon: "mdi:camera-off",
+                  },
+                  last_changed: "2021-03-14T06:07:53.186755+00:00",
+                  last_updated: "2021-03-14T06:07:53.186755+00:00",
+                  context: {
+                    id: "b2308cc91d509ea8e0c623331ab178d6",
+                    parent_id: null,
+                    user_id: null,
+                  },
+                },
+                for: null,
+                attribute: null,
+                description:
+                  "state of binary_sensor.pauluss_macbook_pro_camera_in_use",
+              },
+            },
+          },
+        },
+      ],
+      "action/3": [
+        {
+          path: "action/3",
+          timestamp: "2021-03-14T06:07:53.196014+00:00",
+        },
+      ],
+    },
+    config: {
+      mode: "restart",
+      max_exceeded: "silent",
+      trigger: [
+        {
+          platform: "state",
+          entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+          from: "off",
+          to: "on",
+        },
+      ],
+      action: [
+        {
+          service: "light.turn_on",
+          target: {
+            entity_id: "light.elgato_key_light_air",
+          },
+        },
+        {
+          wait_for_trigger: [
+            {
+              platform: "state",
+              entity_id: "binary_sensor.pauluss_macbook_pro_camera_in_use",
+              from: "on",
+              to: "off",
+            },
+          ],
+        },
+        {
+          delay: 0,
+        },
+        {
+          service: "light.turn_off",
+          target: {
+            entity_id: "light.elgato_key_light_air",
+          },
+        },
+      ],
+      id: "1614732497392",
+      alias: "Auto Elgato",
+      description: "",
+    },
+    context: {
+      id: "43b6ee9293a551c5cc14e8eb60af54ba",
+      parent_id: "e22ddfd5f11dc4aad9a52fc10dab613b",
+      user_id: null,
+    },
+    script_execution: "finished",
+  },
+  logbookEntries: [
+    {
+      name: "Auto Elgato",
+      message:
+        "has been triggered by state of binary_sensor.pauluss_macbook_pro_camera_in_use",
+      source: "state of binary_sensor.pauluss_macbook_pro_camera_in_use",
+      entity_id: "automation.auto_elgato",
+      when: "2021-03-14T06:07:01.768492+00:00",
+      domain: "automation",
+    },
+    {
+      when: "2021-03-14T06:07:01.872187+00:00",
+      name: "Elgato Key Light Air",
+      state: "on",
+      entity_id: "light.elgato_key_light_air",
+      context_entity_id: "automation.auto_elgato",
+      context_entity_id_name: "Auto Elgato",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Auto Elgato",
+    },
+    {
+      when: "2021-03-14T06:07:53.284505+00:00",
+      name: "Elgato Key Light Air",
+      state: "off",
+      entity_id: "light.elgato_key_light_air",
+      context_entity_id: "automation.auto_elgato",
+      context_entity_id_name: "Auto Elgato",
+      context_event_type: "automation_triggered",
+      context_domain: "automation",
+      context_name: "Auto Elgato",
+    },
+  ],
+};

gallery/src/data/traces/types.ts

@@ -0,0 +1,7 @@
+import { AutomationTraceExtended } from "../../../../src/data/trace";
+import { LogbookEntry } from "../../../../src/data/logbook";
+
+export interface DemoTrace {
+  trace: AutomationTraceExtended;
+  logbookEntries: LogbookEntry[];
+}

