Submit on enter

* Unsubscribe from supervisor collection immediately

* bump home-assistant-js-websocket

.browserslistrc

@@ -0,0 +1,39 @@
+[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 KaiOS, QQ, and UC browsers due to lack of sufficient feature support data
+# Babel ignores these automatically, but we need here for Webpack to output ESM with dynamic imports
+not KaiOS > 0
+not QQAndroid > 0
+not UCAndroid > 0
+
+# 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

@@ -1,13 +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
+FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.11
 
 ENV \
   DEBIAN_FRONTEND=noninteractive \
   DEVCONTAINER=true \
   PATH=$PATH:./node_modules/.bin
-
-# Install nvm
-COPY .nvmrc /tmp/.nvmrc
-RUN \
-  su vscode -c \
-    "source /usr/local/share/nvm/nvm.sh && nvm install $(cat /tmp/.nvmrc) 2>&1"

.devcontainer/devcontainer.json

@@ -5,7 +5,7 @@
     "context": ".."
   },
   "appPort": "8124:8123",
-  "postCreateCommand": "script/bootstrap",
+  "postStartCommand": "script/bootstrap",
   "containerEnv": {
     "WORKSPACE_DIRECTORY": "${containerWorkspaceFolder}"
   },

.eslintrc.json

@@ -20,7 +20,7 @@
   "settings": {
     "import/resolver": {
       "webpack": {
-        "config": "./webpack.config.js"
+        "config": "./webpack.config.cjs"
       }
     }
   },
@@ -59,7 +59,6 @@
     "prefer-destructuring": "off",
     "no-restricted-globals": [2, "event"],
     "prefer-promise-reject-errors": "off",
-    "no-unsafe-optional-chaining": "warn",
     "import/prefer-default-export": "off",
     "import/no-default-export": "off",
     "import/no-unresolved": "off",
@@ -120,7 +119,6 @@
     "lit/no-template-map": "off",
     "lit/no-native-attributes": "warn",
     "lit/no-this-assign-in-render": "warn",
-    "lit/prefer-nothing": "warn",
     "lit-a11y/click-events-have-key-events": ["off"],
     "lit-a11y/no-autofocus": "off",
     "lit-a11y/alt-text": "warn",

.github/dependabot.yml

@@ -6,16 +6,3 @@ updates:
       interval: weekly
       time: "06:00"
     open-pull-requests-limit: 10
-  - package-ecosystem: "npm"
-    directory: "/"
-    schedule:
-      interval: "daily"
-      time: "03:00"
-    open-pull-requests-limit: 10
-    labels:
-      - "dependencies"
-    ignore:
-      # Ignore rollup and plugins until everything else is updated
-      - dependency-name: "*rollup*"
-      - dependency-name: "@rollup/*"
-      - dependency-name: "serve"

.github/release-drafter.yml

@@ -1,3 +1,8 @@
+categories:
+  - title: 'Dependency updates'
+    collapse-after: 3
+    labels:
+      - 'dependencies'
 template: |
   ## What's Changed
 

.github/workflows/cast_deployment.yaml

@@ -9,7 +9,6 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -22,14 +21,14 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
         with:
           ref: dev
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -58,14 +57,14 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
         with:
           ref: master
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/ci.yaml

@@ -11,7 +11,6 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -25,11 +24,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/checkout@v3.5.3
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -48,11 +47,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/checkout@v3.5.3
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -66,11 +65,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/checkout@v3.5.3
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -84,11 +83,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/checkout@v3.5.3
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable

.github/workflows/codeql-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3.3.0
+      uses: actions/checkout@v3.5.3
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/demo_deployment.yaml

@@ -10,27 +10,26 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
   deploy_dev:
     runs-on: ubuntu-latest
     name: Demo Development
-    if: github.event_name != 'push' || github.ref != 'master'
+    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@v3.3.0
+        uses: actions/checkout@v3.5.3
         with:
           ref: dev
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -53,20 +52,20 @@ jobs:
   deploy_master:
     runs-on: ubuntu-latest
     name: Demo Production
-    if: github.event_name == 'push' && github.ref == 'master'
+    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@v3.3.0
+        uses: actions/checkout@v3.5.3
         with:
           ref: master
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/design_deployment.yaml

@@ -6,7 +6,6 @@ on:
     - cron: "0 0 * * *"
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -17,12 +16,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/design_preview.yaml

@@ -11,7 +11,6 @@ on:
       - dev
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -22,12 +21,12 @@ jobs:
     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@v3.3.0
+        uses: actions/checkout@v3.5.3
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/lock.yml

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

.github/workflows/nightly.yaml

@@ -6,8 +6,7 @@ on:
     - cron: "0 1 * * *"
 
 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.11"
   NODE_OPTIONS: --max_old_space_size=6144
 
 permissions:
@@ -21,17 +20,17 @@ jobs:
       contents: write
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -43,7 +42,7 @@ jobs:
           LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
 
       - name: Bump version
-        run: script/version_bump.js nightly
+        run: script/version_bump.cjs nightly
 
       - name: Build nightly Python wheels
         run: |

.github/workflows/release-drafter.yaml

@@ -5,8 +5,17 @@ on:
     branches:
       - dev
 
+permissions:
+  contents: read
+
 jobs:
   update_release_draft:
+    permissions:
+      # write permission for contents is required to create a github release
+      contents: write
+      # write permission for pull-requests is required for autolabeler
+      # otherwise, read permission is required at least
+      pull-requests: read
     runs-on: ubuntu-latest
     steps:
       - uses: release-drafter/release-drafter@v5

.github/workflows/release.yaml

@@ -6,8 +6,7 @@ on:
       - published
 
 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.11"
   NODE_OPTIONS: --max_old_space_size=6144
 
 # Set default workflow permissions
@@ -24,7 +23,7 @@ jobs:
       contents: write # Required to upload release assets
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
 
       - name: Verify version
         uses: home-assistant/actions/helpers/verify-version@master
@@ -34,10 +33,10 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setup Node
         uses: actions/setup-node@v3.6.0
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -75,9 +74,9 @@ jobs:
           echo "home-assistant-frontend==$version" > ./requirements.txt
 
       - name: Build wheels
-        uses: home-assistant/wheels@2022.10.1
+        uses: home-assistant/wheels@2023.04.0
         with:
-          abi: cp310
+          abi: cp311
           tag: musllinux_1_2
           arch: amd64
           wheels-key: ${{ secrets.WHEELS_KEY }}

.github/workflows/stale.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 90 days stale policy
-        uses: actions/stale@v7.0.0
+        uses: actions/stale@v8.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           days-before-stale: 90

.github/workflows/translations.yaml

@@ -7,19 +7,15 @@ on:
     paths:
       - src/translations/en.json
 
-env:
-  NODE_VERSION: 16
-
 jobs:
   upload:
     name: Upload
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.5.3
 
       - name: Upload Translations
         run: |
           export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
-
           ./script/translations_upload_base

.nvmrc

@@ -1 +1 @@
-16
+18

.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

@@ -1,3 +1,5 @@
+defaultSemverRangePrefix: ""
+
 nodeLinker: node-modules
 
 plugins:
@@ -6,4 +8,4 @@ plugins:
   - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
     spec: "@yarnpkg/plugin-interactive-tools"
 
-yarnPath: .yarn/releases/yarn-3.3.1.cjs
+yarnPath: .yarn/releases/yarn-3.6.0.cjs

build-scripts/bundle.cjs

@@ -1,6 +1,15 @@
 const path = require("path");
-const env = require("./env.js");
-const paths = require("./paths.js");
+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
@@ -53,60 +62,94 @@ module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
   ...defineOverlay,
 });
 
-module.exports.terserOptions = (latestBuild) => ({
+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 ? undefined : 5,
-  output: { comments: false },
+  ecma: latestBuild ? 2015 : 5,
+  module: latestBuild,
+  format: { comments: false },
+  sourceMap: !isTestBuild,
 });
 
-module.exports.babelOptions = ({ latestBuild }) => ({
+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: [
-    !latestBuild && [
+    [
       "@babel/preset-env",
       {
-        useBuiltIns: "entry",
-        corejs: { version: "3.28", proposals: true },
+        useBuiltIns: latestBuild ? false : "entry",
+        corejs: latestBuild ? false : { version: "3.31", proposals: true },
         bugfixes: true,
       },
     ],
     "@babel/preset-typescript",
-  ].filter(Boolean),
+  ],
   plugins: [
     [
       path.resolve(
         paths.polymer_dir,
-        "build-scripts/babel-plugins/inline-constants-plugin.js"
+        "build-scripts/babel-plugins/inline-constants-plugin.cjs"
       ),
       {
         modules: ["@mdi/js"],
         ignoreModuleNotFound: true,
       },
     ],
-    // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
-    !latestBuild && [
-      "@babel/plugin-proposal-object-rest-spread",
-      { loose: true, useBuiltIns: 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
+      },
     ],
-    // Only support the syntax, Webpack will handle it.
-    "@babel/plugin-syntax-import-meta",
-    "@babel/plugin-syntax-dynamic-import",
-    "@babel/plugin-syntax-top-level-await",
-    "@babel/plugin-proposal-optional-chaining",
-    "@babel/plugin-proposal-nullish-coalescing-operator",
+    // 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 }],
-    ["@babel/plugin-proposal-private-methods", { loose: true }],
-    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
-    ["@babel/plugin-proposal-class-properties", { loose: true }],
   ].filter(Boolean),
   exclude: [
     // \\ for Windows, / for Mac OS and Linux
     /node_modules[\\/]core-js/,
     /node_modules[\\/]webpack[\\/]buildin/,
   ],
+  sourceMaps: !isTestBuild,
 });
 
+const nameSuffix = (latestBuild) => (latestBuild ? "-latest" : "-es5");
+
 const outputPath = (outputRoot, latestBuild) =>
   path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
 
@@ -114,29 +157,32 @@ 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>
-}
-*/
+  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, isWDS }) {
+  app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild, isWDS }) {
     return {
+      name: "app" + nameSuffix(latestBuild),
       entry: {
         service_worker: "./src/entrypoints/service_worker.ts",
         app: "./src/entrypoints/app.ts",
@@ -150,12 +196,14 @@ module.exports.config = {
       isProdBuild,
       latestBuild,
       isStatsBuild,
+      isTestBuild,
       isWDS,
     };
   },
 
   demo({ isProdBuild, latestBuild, isStatsBuild }) {
     return {
+      name: "demo" + nameSuffix(latestBuild),
       entry: {
         main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
       },
@@ -185,6 +233,7 @@ module.exports.config = {
     }
 
     return {
+      name: "cast" + nameSuffix(latestBuild),
       entry,
       outputPath: outputPath(paths.cast_output_root, latestBuild),
       publicPath: publicPath(latestBuild),
@@ -196,8 +245,9 @@ module.exports.config = {
     };
   },
 
-  hassio({ isProdBuild, latestBuild }) {
+  hassio({ isProdBuild, latestBuild, isStatsBuild, isTestBuild }) {
     return {
+      name: "supervisor" + nameSuffix(latestBuild),
       entry: {
         entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
       },
@@ -205,15 +255,19 @@ module.exports.config = {
       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"),
       },

build-scripts/env.cjs

@@ -1,6 +1,6 @@
 const fs = require("fs");
 const path = require("path");
-const paths = require("./paths.js");
+const paths = require("./paths.cjs");
 
 module.exports = {
   useRollup() {
@@ -17,7 +17,7 @@ module.exports = {
   isStatsBuild() {
     return process.env.STATS === "1";
   },
-  isTest() {
+  isTestBuild() {
     return process.env.IS_TEST === "true";
   },
   isNetlify() {

build-scripts/gulp/app.js

@@ -1,19 +1,16 @@
-// Run HA develop mode
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./translations.js");
-require("./locale-data.js");
-require("./gen-icons-json.js");
-require("./gather-static.js");
-require("./compress.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
-require("./wds.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./locale-data.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./wds.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-app",
@@ -25,8 +22,7 @@ gulp.task(
     gulp.parallel(
       "gen-service-worker-app-dev",
       "gen-icons-json",
-      "gen-pages-dev",
-      "gen-index-app-dev",
+      "gen-pages-app-dev",
       "build-translations",
       "build-locale-data"
     ),
@@ -50,11 +46,7 @@ gulp.task(
     "copy-static-app",
     env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
     // Don't compress running tests
-    ...(env.isTest() ? [] : ["compress-app"]),
-    gulp.parallel(
-      "gen-pages-prod",
-      "gen-index-app-prod",
-      "gen-service-worker-app-prod"
-    )
+    ...(env.isTestBuild() ? [] : ["compress-app"]),
+    gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod")
   )
 );

build-scripts/gulp/cast.js

@@ -1,14 +1,12 @@
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./translations.js");
-require("./gather-static.js");
-require("./webpack.js");
-require("./service-worker.js");
-require("./entry-html.js");
-require("./rollup.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-cast",
@@ -20,7 +18,7 @@ gulp.task(
     "translations-enable-merge-backend",
     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"
   )
 );
@@ -36,6 +34,6 @@ gulp.task(
     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

