import { wxRequestPost } from "@utils/promise-wx-api";

export default Behavior({
  data: {
    listIsMock: false,

    listUrl: "",
    listParams: {},
    list: {
      loading: false,
      page: 1,
      pageSize: 20,
      isNone: false,
      data: [],
    },

    moreListHint: "",
  },

  lifetimes: {},

  observers: {
    "list.**": function (field) {
      this.updateMoreListHint();
    },
  },

  methods: {
    updateMoreListHint() {
      const { list } = this.data;
      let moreListHint = "";
      if (list.loading) {
        moreListHint = "正在加载……";
      } else if (list.data.length == 0) {
        moreListHint = "暂无内容";
      } else if (!list.isNone) {
        moreListHint = "上拉查看更多";
      } else if (list.isNone) {
        moreListHint = "没有更多了";
      }
      return this.setData({ moreListHint });
    },

    // 重置评论列表
    resetList(clear = true) {
      let { list } = this.data;
      if (clear) {
        list.data = [];
      }
      list.page = 1;
      list.isNone = false;
      this.setData({ list });
    },

    // 处理列表数据
    cookListData(item, list) {
      return item;
    },

    // 获取列表
    async getList() {
      const { listUrl, listParams, list, listIsMock } = this.data;

      // 如果正在加载或没有更多，返回
      if (list.loading || list.isNone) return;

      list.loading = true;
      this.setData({ list });

      const {
        data: {
          data: { code, data },
        },
        msg,
      } = await wxRequestPost(
        listUrl,
        {
          ...listParams,
          pageNo: list.page,
          pageSize: list.pageSize,
        },
        {
          isMock: listIsMock,
          // isQuiet: true
        }
      );

      list.loading = false;

      if (msg === "success" && code === 0) {
        // console.log(Array.isArray(data))
        let tempData = data
        if (!Array.isArray(data)) { 
          // 非数组
          tempData = Array.from(data)

        }
        let newList = tempData.map((item) => {
          return this.cookListData(item, list.data);
        });
        if (list.page == 1) {
          list.data = newList;
        } else {
          list.data = [...list.data, ...newList];
        }
        list.page += 1;
        if (data.length < list.pageSize) {
          list.isNone = true;
        }
      }

      this.setData({
        list,
      });
    },
  },
});