gallery/src/demos/demo-automation-describe-action.ts

@@ -0,0 +1,96 @@
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import "../../../src/components/ha-card";
+import { describeAction } from "../../../src/data/script_i18n";
+import { provideHass } from "../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../src/types";
+
+const actions = [
+  { wait_template: "{{ true }}", alias: "Something with an alias" },
+  { delay: "0:05" },
+  { wait_template: "{{ true }}" },
+  {
+    condition: "template",
+    value_template: "{{ true }}",
+  },
+  { event: "happy_event" },
+  {
+    device_id: "abcdefgh",
+    domain: "plex",
+    entity_id: "media_player.kitchen",
+  },
+  { scene: "scene.kitchen_morning" },
+  {
+    wait_for_trigger: [
+      {
+        platform: "state",
+        entity_id: "input_boolean.toggle_1",
+      },
+    ],
+  },
+  {
+    variables: {
+      hello: "world",
+    },
+  },
+  {
+    service: "input_boolean.toggle",
+    target: {
+      entity_id: "input_boolean.toggle_4",
+    },
+  },
+];
+
+@customElement("demo-automation-describe-action")
+export class DemoAutomationDescribeAction extends LitElement {
+  @property({ attribute: false }) hass!: HomeAssistant;
+
+  protected render(): TemplateResult {
+    if (!this.hass) {
+      return html``;
+    }
+    return html`
+      <ha-card header="Actions">
+        ${actions.map(
+          (conf) => html`
+            <div class="action">
+              <span>${describeAction(this.hass, conf as any)}</span>
+              <pre>${dump(conf)}</pre>
+            </div>
+          `
+        )}
+      </ha-card>
+    `;
+  }
+
+  protected firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      .action {
+        padding: 16px;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+      }
+      span {
+        margin-right: 16px;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-automation-describe-action": DemoAutomationDescribeAction;
+  }
+}

gallery/src/demos/demo-automation-describe-condition.ts

@@ -0,0 +1,60 @@
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../src/components/ha-card";
+import { describeCondition } from "../../../src/data/automation_i18n";
+
+const conditions = [
+  { condition: "and" },
+  { condition: "not" },
+  { condition: "or" },
+  { condition: "state" },
+  { condition: "numeric_state" },
+  { condition: "sun", after: "sunset" },
+  { condition: "sun", after: "sunrise" },
+  { condition: "zone" },
+  { condition: "time" },
+  { condition: "template" },
+];
+
+@customElement("demo-automation-describe-condition")
+export class DemoAutomationDescribeCondition extends LitElement {
+  protected render(): TemplateResult {
+    return html`
+      <ha-card header="Conditions">
+        ${conditions.map(
+          (conf) => html`
+            <div class="condition">
+              <span>${describeCondition(conf as any)}</span>
+              <pre>${dump(conf)}</pre>
+            </div>
+          `
+        )}
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      .condition {
+        padding: 16px;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+      }
+      span {
+        margin-right: 16px;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-automation-describe-condition": DemoAutomationDescribeCondition;
+  }
+}

gallery/src/demos/demo-automation-describe-trigger.ts

@@ -0,0 +1,63 @@
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../src/components/ha-card";
+import { describeTrigger } from "../../../src/data/automation_i18n";
+
+const triggers = [
+  { platform: "state" },
+  { platform: "mqtt" },
+  { platform: "geo_location" },
+  { platform: "homeassistant" },
+  { platform: "numeric_state" },
+  { platform: "sun" },
+  { platform: "time_pattern" },
+  { platform: "webhook" },
+  { platform: "zone" },
+  { platform: "tag" },
+  { platform: "time" },
+  { platform: "template" },
+  { platform: "event" },
+];
+
+@customElement("demo-automation-describe-trigger")
+export class DemoAutomationDescribeTrigger extends LitElement {
+  protected render(): TemplateResult {
+    return html`
+      <ha-card header="Triggers">
+        ${triggers.map(
+          (conf) => html`
+            <div class="trigger">
+              <span>${describeTrigger(conf as any)}</span>
+              <pre>${dump(conf)}</pre>
+            </div>
+          `
+        )}
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      .trigger {
+        padding: 16px;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+      }
+      span {
+        margin-right: 16px;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-automation-describe-trigger": DemoAutomationDescribeTrigger;
+  }
+}

