// General includes
const irc = require('irc')
const path = require('path')

// Load config
const config = require('./config')
const CronJob = require('cron').CronJob

// Load new plugins
const PluginManager = require('./plugins/pluginManager.js')
const pluginManager = new PluginManager(config)
pluginManager.loadAllPlugins()

// Configure logger
// create a write stream (in append mode)
const logger = require('./logger')

if (!config.irc.connect) {
  logger.info('Not connecting to IRC. Exit')
  process.exit()
}

// Start client
var client = new irc.Client(config.irc.server, config.irc.nick, {
  debug: false,
  channels: config.irc.channels,
  // floodProtection: true,
  // sasl: true,
  millisecondsOfSilenceBeforePingSent: 60000
})

var handleMessage = function (from, to, message) {
  logger.info(from + ' => ' + to + ': ' + message)

  pluginManager.testPlugins(message).then((results) => {
    for (var i = 0; i < results.length; i++) {
      logger.info('BOT => ' + results[i].to + ': ' + message)
      // TODO handle TO (nick/channel
      if (results[i].to === 'nick') {
        to = from
      }

      client.say(to, results[i].message)
    }
  }, function (error) {
    logger.error('Plugin error: ', error)
  })

  // Op
  if (message.match(/^\.op$/i)) {
    client.send('NAMES', to)
  }

  // reload config
  if (message.match(/^\.paivita$/i)) {
    // Using require for config files is dangerous
    // Rewrite this in the future
    var filename = path.resolve('./config.js')
    delete require.cache[filename]
    var config = require('./config')
    client.say(to, 'Ladattiin asetustiedosto. ' + Object.keys(config.members).length + ' käyttäjäasetusta. Päivitetään operaattorioikeuksia...')
    client.send('NAMES', to)
  }
}

client.addListener('message', function (from, to, message) {
  if (String(from) !== String(config.irc.nick)) {
    handleMessage(from, to, message)
  }
})

client.addListener('pm', function (from, message) {
  if (String(from) !== String(config.irc.nick)) {
    handleMessage(from, from, message)
  }
})

client.addListener('join', function (channel, who) {
  client.whois(who, function (result) {
    console.log(result)

    var members = config.members
    for (var memberNick in members) {
      var member = members[memberNick]

      if (typeof result.host !== 'undefined' && typeof result.user !== 'undefined') {
        if (result.host.match(member.host) && result.user.match(member.user)) {
          client.send('MODE', channel, '+o', result.nick)
        }
      }
    }
  })
})

client.addListener('error', function (message) {
  console.log('error: ', message)
})

client.addListener('names', function (channel, nicks) {
  if (typeof nicks[config.irc.nick] !== 'undefined' && nicks[config.irc.nick] === '@') {
    // go through nicks
    for (var nick in nicks) {
      if (nicks[nick] !== '@') {
        client.whois(nick, function (result) {
          var members = config.members
          for (var memberNick in members) {
            var member = members[memberNick]

            if (result.host.match(member.host) && result.user.match(member.user)) {
              client.send('MODE', channel, '+o', result.nick)
            }
          }
        })
      }
    }
  }
})

for (let i = 0; i < config.cron.length; i++) {
  let row = config.cron[i]
  logger.info('starting cron with ' + row.cron)
  const job = new CronJob(row.cron, () => {
    logger.info('cron triggered. Running command ' + row.command)
    if (client.conn !== null) {
      for (let c = 0; c < config.irc.channels.length; c++) {
        handleMessage('BOT', config.irc.channels[c], row.command)
      }
    }
  }, null, true, 'Europe/Helsinki');
}