background.js

function set_badge(enable) {
	const text = enable ? '' : 'off';
	enable ? chrome.browserAction.setBadgeText({ text }) : chrome.browserAction.setBadgeText({ text });
}

function set_insert_enable(enable) {
	if (enable) {
		chrome.browserAction.setIcon({ path: 'icon/green128.png' });
		chrome.browserAction.setBadgeBackgroundColor({ color: '#ff0000' });
	}
	else {
		chrome.browserAction.setIcon({ path: 'icon/gray.png' });
		chrome.browserAction.setBadgeBackgroundColor({ color: '#cccccc' });
	}
}

function check_insert_enable() {
	chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
		tabs[0] && set_insert_enable(tabs[0].url.match(/^https:\/\/store.playstation.com\//g));
	});
}

let extension_enable = true;

chrome.storage.local.get('pss_meta', item => {
	item['pss_meta'] !== undefined && (extension_enable = item['pss_meta']);
	check_insert_enable();
	set_badge(extension_enable);
});

chrome.storage.local.get('pss_version', item => {
	const current_version = chrome.runtime.getManifest().version;
	const storage_version = item && item['pss_version'] ? item['pss_version'] : '0.0.0';
	if (current_version !== storage_version) {
		chrome.storage.local.clear();
	}
	chrome.storage.local.set({ 'pss_version': current_version });
});


chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
	if (tab.url.match(/^https:\/\/store.playstation.com\//g) && extension_enable) {
		extension_enable && chrome.tabs.sendMessage(tab.id, { action: "inject_metacritic" });
	}
	check_insert_enable();
});

chrome.browserAction.onClicked.addListener(tab => {
	extension_enable = extension_enable ? false : true;
	set_badge(extension_enable);
	if (tab.url.match(/^https:\/\/store.playstation.com\//g)) {
		const action = extension_enable ? 'inject_metacritic' : 'disable_inject';
		chrome.tabs.sendMessage(tab.id, { action });
	}
	chrome.storage.local.set({ 'pss_meta': extension_enable });
});

chrome.tabs.onHighlighted.addListener(highlightInfo => {
	check_insert_enable();
});

chrome.runtime.onMessage.addListener((request, sender, callback) => {
	if (request.action === 'fetch_http') {
		fetch(request.url, { method: 'get' })
			.then(response => {
				if (!response.ok) throw new Error(response.statusText);
				return response.text();
			})
			.then(response_text => {
				callback({ state: 'ok', content: response_text });
				return;
			})
			.catch(err => {
				callback({ state: 'error', content: err });
			})
		return true;
	}
});