import QR from '../../utils/qrcode'
import Poster from '../../miniprogram_dist/poster/poster';

let app = getApp();
Page({
  data: {
    authorizeVisible: false,
    userInfo: {},
    qrImagePath: "",
    imageUrl: "",
  },
  onShareAppMessage() {},
  showAuth() {
    this.setData({
      authorizeVisible: true
    })
  },
  onLoad(options) {
    this.initData();
  },
  initData() {
    // 获取用户信息 小程序码
    this.queryMember().then((result) => {
      wx.showLoading({
        title: '二维码生成中···',
      });
      // 获取海报数据
      let posterData = this.getPosterConfig();
      // 绘制设置海报
      this.onCreatePoster(posterData);
    });
  },

  onPosterSuccess(e) {
    wx.hideLoading();
    const {
      detail
    } = e;
    console.log("detail:", detail)
    this.setData({
      imageUrl: detail
    })
  },
  onPosterFail(err) {
    wx.hideLoading();
    console.error(err);
  },

  /**
   * 异步生成海报
   */
  onCreatePoster(posterConfig) {
    console.log("posterConfig:", posterConfig);
    this.setData({
      posterConfig: posterConfig
    }, () => {
      Poster.create(true); // 入参：true为抹掉重新生成
    });
  },

  // 获取海报数据
  getPosterConfig() {
    // 合成图片需要的数据
    let {
      userInfo
    } = this.data;

    let blocks = [{
      x: 0,
      y: 0,
      width: 690,
      height: 900,
      backgroundColor: "#ffffff",
      borderRadius: 10,
    }];
    let images = [{
      x: 286,
      y: 30,
      width: 120,
      height: 120,
      borderRadius: 120,
      zIndex: 11,
      url: userInfo.avatar,
    }, {
      x: 126,
      y: 220,
      width: 440,
      height: 440,
      zIndex: 11,
      url: userInfo.memberUrl,
    }];
    let lines = [];
    let texts = [{
      x: 690 / 2,
      y: 192,
      width: 690,
      fontSize: 36,
      color: "#3680EB",
      textAlign: "center",
      zIndex: 11,
      text: userInfo.nickname,
    }, {
      x: 690 / 2,
      y: 720,
      width: 690,
      fontSize: 28,
      color: "#666666",
      textAlign: "center",
      zIndex: 11,
      text: "深士照明",
    }, {
      x: 690 / 2,
      y: 800,
      width: 690,
      fontSize: 28,
      color: "#666666",
      textAlign: "center",
      zIndex: 11,
      text: "扫码即获专属积分，兑换超值奖品",
    }];

    let posterData = {
      width: 690,
      height: 900,
      debug: false,
      blocks: blocks,
      images: images,
      lines: lines,
      texts: texts,
    }
    return posterData;
  },

  /**
   * 获取会员信息
   */
  queryMember() {
    let _this = this;
    return new Promise((resolve, reject) => {
      app.post({
        url: app.api.member,
        data: {}
      }).then((result) => {
        let userInfo = result
        _this.setData({
          userInfo: userInfo,
          qrImagePath: userInfo.memberUrl,
        })
        resolve();
      })
    });
  },

  /**
   * 保存图片到本地
   */
  saveImageToPhotosAlbum() {
    let _this = this;
    if (!_this.data.imageUrl) {
      wx.showToast({
        title: "图片加载中,请重试",
        icon: "none"
      })
      return;
    }
    wx.saveImageToPhotosAlbum({
      filePath: _this.data.imageUrl,
      success(res) {
        wx.showToast({
          title: '保存成功',
          icon: 'success'
        });
      },
      fail(err) {
        wx.getSetting({
          success: (res) => {
            if (!res.authSetting['scope.writePhotosAlbum']) {
              // 未授权
              wx.showModal({
                title: '提示',
                content: '小程序请求访问相册权限',
                confirmText: '前往授权',
                success(res) {
                  if (res.confirm) {
                    wx.openSetting({
                      success(res) {}
                    })
                  } else if (res.cancel) {}
                }
              })
            }
          }
        })
      }
    })
  },







  // 创建二维码
  createQrCode(content, canvasId, cavW, cavH) {
    //调用插件中的draw方法，绘制二维码图片
    QR.api.draw(content, canvasId, cavW, cavH);
    this.canvasToTempImage(canvasId);
  },
  //获取临时缓存图片路径，存入data中
  canvasToTempImage(canvasId) {
    let that = this;
    wx.canvasToTempFilePath({
      canvasId, // 这里canvasId即之前创建的canvas-id
      success: function (res) {
        let tempFilePath = res.tempFilePath;
        console.log(tempFilePath);
        that.setData({ // 如果采用mpvue,即 this.imagePath = tempFilePath
          qrImagePath: tempFilePath,
        });
      },
      fail: function (res) {
        console.log(res);
      }
    });
  },
  //适配不同屏幕大小的canvas
  setCanvasSize(sz) {
    var size = {};
    try {
      var res = wx.getSystemInfoSync();
      var scale = 750 / sz; //不同屏幕下canvas的适配比例；设计稿是750宽
      var width = res.windowWidth / scale;
      var height = width; //canvas画布为正方形
      size.w = width;
      size.h = height;
    } catch (e) {
      // Do something when catch error
      console.log("获取设备信息失败" + e);
    }
    return size;
  },


})