import wx from '../../utils/wx';
import event from '../../common/event';
import formatImage from '../../utils/formatImage';
import detailModel from '../../models/product/detail';
import cartModel from '../../models/cart/cart';
import cartHandle from '../../models/cart/cart-handle';

import Picker from '../goodsDetail/picker/picker';

const app = getApp();
const router = global.router;

function _queryFromServiceAsync(fn) {
  if (fn) {
    let args = [...arguments];

    args.shift();

    args[0] = args[0] || {};
    Object.assign(args[0], {
      app_type: app.getAppType()
    });

    return fn(...args);
  } else {
    return Promise.reject();
  }
}

Page({
  data: {
    isEditing: false,
    pickerData: {
      view: {
        isShow: false,
        isSoldOutSoon: false,
        goodsList: [],
        sizeList: [],
        image: '',
        goodPrice: '',
        price: '',
        buyNumber: 1,
        minusButtonEnable: false,
        plusButtonEnable: true,
        buyButtonEnable: true,
        buy_limit_number: 0,
        bundle_count: 0
      },
      sourceType: 'goodsDetail'
    }
  },
  onLoad() {
    this.event = {...event};
    this.event.removeAllListeners();

    Picker.init(this);
  },
  onShow() {
    this.getCartData();
  },
  onHide: function() {
    if (this.data.isEditing) {
      this.editCartStatus({clearEditing: true});
    }
  },
  showToast(title) {
    wx.showToast({
      title: title,
      icon: 'none',
      duration: 1000
    });
  },
  showModal(title, options) {
    return wx.showModal(Object.assign({
      title: '',
      content: title,
      cancelText: '取消',
      confirmText: '确认',
      confirmColor: '#d0021b'
    }, options));
  },
  goShopping() {
    router.go('home');
  },
  handleOrdinaryCartData(data) {
    let resData = cartHandle.formatOrdinaryCartData(data, true);

    this._allGoodsList = resData.allGoodsList;
    delete resData.allGoodsList;

    if (this._closePriceDownTips) {
      resData.priceDownTips = '';
    }

    this.setData(resData);
    this._oldOrdinaryCartData = resData;

    return resData;
  },
  getCartData() {
    _queryFromServiceAsync(cartModel.getCartData).then(res => {
      if (res.code === 200 && res.data) {
        return this.handleOrdinaryCartData(res.data);
      } else {
        return Promise.reject();
      }
    }).catch(() => {
      this.setData({isEmptyCart: true});
    });
  },
  editCartStatus(e) {
    let data = {isEditing: !this.data.isEditing};

    if (e.clearEditing) {
      data.isEditing = false;
    }

    if (!data.isEditing && this.data.isSelectAll !== this._oldOrdinaryCartData.isSelectAll) {
      data.isSelectAll = this._oldOrdinaryCartData.isSelectAll;
    }

    this._removeGoodsList = {};
    this.setData(data);
  },
  closePriceDownTips() {
    this._closePriceDownTips = true;
    this.setData({priceDownTips: ''});
  },
  editCart(list, selected) {
    list = cartHandle.changeGoodsListData(list, selected);

    if (!list.length) {
      return Promise.resolve({});
    }

    return _queryFromServiceAsync(cartModel.selectAndQueryCart, {
      product_sku_list: JSON.stringify(list)
    }).then(res => {
      if (res && res.code === 200 && res.data) {
        return this.handleOrdinaryCartData(res.data);
      } else {
        return Promise.reject({});
      }
    }).catch(() => {
      this.setData(this._oldOrdinaryCartData);
    });
  },
  removeCartGoodsAsync(list) {
    list = cartHandle.changeGoodsListData(list);

    if (!list.length) {
      return Promise.resolve({});
    }

    return _queryFromServiceAsync(cartModel.removeAndQueryCart, {
      product_sku_list: JSON.stringify(list)
    }).then(res => {
      if (res && res.code === 200) {
        return this.handleOrdinaryCartData(res.data);
      }
    });
  },
  touchStartAction(e) {
    this.event.emit('cart-touch-start', e);
  },
  showMorePromotion(e) {
    let pid = e.currentTarget.dataset.pid;
    let promotionMoreStatus = this.data.promotionMoreStatus || {};

    promotionMoreStatus[pid] = !promotionMoreStatus[pid];
    this.setData({promotionMoreStatus});
  },
  navToPromotionPage(e) {
    let pItem = e.currentTarget.dataset.promotion;
    let promotion_type = pItem.promotion_type;

    let gStatus = (+pItem.status === 10 || +pItem.status === 30);

