import { fetchGoodsList } from '../../../services/good/fetchGoodsList';
import Toast from 'tdesign-miniprogram/toast/index';

const initFilters = {
  overall: 1,
  sorts: '',
  layout: 0,
};

Page({
  data: {
    goodsList: [],
    layout: 0,
    sorts: '',
    overall: 1,
    show: false,
    minVal: '',
    maxVal: '',
    prices: [],
    filter: initFilters,
    hasLoaded: false,
    loadMoreStatus: 0,
    loading: true,
    categoryId: '',
    categoryName: '',
    keywords: '',
  },

  pageNum: 1,
  pageSize: 30,
  total: 0,

  handleFilterChange(e) {
    const { layout, overall, sorts } = e.detail;
    const { sorts: oldSorts, overall: oldOverall, layout: oldLayout } = this.data;
    
    console.log('[GoodsList] 筛选条件变化:', {
      oldState: {
        layout: oldLayout === 1 ? '列表' : '网格',
        overall: oldOverall === 1 ? '综合排序' : '其他排序',
        sorts: oldSorts || '默认'
      },
      newState: {
        layout: layout === 1 ? '列表' : '网格',
        overall: overall === 1 ? '综合排序' : '其他排序',
        sorts: sorts || '默认'
      },
      sortText: sorts === 'asc' ? '价格从低到高' : sorts === 'desc' ? '价格从高到低' : '默认排序',
      timestamp: new Date().toLocaleString(),
      action: '重置页码并重新加载商品列表'
    });
    
    this.pageNum = 1;
    this.setData({
      layout,
      sorts,
      overall,
      filter: {
        layout,
        overall,
        sorts,
      },
      loadMoreStatus: 0,
    });
    
    console.log('[GoodsList] 开始重新加载商品列表:', {
      pageNum: this.pageNum,
      timestamp: new Date().toLocaleString()
    });
    
    this.init(true);
  },

  generalQueryData(reset = false) {
    const { keywords, minVal, maxVal, sorts, overall } = this.data;
    const { pageNum, pageSize } = this;
    const params = {
      sort: overall === 1 ? 0 : 1, // 0 综合，1 价格
      pageNum: reset ? 1 : pageNum,
      pageSize: pageSize,
      keyword: keywords || '',
    };

    console.log('[GoodsList] 构建查询参数 - 基础参数:', {
      overall: overall === 1 ? '综合排序' : '其他排序',
      sorts: sorts || '默认',
      pageNum: params.pageNum,
      pageSize: params.pageSize,
      keyword: params.keyword,
      reset: reset,
      timestamp: new Date().toLocaleString()
    });

    // 添加分类ID参数
    if (this.categoryId) {
      params.category_id = this.categoryId;
      console.log('[GoodsList] 添加分类参数:', {
        categoryId: this.categoryId,
        categoryName: this.data.categoryName || '未知分类'
      });
    }

    // 设置排序参数
    if (sorts && sorts !== '') {
      params.sort = 1;
      params.sortType = sorts === 'desc' ? 1 : 0;
      console.log('[GoodsList] 设置价格排序参数:', {
        sorts: sorts,
        sortType: params.sortType,
        sortText: sorts === 'desc' ? '价格从高到低' : '价格从低到高'
      });
    }

    // 设置价格筛选参数（传输单位改为“分”，乘以100并取整）
    const min = Number(minVal);
    const max = Number(maxVal);
    if (!Number.isNaN(min) && min > 0) {
      params.minPrice = Math.round(min * 100);
      console.log('[GoodsList] 设置最低价格(分):', params.minPrice);
    }
    if (!Number.isNaN(max) && max > 0) {
      params.maxPrice = Math.round(max * 100);
      console.log('[GoodsList] 设置最高价格(分):', params.maxPrice);
    }

    console.log('[GoodsList] 最终查询参数:', {
      params: params,
      timestamp: new Date().toLocaleString()
    });

    if (reset) return params;
    return {
      ...params,
      pageNum: pageNum + 1,
    };
  },

  async init(reset = true) {
    const { loadMoreStatus, goodsList = [] } = this.data;
    const params = this.generalQueryData(reset);
    if (loadMoreStatus !== 0) return;
    this.setData({
      loadMoreStatus: 1,
      loading: true,
    });
    try {
      const result = await fetchGoodsList(params);
      console.log('[GoodsList] API调用结果:', {
        result: result,
        hasSpuList: !!result.spuList,
        spuListLength: result.spuList ? result.spuList.length : 0,
        totalCount: result.totalCount,
        timestamp: new Date().toLocaleString()
      });
      
