InviTube/background.js

let ausnahme = false;
let w2gRegex = /w2g\.tv/;


// Einstellungen ziehen, ContentScript registrieren
browser.storage.local.get(
	{
		activated: true,
		instance: "redirect.invidio.us",
	}
).then((storage) => {
	if (storage.activated) {
		activateBlocker();
	} else {
		deactivateBlocker();
	}

    registerCS(storage.instance);
});


// ContentScript für aktuelle Instanz registrieren
async function registerCS(url) {
	return await browser.contentScripts.register({
    	js: [{file: "content.js"}],
    	matches: ["*://" + url + "/*"]
	});
}

// pageAction anzeigen
browser.runtime.onMessage.addListener((data, sender) => {
	if (data.type == "showPageAction") {
		browser.pageAction.show(sender.tab.id);
	}
})

// Storage onChange listener
browser.storage.onChanged.addListener((changes) => {
    if ("instance" in changes) {
        registerCS(changes.instance.newValue);
    }
    if ("enabledBlock" in changes) {
        enabledBlock = changes.enabledBlock.newValue;  
    }
});

// Wenn Icon geklickt wird Blocker de-/aktivieren
browser.browserAction.onClicked.addListener(() => {
	browser.storage.local.get("activated").then((item) => {
		if (item.activated) {
			deactivateBlocker();
		} else {
			activateBlocker();
		}
	});
});

function activateBlocker() {
	browser.browserAction.setIcon({path:"icons/piped.png"});
	browser.storage.local.set({activated: true});
}

function deactivateBlocker() {
	browser.browserAction.setIcon({path: "icons/youtube.png"});
	browser.storage.local.set({activated: false});
}


// Redirect
browser.webRequest.onBeforeRequest.addListener(async (details) => {
	
	let activated;
	let instance;
	let proxy;
	let imageRedirect;

	await browser.storage.local.get({
		activated: true,
		instance: "redirect.invidio.us",
		imageRedirect: true
	}).then((item) => {
		activated = item.activated;
		instance = item.instance;
		imageRedirect = item.imageRedirect;
	});

	if (activated) {
		const youtubeRegex = /youtube.com(\/?.*)/;
		const youtubeShortRegex = /youtu.be\/.+/;

		if (imageRedirect && details.url.startsWith("https://img.youtube.com/vi")) {
			return { redirectUrl: 'https://' + proxy + '/vi/' + details.url.split("/vi/")[1].split("/")[0] + "/hqdefault.jpg?host=i.ytimg.com" }
		}
		else if (youtubeRegex.test(details.url)) {
			return { redirectUrl: 'https://' + instance + youtubeRegex.exec(details.url)[1] };

		} else if (youtubeShortRegex.test(details.url)) {
			const youtubeShortCaptureRegex = /youtu.be\/(.+)/;
			return {redirectUrl: 'https://' + instance + '/watch?v=' + youtubeShortCaptureRegex.exec(details.url)[1]};

		} else if (details.url.startsWith("https://www.youtube-nocookie.com/embed/")) {
			return { redirectUrl: "https://" + instance + "/embed/" + details.url.split("/embed/")[1] };
		}
	}
  	},

	{
		urls: ['*://*.youtube.com/*', '*://*.youtu.be/*', '*://*.youtube-nocookie.com/*']
	},

	['blocking']
);

// URL Icon Click --> Open on YouTube
browser.pageAction.onClicked.addListener((details) => {
	browser.storage.local.get("activated").then((item) => {
		if (item.activated) {
			deactivateBlocker();
			setTimeout(() => {
				activateBlocker();
			}, 10000);
		}

		browser.tabs.create({
			url: "https://www.youtube.com/" + details.url.split("/")[3]
		});
	});
});