    if (promotion_type === 'Gift' && gStatus) {
      router.go('cartGift', {
        promotion_id: pItem.promotion_id,
        is_gift: 1,
        status: pItem.status
      });
    } else if (promotion_type === 'Needpaygift' && gStatus) {
      router.go('cartGift', {
        promotion_id: pItem.promotion_id,
        status: pItem.status
      });
    } else {
      router.go('productSearch', {
        title: '优惠活动商品',
        promotionTitle: pItem.promotion_title,
        promotionId: pItem.promotion_id
      });
    }
  },
  navToGiftPage(e) {
    let promotion = e.currentTarget.dataset.promotion;

    if (promotion.showArrow) {
      router.go('cartGift', {
        promotion_id: promotion.promotion_ids,
        is_gift: promotion.isGift ? 1 : 0,
        status: 10
      });
    }
  },
  navToDetailPage(e) {
    let item = e.detail;

    if (item.product_skn) {
      router.go('productDetail', {
        productSkn: item.product_skn
      });
    }
  },
  chooseGoodsItem(e) {
    let item = e.detail;

    this.editCart([item]);
  },
  chooseGoodsBundle(e) {
    let bundle = e.detail;

    this.editCart(bundle.goods_list, bundle.selected);
  },
  editGoodsNum(e) {
    let goods = e.detail;

    if (goods) {
      return _queryFromServiceAsync(cartModel.editCartGoodsNum, {
        product_sku: goods.product_sku
      }, goods.isAdd).then(res => {
        if (res && res.code === 200) {
          this.editCart([goods], 'Y');
        }
      });
    }
  },
  editBundleNum(e) {
    let bundle = e.detail;

    if (bundle) {
      return _queryFromServiceAsync(cartModel.editCartBundleNum, {
        activity_id: bundle.pool_id,
        batch_no: bundle.pool_batch_no
      }, bundle.isAdd).then(res => {
        if (res && res.code === 200) {
          this.editCart(bundle.goods_list, 'Y');
        }
      });
    }
  },
  editGoodsColorSize(e) {
    let goods = e.detail;
    let pickData = this.data.pickerData;

    this._cureditGoods = goods;

    pickData.view.should_hidden_number_view = (goods.bundle_activity_id && goods.batch_no);
    pickData.view.min_buy_number = goods.min_buy_number > 0 ? goods.min_buy_number : 1;

    detailModel.productInfo(goods.product_skn).then(res => {
      if (res && res.code === 200) {
        let ImgUrls = [];
        let color_length = 0;

        if (res.data.goods_list) {
          color_length = res.data.goods_list.length;
        }
        res.data.goods_list.map((item, index) => {
          let images = item.images_list;

          ImgUrls = [...ImgUrls, ...images];
          if (index === 0 && color_length === 1) {
            item.selected = true;
            this.data.colorSelected = true;
            this.data.selectedProductId = item.goods_id;
          }
        });

        let isSoldOutSoon = false;
        let tags = res.data.tags;

        if (tags) {
          isSoldOutSoon = tags.includes('is_soon_sold_out');
        }

        pickData.view.goodsList = res.data.goods_list;
        pickData.view.isSoldOutSoon = isSoldOutSoon;

        // 默认显示第一种颜色的尺码
        pickData.view.sizeList = res.data.goods_list.length ? res.data.goods_list[0].size_list : [];

        let plusButtonEnable = false;
        let minusButtonEnable = false;

        // 根据库存设置该尺码是否可以选择
        let size_length = 0;

        if (pickData.view.sizeList) {
          size_length = pickData.view.sizeList.length;
        }

        pickData.view.sizeList && pickData.view.sizeList.map((item, index) => {
          item.enable = item.storage_number > 0;
          if (index === 0 && size_length === 1 && this.data.colorSelected) {
            // 当颜色被选中 并且只有一个size 时 才会自动 做选中尺码操作
            pickData.view.buyButtonEnable = item.enable;
            if (item.enable) {
              item.selected = true;
              plusButtonEnable = item.storage_number > 1;
              this.setData({
                selectedSKU: item.product_sku,
                storageNumber: item.storage_number
              });
            }
          }
        });

        pickData.view.plusButtonEnable = plusButtonEnable;
        pickData.view.minusButtonEnable = minusButtonEnable;
        pickData.view.image = formatImage.image(ImgUrls.length > 0 ? ImgUrls[0].image_url : '', 168, 232);
        pickData.view.price = res.data.format_market_price;
        pickData.view.goodPrice = res.data.format_sales_price;


        this.setData({
          pickerData: pickData
        });
        Picker.pickerShow(this);
      }
    }).catch(err => {
      this.showToast(err.code + err.message + '');
    });
  },
  removeGoodsListInEdit(e) {
    let info = e.detail;

