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[] : [callback];\n fastRafPrimaryCallbacks = isPrimary ? [callback] : [];\n\n requestAnimationFrame(() => {\n const currentCallbacks = fastRafCallbacks!;\n const currentPrimaryCallbacks = fastRafPrimaryCallbacks!;\n fastRafCallbacks = undefined;\n fastRafPrimaryCallbacks = undefined;\n currentPrimaryCallbacks.forEach((cb) => cb());\n currentCallbacks.forEach((cb) => cb());\n });\n } else if (isPrimary) {\n fastRafPrimaryCallbacks!.push(callback);\n } else {\n fastRafCallbacks.push(callback);\n }\n}\n\nexport function fastPrimaryRaf(callback: NoneToVoidFunction) {\n fastRaf(callback, true);\n}\n\nlet beforeUnloadCallbacks: NoneToVoidFunction[] | undefined;\n\nexport function onBeforeUnload(callback: NoneToVoidFunction, isLast = false) {\n if (!beforeUnloadCallbacks) {\n beforeUnloadCallbacks = [];\n // eslint-disable-next-line no-restricted-globals\n self.addEventListener('beforeunload', () => {\n beforeUnloadCallbacks!.forEach((cb) => cb());\n });\n }\n\n if (isLast) {\n beforeUnloadCallbacks.push(callback);\n } else {\n beforeUnloadCallbacks.unshift(callback);\n }\n\n return () => {\n beforeUnloadCallbacks = beforeUnloadCallbacks!.filter((cb) => cb !== callback);\n };\n}\n","import { pause } from '../util/schedulers';\nimport generateIdFor from '../util/generateIdFor';\nimport {\n DEBUG,\n MEDIA_CACHE_MAX_BYTES,\n MEDIA_PROGRESSIVE_CACHE_DISABLED,\n MEDIA_PROGRESSIVE_CACHE_NAME,\n} from '../config';\n\ndeclare const self: ServiceWorkerGlobalScope;\n\ntype PartInfo = {\n type: 'PartInfo';\n arrayBuffer: ArrayBuffer;\n mimeType: 'string';\n fullSize: number;\n};\n\ntype RequestStates = {\n resolve: (response: PartInfo) => void;\n reject: () => void;\n};\n\nconst MB = 1024 * 1024;\nconst DEFAULT_PART_SIZE = 0.5 * MB;\nconst MAX_END_TO_CACHE = 2 * MB - 1; // We only cache the first 2 MB of each file\nconst PART_TIMEOUT = 60000;\n\nconst requestStates = new Map();\n\nexport async function respondForProgressive(e: FetchEvent) {\n const { url } = e.request;\n const range = e.request.headers.get('range');\n const bytes = /^bytes=(\\d+)-(\\d+)?$/g.exec(range || '')!;\n const start = Number(bytes[1]);\n const originalEnd = Number(bytes[2]);\n\n let end = originalEnd;\n if (!end || (end - start + 1) > DEFAULT_PART_SIZE) {\n end = start + DEFAULT_PART_SIZE - 1;\n }\n\n // Optimization for Safari\n if (start === 0 && end === 1) {\n const match = e.request.url.match(/fileSize=(\\d+)&mimeType=([\\w/]+)/);\n const fileSize = match && Number(match[1]);\n const mimeType = match && match[2];\n\n if (fileSize && mimeType) {\n return new Response(new Uint8Array(2).buffer, {\n status: 206,\n statusText: 'Partial Content',\n headers: [\n ['Content-Range', `bytes 0-1/${fileSize}`],\n ['Accept-Ranges', 'bytes'],\n ['Content-Length', '2'],\n ['Content-Type', mimeType],\n ],\n });\n }\n }\n\n const cacheKey = `${url}?start=${start}&end=${end}`;\n const [cachedArrayBuffer, cachedHeaders] = !MEDIA_PROGRESSIVE_CACHE_DISABLED ? await fetchFromCache(cacheKey) : [];\n\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log(\n `FETCH PROGRESSIVE ${cacheKey} (request: ${start}-${originalEnd}) CACHED: ${Boolean(cachedArrayBuffer)}`,\n );\n }\n\n if (cachedArrayBuffer) {\n return new Response(cachedArrayBuffer, {\n status: 206,\n statusText: 'Partial Content',\n headers: cachedHeaders,\n });\n }\n\n let partInfo;\n try {\n partInfo = await requestPart(e, { url, start, end });\n } catch (err) {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.error('FETCH PROGRESSIVE', err);\n }\n }\n\n if (!partInfo) {\n return new Response('', {\n status: 500,\n statusText: 'Failed to fetch progressive part',\n });\n }\n\n const { arrayBuffer, fullSize, mimeType } = partInfo;\n\n const partSize = Math.min(end - start + 1, arrayBuffer.byteLength);\n end = start + partSize - 1;\n const arrayBufferPart = arrayBuffer.slice(0, partSize);\n const headers = [\n ['Content-Range', `bytes ${start}-${end}/${fullSize}`],\n ['Accept-Ranges', 'bytes'],\n ['Content-Length', String(partSize)],\n ['Content-Type', mimeType],\n ];\n\n if (!MEDIA_PROGRESSIVE_CACHE_DISABLED && partSize <= MEDIA_CACHE_MAX_BYTES && end < MAX_END_TO_CACHE) {\n saveToCache(cacheKey, arrayBufferPart, headers);\n }\n\n return new Response(arrayBufferPart, {\n status: 206,\n statusText: 'Partial Content',\n headers,\n });\n}\n\n// We can not cache 206 responses: https://github.com/GoogleChrome/workbox/issues/1644#issuecomment-638741359\nasync function fetchFromCache(cacheKey: string) {\n const cache = await self.caches.open(MEDIA_PROGRESSIVE_CACHE_NAME);\n\n return Promise.all([\n cache.match(`${cacheKey}&type=arrayBuffer`).then((r) => (r ? r.arrayBuffer() : undefined)),\n cache.match(`${cacheKey}&type=headers`).then((r) => (r ? r.json() : undefined)),\n ]);\n}\n\nasync function saveToCache(cacheKey: string, arrayBuffer: ArrayBuffer, headers: HeadersInit) {\n const cache = await self.caches.open(MEDIA_PROGRESSIVE_CACHE_NAME);\n\n return Promise.all([\n cache.put(new Request(`${cacheKey}&type=arrayBuffer`), new Response(arrayBuffer)),\n cache.put(new Request(`${cacheKey}&type=headers`), new Response(JSON.stringify(headers))),\n ]);\n}\n\nasync function requestPart(\n e: FetchEvent,\n params: { url: string; start: number; end: number },\n): Promise {\n if (!e.clientId) {\n return undefined;\n }\n\n // eslint-disable-next-line no-restricted-globals\n const client = await self.clients.get(e.clientId);\n if (!client) {\n return undefined;\n }\n\n const messageId = generateIdFor(requestStates);\n const requestState = {} as RequestStates;\n\n const promise = Promise.race([\n pause(PART_TIMEOUT).then(() => Promise.reject(new Error('ERROR_PART_TIMEOUT'))),\n new Promise((resolve, reject) => {\n Object.assign(requestState, { resolve, reject });\n }),\n ]);\n\n requestStates.set(messageId, requestState);\n promise\n .catch(() => undefined)\n .finally(() => {\n requestStates.delete(messageId);\n });\n\n client.postMessage({\n type: 'requestPart',\n messageId,\n params,\n });\n\n return promise;\n}\n\nself.addEventListener('message', (e) => {\n const { type, messageId, result } = e.data as {\n type: string;\n messageId: string;\n result: PartInfo;\n };\n\n if (type === 'partResponse') {\n const requestState = requestStates.get(messageId);\n if (requestState) {\n requestState.resolve(result);\n }\n }\n});\n","import { APP_NAME, DEBUG } from '../config';\n\ndeclare const self: ServiceWorkerGlobalScope;\n\nenum Boolean {\n True = '1',\n False = '0',\n}\n\ntype PushData = {\n custom: {\n msg_id?: string;\n channel_id?: string;\n chat_id?: string;\n from_id?: string;\n };\n mute: Boolean;\n badge: Boolean;\n loc_key: string;\n loc_args: string[];\n random_id: number;\n title: string;\n description: string;\n};\n\ntype NotificationData = {\n messageId?: number;\n chatId?: number;\n title: string;\n body: string;\n icon?: string;\n};\n\nlet lastSyncAt = new Date().valueOf();\n\nconst clickBuffer: Record = {};\nconst shownNotifications = new Set();\n\nfunction getPushData(e: PushEvent | Notification): PushData | undefined {\n try {\n return e.data.json();\n } catch (error) {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log('[SW] Unable to parse push notification data', e.data);\n }\n return undefined;\n }\n}\n\nfunction getChatId(data: PushData) {\n if (data.custom.from_id) {\n return parseInt(data.custom.from_id, 10);\n }\n // Chats and channels have negative IDs\n if (data.custom.chat_id) {\n return parseInt(data.custom.chat_id, 10) * -1;\n }\n if (data.custom.channel_id) {\n return parseInt(data.custom.channel_id, 10) * -1;\n }\n return undefined;\n}\n\nfunction getMessageId(data: PushData) {\n if (!data.custom.msg_id) return undefined;\n return parseInt(data.custom.msg_id, 10);\n}\n\nfunction getNotificationData(data: PushData): NotificationData {\n return {\n chatId: getChatId(data),\n messageId: getMessageId(data),\n title: data.title || APP_NAME,\n body: data.description,\n };\n}\n\nasync function playNotificationSound(id: number) {\n const clients = await self.clients.matchAll({ type: 'window' }) as WindowClient[];\n const clientsInScope = clients.filter((client) => client.url === self.registration.scope);\n const client = clientsInScope[0];\n if (!client) return;\n if (clientsInScope.length === 0) return;\n client.postMessage({\n type: 'playNotificationSound',\n payload: { id },\n });\n}\n\nasync function showNotification({\n chatId,\n messageId,\n body,\n title,\n icon,\n}: NotificationData) {\n await self.registration.showNotification(title, {\n body,\n data: {\n chatId,\n messageId,\n },\n icon: icon || 'icon-192x192.png',\n badge: icon || 'icon-192x192.png',\n vibrate: [200, 100, 200],\n });\n await playNotificationSound(messageId || chatId || 0);\n}\n\nexport function handlePush(e: PushEvent) {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log('[SW] Push received event', e);\n if (e.data) {\n // eslint-disable-next-line no-console\n console.log('[SW] Push received with data', e.data.json());\n }\n }\n\n // Do not show notifications right after sync (when browser is opened)\n // To avoid stale notifications\n if (new Date().valueOf() - lastSyncAt < 3000) return;\n\n const data = getPushData(e);\n\n // Do not show muted notifications\n if (!data || data.mute === Boolean.True) return;\n\n const notification = getNotificationData(data);\n\n // Dont show already triggered notification\n if (shownNotifications.has(notification.messageId)) {\n shownNotifications.delete(notification.messageId);\n return;\n }\n\n e.waitUntil(showNotification(notification));\n}\n\nasync function focusChatMessage(client: WindowClient, data: { chatId?: number; messageId?: number }) {\n const {\n chatId,\n messageId,\n } = data;\n if (!chatId) return;\n client.postMessage({\n type: 'focusMessage',\n payload: {\n chatId,\n messageId,\n },\n });\n // Catch \"focus not allowed\" DOM Exceptions\n try {\n await client.focus();\n } catch (error) {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.warn('[SW] ', error);\n }\n }\n}\n\nexport function handleNotificationClick(e: NotificationEvent) {\n const appUrl = new URL(self.registration.scope).origin;\n e.notification.close(); // Android needs explicit close.\n const { data } = e.notification;\n const notifyClients = async () => {\n const clients = await self.clients.matchAll({ type: 'window' }) as WindowClient[];\n const clientsInScope = clients.filter((client) => {\n return new URL(client.url).origin === appUrl;\n });\n e.waitUntil(Promise.all(clientsInScope.map((client) => {\n clickBuffer[client.id] = data;\n return focusChatMessage(client, data);\n })));\n if (!self.clients.openWindow || clientsInScope.length > 0) return undefined;\n\n // If there is no opened client we need to open one and wait until it is fully loaded\n const newClient = await self.clients.openWindow(appUrl);\n if (newClient) {\n // Store notification data until client is fully loaded\n clickBuffer[newClient.id] = data;\n }\n return undefined;\n };\n e.waitUntil(notifyClients());\n}\n\nexport function handleClientMessage(e: ExtendableMessageEvent) {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log('[SW] New message from client', e);\n }\n if (!e.data) return;\n const source = e.source as WindowClient;\n if (e.data.type === 'clientReady') {\n // focus on chat message when client is fully ready\n if (clickBuffer[source.id]) {\n e.waitUntil(focusChatMessage(source, clickBuffer[source.id]));\n delete clickBuffer[source.id];\n }\n }\n if (e.data.type === 'newMessageNotification') {\n // store messageId for already shown notification\n const notification: NotificationData = e.data.payload;\n e.waitUntil(showNotification(notification));\n shownNotifications.add(notification.messageId);\n }\n if (e.data.type === 'notificationHandled') {\n const notification: NotificationData = e.data.payload;\n // mark this notification as shown if it was handled locally\n shownNotifications.add(notification.messageId);\n }\n}\n\nself.onsync = () => {\n lastSyncAt = new Date().valueOf();\n};\n","import { DEBUG } from './config';\nimport { respondForProgressive } from './serviceWorker/progressive';\nimport { respondWithCache, clearAssetCache } from './serviceWorker/assetCache';\nimport { handlePush, handleNotificationClick, handleClientMessage } from './serviceWorker/pushNotification';\n\ndeclare const self: ServiceWorkerGlobalScope;\n\nconst ASSET_CACHE_PATTERN = /[0-9a-f]{20}.