annotate mrjunejune/src/sw.js @ 256:30c2196d03d4

[site] Integrate Zenbu themes and components Co-authored-by: Copilot <[email protected]>
author MrJuneJune <me@mrjunejune.com>
date Tue, 04 Aug 2026 16:49:01 -0700
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1 // Root-scoped Service Worker for MrJuneJune PWA
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2 const CACHE_VERSION = 'v5-zenbu-themes';
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3 const CACHE_NAME = `mrjunejune-${CACHE_VERSION}`;
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4
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5 // Files to cache immediately on install
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6 const STATIC_CACHE = [
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7 '/',
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8 '/index.js',
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9 '/base.css',
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10 '/public/design-system/styles/tokens.css',
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11 '/public/design-system/styles/themes.css',
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12 '/public/design-system/styles/components.css',
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13 '/public/design-system/styles/shadcn.css',
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14 '/public/design-system/components/index.js',
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15 '/public/design-system/components/alert.js',
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16 '/public/design-system/components/button.js',
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17 '/public/design-system/components/card.js',
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18 '/public/design-system/components/collections.js',
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19 '/public/design-system/components/disclosure.js',
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20 '/public/design-system/components/field.js',
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21 '/public/design-system/components/forms.js',
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22 '/public/design-system/components/icon.js',
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23 '/public/design-system/components/notifications.js',
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24 '/public/design-system/components/overlays.js',
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25 '/public/design-system/components/primitives.js',
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26 '/public/design-system/components/stack.js',
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27 '/public/design-system/components/story.js',
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28 '/public/epi_all_colors.svg',
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29 '/public/fonts/Roboto-Regular.ttf',
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30 '/public/fonts/Roboto-Thin.ttf',
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31 '/public/fonts/more-sugar.regular.otf',
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32 '/public/fonts/more-sugar.thin.otf',
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33 ];
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34
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35 // Install event - cache static assets
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36 self.addEventListener('install', (event) => {
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37 console.log('[SW] Installing service worker...');
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38
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39 event.waitUntil(
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40 caches.open(CACHE_NAME).then((cache) => {
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41 console.log('[SW] Caching static assets');
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42 return cache.addAll(STATIC_CACHE);
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43 }).then(() => {
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44 console.log('[SW] Skip waiting');
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45 return self.skipWaiting();
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46 })
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47 );
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48 });
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49
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50 // Activate event - clean up old caches
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51 self.addEventListener('activate', (event) => {
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52 console.log('[SW] Activating service worker...');
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53
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54 event.waitUntil(
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55 caches.keys().then((cacheNames) => {
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56 return Promise.all(
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57 cacheNames.map((cacheName) => {
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58 if (cacheName !== CACHE_NAME) {
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59 console.log('[SW] Deleting old cache:', cacheName);
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60 return caches.delete(cacheName);
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61 }
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62 })
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63 );
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64 }).then(() => {
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65 console.log('[SW] Claiming clients');
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66 return self.clients.claim();
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67 })
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68 );
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69 });
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70
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71 // Fetch event - serve from cache, fallback to network
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72 self.addEventListener('fetch', (event) => {
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73 const { request } = event;
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74 const url = new URL(request.url);
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75
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76 // Skip non-GET requests
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77 if (request.method !== 'GET') {
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78 return;
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79 }
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80
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81 // Skip chrome-extension and other non-http(s) requests
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82 if (!url.protocol.startsWith('http')) {
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83 return;
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84 }
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85
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86 // Skip API calls and media uploads (always go to network)
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87 if (url.pathname.startsWith('/api/')) {
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88 return;
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89 }
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90
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91 // The HLS tool and media must always reflect the current player version.
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92 if (url.pathname.startsWith('/tools/hls_player') ||
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93 url.pathname.startsWith('/public/hls-sample/')) {
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94 return;
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95 }
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96
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97 event.respondWith(
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98 caches.match(request).then((cachedResponse) => {
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99 if (cachedResponse) {
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100 console.log('[SW] Serving from cache:', url.pathname);
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101 return cachedResponse;
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102 }
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103
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104 // Not in cache, fetch from network
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105 return fetch(request).then((networkResponse) => {
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106 // Only cache successful responses
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107 if (!networkResponse || networkResponse.status !== 200 || networkResponse.type === 'error') {
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108 return networkResponse;
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109 }
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110
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111 // Cache specific file types
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112 const shouldCache =
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113 url.pathname.endsWith('.css') ||
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114 url.pathname.endsWith('.js') ||
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115 url.pathname.endsWith('.svg') ||
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116 url.pathname.endsWith('.jpg') ||
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117 url.pathname.endsWith('.webp') ||
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118 url.pathname.endsWith('.woff') ||
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119 url.pathname.endsWith('.woff2') ||
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120 url.pathname.endsWith('.ttf') ||
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121 url.pathname.endsWith('.otf') ||
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122 url.pathname.startsWith('/blog/') ||
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123 url.pathname.startsWith('/notes/') ||
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124 url.pathname === '/';
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125
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126 if (shouldCache) {
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127 const responseToCache = networkResponse.clone();
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128 caches.open(CACHE_NAME).then((cache) => {
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129 console.log('[SW] Caching new resource:', url.pathname);
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130 cache.put(request, responseToCache);
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131 });
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132 }
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133
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134 return networkResponse;
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135 }).catch((error) => {
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136 console.log('[SW] Fetch failed:', error);
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137
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138 // Return offline page for HTML requests
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139 if (request.headers.get('Accept').includes('text/html')) {
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140 return caches.match('/offline.html');
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141 }
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142 });
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143 })
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144 );
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145 });
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146
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147 // Handle messages from the client
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148 self.addEventListener('message', (event) => {
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149 if (event.data && event.data.type === 'SKIP_WAITING') {
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150 self.skipWaiting();
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151 }
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152
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153 if (event.data && event.data.type === 'CLEAR_CACHE') {
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154 event.waitUntil(
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155 caches.keys().then((cacheNames) => {
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156 return Promise.all(
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157 cacheNames.map((cacheName) => caches.delete(cacheName))
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158 );
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159 })
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160 );
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161 }
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162 });