exports.run = async (bot, msg, args) => {
  if (args.length < 1) return msg.reply('Please choose a team to join');

  const team = findTeam(msg, args[0]);
  switch(args[0])
  {
  case 'aqua': {
    msg.member.addRole(msg.guild.roles.find('name', 'Aqua'));
    msg.reply(`Alright, ${team ? 'you have left team ' + team + ' and ' : 'you have '}joined team Aqua.`);
    break;
  }
  case 'rocket' : {
    msg.member.addRole(msg.guild.roles.find('name', 'Rocket'));
    msg.reply(`Alright, ${team ? 'you have left team ' + team + ' and ' : 'you have '}joined team Rocket.`);
    break;
  }
  case 'magma' : {
    msg.member.addRole(msg.guild.roles.find('name', 'Magma'));
    msg.reply(`Alright, ${team ? 'you have left team ' + team + ' and ' : 'you have '}joined team Magma.`);
    break;
  }
  default : {
    msg.reply('You have to pick, aqua, rocket, or magma.');
    break;
  }
  }
};

function findTeam(msg, team) {

  let oldTeam;

  if (msg.member.roles.find('name', 'Aqua')) {
    if (team == 'aqua') return;
    msg.member.removeRole(msg.guild.roles.find('name', 'Aqua'));
    oldTeam = 'Aqua';
  }
  else if (msg.member.roles.find('name', 'Rocket')) {
    if (team == 'rocket') return;
    msg.member.removeRole(msg.guild.roles.find('name', 'Rocket'));
    oldTeam = 'Rocket';
  }
  else if (msg.member.roles.find('name', 'Magma')) {
    if (team == 'magma') return;
    msg.member.removeRole(msg.guild.roles.find('name', 'Magma'));
    oldTeam = 'Magma';
  }
  return oldTeam;
}

exports.conf = {
  aliases: ['pick', 'choose'],
  guildOnly: true,
};

exports.help = {
  name: 'join',
  description: 'Join one of the teams!',
  usage: '<aqua/rocket/magma>',
};