import { loginStatus, post } from '@/utils/https';
import { cloneLite, getAuthInfo, getDataSet, toArray, toNumber } from '@/utils/util';

const defaultParams = { curr_page: 1, page_count: 20 };

Page({
  /**
   * 页面的初始数据
   */
  data: {
    params: cloneLite(defaultParams) as any,
    list: [] as any[],
    count: 0,
    sort: [{ label: '创建日期', value: 'create_date' }],
    depots: [] as any[],
    goodsClass: [] as any[],
  },
  handleLogin(e: any) {
    this.setData({ isLogin: e.detail });
    if (e.detail) {
      this.init();
    }
  },
  init() {
    this.setData({ authInfo: getAuthInfo() });
    this.getList();
    this.getData();
  },
  searchChange(e: any) {
    const key = getDataSet(e).key;
    this.data.params[key] = e.detail.value;
    this.setData({ params: this.data.params });
  },
  searchChange2(e: any) {
    const key = getDataSet(e).key;
    const val = `${e.detail.value || ''}`.trim();
    if (val) {
      this.data.params[key] = val;
    } else {
      delete this.data.params[key];
    }
    this.setData({ params: this.data.params });
  },
  onOptionChange(e: any) {
    const key = getDataSet(e).key;
    this.data.params[key] = e.detail.value;
    this.setData({ params: this.data.params });
  },
  datePickerConfirm(e: any) {
    const data = getDataSet(e);
    this.data.params[data.key] = e.detail.value;
    this.setData({ params: this.data.params });
  },
  searchOk() {
    this.getList(1);
  },
  searchReset() {
    this.data.params = cloneLite(defaultParams);
    this.getList(1);
  },
  onSort(e: any) {
    this.data.params.order = e.detail.value;
    this.setData({ params: this.data.params });
    this.getList(1);
  },
  paginationChange(e: any) {
    this.getList(e.detail.curr_page);
  },
  /**
   * 根据父级ID排序树形结构的一维数组
   */
  sortTreeArrayByParentId(
    arr: any[],
    rootParentId = 0,
    idKey = 'cate_id',
    parentIdKey = 'parent_cate_id',
  ) {
    // 1. 构建映射表，快速查找子节点
    const nodeMap = new Map();
    arr.forEach((node) => {
      nodeMap.set(node[idKey], { ...node, children: [] });
    });

    // 2. 构建树形结构
    const tree: any[] = [];
    arr.forEach((node) => {
      const currentNode = nodeMap.get(node[idKey]);
      const parentNode = nodeMap.get(node[parentIdKey]);

      if (parentNode) {
        // 有父节点，添加到父节点的children中
        parentNode.children.push(currentNode);
      } else if (node[parentIdKey] === rootParentId) {
        // 根节点，直接加入树形结构
        tree.push(currentNode);
      }
    });

    // 3. 递归扁平化树形结构，按层级输出
    function flattenTree(nodes: any[]) {
      const result: any[] = [];
      nodes.forEach((node) => {
        // 先加入当前节点
        result.push({ ...node, children: undefined }); // 移除children属性，还原原始结构
        // 递归处理子节点
        if (node.children && node.children.length > 0) {
          result.push(...flattenTree(node.children));
        }
      });
      return result;
    }

    return flattenTree(tree);
  },
  getData() {
    post('ErpDepot/list').then((res: any) => {
      const depots = toArray(res.data?.list).map((el) => {
        return { label: el.depot_name, value: el.depot_id };
      });
      this.setData({ depots });
    });
    post('GoodsCategory/list').then((res: any) => {
      // const goodsClass = toArray(res.data?.list).map((el) => {
      //   return { label: el.cate_name, value: el.cate_id };
      // });
      const sortedArray = this.sortTreeArrayByParentId(toArray(res.data?.list)).map((el) => {
        return { label: el.cate_name, value: el.cate_id };
      });

      this.setData({ goodsClass: sortedArray });
    });
  },
  getList(curr: number = 1) {
    this.data.params.curr_page = curr;
    this.setData({ params: this.data.params });
    const temp = cloneLite(this.data.params);
    if (!temp.depot_id) {
      delete temp.depot_id;
    }
    if (!temp.goods_class) {
      delete temp.goods_class;
    }
    post('ErpGoods/list', temp).then((res: any) => {
      const list = toArray(res.data);
      if (list.length == 0 && this.data.params.curr_page > 1) {
        this.getList(this.data.params.curr_page - 1);
      }
      this.setData({
        count: toNumber(res.count),
        list: list,
      });
    });
  },

  onDetail(e: any) {
    const data = getDataSet(e);
    const index = data.index;
    const item = this.data.list[index];
    wx.navigateTo({
      url: `/pages/other/goodsDetail/goodsDetail?goods_id=${
        item.goods_id
      }&title=${encodeURIComponent(item.goods_name)}`,
    });
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(_options) {
    this.setData({ loading: true });
    loginStatus()
      .then(() => {
        this.setData({ isLogin: true, loading: false });
        this.init();
      })
      .catch((err) => {
        this.setData({ isLogin: false, loading: false });
        console.log('调用登录状态请求失败', err);
      });
  },

  /**
   * 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() {},

  /**
   * 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() {},
});