const { BtHelper } = require("../../devices/bt_helper");
import { EnumCmdEvent, CmdEvent } from '../../devices/cmd_key_event';
import EventManager from '../../utils/event_bus'
// pages/OTA/ota.js
Page({

  /**
   * 页面的初始数据
   */
  data: {
    navbarData: {
      showCapsule: 1, //
      title: '固件信息',
    },
    device: {},
    otaData: {},
    btHelper: null,
    progress: 0, // 进度条初始值
    otaStatus: 0,
    buttonTips: "固件更新",
    _chunks: [],
    progressPercent: 0,
    progress: 0,
    progressTextLeft: "0%",
    _timer: null,
  },
  setOtaStatus(status) {
    switch (status) {
      case 0:
        this.setData({
          otaStatus: 0,
          buttonTips: "固件更新"
        });
        break;
      case 1:
        this.setData({
          otaStatus: 1,
          buttonTips: "下载升级包"
        });
        break;
      case 2:
        this.setData({
          otaStatus: 2,
          buttonTips: "开始更新"
        });
        break;
      case 3:
        this.setData({
          otaStatus: 3,
          buttonTips: "更新中..."
        });
        this.startProgress();
        break;

      case 4:
        this.setData({
          otaStatus: 4,
          buttonTips: "更新失败，再试一次"
        });
        break;
      default:
        break;
    }

  },
  startOtaTap() {
    let connect = getApp().globalData.device.connect ?? false
    if (!connect) {
      wx.showToast({
        title: '设备已经掉线了',
      })
      return;
    }

    let hasNewVersion = this.data.otaData.hasNewVersion ?? false
    if (!hasNewVersion) {
      wx.showToast({
        title: '没有可升级的固件',
      })
      return;
    }

    let _this = this
    wx.showModal({
      title: '有新固件可升级',
      content: _this.otaData.content ?? '提升体验，操作更流畅',
      cancelText: '以后再说',
      confirmText: '升级',
      complete: (res) => {
        if (res.cancel) {

        }

        if (res.confirm) {
          _this.downloadFile(_this.otaData.url)
        }
      }
    })
    // const btHelper = BtHelper.getInstance();
    // btHelper.ota(this.data.otaData.file_url)

  },
  downloadFile(url) {

    urlPath = updateData.url ?? "";
    content = updateData.content ?? "暂无更新";

    var list = urlPath.split("/");
    // let cachePath = await PathUtil.getDownloadPath(fileName: list.last ?? 'OTAUpgrade.OTA');
    const fs = wx.getFileSystemManager();

    // 构建本地文件路径
    const localFilePath = list[list.length - 1];
    let _this = this;
    // 判断文件是否存在
    fs.access(localFilePath, (err) => {
      if (err) {
        // 文件不存在，开始下载
        wx.downloadFile({
          url: url, // 下载资源的URL
          success: (res) => {
            if (res.statusCode === 200) {
              // 下载成功，保存文件路径
              const filePath = res.tempFilePath;

              // 将下载的文件移动到本地路径
              fs.rename({
                oldPath: filePath,
                newPath: localFilePath,
                success: () => {

                  // this.setData({
                  //   localFilePath: localFilePath
                  // });

                  // 调用 OTA 更新方法
                  // const btHelper = BtHelper.getInstance();
                  // btHelper.ota(localFilePath);

                  wx.showToast({
                    title: '文件下载成功',
                  });
                  _this.readFile(localFilePath);
                },
                fail: (err) => {
                  wx.showToast({
                    title: '文件移动失败',
                  });
                  console.error('文件移动失败:', err);
                }
              });
            } else {
              wx.showToast({
                title: '文件下载失败',
              });
            }
          },
          fail: (err) => {
            wx.showToast({
              title: '文件下载失败',
            });
            console.error('下载文件失败:', err);
          }
        });
      } else {
        _this.readFile(localFilePath);
        wx.showToast({
          title: '文件已存在，跳过下载',
        });
      }
    });
  },
  readFile(localFilePath) {

    if (!localFilePath) {
      wx.showToast({
        title: '下载文件为空',
      });
      return;
    }
    this.setOtaStatus(2);
    const fs = wx.getFileSystemManager();

    let _this = this;
    fs.readFile({
      filePath: localFilePath,
      encoding: 'base64', // 可以选择 'utf8' 或 'base64'
      success: (res) => {

        // const btHelper = BtHelper.getInstance();
        //   btHelper.ota(localFilePath);

        // console.log('文件内容:', res.data);
        _this.startSend();
      },
      fail: (err) => {
        wx.showToast({
          title: 'OTA文件下载失败',
        });
        console.error('文件读取失败:', err);
      }
    });
  },
  startSend() {
    const chunkSize = 20; // 每次发送的数据块大小
    const chunks = [];

    for (let i = 0; i < data.length; i += chunkSize) {
      chunks.push(data.slice(i, i + chunkSize));
    }

    this.data._chunks = chunks;
    const btHelper = BtHelper.getInstance();
    btHelper.otaCmd(1)
  },
  sendOtaData() {
    const btHelper = BtHelper.getInstance();
    this.data._chunks.forEach(element => {
      btHelper.otaData(element)
    });
    this.startProgress()
  },
  endEnd() {
    const btHelper = BtHelper.getInstance();
    btHelper.otaCmd(0)
  },

  updateProgress(newProgress) {
    this.setData({
      progress: newProgress,
    });
  },

  // 示例：模拟进度更新
  simulateProgressUpdate() {
    let currentProgress = 0;
    const interval = setInterval(() => {
      if (currentProgress >= 100) {
        clearInterval(interval);
        wx.showToast({
          title: '升级完成',
        });
      } else {
        currentProgress += 10;
        this.updateProgress(currentProgress);
      }
    }, 500);
  },
  startProgress: function () {
    const _this = this;
    let progress = 0;
    // 定时器，每100毫秒执行一次
    _this._timer = setInterval(function () {
      if (progress >= 100) {
        clearInterval(_this._timer); // 停止定时器
        _this.setData({
          progress: 0,
          progressPercent: 0,
          showProgress: false,
        });
        _this.data.otaData.hasNewVersion = false;
        _this.setOtaStatus(0)
        wx.showToast({
          title: '数据上传成功',
        })
      } else {
        progress += 1; // 每次增加1%
        let ptl = (progress / 2) + "%"
        _this.setData({
          progress: progress,
          progressPercent: progress,
          progressTextLeft:ptl  // 文字位置跟随进度     
        });
      }
    }, 100);
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    let param = JSON.parse(options.param)
    console.log(param)
    let otaData = param.otaData
    let device = param.device
    device.clientType = device.clientType ?? device.ProdModel
    this.setData({
      otaData: otaData,
      device: device,
      isShowOta: device.clientType === 'MW-S2(BLE)'
    })

    let _this = this;
    EventManager.addNotification(CmdEvent.eventName, function (event) {
      let name = event.name;
      console.log("OTA页：", event)
      switch (name) {
        case EnumCmdEvent.otaCmd:
          let otaCmd = event.otaCmd;
          let kind = event.kind;
          if (otaCmd === 1 && kind == 1) {
            // 开始发送
            _this.sendOtaData()
          } else if (otaCmd === 0 && kind == 1) {
            // 发送结束
            _this.endEnd()
          }
          break;
      }
    }, this)



  },

})