const name = 'mail'
const description = 'Shows mail.'
const usages = ['send <username> <message>', 'list', 'clear']
const aliases = ['mail']
const enabled = true

const permLevel = 0

const nbt = require('prismarine-nbt')
const SNBT = require('../util/snbt.js')
const toNBTUUID = require('../util/uuid-to-nbt-uuid.js')

function execute (bot, cmd, player, args, handler) {
  const subCmd = args.shift()

  let u, message, messages, msg
  switch (subCmd) {
    case 'send':
      u = args.shift()
      message = args.join(' ')
      bot.sendMail(player.name, bot.players[u].name ?? u, message)
      bot.core.run(`minecraft:tellraw @a[nbt=${SNBT.stringify(nbt.comp({ UUID: toNBTUUID(player.UUID) }))}] ${JSON.stringify([
        { text: 'Sent ', color: bot.colors.primary },
        { text: message, color: bot.colors.secondary },
        ' to ',
        { text: u, color: bot.colors.secondary },
        '.'
      ])}`)
      break
    case 'list':
      messages = bot.mail[player.name]
      if (!messages || messages.length < 1) return bot.core.run(`minecraft:tellraw @a[nbt=${SNBT.stringify(nbt.comp({ UUID: toNBTUUID(player.UUID) }))}] ${JSON.stringify({ text: 'You have no mail', color: bot.colors.primary })}`)
      msg = [{ text: 'Mail:\n', color: bot.colors.primary }]
      messages.forEach((message) => {
        msg.push(`${message.sender} (from ${message.host}): `)
        msg.push({ text: `${message.message}\n`, color: bot.colors.secondary })
      })
      msg[msg.length - 1].text = msg[msg.length - 1].text.slice(0, -1)

      bot.core.run(`minecraft:tellraw @a[nbt=${SNBT.stringify(nbt.comp({ UUID: toNBTUUID(player.UUID) }))}] ${JSON.stringify(msg)}`)
      break
    case 'clear':
      bot.mail[player.name] = []
      bot.core.run(`minecraft:tellraw @a[nbt=${SNBT.stringify(nbt.comp({ UUID: toNBTUUID(player.UUID) }))}] ${JSON.stringify([
        { text: 'Your mail has been cleared.', color: bot.colors.primary }
      ])}`)
  }
}

module.exports = { name, description, usages, aliases, enabled, execute, permLevel }