Add conditional form schema

Allow the serial port path to wrap if it is too long

.browserslistrc

@@ -0,0 +1,33 @@
+[modern]
+# Support for dynamic import is the main litmus test for serving modern builds.
+# Although officially a ES2020 feature, browsers implemented it early, so this
+# enables all of ES2017 and some features in ES2018.
+supports es6-module-dynamic-import
+
+# Exclude Safari 11-12 because of a bug in tagged template literals
+# https://bugs.webkit.org/show_bug.cgi?id=190756
+# Note: Dropping version 11 also enables several more ES2018 features
+not Safari < 13
+not iOS < 13
+
+# Exclude unsupported browsers
+not dead
+
+[legacy]
+# Legacy builds are served when modern requirements are not met and support browsers:
+# - released in the last 7 years + current alpha/beta versionss
+# - with global utilization above 0.05%
+# The lattermost query ensures that support for popular old browsers is not dropped too early
+# (e.g. IE 11, Android 4.4, or Samsung 4).
+#
+# In addition, legacy browsers must support some minimum features that cannot be polyfilled:
+# - ES5 (strict mode)
+# - web sockets to communicate with backend
+# - inline SVG used widely in buttons, widgets, etc.
+# - custom events used for most user interactions
+# - CSS flexbox used in the majority of the layout
+# Nearly all of these are redundant with the above rules.
+# As of May 2023, only web sockets must be added to the query.
+unreleased versions
+last 7 years
+> 0.05% and supports websockets

.devcontainer/Dockerfile

@@ -0,0 +1,7 @@
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.148.1/containers/python-3/.devcontainer/base.Dockerfile
+FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.10
+
+ENV \
+  DEBIAN_FRONTEND=noninteractive \
+  DEVCONTAINER=true \
+  PATH=$PATH:./node_modules/.bin

.devcontainer/devcontainer.json

@@ -0,0 +1,43 @@
+{
+  "name": "Home Assistant Frontend",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "appPort": "8124:8123",
+  "postStartCommand": "script/bootstrap",
+  "containerEnv": {
+    "WORKSPACE_DIRECTORY": "${containerWorkspaceFolder}"
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode",
+        "runem.lit-plugin",
+        "github.vscode-pull-request-github",
+        "eamodio.gitlens"
+      ],
+      "settings": {
+        "files.eol": "\n",
+        "editor.tabSize": 2,
+        "editor.formatOnPaste": false,
+        "editor.formatOnSave": true,
+        "editor.formatOnType": true,
+        "editor.renderWhitespace": "boundary",
+        "editor.rulers": [80],
+        "[typescript]": {
+          "editor.defaultFormatter": "esbenp.prettier-vscode"
+        },
+        "[javascript]": {
+          "editor.defaultFormatter": "esbenp.prettier-vscode"
+        },
+        "files.trimTrailingWhitespace": true,
+        "terminal.integrated.shell.linux": "/usr/bin/zsh",
+        "gitlens.showWelcomeOnInstall": false,
+        "gitlens.showWhatsNewAfterUpgrades": false,
+        "workbench.startupEditor": "none"
+      }
+    }
+  }
+}

.eslintrc.json

@@ -1,11 +1,12 @@
 {
   "extends": [
+    "airbnb-base",
     "airbnb-typescript/base",
     "plugin:@typescript-eslint/recommended",
     "plugin:wc/recommended",
-    "plugin:lit/recommended",
+    "plugin:lit/all",
-    "prettier",
+    "plugin:lit-a11y/recommended",
-    "prettier/@typescript-eslint"
+    "prettier"
   ],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
@@ -19,7 +20,7 @@
   "settings": {
     "import/resolver": {
       "webpack": {
-        "config": "./webpack.config.js"
+        "config": "./webpack.config.cjs"
       }
     }
   },
@@ -29,63 +30,101 @@
     "__BUILD__": false,
     "__VERSION__": false,
     "__STATIC_PATH__": false,
-    "Polymer": true,
+    "__SUPERVISOR__": false,
-    "webkitSpeechRecognition": false,
+    "Polymer": true
-    "ResizeObserver": false
   },
   "env": {
     "browser": true,
     "es6": true
   },
   "rules": {
-    "class-methods-use-this": 0,
+    "class-methods-use-this": "off",
-    "new-cap": 0,
+    "new-cap": "off",
-    "prefer-template": 0,
+    "prefer-template": "off",
-    "object-shorthand": 0,
+    "object-shorthand": "off",
-    "func-names": 0,
+    "func-names": "off",
-    "prefer-arrow-callback": 0,
+    "no-underscore-dangle": "off",
-    "no-underscore-dangle": 0,
+    "strict": "off",
-    "strict": 0,
+    "no-plusplus": "off",
-    "prefer-spread": 0,
+    "no-bitwise": "error",
-    "no-plusplus": 0,
+    "comma-dangle": "off",
-    "no-bitwise": 2,
+    "vars-on-top": "off",
-    "comma-dangle": 0,
+    "no-continue": "off",
-    "vars-on-top": 0,
+    "no-param-reassign": "off",
-    "no-continue": 0,
+    "no-multi-assign": "off",
-    "no-param-reassign": 0,
+    "no-console": "error",
-    "no-multi-assign": 0,
+    "radix": "off",
-    "no-console": 2,
+    "no-alert": "off",
-    "radix": 0,
+    "no-nested-ternary": "off",
-    "no-alert": 0,
+    "prefer-destructuring": "off",
-    "no-return-await": 0,
-    "no-nested-ternary": 0,
-    "prefer-destructuring": 0,
     "no-restricted-globals": [2, "event"],
-    "prefer-promise-reject-errors": 0,
+    "prefer-promise-reject-errors": "off",
-    "import/order": 0,
+    "import/prefer-default-export": "off",
-    "import/prefer-default-export": 0,
+    "import/no-default-export": "off",
-    "import/no-unresolved": 0,
+    "import/no-unresolved": "off",
-    "import/no-cycle": 0,
+    "import/no-cycle": "off",
     "import/extensions": [
-      2,
+      "error",
       "ignorePackages",
-      { "ts": "never", "js": "never" }
+      {
+        "ts": "never",
+        "js": "never"
+      }
     ],
     "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
-    "object-curly-newline": 0,
+    "object-curly-newline": "off",
-    "default-case": 0,
+    "default-case": "off",
-    "wc/no-self-class": 0,
+    "wc/no-self-class": "off",
-    "no-shadow": 0,
+    "no-shadow": "off",
-    "@typescript-eslint/camelcase": 0,
+    "@typescript-eslint/camelcase": "off",
-    "@typescript-eslint/ban-ts-comment": 0,
+    "@typescript-eslint/ban-ts-comment": "off",
-    "@typescript-eslint/no-use-before-define": 0,
+    "@typescript-eslint/no-use-before-define": "off",
-    "@typescript-eslint/no-non-null-assertion": 0,
+    "@typescript-eslint/no-non-null-assertion": "off",
-    "@typescript-eslint/no-explicit-any": 0,
+    "@typescript-eslint/no-explicit-any": "off",
-    "@typescript-eslint/no-unused-vars": 0,
+    "@typescript-eslint/explicit-function-return-type": "off",
-    "@typescript-eslint/explicit-function-return-type": 0,
+    "@typescript-eslint/explicit-module-boundary-types": "off",
-    "@typescript-eslint/explicit-module-boundary-types": 0,
+    "@typescript-eslint/no-shadow": ["error"],
-    "@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",
+    "lit/no-native-attributes": "warn",
+    "lit/no-this-assign-in-render": "warn",
+    "lit-a11y/click-events-have-key-events": ["off"],
+    "lit-a11y/no-autofocus": "off",
+    "lit-a11y/alt-text": "warn",
+    "lit-a11y/anchor-is-valid": "warn",
+    "lit-a11y/role-has-required-aria-attrs": "warn"
   },
-  "plugins": ["disable", "import", "lit", "prettier", "@typescript-eslint"],
+  "plugins": ["disable", "unused-imports"],
   "processor": "disable/disable"
 }

.github/ISSUE_TEMPLATE.md

@@ -51,7 +51,7 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 <!--
   Provide details about the versions you are using, which helps us reproducing
   and finding the issue quicker. Version information is found in the
-  Home Assistant frontend: Configuration -> Info.
+  Home Assistant frontend: Settings -> About.
 
   Browser version and operating system is important! Please try to replicate
   your issue in a different browser and be sure to include your findings.
@@ -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
+  An example configuration that caused the problem for you, e.g. the YAML configuration
-  if it seems unimportant to you. Please be sure to remove personal information
+  of the used cards. Fill this out even if it seems unimportant to you. Please be sure
-  like passwords, private URLs and other credentials.
+  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 / Dashboards
+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 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: [Settings -> About](https://my.home-assistant.io/redirect/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/ISSUE_TEMPLATE/config.yml

@@ -1,17 +1,17 @@
 blank_issues_enabled: false
 contact_links:
-  - name: Request a feature for the UI, Frontend or Lovelace
+  - name: Request a feature for the UI / Dashboards
     url: https://github.com/home-assistant/frontend/discussions/category_choices
     about: Request an new feature for the Home Assistant frontend.
-  - name: Report a bug that is NOT related to the UI, Frontend or Lovelace
+  - name: Report a bug that is NOT related to the UI / Dashboards
     url: https://github.com/home-assistant/core/issues
-    about: This is the issue tracker for our frontend. Please report other issues with the backend repository.
+    about: This is the issue tracker for our frontend. Please report other issues in the backend ("core") repository.
   - name: Report incorrect or missing information on our website
     url: https://github.com/home-assistant/home-assistant.io/issues
     about: Our documentation has its own issue tracker. Please report issues with the website there.
   - name: I have a question or need support
     url: https://www.home-assistant.io/help
-    about: We use GitHub for tracking bugs, check our website for resources on getting help.
+    about: We use GitHub for tracking bugs. Check our website for resources on getting help.
   - name: I'm unsure where to go
     url: https://www.home-assistant.io/join-chat
     about: If you are unsure where to go, then joining our chat is recommended; Just ask!

.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: weekly
+      time: "06:00"
+    open-pull-requests-limit: 10

.github/workflows/cast_deployment.yaml

@@ -0,0 +1,85 @@
+name: Cast deployment
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+  push:
+    branches:
+      - master
+
+env:
+  NODE_OPTIONS: --max_old_space_size=6144
+
+jobs:
+  deploy_dev:
+    runs-on: ubuntu-latest
+    name: Deploy Development
+    if: github.event_name != 'push'
+    environment:
+      name: Cast Development
+      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+        with:
+          ref: dev
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Cast
+        run: ./node_modules/.bin/gulp build-cast
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=cast/dist --alias dev
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_CAST_SITE_ID }}
+
+  deploy_master:
+    runs-on: ubuntu-latest
+    name: Deploy Production
+    if: github.event_name == 'push'
+    environment:
+      name: Cast Production
+      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+        with:
+          ref: master
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Cast
+        run: ./node_modules/.bin/gulp build-cast
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=cast/dist --prod
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_CAST_SITE_ID }}

.github/workflows/ci.yaml

@@ -10,113 +10,87 @@ on:
       - dev
       - master
 
+env:
+  NODE_OPTIONS: --max_old_space_size=6144
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
+    name: Lint and check format
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.5.2
-      - name: Setting up Node.js
+      - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v3.6.0
         with:
-          node-version: 12.x
+          node-version-file: ".nvmrc"
-      - name: Get yarn cache path
+          cache: yarn
-        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: |
-            ${{ runner.os }}-yarn-
       - name: Install dependencies
-        run: yarn install
+        run: yarn install --immutable
-        env:
+      - name: Check for duplicate dependencies
-          CI: true
+        run: yarn dedupe --check
       - name: Build resources
-        run: ./node_modules/.bin/gulp gen-icons-json build-translations gather-gallery-demos
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-pages
       - name: Run eslint
-        run: ./node_modules/.bin/eslint '{**/src,src}/**/*.{js,ts,html}' --ignore-path .gitignore
+        run: yarn run lint:eslint --quiet
       - name: Run tsc
-        run: ./node_modules/.bin/tsc
+        run: yarn run lint:types
+      - name: Run prettier
+        run: yarn run lint:prettier
   test:
+    name: Run tests
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.5.2
-      - name: Setting up Node.js
+      - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v3.6.0
         with:
-          node-version: 12.x
+          node-version-file: ".nvmrc"
-      - name: Get yarn cache path
+          cache: yarn
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(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: |
-            ${{ runner.os }}-yarn-
       - name: Install dependencies
-        run: yarn install
+        run: yarn install --immutable
-        env:
+      - name: Build resources
-          CI: true
+        run: ./node_modules/.bin/gulp build-translations build-locale-data
-      - name: Run Mocha
+      - name: Run Tests
-        run: npm run mocha
+        run: yarn run test
   build:
-    runs-on: ubuntu-latest
+    name: Build frontend
     needs: [lint, test]
+    runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.5.2
-      - name: Setting up Node.js
+      - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v3.6.0
         with:
-          node-version: 12.x
+          node-version-file: ".nvmrc"
-      - name: Get yarn cache path
+          cache: yarn
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(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: |
-            ${{ runner.os }}-yarn-
       - name: Install dependencies
-        run: yarn install
+        run: yarn install --immutable
-        env:
-          CI: true
       - name: Build Application
         run: ./node_modules/.bin/gulp build-app
         env:
           IS_TEST: "true"
   supervisor:
-    runs-on: ubuntu-latest
+    name: Build supervisor
     needs: [lint, test]
+    runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.5.2
-      - name: Setting up Node.js
+      - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v3.6.0
         with:
-          node-version: 12.x
+          node-version-file: ".nvmrc"
-      - name: Get yarn cache path
+          cache: yarn
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
-        run: yarn install
+        run: yarn install --immutable
-        env:
-          CI: true
       - name: Build Application
         run: ./node_modules/.bin/gulp build-hassio
         env:

.github/workflows/codeql-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3.5.2
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
@@ -36,14 +36,14 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@v2
       with:
         languages: ${{ matrix.language }}
 
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      uses: github/codeql-action/autobuild@v2
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -57,4 +57,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@v2

.github/workflows/demo.yaml

@@ -1,39 +0,0 @@
-name: Demo
-
-on:
-  push:
-    branches:
-      - dev
-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
-        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-
-      - name: Install dependencies
-        run: yarn install
-        env:
-          CI: true
-      - name: Build Demo
-        run: ./node_modules/.bin/gulp build-demo
-      - name: Deploy to Netlify
-        uses: netlify/actions/cli@master
-        env:
-          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
-          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_DEMO_DEV_SITE_ID }}
-        with:
-          args: deploy --dir=demo/dist --prod

.github/workflows/demo_deployment.yaml

@@ -0,0 +1,86 @@
+name: Demo deployment
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+  push:
+    branches:
+      - dev
+      - master
+
+env:
+  NODE_OPTIONS: --max_old_space_size=6144
+
+jobs:
+  deploy_dev:
+    runs-on: ubuntu-latest
+    name: Demo Development
+    if: github.event_name != 'push' || github.ref_name != 'master'
+    environment:
+      name: Demo Development
+      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+        with:
+          ref: dev
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Demo
+        run: ./node_modules/.bin/gulp build-demo
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=demo/dist --prod
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_DEMO_DEV_SITE_ID }}
+
+  deploy_master:
+    runs-on: ubuntu-latest
+    name: Demo Production
+    if: github.event_name == 'push' && github.ref_name == 'master'
+    environment:
+      name: Demo Production
+      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+        with:
+          ref: master
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Demo
+        run: ./node_modules/.bin/gulp build-demo
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=demo/dist --prod
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_DEMO_SITE_ID }}

.github/workflows/design_deployment.yaml

@@ -0,0 +1,42 @@
+name: Design deployment
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+
+env:
+  NODE_OPTIONS: --max_old_space_size=6144
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment:
+      name: Design
+      url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Gallery
+        run: ./node_modules/.bin/gulp build-gallery
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=gallery/dist --prod
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_GALLERY_SITE_ID }}

.github/workflows/design_preview.yaml

@@ -0,0 +1,51 @@
+name: Design preview
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - labeled
+    branches:
+      - dev
+
+env:
+  NODE_OPTIONS: --max_old_space_size=6144
+
+jobs:
+  preview:
+    runs-on: ubuntu-latest
+    # Skip running on forks since it won't have access to secrets
+    # Skip running PRs without 'needs design preview' label
+    if: github.repository == 'home-assistant/frontend' && contains(github.event.pull_request.labels.*.name, 'needs design preview')
+    steps:
+      - name: Check out files from GitHub
+        uses: actions/checkout@v3.5.2
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build Gallery
+        run: ./node_modules/.bin/gulp build-gallery
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Deploy preview to Netlify
+        id: deploy
+        uses: netlify/actions/cli@master
+        with:
+          args: deploy --dir=gallery/dist --alias "deploy-preview-${{ github.event.number }}"
+        env:
+          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_GALLERY_SITE_ID }}
+
+      - name: Generate summary
+        run: |
+          echo "${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}" >> "$GITHUB_STEP_SUMMARY"

.github/workflows/lock.yml

@@ -9,7 +9,7 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v2.0.1
+      - uses: dessant/lock-threads@v4.0.0
         with:
           github-token: ${{ github.token }}
           issue-lock-inactive-days: "30"

.github/workflows/nightly.yaml

@@ -0,0 +1,71 @@
+name: Nightly
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 1 * * *"
+
+env:
+  PYTHON_VERSION: "3.10"
+  NODE_OPTIONS: --max_old_space_size=6144
+
+permissions:
+  actions: none
+
+jobs:
+  nightly:
+    name: Nightly
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v3.5.2
+
+      - name: Set up Python ${{ env.PYTHON_VERSION }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Download translations
+        run: ./script/translations_download
+        env:
+          LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
+
+      - name: Bump version
+        run: script/version_bump.cjs nightly
+
+      - name: Build nightly Python wheels
+        run: |
+          pip install build
+          yarn install
+          export SKIP_FETCH_NIGHTLY_TRANSLATIONS=1
+          script/build_frontend
+          rm -rf dist home_assistant_frontend.egg-info
+          python3 -m build
+
+      - name: Archive translations
+        run: tar -czvf translations.tar.gz translations
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist/home_assistant_frontend*.whl
+          if-no-files-found: error
+
+      - name: Upload translations
+        uses: actions/upload-artifact@v3
+        with:
+          name: translations
+          path: translations.tar.gz
+          if-no-files-found: error

.github/workflows/release.yaml

@@ -0,0 +1,83 @@
+name: Release
+
+on:
+  release:
+    types:
+      - published
+
+env:
+  PYTHON_VERSION: "3.10"
+  NODE_OPTIONS: --max_old_space_size=6144
+
+# Set default workflow permissions
+# All scopes not mentioned here are set to no access
+# https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token
+permissions:
+  actions: none
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # Required to upload release assets
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v3.5.2
+
+      - name: Verify version
+        uses: home-assistant/actions/helpers/verify-version@master
+
+      - name: Set up Python ${{ env.PYTHON_VERSION }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Setup Node
+        uses: actions/setup-node@v3.6.0
+        with:
+          node-version-file: ".nvmrc"
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Download Translations
+        run: ./script/translations_download
+        env:
+          LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
+      - name: Build and release package
+        run: |
+          python3 -m pip install twine build
+          export TWINE_USERNAME="__token__"
+          export TWINE_PASSWORD="${{ secrets.TWINE_TOKEN }}"
+          export SKIP_FETCH_NIGHTLY_TRANSLATIONS=1
+          script/release
+
+      - name: Upload release assets
+        uses: softprops/action-gh-release@v0.1.15
+        with:
+          files: |
+            dist/*.whl
+            dist/*.tar.gz
+
+  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: Build wheels
+        uses: home-assistant/wheels@2023.04.0
+        with:
+          abi: cp310
+          tag: musllinux_1_2
+          arch: amd64
+          wheels-key: ${{ secrets.WHEELS_KEY }}
+          requirements: "requirements.txt"

.github/workflows/stale.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 90 days stale policy
-        uses: actions/stale@v3.0.13
+        uses: actions/stale@v8.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           days-before-stale: 90

.github/workflows/translations.yaml

@@ -0,0 +1,21 @@
+name: Translations
+
+on:
+  push:
+    branches:
+      - dev
+    paths:
+      - src/translations/en.json
+
+jobs:
+  upload:
+    name: Upload
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v3.5.2
+
+      - name: Upload Translations
+        run: |
+          export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
+          ./script/translations_upload_base