@@ -1,37 +1,37 @@
-const del = import("del");
-const gulp = require("gulp");
-const paths = require("../paths");
-require("./translations");
+import { deleteSync } from "del";
+import gulp from "gulp";
+import paths from "../paths.cjs";
+import "./translations.js";
 
 gulp.task(
   "clean",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.app_output_root, paths.build_dir])
+    deleteSync([paths.app_output_root, paths.build_dir])
   )
 );
 
 gulp.task(
   "clean-demo",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.demo_output_root, paths.build_dir])
+    deleteSync([paths.demo_output_root, paths.build_dir])
   )
 );
 
 gulp.task(
   "clean-cast",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.cast_output_root, paths.build_dir])
+    deleteSync([paths.cast_output_root, paths.build_dir])
   )
 );
 
 gulp.task("clean-hassio", async () =>
-  (await del).deleteSync([paths.hassio_output_root, paths.build_dir])
+  deleteSync([paths.hassio_output_root, paths.build_dir])
 );
 
 gulp.task(
   "clean-gallery",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([
+    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");
-const zopfli = require("gulp-zopfli-green");
-const merge = require("merge-stream");
-const path = require("path");
-const paths = require("../paths");
+import gulp from "gulp";
+import zopfli from "gulp-zopfli-green";
+import merge from "merge-stream";
+import path from "path";
+import paths from "../paths.cjs";
 
 const zopfliOptions = { threshold: 150 };
 

build-scripts/gulp/demo.js

@@ -1,16 +1,13 @@
-// Run demo develop mode
-const gulp = require("gulp");
-
-const env = require("../env");
-
-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");
+import gulp from "gulp";
+import env from "../env.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";
 
 gulp.task(
   "develop-demo",
@@ -22,7 +19,7 @@ gulp.task(
     "translations-enable-merge-backend",
     gulp.parallel(
       "gen-icons-json",
-      "gen-index-demo-dev",
+      "gen-pages-demo-dev",
       "build-translations",
       "build-locale-data"
     ),
@@ -43,6 +40,6 @@ gulp.task(
     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

@@ -1,6 +1,6 @@
-const gulp = require("gulp");
-const fs = require("fs/promises");
-const mapStream = require("map-stream");
+import fs from "fs/promises";
+import gulp from "gulp";
+import mapStream from "map-stream";
 
 const inDirFrontend = "translations/frontend";
 const inDirBackend = "translations/backend";

build-scripts/gulp/entry-html.js

@@ -1,344 +1,233 @@
 // Tasks to generate entry HTML
-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) =>
-  path.resolve(paths.polymer_dir, "src/html/", `${tpl}.html.template`);
+import fs from "fs-extra";
+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 = (pth, data = {}, pathFunc = templatePath) => {
-  const compiled = template(readFile(pathFunc(pth)));
+const renderTemplate = (templateFile, data = {}) => {
+  const compiled = template(
+    fs.readFileSync(templateFile, { encoding: "utf-8" })
+  );
   return compiled({
     ...data,
     useRollup: env.useRollup(),
     useWDS: env.useWDS(),
-    renderTemplate,
+    // 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 = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.demo_dir, "src/html/", `${tpl}.html.template`)
+const WRAP_TAGS = { ".js": "script", ".css": "style" };
+
+const minifyHtml = (content, ext) => {
+  const wrapTag = WRAP_TAGS[ext] || "";
+  const begTag = wrapTag && `<${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 = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.cast_dir, "src/html/", `${tpl}.html.template`)
-  );
+// Function to generate a dev task for each project's configuration
+// Note Currently WDS paths are hard-coded to only work for app
+const genPagesDevTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    useWDS = false,
+    inputSub = "src/html",
+    publicRoot = ""
+  ) =>
+  async () => {
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        path.resolve(inputRoot, inputSub, `${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 = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.gallery_dir, "src/html/", `${tpl}.html.template`)
-  );
-
-const minifyHtml = (content) =>
-  minify(content, {
-    collapseWhitespace: true,
-    minifyJS: true,
-    minifyCSS: true,
-    removeComments: true,
-  });
-
-const PAGES = ["onboarding", "authorize"];
-
-gulp.task("gen-pages-dev", (done) => {
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: `/frontend_latest/${page}.js`,
-
-      es5PageJS: `/frontend_es5/${page}.js`,
-    });
-
-    fs.outputFileSync(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      content
+// Same as previous but for production builds
+// (includes minification and hashed file names from manifest)
+const genPagesProdTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    outputLatest,
+    outputES5,
+    inputSub = "src/html"
+  ) =>
+  async () => {
+    const latestManifest = fs.readJsonSync(
+      path.resolve(outputLatest, "manifest.json")
     );
-  }
-  done();
-});
+    const es5Manifest = outputES5
+      ? 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) => {
-  const latestManifest = require(path.resolve(
+// Map HTML pages to their required entrypoints
+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"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
+    paths.app_output_es5
+  )
+);
 
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: latestManifest[`${page}.js`],
+const CAST_PAGE_ENTRIES = {
+  "faq.html": ["launcher"],
+  "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(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      minifyHtml(content)
-    );
-  }
-  done();
-});
-
-gulp.task("gen-index-app-dev", (done) => {
-  let latestAppJS;
-  let latestCoreJS;
-  let latestCustomPanelJS;
-
-  if (env.useWDS()) {
-    latestAppJS = "http://localhost:8000/src/entrypoints/app.ts";
-    latestCoreJS = "http://localhost:8000/src/entrypoints/core.ts";
-    latestCustomPanelJS =
-      "http://localhost:8000/src/entrypoints/custom-panel.ts";
-  } else {
-    latestAppJS = "/frontend_latest/app.js";
-    latestCoreJS = "/frontend_latest/core.js";
-    latestCustomPanelJS = "/frontend_latest/custom-panel.js";
-  }
-
-  const content = renderTemplate("index", {
-    latestAppJS,
-    latestCoreJS,
-    latestCustomPanelJS,
-
-    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 contentMedia = renderCastTemplate("media", {
-    latestMediaJS: "/frontend_latest/media.js",
-    es5MediaJS: "/frontend_es5/media.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
-
-  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(
+gulp.task(
+  "gen-pages-cast-prod",
+  genPagesProdTask(
+    CAST_PAGE_ENTRIES,
+    paths.cast_dir,
+    paths.cast_output_root,
     paths.cast_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.cast_output_es5,
-    "manifest.json"
-  ));
+    paths.cast_output_es5
+  )
+);
 
-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: latestManifest["receiver.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
+const DEMO_PAGE_ENTRIES = { "index.html": ["main"] };
 
-  const contentMedia = renderCastTemplate("media", {
-    latestMediaJS: latestManifest["media.js"],
-    es5MediaJS: es5Manifest["media.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
+gulp.task(
+  "gen-pages-demo-dev",
+  genPagesDevTask(DEMO_PAGE_ENTRIES, paths.demo_dir, paths.demo_output_root)
+);
 
-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    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(
+gulp.task(
+  "gen-pages-demo-prod",
+  genPagesProdTask(
+    DEMO_PAGE_ENTRIES,
+    paths.demo_dir,
+    paths.demo_output_root,
     paths.demo_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.demo_output_es5,
-    "manifest.json"
-  ));
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: latestManifest["main.js"],
+    paths.demo_output_es5
+  )
+);
 
-    es5DemoJS: es5Manifest["main.js"],
-  });
-  const minified = minifyHtml(content);
+const GALLERY_PAGE_ENTRIES = { "index.html": ["entrypoint"] };
 
-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    minified
-  );
-  done();
-});
+gulp.task(
+  "gen-pages-gallery-dev",
+  genPagesDevTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root
+  )
+);
 
-gulp.task("gen-index-gallery-dev", (done) => {
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: "./frontend_latest/entrypoint.js",
-  });
+gulp.task(
+  "gen-pages-gallery-prod",
+  genPagesProdTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root,
+    paths.gallery_output_latest
+  )
+);
 
-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    content
-  );
-  done();
-});
+const HASSIO_PAGE_ENTRIES = { "entrypoint.js": ["entrypoint"] };
 
-gulp.task("gen-index-gallery-prod", (done) => {
-  const latestManifest = require(path.resolve(
-    paths.gallery_output_latest,
-    "manifest.json"
-  ));
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: latestManifest["entrypoint.js"],
-  });
-  const minified = minifyHtml(content);
+gulp.task(
+  "gen-pages-hassio-dev",
+  genPagesDevTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
+    undefined,
+    "src",
+    paths.hassio_publicPath
+  )
+);
 
-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    minified
-  );
-  done();
-});
-
-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(
+gulp.task(
+  "gen-pages-hassio-prod",
+  genPagesProdTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
     paths.hassio_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
     paths.hassio_output_es5,
-    "manifest.json"
-  ));
-  writeHassioEntrypoint(
-    latestManifest["entrypoint.js"],
-    es5Manifest["entrypoint.js"]
-  );
-});
-
-function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
-  fs.mkdirSync(paths.hassio_output_root, { recursive: true });
-  // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
-  fs.writeFileSync(
-    path.resolve(paths.hassio_output_root, "entrypoint.js"),
-    `
-function loadES5() {
-  var el = document.createElement('script');
-  el.src = '${es5Entrypoint}';
-  document.body.appendChild(el);
-}
-if (/.*Version\\/(?:11|12)(?:\\.\\d+)*.*Safari\\//.test(navigator.userAgent)) {
-    loadES5();
-} else {
-  try {
-    new Function("import('${latestEntrypoint}')")();
-  } catch (err) {
-    loadES5();
-  }
-}
-  `,
-    { encoding: "utf-8" }
-  );
-}
+    "src"
+  )
+);

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

@@ -1,14 +1,15 @@
 // Task to download the latest Lokalise translations from the nightly workflow artifacts
 
-const del = import("del");
-const fs = require("fs/promises");
-const path = require("path");
-const process = require("process");
-const gulp = require("gulp");
-const jszip = require("jszip");
-const tar = require("tar");
-const { Octokit } = require("@octokit/rest");
-const { createOAuthDeviceAuth } = require("@octokit/auth-oauth-device");
+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";
@@ -37,7 +38,7 @@ gulp.task("fetch-nightly-translations", async function () {
   // and stop if they are not old enough
   let currentArtifact;
   try {
-    currentArtifact = JSON.parse(await fs.readFile(ARTIFACT_FILE, "utf-8"));
+    currentArtifact = JSON.parse(await readFile(ARTIFACT_FILE, "utf-8"));
     const currentAge =
       (Date.now() - Date.parse(currentArtifact.created_at)) / 3600000;
     if (currentAge < MAX_AGE) {
@@ -52,7 +53,7 @@ gulp.task("fetch-nightly-translations", async function () {
   }
 
   // To store file writing promises
-  const createExtractDir = fs.mkdir(EXTRACT_DIR, { recursive: true });
+  const createExtractDir = mkdir(EXTRACT_DIR, { recursive: true });
   const writings = [];
 
