import { ipcMain, dialog, BrowserWindow, shell } from 'electron'
import { IPC } from '@shared/ipc/channels'
import { getStore } from '../services/store'
import { dbQuery, dbExec } from '../services/database'
import {
  startFileServer,
  stopFileServer,
  getFileServerStatus
} from '../services/fileServer'
import { getLanIps } from '../services/lanInfo'
import { fetchJson, fetchText } from '../services/network'
import { syncLibrary } from '../services/library'
import { convertFlacToWav, stopConvert } from '../services/transcode'
import {
  startMusicServer,
  stopMusicServer,
  sendMusicCmd
} from '../services/musicServer'
import { startDataServer, stopDataServer, sendDataCmd } from '../services/dataServer'
import {
  toggleDesktopLyric,
  updateDesktopLyric,
  setLyricIgnoreMouse
} from '../window/desktopLyricWindow'
import { checkUpdate } from '../services/update'
import { exportSongs, type ExportItem } from '../services/export'
import { cleanIosWavFile, ensureIosWavFiles, type WifiAudioRef } from '../services/wifiTransfer'

function broadcast(channel: string, payload: unknown): void {
  BrowserWindow.getAllWindows().forEach((w) => w.webContents.send(channel, payload))
}

export function registerIpc(): void {
  /* ---------- 配置 ---------- */
  const store = getStore()
  ipcMain.handle(IPC.STORE_GET, (_e, key: string) => store.get(key as never))
  ipcMain.handle(IPC.STORE_SET, (_e, key: string, value: unknown) =>
    store.set(key as never, value as never)
  )
  ipcMain.handle(IPC.STORE_DELETE, (_e, key: string) => store.delete(key as never))

  /* ---------- 数据库 ---------- */
  ipcMain.handle(IPC.DB_QUERY, (_e, sql: string, params: unknown[]) => dbQuery(sql, params))
  ipcMain.handle(IPC.DB_EXEC, (_e, sql: string, params: unknown[]) => {
    const r = dbExec(sql, params)
    return { changes: r.changes, lastInsertRowid: Number(r.lastInsertRowid) }
  })

  /* ---------- HTTP 文件服务 ---------- */
  ipcMain.handle(IPC.HTTP_START, async (_e, root: string, port: number) =>
    startFileServer(root, port)
  )
  ipcMain.handle(IPC.HTTP_STOP, async () => {
    await stopFileServer()
    return true
  })
  ipcMain.handle(IPC.HTTP_STATUS, () => getFileServerStatus())

  /* ---------- 局域网 ---------- */
  ipcMain.handle(IPC.NET_LAN_IPS, () => getLanIps())

  /* ---------- OSS 元数据 ---------- */
  ipcMain.handle(IPC.NET_FETCH_JSON, (_e, url: string) => fetchJson(url))
  ipcMain.handle(IPC.NET_FETCH_TEXT, (_e, url: string) => fetchText(url))

  /* ---------- 曲库同步 ---------- */
  ipcMain.handle(IPC.LIBRARY_SYNC, async () => {
    const result = await syncLibrary()
    store.set('dataVersion', String(result.version))
    return result
  })
  ipcMain.handle(IPC.LIBRARY_DATA_VERSION, () => store.get('dataVersion'))

  /* ---------- 转码 ---------- */
  ipcMain.handle(IPC.CONVERT_START, async (_e, input: string, output: string) => {
    await convertFlacToWav({
      input,
      output,
      onProgress: (p) => broadcast(IPC.CONVERT_PROGRESS, { input, progress: p })
    })
    broadcast(IPC.CONVERT_DONE, { input, output })
    return true
  })
  ipcMain.handle(IPC.CONVERT_STOP, () => {
    stopConvert()
    return true
  })
  ipcMain.handle(IPC.WIFI_ENSURE_IOS_WAV, async (_e, items: WifiAudioRef[]) => {
    await ensureIosWavFiles(items || [])
    return true
  })
  ipcMain.handle(IPC.WIFI_CLEAN_IOS_WAV, (_e, item: WifiAudioRef) => {
    cleanIosWavFile(item)
    return true
  })

  /* ---------- 传歌服务（4388） ---------- */
  ipcMain.handle(IPC.MUSIC_SERVER_START, () => {
    startMusicServer((e) => broadcast(IPC.MUSIC_SERVER_EVENT, e))
    return true
  })
  ipcMain.handle(IPC.MUSIC_SERVER_STOP, () => {
    stopMusicServer()
    return true
  })
  ipcMain.handle(IPC.MUSIC_SERVER_SEND, (_e, cmd: string, body: string) =>
    sendMusicCmd(cmd, body)
  )

  /* ---------- 数据同步服务（4389） ---------- */
  ipcMain.handle(IPC.DATA_SERVER_START, () => {
    startDataServer((e) => broadcast(IPC.DATA_SERVER_EVENT, e))
    return true
  })
  ipcMain.handle(IPC.DATA_SERVER_STOP, () => {
    stopDataServer()
    return true
  })
  ipcMain.handle(IPC.DATA_SERVER_SEND, (_e, cmd: string, body: string) =>
    sendDataCmd(cmd, body)
  )

  /* ---------- 对话框 ---------- */
  ipcMain.handle(IPC.DIALOG_OPEN_DIR, async () => {
    const r = await dialog.showOpenDialog({ properties: ['openDirectory'] })
    return r.canceled ? null : r.filePaths[0]
  })
  ipcMain.handle(IPC.DIALOG_OPEN_FILE, async () => {
    const r = await dialog.showOpenDialog({ properties: ['openFile', 'multiSelections'] })
    return r.canceled ? null : r.filePaths
  })

  /* ---------- 桌面歌词 ---------- */
  ipcMain.handle(IPC.LYRIC_TOGGLE, (_e, show: boolean) => {
    toggleDesktopLyric(show)
    broadcast(IPC.LYRIC_STATE, show)
    return true
  })
  ipcMain.on(IPC.LYRIC_UPDATE, (_e, payload) => updateDesktopLyric(payload))
  ipcMain.on(IPC.LYRIC_SET_IGNORE_MOUSE, (_e, ignore: boolean) => setLyricIgnoreMouse(ignore))

  /* ---------- 窗口控制 ---------- */
  ipcMain.on(IPC.WIN_MIN, (e) => BrowserWindow.fromWebContents(e.sender)?.minimize())
  ipcMain.on(IPC.WIN_MAX, (e) => {
    const w = BrowserWindow.fromWebContents(e.sender)
    if (!w) return
    w.isMaximized() ? w.unmaximize() : w.maximize()
  })
  ipcMain.on(IPC.WIN_CLOSE, (e) => BrowserWindow.fromWebContents(e.sender)?.close())

  /* ---------- 导出歌曲 ---------- */
  ipcMain.handle(
    IPC.EXPORT_SONGS,
    async (_e, dest: string, platform: 'android' | 'ios', list: ExportItem[]) =>
      exportSongs(dest, platform, list, (p) => broadcast(IPC.EXPORT_PROGRESS, p))
  )

  /* ---------- 更新 ---------- */
  ipcMain.handle(IPC.UPDATE_CHECK, () => checkUpdate())
  ipcMain.handle(IPC.UPDATE_OPEN_DOWNLOAD, (_e, url: string) => {
    if (url) shell.openExternal(url)
    return true
  })
}