gallery/src/demos/demo-automation-trace-timeline.ts

@@ -0,0 +1,82 @@
+/* eslint-disable lit/no-template-arrow */
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import "../../../src/components/ha-card";
+import "../../../src/components/trace/hat-script-graph";
+import "../../../src/components/trace/hat-trace-timeline";
+import { provideHass } from "../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../src/types";
+import { mockDemoTrace } from "../data/traces/mock-demo-trace";
+import { DemoTrace } from "../data/traces/types";
+
+const traces: DemoTrace[] = [
+  mockDemoTrace({ state: "running" }),
+  mockDemoTrace({ state: "debugged" }),
+  mockDemoTrace({ state: "stopped", script_execution: "failed_conditions" }),
+  mockDemoTrace({ state: "stopped", script_execution: "failed_single" }),
+  mockDemoTrace({ state: "stopped", script_execution: "failed_max_runs" }),
+  mockDemoTrace({ state: "stopped", script_execution: "finished" }),
+  mockDemoTrace({ state: "stopped", script_execution: "aborted" }),
+  mockDemoTrace({
+    state: "stopped",
+    script_execution: "error",
+    error: 'Variable "beer" cannot be None',
+  }),
+  mockDemoTrace({ state: "stopped", script_execution: "cancelled" }),
+];
+
+@customElement("demo-automation-trace-timeline")
+export class DemoAutomationTraceTimeline extends LitElement {
+  @property({ attribute: false }) hass?: HomeAssistant;
+
+  protected render(): TemplateResult {
+    if (!this.hass) {
+      return html``;
+    }
+    return html`
+      ${traces.map(
+        (trace) => html`
+          <ha-card .header=${trace.trace.config.alias}>
+            <div class="card-content">
+              <hat-trace-timeline
+                .hass=${this.hass}
+                .trace=${trace.trace}
+                .logbookEntries=${trace.logbookEntries}
+              ></hat-trace-timeline>
+              <button @click=${() => console.log(trace)}>Log trace</button>
+            </div>
+          </ha-card>
+        `
+      )}
+    `;
+  }
+
+  protected firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px;
+      }
+      .card-content {
+        display: flex;
+      }
+      button {
+        position: absolute;
+        top: 0;
+        right: 0;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-automation-trace-timeline": DemoAutomationTraceTimeline;
+  }
+}

gallery/src/demos/demo-automation-trace.ts

@@ -0,0 +1,92 @@
+/* eslint-disable lit/no-template-arrow */
+import { html, css, LitElement, TemplateResult } from "lit";
+import "../../../src/components/ha-card";
+import "../../../src/components/trace/hat-script-graph";
+import "../../../src/components/trace/hat-trace-timeline";
+import { customElement, property, state } from "lit/decorators";
+import { provideHass } from "../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../src/types";
+import { DemoTrace } from "../data/traces/types";
+import { basicTrace } from "../data/traces/basic_trace";
+import { motionLightTrace } from "../data/traces/motion-light-trace";
+
+const traces: DemoTrace[] = [basicTrace, motionLightTrace];
+
+@customElement("demo-automation-trace")
+export class DemoAutomationTrace extends LitElement {
+  @property({ attribute: false }) hass?: HomeAssistant;
+
+  @state() private _selected = {};
+
+  protected render(): TemplateResult {
+    if (!this.hass) {
+      return html``;
+    }
+    return html`
+      ${traces.map(
+        (trace, idx) => html`
+          <ha-card .header=${trace.trace.config.alias}>
+            <div class="card-content">
+              <hat-script-graph
+                .trace=${trace.trace}
+                .selected=${this._selected[idx]}
+                @graph-node-selected=${(ev) => {
+                  this._selected = { ...this._selected, [idx]: ev.detail.path };
+                }}
+              ></hat-script-graph>
+              <hat-trace-timeline
+                allowPick
+                .hass=${this.hass}
+                .trace=${trace.trace}
+                .logbookEntries=${trace.logbookEntries}
+                .selectedPath=${this._selected[idx]}
+                @value-changed=${(ev) => {
+                  this._selected = {
+                    ...this._selected,
+                    [idx]: ev.detail.value,
+                  };
+                }}
+              ></hat-trace-timeline>
+              <button @click=${() => console.log(trace)}>Log trace</button>
+            </div>
+          </ha-card>
+        `
+      )}
+    `;
+  }
+
+  protected firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px;
+      }
+      .card-content {
+        display: flex;
+      }
+      .card-content > * {
+        margin-right: 16px;
+      }
+      .card-content > *:last-child {
+        margin-right: 0;
+      }
+      button {
+        position: absolute;
+        top: 0;
+        right: 0;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-automation-trace": DemoAutomationTrace;
+  }
+}