   // Authenticate to GitHub using GitHub action token if it exists,
@@ -62,7 +63,7 @@ gulp.task("fetch-nightly-translations", async function () {
     tokenAuth = { token: process.env.GITHUB_TOKEN };
   } else {
     try {
-      tokenAuth = JSON.parse(await fs.readFile(TOKEN_FILE, "utf-8"));
+      tokenAuth = JSON.parse(await readFile(TOKEN_FILE, "utf-8"));
     } catch {
       if (!allowTokenSetup) {
         console.log("No token found so  build wil continue with English only");
@@ -87,7 +88,7 @@ gulp.task("fetch-nightly-translations", async function () {
       tokenAuth = await auth({ type: "oauth" });
       writings.push(
         createExtractDir.then(
-          fs.writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
+          writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
         )
       );
     }
@@ -95,7 +96,7 @@ gulp.task("fetch-nightly-translations", async function () {
 
   // Authenticate with token and request workflow runs from GitHub
   console.log("Fetching new translations...");
-  const octokit = new Octokit({
+  const octokit = new (Octokit.plugin(retry))({
     userAgent: "Fetch Nightly Translations",
     auth: tokenAuth.token,
   });
@@ -131,17 +132,13 @@ gulp.task("fetch-nightly-translations", async function () {
   }
   writings.push(
     createExtractDir.then(
-      fs.writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
+      writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
     )
   );
 
   // Remove the current translations
   const deleteCurrent = Promise.all(writings).then(
-    (await del).deleteAsync([
-      `${EXTRACT_DIR}/*`,
-      `!${ARTIFACT_FILE}`,
-      `!${TOKEN_FILE}`,
-    ])
+    deleteAsync([`${EXTRACT_DIR}/*`, `!${ARTIFACT_FILE}`, `!${TOKEN_FILE}`])
   );
 
   // Get the download URL and follow the redirect to download (stored as ArrayBuffer)

build-scripts/gulp/gallery.js

@@ -1,26 +1,23 @@
-// Run demo develop mode
-const gulp = require("gulp");
-const fs = require("fs");
-const path = require("path");
-const { marked } = require("marked");
-const glob = require("glob");
-const yaml = require("js-yaml");
-
-const env = require("../env");
-const paths = require("../paths");
-
-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");
+import fs from "fs";
+import { glob } from "glob";
+import gulp from "gulp";
+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";
 
 gulp.task("gather-gallery-pages", async function gatherPages() {
   const pageDir = path.resolve(paths.gallery_dir, "src/pages");
-  const files = glob.sync(path.resolve(pageDir, "**/*"));
+  const files = await glob(path.resolve(pageDir, "**/*"));
 
   const galleryBuild = path.resolve(paths.gallery_dir, "build");
   fs.mkdirSync(galleryBuild, { recursive: true });
@@ -89,9 +86,7 @@ gulp.task("gather-gallery-pages", async function gatherPages() {
 
   // Generate sidebar
   const sidebarPath = path.resolve(paths.gallery_dir, "sidebar.js");
-  // To make watch work during development
-  delete require.cache[sidebarPath];
-  const sidebar = require(sidebarPath);
+  const sidebar = (await import(sidebarPath)).default;
 
   const pagesToProcess = {};
   for (const key of processed) {
@@ -161,7 +156,7 @@ gulp.task(
       "gather-gallery-pages"
     ),
     "copy-static-gallery",
-    "gen-index-gallery-dev",
+    "gen-pages-gallery-dev",
     gulp.parallel(
       env.useRollup()
         ? "rollup-dev-server-gallery"
@@ -195,6 +190,6 @@ gulp.task(
     ),
     "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

@@ -1,9 +1,9 @@
 // Gulp task to gather all static files.
 
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const paths = require("../paths");
+import fs from "fs-extra";
+import gulp from "gulp";
+import path from "path";
+import paths from "../paths.cjs";
 
 const npmPath = (...parts) =>
   path.resolve(paths.polymer_dir, "node_modules", ...parts);
@@ -111,9 +111,10 @@ gulp.task("copy-translations-supervisor", async () => {
   copyTranslations(staticDir);
 });
 
-gulp.task("copy-locale-data-supervisor", async () => {
+gulp.task("copy-static-supervisor", async () => {
   const staticDir = paths.hassio_output_static;
   copyLocaleData(staticDir);
+  copyFonts(staticDir);
 });
 
 gulp.task("copy-static-app", async () => {

build-scripts/gulp/gen-icons-json.js

@@ -1,17 +1,15 @@
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs");
-const hash = require("object-hash");
+import fs from "fs";
+import gulp from "gulp";
+import hash from "object-hash";
+import path from "path";
+import paths from "../paths.cjs";
 
-const ICON_PACKAGE_PATH = path.resolve(
-  __dirname,
-  "../../node_modules/@mdi/svg/"
-);
+const ICON_PACKAGE_PATH = path.resolve("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 REMOVED_ICONS_PATH = path.resolve(__dirname, "../removedIcons.json");
+const OUTPUT_DIR = path.resolve(paths.build_dir, "mdi");
+const REMOVED_ICONS_PATH = new URL("../removedIcons.json", import.meta.url);
 
 const encoding = "utf8";
 
@@ -134,11 +132,11 @@ 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(

build-scripts/gulp/hassio.js

@@ -1,15 +1,13 @@
-const gulp = require("gulp");
-
-const env = require("../env");
-
-require("./clean.js");
-require("./gen-icons-json.js");
-require("./webpack.js");
-require("./compress.js");
-require("./rollup.js");
-require("./gather-static.js");
-require("./translations.js");
-require("./gen-icons-json.js");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-hassio",
@@ -19,11 +17,11 @@ gulp.task(
     },
     "clean-hassio",
     "gen-dummy-icons-json",
-    "gen-index-hassio-dev",
+    "gen-pages-hassio-dev",
     "build-supervisor-translations",
     "copy-translations-supervisor",
     "build-locale-data",
-    "copy-locale-data-supervisor",
+    "copy-static-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -39,10 +37,10 @@ gulp.task(
     "build-supervisor-translations",
     "copy-translations-supervisor",
     "build-locale-data",
-    "copy-locale-data-supervisor",
+    "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

@@ -1,24 +1,23 @@
-const del = import("del");
-const path = require("path");
-const gulp = require("gulp");
-const fs = require("fs");
-const paths = require("../paths");
+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 () => (await del).deleteSync([outDir]));
+gulp.task("clean-locale-data", async () => deleteSync([outDir]));
 
-gulp.task("ensure-locale-data-build-dir", (done) => {
-  if (!fs.existsSync(outDir)) {
-    fs.mkdirSync(outDir, { recursive: true });
-  }
-  done();
+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",
+  "intl-listformat": "ListFormat",
 };
 
 gulp.task("create-locale-data", (done) => {
@@ -30,11 +29,14 @@ gulp.task("create-locale-data", (done) => {
   Object.entries(modules).forEach(([module, className]) => {
     Object.keys(translationMeta).forEach((lang) => {
       try {
-        const localeData = String(
-          fs.readFileSync(
-            require.resolve(`@formatjs/${module}/locale-data/${lang}.js`)
+        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\\(`,
@@ -45,15 +47,13 @@ gulp.task("create-locale-data", (done) => {
           .replace(/\)\s*}/im, "");
         // make sure we have valid JSON
         JSON.parse(localeData);
-        if (!fs.existsSync(path.join(outDir, module))) {
-          fs.mkdirSync(path.join(outDir, module), { recursive: true });
-        }
+        fs.mkdirSync(path.join(outDir, module), { recursive: true });
         fs.writeFileSync(
           path.join(outDir, `${module}/${lang}.json`),
           localeData
         );
       } catch (e) {
-        if (e.code !== "MODULE_NOT_FOUND") {
+        if (e.code !== "ENOENT") {
           throw e;
         }
       }

build-scripts/gulp/rollup.js

@@ -1,13 +1,14 @@
 // Tasks to run Rollup
-const path = require("path");
-const gulp = require("gulp");
-const rollup = require("rollup");
-const handler = require("serve-handler");
-const http = require("http");
-const log = require("fancy-log");
-const open = require("open");
-const rollupConfig = require("../rollup");
-const paths = require("../paths");
+
+import log from "fancy-log";
+import gulp from "gulp";
+import http from "http";
+import open from "open";
+import path from "path";
+import { rollup } from "rollup";
+import handler from "serve-handler";
+import paths from "../paths.cjs";
+import rollupConfig from "../rollup.cjs";
 
 const bothBuilds = (createConfigFunc, params) =>
   gulp.series(
@@ -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

@@ -1,11 +1,12 @@
 // Generate service worker.
 // Based on manifest, create a file with the content as service_worker.js
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const workboxBuild = require("workbox-build");
-const sourceMapUrl = require("source-map-url");
-const paths = require("../paths.js");
+
+import fs from "fs-extra";
+import gulp from "gulp";
+import path from "path";
+import sourceMapUrl from "source-map-url";
+import workboxBuild from "workbox-build";
+import paths from "../paths.cjs";
 
 const swDest = path.resolve(paths.app_output_root, "service_worker.js");
 
@@ -28,10 +29,9 @@ self.addEventListener('install', (event) => {
 
 gulp.task("gen-service-worker-app-prod", async () => {
   // Read bundled source file
-  const bundleManifestLatest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
+  const bundleManifestLatest = fs.readJsonSync(
+    path.resolve(paths.app_output_latest, "manifest.json")
+  );
   let serviceWorkerContent = fs.readFileSync(
     paths.app_output_root + bundleManifestLatest["service_worker.js"],
     "utf-8"
@@ -46,10 +46,9 @@ gulp.task("gen-service-worker-app-prod", async () => {
   );
 
   // Remove ES5
-  const bundleManifestES5 = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
+  const bundleManifestES5 = fs.readJsonSync(
+    path.resolve(paths.app_output_es5, "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

@@ -1,19 +1,24 @@
-const del = import("del");
-const crypto = require("crypto");
-const path = require("path");
-const source = require("vinyl-source-stream");
-const vinylBuffer = require("vinyl-buffer");
-const gulp = require("gulp");
-const fs = require("fs");
-const flatmap = require("gulp-flatmap");
-const merge = require("gulp-merge-json");
-const rename = require("gulp-rename");
-const transform = require("gulp-json-transform");
-const { mapFiles } = require("../util");
-const env = require("../env");
-const paths = require("../paths");
-
-require("./fetch-nightly-translations");
+import { createHash } from "crypto";
+import { deleteSync } from "del";
+import {
+  mkdirSync,
+  readdirSync,
+  readFileSync,
+  renameSync,
+  writeFile,
+} from "fs";
+import gulp from "gulp";
+import flatmap from "gulp-flatmap";
+import transform from "gulp-json-transform";
+import merge from "gulp-merge-json";
+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";
@@ -33,7 +38,12 @@ gulp.task(
 
 // Panel translations which should be split from the core translations.
 const TRANSLATION_FRAGMENTS = Object.keys(
-  require("../../src/translations/en.json").ui.panel
+  JSON.parse(
+    readFileSync(
+      path.resolve(paths.polymer_dir, "src/translations/en.json"),
+      "utf-8"
+    )
+  ).ui.panel
 );
 
 function recursiveFlatten(prefix, data) {
@@ -120,17 +130,14 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", async () => (await del).deleteSync([workDir]));
+gulp.task("clean-translations", async () => deleteSync([workDir]));
 
-gulp.task("ensure-translations-build-dir", (done) => {
-  if (!fs.existsSync(workDir)) {
-    fs.mkdirSync(workDir, { recursive: true });
-  }
-  done();
+gulp.task("ensure-translations-build-dir", async () => {
+  mkdirSync(workDir, { recursive: true });
 });
 
 gulp.task("create-test-metadata", (cb) => {
-  fs.writeFile(
+  writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
       test: {
@@ -303,15 +310,14 @@ const fingerprints = {};
 
 gulp.task("build-translation-fingerprints", () => {
   // Fingerprint full file of each language
-  const files = fs.readdirSync(fullDir);
+  const files = readdirSync(fullDir);
 
   for (let i = 0; i < files.length; i++) {
     fingerprints[files[i].split(".")[0]] = {
       // In dev we create fake hashes
       hash: env.isProdBuild()
-        ? crypto
-            .createHash("md5")
-            .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
+        ? createHash("md5")
+            .update(readFileSync(path.join(fullDir, files[i]), "utf-8"))
             .digest("hex")
         : "dev",
     };
@@ -327,7 +333,7 @@ gulp.task("build-translation-fingerprints", () => {
         throw new Error(`Unable to find hash for ${filename}`);
       }
 