*\\.(js|css|woff2?|svg|png|jpg|jpeg|json|wasm)$/;\n\nself.addEventListener('install', (e) => {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log('ServiceWorker installed');\n }\n\n // Activate worker immediately\n e.waitUntil(self.skipWaiting());\n});\n\nself.addEventListener('activate', (e) => {\n if (DEBUG) {\n // eslint-disable-next-line no-console\n console.log('ServiceWorker activated');\n }\n\n // Become available to all pages\n e.waitUntil(clearAssetCache());\n e.waitUntil(self.clients.claim());\n});\n\n// eslint-disable-next-line no-restricted-globals\nself.addEventListener('fetch', (e: FetchEvent) => {\n const { url } = e.request;\n\n if (url.includes('_websync_')) {\n return false;\n }\n\n e.respondWith((() => {\n if (url.includes('/progressive/')) {\n return respondForProgressive(e);\n }\n\n if (url.startsWith('http') && url.match(ASSET_CACHE_PATTERN)) {\n return respondWithCache(e);\n }\n\n return fetch(e.request);\n })());\n\n return true;\n});\n\nself.addEventListener('push', handlePush);\nself.addEventListener('notificationclick', handleNotificationClick);\nself.addEventListener('message', handleClientMessage);\n","import { ASSET_CACHE_NAME } from '../config';\n\ndeclare const self: ServiceWorkerGlobalScope;\n\nexport async function respondWithCache(e: FetchEvent) {\n const cache = await self.caches.open(ASSET_CACHE_NAME);\n const cached = await cache.match(e.request);\n\n if (cached) {\n return cached;\n }\n\n const remote = await fetch(e.request);\n cache.put(e.request, remote.clone());\n\n return remote;\n}\n\nexport function clearAssetCache() {\n return self.caches.delete(ASSET_CACHE_NAME);\n}\n","export default (store: AnyLiteral) => {\n let id;\n\n do {\n id = String(Math.random()).replace('0.', 'id');\n } while (store.hasOwnProperty(id));\n\n return id;\n};\n"],"names":["MEDIA_PROGRESSIVE_CACHE_NAME","ASSET_CACHE_NAME","window","innerHeight","Math","round","Set","DEFAULT_PART_SIZE","requestStates","Map","Boolean","self","addEventListener","e","type","messageId","result","data","requestState","get","resolve","lastSyncAt","Date","valueOf","clickBuffer","shownNotifications","getChatId","custom","from_id","parseInt","chat_id","channel_id","getMessageId","msg_id","async","showNotification","chatId","body","title","icon","registration","badge","vibrate","id","clientsInScope","clients","matchAll","filter","client","url","scope","length","postMessage","payload","playNotificationSound","focusChatMessage","focus","error","onsync","ASSET_CACHE_PATTERN","waitUntil","skipWaiting","caches","delete","claim","request","includes","respondWith","range","headers","bytes","exec","start","Number","end","match","fileSize","mimeType","Response","Uint8Array","buffer","status","statusText","cacheKey","cachedArrayBuffer","cachedHeaders","cache","open","Promise","all","then","r","arrayBuffer","undefined","json","fetchFromCache","partInfo","params","clientId","store","String","random","replace","hasOwnProperty","generateIdFor","promise","race","ms","setTimeout","reject","Error","Object","assign","set","catch","finally","requestPart","err","fullSize","partSize","min","byteLength","arrayBufferPart","slice","put","Request","JSON","stringify","saveToCache","respondForProgressive","startsWith","cached","remote","fetch","clone","respondWithCache","getPushData","mute","True","notification","process","description","getNotificationData","has","appUrl","URL","origin","close","map","openWindow","newClient","notifyClients","source","add"],"sourceRoot":""}