import { BrowserWindow, ipcMain, app } from 'electron'
import { db, Tables } from './db'
import { IpcChannels, IpcChannelsParams } from '../shared/IpcChannels'
import cache from './cache'
import log from './log'
import fs from 'fs'
import Store from 'electron-store'
import { TypedElectronStore } from './index'
import { APIs } from '../shared/CacheAPIs'
import { YPMTray } from './tray'
import { Thumbar } from './windowsTaskbar'

const on = <T extends keyof IpcChannelsParams>(
  channel: T,
  listener: (event: Electron.IpcMainEvent, params: IpcChannelsParams[T]) => void
) => {
  ipcMain.on(channel, listener)
}

export function initIpcMain(
  win: BrowserWindow | null,
  tray: YPMTray | null,
  thumbar: Thumbar | null,
  store: Store<TypedElectronStore>
) {
  initWindowIpcMain(win)
  initTrayIpcMain(tray)
  initTaskbarIpcMain(thumbar)
  initStoreIpcMain(store)
  initOtherIpcMain()
}

/**
 * 处理需要win对象的事件
 * @param {BrowserWindow} win
 */
function initWindowIpcMain(win: BrowserWindow | null) {
  on(IpcChannels.Minimize, () => {
    win?.minimize()
  })

  on(IpcChannels.MaximizeOrUnmaximize, () => {
    if (!win) return
    win.isMaximized() ? win.unmaximize() : win.maximize()
  })

  on(IpcChannels.Close, () => {
    app.exit()
  })
}

/**
 * 处理需要tray对象的事件
 * @param {YPMTray} tray
 */
function initTrayIpcMain(tray: YPMTray | null) {
  on(IpcChannels.SetTrayTooltip, (e, { text }) => tray?.setTooltip(text))

  on(IpcChannels.Like, (e, { isLiked }) => tray?.setLikeState(isLiked))

  on(IpcChannels.Play, () => tray?.setPlayState(true))
  on(IpcChannels.Pause, () => tray?.setPlayState(false))

  on(IpcChannels.Repeat, (e, { mode }) => tray?.setRepeatMode(mode))
}

/**
 * 处理需要thumbar对象的事件
 * @param {Thumbar} thumbar
 */
function initTaskbarIpcMain(thumbar: Thumbar | null) {
  on(IpcChannels.Play, () => thumbar?.setPlayState(true))
  on(IpcChannels.Pause, () => thumbar?.setPlayState(false))
}

/**
 * 处理需要electron-store的事件
 * @param {Store<TypedElectronStore>} store
 */
function initStoreIpcMain(store: Store<TypedElectronStore>) {
  /**
   * 同步设置到Main
   */
  on(IpcChannels.SyncSettings, (event, settings) => {
    store.set('settings', settings)
  })
}

/**
 * 处理其他事件
 */
function initOtherIpcMain() {
  /**
   * 清除API缓存
   */
  on(IpcChannels.ClearAPICache, () => {
    db.truncate(Tables.Track)
    db.truncate(Tables.Album)
    db.truncate(Tables.Artist)
    db.truncate(Tables.Playlist)
    db.truncate(Tables.ArtistAlbum)
    db.truncate(Tables.AccountData)
    db.truncate(Tables.Audio)
    db.vacuum()
  })

  /**
   * Get API cache
   */
  on(IpcChannels.GetApiCacheSync, (event, args) => {
    const { api, query } = args
    const data = cache.get(api, query)
    event.returnValue = data
  })

  /**
   * 缓存封面颜色
   */
  on(IpcChannels.CacheCoverColor, (event, args) => {
    const { id, color } = args
    cache.set(APIs.CoverColor, { id, color })
  })

  /**
   * 导出tables到json文件，方便查看table大小（dev环境）
   */
  if (process.env.NODE_ENV === 'development') {
    on(IpcChannels.DevDbExportJson, () => {
      const tables = [
        Tables.ArtistAlbum,
        Tables.Playlist,
        Tables.Album,
        Tables.Track,
        Tables.Artist,
        Tables.Audio,
        Tables.AccountData,
        Tables.Lyric,
      ]
      tables.forEach(table => {
        const data = db.findAll(table)

        fs.writeFile(
          `./tmp/${table}.json`,
          JSON.stringify(data),
          function (err) {
            if (err) {
              return console.log(err)
            }
            console.log('The file was saved!')
          }
        )
      })
    })
  }
}