// packageBookService/pages/bookServices/detail/buyResource/index.js
const app = getApp();
Page({
  /**
   * 页面的初始数据
   */
  data: {
    barHeight: "",
    navBarHeight: "",
    learn: [],
    openLearnids: [],
    bookId: "",
    loading: true,
    shoppingList: [],
    shoppingCartGetId: [],
    methodId: [],
    paymentPage: false,
    superior: false,
    checkAllState: true,
    productLinkPath: '',
    refCode: '',
    haider: false,
    naData: false,
    bookRefCode: []
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    this.getBookInfo(options.bookId);
    const systInfo = wx.getSystemInfoSync();
    const menu = wx.getMenuButtonBoundingClientRect(); // 胶囊信息
    const navBarHeight =
      (menu.top - systInfo.statusBarHeight) * 2 + menu.height; // 导航栏高度
    this.setData({
      barHeight: systInfo.statusBarHeight,
      navBarHeight: navBarHeight,
      bookId: options.bookId,
      productLinkPath: options.productLinkPath,
      refCode: options.refCode
    });
    this.getResourceClass();
    this.getShoppingCartProductGet();
  },

  /**
   * 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() {},
  changeCheckAll(e) {
    this.setData({
      checkAllState: e.detail.value,
    });
  },
  goBack() {
    wx.navigateBack();
  },

  // 获取所有子项数量
  getChildrenItem(data) {
    let num = 0

    function getNum(data) {
      for (let index = 0; index < data.length; index++) {
        const item = data[index];
        if (item.sysType == 'CmsItem') {
          num += 1
        } else if (item.sysType == 'CmsFolder') {
          if (item.children && item.children.length)
            getNum(item.children)
        }
      }
    }
    getNum(data)
    return num
  },

  // 给·目录添加子项数量
  changeResourceChildren(list) {
    const changeList = (list) => {
      for (let index = 0; index < list.length; index++) {
        const item = list[index];
        if (item.sysType == 'CmsFolder' && item.children && item.children.length) {
          item.childrenItem = this.getChildrenItem([item])
          changeList(item.children)
        } else if (item.sysType == 'CmsFolder' && item.children && !item.children.length) {
          item.childrenItem = 0
        } else if (item.sysType == 'CmsFolder' && !item.children) {
          item.childrenItem = 0
        }
      }
    }
    changeList(list)
    return list
  },

  // 扁平化数据转换tree
  getTreeList(rootList, pathLength, newArr, path) {
    for (const item of rootList) {
      if ((pathLength - item.productLinkPath.length >= 0 && pathLength - item.productLinkPath.length <= 3) && item.productLinkPath.includes(path)) {
        if (item.sysType == 'CmsItem') {
          if (item.selectType == 'webpage') {
            item.disabled = true
          } else {
            if (item.isDownload != 1) {
              item.disabled = true
            }
          }
          if (item.file && item.fileMap && item.fileMap[item.file]) {
            if (item.fileMap[item.file].protectType == 'Private') item.disabled = true
          }
        }
        // newArr.push(item)
        // 在插入过程中对数据进行排序  并且去除已经领取和购买的
        if (item.sysType == 'CmsFolder') {
          newArr = this.insertAndSortObjectsByProductLinkPath(newArr, item)
        } else if (item.sysType == 'CmsItem' && this.resourceIsBuy(item)) {
          newArr = this.insertAndSortObjectsByProductLinkPath(newArr, item)
        }
      }
    }
    //给数组里面再添加一个children的空数组
    for (const i of newArr) {
      i.children = []
      this.getTreeList(rootList, pathLength + 6, i.children, i.productLinkPath)
      if (i.children.length == 0) {
        delete i.children
      }
    }
    return newArr
  },

  // 去除树结构多余项
  ensureTreeConsistency(tree) {
    for (let index = 0; index < tree.length; index++) {
      const item = tree[index];
      if (item.children && item.children.length) {
        const isFloder = item.children.findIndex(citem => citem.sysType == 'CmsFolder')
        const isItem = item.children.findIndex(citem => citem.sysType == 'CmsItem')
        if (isFloder > -1 && isItem > -1) {
          item.children = item.children.filter(ditem => ditem.sysType == 'CmsItem')
        }
        this.ensureTreeConsistency(item.children)
      }
    }
    return tree
  },