-      fs.renameSync(
+      renameSync(
         filename,
         `${parsed.dir}/${parsed.name}-${fingerprints[parsed.name].hash}${
           parsed.ext

build-scripts/gulp/wds.js

@@ -1,8 +1,7 @@
-// Tasks to run Rollup
-const gulp = require("gulp");
-const { startDevServer } = require("@web/dev-server");
+import gulp from "gulp";
+import { startDevServer } from "@web/dev-server";
 
-gulp.task("wds-watch-app", () => {
+gulp.task("wds-watch-app", async () => {
   startDevServer({
     config: {
       watch: true,

build-scripts/gulp/webpack.js

@@ -1,18 +1,20 @@
 // Tasks to run webpack.
-const fs = require("fs");
-const gulp = require("gulp");
-const webpack = require("webpack");
-const WebpackDevServer = require("webpack-dev-server");
-const log = require("fancy-log");
-const path = require("path");
-const paths = require("../paths");
-const {
+
+import log from "fancy-log";
+import fs from "fs";
+import gulp from "gulp";
+import path from "path";
+import webpack from "webpack";
+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 }),
@@ -104,6 +106,8 @@ gulp.task("webpack-prod-app", () =>
   prodBuild(
     bothBuilds(createAppConfig, {
       isProdBuild: true,
+      isStatsBuild: env.isStatsBuild(),
+      isTestBuild: env.isTestBuild(),
     })
   )
 );
@@ -161,6 +165,8 @@ gulp.task("webpack-prod-hassio", () =>
   prodBuild(
     bothBuilds(createHassioConfig, {
       isProdBuild: true,
+      isStatsBuild: env.isStatsBuild(),
+      isTestBuild: env.isTestBuild(),
     })
   )
 );

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/removedIcons.json

@@ -1,30 +1 @@
-[
-  {
-    "path": "M20,20H7A2,2 0 0,1 5,18V8.94L2.23,5.64C2.09,5.47 2,5.24 2,5A1,1 0 0,1 3,4H20A2,2 0 0,1 22,6V18A2,2 0 0,1 20,20M8.5,7A0.5,0.5 0 0,0 8,7.5V8.5A0.5,0.5 0 0,0 8.5,9H18.5A0.5,0.5 0 0,0 19,8.5V7.5A0.5,0.5 0 0,0 18.5,7H8.5M8.5,11A0.5,0.5 0 0,0 8,11.5V12.5A0.5,0.5 0 0,0 8.5,13H18.5A0.5,0.5 0 0,0 19,12.5V11.5A0.5,0.5 0 0,0 18.5,11H8.5M8.5,15A0.5,0.5 0 0,0 8,15.5V16.5A0.5,0.5 0 0,0 8.5,17H13.5A0.5,0.5 0 0,0 14,16.5V15.5A0.5,0.5 0 0,0 13.5,15H8.5Z",
-    "name": "android-messages"
-  },
-  {
-    "path": "M4,6H2V20A2,2 0 0,0 4,22H18V20H4V6M20,2H8A2,2 0 0,0 6,4V16A2,2 0 0,0 8,18H20A2,2 0 0,0 22,16V4A2,2 0 0,0 20,2M20,12L17.5,10.5L15,12V4H20V12Z",
-    "name": "book-variant-multiple"
-  },
-  {
-    "path": "M21,14H3V4H21M21,2H3C1.89,2 1,2.89 1,4V16A2,2 0 0,0 3,18H10L8,21V22H16V21L14,18H21A2,2 0 0,0 23,16V4C23,2.89 22.1,2 21,2Z",
-    "name": "desktop-mac"
-  },
-  {
-    "path": "M21,14V4H3V14H21M21,2A2,2 0 0,1 23,4V16A2,2 0 0,1 21,18H14L16,21V22H8V21L10,18H3C1.89,18 1,17.1 1,16V4C1,2.89 1.89,2 3,2H21M4,5H15V10H4V5M16,5H20V7H16V5M20,8V13H16V8H20M4,11H9V13H4V11M10,11H15V13H10V11Z",
-    "name": "desktop-mac-dashboard"
-  },
-  {
-    "path": "M22,24L16.75,19L17.38,21H4.5A2.5,2.5 0 0,1 2,18.5V3.5A2.5,2.5 0 0,1 4.5,1H19.5A2.5,2.5 0 0,1 22,3.5V24M12,6.8C9.32,6.8 7.44,7.95 7.44,7.95C8.47,7.03 10.27,6.5 10.27,6.5L10.1,6.33C8.41,6.36 6.88,7.53 6.88,7.53C5.16,11.12 5.27,14.22 5.27,14.22C6.67,16.03 8.75,15.9 8.75,15.9L9.46,15C8.21,14.73 7.42,13.62 7.42,13.62C7.42,13.62 9.3,14.9 12,14.9C14.7,14.9 16.58,13.62 16.58,13.62C16.58,13.62 15.79,14.73 14.54,15L15.25,15.9C15.25,15.9 17.33,16.03 18.73,14.22C18.73,14.22 18.84,11.12 17.12,7.53C17.12,7.53 15.59,6.36 13.9,6.33L13.73,6.5C13.73,6.5 15.53,7.03 16.56,7.95C16.56,7.95 14.68,6.8 12,6.8M9.93,10.59C10.58,10.59 11.11,11.16 11.1,11.86C11.1,12.55 10.58,13.13 9.93,13.13C9.29,13.13 8.77,12.55 8.77,11.86C8.77,11.16 9.28,10.59 9.93,10.59M14.1,10.59C14.75,10.59 15.27,11.16 15.27,11.86C15.27,12.55 14.75,13.13 14.1,13.13C13.46,13.13 12.94,12.55 12.94,11.86C12.94,11.16 13.45,10.59 14.1,10.59Z",
-    "name": "discord"
-  },
-  {
-    "path": "M8.06,7.78C7.5,7.78 7.17,7.73 7.08,7.64L6.66,13.73C7.19,14.05 7.88,14.3 8.72,14.5C9.56,14.71 10.78,14.77 12.38,14.67C13.97,14.58 15.63,14.23 17.34,13.64L16.55,4.22C15.67,5.09 14.38,5.91 12.66,6.66C11.13,7.31 9.81,7.69 8.72,7.78H8.06M7.97,5.34C7.28,5.94 7,6.34 7.13,6.56C7.22,6.78 7.7,6.84 8.58,6.75C9.67,6.66 10.91,6.31 12.28,5.72C13.22,5.31 14.03,4.88 14.72,4.41C15.41,3.94 15.88,3.55 16.13,3.23C16.38,2.92 16.47,2.7 16.41,2.58C16.34,2.42 16.03,2.34 15.47,2.34C14.34,2.34 12.94,2.7 11.25,3.42C9.81,4.05 8.72,4.69 7.97,5.34M17.34,2.2C17.41,2.33 17.44,2.47 17.44,2.63L18.61,17C18.61,18.73 18,20.09 16.83,21.07C15.64,22.05 14.03,22.55 12,22.55C10,22.55 8.4,22.04 7.2,21C6,20 5.39,18.64 5.39,16.92L6.09,6.47C6.09,6.22 6.2,5.94 6.42,5.63C6.64,5.31 6.84,5.06 7.03,4.88L7.36,4.59C8.33,3.78 9.5,3.08 10.88,2.5C11.81,2.08 12.73,1.77 13.62,1.57C14.5,1.37 15.3,1.3 16,1.38C16.71,1.46 17.16,1.73 17.34,2.2Z",
-    "name": "google-home"
-  },
-  {
-    "path": "M19.25,19H4.75V3H19.25M14,22H10V21H14M18,0H6A3,3 0 0,0 3,3V21A3,3 0 0,0 6,24H18A3,3 0 0,0 21,21V3A3,3 0 0,0 18,0Z",
-    "name": "tablet-android"
-  }
-]
+[]

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

@@ -103,7 +103,7 @@ module.exports = function (opts = {}) {
         }
         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}".`
           );

build-scripts/rollup.cjs

@@ -3,18 +3,18 @@ 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").babel;
+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 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");
-const paths = require("./paths");
+const bundle = require("./bundle.cjs");
+const paths = require("./paths.cjs");
 
 const extensions = [".js", ".ts"];
 
@@ -39,11 +39,18 @@ const createRollupConfig = ({
   inputOptions: {
     input: entry,
     // Some entry points contain no JavaScript. This setting silences a warning about that.
-    // https://rollupjs.org/guide/en/#preserveentrysignatures
+    // https://rollupjs.org/configuration-options/#preserveentrysignatures
     preserveEntrySignatures: false,
     plugins: [
       ignore({
-        files: bundle.emptyPackages({ latestBuild }),
+        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,
@@ -54,7 +61,7 @@ const createRollupConfig = ({
       commonjs(),
       json(),
       babel({
-        ...bundle.babelOptions({ latestBuild }),
+        ...bundle.babelOptions({ latestBuild, isProdBuild }),
         extensions,
         babelHelpers: isWDS ? "inline" : "bundled",
       }),
@@ -69,7 +76,7 @@ const createRollupConfig = ({
         }),
       !isWDS && worker(),
       !isWDS && dontHashPlugin({ dontHash }),
-      !isWDS && isProdBuild && terser(bundle.terserOptions(latestBuild)),
+      !isWDS && isProdBuild && terser(bundle.terserOptions({ latestBuild })),
       !isWDS &&
         isStatsBuild &&
         visualizer({
@@ -83,20 +90,20 @@ const createRollupConfig = ({
    * @type { import("rollup").OutputOptions }
    */
   outputOptions: {
-    // https://rollupjs.org/guide/en/#outputdir
+    // https://rollupjs.org/configuration-options/#output-dir
     dir: outputPath,
-    // https://rollupjs.org/guide/en/#outputformat
+    // https://rollupjs.org/configuration-options/#output-format
     format: latestBuild ? "es" : "systemjs",
-    // https://rollupjs.org/guide/en/#outputexternallivebindings
+    // https://rollupjs.org/configuration-options/#output-externallivebindings
     externalLiveBindings: false,
-    // https://rollupjs.org/guide/en/#outputentryfilenames
-    // https://rollupjs.org/guide/en/#outputchunkfilenames
-    // https://rollupjs.org/guide/en/#outputassetfilenames
+    // 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/guide/en/#outputsourcemap
+    // https://rollupjs.org/configuration-options/#output-sourcemap
     sourcemap: isProdBuild ? true : "inline",
   },
 });
@@ -135,4 +142,5 @@ module.exports = {
   createCastConfig,
   createHassioConfig,
   createGalleryConfig,
+  createRollupConfig,
 };

build-scripts/webpack.cjs

@@ -4,8 +4,8 @@ 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.js");
-const bundle = require("./bundle.js");
+const paths = require("./paths.cjs");
+const bundle = require("./bundle.cjs");
 
 class LogStartCompilePlugin {
   ignoredFirst = false;
@@ -22,6 +22,7 @@ class LogStartCompilePlugin {
 }
 
