Discord add reconnecting functionality

Clear rpc on disconnect
Add menu button to reconnect

plugins/discord/back.js

@@ -1,71 +1,140 @@
 const Discord = require("discord-rpc");
+const { dev } = require("electron-is")
 
 const registerCallback = require("../../providers/song-info");
 
-const rpc = new Discord.Client({
-	transport: "ipc",
-});
-
 // Application ID registered by @semvis123
 const clientId = "790655993809338398";
 
+/**
+ * @typedef {Object} Info
+ * @property {import('discord-rpc').Client} rpc
+ * @property {boolean} ready
+ * @property {import('../../providers/song-info').SongInfo} lastSongInfo
+ */
+/**
+ * @type {Info}
+ */
+const info = {
+	rpc: null,
+	ready: false,
+	lastSongInfo: null,
+};
+/**
+ * @type {(() => void)[]}
+ */
+const refreshCallbacks = [];
+const resetInfo = () => {
+	info.rpc = null;
+	info.ready = false;
+	clearTimeout(clearActivity);
+	if (dev()) console.log("discord disconnected");
+	refreshCallbacks.forEach(cb => cb());
+};
+
+const connect = () => {
+	if (info.rpc) {
+		if (dev())
+			console.log('Attempted to connect with active RPC object');
+		return;
+	}
+
+	info.rpc = new Discord.Client({
+		transport: "ipc",
+	});
+	info.ready = false;
+
+	info.rpc.once("connected", () => {
+		if (dev()) console.log("discord connected");
+		refreshCallbacks.forEach(cb => cb());
+	});
+	info.rpc.once("ready", () => {
+		info.ready = true;
+		if (info.lastSongInfo) updateActivity(info.lastSongInfo)
+	});
+	info.rpc.once("disconnected", resetInfo);
+
+	// Startup the rpc client
+	info.rpc.login({ clientId }).catch(err => {
+		resetInfo();
+		if (dev()) console.error(err);
+	});
+};
+
 let clearActivity;
+/**
+ * @type {import('../../providers/song-info').songInfoCallback}
+ */
+let updateActivity;
 
 module.exports = (win, {activityTimoutEnabled, activityTimoutTime}) => {
+	// We get multiple events
+	// Next song: PAUSE(n), PAUSE(n+1), PLAY(n+1)
+	// Skip time: PAUSE(N), PLAY(N)
+	updateActivity = songInfo => {
+		if (songInfo.title.length === 0 && songInfo.artist.length === 0) {
+			return;
+		}
+		info.lastSongInfo = songInfo;
+
+		// stop the clear activity timout
+		clearTimeout(clearActivity);
+
+		// stop early if discord connection is not ready
+		// do this after clearTimeout to avoid unexpected clears
+		if (!info.rpc || !info.ready) {
+			return;
+		}
+
+		// clear directly if timeout is 0
+		if (songInfo.isPaused && activityTimoutEnabled && activityTimoutTime === 0) {
+			info.rpc.clearActivity().catch(console.error);
+			return;
+		}
+
+		// Song information changed, so lets update the rich presence
+		const activityInfo = {
+			details: songInfo.title,
+			state: songInfo.artist,
+			largeImageKey: "logo",
+			largeImageText: [
+				songInfo.uploadDate,
+				songInfo.views.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + " views"
+			].join(' || '),
+		};
+
+		if (songInfo.isPaused) {
+			// Add an idle icon to show that the song is paused
+			activityInfo.smallImageKey = "idle";
+			activityInfo.smallImageText = "idle/paused";
+			// Set start the timer so the activity gets cleared after a while if enabled
+			if (activityTimoutEnabled)
+				clearActivity = setTimeout(() => info.rpc.clearActivity().catch(console.error), activityTimoutTime || 10000);
+		} else {
+			// Add the start and end time of the song
+			const songStartTime = Date.now() - songInfo.elapsedSeconds * 1000;
+			activityInfo.startTimestamp = songStartTime;
+			activityInfo.endTimestamp =
+				songStartTime + songInfo.songDuration * 1000;
+		}
+
+		info.rpc.setActivity(activityInfo).catch(console.error);
+	};
+
 	// If the page is ready, register the callback
 	win.once("ready-to-show", () => {
-		rpc.once("ready", () => {
-			// Register the callback
-			//
-			// We get multiple events
-			// Next song: PAUSE(n), PAUSE(n+1), PLAY(n+1)
-			// Skip time: PAUSE(N), PLAY(N)
-			registerCallback((songInfo) => {
-				if (songInfo.title.length === 0 && songInfo.artist.length === 0) {
-					return;
-				}
-				// Song information changed, so lets update the rich presence
-				const activityInfo = {
-					details: songInfo.title,
-					state: songInfo.artist,
-					largeImageKey: "logo",
-					largeImageText: [
-						songInfo.uploadDate,
-						songInfo.views.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + " views"
-					].join(' || '),
-				};
-
-				// stop the clear activity timout
-				clearTimeout(clearActivity);
-
-				// clear directly if timeout is 0
-				if (songInfo.isPaused && activityTimoutEnabled && activityTimoutTime === 0) {
-					rpc.clearActivity().catch(console.error);
-					return;
-				}
-
-				if (songInfo.isPaused) {
-					// Add an idle icon to show that the song is paused
-					activityInfo.smallImageKey = "idle";
-					activityInfo.smallImageText = "idle/paused";
-					// Set start the timer so the activity gets cleared after a while if enabled
-					if (activityTimoutEnabled)
-						clearActivity = setTimeout(() => rpc.clearActivity().catch(console.error), activityTimoutTime || 10000);
-				} else {
-					// Add the start and end time of the song
-					const songStartTime = Date.now() - songInfo.elapsedSeconds * 1000;
-					activityInfo.startTimestamp = songStartTime;
-					activityInfo.endTimestamp =
-						songStartTime + songInfo.songDuration * 1000;
-				}
-
-				rpc.setActivity(activityInfo).catch(console.error);
-			});
-		});
-
-		// Startup the rpc client
-		rpc.login({ clientId }).catch(console.error);
+		registerCallback(updateActivity);
+		connect();
 	});
 };
 