gallery/src/demos/demo-ha-alert.ts

@@ -0,0 +1,156 @@
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../src/components/ha-alert";
+import "../../../src/components/ha-card";
+
+const alerts: {
+  title?: string;
+  description: string | TemplateResult;
+  type: "info" | "warning" | "error" | "success";
+  dismissable?: boolean;
+  action?: string;
+  rtl?: boolean;
+}[] = [
+  {
+    title: "Test info alert",
+    description: "This is a test info alert with a title and description",
+    type: "info",
+  },
+  {
+    title: "Test warning alert",
+    description: "This is a test warning alert with a title and description",
+    type: "warning",
+  },
+  {
+    title: "Test error alert",
+    description: "This is a test error alert with a title and description",
+    type: "error",
+  },
+  {
+    title: "Test warning with long string",
+    description:
+      "sensor.lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum_lorem_ipsum",
+    type: "warning",
+  },
+  {
+    title: "Test success alert",
+    description: "This is a test success alert with a title and description",
+    type: "success",
+  },
+  {
+    description: "This is a test info alert with description only",
+    type: "info",
+  },
+  {
+    description:
+      "This is a test warning alert with a rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really rally really really long description only",
+    type: "warning",
+  },
+  {
+    title: "Error with description and list",
+    description: html`<p>
+        This is a test error alert with a title, description and a list
+      </p>
+      <ul>
+        <li>List item #1</li>
+        <li>List item #2</li>
+        <li>List item #3</li>
+      </ul>`,
+    type: "error",
+  },
+  {
+    title: "Test dismissable alert",
+    description: "This is a test success alert that can be dismissable",
+    type: "success",
+    dismissable: true,
+  },
+  {
+    description: "Dismissable information",
+    type: "info",
+    dismissable: true,
+  },
+  {
+    title: "Error with action",
+    description: "This is a test error alert with action",
+    type: "error",
+    action: "restart",
+  },
+  {
+    title: "Unsaved data",
+    description: "You have unsaved data",
+    type: "warning",
+    action: "save",
+  },
+  {
+    description: "Dismissable information (RTL)",
+    type: "info",
+    dismissable: true,
+    rtl: true,
+  },
+  {
+    title: "Error with action",
+    description: "This is a test error alert with action (RTL)",
+    type: "error",
+    action: "restart",
+    rtl: true,
+  },
+  {
+    title: "Test success alert (RTL)",
+    description: "This is a test success alert with a title and description",
+    type: "success",
+    rtl: true,
+  },
+];
+
+@customElement("demo-ha-alert")
+export class DemoHaAlert extends LitElement {
+  protected render(): TemplateResult {
+    return html`
+      <ha-card header="ha-alert demo">
+        <div class="card-content">
+          ${alerts.map(
+            (alert) => html`
+              <ha-alert
+                .title=${alert.title || ""}
+                .alertType=${alert.type}
+                .dismissable=${alert.dismissable || false}
+                .actionText=${alert.action || ""}
+                .rtl=${alert.rtl || false}
+              >
+                ${alert.description}
+              </ha-alert>
+            `
+          )}
+        </div>
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      ha-alert {
+        display: block;
+        margin: 24px 0;
+      }
+      .condition {
+        padding: 16px;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+      }
+      span {
+        margin-right: 16px;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-ha-alert": DemoHaAlert;
+  }
+}