 const createWebpackConfig = ({
+  name,
   entry,
   outputPath,
   publicPath,
@@ -29,6 +30,7 @@ const createWebpackConfig = ({
   isProdBuild,
   latestBuild,
   isStatsBuild,
+  isTestBuild,
   isHassioBuild,
   dontHash,
 }) => {
@@ -37,10 +39,16 @@ const createWebpackConfig = ({
   }
   const ignorePackages = bundle.ignorePackages({ latestBuild });
   return {
+    name,
     mode: isProdBuild ? "production" : "development",
-    target: ["web", latestBuild ? "es2017" : "es5"],
-    devtool: isProdBuild
-      ? "cheap-module-source-map"
+    target: `browserslist:${latestBuild ? "modern" : "legacy"}`,
+    // For tests/CI, source maps are skipped to gain build speed
+    // For production, generate source maps for accurate stack traces without source code
+    // For development, generate "cheap" versions that can map to original line numbers
+    devtool: isTestBuild
+      ? false
+      : isProdBuild
+      ? "nosources-source-map"
       : "eval-cheap-module-source-map",
     entry,
     node: false,
@@ -51,11 +59,14 @@ const createWebpackConfig = ({
           use: {
             loader: "babel-loader",
             options: {
-              ...bundle.babelOptions({ latestBuild }),
+              ...bundle.babelOptions({ latestBuild, isProdBuild, isTestBuild }),
               cacheDirectory: !isProdBuild,
               cacheCompression: false,
             },
           },
+          resolve: {
+            fullySpecified: false,
+          },
         },
         {
           test: /\.css$/,
@@ -68,11 +79,18 @@ const createWebpackConfig = ({
         new TerserPlugin({
           parallel: true,
           extractComments: true,
-          terserOptions: bundle.terserOptions(latestBuild),
+          terserOptions: bundle.terserOptions({ latestBuild, isTestBuild }),
         }),
       ],
       moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
       chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      splitChunks: {
+        // Disable splitting for web workers with ESM output
+        // Imports of external chunks are broken
+        chunks: latestBuild
+          ? (chunk) => !chunk.canBeInitial() && !/^.+-worker$/.test(chunk.name)
+          : undefined,
+      },
     },
     plugins: [
       !isStatsBuild && new WebpackBar({ fancy: !isProdBuild }),
@@ -121,6 +139,17 @@ const createWebpackConfig = ({
         ),
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
+      // See `src/resources/intl-polyfill-legacy.ts` for explanation
+      !latestBuild &&
+        new webpack.NormalModuleReplacementPlugin(
+          new RegExp(
+            path.resolve(paths.polymer_dir, "src/resources/intl-polyfill.ts")
+          ),
+          path.resolve(
+            paths.polymer_dir,
+            "src/resources/intl-polyfill-legacy.ts"
+          )
+        ),
       !isProdBuild && new LogStartCompilePlugin(),
     ].filter(Boolean),
     resolve: {
@@ -138,31 +167,58 @@ const createWebpackConfig = ({
         "lit/polyfill-support$": "lit/polyfill-support.js",
         "@lit-labs/virtualizer/layouts/grid":
           "@lit-labs/virtualizer/layouts/grid.js",
+        "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver":
+          "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver.js",
       },
     },
     output: {
-      filename: ({ chunk }) => {
-        if (!isProdBuild || isStatsBuild || dontHash.has(chunk.name)) {
-          return `${chunk.name}.js`;
-        }
-        return `${chunk.name}.${chunk.hash.substr(0, 8)}.js`;
-      },
+      module: latestBuild,
+      filename: ({ chunk }) =>
+        !isProdBuild || isStatsBuild || dontHash.has(chunk.name)
+          ? "[name].js"
+          : "[name]-[contenthash].js",
       chunkFilename:
-        isProdBuild && !isStatsBuild ? "[chunkhash:8].js" : "[id].chunk.js",
+        isProdBuild && !isStatsBuild ? "[id]-[contenthash].js" : "[name].js",
+      assetModuleFilename:
+        isProdBuild && !isStatsBuild ? "[id]-[contenthash][ext]" : "[id][ext]",
+      hashFunction: "xxhash64",
+      hashDigest: "base64url",
+      hashDigestLength: 11, // full length of 64 bit base64url
       path: outputPath,
       publicPath,
       // To silence warning in worker plugin
       globalObject: "self",
+      // Since production source maps don't include sources, we need to point to them elsewhere
+      // For dependencies, just provide the path (no source in browser)
+      // Otherwise, point to the raw code on GitHub for browser to load
+      devtoolModuleFilenameTemplate:
+        !isTestBuild && isProdBuild
+          ? (info) => {
+              const sourcePath = info.resourcePath.replace(/^\.\//, "");
+              if (
+                sourcePath.startsWith("node_modules") ||
+                sourcePath.startsWith("webpack")
+              ) {
+                return `no-source/${sourcePath}`;
+              }
+              return `${bundle.sourceMapURL()}/${sourcePath}`;
+            }
+          : undefined,
     },
     experiments: {
-      topLevelAwait: true,
+      outputModule: true,
     },
   };
 };
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+const createAppConfig = ({
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  isTestBuild,
+}) =>
   createWebpackConfig(
-    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
+    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild })
   );
 
 const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
@@ -173,8 +229,20 @@ const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
 const createCastConfig = ({ isProdBuild, latestBuild }) =>
   createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) =>
-  createWebpackConfig(bundle.config.hassio({ 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 }));
@@ -185,4 +253,5 @@ module.exports = {
   createCastConfig,
   createHassioConfig,
   createGalleryConfig,
+  createWebpackConfig,
 };

cast/rollup.config.js

@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
-const env = require("../build-scripts/env.js");
+import rollup from "../build-scripts/rollup.cjs";
+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>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
     <hc-layout subtitle="FAQ">
       <style>
         a {

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

@@ -22,25 +22,14 @@
     </script>
   </head>
   <body>
-    <%= renderTemplate('_js_base') %>
-
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
     <cast-media-player></cast-media-player>
-
     <script>
-      import("<%= latestMediaJS %>");
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
       window.latestJS = true;
     </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5MediaJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5MediaJS %>");
-        <% } %>
-      }
-    </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>
-  <%= renderTemplate('_style_base') %>
+  <% for (const entry of latestEntryJS) { %>
+    <script type="module" src="<%= entry %>"></script>
+  <% } %>
+  <%= renderTemplate("../../../src/html/_style_base.html.template") %>
   <style>
     body {
       background-color: white;

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

@@ -190,7 +190,7 @@ export class HcConnect extends LitElement {
 
   private _handleInputKeyDown(ev: KeyboardEvent) {
     // Handle pressing enter.
-    if (ev.keyCode === 13) {
+    if (ev.key === "Enter") {
       this._handleConnect();
     }
   }

cast/src/media/entrypoint.ts

@@ -1,3 +1,5 @@
+import { cast } from "chromecast-caf-receiver";
+
 const castContext = cast.framework.CastReceiverContext.getInstance();
 
 const playerManager = castContext.getPlayerManager();

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/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";

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

@@ -1,4 +1,4 @@
-import { html, TemplateResult } from "lit";
+import { html, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
@@ -18,9 +18,9 @@ class HcDemo extends HassElement {
 
   @state() private _lovelaceConfig?: LovelaceConfig;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this._lovelaceConfig) {
-      return html``;
+      return nothing;
     }
     return html`
       <hc-lovelace

cast/webpack.config.js

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

demo/rollup.config.js

@@ -1,5 +1,5 @@
-const rollup = require("../build-scripts/rollup.js");
-const env = require("../build-scripts/env.js");
+import rollup from "../build-scripts/rollup.cjs";
+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/src/custom-cards/cast-demo-row.ts

@@ -1,5 +1,5 @@
 import { mdiTelevision } from "@mdi/js";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { css, CSSResultGroup, html, LitElement, nothing } from "lit";
 import { customElement, state } from "lit/decorators";
 import { CastManager } from "../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../src/cast/receiver_messages";
@@ -20,12 +20,12 @@ class CastDemoRow extends LitElement implements LovelaceRow {
     // No config possible.
   }
 
-  protected render(): TemplateResult {
+  protected render() {
     if (
       !this._castManager ||
       this._castManager.castState === "NO_DEVICES_AVAILABLE"
     ) {
-      return html``;
+      return nothing;
     }
     return html`
       <ha-svg-icon .path=${mdiTelevision}></ha-svg-icon>

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

@@ -1,5 +1,5 @@
 import "@material/mwc-button";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { css, CSSResultGroup, html, LitElement, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { until } from "lit/directives/until";
 import "../../../src/components/ha-card";
@@ -30,9 +30,9 @@ export class HADemoCard extends LitElement implements LovelaceCard {
 
   public setConfig(_config: LovelaceCardConfig) {}
 
-  protected render(): TemplateResult {
+  protected render() {
     if (this._hidden) {
-      return html``;
+      return nothing;
     }
     return html`
       <ha-card>

demo/src/html/_social_meta.html.template

@@ -0,0 +1,26 @@
+<meta property="fb:app_id" content="338291289691179" />
+<meta property="og:title" content="Home Assistant Demo" />
+<meta property="og:site_name" content="Home Assistant" />
+<meta property="og:url" content="https://demo.home-assistant.io/" />
+<meta property="og:type" content="website" />
+<meta
+  property="og:description"
+  content="Open source home automation that puts local control and privacy first."
+/>
+<meta
+  property="og:image"
+  content="https://www.home-assistant.io/images/default-social.png"
+/>
+
+<meta name="twitter:card" content="summary_large_image" />
+<meta name="twitter:site" content="@home_assistant" />
+
+<meta name="twitter:title" content="Home Assistant" />
+<meta
+  name="twitter:description"
+  content="Open source home automation that puts local control and privacy first."
+/>
+<meta
+  name="twitter:image"
+  content="https://www.home-assistant.io/images/default-social.png"
+/>

demo/src/html/index.html.template

@@ -1,9 +1,8 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <meta charset="utf-8" />
-    <link rel="manifest" href="/manifest.json" crossorigin="use-credentials" />
-    <link rel="icon" href="/static/icons/favicon.ico" />
+    <title>Home Assistant Demo</title>
+    <%= renderTemplate("../../../src/html/_header.html.template") %>
     <link rel="mask-icon" href="/static/icons/mask-icon.svg" color="#03a9f4" />
     <link
       rel="apple-touch-icon"
@@ -35,33 +34,7 @@
       content="width=device-width, initial-scale=1, shrink-to-fit=no"
     />
     <meta name="theme-color" content="#03a9f4" />
-    <meta property="fb:app_id" content="338291289691179" />
-    <meta property="og:title" content="Home Assistant Demo" />
-    <meta property="og:site_name" content="Home Assistant" />
-    <meta property="og:url" content="https://demo.home-assistant.io/" />
-    <meta property="og:type" content="website" />
-    <meta
-      property="og:description"
-      content="Open source home automation that puts local control and privacy first."
-    />
-    <meta
-      property="og:image"
-      content="https://www.home-assistant.io/images/default-social.png"
-    />
-
-    <meta name="twitter:card" content="summary_large_image" />
-    <meta name="twitter:site" content="@home_assistant" />
-
-    <meta name="twitter:title" content="Home Assistant" />
-    <meta
-      name="twitter:description"
-      content="Open source home automation that puts local control and privacy first."
-    />
-    <meta
-      name="twitter:image"
-      content="https://www.home-assistant.io/images/default-social.png"
-    />
-    <title>Home Assistant Demo</title>
+    <%= renderTemplate("_social_meta.html.template") %>
     <style>
       html {
         background-color: var(--primary-background-color, #fafafa);
@@ -107,29 +80,19 @@
       </svg>
       <div id="ha-launch-screen-info-box" class="ha-launch-screen-spacer"></div>
     </div>
-
     <ha-demo></ha-demo>
-
-    <%= renderTemplate('_js_base') %>
-    <%= renderTemplate('_preload_roboto') %>
-
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <%= renderTemplate("../../../src/html/_preload_roboto.html.template") %>
     <script>
-      import("<%= latestDemoJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5DemoJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5DemoJS %>");
+      // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
+      if (!isS11_12) {
+        <% for (const entry of latestEntryJS) { %>
+          import("<%= entry %>");
         <% } %>
+        window.latestJS = true;
       }
     </script>
-
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
     <script>
       var _gaq = [["_setAccount", "UA-57927901-5"], ["_trackPageview"]];
       (function (d, t) {

demo/src/stubs/config_entries.ts

@@ -1,7 +1,7 @@
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockConfigEntries = (hass: MockHomeAssistant) => {
-  hass.mockWS("config_entries/get", () => [
+  hass.mockWS("config_entries/get_matching", () => [
     {
       entry_id: "co2signal",
       domain: "co2signal",

demo/src/stubs/history.ts

@@ -1,39 +1,19 @@
 import { HassEntity } from "home-assistant-js-websocket";
+import { HistoryStates } from "../../../src/data/history";
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
-interface HistoryQueryParams {
-  filter_entity_id: string;
-  end_time: string;
-}
-
-const parseQuery = <T>(queryString: string) => {
-  const query: any = {};
-  const items = queryString.split("&");
-  for (const item of items) {
-    const parts = item.split("=");
-    const key = decodeURIComponent(parts[0]);
-    const value = parts.length > 1 ? decodeURIComponent(parts[1]) : undefined;
-    query[key] = value;
-  }
-  return query as T;
-};
-
-const getTime = (minutesAgo) => {
-  const ts = new Date(Date.now() - minutesAgo * 60 * 1000);
-  return ts.toISOString();
-};
-
-const randomTimeAdjustment = (diff) => Math.random() * diff - diff / 2;
-
-const maxTime = 1440;
-
-const generateHistory = (state, deltas) => {
+const generateStateHistory = (
+  state: HassEntity,
+  deltas,
+  start_date: Date,
+  end_date: Date
+) => {
   const changes =
     typeof deltas[0] === "object"
       ? deltas
       : deltas.map((st) => ({ state: st }));
 