.gitignore

@@ -1,11 +1,24 @@
-build
-build-translations/*
-node_modules/*
-npm-debug.log
 .DS_Store
-hass_frontend/*
 .reify-cache
 
+# build
+build/
+dist/
+/hass_frontend/
+/translations/
+
+# 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
@@ -14,22 +27,23 @@ hass_frontend/*
 # venv stuff
 pyvenv.cfg
 pip-selfcheck.json
-venv
+/venv/
 .venv
-lib
-bin
-dist
 
 # vscode
 .vscode/*
 !.vscode/extensions.json
+!.vscode/launch.json
+!.vscode/tasks.json
 
 # Cast dev settings
 src/cast/dev_const.ts
 
 # Secrets
 .lokalise_token
-yarn-error.log
 
-#asdf
+# asdf
 .tool-versions
+
+# Home Assistant config
+/config/

.hound.yml

@@ -1,6 +0,0 @@
-jshint:
-  enabled: false
-
-eslint:
-  enabled: true
-  config_file: .eslintrc-hound.json

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+yarn run lint-staged --relative --shell "/bin/bash"

.nvmrc

@@ -1 +1 @@
-12.1
+18

.prettierignore

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

.vscode/extensions.json

@@ -2,7 +2,8 @@
   "recommendations": [
     "dbaeumer.vscode-eslint",
     "esbenp.prettier-vscode",
-    "bierner.lit-html",
+    "runem.lit-plugin",
-    "runem.lit-plugin"
+    "github.vscode-pull-request-github",
+    "eamodio.gitlens"
   ]
 }

.vscode/launch.json

@@ -0,0 +1,44 @@
+{
+  // https://github.com/microsoft/vscode-js-debug/blob/master/OPTIONS.md
+  "configurations": [
+    {
+      "name": "Debug Frontend",
+      "request": "launch",
+      "type": "pwa-chrome",
+      "url": "http://localhost:8123/",
+      "webRoot": "${workspaceFolder}/hass_frontend",
+      "disableNetworkCache": true,
+      "preLaunchTask": "Develop Frontend",
+      "outFiles": [
+        "${workspaceFolder}/hass_frontend/frontend_latest/*.js"
+      ]
+    },
+    {
+      "name": "Debug Gallery",
+      "request": "launch",
+      "type": "pwa-chrome",
+      "url": "http://localhost:8100/",
+      "webRoot": "${workspaceFolder}/gallery/dist",
+      "disableNetworkCache": true,
+      "preLaunchTask": "Develop Gallery"
+    },
+    {
+      "name": "Debug Demo",
+      "request": "launch",
+      "type": "pwa-chrome",
+      "url": "http://localhost:8090/",
+      "webRoot": "${workspaceFolder}/demo/dist",
+      "disableNetworkCache": true,
+      "preLaunchTask": "Develop Demo"
+    },
+    {
+      "name": "Debug Cast",
+      "request": "launch",
+      "type": "pwa-chrome",
+      "url": "http://localhost:8080/",
+      "webRoot": "${workspaceFolder}/cast/dist",
+      "disableNetworkCache": true,
+      "preLaunchTask": "Develop Cast"
+    },
+  ]
+}

.vscode/tasks.json

@@ -0,0 +1,214 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Develop Frontend",
+      "type": "gulp",
+      "task": "develop-app",
+      // Sync changes here to other tasks until issue resolved
+      // https://github.com/Microsoft/vscode/issues/61497
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+      "isBackground": true,
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Develop Supervisor panel",
+      "type": "gulp",
+      "task": "develop-hassio",
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+      "isBackground": true,
+      "group": "build",
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Develop Gallery",
+      "type": "gulp",
+      "task": "develop-gallery",
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+
+      "isBackground": true,
+      "group": "build",
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Develop Demo",
+      "type": "gulp",
+      "task": "develop-demo",
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+
+      "isBackground": true,
+      "group": "build",
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Develop Cast",
+      "type": "gulp",
+      "task": "develop-cast",
+      "problemMatcher": {
+        "owner": "ha-build",
+        "source": "ha-build",
+        "fileLocation": "absolute",
+        "severity": "error",
+        "pattern": [
+          {
+            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
+            "severity": 1,
+            "file": 2,
+            "message": 3,
+            "line": 4,
+            "column": 5
+          }
+        ],
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Changes detected. Starting compilation",
+          "endsPattern": "Build done @"
+        }
+      },
+
+      "isBackground": true,
+      "group": "build",
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Run HA Core in devcontainer",
+      "type": "shell",
+      "command": "script/core",
+      "isBackground": true,
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": [],
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Run HA Core for Supervisor in devcontainer",
+      "type": "shell",
+      "command": "SUPERVISOR=${input:supervisorHost} SUPERVISOR_TOKEN=${input:supervisorToken} script/core",
+      "isBackground": true,
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": [],
+      "runOptions": {
+        "instanceLimit": 1
+      }
+    },
+    {
+      "label": "Setup and fetch nightly translations",
+      "type": "gulp",
+      "task": "setup-and-fetch-nightly-translations",
+      "problemMatcher": []
+          }
+  ],
+  "inputs": [
+    {
+      "id": "supervisorHost",
+      "type": "promptString",
+      "description": "The IP of the Supervisor host running the Remote API proxy add-on"
+    },
+    {
+      "id": "supervisorToken",
+      "type": "promptString",
+      "description": "The token for the Remote API proxy add-on"
+    }
+  ]
+}

.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++) {

.yarn/patches/sortablejs-npm-1.15.0-f3a393abcc.patch

@@ -0,0 +1,39 @@
+diff --git a/modular/sortable.complete.esm.js b/modular/sortable.complete.esm.js
+index 02e9f2d6bebeb430fe6e7c1cc3f9c3c9df051f14..bb8268b0844a1faa4108cc92c0be2a3dbaf23f83 100644
+--- a/modular/sortable.complete.esm.js
++++ b/modular/sortable.complete.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
++        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();
+diff --git a/modular/sortable.core.esm.js b/modular/sortable.core.esm.js
+index b04c8b4634f7c6b4ef1aadbb48afe6564306dea9..39a107163c8c336ebd669b5ea8a936af87e1c1e7 100644
+--- a/modular/sortable.core.esm.js
++++ b/modular/sortable.core.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
++        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();
+diff --git a/modular/sortable.esm.js b/modular/sortable.esm.js
+index 6ec7ed1bb557e21c2578200161e989c65d23150b..0a05475a22904472fac6c13f524c674da76584b0 100644
+--- a/modular/sortable.esm.js
++++ b/modular/sortable.esm.js
+@@ -1657,7 +1657,7 @@ Sortable.prototype =
+           target = parent; // store last element
+         }
+         /* jshint boss:true */
+-        while (parent = parent.parentNode);
++        while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+ 
+       _unhideGhostForTarget();

.yarnrc.yml

@@ -0,0 +1,11 @@
+defaultSemverRangePrefix: ""
+
+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-3.6.0.cjs

MANIFEST.in

@@ -1,5 +1,4 @@
 include README.md
-include LICENSE.md
 graft hass_frontend
 graft hass_frontend_es5
 recursive-exclude * *.py[co]

README.md

@@ -2,7 +2,7 @@
 
 This is the repository for the official [Home Assistant](https://home-assistant.io) frontend.
 
-[![Screenshot of the frontend](https://raw.githubusercontent.com/home-assistant/home-assistant-polymer/master/docs/screenshot.png)](https://demo.home-assistant.io/)
+[![Screenshot of the frontend](https://raw.githubusercontent.com/home-assistant/frontend/master/docs/screenshot.png)](https://demo.home-assistant.io/)
 
 - [View demo of Home Assistant](https://demo.home-assistant.io/)
 - [More information about Home Assistant](https://home-assistant.io)
@@ -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/.eslintrc

@@ -1,7 +0,0 @@
-{
-  "rules": {
-    "import/no-extraneous-dependencies": 0,
-    "no-restricted-syntax": 0,
-    "no-console": 0
-  }
-}

build-scripts/.eslintrc.json

@@ -1,7 +1,12 @@
 {
   "extends": "../.eslintrc.json",
   "rules": {
-    "import/no-extraneous-dependencies": 0,
+    "no-console": "off",
-    "global-require": 0
+    "import/no-extraneous-dependencies": "off",
+    "import/extensions": "off",
+    "import/no-dynamic-require": "off",
+    "global-require": "off",
+    "@typescript-eslint/no-var-requires": "off",
+    "prefer-arrow-callback": "off"
   }
 }

build-scripts/README.md

@@ -0,0 +1,39 @@
+# Bundling Home Assistant Frontend
+
+The Home Assistant build pipeline contains various steps to prepare a build.
+
+- Generating icon files to be included
+- Generating translation files to be included
+- Converting TypeScript, CSS and JSON files to JavaScript
+- Bundling
+- Minifying the files
+- Generating the HTML entrypoint files
+- Generating the service worker
+- Compressing the files
+
+## Converting files
+
+Currently in Home Assistant we use a bundler to convert TypeScript, CSS and JSON files to JavaScript files that the browser understands.
+
+We currently rely on Webpack but also have experimental Rollup support. Both of these programs bundle the converted files in both production and development.
+
+For development, bundling is optional. We just want to get the right files in the browser.
+
+Responsibilities of the converter during development:
+
+- Convert TypeScript to JavaScript
+- Convert CSS to JavaScript that sets the content as the default export
+- Convert JSON to JavaScript that sets the content as the default export
+- Make sure import, dynamic import and web worker references work
+  - Add extensions where missing
+  - Resolve absolute package imports
+- Filter out specific imports/packages
+- Replace constants with values
+
+In production, the following responsibilities are added:
+
+- Minify HTML
+- Bundle multiple imports so that the browser can fetch less files
+- Generate a second version that is ES5 compatible
+
+Configuration for all these steps are specified in [bundle.js](bundle.js).

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

@@ -0,0 +1,168 @@
+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;
+      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.cjs

@@ -0,0 +1,282 @@
+const path = require("path");
+const env = require("./env.cjs");
+const paths = require("./paths.cjs");
+
+// GitHub base URL to use for production source maps
+// Nightly builds use the commit SHA, otherwise assumes there is a tag that matches the version
+module.exports.sourceMapURL = () => {
+  const ref = env.version().endsWith("dev")
+    ? process.env.GITHUB_SHA || "dev"
+    : env.version();
+  return `https://raw.githubusercontent.com/home-assistant/frontend/${ref}`;
+};
+
+// Files from NPM Packages that should not be imported
+// eslint-disable-next-line unused-imports/no-unused-vars
+module.exports.ignorePackages = ({ latestBuild }) => [
+  // Part of yaml.js and only used for !!js functions that we don't use
+  require.resolve("esprima"),
+];
+
+// Files from NPM packages that we should replace with empty file
+module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
+  [
+    // Contains all color definitions for all material color sets.
+    // We don't use it
+    require.resolve("@polymer/paper-styles/color.js"),
+    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/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
+      require.resolve(
+        path.resolve(paths.polymer_dir, "src/resources/compatibility.ts")
+      ),
+    // This polyfill is loaded in workers to support ES5, filter it out.
+    latestBuild && require.resolve("proxy-polyfill/src/index.js"),
+    // Icons in supervisor conflict with icons in HA so we don't load.
+    isHassioBuild &&
+      require.resolve(
+        path.resolve(paths.polymer_dir, "src/components/ha-icon.ts")
+      ),
+    isHassioBuild &&
+      require.resolve(
+        path.resolve(paths.polymer_dir, "src/components/ha-icon-picker.ts")
+      ),
+  ].filter(Boolean);
+
+module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
+  __DEV__: !isProdBuild,
+  __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
+  __VERSION__: JSON.stringify(env.version()),
+  __DEMO__: false,
+  __SUPERVISOR__: false,
+  __BACKWARDS_COMPAT__: false,
+  __STATIC_PATH__: "/static/",
+  "process.env.NODE_ENV": JSON.stringify(
+    isProdBuild ? "production" : "development"
+  ),
+  ...defineOverlay,
+});
+
+module.exports.htmlMinifierOptions = {
+  caseSensitive: true,
+  collapseWhitespace: true,
+  conservativeCollapse: true,
+  decodeEntities: true,
+  removeComments: true,
+  removeRedundantAttributes: true,
+  minifyCSS: {
+    compatibility: "*,-properties.zeroUnits",
+  },
+};
+
+module.exports.terserOptions = ({ latestBuild, isTestBuild }) => ({
+  safari10: !latestBuild,
+  ecma: latestBuild ? 2015 : 5,
+  format: { comments: false },
+  sourceMap: !isTestBuild,
+});
+
+module.exports.babelOptions = ({ latestBuild, isProdBuild, isTestBuild }) => ({
+  babelrc: false,
+  compact: false,
+  assumptions: {
+    privateFieldsAsProperties: true,
+    setPublicClassFields: true,
+    setSpreadProperties: true,
+  },
+  browserslistEnv: latestBuild ? "modern" : "legacy",
+  // Must be unambiguous because some dependencies are CommonJS only
+  sourceType: "unambiguous",
+  presets: [
+    [
+      "@babel/preset-env",
+      {
+        useBuiltIns: latestBuild ? false : "entry",
+        corejs: latestBuild ? false : { version: "3.30", proposals: true },
+        bugfixes: true,
+      },
+    ],
+    "@babel/preset-typescript",
+  ],
+  plugins: [
+    [
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/inline-constants-plugin.cjs"
+      ),
+      {
+        modules: ["@mdi/js"],
+        ignoreModuleNotFound: true,
+      },
+    ],
+    // Minify template literals for production
+    isProdBuild && [
+      "template-html-minifier",
+      {
+        modules: {
+          lit: [
+            "html",
+            { name: "svg", encapsulation: "svg" },
+            { name: "css", encapsulation: "style" },
+          ],
+          "@polymer/polymer/lib/utils/html-tag": ["html"],
+        },
+        strictCSS: true,
+        htmlMinifier: module.exports.htmlMinifierOptions,
+        failOnError: true, // we can turn this off in case of false positives
+      },
+    ],
+    // Import helpers and regenerator from runtime package
+    [
+      "@babel/plugin-transform-runtime",
+      { version: require("../package.json").dependencies["@babel/runtime"] },
+    ],
+    // Support  some proposals still in TC39 process
+    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
+  ].filter(Boolean),
+  exclude: [
+    // \\ for Windows, / for Mac OS and Linux
+    /node_modules[\\/]core-js/,
+    /node_modules[\\/]webpack[\\/]buildin/,
+  ],
+  sourceMaps: !isTestBuild,
+});
+
+const nameSuffix = (latestBuild) => (latestBuild ? "-latest" : "-es5");
+
+const outputPath = (outputRoot, latestBuild) =>
+  path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
+
+const publicPath = (latestBuild, root = "") =>
+  latestBuild ? `${root}/frontend_latest/` : `${root}/frontend_es5/`;
+
+/*
+  BundleConfig {
+    // Object with entrypoints that need to be bundled
+    entry: { [name: string]: pathToFile },
+    // Folder where bundled files need to be written
+    outputPath: string,
+    // absolute url-path where bundled files can be found
+    publicPath: string,
+    // extra definitions that we need to replace in source
+    defineOverlay: {[name: string]: value },
+    // if this is a production build
+    isProdBuild: boolean,
+    // If we're targeting latest browsers
+    latestBuild: boolean,
+    // If we're doing a stats build (create nice chunk names)
+    isStatsBuild: boolean,
+    // If it's just a test build in CI, skip time on source map generation
+    isTestBuild: boolean,
+    // Names of entrypoints that should not be hashed
+    dontHash: Set<string>
+  }
+  */
+
+module.exports.config = {
+  app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild, isWDS }) {
+    return {
+      name: "app" + nameSuffix(latestBuild),
+      entry: {
+        service_worker: "./src/entrypoints/service_worker.ts",
+        app: "./src/entrypoints/app.ts",
+        authorize: "./src/entrypoints/authorize.ts",
+        onboarding: "./src/entrypoints/onboarding.ts",
+        core: "./src/entrypoints/core.ts",
+        "custom-panel": "./src/entrypoints/custom-panel.ts",
+      },
+      outputPath: outputPath(paths.app_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isTestBuild,
+      isWDS,
+    };
+  },
+
+  demo({ isProdBuild, latestBuild, isStatsBuild }) {
+    return {
+      name: "demo" + nameSuffix(latestBuild),
+      entry: {
+        main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
+      },
+      outputPath: outputPath(paths.demo_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      defineOverlay: {
+        __VERSION__: JSON.stringify(`DEMO-${env.version()}`),
+        __DEMO__: true,
+      },
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    };
+  },
+
+  cast({ isProdBuild, latestBuild }) {
+    const entry = {
+      launcher: path.resolve(paths.cast_dir, "src/launcher/entrypoint.ts"),
+      media: path.resolve(paths.cast_dir, "src/media/entrypoint.ts"),
+    };
+
+    if (latestBuild) {
+      entry.receiver = path.resolve(
+        paths.cast_dir,
+        "src/receiver/entrypoint.ts"
+      );
+    }
+
+    return {
+      name: "cast" + nameSuffix(latestBuild),
+      entry,
+      outputPath: outputPath(paths.cast_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+      defineOverlay: {
+        __BACKWARDS_COMPAT__: true,
+      },
+    };
+  },
+
+  hassio({ isProdBuild, latestBuild, isStatsBuild, isTestBuild }) {
+    return {
+      name: "supervisor" + nameSuffix(latestBuild),
+      entry: {
+        entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
+      },
+      outputPath: outputPath(paths.hassio_output_root, latestBuild),
+      publicPath: publicPath(latestBuild, paths.hassio_publicPath),
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isTestBuild,
+      isHassioBuild: true,
+      defineOverlay: {
+        __SUPERVISOR__: true,
+        __STATIC_PATH__: `"${paths.hassio_publicPath}/static/"`,
+      },
+    };
+  },
+
+  gallery({ isProdBuild, latestBuild }) {
+    return {
+      name: "gallery" + nameSuffix(latestBuild),
+      entry: {
+        entrypoint: path.resolve(paths.gallery_dir, "src/entrypoint.js"),
+      },
+      outputPath: outputPath(paths.gallery_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+      defineOverlay: {
+        __DEMO__: true,
+      },
+    };
+  },
+};

