// electron/utils/readConfig.js

const path = require('path');
const fs = require('fs');
const Log = require('ee-core/log');
const { spawn } = require('child_process');
const { EventEmitter } = require('events');
const { liveShow, liveHide, setParams, capture, getParams,CMD,captureLive,closeOtherWindow,minimizeSmartShooter } = require('../api/camera');

const { dialog } = require('electron'); // 引入 electron 的 dialog 模块
const CoreWindow = require("ee-core/electron/window");


const { readConfigFile, writeConfigFile } = require('../utils/config');

// 进程状态管理
let cameraProcess = null;        // 子进程引用
let isProcessRunning = false;    // 进程运行状态
const processEmitter = new EventEmitter(); // 进程事件发射器

// Smart Shooter 5 / 6 与 digiCamControl 并存。
// 5 和 6 共用同一套 External API（54543 事件 / 54544 请求），不能同时开，按 controlType 只启动其中一个。
const CONTROLLERS = {
  digiCamControl: {
    exe: "CameraControl.exe",
    pathKey: "digiCamControlPath",
    label: "digiCamControl",
  },
  SmartShooter: {
    exe: "SmartShooter5.exe",
    pathKey: "SmartShooterPath",
    label: "Smart Shooter 5",
  },
  SmartShooter6: {
    exe: "SmartShooter6.exe",
    pathKey: "SmartShooter6Path",
    label: "Smart Shooter 6",
  },
}

// 历史配置 controlType 仍是 SmartShooter，保持原行为
function normalizeControlType(type) {
  return CONTROLLERS[type] ? type : "SmartShooter"
}

function isSmartShooterType(type) {
  return type === "SmartShooter" || type === "SmartShooter6"
}

function getController() {
  const config = readConfigFile() || {}
  const type = normalizeControlType(config.controlType)
  const spec = CONTROLLERS[type]
  return {
    type,
    ...spec,
    dir: config.controlPath || config[spec.pathKey] || "",
  }
}

function getExePath () {
  const controller = getController()
  const exePath = controller.dir ? path.join(controller.dir, controller.exe) : ""

  console.log('ex============ePath');
  console.log(exePath);
  return exePath
}

// 用户手动选安装目录时，按目录里实际存在的 exe 识别，5 和 6 互不覆盖
function detectController(dir) {
  if (fs.existsSync(path.join(dir, CONTROLLERS.SmartShooter6.exe))) return "SmartShooter6"
  if (fs.existsSync(path.join(dir, CONTROLLERS.SmartShooter.exe))) return "SmartShooter"
  if (fs.existsSync(path.join(dir, CONTROLLERS.digiCamControl.exe))) return "digiCamControl"
  return ""
}




async function checkCameraControlCmdExists() {
  try {

    // 拼接 CameraControlCmd.exe 的完整路径

    let exePath = getExePath()
    // 检查文件是否存在
    const exists = await fs.promises.access(exePath, fs.constants.F_OK)
        .then(() => true)
        .catch(() => false);

    if (!exists) {
      // 弹出文件夹选择对话框
      const { canceled, filePaths } = await dialog.showOpenDialog({
        title: '选择 相机控制安装软件 文件夹',
        properties: ['openDirectory']
      });

      if (!canceled && filePaths.length > 0) {
        const selectedPath = filePaths[0];

        const detected = detectController(selectedPath);
        if (!detected) {
          console.error('所选目录不是已知的相机控制软件');
          return {
            status:-1,
            msg:"所选目录中未找到 SmartShooter6.exe、SmartShooter5.exe 或 CameraControl.exe",
          }
        }
        writeConfigFile("controlType", detected)
        writeConfigFile("controlPath", selectedPath)
        writeConfigFile(CONTROLLERS[detected].pathKey, selectedPath)
      } else {
        console.error('用户未选择文件夹');
        return {
          status:-1,
          msg:"无法找到 SmartShooter6.exe、SmartShooter5.exe 或 CameraControl.exe",
        }
      }
    }
    const res = await openCameraControlCmd();
    
    // Smart Shooter 5 / 6 启动后最小化窗口；digiCamControl 走自己的最小化命令
    if(isSmartShooterType(getController().type)){
      // 等待软件启动完成
      setTimeout(async () => {
        try {
          await minimizeSmartShooter();
        } catch (error) {
          console.log('最小化SmartShooter失败:', error);
        }
      }, 3000); // 等待3秒让软件完全启动
    }
    
    return res;
  } catch (error) {
    Log.error('检查 第三方相机控制器 是否存在时出错:', error);
    throw error;
  }
}


async function openCameraControlCmd(digiCamControlPath) {
  return  new Promise(async (resolve, reject) => {
    try {
      // 获取 digiCamControl 文件夹路径

      // 拼接 CameraControlCmd.exe 的完整路径
      let exePath = getExePath()

      // 检查文件是否存在
      await fs.promises.access(exePath, fs.constants.F_OK);
      try {

        // 保存进程引用并标记为运行中
        cameraProcess = spawn(exePath);
        isProcessRunning = true;
        console.log('[CAMERA-DEBUG] spawn PID:', cameraProcess.pid, '时间:', new Date().toISOString());

        cameraProcess.stdout.on('data', (data) => {
          console.log('[CAMERA-DEBUG] stdout 收到数据:', data.toString().substring(0, 100));
          resolve(true)
        });

        // 监听进程关闭事件
        cameraProcess.on('close', (code) => {
          console.log('[CAMERA-DEBUG] close 事件触发! PID:', cameraProcess?.pid, '退出码:', code, '时间:', new Date().toISOString());
          isProcessRunning = false;
          cameraProcess = null;
          Log.info(`相机控制软件已关闭，退出码: ${code}`);
          processEmitter.emit('camera-process-closed');
        });

        cameraProcess.on('error', (err) => {
          console.log('[CAMERA-DEBUG] error 事件触发:', err.message);
          isProcessRunning = false;
          cameraProcess = null;
          Log.error('相机控制软件进程错误:', err);
        });



      } catch (error) {
        Log.error('error 第三方相机控制器:', error);
        throw error;
      }

    } catch (error) {
      Log.error('无法找到或运行 第三方相机控制器:', error);
      throw error;
    }
  })
}

async function closeCameraControlTips() {
  try {
    await  closeOtherWindow()

  }catch (e) {
    console.log(e)
  }


}

module.exports = {
  checkCameraControlCmdExists,
  closeCameraControlTips,
  minimizeSmartShooter,
  CONTROLLERS,
  isSmartShooterType,
  getController,
  // 进程状态管理
  isProcessRunning: () => isProcessRunning,
  onProcessClosed: (callback) => processEmitter.on('camera-process-closed', callback),
  removeProcessClosedListener: (callback) => processEmitter.removeListener('camera-process-closed', callback),
};