const { app, BrowserWindow, Menu, ipcMain, globalShortcut, dialog, screen, Tray } = require('electron');
const { join } = require('path');
const { fork } = require('child_process');
const { platform } = require('process');
const mqtt = require('mqtt')
const sleep = (ms) => new Promise(res => setTimeout(res, ms));
class MainSerivce {
  #mqttChannel = null
  #client = null
  #isMin = 1
  constructor() {
    Menu.setApplicationMenu(null) // 去掉菜单栏
    app.commandLine.appendSwitch('wm-window-animations-disabled') // 拖动闪屏
    app.commandLine.appendSwitch('autoplay-policy', 'no-user-gesture-required');
    this.loadingWin = null
    this.mainWin = null
    this.icon = join(__dirname, './icon/playGame.png')
    this.contrlEvent = null
    if (!app.requestSingleInstanceLock({ key: 'contrl' })) {
      app.quit()
    } else {
      app.on('ready', this.onRead.bind(this))
      app.on('activate', (e, isVisible) => {
        if (!isVisible && this.mainWin) {
          // 兼容Mac dock 栏点击
          this.mainWin.show()
        }
      })
      app.on('window-all-closed', () => app.quit())
    }
  }

  createLoading() {
    const { size: { width, height } } = screen.getPrimaryDisplay()
    this.loadingWin = new BrowserWindow({
      frame: false, // 无边框（窗口、工具栏等），只包含网页内容
      width,
      height,
      resizable: false,
      center: true,
      icon: this.icon,
      alwaysOnTop: true,
      transparent: true // 窗口是否支持透明，如果想做高级效果最好为true
    })
    if (app.isPackaged) {
      this.loadingWin.loadFile(join(__dirname, './loading.html'))
    } else {
      this.loadingWin.loadFile('loading.html')
    }
    this.loadingWin.on('close', () => {
      this.loadingWin = null
    })
  }

  createWindow() {
    this.mainWin = new BrowserWindow({
      minWidth: 1300,
      minHeight: 760,
      width: 1300,
      height: 760,
      frame: false,
      transparent: true,
      icon: this.icon,
      webPreferences: {
        contextIsolation: true,
        nodeIntegration: true,
        webSecurity: false, // 去掉跨越
        nodeIntegrationInWorker: true,
        preload: join(__dirname, './preload.js')
      },
      show: false
    })// 创建一个窗口

    // 不同环境加载不同文件
    if (app.isPackaged) {
      this.mainWin.loadFile(join(__dirname, './index.html'))
    } else {
      this.mainWin.loadURL('http://localhost:6547/')
    }

    // 事件监听
    this.mainWin.on('close', () => { this.mainWin = null })
  }

  onRead() {
    this.createLoading()
    this.createWindow()

    // 图标
    const tray = new Tray(this.icon)
    const contextMenu = Menu.buildFromTemplate([
      {
        label: '退出',
        click: () => {
          this.mainWin.close()
          app.quit()
        }
      }
    ])
    tray.setToolTip('控制端')
    tray.on('click', () => this.mainWin.show())

    // 注册调试模式
    globalShortcut.register('Ctrl+F12', () => {
      this.mainWin.webContents.toggleDevTools()
    })

    // 最小化
    globalShortcut.register('Ctrl+B', () => {
      if (this.#isMin & 1) { this.mainWin.hide() } else {
        this.mainWin.show()
      }
      this.#isMin++
    })

    // 系统环境
    if (platform === 'win32') {
      // 右键
      tray.setContextMenu(contextMenu)
      // 禁用右键
      this.mainWin.hookWindowMessage(278, () => {
        this.mainWin.setEnabled(false);//窗口禁用
        setTimeout(() => {
          this.mainWin.setEnabled(true);
        }, 100) //延时太快会立刻启动，太慢会妨碍窗口其他操作，可自行测试最佳时间
        return true
      })
    } else if (platform === 'darwin') {
      app.dock.setIcon(join(__dirname, './icon/playGame@2x.png'))
    }

    // 通信
    ipcMain.on('signal', (_, evt, data) => {
      if (evt === 'close-loading') {
        if (this.loadingWin) this.loadingWin.close()
        this.mainWin.show()
        if (this.mainWin.isVisible()) this.connectLogi()
      } else if (evt === 'minWin') {
        this.mainWin.minimize()
      } else if (evt === 'closeWin') {
        this.#closeMqtt()
        this.mainWin.close()
      } else if (evt === 'maxWin') {
        if (data) { this.mainWin.maximize() } else {
          this.mainWin.setBounds({ width: 1300, height: 760 })
          this.mainWin.center()
        }
      } else if (evt === 'loginMqtt') {
        this.#initMqtt(data)
      } else if (evt === 'closeMqtt') {
        this.mainWin.setBounds({ width: 1300, height: 760 })
        this.mainWin.center()
        this.#closeMqtt()
      } else if (evt === 'sendMqtt') {
        try {
          const db = JSON.stringify(data)
          if (this.#client.connected && this.#mqttChannel) this.#client.publish(this.#mqttChannel, db)
        } catch (error) {
          console.log(error);
        }
      }
    })
  }

  #initMqtt(data) {
    this.#closeMqtt()
    try {
      this.#client = mqtt.connect(data.url, { username: data.room, password: data.name })
      // 监听
      this.#client.on('connect', () => this.mainWin.webContents.send('message', { type: 'connect' }))
      this.#client.on('message', (_, msg, __) => {
        try {
          const db = JSON.parse(msg.toString())
          if (db.type === 'join') this.#mqttChannel = db.channel
          this.mainWin.webContents.send('message', db)
        } catch (error) {
          console.log(error);
        }
      })
      this.#client.on('error', (e) => { this.mainWin.webContents.send('message', { type: 'disconnect' }); this.#closeMqtt() })
    } catch (error) {
      this.mainWin.webContents.send('message', { type: 'disconnect' })
    }
  }

  #closeMqtt() {
    if (this.#client) this.#client.end()
    this.#client = null
    this.#mqttChannel = null
    this.#isMin = 1
  }

  connectLogi() {
    this.contrlEvent = fork(join(__dirname, './logiControl.js'));
    this.contrlEvent.on('message', msg => {
      if (!msg || msg.type === 'err' || !msg.data || !msg.data[44]) {
        this.contrlEvent.disconnect()
        this.contrlEvent.kill(msg.pid ?? 'SIGKILL')
        this.contrlEvent = null
        dialog.showMessageBox(this.mainWin, { message: msg.text, type: 'error', title: '连接错误' }).then(async ({ response }) => {
          if (!response) {
            if (msg && msg.text.includes('请链接')) return
            await sleep(2000)
            this.connectLogi()
          }
        })
      } else {
        if (this.mainWin && !this.mainWin.isDestroyed() && this.contrlEvent) this.mainWin?.webContents.send('message', { type: 'contrl', content: msg.data })
      }
    })
  }
};
new MainSerivce()