build-scripts/bundle.js

@@ -1,202 +0,0 @@
-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"),
-];
-
-// Files from NPM packages that we should replace with empty file
-module.exports.emptyPackages = ({ latestBuild }) =>
-  [
-    // Contains all color definitions for all material color sets.
-    // We don't use it
-    require.resolve("@polymer/paper-styles/color.js"),
-    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"),
-    // Compatibility not needed for latest builds
-    latestBuild &&
-      // wrapped in require.resolve so it blows up if file no longer exists
-      require.resolve(
-        path.resolve(paths.polymer_dir, "src/resources/compatibility.ts")
-      ),
-    // This polyfill is loaded in workers to support ES5, filter it out.
-    latestBuild && require.resolve("proxy-polyfill/src/index.js"),
-  ].filter(Boolean);
-
-module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
-  __DEV__: !isProdBuild,
-  __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
-  __VERSION__: JSON.stringify(env.version()),
-  __DEMO__: false,
-  __BACKWARDS_COMPAT__: false,
-  __STATIC_PATH__: "/static/",
-  "process.env.NODE_ENV": JSON.stringify(
-    isProdBuild ? "production" : "development"
-  ),
-  ...defineOverlay,
-});
-
-module.exports.terserOptions = (latestBuild) => ({
-  safari10: true,
-  ecma: latestBuild ? undefined : 5,
-  output: { comments: false },
-});
-
-module.exports.babelOptions = ({ latestBuild }) => ({
-  babelrc: false,
-  presets: [
-    !latestBuild && [
-      require("@babel/preset-env").default,
-      {
-        useBuiltIns: "entry",
-        corejs: "3.6",
-      },
-    ],
-    require("@babel/preset-typescript").default,
-  ].filter(Boolean),
-  plugins: [
-    // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
-    !latestBuild && [
-      "@babel/plugin-proposal-object-rest-spread",
-      { loose: true, useBuiltIns: true },
-    ],
-    // Only support the syntax, Webpack will handle it.
-    "@babel/plugin-syntax-import-meta",
-    "@babel/plugin-syntax-dynamic-import",
-    "@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 },
-    ],
-  ].filter(Boolean),
-});
-
-// 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");
-
-const publicPath = (latestBuild, root = "") =>
-  latestBuild ? `${root}/frontend_latest/` : `${root}/frontend_es5/`;
-
-/*
-BundleConfig {
-  // Object with entrypoints that need to be bundled
-  entry: { [name: string]: pathToFile },
-  // Folder where bundled files need to be written
-  outputPath: string,
-  // absolute url-path where bundled files can be found
-  publicPath: string,
-  // extra definitions that we need to replace in source
-  defineOverlay: {[name: string]: value },
-  // if this is a production build
-  isProdBuild: boolean,
-  // If we're targeting latest browsers
-  latestBuild: boolean,
-  // If we're doing a stats build (create nice chunk names)
-  isStatsBuild: boolean,
-  // Names of entrypoints that should not be hashed
-  dontHash: Set<string>
-}
-*/
-
-module.exports.config = {
-  app({ isProdBuild, latestBuild, isStatsBuild }) {
-    return {
-      entry: {
-        service_worker: "./src/entrypoints/service_worker.ts",
-        app: "./src/entrypoints/app.ts",
-        authorize: "./src/entrypoints/authorize.ts",
-        onboarding: "./src/entrypoints/onboarding.ts",
-        core: "./src/entrypoints/core.ts",
-        "custom-panel": "./src/entrypoints/custom-panel.ts",
-      },
-      outputPath: outputPath(paths.app_output_root, latestBuild),
-      publicPath: publicPath(latestBuild),
-      isProdBuild,
-      latestBuild,
-      isStatsBuild,
-    };
-  },
-
-  demo({ isProdBuild, latestBuild, isStatsBuild }) {
-    return {
-      entry: {
-        main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
-      },
-      outputPath: outputPath(paths.demo_output_root, latestBuild),
-      publicPath: publicPath(latestBuild),
-      defineOverlay: {
-        __VERSION__: JSON.stringify(`DEMO-${env.version()}`),
-        __DEMO__: true,
-      },
-      isProdBuild,
-      latestBuild,
-      isStatsBuild,
-    };
-  },
-
-  cast({ isProdBuild, latestBuild }) {
-    const entry = {
-      launcher: path.resolve(paths.cast_dir, "src/launcher/entrypoint.ts"),
-    };
-
-    if (latestBuild) {
-      entry.receiver = path.resolve(
-        paths.cast_dir,
-        "src/receiver/entrypoint.ts"
-      );
-    }
-
-    return {
-      entry,
-      outputPath: outputPath(paths.cast_output_root, latestBuild),
-      publicPath: publicPath(latestBuild),
-      isProdBuild,
-      latestBuild,
-      defineOverlay: {
-        __BACKWARDS_COMPAT__: true,
-      },
-    };
-  },
-
-  hassio({ isProdBuild, latestBuild }) {
-    return {
-      entry: {
-        entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
-      },
-      outputPath: outputPath(paths.hassio_output_root, latestBuild),
-      publicPath: publicPath(latestBuild, paths.hassio_publicPath),
-      isProdBuild,
-      latestBuild,
-    };
-  },
-
-  gallery({ isProdBuild, latestBuild }) {
-    return {
-      entry: {
-        entrypoint: path.resolve(paths.gallery_dir, "src/entrypoint.js"),
-      },
-      outputPath: outputPath(paths.gallery_output_root, latestBuild),
-      publicPath: publicPath(latestBuild),
-      isProdBuild,
-      latestBuild,
-    };
-  },
-};

build-scripts/env.cjs

@@ -1,11 +1,14 @@
 const fs = require("fs");
 const path = require("path");
-const paths = require("./paths.js");
+const paths = require("./paths.cjs");
 
 module.exports = {
   useRollup() {
     return process.env.ROLLUP === "1";
   },
+  useWDS() {
+    return process.env.WDS === "1";
+  },
   isProdBuild() {
     return (
       process.env.NODE_ENV === "production" || module.exports.isStatsBuild()
@@ -14,7 +17,7 @@ module.exports = {
   isStatsBuild() {
     return process.env.STATS === "1";
   },
-  isTest() {
+  isTestBuild() {
     return process.env.IS_TEST === "true";
   },
   isNetlify() {
@@ -22,11 +25,11 @@ module.exports = {
   },
   version() {
     const version = fs
-      .readFileSync(path.resolve(paths.polymer_dir, "setup.py"), "utf8")
+      .readFileSync(path.resolve(paths.polymer_dir, "pyproject.toml"), "utf8")
-      .match(/\d{8}\.\d+/);
+      .match(/version\W+=\W"(\d{8}\.\d(?:\.dev)?)"/);
     if (!version) {
       throw Error("Version not found");
     }
-    return version[0];
+    return version[1];
   },
 };

build-scripts/gulp/app.js

@@ -1,17 +1,16 @@
-// Run HA develop mode
+import gulp from "gulp";
-const gulp = require("gulp");
+import env from "../env.cjs";
-
+import "./clean.js";
-const env = require("../env");
+import "./compress.js";
-
+import "./entry-html.js";
-require("./clean.js");
+import "./gather-static.js";
-require("./translations.js");
+import "./gen-icons-json.js";
-require("./gen-icons-json.js");
+import "./locale-data.js";
-require("./gather-static.js");
+import "./rollup.js";
-require("./compress.js");
+import "./service-worker.js";
-require("./webpack.js");
+import "./translations.js";
-require("./service-worker.js");
+import "./wds.js";
-require("./entry-html.js");
+import "./webpack.js";
-require("./rollup.js");
 
 gulp.task(
   "develop-app",
@@ -23,12 +22,16 @@ gulp.task(
     gulp.parallel(
       "gen-service-worker-app-dev",
       "gen-icons-json",
-      "gen-pages-dev",
+      "gen-pages-app-dev",
-      "gen-index-app-dev",
+      "build-translations",
-      "build-translations"
+      "build-locale-data"
     ),
     "copy-static-app",
-    env.useRollup() ? "rollup-watch-app" : "webpack-watch-app"
+    env.useWDS()
+      ? "wds-watch-app"
+      : env.useRollup()
+      ? "rollup-watch-app"
+      : "webpack-watch-app"
   )
 );
 
@@ -39,15 +42,11 @@ 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
+    // Don't compress running tests
-    (env.isTest() ? [] : ["compress-app"]),
+    ...(env.isTestBuild() ? [] : ["compress-app"]),
-    gulp.parallel(
+    gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod")
-      "gen-pages-prod",
-      "gen-index-app-prod",
-      "gen-service-worker-app-prod"
-    )
   )
 );

build-scripts/gulp/cast.js

@@ -1,14 +1,12 @@
-const gulp = require("gulp");
+import gulp from "gulp";
-
+import env from "../env.cjs";
-const env = require("../env");
+import "./clean.js";
-
+import "./entry-html.js";
-require("./clean.js");
+import "./gather-static.js";
-require("./translations.js");
+import "./rollup.js";
-require("./gather-static.js");
+import "./service-worker.js";
-require("./webpack.js");
+import "./translations.js";
-require("./service-worker.js");
+import "./webpack.js";
-require("./entry-html.js");
-require("./rollup.js");
 
 gulp.task(
   "develop-cast",
@@ -18,9 +16,9 @@ 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",
+    "gen-pages-cast-dev",
     env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
   )
 );
@@ -33,9 +31,9 @@ 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"
+    "gen-pages-cast-prod"
   )
 );

build-scripts/gulp/clean.js

@@ -1,36 +1,40 @@
-const del = require("del");
+import { deleteSync } from "del";
-const gulp = require("gulp");
+import gulp from "gulp";
-const paths = require("../paths");
+import paths from "../paths.cjs";
-require("./translations");
+import "./translations.js";
 
 gulp.task(
   "clean",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
+  gulp.parallel("clean-translations", async () =>
-    return del([paths.app_output_root, paths.build_dir]);
+    deleteSync([paths.app_output_root, paths.build_dir])
-  })
+  )
 );
 
 gulp.task(
   "clean-demo",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
+  gulp.parallel("clean-translations", async () =>
-    return del([paths.demo_output_root, paths.build_dir]);
+    deleteSync([paths.demo_output_root, paths.build_dir])
-  })
+  )
 );
 
 gulp.task(
   "clean-cast",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
+  gulp.parallel("clean-translations", async () =>
-    return del([paths.cast_output_root, paths.build_dir]);
+    deleteSync([paths.cast_output_root, paths.build_dir])
-  })
+  )
 );
 
-gulp.task("clean-hassio", function cleanOutputAndBuildDir() {
+gulp.task("clean-hassio", async () =>
-  return del([paths.hassio_output_root, paths.build_dir]);
+  deleteSync([paths.hassio_output_root, paths.build_dir])
-});
+);
 
 gulp.task(
   "clean-gallery",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
+  gulp.parallel("clean-translations", async () =>
-    return del([paths.gallery_output_root, paths.build_dir]);
+    deleteSync([
-  })
+      paths.gallery_output_root,
+      paths.gallery_build,
+      paths.build_dir,
+    ])
+  )
 );

build-scripts/gulp/compress.js

@@ -1,10 +1,10 @@
 // Tasks to compress
 
-const gulp = require("gulp");
+import gulp from "gulp";
-const zopfli = require("gulp-zopfli-green");
+import zopfli from "gulp-zopfli-green";
-const merge = require("merge-stream");
+import merge from "merge-stream";
-const path = require("path");
+import path from "path";
-const paths = require("../paths");
+import paths from "../paths.cjs";
 
 const zopfliOptions = { threshold: 150 };
 

build-scripts/gulp/demo.js

@@ -1,16 +1,13 @@
-// Run demo develop mode
+import gulp from "gulp";
-const gulp = require("gulp");
+import env from "../env.cjs";
-
+import "./clean.js";
-const env = require("../env");
+import "./entry-html.js";
-
+import "./gather-static.js";
-require("./clean.js");
+import "./gen-icons-json.js";
-require("./translations.js");
+import "./rollup.js";
-require("./gen-icons-json.js");
+import "./service-worker.js";
-require("./gather-static.js");
+import "./translations.js";
-require("./webpack.js");
+import "./webpack.js";
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
 
 gulp.task(
   "develop-demo",
@@ -20,7 +17,12 @@ 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-pages-demo-dev",
+      "build-translations",
+      "build-locale-data"
+    ),
     "copy-static-demo",
     env.useRollup() ? "rollup-dev-server-demo" : "webpack-dev-server-demo"
   )
@@ -35,9 +37,9 @@ 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"
+    "gen-pages-demo-prod"
   )
 );

build-scripts/gulp/download-translations.js

@@ -0,0 +1,69 @@
+import fs from "fs/promises";
+import gulp from "gulp";
+import mapStream from "map-stream";
+
+const inDirFrontend = "translations/frontend";
+const inDirBackend = "translations/backend";
+const srcMeta = "src/translations/translationMetadata.json";
+const encoding = "utf8";
+
+function hasHtml(data) {
+  return /<[a-z][\s\S]*>/i.test(data);
+}
+
+function recursiveCheckHasHtml(file, data, errors, recKey) {
+  Object.keys(data).forEach(function (key) {
+    if (typeof data[key] === "object") {
+      const nextRecKey = recKey ? `${recKey}.${key}` : key;
+      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
+    } else if (hasHtml(data[key])) {
+      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
+    }
+  });
+}
+
+function checkHtml() {
+  const errors = [];
+
+  return mapStream(function (file, cb) {
+    const content = file.contents;
+    let error;
+    if (content) {
+      if (hasHtml(String(content))) {
+        const data = JSON.parse(String(content));
+        recursiveCheckHasHtml(file, data, errors);
+        if (errors.length > 0) {
+          error = errors.join("\r\n");
+        }
+      }
+    }
+    cb(error, file);
+  });
+}
+
+// Backend translations do not currently pass HTML check so are excluded here for now
+gulp.task("check-translations-html", function () {
+  return gulp.src([`${inDirFrontend}/*.json`]).pipe(checkHtml());
+});
+
+gulp.task("check-all-files-exist", async function () {
+  const file = await fs.readFile(srcMeta, { encoding });
+  const meta = JSON.parse(file);
+  const writings = [];
+  Object.keys(meta).forEach((lang) => {
+    writings.push(
+      fs.writeFile(`${inDirFrontend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      }),
+      fs.writeFile(`${inDirBackend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      })
+    );
+  });
+  await Promise.allSettled(writings);
+});
+
+gulp.task(
+  "check-downloaded-translations",
+  gulp.series("check-translations-html", "check-all-files-exist")
+);

build-scripts/gulp/download_translations.js

@@ -1,95 +0,0 @@
-const del = require("del");
-const gulp = require("gulp");
-const fs = require("fs");
-const mapStream = require("map-stream");
-
-const inDirFrontend = "translations/frontend";
-const inDirBackend = "translations/backend";
-const downloadDir = "translations/downloads";
-const srcMeta = "src/translations/translationMetadata.json";
-
-const encoding = "utf8";
-
-const tasks = [];
-
-function hasHtml(data) {
-  return /<[a-z][\s\S]*>/i.test(data);
-}
-
-function recursiveCheckHasHtml(file, data, errors, recKey) {
-  Object.keys(data).forEach(function (key) {
-    if (typeof data[key] === "object") {
-      const nextRecKey = recKey ? `${recKey}.${key}` : key;
-      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
-    } else if (hasHtml(data[key])) {
-      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
-    }
-  });
-}
-
-function checkHtml() {
-  const errors = [];
-
-  return mapStream(function (file, cb) {
-    const content = file.contents;
-    let error;
-    if (content) {
-      if (hasHtml(String(content))) {
-        const data = JSON.parse(String(content));
-        recursiveCheckHasHtml(file, data, errors);
-        if (errors.length > 0) {
-          error = errors.join("\r\n");
-        }
-      }
-    }
-    cb(error, file);
-  });
-}
-
-let taskName = "clean-downloaded-translations";
-gulp.task(taskName, function () {
-  return del([`${downloadDir}/**`]);
-});
-tasks.push(taskName);
-
-taskName = "check-translations-html";
-gulp.task(taskName, function () {
-  return gulp.src(`${downloadDir}/*.json`).pipe(checkHtml());
-});
-tasks.push(taskName);
-
-taskName = "check-all-files-exist";
-gulp.task(taskName, function () {
-  const file = fs.readFileSync(srcMeta, { encoding });
-  const meta = JSON.parse(file);
-  Object.keys(meta).forEach((lang) => {
-    if (!fs.existsSync(`${inDirFrontend}/${lang}.json`)) {
-      fs.writeFileSync(`${inDirFrontend}/${lang}.json`, JSON.stringify({}));
-    }
-    if (!fs.existsSync(`${inDirBackend}/${lang}.json`)) {
-      fs.writeFileSync(`${inDirBackend}/${lang}.json`, JSON.stringify({}));
-    }
-  });
-  return Promise.resolve();
-});
-tasks.push(taskName);
-
-taskName = "move-downloaded-translations";
-gulp.task(taskName, function () {
-  return gulp.src(`${downloadDir}/*.json`).pipe(gulp.dest(inDirFrontend));
-});
-tasks.push(taskName);
-
-taskName = "check-downloaded-translations";
-gulp.task(
-  taskName,
-  gulp.series(
-    "check-translations-html",
-    "move-downloaded-translations",
-    "check-all-files-exist",
-    "clean-downloaded-translations"
-  )
-);
-tasks.push(taskName);
-
-module.exports = tasks;

build-scripts/gulp/entry-html.js

@@ -1,304 +1,233 @@
 // Tasks to generate entry HTML
-/* eslint-disable import/no-dynamic-require */
-/* eslint-disable global-require */
-const gulp = require("gulp");
-const fs = require("fs-extra");
-const path = require("path");
-const template = require("lodash.template");
-const minify = require("html-minifier").minify;
-const paths = require("../paths.js");
-const env = require("../env.js");
 
-const templatePath = (tpl) =>
+import fs from "fs-extra";
-  path.resolve(paths.polymer_dir, "src/html/", `${tpl}.html.template`);
+import gulp from "gulp";
+import { minify } from "html-minifier-terser";
+import template from "lodash.template";
+import path from "path";
+import { htmlMinifierOptions, terserOptions } from "../bundle.cjs";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
 
-const readFile = (pth) => fs.readFileSync(pth).toString();
+const renderTemplate = (templateFile, data = {}) => {
-
+  const compiled = template(
-const renderTemplate = (pth, data = {}, pathFunc = templatePath) => {
+    fs.readFileSync(templateFile, { encoding: "utf-8" })
-  const compiled = template(readFile(pathFunc(pth)));
+  );
   return compiled({
     ...data,
     useRollup: env.useRollup(),
-    renderTemplate,
+    useWDS: env.useWDS(),
+    // Resolve any child/nested templates relative to the parent and pass the same data
+    renderTemplate: (childTemplate) =>
+      renderTemplate(
+        path.resolve(path.dirname(templateFile), childTemplate),
+        data
+      ),
   });
 };
 
-const renderDemoTemplate = (pth, data = {}) =>
+const WRAP_TAGS = { ".js": "script", ".css": "style" };
-  renderTemplate(pth, data, (tpl) =>
+
-    path.resolve(paths.demo_dir, "src/html/", `${tpl}.html.template`)
+const minifyHtml = (content, ext) => {
+  const wrapTag = WRAP_TAGS[ext] || "";
+  const begTag = wrapTag && `<${wrapTag}>`;
+  const endTag = wrapTag && `</${wrapTag}>`;
+  return minify(begTag + content + endTag, {
+    ...htmlMinifierOptions,
+    conservativeCollapse: false,
+    minifyJS: terserOptions({
+      latestBuild: false, // Shared scripts should be ES5
+      isTestBuild: true, // Don't need source maps
+    }),
+  }).then((wrapped) =>
+    wrapTag ? wrapped.slice(begTag.length, -endTag.length) : wrapped
   );
+};
 
-const renderCastTemplate = (pth, data = {}) =>
+// Function to generate a dev task for each project's configuration
-  renderTemplate(pth, data, (tpl) =>
+// Note Currently WDS paths are hard-coded to only work for app
-    path.resolve(paths.cast_dir, "src/html/", `${tpl}.html.template`)
+const genPagesDevTask =
-  );
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    useWDS = false,
+    inputSub = "src/html",
+    publicRoot = ""
+  ) =>
+  async () => {
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        path.resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          latestEntryJS: entries.map((entry) =>
+            useWDS
+              ? `http://localhost:8000/src/entrypoints/${entry}.ts`
+              : `${publicRoot}/frontend_latest/${entry}.js`
+          ),
+          es5EntryJS: entries.map(
+            (entry) => `${publicRoot}/frontend_es5/${entry}.js`
+          ),
+          latestCustomPanelJS: useWDS
+            ? "http://localhost:8000/src/entrypoints/custom-panel.ts"
+            : `${publicRoot}/frontend_latest/custom-panel.js`,
+          es5CustomPanelJS: `${publicRoot}/frontend_es5/custom-panel.js`,
+        }
+      );
+      fs.outputFileSync(path.resolve(outputRoot, page), content);
+    }
+  };
 
-const renderGalleryTemplate = (pth, data = {}) =>
+// Same as previous but for production builds
-  renderTemplate(pth, data, (tpl) =>
+// (includes minification and hashed file names from manifest)
-    path.resolve(paths.gallery_dir, "src/html/", `${tpl}.html.template`)
+const genPagesProdTask =
-  );
+  (
-
+    pageEntries,
-const minifyHtml = (content) =>
+    inputRoot,
-  minify(content, {
+    outputRoot,
-    collapseWhitespace: true,
+    outputLatest,
-    minifyJS: true,
+    outputES5,
-    minifyCSS: true,
+    inputSub = "src/html"
-    removeComments: true,
+  ) =>
-  });
+  async () => {
-
+    const latestManifest = fs.readJsonSync(
-const PAGES = ["onboarding", "authorize"];
+      path.resolve(outputLatest, "manifest.json")
-
-gulp.task("gen-pages-dev", (done) => {
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: `/frontend_latest/${page}.js`,
-
-      es5PageJS: `/frontend_es5/${page}.js`,
-    });
-
-    fs.outputFileSync(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      content
     );
-  }
+    const es5Manifest = outputES5
-  done();
+      ? fs.readJsonSync(path.resolve(outputES5, "manifest.json"))
-});
+      : {};
+    const minifiedHTML = [];
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        path.resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          latestEntryJS: entries.map((entry) => latestManifest[`${entry}.js`]),
+          es5EntryJS: entries.map((entry) => es5Manifest[`${entry}.js`]),
+          latestCustomPanelJS: latestManifest["custom-panel.js"],
+          es5CustomPanelJS: es5Manifest["custom-panel.js"],
+        }
+      );
+      minifiedHTML.push(
+        minifyHtml(content, path.extname(page)).then((minified) =>
+          fs.outputFileSync(path.resolve(outputRoot, page), minified)
+        )
+      );
+    }
+    await Promise.all(minifiedHTML);
+  };
 
