<template>
  <div class="topButton">
    <a-space>
      <a-button @click="save" :loading="saveLoading">保存</a-button>
      <a-button @click="reload">刷新</a-button>
      <a-button type="primary" @click="addOne()" class="addBtn" title="新增一级"><Icon icon="ant-design:plus-outlined"/>新增标题</a-button>
    </a-space>
  </div>

  <div class="maxDiv">
    <a-empty v-if="!dataSource || !dataSource.length"/>
    <draggable v-bind="draggableBind" v-model="dataSource">
      <template #item="{ element: one }">
        <div class="box">
          <!-- 下一层 -->
          <a-card>
            <a-collapse ghost expandIconPosition="right">
              <a-collapse-panel :key="one._id">
                <template #header>
                  <div class="topDiv">
                    <div>{{ one.sort }}：</div>
                    <div class="inputd"><a-input :value="one.title" @change="changeInput($event, one, 'title')" @click="stop" class="ainput"/></div>
                  </div>
                </template>
                <template #extra>
                  <a-space>
                    <div><a-button type="primary" @click="addTwo($event, one)" class="addBtn" title="新增二级"><Icon icon="ant-design:plus-outlined"/>新增章节</a-button></div>
                    <div><a-button type="primary" danger @click="delOne($event, one)" class="addBtn" title="删除此项及以下"><Icon icon="ant-design:delete"/>删除</a-button></div>
                  </a-space>
                </template>
                <draggable v-bind="draggableBind" v-model="one.childrenList">
                  <template #item="{ element: two }">
                    <div class="box">
                      <!-- 下一层 -->
                      <a-card>
                        <a-collapse ghost expandIconPosition="right">
                          <a-collapse-panel :key="two._id">
                            <template #header>
                              <div class="twoTopDiv">
                                <div class="topDiv">
                                  <div>{{ one.sort }}.{{ two.sort }}：</div>
                                  <div class="twoInputd"><a-input :value="two.title" @change="changeInput($event, two, 'title')" @click="stop" class="ainput"/></div>
                                </div>
                              </div>
                            </template>
                            <template #extra>
                              <div><a-button type="primary" danger @click="delTwo($event, one, two)" class="addBtn" title="删除此项及以下"><Icon icon="ant-design:delete"/>删除</a-button></div>
                            </template>
                            <div style="padding-top: 1rem;">
                              <a-space>
                                <div><a-button type="primary" @click="addThree($event, two, 'video')" class="addBtn"><Icon icon="ant-design:plus-outlined"/>视频</a-button></div>
                                <div><a-button type="primary" @click="addThree($event, two, 'document')" class="addBtn"><Icon icon="ant-design:plus-outlined"/>文档</a-button></div>
                                <div><a-button type="primary" @click="addThree($event, two, 'richText')" class="addBtn"><Icon icon="ant-design:plus-outlined"/>富文本</a-button></div>
                                <!-- <div><a-button type="primary" @click="addThree($event, two, 'classroomTest')" class="addBtn"><Icon icon="ant-design:plus-outlined"/>随堂测试</a-button></div>
                                <div><a-button type="primary" @click="addThree($event, two, 'discuss')" class="addBtn"><Icon icon="ant-design:plus-outlined"/>讨论</a-button></div> -->
                              </a-space>
                            </div>
                            <draggable v-bind="draggableBind" v-model="two.childrenList">
                              <template #item="{ element: three }">
                                <div class="box">
                                  <a-card>
                                    <template #title>
                                      {{ one.sort }}.{{ two.sort }}.{{ three.sort }}
                                    </template>
                                    <template #extra>
                                      <div><a-button type="primary" danger @click="delThree($event, two, three)" class="addBtn"><Icon icon="ant-design:delete"/>删除</a-button></div>
                                    </template>
                                    <div class="topDiv">
                                      <template v-if="three.type == 'video'">
                                        <!-- <j-upload v-model:value="three.filePath" maxCount="1" suffixList="avi,mov,mkv,mpeg,asf,3gp,wmv,mp4,flv,rmvb"/> video/mp4,video/webm,video/ogv-->
                                        <j-upload v-model:value="three.filePath" maxCount="1" text="上传视频" accept=".mp4,.webm,.ogv" :forceAcceptVerify="true"/>
                                      </template>
                                      <template v-if="three.type == 'document'">
                                        <j-upload v-model:value="three.filePath" maxCount="1"/>
                                      </template>
                                      <template v-if="three.type == 'richText'">
                                        <j-editor v-if="isNotMove" v-model:value="three.richText"/>
                                        <div v-else style="height: 400px;"></div>
                                      </template>
                                      <!-- <template v-if="three.type == 'classroomTest'">
                                        随堂测试
                                      </template>
                                      <template v-if="three.type == 'discuss'">
                                        讨论
                                      </template> -->
                                    </div>
                                  </a-card>
                                </div>
                              </template>
                            </draggable>
                          </a-collapse-panel>
                        </a-collapse>
                      </a-card>
                    </div>
                  </template>
                </draggable>
              </a-collapse-panel>
            </a-collapse>
          </a-card>
        </div>
      </template>
      <!-- <template #footer> -->
        <!-- <a-button @click="sureChange" type="primary" style="margin-top: 100px">确定</a-button> -->
      <!-- </template> -->
    </draggable>
  </div>