-module.exports.clear = () => rpc.clearActivity();
+module.exports.clear = () => {
+	if (info.rpc) info.rpc.clearActivity();
+	clearTimeout(clearActivity);
+};
+module.exports.connect = connect;
+module.exports.registerRefresh = (cb) => refreshCallbacks.push(cb);
+/**
+ * @type {Info}
+ */
+module.exports.info = Object.defineProperties({}, Object.keys(info).reduce((o, k) => ({ ...o, [k]: { enumerable: true, get: () => info[k] } }), {}));

plugins/discord/menu.js

@@ -1,28 +1,38 @@
 const { setOptions } = require("../../config/plugins");
 const { edit } = require("../../config");
-const { clear } = require("./back");
+const { clear, info, connect, registerRefresh } = require("./back");
 
-module.exports = (win, options) => [
-	{
-		label: "Clear activity",
-		click: () => {
-			clear();
+let hasRegisterred = false;
+
+module.exports = (win, options, refreshMenu) => {
+	if (!hasRegisterred) {
+		registerRefresh(refreshMenu);
+		hasRegisterred = true;
+	}
+
+	return [
+		{
+			label: info.rpc !== null ? "Connected" : "Reconnect",
+			enabled: info.rpc === null,
+			click: connect,
+		},
+		{
+			label: "Clear activity",
+			click: clear,
 		},
-	},
-	{
-		label: "Clear activity after timeout",
-		type: "checkbox",
-		checked: options.activityTimoutEnabled,
-		click: (item) => {
-			options.activityTimoutEnabled = item.checked;
-			setOptions('discord', options);
+		{
+			label: "Clear activity after timeout",
+			type: "checkbox",
+			checked: options.activityTimoutEnabled,
+			click: (item) => {
+				options.activityTimoutEnabled = item.checked;
+				setOptions('discord', options);
+			},
 		},
-	},
-	{
-		label: "Set timeout time in config",
-		click: () => {
+		{
+			label: "Set timeout time in config",
 			// open config.json
-			edit();
+			click: edit,
 		},
-	},
-];
+	];
+};

providers/song-info.js

@@ -40,6 +40,9 @@ const getArtist = async (win) => {
 }
 
 // Fill songInfo with empty values
+/**
+ * @typedef {songInfo} SongInfo
+ */
 const songInfo = {
 	title: "",
 	artist: "",
@@ -71,6 +74,14 @@ const handleData = async (responseText, win) => {
 const callbacks = [];
 
 // This function will allow plugins to register callback that will be triggered when data changes
+/**
+ * @callback songInfoCallback
+ * @param {songInfo} songInfo
+ * @returns {void}
+ */
+/**
+ * @param {songInfoCallback} callback
+ */
 const registerCallback = (callback) => {
 	callbacks.push(callback);
 };