-gulp.task("gen-pages-prod", (done) => {
+// Map HTML pages to their required entrypoints
-  const latestManifest = require(path.resolve(
+const APP_PAGE_ENTRIES = {
+  "authorize.html": ["authorize"],
+  "onboarding.html": ["onboarding"],
+  "index.html": ["core", "app"],
+};
+
+gulp.task(
+  "gen-pages-app-dev",
+  genPagesDevTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
+    env.useWDS()
+  )
+);
+
+gulp.task(
+  "gen-pages-app-prod",
+  genPagesProdTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
     paths.app_output_latest,
-    "manifest.json"
+    paths.app_output_es5
-  ));
+  )
-  const es5Manifest = require(path.resolve(
+);
-    paths.app_output_es5,
-    "manifest.json"
-  ));
 
-  for (const page of PAGES) {
+const CAST_PAGE_ENTRIES = {
-    const content = renderTemplate(page, {
+  "faq.html": ["launcher"],
-      latestPageJS: latestManifest[`${page}.js`],
+  "index.html": ["launcher"],
+  "media.html": ["media"],
+  "receiver.html": ["receiver"],
+};
 
-      es5PageJS: es5Manifest[`${page}.js`],
+gulp.task(
-    });
+  "gen-pages-cast-dev",
+  genPagesDevTask(CAST_PAGE_ENTRIES, paths.cast_dir, paths.cast_output_root)
+);
 
-    fs.outputFileSync(
+gulp.task(
-      path.resolve(paths.app_output_root, `${page}.html`),
+  "gen-pages-cast-prod",
-      minifyHtml(content)
+  genPagesProdTask(
-    );
+    CAST_PAGE_ENTRIES,
-  }
+    paths.cast_dir,
-  done();
+    paths.cast_output_root,
-});
-
-gulp.task("gen-index-app-dev", (done) => {
-  const content = renderTemplate("index", {
-    latestAppJS: "/frontend_latest/app.js",
-    latestCoreJS: "/frontend_latest/core.js",
-    latestCustomPanelJS: "/frontend_latest/custom-panel.js",
-
-    es5AppJS: "/frontend_es5/app.js",
-    es5CoreJS: "/frontend_es5/core.js",
-    es5CustomPanelJS: "/frontend_es5/custom-panel.js",
-  }).replace(/#THEMEC/g, "{{ theme_color }}");
-
-  fs.outputFileSync(path.resolve(paths.app_output_root, "index.html"), content);
-  done();
-});
-
-gulp.task("gen-index-app-prod", (done) => {
-  const latestManifest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
-  const content = renderTemplate("index", {
-    latestAppJS: latestManifest["app.js"],
-    latestCoreJS: latestManifest["core.js"],
-    latestCustomPanelJS: latestManifest["custom-panel.js"],
-
-    es5AppJS: es5Manifest["app.js"],
-    es5CoreJS: es5Manifest["core.js"],
-    es5CustomPanelJS: es5Manifest["custom-panel.js"],
-  });
-  const minified = minifyHtml(content).replace(/#THEMEC/g, "{{ theme_color }}");
-
-  fs.outputFileSync(
-    path.resolve(paths.app_output_root, "index.html"),
-    minified
-  );
-  done();
-});
-
-gulp.task("gen-index-cast-dev", (done) => {
-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: "/frontend_latest/receiver.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
-
-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-cast-prod", (done) => {
-  const latestManifest = require(path.resolve(
     paths.cast_output_latest,
-    "manifest.json"
+    paths.cast_output_es5
-  ));
+  )
-  const es5Manifest = require(path.resolve(
+);
-    paths.cast_output_es5,
-    "manifest.json"
-  ));
 
-  const contentReceiver = renderCastTemplate("receiver", {
+const DEMO_PAGE_ENTRIES = { "index.html": ["main"] };
-    latestReceiverJS: latestManifest["receiver.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
 
-  const contentFAQ = renderCastTemplate("launcher-faq", {
+gulp.task(
-    latestLauncherJS: latestManifest["launcher.js"],
+  "gen-pages-demo-dev",
-    es5LauncherJS: es5Manifest["launcher.js"],
+  genPagesDevTask(DEMO_PAGE_ENTRIES, paths.demo_dir, paths.demo_output_root)
-  });
+);
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
 
-  const contentLauncher = renderCastTemplate("launcher", {
+gulp.task(
-    latestLauncherJS: latestManifest["launcher.js"],
+  "gen-pages-demo-prod",
-    es5LauncherJS: es5Manifest["launcher.js"],
+  genPagesProdTask(
-  });
+    DEMO_PAGE_ENTRIES,
-  fs.outputFileSync(
+    paths.demo_dir,
-    path.resolve(paths.cast_output_root, "index.html"),
+    paths.demo_output_root,
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-dev", (done) => {
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: "/frontend_latest/main.js",
-
-    es5DemoJS: "/frontend_es5/main.js",
-  });
-
-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    content
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-prod", (done) => {
-  const latestManifest = require(path.resolve(
     paths.demo_output_latest,
-    "manifest.json"
+    paths.demo_output_es5
-  ));
+  )
-  const es5Manifest = require(path.resolve(
+);
-    paths.demo_output_es5,
-    "manifest.json"
-  ));
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: latestManifest["main.js"],
 
-    es5DemoJS: es5Manifest["main.js"],
+const GALLERY_PAGE_ENTRIES = { "index.html": ["entrypoint"] };
-  });
-  const minified = minifyHtml(content);
 
-  fs.outputFileSync(
+gulp.task(
-    path.resolve(paths.demo_output_root, "index.html"),
+  "gen-pages-gallery-dev",
-    minified
+  genPagesDevTask(
-  );
+    GALLERY_PAGE_ENTRIES,
-  done();
+    paths.gallery_dir,
-});
+    paths.gallery_output_root
+  )
+);
 
-gulp.task("gen-index-gallery-dev", (done) => {
+gulp.task(
-  const content = renderGalleryTemplate("index", {
+  "gen-pages-gallery-prod",
-    latestGalleryJS: "./frontend_latest/entrypoint.js",
+  genPagesProdTask(
-  });
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root,
+    paths.gallery_output_latest
+  )
+);
 
-  fs.outputFileSync(
+const HASSIO_PAGE_ENTRIES = { "entrypoint.js": ["entrypoint"] };
-    path.resolve(paths.gallery_output_root, "index.html"),
-    content
-  );
-  done();
-});
 
-gulp.task("gen-index-gallery-prod", (done) => {
+gulp.task(
-  const latestManifest = require(path.resolve(
+  "gen-pages-hassio-dev",
-    paths.gallery_output_latest,
+  genPagesDevTask(
-    "manifest.json"
+    HASSIO_PAGE_ENTRIES,
-  ));
+    paths.hassio_dir,
-  const content = renderGalleryTemplate("index", {
+    paths.hassio_output_root,
-    latestGalleryJS: latestManifest["entrypoint.js"],
+    undefined,
-  });
+    "src",
-  const minified = minifyHtml(content);
+    paths.hassio_publicPath
+  )
+);
 
-  fs.outputFileSync(
+gulp.task(
-    path.resolve(paths.gallery_output_root, "index.html"),
+  "gen-pages-hassio-prod",
-    minified
+  genPagesProdTask(
-  );
+    HASSIO_PAGE_ENTRIES,
-  done();
+    paths.hassio_dir,
-});
+    paths.hassio_output_root,
-
-gulp.task("gen-index-hassio-dev", async () => {
-  writeHassioEntrypoint(
-    `${paths.hassio_publicPath}/frontend_latest/entrypoint.js`,
-    `${paths.hassio_publicPath}/frontend_es5/entrypoint.js`
-  );
-});
-
-gulp.task("gen-index-hassio-prod", async () => {
-  const latestManifest = require(path.resolve(
     paths.hassio_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
     paths.hassio_output_es5,
-    "manifest.json"
+    "src"
-  ));
+  )
-  writeHassioEntrypoint(
+);
-    latestManifest["entrypoint.js"],
-    es5Manifest["entrypoint.js"]
-  );
-});
-
-function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
-  fs.mkdirSync(paths.hassio_output_root, { recursive: true });
-  fs.writeFileSync(
-    path.resolve(paths.hassio_output_root, "entrypoint.js"),
-    `
-try {
-  new Function("import('${latestEntrypoint}')")();
-} catch (err) {
-  var el = document.createElement('script');
-  el.src = '${es5Entrypoint}';
-  document.body.appendChild(el);
-}
-  `,
-    { encoding: "utf-8" }
-  );
-}

build-scripts/gulp/fetch-nightly-translations.js

@@ -0,0 +1,171 @@
+// Task to download the latest Lokalise translations from the nightly workflow artifacts
+
+import { createOAuthDeviceAuth } from "@octokit/auth-oauth-device";
+import { retry } from "@octokit/plugin-retry";
+import { Octokit } from "@octokit/rest";
+import { deleteAsync } from "del";
+import { mkdir, readFile, writeFile } from "fs/promises";
+import gulp from "gulp";
+import jszip from "jszip";
+import path from "path";
+import process from "process";
+import tar from "tar";
+
+const MAX_AGE = 24; // hours
+const OWNER = "home-assistant";
+const REPO = "frontend";
+const WORKFLOW_NAME = "nightly.yaml";
+const ARTIFACT_NAME = "translations";
+const CLIENT_ID = "Iv1.3914e28cb27834d1";
+const EXTRACT_DIR = "translations";
+const TOKEN_FILE = path.posix.join(EXTRACT_DIR, "token.json");
+const ARTIFACT_FILE = path.posix.join(EXTRACT_DIR, "artifact.json");
+
+let allowTokenSetup = false;
+gulp.task("allow-setup-fetch-nightly-translations", (done) => {
+  allowTokenSetup = true;
+  done();
+});
+
+gulp.task("fetch-nightly-translations", async function () {
+  // Skip all when environment flag is set (assumes translations are already in place)
+  if (process.env?.SKIP_FETCH_NIGHTLY_TRANSLATIONS) {
+    console.log("Skipping fetch due to environment signal");
+    return;
+  }
+
+  // Read current translations artifact info if it exists,
+  // and stop if they are not old enough
+  let currentArtifact;
+  try {
+    currentArtifact = JSON.parse(await readFile(ARTIFACT_FILE, "utf-8"));
+    const currentAge =
+      (Date.now() - Date.parse(currentArtifact.created_at)) / 3600000;
+    if (currentAge < MAX_AGE) {
+      console.log(
+        "Keeping current translations (only %s hours old)",
+        currentAge.toFixed(1)
+      );
+      return;
+    }
+  } catch {
+    currentArtifact = null;
+  }
+
+  // To store file writing promises
+  const createExtractDir = mkdir(EXTRACT_DIR, { recursive: true });
+  const writings = [];
+
+  // Authenticate to GitHub using GitHub action token if it exists,
+  // otherwise look for a saved user token or generate a new one if none
+  let tokenAuth;
+  if (process.env.GITHUB_TOKEN) {
+    tokenAuth = { token: process.env.GITHUB_TOKEN };
+  } else {
+    try {
+      tokenAuth = JSON.parse(await readFile(TOKEN_FILE, "utf-8"));
+    } catch {
+      if (!allowTokenSetup) {
+        console.log("No token found so  build wil continue with English only");
+        return;
+      }
+      const auth = createOAuthDeviceAuth({
+        clientType: "github-app",
+        clientId: CLIENT_ID,
+        onVerification: (verification) => {
+          console.log(
+            "Task needs to authenticate to GitHub to fetch the translations from nightly workflow\n" +
+              "Please go to %s to authorize this task\n" +
+              "\nEnter user code: %s\n\n" +
+              "This code will expire in %s minutes\n" +
+              "Task will automatically continue after authorization and token will be saved for future use",
+            verification.verification_uri,
+            verification.user_code,
+            (verification.expires_in / 60).toFixed(0)
+          );
+        },
+      });
+      tokenAuth = await auth({ type: "oauth" });
+      writings.push(
+        createExtractDir.then(
+          writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
+        )
+      );
+    }
+  }
+
+  // Authenticate with token and request workflow runs from GitHub
+  console.log("Fetching new translations...");
+  const octokit = new (Octokit.plugin(retry))({
+    userAgent: "Fetch Nightly Translations",
+    auth: tokenAuth.token,
+  });
+
+  const workflowRunsResponse = await octokit.rest.actions.listWorkflowRuns({
+    owner: OWNER,
+    repo: REPO,
+    workflow_id: WORKFLOW_NAME,
+    status: "success",
+    event: "schedule",
+    per_page: 1,
+    exclude_pull_requests: true,
+  });
+  if (workflowRunsResponse.data.total_count === 0) {
+    throw Error("No successful nightly workflow runs found");
+  }
+  const latestNightlyRun = workflowRunsResponse.data.workflow_runs[0];
+
+  // Stop if current is already the latest, otherwise Find the translations artifact
+  if (currentArtifact?.workflow_run.id === latestNightlyRun.id) {
+    console.log("Stopping because current translations are still the latest");
+    return;
+  }
+  const latestArtifact = (
+    await octokit.actions.listWorkflowRunArtifacts({
+      owner: OWNER,
+      repo: REPO,
+      run_id: latestNightlyRun.id,
+    })
+  ).data.artifacts.find((artifact) => artifact.name === ARTIFACT_NAME);
+  if (!latestArtifact) {
+    throw Error("Latest nightly workflow run has no translations artifact");
+  }
+  writings.push(
+    createExtractDir.then(
+      writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
+    )
+  );
+
+  // Remove the current translations
+  const deleteCurrent = Promise.all(writings).then(
+    deleteAsync([`${EXTRACT_DIR}/*`, `!${ARTIFACT_FILE}`, `!${TOKEN_FILE}`])
+  );
+
+  // Get the download URL and follow the redirect to download (stored as ArrayBuffer)
+  const downloadResponse = await octokit.actions.downloadArtifact({
+    owner: OWNER,
+    repo: REPO,
+    artifact_id: latestArtifact.id,
+    archive_format: "zip",
+  });
+  if (downloadResponse.status !== 200) {
+    throw Error("Failure downloading translations artifact");
+  }
+
+  // Artifact is a tarball, but GitHub adds it to a zip file
+  console.log("Unpacking downloaded translations...");
+  const zip = await jszip.loadAsync(downloadResponse.data);
+  await deleteCurrent;
+  const extractStream = zip.file(/.*/)[0].nodeStream().pipe(tar.extract());
+  await new Promise((resolve, reject) => {
+    extractStream.on("close", resolve).on("error", reject);
+  });
+});
+
+gulp.task(
+  "setup-and-fetch-nightly-translations",
+  gulp.series(
+    "allow-setup-fetch-nightly-translations",
+    "fetch-nightly-translations"
+  )
+);

build-scripts/gulp/gallery.js

@@ -1,40 +1,141 @@
-// Run demo develop mode
+import fs from "fs";
-const gulp = require("gulp");
+import { glob } from "glob";
-const fs = require("fs");
+import gulp from "gulp";
-const path = require("path");
+import yaml from "js-yaml";
+import { marked } from "marked";
+import path from "path";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";
 
-const env = require("../env");
+gulp.task("gather-gallery-pages", async function gatherPages() {
-const paths = require("../paths");
+  const pageDir = path.resolve(paths.gallery_dir, "src/pages");
-
+  const files = await glob(path.resolve(pageDir, "**/*"));
-require("./clean.js");
-require("./translations.js");
-require("./gen-icons-json.js");
-require("./gather-static.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
-
-gulp.task("gather-gallery-demos", async function gatherDemos() {
-  const files = await fs.promises.readdir(
-    path.resolve(paths.gallery_dir, "src/demos")
-  );
-
-  let content = "export const DEMOS = {\n";
-
-  for (const file of files) {
-    const demoId = path.basename(file, ".ts");
-    const demoPath = "../src/demos/" + demoId;
-    content += `  "${demoId}": () => import("${demoPath}"),\n`;
-  }
-
-  content += "};";
 
   const galleryBuild = path.resolve(paths.gallery_dir, "build");
-
   fs.mkdirSync(galleryBuild, { recursive: true });
+
+  let content = "export const PAGES = {\n";
+
+  const processed = new Set();
+
+  for (const file of files) {
+    if (fs.lstatSync(file).isDirectory()) {
+      continue;
+    }
+    const pageId = file.substring(pageDir.length + 1, file.lastIndexOf("."));
+
+    if (processed.has(pageId)) {
+      continue;
+    }
+    processed.add(pageId);
+
+    const [category] = pageId.split("/", 2);
+
+    const demoFile = path.resolve(pageDir, `${pageId}.ts`);
+    const descriptionFile = path.resolve(pageDir, `${pageId}.markdown`);
+    const hasDemo = fs.existsSync(demoFile);
+    let hasDescription = fs.existsSync(descriptionFile);
+    let metadata = {};
+    if (hasDescription) {
+      let descriptionContent = fs.readFileSync(descriptionFile, "utf-8");
+
+      if (descriptionContent.startsWith("---")) {
+        const metadataEnd = descriptionContent.indexOf("---", 3);
+        metadata = yaml.load(descriptionContent.substring(3, metadataEnd));
+        descriptionContent = descriptionContent
+          .substring(metadataEnd + 3)
+          .trim();
+      }
+
+      // If description is just metadata
+      if (descriptionContent === "") {
+        hasDescription = false;
+      } else {
+        descriptionContent = marked(descriptionContent).replace(/`/g, "\\`");
+        fs.mkdirSync(path.resolve(galleryBuild, category), { recursive: true });
+        fs.writeFileSync(
+          path.resolve(galleryBuild, `${pageId}-description.ts`),
+          `
+          import {html} from "lit";
+          export default html\`${descriptionContent}\`
+          `
+        );
+      }
+    }
+    content += `  "${pageId}": {
+      metadata: ${JSON.stringify(metadata)},
+      ${
+        hasDescription
+          ? `description: () => import("./${pageId}-description").then(m => m.default),`
+          : ""
+      }
+      ${hasDemo ? `demo: () => import("../src/pages/${pageId}")` : ""}
+
+    },\n`;
+  }
+
+  content += "};\n";
+
+  // Generate sidebar
+  const sidebarPath = path.resolve(paths.gallery_dir, "sidebar.js");
+  const sidebar = (await import(sidebarPath)).default;
+
+  const pagesToProcess = {};
+  for (const key of processed) {
+    const [category, page] = key.split("/", 2);
+    if (!(category in pagesToProcess)) {
+      pagesToProcess[category] = new Set();
+    }
+    pagesToProcess[category].add(page);
+  }
+
+  for (const group of Object.values(sidebar)) {
+    const toProcess = pagesToProcess[group.category];
+    delete pagesToProcess[group.category];
+
+    if (!toProcess) {
+      console.error("Unknown category", group.category);
+      if (!group.pages) {
+        group.pages = [];
+      }
+      continue;
+    }
+
+    // Any pre-defined groups will not be sorted.
+    if (group.pages) {
+      for (const page of group.pages) {
+        if (!toProcess.delete(page)) {
+          console.error("Found unreferenced demo", page);
+        }
+      }
+    } else {
+      group.pages = [];
+    }
+    for (const page of Array.from(toProcess).sort()) {
+      group.pages.push(page);
+    }
+  }
+
+  for (const [category, pages] of Object.entries(pagesToProcess)) {
+    sidebar.push({
+      category,
+      header: category,
+      pages: Array.from(pages).sort(),
+    });
+  }
+
+  content += `export const SIDEBAR = ${JSON.stringify(sidebar, null, 2)};\n`;
+
   fs.writeFileSync(
-    path.resolve(galleryBuild, "import-demos.ts"),
+    path.resolve(galleryBuild, "import-pages.ts"),
     content,
     "utf-8"
   );
@@ -51,11 +152,25 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
-      "gather-gallery-demos"
+      "build-locale-data",
+      "gather-gallery-pages"
     ),
     "copy-static-gallery",
-    "gen-index-gallery-dev",
+    "gen-pages-gallery-dev",
-    env.useRollup() ? "rollup-dev-server-gallery" : "webpack-dev-server-gallery"
+    gulp.parallel(
+      env.useRollup()
+        ? "rollup-dev-server-gallery"
+        : "webpack-dev-server-gallery",
+      async function watchMarkdownFiles() {
+        gulp.watch(
+          [
+            path.resolve(paths.gallery_dir, "src/pages/**/*.markdown"),
+            path.resolve(paths.gallery_dir, "sidebar.js"),
+          ],
+          gulp.series("gather-gallery-pages")
+        );
+      }
+    )
   )
 );
 
@@ -70,10 +185,11 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
-      "gather-gallery-demos"
+      "build-locale-data",
+      "gather-gallery-pages"
     ),
     "copy-static-gallery",
     env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",
-    "gen-index-gallery-prod"
+    "gen-pages-gallery-prod"
   )
 );

build-scripts/gulp/gather-static.js

@@ -1,10 +1,9 @@
 // Gulp task to gather all static files.
 