gallery/src/demos/demo-ha-form.ts

@@ -0,0 +1,212 @@
+/* eslint-disable lit/no-template-arrow */
+import { LitElement, TemplateResult, css, html } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../src/components/ha-form/ha-form";
+import "../../../src/components/ha-card";
+import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
+import type { HaFormSchema } from "../../../src/components/ha-form/ha-form";
+
+const SCHEMAS: {
+  title: string;
+  translations?: Record<string, string>;
+  error?: Record<string, string>;
+  schema: HaFormSchema[];
+}[] = [
+  {
+    title: "Authentication",
+    translations: {
+      username: "Username",
+      password: "Password",
+      invalid_login: "Invalid login",
+    },
+    error: {
+      base: "invalid_login",
+    },
+    schema: [
+      {
+        type: "string",
+        name: "username",
+        required: true,
+      },
+      {
+        type: "string",
+        name: "password",
+        required: true,
+      },
+    ],
+  },
+
+  {
+    title: "One of each",
+    schema: [
+      {
+        type: "constant",
+        value: "Constant Value",
+        name: "constant",
+        required: true,
+      },
+      {
+        type: "boolean",
+        name: "bool",
+        optional: true,
+        default: false,
+      },
+      {
+        type: "integer",
+        name: "int",
+        optional: true,
+        default: 10,
+      },
+      {
+        type: "string",
+        name: "string",
+        optional: true,
+        default: "Default",
+      },
+      {
+        type: "select",
+        options: [
+          ["default", "default"],
+          ["other", "other"],
+        ],
+        name: "select",
+        optional: true,
+        default: "default",
+      },
+      {
+        type: "multi_select",
+        options: {
+          default: "Default",
+          other: "Other",
+        },
+        name: "multi",
+        optional: true,
+        default: ["default"],
+      },
+    ],
+  },
+  {
+    title: "Multi select",
+    schema: [
+      {
+        type: "multi_select",
+        options: {
+          default: "Default",
+          other: "Other",
+        },
+        name: "multi",
+        optional: true,
+        default: ["default"],
+      },
+      {
+        type: "multi_select",
+        options: {
+          default: "Default",
+          other: "Other",
+          uno: "mas",
+          one: "more",
+          and: "another_one",
+          option: "1000",
+        },
+        name: "multi",
+        optional: true,
+        default: ["default"],
+      },
+    ],
+  },
+];
+
+@customElement("demo-ha-form")
+class DemoHaForm extends LitElement {
+  private lightModeData: any = [];
+
+  private darkModeData: any = [];
+
+  protected render(): TemplateResult {
+    return html`
+      ${SCHEMAS.map((info, idx) => {
+        const translations = info.translations || {};
+        const computeLabel = (schema) =>
+          translations[schema.name] || schema.name;
+        const computeError = (error) => translations[error] || error;
+
+        return [
+          [this.lightModeData, "light"],
+          [this.darkModeData, "dark"],
+        ].map(
+          ([data, type]) => html`
+            <div class="row" data-type=${type}>
+              <ha-card .header=${info.title}>
+                <div class="card-content">
+                  <ha-form
+                    .data=${data[idx]}
+                    .schema=${info.schema}
+                    .error=${info.error}
+                    .computeError=${computeError}
+                    .computeLabel=${computeLabel}
+                    @value-changed=${(e) => {
+                      data[idx] = e.detail.value;
+                      this.requestUpdate();
+                    }}
+                  ></ha-form>
+                </div>
+              </ha-card>
+              <pre>${JSON.stringify(data[idx], undefined, 2)}</pre>
+            </div>
+          `
+        );
+      })}
+    `;
+  }
+
+  firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    this.shadowRoot!.querySelectorAll("[data-type=dark]").forEach((el) => {
+      applyThemesOnElement(
+        el,
+        {
+          default_theme: "default",
+          default_dark_theme: "default",
+          themes: {},
+          darkMode: false,
+        },
+        "default",
+        { dark: true }
+      );
+    });
+  }
+
+  static styles = css`
+    .row {
+      margin: 0 auto;
+      max-width: 800px;
+      display: flex;
+      padding: 50px;
+      background-color: var(--primary-background-color);
+    }
+    ha-card {
+      width: 100%;
+      max-width: 384px;
+    }
+    pre {
+      width: 400px;
+      margin: 0 16px;
+      overflow: auto;
+      color: var(--primary-text-color);
+    }
+    @media only screen and (max-width: 800px) {
+      .row {
+        flex-direction: column;
+      }
+      pre {
+        margin: 16px 0;
+      }
+    }
+  `;
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-ha-form": DemoHaForm;
+  }
+}

