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server.js
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server.js
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const express = require("express");
const app = express();
const http = require("http").createServer(app);
const path = require("path");
const io = require("socket.io")(http);
const uuidv4 = require("uuid/v4");
const ogs = require("open-graph-scraper");
app.use(express.static(path.join(__dirname, "build")));
app.use(express.json());
app.get("/", (req, res) => {
res.sendFile(path.join(__dirname, "build", "index.html"));
});
app.get("/:roomId", (req, res) => {
res.sendFile(path.join(__dirname, "build", "index.html"));
});
app.post("/youtube/:roomId", async (req, res) => {
try {
const roomId = req.params.roomId;
const videoUrl = req.body.video;
roomDetails[roomId] = {
queue: [],
messages: [],
videoDetails: {}
};
let metaData = await youtubeParser(videoUrl);
let videoId = parseVideoId(videoUrl);
if (metaData) {
let videoData = {
uuid: uuidv4(),
videoId: videoId,
title: metaData.data.ogTitle,
url: metaData.data.ogUrl,
thumbnail: metaData.data.ogImage.url
};
roomDetails[roomId].queue.push(videoData);
} else {
let videoData = {
uuid: uuidv4(),
videoId: videoId,
title: "",
url: videoUrl,
thumbnail: ""
};
roomDetails[roomId].queue.push(videoData);
}
res.status(200).send(true);
} catch (e) {
console.log(e);
res.status(404).send(false);
}
});
let roomDetails = {};
const parseVideoId = url => {
if (url) {
let regExp = /^.*(youtu\.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/;
let match = url.match(regExp);
if (match && match[2].length === 11) {
return match[2];
}
}
};
const youtubeParser = async url => {
try {
const options = { url, timeout: 4000 };
return await ogs(options);
} catch (e) {
console.log(e);
}
};
io.on("connect", socket => {
let room = socket.handshake["query"]["r_var"];
if (!roomDetails[room]) {
roomDetails[room] = {
queue: [],
messages: [],
videoDetails: {}
};
}
let details = roomDetails[room];
socket.join(room, () => {
console.log(
room,
details.queue,
details.messages,
details.videoDetails,
socket.id
);
io.to(room).emit("sync playlist", details.queue);
io.to(room).emit("sync messages", details.messages);
io.to(room).emit("sync video details", details.videoDetails);
});
socket.on("initial sync", () => {
console.log("initial sync", socket.id, details);
io.to(room).emit("initial sync", details);
});
socket.on("messages", msg => {
details.messages.push(msg);
io.to(room).emit("sync messages", details.messages);
});
socket.on("queue", async video => {
const metaData = await youtubeParser(video);
const videoId = parseVideoId(video);
if (metaData) {
let videoData = {
uuid: uuidv4(),
videoId: videoId,
title: metaData.data.ogTitle,
url: metaData.data.ogUrl,
thumbnail: metaData.data.ogImage.url
};
details.queue.push(videoData);
io.to(room).emit("sync playlist", details.queue);
}
});
socket.on("remove", idx => {
let newArr = details.queue
.slice(0, idx)
.concat(details.queue.slice(idx + 1));
details.queue = newArr;
io.to(room).emit("sync playlist", details.queue);
});
socket.on("dequeue", () => {
details.queue.shift();
io.to(room).emit("sync playlist", details.queue);
});
socket.on("video details", playback => {
details.videoDetails = playback;
io.to(room).emit("video details", playback);
});
socket.on("disconnect", function() {
socket.leave(room);
console.log("user disconnected");
});
});
const port = process.env.PORT || 80;
http.listen(port, () => {
console.log(`listening on ${port}`);
});