-const gulp = require("gulp");
+import fs from "fs-extra";
-const path = require("path");
+import gulp from "gulp";
-const cpx = require("cpx");
+import path from "path";
-const fs = require("fs-extra");
+import paths from "../paths.cjs";
-const paths = require("../paths");
 
 const npmPath = (...parts) =>
   path.resolve(paths.polymer_dir, "node_modules", ...parts);
@@ -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) =>
+const genStaticPath =
-  path.resolve(staticDir, ...parts);
+  (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);
 
@@ -62,12 +70,20 @@ function copyLoaderJS(staticDir) {
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
-  cpx.copySync(
+  fs.copySync(
-    npmPath("roboto-fontface/fonts/roboto/*.woff2"),
+    npmPath("roboto-fontface/fonts/roboto/"),
-    staticPath("fonts/roboto")
+    staticPath("fonts/roboto/"),
+    {
+      filter: (src) => !src.includes(".") || src.endsWith(".woff2"),
+    }
   );
 }
 
+function copyQrScannerWorker(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+  copyFileDir(npmPath("qr-scanner/qr-scanner-worker.min.js"), staticPath("js"));
+}
+
 function copyMapPanel(staticDir) {
   const staticPath = genStaticPath(staticDir);
   copyFileDir(
@@ -80,11 +96,27 @@ 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-static-supervisor", async () => {
+  const staticDir = paths.hassio_output_static;
+  copyLocaleData(staticDir);
+  copyFonts(staticDir);
+});
+
 gulp.task("copy-static-app", async () => {
   const staticDir = paths.app_output_static;
   // Basic static files
@@ -94,10 +126,14 @@ gulp.task("copy-static-app", async () => {
   copyPolyfills(staticDir);
   copyFonts(staticDir);
   copyTranslations(staticDir);
+  copyLocaleData(staticDir);
   copyMdiIcons(staticDir);
 
   // Panel assets
   copyMapPanel(staticDir);
+
+  // Qr Scanner assets
+  copyQrScannerWorker(staticDir);
 });
 
 gulp.task("copy-static-demo", async () => {
@@ -114,6 +150,7 @@ 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 +165,7 @@ 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 +181,6 @@ 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/gen-icons-json.js

@@ -1,17 +1,15 @@
-const gulp = require("gulp");
+import fs from "fs";
-const path = require("path");
+import gulp from "gulp";
-const fs = require("fs");
+import hash from "object-hash";
-const hash = require("object-hash");
+import path from "path";
+import paths from "../paths.cjs";
 
-const ICON_PACKAGE_PATH = path.resolve(
+const ICON_PACKAGE_PATH = path.resolve("node_modules/@mdi/svg/");
-  __dirname,
-  "../../node_modules/@mdi/svg/"
-);
 const META_PATH = path.resolve(ICON_PACKAGE_PATH, "meta.json");
 const PACKAGE_PATH = path.resolve(ICON_PACKAGE_PATH, "package.json");
 const ICON_PATH = path.resolve(ICON_PACKAGE_PATH, "svg");
-const OUTPUT_DIR = path.resolve(__dirname, "../../build/mdi");
+const OUTPUT_DIR = path.resolve(paths.build_dir, "mdi");
-const REMOVED_ICONS_PATH = path.resolve(__dirname, "../removedIcons.json");
+const REMOVED_ICONS_PATH = new URL("../removedIcons.json", import.meta.url);
 
 const encoding = "utf8";
 
@@ -22,17 +20,40 @@ const getMeta = () => {
     const svg = fs.readFileSync(`${ICON_PATH}/${icon.name}.svg`, {
       encoding,
     });
-    return { path: svg.match(/ d="([^"]+)"/)[1], name: icon.name };
+    return {
+      path: svg.match(/ d="([^"]+)"/)[1],
+      name: icon.name,
+      tags: icon.tags,
+      aliases: icon.aliases,
+    };
   });
 };
 
 const addRemovedMeta = (meta) => {
   const file = fs.readFileSync(REMOVED_ICONS_PATH, { encoding });
   const removed = JSON.parse(file);
-  const combinedMeta = [...meta, ...removed];
+  const removedMeta = removed.map((removeIcon) => ({
+    path: removeIcon.path,
+    name: removeIcon.name,
+    tags: [],
+    aliases: [],
+  }));
+  const combinedMeta = [...meta, ...removedMeta];
   return combinedMeta.sort((a, b) => a.name.localeCompare(b.name));
 };
 
+const homeAutomationTag = "Home Automation";
+
+const orderMeta = (meta) => {
+  const homeAutomationMeta = meta.filter((icon) =>
+    icon.tags.includes(homeAutomationTag)
+  );
+  const otherMeta = meta.filter(
+    (icon) => !icon.tags.includes(homeAutomationTag)
+  );
+  return [...homeAutomationMeta, ...otherMeta];
+};
+
 const splitBySize = (meta) => {
   const chunks = [];
   const CHUNK_SIZE = 50000;
@@ -77,8 +98,10 @@ const findDifferentiator = (curString, prevString) => {
 };
 
 gulp.task("gen-icons-json", (done) => {
-  const meta = addRemovedMeta(getMeta());
+  const meta = getMeta();
-  const split = splitBySize(meta);
+
+  const metaAndRemoved = addRemovedMeta(meta);
+  const split = splitBySize(metaAndRemoved);
 
   if (!fs.existsSync(OUTPUT_DIR)) {
     fs.mkdirSync(OUTPUT_DIR, { recursive: true });
@@ -109,12 +132,34 @@ gulp.task("gen-icons-json", (done) => {
   });
 
   const file = fs.readFileSync(PACKAGE_PATH, { encoding });
-  const package = JSON.parse(file);
+  const packageMeta = JSON.parse(file);
 
   fs.writeFileSync(
     path.resolve(OUTPUT_DIR, "iconMetadata.json"),
-    JSON.stringify({ version: package.version, parts })
+    JSON.stringify({ version: packageMeta.version, parts })
+  );
+
+  fs.writeFileSync(
+    path.resolve(OUTPUT_DIR, "iconList.json"),
+    JSON.stringify(
+      orderMeta(meta).map((icon) => ({
+        name: icon.name,
+        keywords: [
+          ...icon.tags.map((t) => t.toLowerCase().replace(/\s\/\s/g, " ")),
+          ...icon.aliases,
+        ],
+      }))
+    )
   );
 
   done();
 });
+
+gulp.task("gen-dummy-icons-json", (done) => {
+  if (!fs.existsSync(OUTPUT_DIR)) {
+    fs.mkdirSync(OUTPUT_DIR, { recursive: true });
+  }
+
+  fs.writeFileSync(path.resolve(OUTPUT_DIR, "iconList.json"), "[]");
+  done();
+});

build-scripts/gulp/hassio.js

@@ -1,15 +1,13 @@
-const gulp = require("gulp");
+import gulp from "gulp";
-const fs = require("fs");
+import env from "../env.cjs";
-const path = require("path");
+import "./clean.js";
-
+import "./compress.js";
-const env = require("../env");
+import "./entry-html.js";
-const paths = require("../paths");
+import "./gather-static.js";
-
+import "./gen-icons-json.js";
-require("./clean.js");
+import "./rollup.js";
-require("./gen-icons-json.js");
+import "./translations.js";
-require("./webpack.js");
+import "./webpack.js";
-require("./compress.js");
-require("./rollup.js");
 
 gulp.task(
   "develop-hassio",
@@ -18,8 +16,12 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-hassio",
-    "gen-icons-json",
+    "gen-dummy-icons-json",
-    "gen-index-hassio-dev",
+    "gen-pages-hassio-dev",
+    "build-supervisor-translations",
+    "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-static-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -31,10 +33,14 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-hassio",
-    "gen-icons-json",
+    "gen-dummy-icons-json",
+    "build-supervisor-translations",
+    "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-static-supervisor",
     env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
-    "gen-index-hassio-prod",
+    "gen-pages-hassio-prod",
     ...// Don't compress running tests
-    (env.isTest() ? [] : ["compress-hassio"])
+    (env.isTestBuild() ? [] : ["compress-hassio"])
   )
 );

build-scripts/gulp/locale-data.js

@@ -0,0 +1,71 @@
+import { deleteSync } from "del";
+import fs from "fs";
+import gulp from "gulp";
+import path from "path";
+import paths from "../paths.cjs";
+
+const outDir = "build/locale-data";
+
+gulp.task("clean-locale-data", async () => deleteSync([outDir]));
+
+gulp.task("ensure-locale-data-build-dir", async () => {
+  fs.mkdirSync(outDir, { recursive: true });
+});
+
+const modules = {
+  "intl-relativetimeformat": "RelativeTimeFormat",
+  "intl-datetimeformat": "DateTimeFormat",
+  "intl-numberformat": "NumberFormat",
+  "intl-displaynames": "DisplayNames",
+};
+
+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 = fs
+          .readFileSync(
+            path.resolve(
+              paths.polymer_dir,
+              `node_modules/@formatjs/${module}/locale-data/${lang}.js`
+            ),
+            "utf-8"
+          )
+          .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);
+        fs.mkdirSync(path.join(outDir, module), { recursive: true });
+        fs.writeFileSync(
+          path.join(outDir, `${module}/${lang}.json`),
+          localeData
+        );
+      } catch (e) {
+        if (e.code !== "ENOENT") {
+          throw e;
+        }
+      }
+    });
+    done();
+  });
+});
+
+gulp.task(
+  "build-locale-data",
+  gulp.series(
+    "clean-locale-data",
+    "ensure-locale-data-build-dir",
+    "create-locale-data"
+  )
+);

build-scripts/gulp/rollup.js

@@ -1,13 +1,14 @@
 // Tasks to run Rollup
-const path = require("path");
+
-const gulp = require("gulp");
+import log from "fancy-log";
-const rollup = require("rollup");
+import gulp from "gulp";
-const handler = require("serve-handler");
+import http from "http";
-const http = require("http");
+import open from "open";
-const log = require("fancy-log");
+import path from "path";
-const rollupConfig = require("../rollup");
+import { rollup } from "rollup";
-const paths = require("../paths");
+import handler from "serve-handler";
-const open = require("open");
+import paths from "../paths.cjs";
+import rollupConfig from "../rollup.cjs";
 
 const bothBuilds = (createConfigFunc, params) =>
   gulp.series(
@@ -30,11 +31,11 @@ const bothBuilds = (createConfigFunc, params) =>
   );
 
 function createServer(serveOptions) {
-  const server = http.createServer((request, response) => {
+  const server = http.createServer((request, response) =>
-    return handler(request, response, {
+    handler(request, response, {
       public: serveOptions.root,
-    });
+    })
-  });
+  );
 
   server.listen(
     serveOptions.port,
@@ -46,7 +47,7 @@ function createServer(serveOptions) {
   );
 }
 
-function watchRollup(createConfig, extraWatchSrc = [], serveOptions) {
+function watchRollup(createConfig, extraWatchSrc = [], serveOptions = null) {
   const { inputOptions, outputOptions } = createConfig({
     isProdBuild: false,
     latestBuild: true,

build-scripts/gulp/service-worker.js

@@ -1,13 +1,12 @@
 // Generate service worker.
 // Based on manifest, create a file with the content as service_worker.js
-/* eslint-disable import/no-dynamic-require */
+
-/* eslint-disable global-require */
+import fs from "fs-extra";
-const gulp = require("gulp");
+import gulp from "gulp";
-const path = require("path");
+import path from "path";
-const fs = require("fs-extra");
+import sourceMapUrl from "source-map-url";
-const workboxBuild = require("workbox-build");
+import workboxBuild from "workbox-build";
-const sourceMapUrl = require("source-map-url");
+import paths from "../paths.cjs";
-const paths = require("../paths.js");
 
 const swDest = path.resolve(paths.app_output_root, "service_worker.js");
 
@@ -30,10 +29,9 @@ self.addEventListener('install', (event) => {
 
 gulp.task("gen-service-worker-app-prod", async () => {
   // Read bundled source file
-  const bundleManifestLatest = require(path.resolve(
+  const bundleManifestLatest = fs.readJsonSync(
-    paths.app_output_latest,
+    path.resolve(paths.app_output_latest, "manifest.json")
-    "manifest.json"
+  );
-  ));
   let serviceWorkerContent = fs.readFileSync(
     paths.app_output_root + bundleManifestLatest["service_worker.js"],
     "utf-8"
@@ -48,10 +46,9 @@ gulp.task("gen-service-worker-app-prod", async () => {
   );
 
   // Remove ES5
-  const bundleManifestES5 = require(path.resolve(
+  const bundleManifestES5 = fs.readJsonSync(
-    paths.app_output_es5,
+    path.resolve(paths.app_output_es5, "manifest.json")
-    "manifest.json"
+  );
-  ));
   fs.removeSync(paths.app_output_root + bundleManifestES5["service_worker.js"]);
   fs.removeSync(
     paths.app_output_root + bundleManifestES5["service_worker.js.map"]

build-scripts/gulp/translations.js

@@ -1,57 +1,54 @@
-const crypto = require("crypto");
+import { createHash } from "crypto";
-const del = require("del");
+import { deleteSync } from "del";
-const path = require("path");
+import {
-const source = require("vinyl-source-stream");
+  mkdirSync,
-const vinylBuffer = require("vinyl-buffer");
+  readdirSync,
-const gulp = require("gulp");
+  readFileSync,
-const fs = require("fs");
+  renameSync,
-const foreach = require("gulp-foreach");
+  writeFile,
-const merge = require("gulp-merge-json");
+} from "fs";
-const rename = require("gulp-rename");
+import gulp from "gulp";
-const transform = require("gulp-json-transform");
+import flatmap from "gulp-flatmap";
-const { mapFiles } = require("../util");
+import transform from "gulp-json-transform";
-const env = require("../env");
+import merge from "gulp-merge-json";
-const paths = require("../paths");
+import rename from "gulp-rename";
+import path from "path";
+import vinylBuffer from "vinyl-buffer";
+import source from "vinyl-source-stream";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import { mapFiles } from "../util.cjs";
+import "./fetch-nightly-translations.js";
 
 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";
 let mergeBackend = false;
 
-gulp.task("translations-enable-merge-backend", (done) => {
+gulp.task(
-  mergeBackend = true;
+  "translations-enable-merge-backend",
-  done();
+  gulp.parallel((done) => {
-});
+    mergeBackend = true;
+    done();
+  }, "allow-setup-fetch-nightly-translations")
+);
 
-String.prototype.rsplit = function (sep, maxsplit) {
+// Panel translations which should be split from the core translations.
-  var split = this.split(sep);
+const TRANSLATION_FRAGMENTS = Object.keys(
-  return maxsplit
+  JSON.parse(
-    ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit))
+    readFileSync(
-    : split;
+      path.resolve(paths.polymer_dir, "src/translations/en.json"),
-};
+      "utf-8"
-
+    )
-// Panel translations which should be split from the core translations. These
+  ).ui.panel
-// should mirror the fragment definitions in polymer.json, so that we load
+);
-// additional resources at equivalent points.
-const TRANSLATION_FRAGMENTS = [
-  "config",
-  "history",
-  "logbook",
-  "mailbox",
-  "profile",
-  "shopping-list",
-  "page-authorize",
-  "page-demo",
-  "page-onboarding",
-  "developer-tools",
-];
 
 function recursiveFlatten(prefix, data) {
   let output = {};
-  Object.keys(data).forEach(function (key) {
+  Object.keys(data).forEach((key) => {
     if (typeof data[key] === "object") {
       output = {
         ...output,
@@ -112,15 +109,19 @@ 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) => {
+      output[key] = value.replace(re_key_reference, (_match, lokalise_key) => {
-        const replace = key.split("::").reduce((tr, k) => {
+        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;
       });
@@ -129,19 +130,14 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", function () {
+gulp.task("clean-translations", async () => deleteSync([workDir]));
-  return del([workDir]);
+
+gulp.task("ensure-translations-build-dir", async () => {
+  mkdirSync(workDir, { recursive: true });
 });
 
-gulp.task("ensure-translations-build-dir", (done) => {
+gulp.task("create-test-metadata", (cb) => {
-  if (!fs.existsSync(workDir)) {
+  writeFile(
-    fs.mkdirSync(workDir);
-  }
-  done();
-});
-
-gulp.task("create-test-metadata", function (cb) {
-  fs.writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
       test: {
@@ -154,17 +150,13 @@ gulp.task("create-test-metadata", function (cb) {
 
 gulp.task(
   "create-test-translation",
-  gulp.series("create-test-metadata", function createTestTranslation() {
+  gulp.series("create-test-metadata", () =>
-    return gulp
+    gulp
       .src(path.join(paths.translations_src, "en.json"))
-      .pipe(
+      .pipe(transform((data, _file) => recursiveEmpty(data)))
-        transform(function (data, file) {
-          return recursiveEmpty(data);
-        })
-      )
       .pipe(rename("test.json"))
-      .pipe(gulp.dest(workDir));
+      .pipe(gulp.dest(workDir))
-  })
+  )
 );
 
 /**
@@ -176,7 +168,7 @@ 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) {
@@ -185,31 +177,30 @@ gulp.task("build-master-translation", function () {
 
   return gulp
     .src(src)
-    .pipe(
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
-      transform(function (data, file) {
-        return lokaliseTransform(data, data, file);
-      })
-    )
     .pipe(
       merge({
-        fileName: "translationMaster.json",
+        fileName: "en.json",
       })
     )
-    .pipe(gulp.dest(workDir));
+    .pipe(gulp.dest(fullDir));
 });
 
-gulp.task("build-merged-translations", function () {
+gulp.task("build-merged-translations", () =>
-  return gulp
+  gulp
-    .src([inFrontendDir + "/*.json", workDir + "/test.json"], {
+    .src(
-      allowEmpty: true,
+      [
-    })
+        inFrontendDir + "/*.json",
-    .pipe(
+        "!" + inFrontendDir + "/en.json",
-      transform(function (data, file) {
+        workDir + "/test.json",
-        return lokaliseTransform(data, data, file);
+      ],
-      })
+      {
+        allowEmpty: true,
+      }
     )
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
-      foreach(function (stream, file) {
+      flatmap((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
@@ -219,7 +210,7 @@ gulp.task("build-merged-translations", function () {
         //       than a base translation + region.
         const tr = path.basename(file.history[0], ".json");
         const subtags = tr.split("-");
-        const src = [workDir + "/translationMaster.json"];
+        const src = [fullDir + "/en.json"];
         for (let i = 1; i <= subtags.length; i++) {
           const lang = subtags.slice(0, i).join("-");
           if (lang === "test") {
@@ -241,17 +232,17 @@ 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) => ({
@@ -262,32 +253,33 @@ 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"
@@ -295,41 +287,44 @@ 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(
+gulp.task("build-translation-fingerprints", () => {
-  "build-translation-fingerprints",
+  // Fingerprint full file of each language
-  function fingerprintTranslationFiles() {
+  const files = readdirSync(fullDir);
-    // Fingerprint full file of each language
-    const files = fs.readdirSync(fullDir);
 