</template>

<script lang="ts" name="jiaoXueDanYuanNeiRongIndex" setup>
  import { ref, reactive, onMounted, unref, nextTick } from 'vue';
  import { Input, Popover, Pagination, Empty } from 'ant-design-vue';
  import { defHttp } from '/@/utils/http/axios';
  import { useMessage } from "/@/hooks/web/useMessage";
  import { useRouter } from 'vue-router';
  import { randomString, simpleDebounce } from '/@/utils/common/compUtils'

  import draggable from 'vuedraggable';
  import JUpload from '/@/components/Form/src/jeecg/components/JUpload/JUpload.vue';
  import JEditor from '/@/components/Form/src/jeecg/components/JEditor.vue';

  //当前路由信息
  const { currentRoute } = useRouter();
  const { query } = unref(currentRoute);
  const { rwbh, xqxn, type } = query;//获取传递参数

  const { createConfirm, createMessage } = useMessage();
  const queryParam = ref<any>({});
  const dataSource = ref<any>([]);

  const isNotMove = ref<boolean>(true);
  const saveLoading = ref<boolean>(false);

  //公共的拖动排序组件绑定数据
  const draggableBind = ref<Object>({
    //唯一键
    itemKey: '_id',
    // onStart: moveDraggable,
    // onAdd: onAddFn,
    // onRemove: onRemoveFn,
    // onUpdate: onUpdateFn,
    //有效移动后触发
    onEnd: endDraggable,
    //鼠标按下触发
    // onChoose: simpleDebounce(chooseDraggable, 500),
    // onChoose: chooseDraggable,
    //鼠标松开后触发
    // onUnchoose: unchooseDraggable,
    // onSort: onSortFn,
    // onFilter: onFilterFn,
    // onClone: onCloneFn,
    // onMove: onMoveFn,
  });

  enum Api {
  list = '/teachingunitcontent/kcTeachingUnitContentOne/allList',
  edit = '/teachingunitcontent/kcTeachingUnitContentOne/edit',
}

  /**
   * 列表接口
   * @param params
   */
  const listAll = (params) => defHttp.get({ url: Api.list, params });
  const editAll = (params) => defHttp.post({ url: Api.edit, params }, { isTransformResponse: true });


  function reload() {
    loadData();
  }

  function loadData() {
    dataSource.value = [];
    let params = {
      rwbh,
      xqxn,
    }
    listAll(params).then(res => {
      dataRecursion(res, (x) => x._id = x.id);
      dataSource.value = res;
    });
  }

  //递归执行方法
  function dataRecursion(list, fn){
    let _list = list;
    _list.forEach((x,i) => {
      fn(x,i);
      if(x.childrenList && x.childrenList.length){
        dataRecursion(x.childrenList, fn);
      }
    })
  }

  //刷新数据的排序
  function refreshDataSort(){
    dataRecursion(dataSource.value, (x, i) => x.sort = i+1);
  }