  // 排序数组 按照productLinkPath
  insertAndSortObjectsByProductLinkPath(array, newObj) {
    // 查找新对象应该插入的位置  
    let insertIndex = array.findIndex(obj => Number(newObj.productLinkPath.substring(newObj.productLinkPath.length - 6, newObj.productLinkPath.length)) < Number(obj.productLinkPath.substring(obj.productLinkPath.length - 6, obj.productLinkPath.length)));

    // 如果没有找到合适的位置，则放在数组末尾  
    if (insertIndex === -1) {
      insertIndex = array.length;
    }
    // 插入新对象到数组  
    array.splice(insertIndex, 0, newObj);
    // 测试6 正式5
    // 对数组进行排序  
    array.sort((a, b) => {
      if (Number(a.productLinkPath.substring(a.productLinkPath.length - 5, a.productLinkPath.length)) < Number(b.productLinkPath.substring(b.productLinkPath.length - 5, b.productLinkPath.length))) {
        return -1;
      }
      if (Number(a.productLinkPath.substring(a.productLinkPath.length - 5, a.productLinkPath.length)) > Number(b.productLinkPath.substring(b.productLinkPath.length - 5, b.productLinkPath.length))) {
        return 1;
      }
      // a must be equal to b  
      return 0;
    });

    // 返回更新后的数组  
    return array;
  },

  // 遍历树结构转换为数组方法
  handleTreeData(array) {
    const flattenedArray = [];
    array.forEach((node) => {
      // 将当前节点添加到展开的数组中
      flattenedArray.push(node);
      // 递归处理子节点
      if (node.children && node.children.length > 0) {
        const childrenArray = this.handleTreeData(node.children);
        flattenedArray.push(...childrenArray);
      }
    });
    return flattenedArray.filter((item) => item.sysType == "CmsItem");
  },

  // 教学资源 云学习 获取
  getResourceDataList(type) {
    this.setData({
      loading: true,
      noResources: false,
    });
    let query = {
      path: '*',
      queryType: '*',
      productId: this.data.bookDetail.id,
      cmsPath: type.productLinkPath,
      cmsType: '*',
      itemFields: {
        SysType: 'CmsFolder',
        // 资源类型，试读文件，是否允许下载等参数
        learnSelectType: [],
        selectType: [],
        freeFile: [],
        file: [],
        protectedFile: [],
        resourcesClassification: [],
        isDownload: [],
        jsek_resourceBrief: [],
        jsek_link: [],
        jsek_questionBank: []
      },
      pading: {
        start: 0,
        size: 999
      },
    }
    app.MG.store.getProductDetail(query).then((res) => {
      if (!res.datas.cmsDatas[0].datas.length) {
        return this.setData({
          noResources: true,
          loading: false,
          haider: true,
        });
      }
      let list = []
      // 测试 6位// 正式 5位//  测试调用传20，内部7  正式调用传17 内部传6
      //教学资源 云学习
      if (
        type.refCode == "jsek_teachingResources" ||
        type.refCode == "jsek_cloudLearning"
      ) {
        res.datas.cmsDatas[0].datas.forEach((item) => {
          item.checked = false;
          if (item.sysType == 'CmsItem') {
            // 教学资源 类型名称赋值
            this.data.resourceClassList.forEach((type) => {
              if (type.value == item.resourcesClassification)
                item.resourceClass = type.name;
            });
            if (this.data.tabValue == "jsek_teachingResources") {} else if (this.data.tabValue == "jsek_cloudLearning") {
              item.isbuy = this.isShowNeedBuy(item);
              item.isShopCar = this.isShoppingCart(item);
            }
          }
        });
        // 显示 需要购买的和需要免费领取的
        // const arr = res.datas.cmsDatas[0].datas.filter(item => this.resourceIsBuy(item))
        // if (!arr.length) {
        //   return this.setData({
        //     loading: false,
        //     haider: true,
        //     noData: true
        //   })
        // }
        // debugger
        const num = query.cmsPath.length + 6
        this.getTreeList(res.datas.cmsDatas[0].datas, num, list, '\\')
        list = this.ensureTreeConsistency(list)
        list = this.changeResourceChildren(list)
        console.log('修改后云', list);
        let result = [];
        if (type.refCode == "jsek_teachingResources") {
          this.findChildIds(list, result);
          this.setData({
            teach: list,
            loading: false,
            openTeachids: result,
          });
        } else if (type.refCode == "jsek_cloudLearning") {
          let arr = this.handleTreeData(list).filter(
            (item) => item.saleMethod[0]
          );
          let freeIds = arr.filter((item) => {
            return item.saleMethod[0].Price == 0;
          });
          if (!freeIds.length)
            this.setData({
              isshowDrawBtn: false,
            });
          this.findChildIds(list, result);
          this.setData({
            learn: list,
            loading: false,
            openLearnids: result,
            haider: true,
          });
        }
      }
    })
  },

