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/** **************************************
 *
 *   Play: Command for AleeBot
 *   Copyright (C) 2018 AleeCorp
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * *************************************/

module.exports.run = async (client, message, args, ops) => {
  const ytdl = require('ytdl-core');

  if (!message.member.voiceChannel) return message.reply('Please connect to a voice channel...');

  if (!args[0]) return message.reply('Please input a url.');

  const vaildate = await ytdl.validateURL(args[0]);

  if (!vaildate) return message.reply('Please input a **valid** url.');

  const info = await ytdl.getInfo(args[0]);

  const data = ops.active.get(message.guild.id) || {};

  if (!data.connection) data.connection = await message.member.voiceChannel.join();
  if (!data.queue) data.queue = [];
  data.guildID = message.guild.id;

  data.queue.push({
    songTitle: info.title,
    requester: message.author.tag,
    url: args[0],
    announceChannel: message.channel.id,
  });
  if (!data.dispatcher) play(client, ops, data);
  else {
    const {RichEmbed} = require('discord.js');
    const embed = new RichEmbed()
        .setTitle('This music has been added to the queue!')
        .setAuthor(info.title, client.user.avatarURL)
        .setColor(0x00afff)
        .setTimestamp()
        .addField('Title', info.title)
        .addField('Requested by:', message.author.tag)
        .setFooter('AleeBot Music Player');

    message.channel.send({embed});
  }

  ops.active.set(message.guild.id, data);
};

async function play(client, ops, data) {
  const ytdl = require('ytdl-core');
  const {RichEmbed} = require('discord.js');
  const embed = new RichEmbed()
      .setTitle('Now playing!')
      .setAuthor(data.queue[0].songTitle, client.user.avatarURL)
      .setColor(0x00afff)
      .setTimestamp()
      .addField('Title', data.queue[0].songTitle)
      .addField('Requested by:', data.queue[0].requester)
  // .addField('Link', info.url)
  // .addField('Duration', time)
      .setFooter('AleeBot Music Player');

  client.channels.get(data.queue[0].announceChannel).send({embed});

  data.dispatcher = await data.connection.playStream(ytdl(data.queue[0].url, {filter: 'audioonly'}));
  data.dispatcher.guildID = data.guildID;

  data.dispatcher.once('finish', function() {
    finish(client, ops, this);
  });
};

function finish(client, ops, dispatcher) {
  const fetched = ops.active.get(dispatcher.guildID);

  fetched.queue.shift();

  if (fetched.queue.length > 0) {
    ops.active.set(dispatcher.guildID, fetched);

    play(client, ops, fetched);
  } else {
    ops.active.delete(dispatcher.guildID);

    const vc = client.guild.get(dispatcher.guildID).me.voiceChannel;

    if (vc) vc.leave();
  }
}

exports.conf = {
  aliases: [],
  guildOnly: false,
};
exports.help = {
  name: 'play',
  description: 'Plays music.',
  usage: 'play [url]',
  category: '- Music Commands',
};