import Telegraf from 'telegraf'
import { saveChat, getChats, saveLogoutTime, getLastLogoutTime, saveKillCount, getKillCount,
  saveLevelUp, getLevelUpCount, saveLevel, setOnlineState, setOfflineState, getPlayersData
} from './database'
import {
  EVENT_TYPE_JOIN, EVENT_TYPE_DEATH, EVENT_TYPE_QUIT, EVENT_TYPE_PLAYER_LEVEL_CHANGE,
  EVENT_TYPE_PLAYER_KILLED_ENTITY
} from './types'
import { currentTime } from './utility'
import { getEntityDeathMessage, getEntityName } from './ru'

const bot = new Telegraf('643297173:AAGuqfZx3GhiiARwvY7AtWTTFw1T-2FiwCM')

bot.start(({ message: { chat: { id } } }) => saveChat(id))
bot.command(
  'players',
  ({ reply }) => getPlayersData()
    .then(getPlayersData => reply(
      getPlayersData
        .map(({ displayName, level, online }) => `${displayName} уровень ${level} ${online ? 'онлайн' : 'оффлайн'}`)
        .join('\n')
    ))
)
bot.launch()

const sendMessageToAll = text => getChats()
  .then(chats => chats.map(({ chatId }) => chatId)
    .forEach(chatId => bot.telegram.sendMessage(chatId, text))
  )

const JOIN_NOTIFICATION_TIME_DELTA = 60 * 60 // 1h
const LEVEL_NOFIFICATION_EACH_LEVELS = 5
const KILL_NOTIFICATION_EACH_KILLS = 50

export const sendEvent = ({ type, displayName, ...payload }) => {
  switch (type) {
    case EVENT_TYPE_JOIN:
      setOnlineState(displayName)
      getLastLogoutTime(displayName)
        .then(lastLogoutTime => lastLogoutTime < currentTime() - JOIN_NOTIFICATION_TIME_DELTA &&
          sendMessageToAll(`Игрок ${displayName} присоединился!`))
      break
    case EVENT_TYPE_QUIT:
      setOfflineState(displayName)
      saveLogoutTime(displayName)
      break
    case EVENT_TYPE_DEATH:
      sendMessageToAll(`Игрок ${displayName} ${getEntityDeathMessage(payload)} :(`)
      break
    case EVENT_TYPE_PLAYER_LEVEL_CHANGE:
      const { newLevel, oldLevel } = payload
      saveLevel(displayName, newLevel)
      if (oldLevel && newLevel < oldLevel) {
        return
      }
      const levelUpCount = getLevelUpCount(displayName)
      if (newLevel % LEVEL_NOFIFICATION_EACH_LEVELS === 0 &&
        levelUpCount >= LEVEL_NOFIFICATION_EACH_LEVELS
      ) {
        sendMessageToAll(`Игрок ${displayName} прокачался до уровня ${newLevel}!`)
        saveLevelUp(displayName, 0)
      } else {
        saveLevelUp(displayName, levelUpCount + 1)
      }
      break
    case EVENT_TYPE_PLAYER_KILLED_ENTITY:
      getKillCount(displayName, payload.entityName)
        .then(killCount => {
          const newKillCount = killCount + 1
          saveKillCount(displayName, payload.entityName, newKillCount)
          if (newKillCount % KILL_NOTIFICATION_EACH_KILLS === 0) {
            sendMessageToAll(`${getEntityName(payload)} повержен(а) игроком ${displayName}. Убито ещё ${KILL_NOTIFICATION_EACH_KILLS}! Всего: ${newKillCount}`)
          }
        })
      break
  }
}