idea: DJ chatbot

[soichih]

We experimented with a DJ chatbot on venue/loungetable so that anyone can post a youtube link to switch the video being played there. It's probably good to add a bit more restriction on who can change the video, or allow each table to play a different video (currently not possible) but here is the code that I've deployed via pm2 on our server.

#!/usr/bin/env node

const admin = require('firebase-admin');
const config = require('./config');
const now = admin.firestore.Timestamp.now();

admin.initializeApp(config.firebase);
const db = admin.firestore();

const target = "loungetables";

db.collection('venues/'+target+'/chats').onSnapshot(doc=>{
    console.log("listening to messages on ", target);
    doc.docChanges().forEach(change=>{
        const doc = change.doc.data();
        if(doc.ts_utc < now) return; //skip messages posted before we started the bot

        console.log(doc);

        const youtubeV = "youtube.com/watch?v=";
        if(doc.text.includes(youtubeV)) {
            let token = "5BRc5zV4YKU"; //abuse!

            const tokens = doc.text.split(youtubeV);
            if(tokens[1]) {
                //does it look like youtube id?
                let _token = tokens[1].substring(0,11);
                if(_token.length == 11) token = _token; 
            }

            const url = "https://www.youtube.com/embed/"+token;
            console.log("switching iframe:", url);
            db.collection("venues").doc(target).update({ iframeUrl: url });
        }
    });
});

We observed that people really enjoyed this Juke-box-like capability. We mostly played BGM / live clips - mixed with occasional random youtube videos.