  //  获取教学资源  云学习  云测试
  getResourceData(type) {
    this.setData({
      loading: true,
      noResources: false,
    });
    let query = {
      path: "*",
      queryType: "*",
      productId: this.data.bookId,
      cmsPath: type.productLinkPath,
      itemFields: {
        SysType: "CmsFolder",
        // 资源类型，试读文件，是否允许下载等参数
        selectType: [],
        freeFile: [],
        file: [],
        resourcesClassification: [],
        isDownload: [],
        jsek_resourceBrief: [],
        jsek_link: [],
        jsek_questionBank: [],
      },
      pading: {
        start: 0,
        size: 999,
      },
    };
    app.MG.store
      .getProductDetail(query)
      .then(async (res) => {
        if (!res.datas.cmsDatas[0].datas.length) {
          return this.setData({
            noResources: true,
            loading: false,
            haider: true,
          });
        }
        //教学资源 云学习
        if (
          type.refCode == "jsek_teachingResources" ||
          type.refCode == "jsek_cloudLearning"
        ) {
          if (res.datas.cmsDatas[0].datas.length > 0) {
            res.datas.cmsDatas[0].datas.forEach((item) => {
              (item.checked = false), (item.checkAll = true);
            });
            const list = await this.getAllResource(res.datas.cmsDatas[0].datas);
            if (type.refCode == "jsek_teachingResources") {
              this.setData({
                teach: list,
                loading: false,
                haider: true
              });
              this.findChildIds(this.data.teach, (this.data.openTeachids = []));
            } else if (type.refCode == "jsek_cloudLearning") {
              const result = [];
              res.datas.cmsDatas[0].datas.forEach((item) => {
                item.checked = false;
              });
              this.findChildIds(list, result);
              this.setData({
                learn: list,
                loading: false,
                openLearnids: result,
                haider: true
              });
            }
            console.log(list, '云學習');
          } else {
            // 无数据
          }
        } else if (type.refCode == "jsek_questionBank") {
          // const list = await this.getAllResource(res.datas.cmsDatas[0].datas)
          this.setData({
            test: res.datas.cmsDatas[0].datas,
            loading: false,
            haider: true
          });
        } else {
          console.log("其他");
        }
      })
      .catch((e) => {
        console.log(e);
      });
  },
  // 获取tag下所有资源
  async getAllResource(data) {
    if (!data.length) return false;
    for (let i = 0; i < data.length; i++) {
      let item = data[i];
      if (item.sysType == "CmsFolder" && item.childrenCount > 0) {
        item.children = [];
        item.children = await this.getFolderItem(item.productLinkPath);
        await this.getAllResource(item.children);
      }
    }
    return data;
  },
  // 获取资源接口
  async getFolderItem(path) {
    let query = {
      path: "*",
      queryType: "*",
      productId: this.data.bookId,
      cmsPath: path,
      itemFields: {
        SysType: "CmsFolder",
        // 资源类型，试读文件，是否允许下载等参数
        selectType: [],
        freeFile: [],
        file: [],
        protectedFile: [],
        resourcesClassification: [],
        isDownload: [],
        jsek_resourceBrief: [],
        jsek_link: [],
        accessType: [],
        learnSelectType: [],
      },
      pading: {
        start: 0,
        size: 999,
      },
    };
    const data = await app.MG.store.getProductDetail(query);
    data.datas.cmsDatas[0].datas.forEach((item) => {
      this.data.resourceClassList.forEach((type) => {
        if (type.value == item.resourcesClassification)
          item.resourceClass = type.name;
      });
      // 网页 不能下载 私有文件
      if (item.sysType == "CmsItem") {
        if (item.selectType == "webpage") {
          item.disabled = true;
        } else {
          if (item.isDownload != 1) {
            item.disabled = true;
          }
        }
        if (item.file) {
          if (item.fileMap[item.file].protectType == "Private")
            item.disabled = true;
        }
      }
    });
    data.datas.cmsDatas[0].datas.forEach((item) => {
      item.checked = false;
      item.isbuy = this.isShowNeedBuy(item);
      item.isShopCar = this.isShoppingCart(item);
    });
    return data.datas.cmsDatas[0].datas;
  },
  async getBookInfo(id) {
    this.setData({
      "mockData'.id": 0,
      "mockData.price": 0,
      "mockData.count": 0,
    });
    const query = {
      path: "*",
      queryType: "*",
      productId: id,
      favoriteTypes: "FavoriteBookCity",
      itemFields: {
        "SysType=": "CmsFolder",
      },
      coverSize: {
        height: 300,
      },
      fields: {
        seriesName: [],
        author: [],
        isbn: [],
        publicationDate: [],
        bookClassification: [],
        paperPrice: [],
        JDLink: [],
        tmallLink: [],
        dangdangLink: [],
        weidianLink: [],
        content: [],
        authorIntroduction: [],
        isApplyBook: [],
        isSell: [],
        pdf: [],
        protectedEpub: [],
        probationPage: [], //pdf试读页数
        freeEpubPage: [], //epub试读百分比
      },
    };
    await app.MG.store.getProductDetail(query).then(async (res) => {
      this.setData({
        bookDetail: res.datas,
        buyIdList: res.datas.purchasedSaleMethodIdList,
      });
      // this.getResourceData({
      //   productLinkPath: this.data.productLinkPath,
      //   refCode: this.data.refCode,
      // });
      // this.getResourceCode(
      //   res.datas.id,
      //   res.datas.rootCmsItemId
      // )
      this.getResourceDataList({
        productLinkPath: this.data.productLinkPath,
        refCode: this.data.refCode,
      })
    });