      if (result && result.spuList) {
        const { spuList, totalCount = 0 } = result;
        if (totalCount === 0 && reset) {
          this.total = totalCount;
          this.setData({
            emptyInfo: {
              tip: '抱歉，未找到相关商品',
            },
            hasLoaded: true,
            loadMoreStatus: 0,
            loading: false,
            goodsList: [],
          });
          return;
        }

        const _goodsList = reset ? spuList : goodsList.concat(spuList);
        const _loadMoreStatus = _goodsList.length === totalCount ? 2 : 0;
        this.pageNum = params.pageNum || 1;
        this.total = totalCount;
        
        console.log('[GoodsList] 更新商品列表数据:', {
          reset: reset,
          oldGoodsListLength: goodsList.length,
          newGoodsListLength: _goodsList.length,
          totalCount: totalCount,
          loadMoreStatus: _loadMoreStatus,
          timestamp: new Date().toLocaleString()
        });
        
        this.setData({
          goodsList: _goodsList,
          loadMoreStatus: _loadMoreStatus,
        });
      } else {
        console.error('[GoodsList] API返回数据格式错误:', result);
        this.setData({
          loading: false,
        });
        wx.showToast({
          title: '查询失败，请稍候重试',
        });
      }
    } catch (error) {
      this.setData({
        loading: false,
      });
    }
    this.setData({
      hasLoaded: true,
      loading: false,
    });
  },

  onLoad(options) {
    // 接收分类参数
    if (options.categoryId) {
      this.categoryId = options.categoryId;
      this.setData({
        categoryId: options.categoryId,
        categoryName: decodeURIComponent(options.categoryName || ''),
      });
    }
    
    // 接收搜索关键词参数
    if (options.keyword) {
      this.setData({
        keywords: decodeURIComponent(options.keyword),
      });
    }
    
    this.init(true);
  },

  onReachBottom() {
    const { goodsList } = this.data;
    const { total = 0 } = this;
    if (goodsList.length === total) {
      this.setData({
        loadMoreStatus: 2,
      });
      return;
    }
    this.init(false);
  },

  handleAddCart() {
    Toast({
      context: this,
      selector: '#t-toast',
      message: '点击加购',
    });
  },

  tagClickHandle() {
    Toast({
      context: this,
      selector: '#t-toast',
      message: '点击标签',
    });
  },

  gotoGoodsDetail(e) {
    const { index } = e.detail;
    const { spuId } = this.data.goodsList[index];
    wx.navigateTo({
      url: `/pages/goods/details/index?spuId=${spuId}`,
    });
  },

  showFilterPopup() {
    this.setData({
      show: true,
    });
  },

  showFilterPopupClose() {
    this.setData({
      show: false,
    });
  },

  onMinValAction(e) {
    const { value } = e.detail;
    this.setData({ minVal: value });
  },

  onMaxValAction(e) {
    const { value } = e.detail;
    this.setData({ maxVal: value });
  },

  reset() {
    this.pageNum = 1;
    this.setData({
      minVal: '',
      maxVal: '',
      prices: [],
      goodsList: [],
      loadMoreStatus: 0,
    }, () => {
      this.init(true);
    });
  },

  confirm() {
    const { minVal, maxVal } = this.data;
    
    // 验证价格范围
    if (minVal && maxVal && parseFloat(minVal) > parseFloat(maxVal)) {
      Toast({
        context: this,
        selector: '#t-toast',
        message: '最低价不能大于最高价',
      });
      return;
    }
    
    // 构建价格筛选数组
    const prices = [];
    if (minVal || maxVal) {
      prices.push({
        min: minVal || 0,
        max: maxVal || '不限'
      });
    }
    
    // 应用价格筛选
    this.pageNum = 1;
    this.setData(
      {
        show: false,
        prices: prices,
        goodsList: [],
        loadMoreStatus: 0,
      },
      () => {
        this.init(true);
      },
    );
  },

  // 分享功能
  onShareAppMessage() {
    const { categoryName, keywords } = this.data;
    let title = '精选商品列表';
    let path = '/pages/goods/list/index';
    
    if (categoryName) {
      title = `${categoryName} - 精选商品`;
      path = `/pages/goods/list/index?categoryId=${this.categoryId}&categoryName=${encodeURIComponent(categoryName)}`;
    } else if (keywords) {
      title = `${keywords} - 搜索结果`;
      path = `/pages/goods/list/index?keywords=${encodeURIComponent(keywords)}`;
    }
    
    return {
      title: title,
      path: path
    };
  },

  // 分享到朋友圈
  onShareTimeline() {
    const { categoryName, keywords } = this.data;
    let title = '精选商品列表';
    
    if (categoryName) {
      title = `${categoryName} - 精选商品`;
    } else if (keywords) {
      title = `${keywords} - 搜索结果`;
    }
    
    return {
      title: title
    };
  }
});