const Discord = require('discord.js');
const bot = new Discord.Client();
const config = require('./config.json');
const fs = require('fs');
const readline = require('readline');
const DBL = require('dblapi.js');
if (typeof config.dbltoken === 'undefined') {
  console.log('Skipping DBL...');
} else {
  bot.dbl = new DBL(config.dbltoken, bot);
  console.log('DBL has been found...');
}


const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: '> '
});

bot.commands = new Discord.Collection();
bot.aliases = new Discord.Collection();
bot.categories = new Discord.Collection();
bot.queue = new Discord.Collection();
bot.plugins = {
  economy : require('./plugins/economy.js'),
  settings : require('./plugins/settings.js'),
  whitelist: require('./plugins/whitelist.js'),
  gyms : require('./plugins/gyms.js')};


bot.Raven = require('raven');
bot.Raven.config(config.sentry).install();
bot.gyms = new Discord.Collection();

function cmdLoader() {
  const categories = fs.readdirSync('./commands');
  console.log(`Loading ${categories.length} categories(s) into memory\n`);
  categories.forEach(x => {
    loadGroup(x);
  });
}
function loadGroup(name) {
  const files =  fs.readdirSync(`./commands/${name}`);

  console.log(`Loading the category '${name}' into memory with a total of ${files.length} command(s)`);

  bot.commands.set(name, new Map());
  bot.aliases.set(name, new Map());

  const commands = [];
  files.forEach(x => {
    loadCmd(name, x);
    commands.push(x.split('.')[0]);
  });

  bot.categories.set(name, commands);
  console.log(`The category ${name} has been loaded.\n`);
}

function loadCmd(category, cmd) {
  try {
    console.log(`Loading the Command ${cmd.split('.')[0]}`);
    const command = require(`./commands/${category}/${cmd}`);
    bot.commands.get(category).set(command.help.name, command);
    command.conf.aliases.forEach(alias => {
      console.log(`Loading the alias ${alias} for the command ${command.help.name}`);
      bot.aliases.get(category).set(alias, command.help.name);
    });
  } catch (err) {
    console.log(`An error has occured trying to load the command '${cmd.split('.')[0]}'`);
    console.log(err.stack);
    bot.Raven.captureException(err);
  }
}


fs.readdir('./events', (err, files) => {
  if (err) {
    console.error(err);
  }
  console.log(`Attempting to load a total of ${files.length} events into the memory.`);
  files.forEach(file => {
    try {
      const eventName = file.split('.')[0];
      const event = require(`./events/${file}`);
      console.log(`Attempting to load the event "${eventName}".`);
      bot.on(eventName, event.bind(null, bot));
      delete require.cache[require.resolve(`./events/${file}`)];
    } catch (err) {
      console.log('An error has occured trying to load a event. Here is the error.');
      console.log(err.stack);
      bot.Raven.captureException(err);
    }
  });
  console.log('Event Loading complete!');
  console.log('\n');
});

rl.on('line', function(cmd) {
  const args = cmd.split(' ');
  switch (args[0]) {
  case 'guilds':
    if (bot.guilds.size === 0) {
      console.log(('[!] No guilds found.'));
    } else {
      console.log('[i] Here\'s the servers that PokeBot is connected to:');
      for (const guild of bot.guilds) {
        console.log(`   Guild Name: ${guild[1].name} - ID: ${guild[1].id}`);
      }
    }
    break;
  case 'channels':
    if (!args[1]) {
      console.log('[!] Please insert the guild\'s ID.');
    } else {
      const guild = bot.guilds.get(args[1]);
      console.log('[i] Here\'s the channels that this guild have:');
      for (const channel of guild && bot.channels) {
        console.log(`   Channel: #${channel[1].name} - ID: ${channel[1].id}`);
      }
    }
    break;
  case 'leave':
    if (!args[1]) {
      console.log('[!] Please insert the guild\'s ID.');
    } else {
      bot.guilds.get(args[1]).leave();
    }
    break;
  case 'broadcast':
    if (!args[1]) {
      console.log('[!] Please insert the guild\'s ID.');
    } else {
      const broadcast = args.join(' ').slice(48);
      let guild = null;
      guild = bot.guilds.get(args[1]);
      let channel = null;
      channel = guild.channels.get(args[2]);
      if (channel != null) {
        channel.send(broadcast);
      }
      if (channel == null) {
        console.log('Usage: broadcast [guildID] [channelID]');
      }
    }
    break;
  case 'exit':
    console.log('[i] PokeBot will now exit!');
    bot.user.setStatus('invisible');
    process.exit(0);
    break;
  case 'help': {
    let msg = ('PokeBot Console Help\n\n');
    msg += ('guilds - Shows all guilds that PokeBot\'s on.\n');
    msg += ('channels - Shows all the channels that the guilds have.\n');
    msg += ('leave - Leaves a guild.\n');
    msg += ('broadcast - Broadcasts a message to a server.\n');
    msg += ('help - Shows this command.\n');
    msg += ('exit - Exits PokeBot.\n');
    console.log(msg);
    break;
  }
  default:
    console.log('Unknown Command type \'help\' to list the commands...');
  }
  rl.prompt();
});

process.on('unhandledRejection', (err) => {
  console.error(err.stack);
  bot.Raven.captureException(err);
});
cmdLoader();
bot.login(config.token).then(() => {
  rl.prompt();
});