  },
  getResourceCode(bookId, cmsId) {
    let query = {
      path: '*',
      queryType: '*',
      productId: bookId,
      cmsPath: cmsId,
      itemFields: {
        SysType: 'Cms'
      },
      pading: {
        start: 99,
        size: 0
      }
    }
    app.MG.store.getProductDetail(query).then(res => {
      console.log('图书资源', res.datas.cmsDatas[0].datas);
    })
  },
  // 获取已购买商品
  getShoppingCartProductGet() {
    let query = {
      start: 0,
      size: 999,
      filterList: [],
      searchList: [],
    };
    app.MG.store.getShoppingCartProductList(query).then((res) => {
      const list = [];
      res.datas.forEach((item) => {
        list.push(item.saleMethod.id);
      });
      this.setData({
        shoppingList: res.datas,
        shoppingCartGetId: list,
      });
    });
  },
  // 判断资源是否购买
  resourceIsBuy(data) {
    if (data.saleMethod && data.saleMethod.length) {
      const isSHow = this.data.buyIdList.some(
        (item) => item == data.saleMethod[0].Id
      );
      return !isSHow;
    } else {
      return false;
    }
  },

  isShowNeedBuy(data) {
    if (data.saleMethod && data.saleMethod.length) {
      const isSHow = this.data.buyIdList.some(
        (item) => item == data.saleMethod[0].Id
      );
      if (isSHow) {
        return false;
      } else {
        return data.saleMethod[0].Price > 0 ? true : false;
      }
      return !isSHow;
    } else {
      return false;
    }
  },
  // 判断资源加入购物车按钮是否显示
  isShoppingCart(data) {
    if (data.saleMethod && data.saleMethod.length) {
      if (data.saleMethod[0].Price <= 0) return false;
      // 再判断是否购买
      const isBuy = this.data.buyIdList.some(
        (item) => item == data.saleMethod[0].Id
      );
      if (isBuy) {
        // 购买了
        return false;
      } else {
        // 判断是否加入购物车
        const isSHow = this.data.shoppingCartGetId.some(
          (item) => item == data.saleMethod[0].Id
        );
        return !isSHow;
      }
    } else {
      return false;
    }
  },
  // 获取展开项
  findChildIds(data, result) {
    let index = 0;
    for (let i = 0; i < data.length; i++) {
      if (index < 3) {
        const item = data[i];
        if (item.children && item.children.length > 0) {
          result.push(item.id);
          for (let j = 0; j < item.children.length; j++) {
            if (index < 3) {
              const childrenItme = item.children[j];
              if (item.children && item.children.length > 0) {
                result.push(childrenItme.id);
                index += 1;
              }
            } else {
              break;
            }
          }
        } else if (item.children && item.children.length > 0) {
          result.push(item.id);
          index += 1;
        }
      } else {
        break;
      }
    }
  },
  // 获取资源所属分类
  getResourceClass() {
    let query = {
      refCodes: ["resourcesClassification"],
    };
    app.MG.store.getProductTypeField(query).then((res) => {
      this.setData({
        resourceClassList: JSON.parse(res[0].config).option,
      });