-    for (let i = 0; i < files.length; i++) {
+  for (let i = 0; i < files.length; i++) {
-      fingerprints[files[i].split(".")[0]] = {
+    fingerprints[files[i].split(".")[0]] = {
-        // In dev we create fake hashes
+      // In dev we create fake hashes
-        hash: env.isProdBuild()
+      hash: env.isProdBuild()
-          ? crypto
+        ? createHash("md5")
-              .createHash("md5")
+            .update(readFileSync(path.join(fullDir, files[i]), "utf-8"))
-              .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
+            .digest("hex")
-              .digest("hex")
+        : "dev",
-          : "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);
 
@@ -338,68 +333,121 @@ gulp.task(
         throw new Error(`Unable to find hash for ${filename}`);
       }
 
-      fs.renameSync(
+      renameSync(
         filename,
         `${parsed.dir}/${parsed.name}-${fingerprints[parsed.name].hash}${
           parsed.ext
         }`
       );
     });
-
-    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 {
+            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(
   "build-translations",
   gulp.series(
-    "clean-translations",
+    gulp.parallel(
-    "ensure-translations-build-dir",
+      "fetch-nightly-translations",
-    env.isProdBuild() ? (done) => done() : "create-test-translation",
+      gulp.series("clean-translations", "ensure-translations-build-dir")
-    "build-master-translation",
+    ),
-    "build-merged-translations",
+    "create-translations",
-    gulp.parallel(...splitTasks),
-    "build-flattened-translations",
     "build-translation-fingerprints",
-    function writeMetadata() {
+    "build-translation-write-metadata"
-      return gulp
+  )
-        .src(
+);
-          [
+
-            path.join(paths.translations_src, "translationMetadata.json"),
+gulp.task(
-            workDir + "/testMetadata.json",
+  "build-supervisor-translations",
-            workDir + "/translationFingerprints.json",
+  gulp.series(
-          ],
+    gulp.parallel(
-          { allowEmpty: true }
+      "fetch-nightly-translations",
-        )
+      gulp.series("clean-translations", "ensure-translations-build-dir")
-        .pipe(merge({}))
+    ),
-        .pipe(
+    "build-master-translation",
-          transform(function (data) {
+    "build-merged-translations",
-            const newData = {};
+    "build-translation-fragment-supervisor",
-            Object.entries(data).forEach(([key, value]) => {
+    "build-translation-flatten-supervisor",
-              // Filter out translations without native name.
+    "build-translation-fingerprints",
-              if (data[key].nativeName) {
+    "build-translation-write-metadata"
-                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-scripts/gulp/wds.js

@@ -0,0 +1,10 @@
+import gulp from "gulp";
+import { startDevServer } from "@web/dev-server";
+
+gulp.task("wds-watch-app", async () => {
+  startDevServer({
+    config: {
+      watch: true,
+    },
+  });
+});

build-scripts/gulp/webpack.js

@@ -1,42 +1,66 @@
 // Tasks to run webpack.
-const gulp = require("gulp");
+
-const webpack = require("webpack");
+import log from "fancy-log";
-const WebpackDevServer = require("webpack-dev-server");
+import fs from "fs";
-const log = require("fancy-log");
+import gulp from "gulp";
-const path = require("path");
+import path from "path";
-const paths = require("../paths");
+import webpack from "webpack";
-const {
+import WebpackDevServer from "webpack-dev-server";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import {
   createAppConfig,
-  createDemoConfig,
   createCastConfig,
-  createHassioConfig,
+  createDemoConfig,
   createGalleryConfig,
-} = require("../webpack");
+  createHassioConfig,
+} from "../webpack.cjs";
 
 const bothBuilds = (createConfigFunc, params) => [
   createConfigFunc({ ...params, latestBuild: true }),
   createConfigFunc({ ...params, latestBuild: false }),
 ];
 
-const runDevServer = ({
+const isWsl =
+  fs.existsSync("/proc/version") &&
+  fs
+    .readFileSync("/proc/version", "utf-8")
+    .toLocaleLowerCase()
+    .includes("microsoft");
+
+/**
+ * @param {{
+ *   compiler: import("webpack").Compiler,
+ *   contentBase: string,
+ *   port: number,
+ *   listenHost?: string
+ * }}
+ */
+const runDevServer = async ({
   compiler,
   contentBase,
   port,
   listenHost = "localhost",
-}) =>
+}) => {
-  new WebpackDevServer(compiler, {
+  const server = new WebpackDevServer(
-    open: true,
+    {
-    watchContentBase: true,
+      open: true,
-    contentBase,
+      host: listenHost,
-  }).listen(port, listenHost, function (err) {
+      port,
-    if (err) {
+      static: {
-      throw err;
+        directory: contentBase,
-    }
+        watch: true,
-    // Server listening
+      },
-    log("[webpack-dev-server]", `http://localhost:${port}`);
+    },
-  });
+    compiler
+  );
 
-const handler = (done) => (err, stats) => {
+  await server.start();
+  // Server listening
+  log("[webpack-dev-server]", `Project is running at http://localhost:${port}`);
+};
+
+const doneHandler = (done) => (err, stats) => {
   if (err) {
     log.error(err.stack || err);
     if (err.details) {
@@ -45,128 +69,123 @@ const handler = (done) => (err, stats) => {
     return;
   }
 
-  log(`Build done @ ${new Date().toLocaleTimeString()}`);
-
   if (stats.hasErrors() || stats.hasWarnings()) {
-    log.warn(stats.toString("minimal"));
+    console.log(stats.toString("minimal"));
   }
 
+  log(`Build done @ ${new Date().toLocaleTimeString()}`);
+
   if (done) {
     done();
   }
 };
 
+const prodBuild = (conf) =>
+  new Promise((resolve) => {
+    webpack(
+      conf,
+      // Resolve promise when done. Because we pass a callback, webpack closes itself
+      doneHandler(resolve)
+    );
+  });
+
 gulp.task("webpack-watch-app", () => {
-  // we are not calling done, so this command will run forever
+  // This command will run forever because we don't close compiler
-  webpack(createAppConfig({ isProdBuild: false, latestBuild: true })).watch(
+  webpack(
-    { ignored: /build-translations/ },
+    process.env.ES5
-    handler()
+      ? 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")
   );
 });
 
-gulp.task(
+gulp.task("webpack-prod-app", () =>
-  "webpack-prod-app",
+  prodBuild(
-  () =>
+    bothBuilds(createAppConfig, {
-    new Promise((resolve) =>
+      isProdBuild: true,
-      webpack(
+      isStatsBuild: env.isStatsBuild(),
-        bothBuilds(createAppConfig, { isProdBuild: true }),
+      isTestBuild: env.isTestBuild(),
-        handler(resolve)
+    })
-      )
+  )
-    )
 );
 
-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",
-  () =>
-    new Promise((resolve) =>
-      webpack(
-        bothBuilds(createDemoConfig, {
-          isProdBuild: true,
-        }),
-        handler(resolve)
-      )
-    )
 );
 
-gulp.task("webpack-dev-server-cast", () => {
+gulp.task("webpack-prod-demo", () =>
+  prodBuild(
+    bothBuilds(createDemoConfig, {
+      isProdBuild: true,
+    })
+  )
+);
+
+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(
+gulp.task("webpack-prod-cast", () =>
-  "webpack-prod-cast",
+  prodBuild(
-  () =>
+    bothBuilds(createCastConfig, {
-    new Promise((resolve) =>
+      isProdBuild: true,
-      webpack(
+    })
-        bothBuilds(createCastConfig, {
+  )
-          isProdBuild: true,
-        }),
-
-        handler(resolve)
-      )
-    )
 );
 
 gulp.task("webpack-watch-hassio", () => {
-  // we are not calling done, so this command will run forever
+  // This command will run forever because we don't close compiler
   webpack(
     createHassioConfig({
       isProdBuild: false,
       latestBuild: true,
     })
-  ).watch({}, handler());
+  ).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(
+gulp.task("webpack-prod-hassio", () =>
-  "webpack-prod-hassio",
+  prodBuild(
-  () =>
+    bothBuilds(createHassioConfig, {
-    new Promise((resolve) =>
+      isProdBuild: true,
-      webpack(
+      isStatsBuild: env.isStatsBuild(),
-        bothBuilds(createHassioConfig, {
+      isTestBuild: env.isTestBuild(),
-          isProdBuild: true,
+    })
-        }),
+  )
-        handler(resolve)
-      )
-    )
 );
 
-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,
-  });
+    listenHost: "0.0.0.0",
-});
+  })
-
+);
-gulp.task(
+
-  "webpack-prod-gallery",
+gulp.task("webpack-prod-gallery", () =>
-  () =>
+  prodBuild(
-    new Promise((resolve) =>
+    createGalleryConfig({
-      webpack(
+      isProdBuild: true,
-        createGalleryConfig({
+      latestBuild: true,
-          isProdBuild: true,
+    })
-          latestBuild: true,
+  )
-        }),
-
-        handler(resolve)
-      )
-    )
 );

build-scripts/list-plugins-and-polyfills.js

@@ -0,0 +1,59 @@
+#!/usr/bin/env node
+// Script to print Babel plugins and Core JS polyfills that will be used by browserslist environments
+
+import { version as babelVersion } from "@babel/core";
+import presetEnv from "@babel/preset-env";
+import compilationTargets from "@babel/helper-compilation-targets";
+import coreJSCompat from "core-js-compat";
+import { logPlugin } from "@babel/preset-env/lib/debug.js";
+import { babelOptions } from "./bundle.cjs";
+
+const detailsOpen = (heading) =>
+  `<details>\n<summary><h4>${heading}</h4></summary>\n`;
+const detailsClose = "</details>\n";
+
+const dummyAPI = {
+  version: babelVersion,
+  assertVersion: () => {},
+  caller: (callback) =>
+    callback({
+      name: "Dummy Bundler",
+      supportsStaticESM: true,
+      supportsDynamicImport: true,
+      supportsTopLevelAwait: true,
+      supportsExportNamespaceFrom: true,
+    }),
+  targets: () => ({}),
+};
+
+for (const buildType of ["Modern", "Legacy"]) {
+  const browserslistEnv = buildType.toLowerCase();
+  const babelOpts = babelOptions({ latestBuild: browserslistEnv === "modern" });
+  const presetEnvOpts = babelOpts.presets[0][1];
+
+  // Invoking preset-env in debug mode will log the included plugins
+  console.log(detailsOpen(`${buildType} Build Babel Plugins`));
+  presetEnv.default(dummyAPI, {
+    ...presetEnvOpts,
+    browserslistEnv,
+    debug: true,
+  });
+  console.log(detailsClose);
+
+  // Manually log the Core-JS polyfills using the same technique
+  if (presetEnvOpts.useBuiltIns) {
+    console.log(detailsOpen(`${buildType} Build Core-JS Polyfills`));
+    const targets = compilationTargets.default(babelOpts?.targets, {
+      browserslistEnv,
+    });
+    const polyfillList = coreJSCompat({ targets }).list;
+    console.log(
+      "The following %i polyfills may be injected by Babel:\n",
+      polyfillList.length
+    );
+    for (const polyfill of polyfillList) {
+      logPlugin(polyfill, targets, coreJSCompat.data);
+    }
+    console.log(detailsClose);
+  }
+}

build-scripts/paths.cjs

@@ -1,4 +1,4 @@
-var path = require("path");
+const path = require("path");
 
 module.exports = {
   polymer_dir: path.resolve(__dirname, ".."),
@@ -25,6 +25,7 @@ module.exports = {
   cast_output_es5: path.resolve(__dirname, "../cast/dist/frontend_es5"),
 
   gallery_dir: path.resolve(__dirname, "../gallery"),
+  gallery_build: path.resolve(__dirname, "../gallery/build"),
   gallery_output_root: path.resolve(__dirname, "../gallery/dist"),
   gallery_output_latest: path.resolve(
     __dirname,
@@ -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-plugins/ignore-plugin.cjs

@@ -1,5 +1,3 @@
-const path = require("path");
-
 module.exports = function (userOptions = {}) {
   // Files need to be absolute paths.
   // This only works if the file has no exports

build-scripts/rollup-plugins/worker-plugin.cjs

@@ -81,13 +81,13 @@ module.exports = function (opts = {}) {
         opts.workerRegexp.flags
       );
       if (!workerRegexp.test(code)) {
-        return;
+        return undefined;
       }
 
       const ms = new MagicString(code);
       // Reset the regexp
       workerRegexp.lastIndex = 0;
-      while (true) {
+      for (;;) {
         const match = workerRegexp.exec(code);
         if (!match) {
           break;
@@ -98,11 +98,12 @@ module.exports = function (opts = {}) {
         // Parse the optional options object
         if (match[3] && match[3].length > 0) {
           // FIXME: ooooof!
+          // eslint-disable-next-line @typescript-eslint/no-implied-eval
           optionsObject = new Function(`return ${match[3].slice(1)};`)();
         }
         delete optionsObject.type;
 
-        if (!new RegExp("^.*/").test(workerFile)) {
+        if (!/^.*\//.test(workerFile)) {
           this.warn(
             `Paths passed to the Worker constructor must be relative or absolute, i.e. start with /, ./ or ../ (just like dynamic import!). Ignoring "${workerFile}".`
           );
@@ -110,12 +111,14 @@ module.exports = function (opts = {}) {
         }
 
         // Find worker file and store it as a chunk with ID prefixed for our loader
+        // eslint-disable-next-line no-await-in-loop
         const resolvedWorkerFile = (await this.resolve(workerFile, id)).id;
         let chunkRefId;
         if (resolvedWorkerFile in refIds) {
           chunkRefId = refIds[resolvedWorkerFile];
         } else {
           this.addWatchFile(resolvedWorkerFile);
+          // eslint-disable-next-line no-await-in-loop
           const source = await getBundledWorker(
             resolvedWorkerFile,
             rollupOptions

build-scripts/rollup.cjs

@@ -0,0 +1,145 @@
+const path = require("path");
+
+const commonjs = require("@rollup/plugin-commonjs");
+const resolve = require("@rollup/plugin-node-resolve");
+const json = require("@rollup/plugin-json");
+const { babel } = require("@rollup/plugin-babel");
+const replace = require("@rollup/plugin-replace");
+const visualizer = require("rollup-plugin-visualizer");
+const { string } = require("rollup-plugin-string");
+const { terser } = require("rollup-plugin-terser");
+const manifest = require("./rollup-plugins/manifest-plugin.cjs");
+const worker = require("./rollup-plugins/worker-plugin.cjs");
+const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin.cjs");
+const ignore = require("./rollup-plugins/ignore-plugin.cjs");
+
+const bundle = require("./bundle.cjs");
+const paths = require("./paths.cjs");
+
+const extensions = [".js", ".ts"];
+
+/**
+ * @param {Object} arg
+ * @param { import("rollup").InputOption } arg.input
+ */
+const createRollupConfig = ({
+  entry,
+  outputPath,
+  defineOverlay,
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  publicPath,
+  dontHash,
+  isWDS,
+}) => ({
+  /**
+   * @type { import("rollup").InputOptions }
+   */
+  inputOptions: {
+    input: entry,
+    // Some entry points contain no JavaScript. This setting silences a warning about that.
+    // https://rollupjs.org/configuration-options/#preserveentrysignatures
+    preserveEntrySignatures: false,
+    plugins: [
+      ignore({
+        files: bundle
+          .emptyPackages({ latestBuild })
+          // TEMP HACK: Makes Rollup build work again
+          .concat(
+            require.resolve(
+              "@webcomponents/scoped-custom-element-registry/scoped-custom-element-registry.min"
+            )
+          ),
+      }),
+      resolve({
+        extensions,
+        preferBuiltins: false,
+        browser: true,
+        rootDir: paths.polymer_dir,
+      }),
+      commonjs(),
+      json(),
+      babel({
+        ...bundle.babelOptions({ latestBuild, isProdBuild }),
+        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,
+        }),
+      !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/configuration-options/#output-dir
+    dir: outputPath,
+    // https://rollupjs.org/configuration-options/#output-format
+    format: latestBuild ? "es" : "systemjs",
+    // https://rollupjs.org/configuration-options/#output-externallivebindings
+    externalLiveBindings: false,
+    // https://rollupjs.org/configuration-options/#output-entryfilenames
+    // https://rollupjs.org/configuration-options/#output-chunkfilenames
+    // https://rollupjs.org/configuration-options/#output-assetfilenames
+    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/configuration-options/#output-sourcemap
+    sourcemap: isProdBuild ? true : "inline",
+  },
+});
+
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) =>
+  createRollupConfig(
+    bundle.config.app({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isWDS,
+    })
+  );
+
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createRollupConfig(
+    bundle.config.demo({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    })
+  );
+
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
+
+module.exports = {
+  createAppConfig,
+  createDemoConfig,
+  createCastConfig,
+  createHassioConfig,
+  createGalleryConfig,
+};

build-scripts/rollup.js

@@ -1,151 +0,0 @@
-const path = require("path");
-
-const commonjs = require("@rollup/plugin-commonjs");
-const resolve = require("@rollup/plugin-node-resolve");
-const json = require("@rollup/plugin-json");
-const babel = require("rollup-plugin-babel");
-const replace = require("@rollup/plugin-replace");
-const visualizer = require("rollup-plugin-visualizer");
-const { string } = require("rollup-plugin-string");
-const { terser } = require("rollup-plugin-terser");
-const manifest = require("./rollup-plugins/manifest-plugin");
-const worker = require("./rollup-plugins/worker-plugin");
-const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin");
-const ignore = require("./rollup-plugins/ignore-plugin");
-
-const bundle = require("./bundle");
-const paths = require("./paths");
-
-const extensions = [".js", ".ts"];
-
-/**
- * @param {Object} arg
- * @param { import("rollup").InputOption } arg.input
- */
-const createRollupConfig = ({
-  entry,
-  outputPath,
-  defineOverlay,
-  isProdBuild,
-  latestBuild,
-  isStatsBuild,
-  publicPath,
-  dontHash,
-}) => {
-  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 }),
-        }),
-        resolve({
-          extensions,
-          preferBuiltins: false,
-          browser: true,
-          rootDir: paths.polymer_dir,
-        }),
-        commonjs({
-          namedExports: {
-            "js-yaml": ["safeDump", "safeLoad"],
-          },
-        }),
-        json(),
-        babel({
-          ...bundle.babelOptions({ latestBuild }),
-          extensions,
-          exclude: bundle.babelExclude(),
-        }),
-        string({
-          // Import certain extensions as strings
-          include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
-        }),
-        replace(
-          bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
-        ),
-        manifest({
-          publicPath,
-        }),
-        worker(),
-        dontHashPlugin({ dontHash }),
-        isProdBuild && terser(bundle.terserOptions(latestBuild)),
-        isStatsBuild &&
-          visualizer({
-            // https://github.com/btd/rollup-plugin-visualizer#options
-            open: true,
-            sourcemap: true,
-          }),
-      ],
-    },
-    /**
-     * @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 }) => {
-  return createRollupConfig(
-    bundle.config.app({
-      isProdBuild,
-      latestBuild,
-      isStatsBuild,
-    })
-  );
-};
-
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createRollupConfig(
-    bundle.config.demo({
-      isProdBuild,
-      latestBuild,
-      isStatsBuild,
-    })
-  );
-};
-
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
-
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
-};
-
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
-
-module.exports = {
-  createAppConfig,
-  createDemoConfig,
-  createCastConfig,
-  createHassioConfig,
-  createGalleryConfig,
-};

