// pages/goods/goods.js
var app = getApp();
Page({

  /**
   * 页面的初始数据
   */
  data: {
    userInfo: wx.getStorageSync('userInfo'),
    virtualInventoryId: null,
    goods: {}
  },

  /**
   * 生命周期函数--监听页面加载
   */
  async onLoad(options) {
    this.setData({
      userInfo: wx.getStorageSync('userInfo'),
      virtualInventoryId: wx.getStorageSync('virtualInventoryId')
    });
    this.initData(options.prodId);
    this.initCartNum();
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady() {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {

  },
  async initData(prodId) {
    let {
      data
    } = await app.ajax.gets(`/admin/bxdprod/browse/${prodId || this.data.goods.prodId}?virtualInventoryId=${this.data.virtualInventoryId}`);
    data.data.picArr = data.data.pic ? data.data.pic.split(",") : ['/images/empty.png'];
    data.data.skuDesc = data.data.skuDesc || '';
    data.data.skuDesc = data.data.skuDesc.replace(/\<img/gi, '<img class="rich-img" ');
    const initialQty = Number(data.data.qty);
    data.data.qty = Number.isSafeInteger(initialQty) && initialQty > 0 ? initialQty : 1;
    data.data.qtyInput = String(data.data.qty);
    data.data.qtyBeforeSubmit = data.data.qty;
    data.data.qtyDirty = false;
    data.data.qtyUpdating = false;
    this.setData({
      goods: data.data
    })
  },
  async initCartNum() {
    let {
      data
    } = await app.ajax.gets(`/admin/bxdusercollection/queryCartNum?userId=${this.data.userInfo.userId}&virtualInventoryId=${this.data.virtualInventoryId}`);
    this.setData({
      cartNum: data.data || 0
    })
  },
  restoreGoodsQty(qty) {
    const restoreQty = Number(qty) || 1;
    this.setData({
      'goods.qty': restoreQty,
      'goods.qtyInput': String(restoreQty),
      'goods.qtyBeforeSubmit': restoreQty,
      'goods.qtyDirty': false
    });
  },
  setGoodsQty(qty) {
    const goods = this.data.goods || {};
    const currentQty = Number(goods.qty) || 1;
    const updateData = {
      'goods.qty': qty,
      'goods.qtyInput': String(qty)
    };
    if (!goods.qtyDirty) {
      updateData['goods.qtyBeforeSubmit'] = currentQty;
      updateData['goods.qtyDirty'] = true;
    }
    this.setData(updateData);
  },
  qtyInput(e) {
    const goods = this.data.goods || {};
    const updateData = {
      'goods.qtyInput': e.detail.value
    };
    if (!goods.qtyDirty) {
      updateData['goods.qtyBeforeSubmit'] = Number(goods.qty) || 1;
      updateData['goods.qtyDirty'] = true;
    }
    this.setData(updateData);
  },
  qtyBlur(e) {
    this.commitQty(e);
  },
  qtyConfirm(e) {
    this.commitQty(e);
  },
  commitQty(e) {
    const goods = this.data.goods || {};
    const currentQty = Number(goods.qty) || 1;
    const rawValue = e && e.detail && e.detail.value !== undefined
      ? e.detail.value
      : goods.qtyInput;
    const text = String(rawValue == null ? '' : rawValue).trim();
    const target = Number(text);
    if (!/^\d+$/.test(text) || !Number.isSafeInteger(target) || target < 1) {
      wx.showToast({ title: '请输入大于0的整数', icon: 'none' });
      this.restoreGoodsQty(currentQty);
      return false;
    }
    const limitQty = Number(goods.limitQty);
    if (Number.isFinite(limitQty) && limitQty > 0 && target > limitQty) {
      wx.showToast({ title: '加购数量不能大于限购数量：' + limitQty, icon: 'none' });
      this.restoreGoodsQty(currentQty);
      return false;
    }
    const usableStocks = Number(goods.usableStocksTotal);
    if (Number.isFinite(usableStocks) && usableStocks >= 0 && target > usableStocks) {
      wx.showToast({ title: '加购数量不能大于可供库存：' + usableStocks, icon: 'none' });
      this.restoreGoodsQty(currentQty);
      return false;
    }
    this.setData({
      'goods.qty': target,
      'goods.qtyInput': String(target)
    });
    return true;
  },
  async updateSku() {
    if (this.data.goods.qtyUpdating) return;
    const previousQty = Number(this.data.goods.qtyBeforeSubmit || this.data.goods.qty) || 1;
    if (!this.commitQty()) return;
    this.setData({
      'goods.qtyUpdating': true
    });
    try {
    let {
      data
    } = await app.ajax.post({
      url: `/admin/bxdorder/bxdPiclimit`,
      data: {
        orderSaleId: this.data.userInfo.userId
      },
    });


    if (data.data.length) {
      this.restoreGoodsQty(previousQty);
      await wx.showModal({
        title: '提示',
        content: `当前下单已被限制, 订单${data.data.map(item => item.orderNumber)}存在反馈图片超时的情况，请尽快前去上传反馈图片`
      })
      return;
    }

    let goods = this.data.goods;
    await app.ajax.post({
      url: '/admin/bxdusercollection/add',
      method: "POST",
      data: {
        id: goods.collectionId,
        qty: goods.qty,
        modelId: goods.modelId,
        skuCode: goods.skuCode,
        virtualInventoryId: wx.getStorageSync('virtualInventoryId'),
      }
    });
    if (!goods.collectionId) {
      await this.initData(goods.prodId);
    } else {
      this.setData({
        'goods.qtyBeforeSubmit': goods.qty,
        'goods.qtyDirty': false
      });
    }
    await this.initCartNum();

    wx.showToast({
      title: '加入购物车成功',
    })
    } catch (e) {
      this.restoreGoodsQty(previousQty);
    } finally {
      this.setData({
        'goods.qtyUpdating': false
      });
    }
  },
  jianNum() {
    const goods = this.data.goods || {};
    if (goods.qtyUpdating) return;
    const currentQty = Number(goods.qty) || 1;
    if (currentQty <= 1) return;
    this.setGoodsQty(currentQty - 1);
    // await this.updateSku({
    //   id: goods.collectionId,
    //   qty: goods.qty
    // });
    // await this.initData();
  },
  jiaNum() {
    const goods = this.data.goods || {};
    if (goods.qtyUpdating) return;
    const currentQty = Number(goods.qty) || 1;
    const limitQty = Number(goods.limitQty);
    const usableStocks = Number(goods.usableStocksTotal);
    if (Number.isFinite(limitQty) && limitQty > 0 && currentQty + 1 > limitQty) return;
    if (Number.isFinite(usableStocks) && currentQty + 1 > usableStocks) return;
    this.setGoodsQty(currentQty + 1);
    // await this.updateSku({
    //   id: goods.id,
    //   qty: goods.qty
    // });
    // await this.initData();
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide() {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {

  }
})