added vid command (downloads video): vid.js module <issue #102>

lib/db.js

@@ -350,7 +350,14 @@ const data = {
         REPLY: "```Obtaining the recommendations...```",
         NO_VIDEOS: "```No videos could be found.```",
         ENTER_INPUT: "```Please enter the query you want to search for. Use the``` *.help yt* ```command for more info.```"
-    }
+    },
+	vid: {
+		DESCRIPTION: "Download youtube videos",
+		EXTENDED_DESCRIPTION: "```Get any youtube video in mp4 format by using this command with the link of the video that you want to download.```",
+		REPLY: "```Downloading your video...```",
+		INVALID_LINK: "```No video found at the given link!```",
+		ENTER_INPUT: "```Please give the link of the video you want to download. Use the``` *.help vid* ```command for more info.```"
+	}
 };
 
 module.exports = data;

modules/vid.js

@@ -0,0 +1,74 @@
+const chalk = require("chalk");
+const { MessageType, Mimetype } = require("@adiwajshing/baileys");
+const inputSanitization = require("../sidekick/input-sanitization");
+const fs = require("fs");
+const ytdl = require("ytdl-core");
+const Strings = require("../lib/db");
+const VID = Strings.vid;
+
+module.exports = {
+	name: "vid",
+	description: VID.DESCRIPTION,
+	extendedDescription: VID.EXTENDED_DESCRIPTION,
+	demo: { isEnabled: true, text: ".vid https://www.youtube.com/watch?v=djV11Xbc914" },
+	async handle(client, chat, BotsApp, args) {
+		try {
+			if (args.length === 0) {
+				await client.sendMessage(
+					BotsApp.chatId,
+					VID.ENTER_INPUT,
+					MessageType.text
+				).catch(err => inputSanitization.handleError(err, client, BotsApp));
+				return;
+			}
+
+			var link = args[0];
+			if (!ytdl.validateURL(link)) {
+				var reply = await client.sendMessage(
+					BotsApp.chatId,
+					VID.INVALID_LINK,
+					MessageType.text
+				).catch(err => inputSanitization.handleError(err, client, BotsApp));
+
+				await client.deleteMessage(BotsApp.chatId, {
+					id: reply.key.id,
+					remoteJid: BotsApp.chatId,
+					formMe: true,
+				});
+
+				return;
+			}
+
+			var vid_name = './' + link.match('[^/]*$')[0] + '.mp4';
+			var yt = ytdl(link, {filter: format => format.container === 'mp4' && ['720p', '480p', '360p', '240p', '144p'].map(() => true)});
+			yt.pipe(fs.createWriteStream(vid_name));
+			var reply = await client.sendMessage(
+				BotsApp.chatId,
+				VID.REPLY,
+				MessageType.text
+			).catch(err => inputSanitization.handleError(err, client, BotsApp));
+
+			yt.on('end', async () => {
+				await client.sendMessage(
+					BotsApp.chatId,
+					fs.readFileSync(vid_name),
+					MessageType.video, {
+						mimetype: Mimetype.mp4
+					}
+				).catch(err => inputSanitization.handleError(err, client, BotsApp));
+
+				fs.unlink(vid_name, (err) => {
+					if (err) console.log('[ERROR] : %s', chalk.redBright.bold(err));
+				});
+			});
+
+			await client.deleteMessage(BotsApp.chatId, {
+				id: reply.key.id,
+				remoteJid: BotsApp.chatId,
+				fromMe: true,
+			});
+		} catch (err) {
+			console.log('[ERROR] : %s', chalk.redBright.bold(err));
+		}
+	},
+};