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App.ts
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App.ts
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// Main Entry for the Curious Reader Web Player App
import { ContentParser } from "./Parser/ContentParser";
import { PlayBackEngine } from "./PlayBackEngine/PlayBackEngine";
import { Workbox, WorkboxEventMap } from "workbox-window";
import { Book } from "./Models/Models";
import { FirebaseAnalyticsManager } from "./Analytics/Firebase/FirebaseManager";
let appVersion: string = "v0.3.3";
const channel = new BroadcastChannel("my-channel");
let loadingScreen = document.getElementById("loadingScreen");
export class App {
public bookName: string;
public contentParser: ContentParser;
public playBackEngine: PlayBackEngine;
public contentFilePath: string;
public imagesPath: string;
public audioPath: string;
public broadcastChannel: BroadcastChannel;
public lang: string;
public firebaseAnalyticsManager: FirebaseAnalyticsManager;
constructor(bookName: string, contentFilePath: string, imagesPath: string, audioPath: string) {
console.log("Curious Reader App " + appVersion + " initializing!");
this.bookName = bookName;
this.contentFilePath = contentFilePath;
this.imagesPath = imagesPath;
this.audioPath = audioPath;
this.firebaseAnalyticsManager = FirebaseAnalyticsManager.getInstance();
this.contentParser = new ContentParser(contentFilePath);
this.playBackEngine = new PlayBackEngine(imagesPath, audioPath);
this.broadcastChannel = new BroadcastChannel("cr-message-channel");
}
async initialize() {
try {
// Load and parse the book data
const book = await this.contentParser.parseBook();
book.bookName = this.bookName;
// Log book information for debugging
console.log("App initialized with book:", book);
// Enforce landscape mode (if supported)
this.enforceLandscapeMode();
// Register a service worker for caching
await this.registerServiceWorker(book);
// Initialize the playback engine with the parsed book data
this.playBackEngine.initializeBook(book);
console.log("Initialization completed successfully!");
} catch (error) {
// Handle any errors that may occur during initialization
console.error("Initialization error:", error);
}
}
enforceLandscapeMode() {
// Attempt to enforce landscape mode through Android bridge call
// @ts-ignore
if (window.Android && typeof window.Android.setContainerAppOrientation === 'function') {
//@ts-ignore
window.Android.setContainerAppOrientation("landscape");
}
}
async registerServiceWorker(book: Book) {
if ("serviceWorker" in navigator) {
try {
let wb = new Workbox("/sw.js", {});
await wb.register();
await navigator.serviceWorker.ready;
if (localStorage.getItem(book.bookName) == null) {
loadingScreen!.style.display = "flex";
this.broadcastChannel.postMessage({
command: "Cache",
data: {
lang: this.lang,
bookData: book,
contentFile: this.contentFilePath,
}
});
} else {
loadingScreen!.style.display = "none";
}
this.broadcastChannel.onmessage = (event) => {
console.log("CRapp: Message Received!");
console.log(event.data.command);
if (event.data.command == "Activated") {
this.broadcastChannel.postMessage({
command: "Cache",
data: {
lang: this.lang,
bookData: book,
contentFile: this.contentFilePath,
}
});
}
};
navigator.serviceWorker.addEventListener("message", handleServiceWorkerMessage);
} catch (error) {
console.log("Error Registering Service Worker", error);
}
}
}
}
channel.addEventListener("message", handleServiceWorkerMessage);
function handleServiceWorkerMessage(event): void {
if (event.data.msg == "Loading") {
let progressValue = parseInt(event.data.data.progress);
handleLoadingMessage(event, progressValue);
}
if (event.data.msg == "UpdateFound") {
console.log(">>>>>>>>>>>>>>>>>>>>>>>>>>.,update Found");
handleUpdateFoundMessage();
}
}
function handleLoadingMessage(event, progressValue): void {
let progressBar = document.getElementById("progressBar");
if (progressValue < 100) {
progressBar!.style.width = progressValue + "%";
} else if (progressValue >= 100) {
loadingScreen!.style.display = "none";
// add book with a name to local storage as cached
localStorage.setItem(event.data.data.bookName, "true");
readLanguageDataFromCacheAndNotifyAndroidApp(event.data.data.bookName);
}
}
function readLanguageDataFromCacheAndNotifyAndroidApp(bookName: string) {
//@ts-ignore
if (window.Android) {
let isContentCached: boolean = localStorage.getItem(bookName) !== null;
//@ts-ignore
window.Android.cachedStatus(isContentCached);
}
}
function handleUpdateFoundMessage(): void {
let text = "Update Found.\nPlease accept the update by pressing Ok.";
if (confirm(text) == true) {
window.location.reload();
} else {
text = "Update will happen on the next launch.";
}
}
const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
let bookName = urlParams.get("book");
const defaultBookName: string = "LetsFlyLevel2En";
if (bookName == null) {
bookName = defaultBookName;
}
console.log("Book Name: " + bookName);
let app: App = new App(bookName, `/BookContent/${bookName}/content/content.json`,
`/BookContent/${bookName}/content/images/`,
`/BookContent/${bookName}/content/audios/`);
app.initialize()