    });
  },
  checkAll() {
    const child = this.selectComponent("#tree");
    child.checkAll();
  },
  //购买按钮
  batchPurchase() {
    if (!this.data.learn.length) {
      return wx.showToast({
        icon: "error",
        title: '暂无数据',
      })
    }
    let saleMethodIds = [];
    let requests = [];
    let item = [];
    let selectAllId = [];
    const child = this.selectComponent("#tree");
    item = child.data.superiorPurchaseSaleMethodId;
    const sonItem = child.data.sonPurchaseSaleMethodId;
    let selectAll = child.data.selectAll;
    if (selectAll) {
      selectAll.forEach((item) => {
        if (item.saleMethod != 0) {
          selectAllId.push(item.saleMethod[0].Id);
        }
      });
      app.MG.store
        .initOrder({
          requests: selectAllId.map((id) => ({
            saleMethodId: id,
            count: 1,
          })),
        })
        .then((res) => {
          if (res) {
            wx.navigateTo({
              url: "/pages/cart/paymentPage/index?orderNumber=" + res.orderNumber,
            });
            selectAllId = [];
            child.setData({
              selectAll: [],
            });
          }
        });
    }
    if (item) {
      // 拿到id
      item.forEach((items) => {
        if (items.saleMethod != 0) {
          saleMethodIds.push(items.saleMethod[0].Id);
        }
      });
      app.MG.store
        .initOrder({
          requests: saleMethodIds.map((id) => ({
            saleMethodId: id,
            count: 1,
          })),
        })
        .then((res) => {
          if (res) {
            wx.navigateTo({
              url: "/pages/cart/paymentPage/index?orderNumber=" + res.orderNumber,
            });

            child.setData({
              superiorPurchaseSaleMethodId: [], // 使用setData方法清空sonPurchaseSaleMethodId数据
            });
          }
        });
    }
    if (item.length == 0 && sonItem) {
      app.MG.store
        .initOrder({
          requests: sonItem.map((id) => ({
            saleMethodId: id,
            count: 1,
          })),
        })
        .then((res) => {
          if (res) {
            wx.navigateTo({
              url: "/pages/cart/paymentPage/index?orderNumber=" + res.orderNumber,
            });
            this.setData({
              paymentPage: true,
            });
            child.setData({
              sonPurchaseSaleMethodId: [], // 使用setData方法清空sonPurchaseSaleMethodId数据
            });
          }
        });
    }
  },

  // 章节勾选方法
  findAndUpdateItemsByIds(tree, ids, state) {
    function findAndUpdate(node) {
      if (ids.includes(node.id)) {
        // console.log(node, 'node');
        node.checked = state; // 将目标项的 check 属性设置为 true
      }
      if (node.children && node.children.length > 0) {
        for (let child of node.children) {
          findAndUpdate(child); // 递归处理子节点
        }
      }
    }
    for (let node of tree) {
      findAndUpdate(node); // 对每个顶层节点执行查找和更新操作
    }
    // console.log(tree, 'tree345');
    return tree; // 返回修改后的完整数组
  },
  // 单个勾选方法
  checkResoucrceInfo(tree, id) {
    function findAndUpdate(node) {
      if (node.sysType == "CmsFolder" && node.children.length > 0) {
        for (let index = 0; index < node.children.length; index++) {
          const element = node.children[index];
          findAndUpdate(element);
        }
      } else if (id == node.id && node.sysType == "CmsItem") {
        node.checked = !node.checked; // 将目标项的 check 属性设置为 true
      }
    }
    for (let node of tree) {
      findAndUpdate(node); // 对每个顶层节点执行查找和更新操作
    }
    return tree; // 返回修改后的完整数组
  },
  // 章节勾选事件
  changeListChecked(e) {
    const ids = e.detail.ids
    const state = e.detail.flag
    const updated = this.findAndUpdateItemsByIds(this.data.learn, ids, state)
    this.setData({
      learn: updated
    })
  },
  // 单个勾选事件
  changeResourceChecked(e) {
    const id = e.detail.id
    const updated = this.checkResoucrceInfo(this.data.learn, id)
    this.setData({
      learn: updated
    })
  }
});