    if (info.goods_list) {
      let list = info.goods_list || [];

      list.map(item => {
        this._removeGoodsList[item.indexKey] = info.selected === 'Y' ? item : false;
      });
    } else {
      this._removeGoodsList[info.indexKey] = info.selected === 'Y' ? info : false;
    }
  },
  mutilRemoveGoods() {
    let removeList = [];

    this._removeGoodsList = this._removeGoodsList || [];

    for (let i in this._removeGoodsList) {
      if (this._removeGoodsList.hasOwnProperty(i) && this._removeGoodsList[i]) {
        removeList.push(this._removeGoodsList[i]);
      }
    }

    if (!removeList.length) {
      return this.showToast('请勾选您要删除的商品');
    }

    this.showModal('是否删除选中的全部商品?').then(res => {
      if (res.confirm) {
        this.removeCartGoodsAsync(removeList);
      }
    });
  },
  removeGoods(e) {
    this.showModal('是否删除选中商品?').then(res => {
      if (res.confirm) {
        this.removeCartGoodsAsync([e.detail]);
      }
    });
  },
  cleanInvalidGoods() {
    this.showModal('是否确认清空所有失效商品?').then(res => {
      if (!res.confirm) {
        return;
      }

      let invalidGoods = this.data.invalidGoodsList;
      let invalidList = [];

      if (invalidGoods && invalidGoods.length) {
        invalidGoods.map(list => {
          invalidList.push.apply(invalidList, list);
        });
      }

      return this.removeCartGoodsAsync(invalidList);
    });
  },
  selectAllGoods() {
    let isSelectAll = this.data.isSelectAll;

    if (this.data.isEditing) {
      isSelectAll = !isSelectAll;

      this.setData({
        isSelectAll: isSelectAll,
        isEditSelectAll: isSelectAll ? 'Y' : 'N'
      });
      return;
    }

    this.editCart(this._allGoodsList, isSelectAll ? 'N' : 'Y').then(res => {
      if (!isSelectAll && res && res.hasLowStorage) {
        this.showToast('您全选的商品中存在库存不足商品，已帮您自动取消勾选成功');
      }
    });
  },
  paymentAction: function() {
    // 如果没有选中商品则不能进入结算页
    if (this.data.shoppingCartData.selected_goods_count <= 0) {
      return this.showToast('您还没有选择宝贝哦');
    }

    let matchGiftIds = this.data.matchGiftIds;

    if (matchGiftIds && matchGiftIds.length > 0) {
      return this.showModal('您还未选择赠品,是否去选择赠品?', {
        cancelText: '不要赠品',
        confirmText: '去选择',
        confirmColor: '#444444',
        cancelColor: '#444444',
      }).then(res => {
        if (res.confirm) {
          // 去选择赠品
          let ids = [];

          matchGiftIds.map(item => {
            ids.push(item);
          });

          router.go('cartGift', {
            promotion_id: ids.join(','),
            is_gift: 1,
            status: 10
          });
        }
      });
    }
    router.go('cartEnsure');
  },

  hidePicker(e) {
    if (e.target.id === 'picker-bg') {
      Picker.pickerHide(this);
    }
  },
  confirmChoose() {
    let sku = this.data.selectedSKU;

    if (!sku) {
      return this.showToast('请选择颜色或尺码');
    }

    let buyNumber = this.data.pickerData.view.buyNumber;
    let min_buy_number = this.data.pickerData.view.min_buy_number > 0 ? this.data.pickerData.view.min_buy_number : 1;

    if (buyNumber > 0 && buyNumber < min_buy_number && min_buy_number !== 1) {
      return this.showToast('最低' + min_buy_number + '件起');
    }

    let goods = this._cureditGoods;
    let goodsInfo = [{
      old_product_sku: goods.product_sku,
      new_product_sku: sku,
      buy_number: buyNumber,
      activity_id: goods.bundle_activity_id,
      batch_no: goods.batch_no,
      selected: 'Y',
    }];

    return _queryFromServiceAsync(cartModel.editCartGoods, {
      swap_data: JSON.stringify(goodsInfo)
    }).then(res => {
      if (res && res.code === 200) {
        this.editCart([{
          buy_number: buyNumber,
          goods_type: goods.goods_type,
          product_sku: sku,
          promotion_id: goods.promotion_id,
          selected: 'Y',
        }], 'Y');
        Picker.pickerHide(this);
        this.clearPickerData && this.clearPickerData();
      }
    });
  },
  ...Picker.pickerAction
});