-  const timeDiff = 900 / changes.length;
+  const timeDiff = (end_date.getTime() - start_date.getTime()) / changes.length;
 
   return changes.map((change, index) => {
     let attributes;
@@ -47,17 +27,13 @@ const generateHistory = (state, deltas) => {
       attributes = { ...state.attributes, ...change.attributes };
     }
 
-    const time =
-      index === 0
-        ? getTime(maxTime)
-        : getTime(maxTime - index * timeDiff + randomTimeAdjustment(timeDiff));
+    const time = start_date.getTime() + timeDiff * index;
 
     return {
-      attributes,
-      entity_id: state.entity_id,
-      state: change.state || state.state,
-      last_changed: time,
-      last_updated: time,
+      a: attributes,
+      s: change.state || state.state,
+      lc: time / 1000,
+      lu: time / 1000,
     };
   });
 };
@@ -65,15 +41,29 @@ const generateHistory = (state, deltas) => {
 const incrementalUnits = ["clients", "queries", "ads"];
 
 export const mockHistory = (mockHass: MockHomeAssistant) => {
-  mockHass.mockAPI(
-    /history\/period\/.+/,
-    (hass, _method, path, _parameters) => {
-      const params = parseQuery<HistoryQueryParams>(path.split("?")[1]);
-      const entities = params.filter_entity_id.split(",");
+  mockHass.mockWS(
+    "history/stream",
+    (
+      {
+        entity_ids,
+        start_time,
+        end_time,
+      }: {
+        entity_ids: string[];
+        start_time: string;
+        end_time?: string;
+      },
+      hass,
+      onChange
+    ) => {
+      const states: HistoryStates = {};
 
-      const results: HassEntity[][] = [];
+      const start = new Date(start_time);
+      const end = end_time ? new Date(end_time) : new Date();
+
+      for (const entityId of entity_ids) {
+        states[entityId] = [];
 
-      for (const entityId of entities) {
         const state = hass.states[entityId];
 
         if (!state) {
@@ -81,7 +71,12 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
         }
 
         if (!state.attributes.unit_of_measurement) {
-          results.push(generateHistory(state, [state.state]));
+          states[entityId] = generateStateHistory(
+            state,
+            [state.state],
+            start,
+            end
+          );
           continue;
         }
 
@@ -120,17 +115,23 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
             numberState - diff + Math.floor(Math.random() * 2 * diff);
         }
 
-        results.push(
-          generateHistory(
-            {
-              entity_id: state.entity_id,
-              attributes: state.attributes,
-            },
-            Array.from({ length: statesToGenerate }, genFunc)
-          )
+        states[entityId] = generateStateHistory(
+          state,
+          Array.from({ length: statesToGenerate }, genFunc),
+          start,
+          end
         );
       }
-      return results;
+
+      setTimeout(() => {
+        onChange?.({
+          states,
+          start_time: start,
+          end_time: end,
+        });
+      }, 1);
+
+      return () => {};
     }
   );
 };

demo/webpack.config.js

@@ -1,12 +1,11 @@
-const { createDemoConfig } = require("../build-scripts/webpack.js");
-const { isProdBuild, isStatsBuild } = require("../build-scripts/env.js");
+import webpack from "../build-scripts/webpack.cjs";
+import env from "../build-scripts/env.cjs";
 
 // File just used for stats builds
-
 const latestBuild = true;
 
-module.exports = createDemoConfig({
-  isProdBuild: isProdBuild(),
-  isStatsBuild: isStatsBuild(),
+export default webpack.createDemoConfig({
+  isProdBuild: env.isProdBuild(),
+  isStatsBuild: env.isStatsBuild(),
   latestBuild,
 });

gallery/rollup.config.js

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

gallery/sidebar.js

@@ -1,4 +1,4 @@
-module.exports = [
+export default [
   {
     // This section has no header and so all page links are shown directly in the sidebar
     category: "concepts",
@@ -45,6 +45,10 @@ module.exports = [
     header: "Users",
     pages: ["user-types", "configuration-menu"],
   },
+  {
+    category: "date-time",
+    header: "Date and Time",
+  },
   {
     category: "design.home-assistant.io",
     header: "About",

gallery/src/components/page-description.ts

@@ -1,4 +1,4 @@
-import { html, css } from "lit";
+import { css, html, nothing } from "lit";
 import { customElement, property } from "lit/decorators";
 import { until } from "lit/directives/until";
 import { HaMarkdown } from "../../../src/components/ha-markdown";
@@ -10,7 +10,7 @@ class PageDescription extends HaMarkdown {
 
   render() {
     if (!PAGES[this.page].description) {
-      return html``;
+      return nothing;
     }
 
     return html`

gallery/src/data/date-options.ts

@@ -0,0 +1,24 @@
+import type { ControlSelectOption } from "../../../src/components/ha-control-select";
+
+export const timeOptions: ControlSelectOption[] = [
+  {
+    value: "now",
+    label: "Now",
+  },
+  {
+    value: "00:15:30",
+    label: "12:15:30 AM",
+  },
+  {
+    value: "06:15:30",
+    label: "06:15:30 AM",
+  },
+  {
+    value: "12:15:30",
+    label: "12:15:30 PM",
+  },
+  {
+    value: "18:15:30",
+    label: "06:15:30 PM",
+  },
+];

gallery/src/entrypoint.js

@@ -1,5 +1,3 @@
-import "@polymer/polymer/lib/elements/dom-if";
-import "@polymer/polymer/lib/elements/dom-repeat";
 import "../../src/resources/ha-style";
 import "../../src/resources/roboto";
 import "./ha-gallery";

gallery/src/html/index.html.template

@@ -8,8 +8,9 @@
     />
     <meta name="theme-color" content="#2157BC" />
     <title>Home Assistant Design</title>
-
-    <script type="module" src="<%= latestGalleryJS %>"></script>
+    <% for (const entry of latestEntryJS) { %>
+      <script type="module" src="<%= entry %>"></script>
+    <% } %>
     <style>
       body {
         font-family: Roboto, Noto, sans-serif;

gallery/src/pages/automation/describe-action.ts

@@ -1,5 +1,5 @@
 import { dump } from "js-yaml";
-import { html, css, LitElement, TemplateResult } from "lit";
+import { css, html, LitElement, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/ha-yaml-editor";
@@ -127,9 +127,9 @@ export class DemoAutomationDescribeAction extends LitElement {
 
   @state() _action = initialAction;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this.hass) {
-      return html``;
+      return nothing;
     }
     return html`
       <ha-card header="Actions">

gallery/src/pages/automation/describe-condition.ts

@@ -1,5 +1,5 @@
 import { dump } from "js-yaml";
-import { css, html, LitElement, TemplateResult } from "lit";
+import { css, html, LitElement, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/ha-yaml-editor";
@@ -53,9 +53,9 @@ export class DemoAutomationDescribeCondition extends LitElement {
 
   @state() _condition = initialCondition;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this.hass) {
-      return html``;
+      return nothing;
     }
 
     return html`
@@ -63,7 +63,7 @@ export class DemoAutomationDescribeCondition extends LitElement {
         <div class="condition">
           <span>
             ${this._condition
-              ? describeCondition(this._condition, this.hass)
+              ? describeCondition(this._condition, this.hass, [])
               : "<invalid YAML>"}
           </span>
           <ha-yaml-editor
@@ -76,7 +76,7 @@ export class DemoAutomationDescribeCondition extends LitElement {
         ${conditions.map(
           (conf) => html`
             <div class="condition">
-              <span>${describeCondition(conf as any, this.hass)}</span>
+              <span>${describeCondition(conf as any, this.hass, [])}</span>
               <pre>${dump(conf)}</pre>
             </div>
           `

gallery/src/pages/automation/describe-trigger.ts

@@ -1,5 +1,5 @@
 import { dump } from "js-yaml";
-import { css, html, LitElement, TemplateResult } from "lit";
+import { css, html, LitElement, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/ha-yaml-editor";
@@ -41,6 +41,7 @@ const triggers = [
   { platform: "sun", event: "sunset" },
   { platform: "time_pattern" },
   { platform: "webhook" },
+  { platform: "persistent_notification" },
   {
     platform: "zone",
     entity_id: "person.person",
@@ -50,6 +51,11 @@ const triggers = [
   { platform: "tag" },
   { platform: "time", at: "15:32" },
   { platform: "template" },
+  { platform: "conversation", command: "Turn on the lights" },
+  {
+    platform: "conversation",
+    command: ["Turn on the lights", "Turn the lights on"],
+  },
   { platform: "event", event_type: "homeassistant_started" },
 ];
 
@@ -64,9 +70,9 @@ export class DemoAutomationDescribeTrigger extends LitElement {
 
   @state() _trigger = initialTrigger;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this.hass) {
-      return html``;
+      return nothing;
     }
 
     return html`
@@ -74,7 +80,7 @@ export class DemoAutomationDescribeTrigger extends LitElement {
         <div class="trigger">
           <span>
             ${this._trigger
-              ? describeTrigger(this._trigger, this.hass)
+              ? describeTrigger(this._trigger, this.hass, [])
               : "<invalid YAML>"}
           </span>
           <ha-yaml-editor
@@ -86,7 +92,7 @@ export class DemoAutomationDescribeTrigger extends LitElement {
         ${triggers.map(
           (conf) => html`
             <div class="trigger">
-              <span>${describeTrigger(conf as any, this.hass)}</span>
+              <span>${describeTrigger(conf as any, this.hass, [])}</span>
               <pre>${dump(conf)}</pre>
             </div>
           `

gallery/src/pages/automation/editor-trigger.ts

@@ -19,11 +19,13 @@ import { HaTemplateTrigger } from "../../../../src/panels/config/automation/trig
 import { HaTimeTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-time";
 import { HaTimePatternTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-time_pattern";
 import { HaWebhookTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-webhook";
+import { HaPersistentNotificationTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-persistent_notification";
 import { HaZoneTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-zone";
 import { HaDeviceTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-device";
 import { HaStateTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-state";
 import { HaMQTTTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-mqtt";
 import "../../../../src/panels/config/automation/trigger/ha-automation-trigger";
+import { HaConversationTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-conversation";
 
 const SCHEMAS: { name: string; triggers: Trigger[] }[] = [
   {
@@ -72,6 +74,16 @@ const SCHEMAS: { name: string; triggers: Trigger[] }[] = [
     triggers: [{ platform: "webhook", ...HaWebhookTrigger.defaultConfig }],
   },
 
+  {
+    name: "Persistent Notification",
+    triggers: [
+      {
+        platform: "persistent_notification",
+        ...HaPersistentNotificationTrigger.defaultConfig,
+      },
+    ],
+  },
+
   {
     name: "Zone",
     triggers: [{ platform: "zone", ...HaZoneTrigger.defaultConfig }],
@@ -101,6 +113,16 @@ const SCHEMAS: { name: string; triggers: Trigger[] }[] = [
     name: "Device Trigger",
     triggers: [{ platform: "device", ...HaDeviceTrigger.defaultConfig }],
   },
+  {
+    name: "Sentence",
+    triggers: [
+      { platform: "conversation", ...HaConversationTrigger.defaultConfig },
+      {
+        platform: "conversation",
+        command: ["Turn on the lights", "Turn the lights on"],
+      },
+    ],
+  },
 ];
 
