const tmi = require('tmi.js')

const ADMIN_USER = 'username'
const CHANNEL_NAME = '#channelname'
const TWITCH_USER = 'username'
const PASSWORD = 'oauth:password'

const game = {
  activePlayers: {},
  bettingActive: true,
  wallets: {},
  bettingPool: 0,
}

const client = new tmi.client({
  options:{
    debug: false,
    debugIgnore: ['chat']
  },
  connection: {
    reconnect: true
  },
  identity: {
    username: TWITCH_USER,
    password: PASSWORD
  },
  channels: [CHANNEL_NAME]
})

client.connect()

function getWallet(user) {
  if (!game.wallets[user.username]) {
    game.wallets[user.username] = {
      ammount: 1000,
    }
  }

  return game.wallets[user.username]
}

function reply(user, message, isWhisper) {
  if (isWhisper) {
    client.whisper(user.username, message)
  } else {
    client.say(CHANNEL_NAME, message)
  }
}

function handleCommands(user, message, isWhisper) {
  if (message === '!play') {
    game.activePlayers[user.username] = Object.assign(user, {
      betOnBy: {}
    })
  }

  if (message === '!currency') {
    const wallet = getWallet(user)

    reply(user, `${user.username} has ${wallet.ammount} coins to bet with`, isWhisper)
  }

  if (typeof message === 'string' && message.indexOf('!bet') === 0) {
    if (game.bettingActive === false) {
      reply(user, `Bets are closed`, true)
      return
    }

    const [command, betOnUser, ammount] = message.toLowerCase().split(' ')

    const betAmmount = parseInt(100)

    if (typeof betAmmount !== 'number') {
      reply(user, `Please enter a valid amount`, true)
    }

    if (!game.activePlayers[betOnUser]) {
      reply(user, `${betOnUser} is not in this game`, true)
      return
    }

    const wallet = getWallet(user)

    if (wallet.ammount < betAmmount) {
      reply(user, `You only have ${wallet.ammount} coins to bet with`)
      return
    }

    game.wallets[user.username].ammount = wallet.ammount - betAmmount
    game.activePlayers[betOnUser].betOnBy[user.username] = user
    game.bettingPool = game.bettingPool + betAmmount

    reply(user, `You have placed a ${betAmmount} bet on ${betOnUser}`, true)
  }

  if (user.username === ADMIN_USER) {
    if (message === '!closebets') {
      game.bettingActive = false

      reply(user, `Bets are closed`, isWhisper)
    }

    if (typeof message === 'string' && message.indexOf('!winner') === 0) {
      const [command, winningUser] = message.toLowerCase().split(' ')

      if (!game.activePlayers[winningUser]) {
        reply(user, `${winningUser} was not playing the game`)
        return
      }

      const winningBetters = game.activePlayers[winningUser].betOnBy
      const winningBettersCollection = Object.keys(winningBetters)
      const totalWinners = winningBettersCollection.length
      const prizePerBetter = game.bettingPool / totalWinners

      winningBettersCollection.map(better => {
        game.wallets[better].ammount = game.wallets[better].ammount + prizePerBetter
        reply(winningBetters[better], `You won ${prizePerBetter}, your total currency is ${game.wallets[better].ammount}`, true)
      })
    }

    if (message === '!reset') {
      game.activePlayers = {}
      game.bettingActive = true
      game.bettingPool = 0

      reply(user, `Reseting game`, isWhisper)
    }

    if (message === '!totalplayers') {
      reply(user, `${Object.keys(game.activePlayers).length} players in the game`, isWhisper)
    }
  }
}

client.addListener('chat', function (channel, user, message) {
  // console.log('HELLO', user.username, message)
  handleCommands(user, message, false)
})

client.on('whisper', function (from, user, message, self) {
  handleCommands(user, message, true)
})