src/renderer/src/hooks/useGetClassWork.js

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+import { nextTick, toRaw } from 'vue'
+import useUserStore from '@/store/modules/user'
+import { listEvaluation } from '@/api/subject'
+
+const userStore = useUserStore()
+const { edustage, edusubject } = userStore.user
+
+let evaluationList = []; // 教材版本list
+let subjectList = []; // 教材list
+//当前教材ID
+let curBookId = -1;
+
+/**
+ * 外部链接初始化获取 跳转web端的 unitId 专用，
+ * 暂时： 初始化作业设计专用，后期可能会取消
+ */
+export const useGetClassWork = async () => {
+  
+  const params = {
+    edusubject,
+    edustage,
+    // entpcourseedituserid: userId,
+    itemgroup: 'textbook',
+    orderby: 'orderidx asc',
+    pageSize: 10000
+  }
+
+  if(localStorage.getItem('evaluationList')){
+    evaluationList = JSON.parse(localStorage.getItem('evaluationList'))
+  }else{
+    const { rows } = await listEvaluation(params)
+    localStorage.setItem('evaluationList', JSON.stringify(rows))
+    evaluationList = rows
+  }
+
+  //获取教材版本
+  await getSubject()
+  //上册
+  /**
+   * 不区分上下册
+   * 2024/08/20调整
+   */
+  // volumeOne = data.filter(item => item.level == 1 && item.semester == '上册')
+  // volumeTwo = data.filter(item => item.level == 1 && item.semester == '下册')
+  getTreeData()
+}
+
+//获取教材
+const getSubject = async () => {
+  if(localStorage.getItem('subjectList')){
+    subjectList = JSON.parse(localStorage.getItem('subjectList'))
+  }else{
+    const { rows } = await listEvaluation({ itemkey: "version", edusubject, edustage,  pageSize: 10000,orderby: 'orderidx asc', })
+
+    // subjectList = rows.filter(item => item.edustage == edustage && item.edusubject == edusubject)
+    subjectList = rows
+    localStorage.setItem('subjectList', JSON.stringify(subjectList))
+  }
+
+  // 默认第一个
+  if(!subjectList.length) return
+  // curBookName = subjectList[0].itemtitle
+  curBookId = subjectList[0].id
+  // curBookImg = BaseUrl + subjectList[0].avartar
+  // curBookPath = subjectList[0].fileurl
+}
+
+
+const getTreeData = () => {
+  //数据过滤
+  let upData = transData(evaluationList)
+
+  if(upData.length){
+    // treeData = [...upData]
+  }else{
+    // treeData = []
+    return
+  }
+  nextTick(() => {
+    // defaultExpandedKeys = [treeData[0].id]
+    // let currentNodeObj = {...getLastLevelData(upData)[0]}
+    let currentNodeId = getLastLevelData(upData)[0].id
+    let currentNodeName = getLastLevelData(upData)[0].label
+    
+    let curNode = {
+      id: currentNodeId,
+      label: currentNodeName,
+      // itemtitle: currentNodeObj.itemtitle,
+      // edudegree: currentNodeObj.edudegree,
+      // edustage: currentNodeObj.edustage,
+      // edusubject: currentNodeObj.edusubject,
+    }
+    let parentNode = findParentByChildId(upData, currentNodeId)
+    curNode.parentNode = toRaw(parentNode)
+
+    let levelFirstId = '';
+    let levelSecondId = '';
+
+    if (curNode.parentNode) {
+      levelFirstId = curNode.parentNode.id
+    } else {
+      levelFirstId = curNode.id
+      levelSecondId = ''
+    }
+    let bookeId = curBookId
+    // 头部 教材分析、作业设计：打开外部链接需要当前章节ID
+    localStorage.setItem('unitId', JSON.stringify({ levelFirstId, levelSecondId, bookeId}))
+
+    // const data = {
+    //   textBook: {
+    //     curBookId: curBookId,
+    //     curBookName: curBookName,
+    //     curBookImg: curBookImg,
+    //     curBookPath: curBookPath
+    //   },
+    //   node: curNode
+    // }
+    // emit('changeBook', data)
+  })
+}
+
+const getLastLevelData = (tree) => {
+  let lastLevelData = [];
+  // 递归函数遍历树形结构
+  function traverseTree(nodes) {
+    nodes.forEach((node) => {
+      // 如果当前节点有子节点，继续遍历
+      if (node.children && node.children.length > 0) {
+        traverseTree(node.children);
+      } else {
+        // 如果没有子节点，说明是最后一层的节点
+        lastLevelData.push(node);
+      }
+    });
+  }
+
+  // 调用递归函数开始遍历
+  traverseTree(tree);
+
+  // 返回最后一层的数据
+  return lastLevelData;
+}
+
+// 根据id 拿到父节点数据
+const findParentByChildId = (treeData, targetNodeId) => {
+  // 递归查找函数
+  // 遍历树中的每个节点
+  for (let node of treeData) {
+    // 检查当前节点的子节点是否包含目标子节点 ID
+    if (node.children && node.children.some(child => child.id === targetNodeId)) {
+      // 如果当前节点的某个子节点的 ID 匹配目标子节点 ID，则当前节点即为父节点
+      return node;
+    }
+    // 如果当前节点没有匹配的子节点，则递归检查当前节点的子节点
+    if (node.children) {
+      let parentNode = findParentByChildId(node.children, targetNodeId);
+      if (parentNode) {
+        return parentNode;
+      }
+    }
+  }
+  // 如果未找到匹配的父节点，则返回 null 或者适当的默认值
+  return null;
+}
+
+
+const transData = (data) => {
+  let ary = []
+  data.forEach(item => {
+    let obj = {}
+    // 根据当前教材ID 过滤出对应的单元、章节
+    if (item.rootid == curBookId) {
+      if(item.level == 1){
+        obj.label = item.itemtitle
+        obj.id = item.id
+        obj.itemtitle = item.itemtitle
+        obj.edudegree = item.edudegree
+        obj.edustage = item.edustage
+        obj.edusubject = item.edusubject
+        let ary2 = []
+        evaluationList.forEach(el => {
+          let obj2 = {}
+          if (item.id == el.parentid) {
+            obj2 = {
+              label: el.itemtitle,
+              id: el.id,
+              itemtitle : el.itemtitle,
+              edudegree : el.edudegree,
+              edustage : el.edustage,
+              edusubject : el.edusubject,
+            }
+            ary2.push(obj2)
+          }
+          obj.children = ary2
+        })
+        ary.push(obj)
+      }
+    }
+  })
+  return ary
+}
+