 @customElement("demo-automation-editor-trigger")

gallery/src/pages/automation/trace-timeline.ts

@@ -1,5 +1,6 @@
 /* eslint-disable lit/no-template-arrow */
-import { html, css, LitElement, TemplateResult } from "lit";
+
+import { css, html, LitElement, nothing } from "lit";
 import { customElement, property } from "lit/decorators";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/trace/hat-script-graph";
@@ -29,9 +30,9 @@ const traces: DemoTrace[] = [
 export class DemoAutomationTraceTimeline extends LitElement {
   @property({ attribute: false }) hass?: HomeAssistant;
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this.hass) {
-      return html``;
+      return nothing;
     }
     return html`
       ${traces.map(

gallery/src/pages/automation/trace.ts

@@ -1,14 +1,15 @@
 /* eslint-disable lit/no-template-arrow */
-import { html, css, LitElement, TemplateResult } from "lit";
+
+import { css, html, LitElement, nothing } from "lit";
+import { customElement, property, state } from "lit/decorators";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/trace/hat-script-graph";
 import "../../../../src/components/trace/hat-trace-timeline";
-import { customElement, property, state } from "lit/decorators";
 import { provideHass } from "../../../../src/fake_data/provide_hass";
 import { HomeAssistant } from "../../../../src/types";
-import { DemoTrace } from "../../data/traces/types";
 import { basicTrace } from "../../data/traces/basic_trace";
 import { motionLightTrace } from "../../data/traces/motion-light-trace";
+import { DemoTrace } from "../../data/traces/types";
 
 const traces: DemoTrace[] = [basicTrace, motionLightTrace];
 
@@ -18,9 +19,9 @@ export class DemoAutomationTrace extends LitElement {
 
   @state() private _selected = {};
 
-  protected render(): TemplateResult {
+  protected render() {
     if (!this.hass) {
-      return html``;
+      return nothing;
     }
     return html`
       ${traces.map(

gallery/src/pages/components/ha-control-circular-slider.markdown

@@ -0,0 +1,3 @@
+---
+title: Control Circular Slider
+---

gallery/src/pages/components/ha-control-circular-slider.ts

@@ -0,0 +1,178 @@
+import { css, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-control-circular-slider";
+import "../../../../src/components/ha-slider";
+
+@customElement("demo-components-ha-control-circular-slider")
+export class DemoHaCircularSlider extends LitElement {
+  @state()
+  private current = 22;
+
+  @state()
+  private low = 19;
+
+  @state()
+  private high = 25;
+
+  @state()
+  private changingLow?: number;
+
+  @state()
+  private changingHigh?: number;
+
+  private _lowChanged(ev) {
+    this.low = ev.detail.value;
+  }
+
+  private _lowChanging(ev) {
+    this.changingLow = ev.detail.value;
+  }
+
+  private _highChanged(ev) {
+    this.high = ev.detail.value;
+  }
+
+  private _highChanging(ev) {
+    this.changingHigh = ev.detail.value;
+  }
+
+  private _currentChanged(ev) {
+    this.current = ev.currentTarget.value;
+  }
+
+  protected render(): TemplateResult {
+    return html`
+      <ha-card>
+        <div class="card-content">
+          <p class="title"><b>Config</b></p>
+          <div class="field">
+            <p>Current</p>
+            <ha-slider
+              min="10"
+              max="30"
+              .value=${this.current}
+              @change=${this._currentChanged}
+              pin
+            ></ha-slider>
+            <p>${this.current} °C</p>
+          </div>
+        </div>
+      </ha-card>
+      <ha-card>
+        <div class="card-content">
+          <p class="title"><b>Single</b></p>
+          <ha-control-circular-slider
+            @value-changed=${this._lowChanged}
+            @value-changing=${this._lowChanging}
+            .value=${this.low}
+            .current=${this.current}
+            step="1"
+            min="10"
+            max="30"
+          ></ha-control-circular-slider>
+          <div>
+            Low: ${this.low} °C
+            <br />
+            Changing:
+            ${this.changingLow != null ? `${this.changingLow} °C` : "-"}
+          </div>
+        </div>
+      </ha-card>
+      <ha-card>
+        <div class="card-content">
+          <p class="title"><b>Inverted</b></p>
+          <ha-control-circular-slider
+            inverted
+            @value-changed=${this._highChanged}
+            @value-changing=${this._highChanging}
+            .value=${this.high}
+            .current=${this.current}
+            step="1"
+            min="10"
+            max="30"
+          ></ha-control-circular-slider>
+          <div>
+            High: ${this.high} °C
+            <br />
+            Changing:
+            ${this.changingHigh != null ? `${this.changingHigh} °C` : "-"}
+          </div>
+        </div>
+      </ha-card>
+      <ha-card>
+        <div class="card-content">
+          <p class="title"><b>Dual</b></p>
+          <ha-control-circular-slider
+            dual
+            @low-changed=${this._lowChanged}
+            @low-changing=${this._lowChanging}
+            @high-changed=${this._highChanged}
+            @high-changing=${this._highChanging}
+            .low=${this.low}
+            .high=${this.high}
+            .current=${this.current}
+            step="1"
+            min="10"
+            max="30"
+          ></ha-control-circular-slider>
+          <div>
+            Low value: ${this.low} °C
+            <br />
+            Low changing:
+            ${this.changingLow != null ? `${this.changingLow} °C` : "-"}
+            <br />
+            High value: ${this.high} °C
+            <br />
+            High changing:
+            ${this.changingHigh != null ? `${this.changingHigh} °C` : "-"}
+          </div>
+        </div>
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      pre {
+        margin-top: 0;
+        margin-bottom: 8px;
+      }
+      p {
+        margin: 0;
+      }
+      p.title {
+        margin-bottom: 12px;
+      }
+      ha-control-circular-slider {
+        --control-circular-slider-color: #ff9800;
+        --control-circular-slider-background: #ff9800;
+        --control-circular-slider-background-opacity: 0.3;
+      }
+      ha-control-circular-slider[inverted] {
+        --control-circular-slider-color: #2196f3;
+        --control-circular-slider-background: #2196f3;
+      }
+      ha-control-circular-slider[dual] {
+        --control-circular-slider-high-color: #2196f3;
+        --control-circular-slider-low-color: #ff9800;
+        --control-circular-slider-background: var(--disabled-color);
+      }
+      .field {
+        display: flex;
+        flex-direction: row;
+        align-items: center;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-components-ha-control-circular-slider": DemoHaCircularSlider;
+  }
+}

gallery/src/pages/components/ha-control-select.markdown

@@ -0,0 +1,3 @@
+---
+title: Control Select
+---

gallery/src/pages/components/ha-control-select.ts

@@ -0,0 +1,212 @@
+import { mdiFanOff, mdiFanSpeed1, mdiFanSpeed2, mdiFanSpeed3 } from "@mdi/js";
+import { css, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
+import { ifDefined } from "lit/directives/if-defined";
+import { repeat } from "lit/directives/repeat";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-control-select";
+import type { ControlSelectOption } from "../../../../src/components/ha-control-select";
+
+const fullOptions: ControlSelectOption[] = [
+  {
+    value: "off",
+    label: "Off",
+    path: mdiFanOff,
+  },
+  {
+    value: "low",
+    label: "Low",
+    path: mdiFanSpeed1,
+  },
+  {
+    value: "medium",
+    label: "Medium",
+    path: mdiFanSpeed2,
+  },
+  {
+    value: "high",
+    label: "High",
+    path: mdiFanSpeed3,
+  },
+];
+
+const iconOptions: ControlSelectOption[] = [
+  {
+    value: "off",
+    path: mdiFanOff,
+  },
+  {
+    value: "low",
+    path: mdiFanSpeed1,
+  },
+  {
+    value: "medium",
+    path: mdiFanSpeed2,
+  },
+  {
+    value: "high",
+    path: mdiFanSpeed3,
+  },
+];
+
+const labelOptions: ControlSelectOption[] = [
+  {
+    value: "off",
+    label: "Off",
+  },
+  {
+    value: "low",
+    label: "Low",
+  },
+  {
+    value: "medium",
+    label: "Medium",
+  },
+  {
+    value: "high",
+    label: "High",
+  },
+];
+
+const selects: {
+  id: string;
+  label: string;
+  class?: string;
+  options: ControlSelectOption[];
+  disabled?: boolean;
+}[] = [
+  {
+    id: "label",
+    label: "Select with labels",
+    options: labelOptions,
+  },
+  {
+    id: "icon",
+    label: "Select with icons",
+    options: iconOptions,
+  },
+  {
+    id: "icon",
+    label: "Disabled select",
+    options: iconOptions,
+    disabled: true,
+  },
+  {
+    id: "custom",
+    label: "Select and custom style",
+    class: "custom",
+    options: fullOptions,
+  },
+];
+
+@customElement("demo-components-ha-control-select")
+export class DemoHaControlSelect extends LitElement {
+  @state() private value?: string = "off";
+
+  handleValueChanged(e: CustomEvent) {
+    this.value = e.detail.value as string;
+  }
+
+  protected render(): TemplateResult {
+    return html`
+      <ha-card>
+        <div class="card-content">
+          <p><b>Slider values</b></p>
+          <table>
+            <tbody>
+              <tr>
+                <td>value</td>
+                <td>${this.value ?? "-"}</td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </ha-card>
+      ${repeat(selects, (select) => {
+        const { id, label, options, ...config } = select;
+        return html`
+          <ha-card>
+            <div class="card-content">
+              <label id=${id}>${label}</label>
+              <pre>Config: ${JSON.stringify(config)}</pre>
+              <ha-control-select
+                .value=${this.value}
+                .options=${options}
+                class=${ifDefined(config.class)}
+                @value-changed=${this.handleValueChanged}
+                aria-labelledby=${id}
+                disabled=${ifDefined(config.disabled)}
+              >
+              </ha-control-select>
+            </div>
+          </ha-card>
+        `;
+      })}
+      <ha-card>
+        <div class="card-content">
+          <p class="title"><b>Vertical</b></p>
+          <div class="vertical-selects">
+            ${repeat(selects, (select) => {
+              const { id, label, options, ...config } = select;
+              return html`
+                <ha-control-select
+                  .value=${this.value}
+                  .options=${options}
+                  vertical
+                  class=${ifDefined(config.class)}
+                  @value-changed=${this.handleValueChanged}
+                  aria-labelledby=${id}
+                  disabled=${ifDefined(config.disabled)}
+                >
+                </ha-control-select>
+              `;
+            })}
+          </div>
+        </div>
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      pre {
+        margin-top: 0;
+        margin-bottom: 8px;
+      }
+      p {
+        margin: 0;
+      }
+      label {
+        font-weight: 600;
+      }
+      .custom {
+        --mdc-icon-size: 24px;
+        --control-select-color: var(--state-fan-active-color);
+        --control-select-thickness: 100px;
+        --control-select-border-radius: 24px;
+      }
+      .vertical-selects {
+        height: 300px;
+        display: flex;
+        flex-direction: row;
+        justify-content: space-between;
+      }
+      p.title {
+        margin-bottom: 12px;
+      }
+      .vertical-selects > *:not(:last-child) {
+        margin-right: 4px;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-components-ha-control-select": DemoHaControlSelect;
+  }
+}

gallery/src/pages/components/ha-form.ts

@@ -336,7 +336,7 @@ const SCHEMAS: {
           ["and", "another_one"],
           ["option", "1000"],
         ],
-        name: "select many otions",
+        name: "select many options",
         default: "default",
       },
     ],
@@ -364,7 +364,7 @@ const SCHEMAS: {
           and: "another_one",
           option: "1000",
         },
-        name: "multi many otions",
+        name: "multi many options",
         default: ["default"],
       },
     ],