build-scripts/webpack.cjs

@@ -0,0 +1,246 @@
+const webpack = require("webpack");
+const path = require("path");
+const TerserPlugin = require("terser-webpack-plugin");
+const { WebpackManifestPlugin } = require("webpack-manifest-plugin");
+const log = require("fancy-log");
+const WebpackBar = require("webpackbar");
+const paths = require("./paths.cjs");
+const bundle = require("./bundle.cjs");
+
+class LogStartCompilePlugin {
+  ignoredFirst = false;
+
+  apply(compiler) {
+    compiler.hooks.beforeCompile.tap("LogStartCompilePlugin", () => {
+      if (!this.ignoredFirst) {
+        this.ignoredFirst = true;
+        return;
+      }
+      log("Changes detected. Starting compilation");
+    });
+  }
+}
+
+const createWebpackConfig = ({
+  name,
+  entry,
+  outputPath,
+  publicPath,
+  defineOverlay,
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+  isHassioBuild,
+  dontHash,
+}) => {
+  if (!dontHash) {
+    dontHash = new Set();
+  }
+  const ignorePackages = bundle.ignorePackages({ latestBuild });
+  return {
+    name,
+    mode: isProdBuild ? "production" : "development",
+    target: ["web", latestBuild ? "es2017" : "es5"],
+    // For tests/CI, source maps are skipped to gain build speed
+    // For production, generate source maps for accurate stack traces without source code
+    // For development, generate "cheap" versions that can map to original line numbers
+    devtool: isTestBuild
+      ? false
+      : isProdBuild
+      ? "nosources-source-map"
+      : "eval-cheap-module-source-map",
+    entry,
+    node: false,
+    module: {
+      rules: [
+        {
+          test: /\.m?js$|\.ts$/,
+          use: {
+            loader: "babel-loader",
+            options: {
+              ...bundle.babelOptions({ latestBuild, isProdBuild, isTestBuild }),
+              cacheDirectory: !isProdBuild,
+              cacheCompression: false,
+            },
+          },
+          resolve: {
+            fullySpecified: false,
+          },
+        },
+        {
+          test: /\.css$/,
+          type: "asset/source",
+        },
+      ],
+    },
+    optimization: {
+      minimizer: [
+        new TerserPlugin({
+          parallel: true,
+          extractComments: true,
+          terserOptions: bundle.terserOptions({ latestBuild, isTestBuild }),
+        }),
+      ],
+      moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+    },
+    plugins: [
+      !isStatsBuild && new WebpackBar({ fancy: !isProdBuild }),
+      new WebpackManifestPlugin({
+        // Only include the JS of entrypoints
+        filter: (file) => file.isInitial && !file.name.endsWith(".map"),
+      }),
+      new webpack.DefinePlugin(
+        bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
+      ),
+      new webpack.IgnorePlugin({
+        checkResource(resource, context) {
+          // Only use ignore to intercept imports that we don't control
+          // inside node_module dependencies.
+          if (
+            !context.includes("/node_modules/") ||
+            // calling define.amd will call require("!!webpack amd options")
+            resource.startsWith("!!webpack") ||
+            // loaded by webpack dev server but doesn't exist.
+            resource === "webpack/hot"
+          ) {
+            return false;
+          }
+          let fullPath;
+          try {
+            fullPath = resource.startsWith(".")
+              ? path.resolve(context, resource)
+              : require.resolve(resource);
+          } catch (err) {
+            console.error(
+              "Error in Home Assistant ignore plugin",
+              resource,
+              context
+            );
+            throw err;
+          }
+
+          return ignorePackages.some((toIgnorePath) =>
+            fullPath.startsWith(toIgnorePath)
+          );
+        },
+      }),
+      new webpack.NormalModuleReplacementPlugin(
+        new RegExp(
+          bundle.emptyPackages({ latestBuild, isHassioBuild }).join("|")
+        ),
+        path.resolve(paths.polymer_dir, "src/util/empty.js")
+      ),
+      // See `src/resources/intl-polyfill-legacy.ts` for explanation
+      !latestBuild &&
+        new webpack.NormalModuleReplacementPlugin(
+          new RegExp(
+            path.resolve(paths.polymer_dir, "src/resources/intl-polyfill.ts")
+          ),
+          path.resolve(
+            paths.polymer_dir,
+            "src/resources/intl-polyfill-legacy.ts"
+          )
+        ),
+      !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$": "lit/polyfill-support.js",
+        "@lit-labs/virtualizer/layouts/grid":
+          "@lit-labs/virtualizer/layouts/grid.js",
+      },
+    },
+    output: {
+      filename: ({ chunk }) =>
+        !isProdBuild || isStatsBuild || dontHash.has(chunk.name)
+          ? "[name].js"
+          : "[name]-[contenthash].js",
+      chunkFilename:
+        isProdBuild && !isStatsBuild ? "[id]-[contenthash].js" : "[name].js",
+      assetModuleFilename:
+        isProdBuild && !isStatsBuild ? "[id]-[contenthash][ext]" : "[id][ext]",
+      hashFunction: "xxhash64",
+      hashDigest: "base64url",
+      hashDigestLength: 11, // full length of 64 bit base64url
+      path: outputPath,
+      publicPath,
+      // To silence warning in worker plugin
+      globalObject: "self",
+      // Since production source maps don't include sources, we need to point to them elsewhere
+      // For dependencies, just provide the path (no source in browser)
+      // Otherwise, point to the raw code on GitHub for browser to load
+      devtoolModuleFilenameTemplate:
+        !isTestBuild && isProdBuild
+          ? (info) => {
+              const sourcePath = info.resourcePath.replace(/^\.\//, "");
+              if (
+                sourcePath.startsWith("node_modules") ||
+                sourcePath.startsWith("webpack")
+              ) {
+                return `no-source/${sourcePath}`;
+              }
+              return `${bundle.sourceMapURL()}/${sourcePath}`;
+            }
+          : undefined,
+    },
+    experiments: {
+      topLevelAwait: true,
+    },
+  };
+};
+
+const createAppConfig = ({
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+}) =>
+  createWebpackConfig(
+    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild })
+  );
+
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createWebpackConfig(
+    bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
+  );
+
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+
+const createHassioConfig = ({
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+}) =>
+  createWebpackConfig(
+    bundle.config.hassio({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isTestBuild,
+    })
+  );
+
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
+
+module.exports = {
+  createAppConfig,
+  createDemoConfig,
+  createCastConfig,
+  createHassioConfig,
+  createGalleryConfig,
+};

build-scripts/webpack.js

@@ -1,180 +0,0 @@
-const webpack = require("webpack");
-const path = require("path");
-const TerserPlugin = require("terser-webpack-plugin");
-const ManifestPlugin = require("webpack-manifest-plugin");
-const paths = require("./paths.js");
-const bundle = require("./bundle");
-
-const createWebpackConfig = ({
-  entry,
-  outputPath,
-  publicPath,
-  defineOverlay,
-  isProdBuild,
-  latestBuild,
-  isStatsBuild,
-  dontHash,
-}) => {
-  if (!dontHash) {
-    dontHash = new Set();
-  }
-  const ignorePackages = bundle.ignorePackages({ latestBuild });
-  return {
-    mode: isProdBuild ? "production" : "development",
-    devtool: isProdBuild
-      ? "cheap-module-source-map"
-      : "eval-cheap-module-source-map",
-    entry,
-    node: false,
-    module: {
-      rules: [
-        {
-          test: /\.m?js$|\.ts$/,
-          exclude: bundle.babelExclude(),
-          use: {
-            loader: "babel-loader",
-            options: bundle.babelOptions({ latestBuild }),
-          },
-        },
-        {
-          test: /\.css$/,
-          use: "raw-loader",
-        },
-      ],
-    },
-    optimization: {
-      minimizer: [
-        new TerserPlugin({
-          parallel: true,
-          extractComments: true,
-          terserOptions: bundle.terserOptions(latestBuild),
-        }),
-      ],
-    },
-    plugins: [
-      new ManifestPlugin({
-        // Only include the JS of entrypoints
-        filter: (file) => file.isInitial && !file.name.endsWith(".map"),
-      }),
-      new webpack.DefinePlugin(
-        bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
-      ),
-      new webpack.IgnorePlugin({
-        checkResource(resource, context) {
-          // Only use ignore to intercept imports that we don't control
-          // inside node_module dependencies.
-          if (
-            !context.includes("/node_modules/") ||
-            // calling define.amd will call require("!!webpack amd options")
-            resource.startsWith("!!webpack") ||
-            // loaded by webpack dev server but doesn't exist.
-            resource === "webpack/hot"
-          ) {
-            return false;
-          }
-          let fullPath;
-          try {
-            fullPath = resource.startsWith(".")
-              ? path.resolve(context, resource)
-              : require.resolve(resource);
-          } catch (err) {
-            console.error(
-              "Error in Home Assistant ignore plugin",
-              resource,
-              context
-            );
-            throw err;
-          }
-
-          return ignorePackages.some((toIgnorePath) =>
-            fullPath.startsWith(toIgnorePath)
-          );
-        },
-      }),
-      new webpack.NormalModuleReplacementPlugin(
-        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")
-      ),
-    ],
-    resolve: {
-      extensions: [".ts", ".js", ".json"],
-    },
-    output: {
-      filename: ({ chunk }) => {
-        if (!isProdBuild || 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",
-      path: outputPath,
-      publicPath,
-      // To silence warning in worker plugin
-      globalObject: "self",
-    },
-  };
-};
-
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
-    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
-  );
-};
-
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
-    bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
-  );
-};
-
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
-
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.hassio({ isProdBuild, latestBuild })
-  );
-};
-
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
-
-module.exports = {
-  createAppConfig,
-  createDemoConfig,
-  createCastConfig,
-  createHassioConfig,
-  createGalleryConfig,
-};

cast/public/_redirects

@@ -0,0 +1,9 @@
+# These redirects are handled by Netlify
+#
+
+# Some custom cards are not prefixing the instance URL when fetching data
+# and can end up fetching the data from the Cast domain instead of HA.
+# This will make sure that some common ones are replaced with a placeholder.
+/api/camera_proxy/* /images/google-nest-hub.png
+/api/camera_proxy_stream/* /images/google-nest-hub.png
+/api/media_player_proxy/* /images/google-nest-hub.png

cast/rollup.config.js

@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
+import rollup from "../build-scripts/rollup.cjs";
-const env = require("../build-scripts/env.js");
+import env from "../build-scripts/env.cjs";
 
 const config = rollup.createCastConfig({
   isProdBuild: env.isProdBuild(),
@@ -7,4 +7,4 @@ const config = rollup.createCastConfig({
   isStatsBuild: env.isStatsBuild(),
 });
 
-module.exports = { ...config.inputOptions, output: config.outputOptions };
+export default { ...config.inputOptions, output: config.outputOptions };

cast/src/html/_social_meta.html.template

@@ -0,0 +1,24 @@
+<meta property="fb:app_id" content="338291289691179" />
+<meta property="og:title" content="Home Assistant Cast" />
+<meta property="og:site_name" content="Home Assistant Cast" />
+<meta property="og:url" content="https://cast.home-assistant.io/" />
+<meta property="og:type" content="website" />
+<meta
+  property="og:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  property="og:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>
+<meta name="twitter:card" content="summary_large_image" />
+<meta name="twitter:site" content="@home_assistant" />
+<meta name="twitter:title" content="Home Assistant Cast" />
+<meta
+  name="twitter:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  name="twitter:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>

cast/src/html/faq.html.template

@@ -3,7 +3,7 @@
   <head>
     <title>Home Assistant Cast - FAQ</title>
     <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
     <style>
       body {
         background-color: #e5e5e5;
@@ -35,25 +35,14 @@
     />
   </head>
   <body>
-    <%= renderTemplate('_js_base') %>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
-
     <script>
-      import("<%= latestLauncherJS %>");
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
       window.latestJS = true;
     </script>
-
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-
     <hc-layout subtitle="FAQ">
       <style>
         a {
@@ -139,7 +128,7 @@
           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
           >.
@@ -213,7 +202,7 @@
         </p>
         <ul>
           <li>Google Chrome (all platforms except iOS)</li>
-          <li>Microsoft Edge (all platforms)</li>
+          <li>Microsoft Edge (all platforms except iOS)</li>
         </ul>
       </div>
 

cast/src/html/index.html.template

@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Home Assistant Cast</title>
+    <link rel="manifest" href="/manifest.json" />
+    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
+    <style>
+      body {
+        background-color: #e5e5e5;
+      }
+    </style>
+    <%= renderTemplate("_social_meta.html.template") %>
+  </head>
+  <body>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <hc-connect></hc-connect>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
+    <script>
+    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+
+    ga('create', 'UA-57927901-9', 'auto');
+    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
+    </script>
+  </body>
+</html>

cast/src/html/launcher.html.template

@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Home Assistant Cast</title>
-    <link rel="manifest" href="/manifest.json" />
-    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
-    <style>
-      body {
-        background-color: #e5e5e5;
-      }
-    </style>
-    <meta property="fb:app_id" content="338291289691179">
-    <meta property="og:title" content="Home Assistant Cast">
-    <meta property="og:site_name" content="Home Assistant Cast">
-    <meta property="og:url" content="https://cast.home-assistant.io/">
-    <meta property="og:type" content="website">
-    <meta property="og:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta property="og:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-    <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:site" content="@home_assistant">
-    <meta name="twitter:title" content="Home Assistant Cast">
-    <meta name="twitter:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta name="twitter:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-  </head>
-  <body>
-    <%= renderTemplate('_js_base') %>
-
-    <hc-connect></hc-connect>
-
-    <script>
-      import("<%= latestLauncherJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-    <script>
-    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
-
-    ga('create', 'UA-57927901-9', 'auto');
-    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
-    </script>
-  </body>
-</html>

cast/src/html/media.html.template

@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
+    <style>
+      body {
+        --logo-image: url('https://www.home-assistant.io/images/home-assistant-logo.svg');
+        --logo-repeat: no-repeat;
+        --playback-logo-image: url('https://www.home-assistant.io/images/home-assistant-logo.svg');
+        --theme-hue: 200;
+        --progress-color: #03a9f4;
+        --splash-image: url('https://home-assistant.io/images/cast/splash.png');
+        --splash-size: cover;
+        --background-color: #41bdf5;
+      }
+    </style>
+    <script>
+      var _gaq=[['_setAccount','UA-57927901-10'],['_trackPageview']];
+      (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
+      g.src=('https:'==location.protocol?'//ssl':'//www')+'.google-analytics.com/ga.js';
+      s.parentNode.insertBefore(g,s)}(document,'script'));
+    </script>
+  </head>
+  <body>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <cast-media-player></cast-media-player>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
+  </body>
+</html>

cast/src/html/receiver.html.template

@@ -1,8 +1,10 @@
 <!DOCTYPE html>
 <html>
   <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
-  <script type="module" src="<%= latestReceiverJS %>"></script>
+  <% for (const entry of latestEntryJS) { %>
-  <%= renderTemplate('_style_base') %>
+    <script type="module" src="<%= entry %>"></script>
+  <% } %>
+  <%= renderTemplate("../../../src/html/_style_base.html.template") %>
   <style>
     body {
       background-color: white;

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

@@ -1,16 +1,10 @@
+import "@material/mwc-button/mwc-button";
+import { mdiCast, mdiCastConnected } from "@mdi/js";
 import "@polymer/paper-item/paper-icon-item";
 import "@polymer/paper-listbox/paper-listbox";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, property, state } from "lit/decorators";
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
   castSendShowLovelaceView,
@@ -24,6 +18,7 @@ import {
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { toggleAttribute } from "../../../../src/common/dom/toggle_attribute";
 import "../../../../src/components/ha-icon";
+import "../../../../src/components/ha-svg-icon";
 import {
   getLegacyLovelaceCollection,
   getLovelaceCollection,
@@ -32,7 +27,6 @@ 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 +36,19 @@ 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>
+            <p>There were no suitable Chromecast devices to cast to found.</p>
-              There were no suitable Chromecast devices to cast to found.
-            </p>
           `
         : undefined;
 
@@ -83,7 +75,7 @@ class HcCast extends LitElement {
           ? html`
               <p class="center-item">
                 <mwc-button raised @click=${this._handleLaunch}>
-                  <ha-icon icon="hass:cast"></ha-icon>
+                  <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
                   Start Casting
                 </mwc-button>
               </p>
@@ -96,7 +88,7 @@ class HcCast extends LitElement {
               >
                 ${(this.lovelaceConfig
                   ? this.lovelaceConfig.views
-                  : [generateDefaultViewConfig([], [], [], {}, () => "")]
+                  : [generateDefaultViewConfig({}, {}, {}, {}, () => "")]
                 ).map(
                   (view, idx) => html`
                     <paper-icon-item
@@ -121,7 +113,7 @@ class HcCast extends LitElement {
           ${this.castManager.status
             ? html`
                 <mwc-button @click=${this._handleLaunch}>
-                  <ha-icon icon="hass:cast-connected"></ha-icon>
+                  <ha-svg-icon .path=${mdiCastConnected}></ha-svg-icon>
                   Manage
                 </mwc-button>
               `
@@ -189,7 +181,7 @@ class HcCast extends LitElement {
   private async _handlePickView(ev: Event) {
     const path = (ev.currentTarget as any).getAttribute("data-path");
     await ensureConnectedCastSession(this.castManager!, this.auth!);
-    castSendShowLovelaceView(this.castManager, path);
+    castSendShowLovelaceView(this.castManager, this.auth.data.hassUrl, path);
   }
 
   private async _handleLogout() {
@@ -201,12 +193,12 @@ 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;
@@ -243,7 +235,7 @@ class HcCast extends LitElement {
         color: var(--secondary-text-color);
       }
 
-      mwc-button ha-icon {
+      mwc-button ha-svg-icon {
         margin-right: 8px;
         height: 18px;
       }

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

@@ -1,4 +1,5 @@
 import "@material/mwc-button";
+import { mdiCastConnected, mdiCast } from "@mdi/js";
 import "@polymer/paper-input/paper-input";
 import {
   Auth,
@@ -11,22 +12,15 @@ import {
   getAuth,
   getAuthOptions,
 } from "home-assistant-js-websocket";
-import {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, state } from "lit/decorators";
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  TemplateResult,
-  internalProperty,
-} from "lit-element";
 import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
   loadTokens,
   saveTokens,
 } from "../../../../src/common/auth/token_storage";
-import "../../../../src/components/ha-icon";
+import "../../../../src/components/ha-svg-icon";
 import "../../../../src/layouts/hass-loading-screen";
 import { registerServiceWorker } from "../../../../src/util/register-service-worker";
 import "./hc-layout";
@@ -60,19 +54,19 @@ 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 +80,7 @@ export class HcConnect extends LitElement {
           </div>
           <div class="card-actions">
             <a href="/">
-              <mwc-button>
+              <mwc-button> Retry </mwc-button>
-                Retry
-              </mwc-button>
             </a>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleLogout}>Log out</mwc-button>
@@ -136,11 +128,11 @@ export class HcConnect extends LitElement {
           <div class="card-actions">
             <mwc-button @click=${this._handleDemo}>
               Show Demo
-              <ha-icon
+              <ha-svg-icon
-                .icon=${this.castManager.castState === "CONNECTED"
+                .path=${this.castManager.castState === "CONNECTED"
-                  ? "hass:cast-connected"
+                  ? mdiCastConnected
-                  : "hass:cast"}
+                  : mdiCast}
-              ></ha-icon>
+              ></ha-svg-icon>
             </mwc-button>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleConnect}>Authorize</mwc-button>
@@ -198,7 +190,7 @@ export class HcConnect extends LitElement {
 
   private _handleInputKeyDown(ev: KeyboardEvent) {
     // Handle pressing enter.
-    if (ev.keyCode === 13) {
+    if (ev.key === "Enter") {
       this._handleConnect();
     }
   }
@@ -221,7 +213,7 @@ 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 +241,7 @@ 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 +260,7 @@ 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 +286,12 @@ 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);
@@ -316,7 +308,7 @@ export class HcConnect extends LitElement {
         color: darkred;
       }
 
-      mwc-button ha-icon {
+      mwc-button ha-svg-icon {
         margin-left: 8px;
       }
 

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

@@ -4,15 +4,8 @@ import {
   getUser,
   HassUser,
 } from "home-assistant-js-websocket";
-import {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, property } from "lit/decorators";
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
 import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
@@ -29,7 +22,11 @@ class HcLayout extends LitElement {
     return html`
       <ha-card>
         <div class="layout">
-          <img class="hero" src="/images/google-nest-hub.png" />
+          <img
+            class="hero"
+            alt="A Google Nest Hub with a Home Assistant dashboard on its screen"
+            src="/images/google-nest-hub.png"
+          />
           <h1 class="card-header">
             Home Assistant Cast${this.subtitle ? ` – ${this.subtitle}` : ""}
             ${this.auth
@@ -51,7 +48,7 @@ class HcLayout extends LitElement {
       <div class="footer">
         <a href="./faq.html">Frequently Asked Questions</a> – Found a bug?
         <a
-          href="https://github.com/home-assistant/home-assistant-polymer/issues"
+          href="https://github.com/home-assistant/frontend/issues"
           target="_blank"
           >Let us know!</a
         >
@@ -69,7 +66,7 @@ class HcLayout extends LitElement {
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: flex;
@@ -98,8 +95,12 @@ 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/media/entrypoint.ts