gallery/src/demos/demo-hui-alarm-panel-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -71,30 +70,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoAlarmPanelEntity extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-alarm-panel-card")
+class DemoAlarmPanelEntity extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    this._setupDemo();
-  }
-
-  private async _setupDemo() {
-    const hass = provideHass(this.$.demos);
-    await hass.updateTranslations(null, "en");
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
+    hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-alarm-panel-card", DemoAlarmPanelEntity);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-alarm-panel-card": DemoAlarmPanelEntity;
+  }
+}

gallery/src/demos/demo-hui-conditional-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -53,26 +52,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoConditional extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-conditional-card")
+class DemoConditional extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-conditional-card", DemoConditional);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-conditional-card": DemoConditional;
+  }
+}

gallery/src/demos/demo-hui-entities-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -217,26 +216,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoEntities extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-entities-card")
+class DemoEntities extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-entities-card", DemoEntities);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-entities-card": DemoEntities;
+  }
+}

gallery/src/demos/demo-hui-entity-button-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -48,7 +47,7 @@ const CONFIGS = [
     config: `
 - type: button
   entity: light.bed_light
-  tap_action: 
+  tap_action:
     action: toggle
     `,
   },
@@ -69,26 +68,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoButtonEntity extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-entity-button-card")
+class DemoButtonEntity extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-entity-button-card", DemoButtonEntity);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-entity-button-card": DemoButtonEntity;
+  }
+}

gallery/src/demos/demo-hui-entity-filter-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -43,7 +42,7 @@ const ENTITIES = [
 
 const CONFIGS = [
   {
-    heading: "Controller",
+    heading: "Unfiltered controller",
     config: `
 - type: entities
   entities:
@@ -53,7 +52,7 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "Basic",
+    heading: "Filtered entities card",
     config: `
 - type: entity-filter
   entities:
@@ -69,7 +68,27 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "With card config",
+    heading: 'With "entities" card config',
+    config: `
+- type: entity-filter
+  entities:
+    - device_tracker.demo_anne_therese
+    - device_tracker.demo_home_boy
+    - device_tracker.demo_paulus
+    - light.bed_light
+    - light.ceiling_lights
+    - light.kitchen_lights
+  state_filter:
+    - "on"
+    - not_home
+  card:
+    type: entities
+    title: Custom Title
+    show_header_toggle: false
+    `,
+  },
+  {
+    heading: 'With "glance" card config',
     config: `
 - type: entity-filter
   entities:
@@ -84,31 +103,31 @@ const CONFIGS = [
     - not_home
   card:
     type: glance
-    show_state: false
+    show_state: true
+    title: Custom Title
     `,
   },
 ];
 
-class DemoFilter extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-entity-filter-card")
+class DemoEntityFilter extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-entity-filter-card", DemoFilter);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-entity-filter-card": DemoEntityFilter;
+  }
+}

gallery/src/demos/demo-hui-gauge-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -107,26 +106,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoGaugeEntity extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-gauge-card")
+class DemoGaugeEntity extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-gauge-card", DemoGaugeEntity);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-gauge-card": DemoGaugeEntity;
+  }
+}