gallery/src/pages/components/ha-hs-color-picker.markdown

@@ -0,0 +1,3 @@
+---
+title: HS Color Picker
+---

gallery/src/pages/components/ha-hs-color-picker.ts

@@ -0,0 +1,120 @@
+import "../../../../src/components/ha-hs-color-picker";
+
+import { css, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
+
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-slider";
+import { hsv2rgb } from "../../../../src/common/color/convert-color";
+
+@customElement("demo-components-ha-hs-color-picker")
+export class DemoHaHsColorPicker extends LitElement {
+  @state()
+  brightness = 255;
+
+  @state()
+  value: [number, number] = [0, 0];
+
+  @state()
+  liveValue?: [number, number];
+
+  private _brightnessChanged(ev) {
+    this.brightness = Number(ev.target.value);
+  }
+
+  private _hsColorCursor(ev) {
+    this.liveValue = ev.detail.value;
+  }
+
+  private _hsColorChanged(ev) {
+    this.value = ev.detail.value;
+  }
+
+  private _hueChanged(ev) {
+    this.value = [ev.target.value, this.value[1]];
+  }
+
+  private _saturationChanged(ev) {
+    this.value = [this.value[0], ev.target.value];
+  }
+
+  protected render(): TemplateResult {
+    const h = (this.liveValue ?? this.value)[0];
+    const s = (this.liveValue ?? this.value)[1];
+
+    const rgb = hsv2rgb([h, s, this.brightness]);
+
+    return html`
+      <ha-card>
+        <div class="card-content">
+          <p class="value">${h}° - ${Math.round(s * 100)}%</p>
+          <p class="value">${rgb.map((v) => Math.round(v)).join(", ")}</p>
+          <ha-hs-color-picker
+            colorBrightness=${this.brightness}
+            .value=${this.value}
+            @value-changed=${this._hsColorChanged}
+            @cursor-moved=${this._hsColorCursor}
+          ></ha-hs-color-picker>
+          <p>Hue : ${this.value[0]}</p>
+          <ha-slider
+            step="1"
+            pin
+            min="0"
+            max="360"
+            .value=${this.value[0]}
+            @change=${this._hueChanged}
+          >
+          </ha-slider>
+          <p>Saturation : ${this.value[1]}</p>
+          <ha-slider
+            step="0.01"
+            pin
+            min="0"
+            max="1"
+            .value=${this.value[1]}
+            @change=${this._saturationChanged}
+          >
+          </ha-slider>
+          <p>Color Brighness : ${this.brightness}</p>
+          <ha-slider
+            step="1"
+            pin
+            min="0"
+            max="255"
+            .value=${this.brightness}
+            @change=${this._brightnessChanged}
+          >
+          </ha-slider>
+        </div>
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      .card-content {
+        display: flex;
+        align-items: center;
+        flex-direction: column;
+      }
+      ha-hs-color-picker {
+        width: 400px;
+      }
+      .value {
+        font-size: 22px;
+        font-weight: bold;
+        margin: 0 0 12px 0;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-components-ha-hs-color-picker": DemoHaHsColorPicker;
+  }
+}

gallery/src/pages/components/ha-temp-color-picker.markdown

@@ -0,0 +1,3 @@
+---
+title: Temp Color Picker
+---

gallery/src/pages/components/ha-temp-color-picker.ts

@@ -0,0 +1,117 @@
+import "../../../../src/components/ha-temp-color-picker";
+
+import { css, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
+
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-slider";
+
+@customElement("demo-components-ha-temp-color-picker")
+export class DemoHaTempColorPicker extends LitElement {
+  @state()
+  min = 3000;
+
+  @state()
+  max = 7000;
+
+  @state()
+  value = 4000;
+
+  @state()
+  liveValue?: number;
+
+  private _minChanged(ev) {
+    this.min = Number(ev.target.value);
+  }
+
+  private _maxChanged(ev) {
+    this.max = Number(ev.target.value);
+  }
+
+  private _valueChanged(ev) {
+    this.value = Number(ev.target.value);
+  }
+
+  private _tempColorCursor(ev) {
+    this.liveValue = ev.detail.value;
+  }
+
+  private _tempColorChanged(ev) {
+    this.value = ev.detail.value;
+  }
+
+  protected render(): TemplateResult {
+    return html`
+      <ha-card>
+        <div class="card-content">
+          <p class="value">${this.liveValue ?? this.value} K</p>
+          <ha-temp-color-picker
+            .min=${this.min}
+            .max=${this.max}
+            .value=${this.value}
+            @value-changed=${this._tempColorChanged}
+            @cursor-moved=${this._tempColorCursor}
+          ></ha-temp-color-picker>
+          <p>Min temp : ${this.min} K</p>
+          <ha-slider
+            step="1"
+            pin
+            min="2000"
+            max="10000"
+            .value=${this.min}
+            @change=${this._minChanged}
+          >
+          </ha-slider>
+          <p>Max temp : ${this.max} K</p>
+          <ha-slider
+            step="1"
+            pin
+            min="2000"
+            max="10000"
+            .value=${this.max}
+            @change=${this._maxChanged}
+          >
+          </ha-slider>
+          <p>Value : ${this.value} K</p>
+          <ha-slider
+            step="1"
+            pin
+            min=${this.min}
+            max=${this.max}
+            .value=${this.value}
+            @change=${this._valueChanged}
+          >
+          </ha-slider>
+        </div>
+      </ha-card>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-card {
+        max-width: 600px;
+        margin: 24px auto;
+      }
+      .card-content {
+        display: flex;
+        align-items: center;
+        flex-direction: column;
+      }
+      ha-temp-color-picker {
+        width: 400px;
+      }
+      .value {
+        font-size: 22px;
+        font-weight: bold;
+        margin: 0 0 12px 0;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-components-ha-temp-color-picker": DemoHaTempColorPicker;
+  }
+}

gallery/src/pages/date-time/date-time-numeric.markdown

@@ -0,0 +1,7 @@
+---
+title: Date-Time Format (Numeric)
+---
+
+This pages lists all supported languages with their available date-time formats.
+
+Formatting function: `const formatDateTimeNumeric: (dateObj: Date, locale: FrontendLocaleData) => string`

gallery/src/pages/date-time/date-time-numeric.ts

@@ -0,0 +1,136 @@
+import { html, css, LitElement } from "lit";
+import { customElement, state } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-control-select";
+import { translationMetadata } from "../../../../src/resources/translations-metadata";
+import { formatDateTimeNumeric } from "../../../../src/common/datetime/format_date_time";
+import { timeOptions } from "../../data/date-options";
+import { demoConfig } from "../../../../src/fake_data/demo_config";
+import {
+  FrontendLocaleData,
+  NumberFormat,
+  TimeFormat,
+  DateFormat,
+  FirstWeekday,
+  TimeZone,
+} from "../../../../src/data/translation";
+
+@customElement("demo-date-time-date-time-numeric")
+export class DemoDateTimeDateTimeNumeric extends LitElement {
+  @state() private selection?: string = "now";
+
+  @state() private date: Date = new Date();
+
+  handleValueChanged(e: CustomEvent) {
+    this.selection = e.detail.value as string;
+    this.date = new Date();
+    if (this.selection !== "now") {
+      const [hours, minutes, seconds] = this.selection.split(":").map(Number);
+      this.date.setHours(hours);
+      this.date.setMinutes(minutes);
+      this.date.setSeconds(seconds);
+    }
+  }
+
+  protected render() {
+    const defaultLocale: FrontendLocaleData = {
+      language: "en",
+      number_format: NumberFormat.language,
+      time_format: TimeFormat.language,
+      date_format: DateFormat.language,
+      first_weekday: FirstWeekday.language,
+      time_zone: TimeZone.local,
+    };
+    return html`
+      <ha-control-select
+        .value=${this.selection}
+        .options=${timeOptions}
+        @value-changed=${this.handleValueChanged}
+      >
+      </ha-control-select>
+      <mwc-list>
+        <div class="container header">
+          <div>Language</div>
+          <div class="center">Default (lang)</div>
+          <div class="center">12 Hours</div>
+          <div class="center">24 Hours</div>
+        </div>
+        ${Object.entries(translationMetadata.translations)
+          .filter(([key, _]) => key !== "test")
+          .map(
+            ([key, value]) => html`
+              <div class="container">
+                <div>${value.nativeName}</div>
+                <div class="center">
+                  ${formatDateTimeNumeric(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.language,
+                    },
+                    demoConfig
+                  )}
+                </div>
+                <div class="center">
+                  ${formatDateTimeNumeric(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.am_pm,
+                    },
+                    demoConfig
+                  )}
+                </div>
+                <div class="center">
+                  ${formatDateTimeNumeric(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.twenty_four,
+                    },
+                    demoConfig
+                  )}
+                </div>
+              </div>
+            `
+          )}
+      </mwc-list>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-control-select {
+        max-width: 800px;
+        margin: 12px auto;
+      }
+      .header {
+        font-weight: bold;
+      }
+      .center {
+        text-align: center;
+      }
+      .container {
+        max-width: 900px;
+        margin: 12px auto;
+        display: flex;
+        align-items: center;
+        justify-content: space-evenly;
+      }
+
+      .container > div {
+        flex-grow: 1;
+        width: 20%;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-date-time-date-time-numeric": DemoDateTimeDateTimeNumeric;
+  }
+}

gallery/src/pages/date-time/date-time-seconds.markdown

@@ -0,0 +1,7 @@
+---
+title: Date-Time Format (Seconds)
+---
+
+This pages lists all supported languages with their available date-time formats.
+
+Formatting function: `const formatDateTimeWithSeconds: (dateObj: Date, locale: FrontendLocaleData) => string`

gallery/src/pages/date-time/date-time-seconds.ts

@@ -0,0 +1,136 @@
+import { html, css, LitElement } from "lit";
+import { customElement, state } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/ha-control-select";
+import { translationMetadata } from "../../../../src/resources/translations-metadata";
+import { formatDateTimeWithSeconds } from "../../../../src/common/datetime/format_date_time";
+import { timeOptions } from "../../data/date-options";
+import { demoConfig } from "../../../../src/fake_data/demo_config";
+import {
+  FrontendLocaleData,
+  NumberFormat,
+  TimeFormat,
+  DateFormat,
+  FirstWeekday,
+  TimeZone,
+} from "../../../../src/data/translation";
+
+@customElement("demo-date-time-date-time-seconds")
+export class DemoDateTimeDateTimeSeconds extends LitElement {
+  @state() private selection?: string = "now";
+
+  @state() private date: Date = new Date();
+
+  handleValueChanged(e: CustomEvent) {
+    this.selection = e.detail.value as string;
+    this.date = new Date();
+    if (this.selection !== "now") {
+      const [hours, minutes, seconds] = this.selection.split(":").map(Number);
+      this.date.setHours(hours);
+      this.date.setMinutes(minutes);
+      this.date.setSeconds(seconds);
+    }
+  }
+
+  protected render() {
+    const defaultLocale: FrontendLocaleData = {
+      language: "en",
+      number_format: NumberFormat.language,
+      time_format: TimeFormat.language,
+      date_format: DateFormat.language,
+      first_weekday: FirstWeekday.language,
+      time_zone: TimeZone.local,
+    };
+    return html`
+      <ha-control-select
+        .value=${this.selection}
+        .options=${timeOptions}
+        @value-changed=${this.handleValueChanged}
+      >
+      </ha-control-select>
+      <mwc-list>
+        <div class="container header">
+          <div>Language</div>
+          <div class="center">Default (lang)</div>
+          <div class="center">12 Hours</div>
+          <div class="center">24 Hours</div>
+        </div>
+        ${Object.entries(translationMetadata.translations)
+          .filter(([key, _]) => key !== "test")
+          .map(
+            ([key, value]) => html`
+              <div class="container">
+                <div>${value.nativeName}</div>
+                <div class="center">
+                  ${formatDateTimeWithSeconds(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.language,
+                    },
+                    demoConfig
+                  )}
+                </div>
+                <div class="center">
+                  ${formatDateTimeWithSeconds(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.am_pm,
+                    },
+                    demoConfig
+                  )}
+                </div>
+                <div class="center">
+                  ${formatDateTimeWithSeconds(
+                    this.date,
+                    {
+                      ...defaultLocale,
+                      language: key,
+                      time_format: TimeFormat.twenty_four,
+                    },
+                    demoConfig
+                  )}
+                </div>
+              </div>
+            `
+          )}
+      </mwc-list>
+    `;
+  }
+
+  static get styles() {
+    return css`
+      ha-control-select {
+        max-width: 800px;
+        margin: 12px auto;
+      }
+      .header {
+        font-weight: bold;
+      }
+      .center {
+        text-align: center;
+      }
+      .container {
+        max-width: 900px;
+        margin: 12px auto;
+        display: flex;
+        align-items: center;
+        justify-content: space-evenly;
+      }
+
+      .container > div {
+        flex-grow: 1;
+        width: 20%;
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-date-time-date-time-seconds": DemoDateTimeDateTimeSeconds;
+  }
+}