@@ -0,0 +1,24 @@
+import { cast } from "chromecast-caf-receiver";
+
+const castContext = cast.framework.CastReceiverContext.getInstance();
+
+const playerManager = castContext.getPlayerManager();
+
+playerManager.setMessageInterceptor(
+  cast.framework.messages.MessageType.LOAD,
+  (loadRequestData) => {
+    const media = loadRequestData.media;
+    // Special handling if it came from Google Assistant
+    if (media.entity) {
+      media.contentId = media.entity;
+      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.contentType = "application/vnd.apple.mpegurl";
+      // @ts-ignore
+      media.hlsVideoSegmentFormat =
+        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+    }
+    return loadRequestData;
+  }
+);
+
+castContext.start();

cast/src/receiver/cast_context.ts

@@ -1,2 +1,3 @@
-/* eslint-disable no-undef */
+import { cast } from "chromecast-caf-receiver";
+
 export const castContext = cast.framework.CastReceiverContext.getInstance();

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()
+  const touchSupported =
-    .touch_input_supported;
+    castContext.getDeviceCapabilities().touch_input_supported;
   return {
     views: [
       {

cast/src/receiver/entrypoint.ts

@@ -1,4 +1,4 @@
-/* eslint-disable no-undef */
+import { cast } from "chromecast-caf-receiver";
 import { CAST_NS } from "../../../src/cast/const";
 import { HassMessage } from "../../../src/cast/receiver_messages";
 import "../../../src/resources/custom-card-support";
@@ -8,6 +8,9 @@ import { ReceivedMessage } from "./types";
 
 const lovelaceController = new HcMain();
 document.body.append(lovelaceController);
+lovelaceController.addEventListener("cast-view-changed", (ev) => {
+  playDummyMedia(ev.detail.title);
+});
 
 const mediaPlayer = document.createElement("cast-media-player");
 mediaPlayer.style.display = "none";
@@ -28,6 +31,31 @@ const setTouchControlsVisibility = (visible: boolean) => {
   }
 };
 
+let timeOut: number | undefined;
+
+const playDummyMedia = (viewTitle?: string) => {
+  const loadRequestData = new cast.framework.messages.LoadRequestData();
+  loadRequestData.autoplay = true;
+  loadRequestData.media = new cast.framework.messages.MediaInformation();
+  loadRequestData.media.contentId =
+    "https://cast.home-assistant.io/images/google-nest-hub.png";
+  loadRequestData.media.contentType = "image/jpeg";
+  loadRequestData.media.streamType = cast.framework.messages.StreamType.NONE;
+  const metadata = new cast.framework.messages.GenericMediaMetadata();
+  metadata.title = viewTitle;
+  loadRequestData.media.metadata = metadata;
+
+  loadRequestData.requestId = 0;
+  playerManager.load(loadRequestData);
+  if (timeOut) {
+    clearTimeout(timeOut);
+    timeOut = undefined;
+  }
+  if (castContext.getDeviceCapabilities().touch_input_supported) {
+    timeOut = window.setTimeout(() => playDummyMedia(viewTitle), 540000); // repeat every 9 minutes to keep it active (gets deactivated after 10 minutes)
+  }
+};
+
 const showLovelaceController = () => {
   mediaPlayer.style.display = "none";
   lovelaceController.style.display = "initial";
@@ -51,6 +79,7 @@ const showMediaPlayer = () => {
       --progress-color: #03a9f4;
       --splash-image: url('https://home-assistant.io/images/cast/splash.png');
       --splash-size: cover;
+      --background-color: #41bdf5;
     }
     `;
     document.head.appendChild(style);
@@ -63,22 +92,6 @@ options.customNamespaces = {
   [CAST_NS]: cast.framework.system.MessageType.JSON,
 };
 
-// The docs say we need to set options.touchScreenOptimizeApp = true
-// https://developers.google.com/cast/docs/caf_receiver/customize_ui#accessing_ui_controls
-// This doesn't work.
-// @ts-ignore
-options.touchScreenOptimizedApp = true;
-
-// The class reference say we can set a uiConfig in options to set it
-// https://developers.google.com/cast/docs/reference/caf_receiver/cast.framework.CastReceiverOptions#uiConfig
-// This doesn't work either.
-// @ts-ignore
-options.uiConfig = new cast.framework.ui.UiConfig();
-// @ts-ignore
-options.uiConfig.touchScreenOptimizedApp = true;
-
-castContext.setInactivityTimeout(86400); // 1 day
-
 castContext.addCustomMessageListener(
   CAST_NS,
   // @ts-ignore
@@ -103,6 +116,12 @@ const playerManager = castContext.getPlayerManager();
 playerManager.setMessageInterceptor(
   cast.framework.messages.MessageType.LOAD,
   (loadRequestData) => {
+    if (
+      loadRequestData.media.contentId ===
+      "https://cast.home-assistant.io/images/google-nest-hub.png"
+    ) {
+      return loadRequestData;
+    }
     // We received a play media command, hide Lovelace and show media player
     showMediaPlayer();
     const media = loadRequestData.media;

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

@@ -1,10 +1,5 @@
-import {
+import { html, nothing } from "lit";
-  customElement,
+import { customElement, property, state } from "lit/decorators";
-  html,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
 import { mockHistory } from "../../../../demo/src/stubs/history";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import {
@@ -21,11 +16,11 @@ import "./hc-lovelace";
 class HcDemo extends HassElement {
   @property({ attribute: false }) public lovelacePath!: string;
 
-  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
+  @state() private _lovelaceConfig?: LovelaceConfig;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this._lovelaceConfig) {
-      return html``;
+      return nothing;
     }
     return html`
       <hc-lovelace
@@ -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 {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, property } from "lit/decorators";
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
 import { HomeAssistant } from "../../../../src/types";
 
 @customElement("hc-launch-screen")
@@ -19,6 +12,7 @@ class HcLaunchScreen extends LitElement {
     return html`
       <div class="container">
         <img
+          alt="Home Assistant logo on left, Nabu Casa logo on right, and red heart in center"
           src="https://www.home-assistant.io/images/blog/2018-09-thinking-big/social.png"
         />
         <div class="status">
@@ -29,7 +23,7 @@ class HcLaunchScreen extends LitElement {
     `;
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: block;

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

@@ -1,18 +1,15 @@
-import {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, property, query } from "lit/decorators";
-  CSSResult,
+import { fireEvent } from "../../../../src/common/dom/fire_event";
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
 import { HomeAssistant } from "../../../../src/types";
 import "./hc-launch-screen";
 
+(window as any).loadCardHelpers = () =>
+  import("../../../../src/panels/lovelace/custom-card-helpers");
+
 @customElement("hc-lovelace")
 class HcLovelace extends LitElement {
   @property({ attribute: false }) public hass!: HomeAssistant;
@@ -21,7 +18,9 @@ class HcLovelace extends LitElement {
 
   @property() public viewPath?: string | number;
 
-  public urlPath?: string | null;
+  @property() public urlPath: string | null = null;
+
+  @query("hui-view") private _huiView?: HTMLElement;
 
   protected render(): TemplateResult {
     const index = this._viewIndex;
@@ -35,11 +34,12 @@ class HcLovelace extends LitElement {
     }
     const lovelace: Lovelace = {
       config: this.lovelaceConfig,
+      rawConfig: this.lovelaceConfig,
       editMode: false,
-      urlPath: this.urlPath!,
+      urlPath: this.urlPath,
       enableFullEditMode: () => undefined,
       mode: "storage",
-      language: "en",
+      locale: this.hass.locale,
       saveConfig: async () => undefined,
       deleteConfig: async () => undefined,
       setEditMode: () => undefined,
@@ -60,17 +60,32 @@ class HcLovelace extends LitElement {
       const index = this._viewIndex;
 
       if (index !== undefined) {
+        const dashboardTitle = this.lovelaceConfig.title || this.urlPath;
+
+        const viewTitle =
+          this.lovelaceConfig.views[index].title ||
+          this.lovelaceConfig.views[index].path;
+
+        fireEvent(this, "cast-view-changed", {
+          title:
+            dashboardTitle || viewTitle
+              ? `${dashboardTitle || ""}${
+                  dashboardTitle && viewTitle ? ": " : ""
+                }${viewTitle || ""}`
+              : undefined,
+        });
+
         const configBackground =
           this.lovelaceConfig.views[index].background ||
           this.lovelaceConfig.background;
 
         if (configBackground) {
-          (this.shadowRoot!.querySelector(
+          this._huiView!.style.setProperty(
-            "hui-view"
-          ) as HTMLElement)!.style.setProperty(
             "--lovelace-background",
             configBackground
           );
+        } else {
+          this._huiView!.style.removeProperty("--lovelace-background");
         }
       }
     }
@@ -90,10 +105,11 @@ 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;
@@ -102,12 +118,22 @@ class HcLovelace extends LitElement {
       :host > * {
         flex: 1;
       }
+      hui-view {
+        background: var(--lovelace-background, var(--primary-background-color));
+      }
     `;
   }
 }
 
+export interface CastViewChanged {
+  title: string | undefined;
+}
+
 declare global {
   interface HTMLElementTagNameMap {
     "hc-lovelace": HcLovelace;
   }
+  interface HASSDomEvents {
+    "cast-view-changed": CastViewChanged;
+  }
 }

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

@@ -3,12 +3,8 @@ import {
   getAuth,
   UnsubscribeFunc,
 } from "home-assistant-js-websocket";
-import {
+import { html, TemplateResult } from "lit";
-  customElement,
+import { customElement, state } from "lit/decorators";
-  html,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
 import { CAST_NS } from "../../../../src/cast/const";
 import {
   ConnectMessage,
@@ -17,7 +13,11 @@ import {
   ShowDemoMessage,
   ShowLovelaceViewMessage,
 } from "../../../../src/cast/receiver_messages";
-import { ReceiverStatusMessage } from "../../../../src/cast/sender_messages";
+import {
+  ReceiverErrorCode,
+  ReceiverErrorMessage,
+  ReceiverStatusMessage,
+} from "../../../../src/cast/sender_messages";
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import {
@@ -33,21 +33,22 @@ import { castContext } from "../cast_context";
 import "./hc-launch-screen";
 
 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;
+
+  @state() private _urlPath?: string | null;
+
+  private _hassUUID?: string;
 
   private _unsubLovelace?: UnsubscribeFunc;
 
-  private _urlPath?: string | null;
-
   public processIncomingMessage(msg: HassMessage) {
     if (msg.type === "connect") {
       this._handleConnectMessage(msg);
@@ -72,8 +73,10 @@ export class HcMain extends HassElement {
       !this._lovelaceConfig ||
       this._lovelacePath === null ||
       // Guard against part of HA not being loaded yet.
-      (this.hass &&
+      !this.hass ||
-        (!this.hass.states || !this.hass.config || !this.hass.services))
+      !this.hass.states ||
+      !this.hass.config ||
+      !this.hass.services
     ) {
       return html`
         <hc-launch-screen
@@ -111,6 +114,7 @@ export class HcMain extends HassElement {
         this._sendStatus();
       }
     });
+    this.addEventListener("dialog-closed", this._dialogClosed);
   }
 
   private _sendStatus(senderId?: string) {
@@ -122,7 +126,8 @@ export class HcMain extends HassElement {
 
     if (this.hass) {
       status.hassUrl = this.hass.auth.data.hassUrl;
-      status.lovelacePath = this._lovelacePath!;
+      status.hassUUID = this._hassUUID;
+      status.lovelacePath = this._lovelacePath;
       status.urlPath = this._urlPath;
     }
 
@@ -135,7 +140,43 @@ export class HcMain extends HassElement {
     }
   }
 
+  private _sendError(
+    error_code: number,
+    error_message: string,
+    senderId?: string
+  ) {
+    const error: ReceiverErrorMessage = {
+      type: "receiver_error",
+      error_code,
+      error_message,
+    };
+
+    if (senderId) {
+      this.sendMessage(senderId, error);
+    } else {
+      for (const sender of castContext.getSenders()) {
+        this.sendMessage(sender.id, error);
+      }
+    }
+  }
+
+  private _dialogClosed = () => {
+    document.body.setAttribute("style", "overflow-y: auto !important");
+  };
+
   private async _handleGetStatusMessage(msg: GetStatusMessage) {
+    if (
+      (this.hass && msg.hassUUID && msg.hassUUID !== this._hassUUID) ||
+      (this.hass && msg.hassUrl && msg.hassUrl !== this.hass.auth.data.hassUrl)
+    ) {
+      this._error = "Not connected to the same Home Assistant instance.";
+      this._sendError(
+        ReceiverErrorCode.WRONG_INSTANCE,
+        this._error,
+        msg.senderId!
+      );
+    }
+
     this._sendStatus(msg.senderId!);
   }
 
@@ -152,15 +193,20 @@ export class HcMain extends HassElement {
           expires_in: 0,
         }),
       });
-    } catch (err) {
+      this._hassUUID = msg.hassUUID;
-      this._error = this._getErrorMessage(err);
+    } catch (err: any) {
+      const errorMessage = this._getErrorMessage(err);
+      this._error = errorMessage;
+      this._sendError(err, errorMessage);
       return;
     }
     let connection;
     try {
       connection = await createConnection({ auth });
-    } catch (err) {
+    } catch (err: any) {
-      this._error = this._getErrorMessage(err);
+      const errorMessage = this._getErrorMessage(err);
+      this._error = errorMessage;
+      this._sendError(err, errorMessage);
       return;
     }
     if (this.hass) {
@@ -172,24 +218,65 @@ export class HcMain extends HassElement {
   }
 
   private async _handleShowLovelaceMessage(msg: ShowLovelaceViewMessage) {
+    this._showDemo = false;
     // We should not get this command before we are connected.
     // Means a client got out of sync. Let's send status to them.
     if (!this.hass) {
       this._sendStatus(msg.senderId!);
       this._error = "Cannot show Lovelace because we're not connected.";
+      this._sendError(
+        ReceiverErrorCode.NOT_CONNECTED,
+        this._error,
+        msg.senderId!
+      );
       return;
     }
+
+    if (
+      (msg.hassUUID && msg.hassUUID !== this._hassUUID) ||
+      (msg.hassUrl && msg.hassUrl !== this.hass.auth.data.hassUrl)
+    ) {
+      this._sendStatus(msg.senderId!);
+      this._error =
+        "Cannot show Lovelace because we're not connected to the same Home Assistant instance.";
+      this._sendError(
+        ReceiverErrorCode.WRONG_INSTANCE,
+        this._error,
+        msg.senderId!
+      );
+      return;
+    }
+
+    this._error = undefined;
     if (msg.urlPath === "lovelace") {
       msg.urlPath = null;
     }
+    this._lovelacePath = msg.viewPath;
+    if (msg.urlPath === "energy") {
+      this._lovelaceConfig = {
+        views: [
+          {
+            strategy: {
+              type: "energy",
+              options: { show_date_selection: true },
+            },
+          },
+        ],
+      };
+      this._urlPath = "energy";
+      this._lovelacePath = 0;
+      this._sendStatus();
+      return;
+    }
     if (!this._unsubLovelace || this._urlPath !== msg.urlPath) {
       this._urlPath = msg.urlPath;
+      this._lovelaceConfig = undefined;
       if (this._unsubLovelace) {
         this._unsubLovelace();
       }
       const llColl = atLeastVersion(this.hass.connection.haVersion, 0, 107)
-        ? getLovelaceCollection(this.hass!.connection, msg.urlPath)
+        ? getLovelaceCollection(this.hass.connection, msg.urlPath)
-        : getLegacyLovelaceCollection(this.hass!.connection);
+        : getLegacyLovelaceCollection(this.hass.connection);
       // We first do a single refresh because we need to check if there is LL
       // configuration.
       try {
@@ -197,9 +284,17 @@ export class HcMain extends HassElement {
         this._unsubLovelace = llColl.subscribe((lovelaceConfig) =>
           this._handleNewLovelaceConfig(lovelaceConfig)
         );
-      } catch (err) {
+      } catch (err: any) {
-        // eslint-disable-next-line
+        if (
-        console.log("Error fetching Lovelace configuration", err, msg);
+          atLeastVersion(this.hass.connection.haVersion, 0, 107) &&
+          err.code !== "config_not_found"
+        ) {
+          // eslint-disable-next-line
+          console.log("Error fetching Lovelace configuration", err, msg);
+          this._error = `Error fetching Lovelace configuration: ${err.message}`;
+          this._sendError(ReceiverErrorCode.FETCH_CONFIG_FAILED, this._error);
+          return;
+        }
         // Generate a Lovelace config.
         this._unsubLovelace = () => undefined;
         await this._generateLovelaceConfig();
@@ -214,23 +309,27 @@ export class HcMain extends HassElement {
         loadLovelaceResources(resources, this.hass!.auth.data.hassUrl);
       }
     }
-    this._showDemo = false;
-    this._lovelacePath = msg.viewPath;
 
     this._sendStatus();
   }
 
   private async _generateLovelaceConfig() {
-    const { generateLovelaceConfigFromHass } = await import(
+    const { generateLovelaceDashboardStrategy } = await import(
-      "../../../../src/panels/lovelace/common/generate-lovelace-config"
+      "../../../../src/panels/lovelace/strategies/get-strategy"
     );
     this._handleNewLovelaceConfig(
-      await generateLovelaceConfigFromHass(this.hass!)
+      await generateLovelaceDashboardStrategy(
+        {
+          hass: this.hass!,
+          narrow: false,
+        },
+        "original-states"
+      )
     );
   }
 
   private _handleNewLovelaceConfig(lovelaceConfig: LovelaceConfig) {
-    castContext.setApplicationState(lovelaceConfig.title!);
+    castContext.setApplicationState(lovelaceConfig.title || "");
     this._lovelaceConfig = lovelaceConfig;
   }
 

cast/src/receiver/second-load.ts

@@ -1,4 +1,3 @@
-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";

cast/webpack.config.js

@@ -1,8 +1,8 @@
-const { createCastConfig } = require("../build-scripts/webpack.js");
+import webpack from "../build-scripts/webpack.cjs";
-const { isProdBuild, isStatsBuild } = require("../build-scripts/env.js");
+import env from "../build-scripts/env.cjs";
 
-module.exports = createCastConfig({
+export default webpack.createCastConfig({
-  isProdBuild: isProdBuild(),
+  isProdBuild: env.isProdBuild(),
-  isStatsBuild: isStatsBuild(),
+  isStatsBuild: env.isStatsBuild(),
   latestBuild: true,
 });

demo/rollup.config.js

@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
+import rollup from "../build-scripts/rollup.cjs";
-const env = require("../build-scripts/env.js");
+import env from "../build-scripts/env.cjs";
 
 const config = rollup.createDemoConfig({
   isProdBuild: env.isProdBuild(),
@@ -7,4 +7,4 @@ const config = rollup.createDemoConfig({
   isStatsBuild: env.isStatsBuild(),
 });
 
-module.exports = { ...config.inputOptions, output: config.outputOptions };
+export default { ...config.inputOptions, output: config.outputOptions };

demo/script/size_stats

@@ -6,6 +6,9 @@ set -e
 
 cd "$(dirname "$0")/.."
 
-STATS=1 NODE_ENV=production ../node_modules/.bin/webpack --profile --json > compilation-stats.json
+export STATS=1
-npx webpack-bundle-analyzer compilation-stats.json dist/frontend_latest
+statsfile="compilation-stats-demo.json"
-rm compilation-stats.json
+
+./node_modules/.bin/webpack-cli --profile --node-env=production --json=$statsfile
+npx webpack-bundle-analyzer $statsfile dist/frontend_latest
+rm -f $statsfile

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",
@@ -496,7 +508,7 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
         origin_addresses: ["XYZ"],
         status: "OK",
         mode: "driving",
-        units: "imperial",
+        units: "us_customary",
         duration_in_traffic: "41 mins",
         duration: "44 mins",
         distance: "34.3 mi",
@@ -515,7 +527,7 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
         origin_addresses: ["XYZ"],
         status: "OK",
         mode: "driving",
-        units: "imperial",
+        units: "us_customary",
         duration_in_traffic: "37 mins",
         duration: "37 mins",
         distance: "30.2 mi",