discord-dj/runtime/Installer.js

Discord DJ Bot. Let you play music in your server. Inspired by PlugDJ

var Utils = require('../lib/Logic/Utils.js');
var Discordie = require('discordie');
var child_process = require('child_process');

var inviteRegex = /https?:\/\/discord\.gg\/([A-Za-z0-9-]+)\/?/;

module.exports = function(bot, data, shouldLogin, callback) {

    var rl = require('readline').createInterface({
        input: process.stdin,
        output: process.stdout
    });

    console.log('Starting installation...');

    function checkDecoder(cb) {
        var cmds = ["avconv", "ffmpeg", "avconv.exe", "ffmpeg.exe"];
        if(Utils.exists(data['decoder-path'])) {
            cmds.unshift(data['decoder-path']);
        } else {
            cmds.unshift(process.cwd() + '/ffmpeg/ffmpeg');
            cmds.unshift(process.cwd() + '/ffmpeg/ffmpeg.exe');
        }
        var encoder = null;

        for(var i = 0; i < cmds.length; i++) {
            var p = child_process.spawnSync(cmds[i]);
            if(!p.error) {
                console.log('Decoder found.');
                encoder = cmds[i];
                break;
            }
        }

        if(encoder == null) {
            console.log('The decoder was not found.');
            console.log('Please, install FFmpeg or Libav');
            console.log('After you have done that, press enter (leaving it blank)');
            console.log('If it still doesn\'t work, paste the executable path (Example: C://ffmpeg/ffmpeg.exe)');
            console.log('http://guichaguri.github.io/DiscordDJ/');
            rl.question("Executable Path: ", function(path) {
                data['decoder-path'] = path;
                checkDecoder(cb);
            });
        } else {
            cb();
        }
    }

    var disconnected = function() {
        console.log('Login Failed.');
        login();
    };

    function login() {
        rl.question("Email: ", function(email) {
            rl.question("Password: ", function(pass) {
                data['email'] = email;
                data['password'] = pass;
                bot.connect({email: email, password: pass});
            });
        });
    }

    function server() {
        data['token'] = bot.token;

        bot.Dispatcher.removeListener(Discordie.Events.GATEWAY_READY, server);
        bot.Dispatcher.removeListener(Discordie.Events.DISCONNECTED, disconnected);

        rl.question("Voice Channel Invite Link: ", function(link) {
            var code = inviteRegex.exec(link);
            if(code == null) {
                console.log('The invite link is invalid!');
                server();
            } else {
                bot.Invites.accept(code[1]).then(function(res) {
                    if(res.channel.type != 'voice') {
                        console.log('The channel is not a voice channel.');
                        server();
                    } else {
                        var dj = {
                            'server': res.guild.id,
                            'voice-channel': res.channel.id
                        };
                        data['djs'] = [dj];

                        rl.question("Add another server? (Y/N) ", function(answer) {
                            if(answer.toLowerCase() == 'y') {
                                server();
                            } else {
                                rl.close();
                                console.log('Basic information configured! The bot is ready to run now.');
                                callback(data);
                            }
                        });

                    }
                }, function() {
                    console.log('The invite link was not accepted');
                    server();
                });
            }
        });
    }

    if(shouldLogin) {

        bot.Dispatcher.on(Discordie.Events.GATEWAY_READY, server);
        bot.Dispatcher.on(Discordie.Events.DISCONNECTED, disconnected);
        checkDecoder(login);

    } else {

        checkDecoder(server);

    }
};