gallery/src/demos/demo-hui-glance-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -77,7 +76,8 @@ const CONFIGS = [
     heading: "With title",
     config: `
 - type: glance
-  title: This is glance
+  title: Custom title
+  columns: 4
   entities:
     - device_tracker.demo_paulus
     - media_player.living_room
@@ -104,9 +104,10 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "No name",
+    heading: "No entity names",
     config: `
 - type: glance
+  columns: 4
   show_name: false
   entities:
     - device_tracker.demo_paulus
@@ -119,9 +120,10 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "No state",
+    heading: "No state labels",
     config: `
 - type: glance
+  columns: 4
   show_state: false
   entities:
     - device_tracker.demo_paulus
@@ -134,9 +136,10 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "No name and no state",
+    heading: "No names and no state labels",
     config: `
 - type: glance
+  columns: 4
   show_name: false
   show_state: false
   entities:
@@ -150,47 +153,24 @@ const CONFIGS = [
     `,
   },
   {
-    heading: "Custom name, custom icon",
+    heading: "Custom name + custom icon",
     config: `
 - type: glance
+  columns: 4
   entities:
     - entity: device_tracker.demo_paulus
       name: ¯\\_(ツ)_/¯
       icon: mdi:home-assistant
-    - media_player.living_room
-    - sun.sun
-    - cover.kitchen_window
-    - entity: light.kitchen_lights
-      icon: mdi:alarm-light
-    - lock.kitchen_door
-    - light.ceiling_lights
-    `,
-  },
-  {
-    heading: "Custom tap action",
-    config: `
-- type: glance
-  entities:
-    - entity: lock.kitchen_door
-      tap_action:
-        type: toggle
-    - entity: light.ceiling_lights
-      tap_action:
-        action: call-service
-        service: light.turn_on
-        service_data:
-          entity_id: light.ceiling_lights
-    - device_tracker.demo_paulus
-    - media_player.living_room
-    - sun.sun
-    - cover.kitchen_window
-    - light.kitchen_lights
+    - entity: media_player.living_room
+      name: ¯\\_(ツ)_/¯
+      icon: mdi:home-assistant
     `,
   },
   {
     heading: "Selectively hidden name",
     config: `
 - type: glance
+  columns: 4
   entities:
     - device_tracker.demo_paulus
     - entity: media_player.living_room
@@ -199,45 +179,55 @@ const CONFIGS = [
     - entity: cover.kitchen_window
       name:
     - light.kitchen_lights
+    - entity: lock.kitchen_door
+      name:
+    - light.ceiling_lights
     `,
   },
   {
-    heading: "Primary theme",
+    heading: "Custom tap action",
     config: `
 - type: glance
-  theming: primary
+  columns: 4
   entities:
-    - device_tracker.demo_paulus
-    - media_player.living_room
-    - sun.sun
-    - cover.kitchen_window
-    - light.kitchen_lights
-    - lock.kitchen_door
-    - light.ceiling_lights
+    - entity: lock.kitchen_door
+      name: Custom
+      tap_action:
+        type: toggle
+    - entity: light.ceiling_lights
+      name: Custom
+      tap_action:
+        action: call-service
+        service: light.turn_on
+        service_data:
+          entity_id: light.ceiling_lights
+    - entity: sun.sun
+      name: Regular
+    - entity: light.kitchen_lights
+      name: Regular
     `,
   },
 ];
 
-class DemoPicEntity extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-glance-card")
+class DemoGlanceEntity extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-glance-card", DemoPicEntity);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-glance-card": DemoGlanceEntity;
+  }
+}

gallery/src/demos/demo-hui-grid-and-stack-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { mockHistory } from "../../../demo/src/stubs/history";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
@@ -44,6 +43,110 @@ const ENTITIES = [
 ];
 
