CameraMachine/electron/utils/socket.js

const Log = require('ee-core/log');
const CoreWindow = require('ee-core/electron/window');
const WebSocket = require('ws'); // 引入原生 ws 库
const { readConfigFile } = require('./config');
const pyapp = readConfigFile().pyapp
const {  app} = require('electron');
const path = require('path');
const fs = require('fs');

const typeToMessage = {
  run_mcu_single:['seeting','default'],
  get_deviation_data:"developer",
  set_deviation:"developer",
  get_mcu_other_info:"developer",
  set_mcu_other_info:"developer",
  send_command:"developer"
}


const previewPath = path.join(app.getPath("userData"),'preview','liveview.png');

// 确保目录存在的函数
function ensureDirectoryExistence(filePath) {
  const dir = path.dirname(filePath);
  if (fs.existsSync(dir)) {
    return true;
  }
  ensureDirectoryExistence(path.dirname(dir));
  fs.mkdirSync(dir);
}

function livePreview(data){
  if(data.msg === '预览数据发送' && data.code === 1){

    ensureDirectoryExistence(previewPath);
    const tempFilePath = `${previewPath}.tmp`;

    fs.writeFile(tempFilePath, data.data.smart_shooter_preview, 'base64', (err) => {
      if (err) {
        console.error('写入临时文件失败:', err);
      } else {
        fs.rename(tempFilePath, previewPath, (renameErr) => {
          if (renameErr) {
            console.error('重命名文件失败:', renameErr);
          } else {
            console.log(`文件已成功写入到 preview.png`);
          }
        });
      }
    });

 }

}

const pySocket = function () {

  this.init = async function () {
    await new Promise(async (resolve,reject) => {

      const win = CoreWindow.getMainWindow()
      if(app.socket){
        resolve(true);
        win.webContents.send('controller.socket.connect_open', true);
        return;
      }

      app.socket = new WebSocket('ws://'+pyapp+':7074/ws');

      // 监听连接成功事件
      app.socket.on('open', () => {
        console.log('socket open')
        resolve(true);
        win.webContents.send('controller.socket.connect_open', true);
      });

      // 监听消息事件
      app.socket.on('message', (data) => {
        try {
          console.log('socket.on.message11111111111111111111111');

          let this_data = JSON.parse(data.toString());

          if(this_data.msg_type){

            switch (this_data.msg_type){
              case 'smart_shooter_enable_preview':
                livePreview(this_data);
                break;
            }
            let channel = 'controller.socket.message_'+this_data.msg_type;
            if(typeToMessage[this_data.msg_type]){
              if(typeof typeToMessage[this_data.msg_type] === 'object'){

                typeToMessage[this_data.msg_type].map(item=>{
                  if(item === 'default'){
                    win.webContents.send(channel, this_data);
                  }else{
                    if(this.app.electron[item]) this.app.electron[item].webContents.send(channel, this_data);
                  }
                })
              }else{
                if(this.app.electron[typeToMessage[this_data.msg_type]]) this.app.electron[typeToMessage[this_data.msg_type]].webContents.send(channel, this_data);
              }
            }else{
              win.webContents.send(channel, this_data);
            }
          }
        }catch (e){
          console.log(e)
        }
      });

      // 监听连接关闭事件
      app.socket.on('close', () => {
        console.log('socket close');
        win.webContents.send('controller.socket.disconnect', null);
        app.socket = null

      });

      // 监听错误事件
      app.socket.on('error', (err) => {
        console.log('socket error');
        win.webContents.send('controller.socket.disconnect', null);
        reject(true);

      });


    })

  }
  this.sendPing = function () {
    const message = JSON.stringify({ data: 'node', type: 'ping' });
    this.sendMessage(message);
  }
  this.sendMessage = async function (message) {
    console.log('socket.=========================sendMessage');
    console.log('socket.sendMessage');
    console.log(message);
    console.log(app.socket?.readyState);
    if(!app.socket){
      await  this.init()
    }
    // 检查连接状态
    if (app.socket?.readyState === WebSocket.OPEN) {
      console.log('send');
      app.socket.send(message); // 使用 send() 发送
    }
  }

  this.disconnect = function () {
    if (app.socket) {
      app.socket.close(); // 使用 close() 方法
      app.socket = null;
    }
  }
  this.onSocketMessage = async function (message_type,callback) {  // 监听消息事件
    return new Promise(async (resolve,reject) => {
      app.socket.on('message', onSocketMessage);
      async function onSocketMessage(data){
          try {
            let this_data = JSON.parse(data.toString());

            console.log('socket.on.message2222222222222222222222222');
            console.log(this_data.msg_type);
            console.log(message_type);
            console.log(this_data);
            if(this_data.msg_type === message_type){
              app.socket.off('message', onSocketMessage);
              callback(this_data)
              resolve()
            }
          }catch (e){
            Log.error(e)
            reject(e)
          }
      }
    })
  }
  return this;
}


module.exports = pySocket;