  //创建新的节点
  function createNoneData(){
    let data = {
      //临时ID，兼容新增和修改
      _id: randomString(32),
      title: null,
      sort: 0,
      childrenList: [],
    }
    return data;
  }

  function stop(e) {
    e?.stopPropagation();
  }

  function changeInput(e, pdata, key) {
    let { target } = e;
    let { value } = target;
    pdata[key] = value;
  }

  function addOne(){
    dataSource.value.push(createNoneData());
    nextTick(() => {
      refreshDataSort();
    })
  }

  function delOne(e, one){
    stop(e);
    let index = dataSource.value.findIndex(x => x == one);
    if(index == -1) return;
    dataSource.value.splice(index, 1);
    nextTick(() => {
      refreshDataSort();
    })
  }

  // function insertOne(index){
  //   dataSource.value.splice(index,0, createNoneData());
  // }

  function addTwo(e, one){
    stop(e);
    if(one.childrenList){
      one.childrenList.push(createNoneData());
    }else{
      one.childrenList = [ createNoneData() ];
    }
    nextTick(() => {
      refreshDataSort();
    })
  }

  function delTwo(e, one, two){
    stop(e);
    let index = one.childrenList.findIndex(x => x == two);
    if(index == -1) return;
    one.childrenList.splice(index, 1);
    nextTick(() => {
      refreshDataSort();
    })
  }

  // function insertTwo(one, index){
  //   one.childrenList.splice(index,0, createNoneData());
  // }

  function addThree(e, two, type){
    stop(e);
    let data = createNoneData();
    delete data.title;
    data.type = type;
    data.richText = null;
    data.filePath = null;
    if(two.childrenList){
      two.childrenList.push(data);
    }else{
      two.childrenList = [ data ];
    }
    nextTick(() => {
      refreshDataSort();
    })
  }

  function delThree(e, two, three){
    stop(e);
    let index = two.childrenList.findIndex(x => x == three);
    if(index == -1) return;
    two.childrenList.splice(index, 1);
    nextTick(() => {
      refreshDataSort();
    })
  }


  //移动结束时触发，如果未移动则不触发，刷新排序,
  function endDraggable(){
    //移动后如果有富文本编辑器则会失效，需要此法重置一下
    isNotMove.value = false;
    nextTick(() => {
      isNotMove.value = true;
      refreshDataSort();
    })
  }

  //按下鼠标按键后触发
  // function chooseDraggable(){
  //   // isNotMove.value = false;
  // }

  //松开鼠标按键后触发
  // function unchooseDraggable(){
  //   // isNotMove.value = true;
  // }

  // function onAddFn() { console.log('onAddFn'); }
  // function onRemoveFn() { console.log('onRemoveFn'); }
  // function onUpdateFn() { console.log('onUpdateFn'); }
  // function onChooseFn() { console.log('onChooseFn'); }
  // function onUnchooseFn() { console.log('onUnchooseFn'); }
  // function onSortFn() { console.log('onSortFn'); }
  // function onFilterFn() { console.log('onFilterFn'); }
  // function onCloneFn() { console.log('onCloneFn'); }
  // function onMoveFn() { console.log('onMoveFn'); }

  // //移动时触发，关闭富文本编辑器
  // function moveDraggable() {
  //   console.log('move');
  //   isNotMove.value = false;
  // }

  async function save(){
    saveLoading.value = true;
    console.log(unref(dataSource));
    let saveData = {
      rwbh,
      xqxn,
      teachingUnitContentOneList: unref(dataSource),
    }
    if(!saveData.rwbh || !saveData.xqxn){
      createMessage.error('无法保存！');
      saveLoading.value = false;
      return;
    }else if(!saveData.teachingUnitContentOneList || !saveData.teachingUnitContentOneList.length){
      createMessage.warn('请添加数据！');
      saveLoading.value = false;
      return;
    }
    await editAll(saveData);
    saveLoading.value = false;
  }

  loadData();
</script>

<style lang="less" scoped>
.box {
  margin: .5rem 0 0 0;
  .itemTop {
    width: 100%;
  }
}

.topButton {
  padding-top: 1rem;
}

.ainput {
  width: 100%;
}

.inputd {
  width: calc(100% - 35px);
}
.topDiv {
  width: 100%;
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: center;
}
.twoInputd {
  width: calc(100% - 45px);
}
.twoTopDiv {
  width: 100%;
}

:deep(.maxDiv) .ant-collapse-header{
  align-items: center;
}
</style>