 const CONFIGS = [
+  {
+    heading: "Default Grid",
+    config: `
+- type: grid
+  cards:
+    - type: entity
+      entity: light.kitchen_lights
+    - type: entity
+      entity: light.bed_light
+    - type: entity
+      entity: device_tracker.demo_paulus
+    - type: sensor
+      entity: sensor.illumination
+      graph: line
+    - type: entity
+      entity: device_tracker.demo_anne_therese
+    `,
+  },
+  {
+    heading: "Non-square Grid with 2 columns",
+    config: `
+- type: grid
+  columns: 2
+  square: false
+  cards:
+    - type: entity
+      entity: light.kitchen_lights
+    - type: entity
+      entity: light.bed_light
+    - type: entity
+      entity: device_tracker.demo_paulus
+    - type: sensor
+      entity: sensor.illumination
+      graph: line
+    `,
+  },
+  {
+    heading: "Default Grid with title",
+    config: `
+- type: grid
+  title: Kitchen
+  cards:
+    - type: entity
+      entity: light.kitchen_lights
+    - type: entity
+      entity: light.bed_light
+    - type: entity
+      entity: device_tracker.demo_paulus
+    - type: sensor
+      entity: sensor.illumination
+      graph: line
+    - type: entity
+      entity: device_tracker.demo_anne_therese
+    `,
+  },
+  {
+    heading: "Columns 4",
+    config: `
+- type: grid
+  columns: 4
+  cards:
+    - type: entity
+      entity: light.kitchen_lights
+    - type: entity
+      entity: light.bed_light
+    - type: entity
+      entity: device_tracker.demo_paulus
+    - type: sensor
+      entity: sensor.illumination
+      graph: line
+    `,
+  },
+  {
+    heading: "Columns 2",
+    config: `
+- type: grid
+  columns: 2
+  cards:
+    - type: entity
+      entity: light.kitchen_lights
+    - type: entity
+      entity: light.bed_light
+    `,
+  },
+  {
+    heading: "Columns 1",
+    config: `
+- type: grid
+  columns: 1
+  cards:
+  - type: entity
+    entity: light.kitchen_lights
+    `,
+  },
+  {
+    heading: "Size for single card",
+    config: `
+- type: grid
+  cards:
+  - type: entity
+    entity: light.kitchen_lights
+    `,
+  },
+
   {
     heading: "Vertical Stack",
     config: `
@@ -94,65 +197,28 @@ const CONFIGS = [
       entity: light.bed_light
     `,
   },
-  {
-    heading: "Default Grid",
-    config: `
-- type: grid
-  cards:
-    - type: entity
-      entity: light.kitchen_lights
-    - type: entity
-      entity: light.bed_light
-    - type: entity
-      entity: device_tracker.demo_paulus
-    - type: sensor
-      entity: sensor.illumination
-      graph: line
-    - type: entity
-      entity: device_tracker.demo_anne_therese
-    `,
-  },
-  {
-    heading: "Non-square Grid with 2 columns",
-    config: `
-- type: grid
-  columns: 2
-  square: false
-  cards:
-    - type: entity
-      entity: light.kitchen_lights
-    - type: entity
-      entity: light.bed_light
-    - type: entity
-      entity: device_tracker.demo_paulus
-    - type: sensor
-      entity: sensor.illumination
-      graph: line
-    `,
-  },
 ];
 
-class DemoStack extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-grid-and-stack-card")
+class DemoStack extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
     mockHistory(hass);
   }
 }
 
-customElements.define("demo-hui-stack-card", DemoStack);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-grid-and-stack-card": DemoStack;
+  }
+}

gallery/src/demos/demo-hui-iframe-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
 import "../components/demo-cards";
 
 const CONFIGS = [
@@ -37,19 +36,15 @@ const CONFIGS = [
   },
 ];
 
-class DemoIframe extends PolymerElement {
-  static get template() {
-    return html` <demo-cards configs="[[_configs]]"></demo-cards> `;
-  }
-
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
+@customElement("demo-hui-iframe-card")
+class DemoIframe extends LitElement {
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 }
 
-customElements.define("demo-hui-iframe-card", DemoIframe);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-iframe-card": DemoIframe;
+  }
+}

gallery/src/demos/demo-hui-light-card.ts

@@ -1,6 +1,5 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
+import { html, LitElement, PropertyValues, TemplateResult } from "lit";
+import { customElement, query } from "lit/decorators";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -63,26 +62,25 @@ const CONFIGS = [
   },
 ];
 
-class DemoLightEntity extends PolymerElement {
-  static get template() {
-    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
+@customElement("demo-hui-light-card")
+class DemoLightEntity extends LitElement {
+  @query("#demos") private _demoRoot!: HTMLElement;
+
+  protected render(): TemplateResult {
+    return html`<demo-cards id="demos" .configs=${CONFIGS}></demo-cards>`;
   }
 
-  static get properties() {
-    return {
-      _configs: {
-        type: Object,
-        value: CONFIGS,
-      },
-    };
-  }
-
-  public ready() {
-    super.ready();
-    const hass = provideHass(this.$.demos);
+  protected firstUpdated(changedProperties: PropertyValues) {
+    super.firstUpdated(changedProperties);
+    const hass = provideHass(this._demoRoot);
     hass.updateTranslations(null, "en");
+    hass.updateTranslations("lovelace", "en");
     hass.addEntities(ENTITIES);
   }
 }
 
-customElements.define("demo-hui-light-card", DemoLightEntity);
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-hui-light-card": DemoLightEntity;
+  }
+}