<template>
  <div class="custom-select-wrapper" style="width: 1300px;overflow:auto;">
 
    <div class="department-label">
      <span
        v-for="(item, index) in allLabelList"
        :key="index"
        class="item"
        :class="{checked: item.checked}"
        @click="selectLabel(index)"
      >
        <span class="split" :class="{acitve: item.checked}"></span>
        {{item.name}}
      </span>
    </div>

    <!-- 课程分类 -->
    <div class="course-class">
      <div class="title">课程分类</div>
      <div class="item" @click="selectSubLabel(subLabelList[0], 1)">
        <span class="name" :class="{'active': subLabelList[0].checked}">全部</span>
      </div>
      <ul class="check-list">
        <!-- <el-checkbox-group v-model="checkList" @change="handleClassChange">
          <el-checkbox
            v-for="(item, index) in subLabelList.slice(1)"
            :label="item.id"
            :key="index"
            @change="selectSubLabel(item)"
          >{{item.name}}</el-checkbox>
        </el-checkbox-group> -->
        <li 
          class="sub-item"
          :class="{'active': item.checked}"
          v-for="(item, index) in subLabelList.slice(1)" 
          :key="index"
          @click="selectSubLabel(item, 2)"
        >
          <img v-show="item.checked" src="../../../assets/custom/icon/label-sel.png" alt />
          <img v-show="!item.checked" src="../../../assets/custom/icon/label-sel-no.png" alt />
          {{item.name}}
        </li>
      </ul>

        <!-- <el-checkbox-group v-model="checkList">
          <el-checkbox label="复选框 A"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
          <el-checkbox label="复选框 A"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
          <el-checkbox label="复选框 B"></el-checkbox>
          <el-checkbox label="复选框 C"></el-checkbox>
          <el-checkbox label="禁用"></el-checkbox>
          <el-checkbox label="选中且禁用"></el-checkbox>
        </el-checkbox-group>-->
      <div class="right"></div>
    </div>

    <!-- 课程等级 -->
    <div class="course-level">
      <span class="title">课程等级</span>
      <span
        class="item"
        v-for="(item, index) in courseLevel"
        :key="index"
        @click="selectLevel(index)"
      >
        <span class="name" :class="{active: item.checked}">{{item.name}}</span>
      </span>
    </div>

    <div class="button-wrapper">
      <el-button class="add-button" plain size="small" @click="resetCond">重 置</el-button>
      <el-button class="add-button" size="small" type="primary" @click="search">查 询</el-button>
    </div>
  </div>
</template>
<script>
import { mapGetters, mapActions } from 'vuex'
export default {
  data() {
    return {
      courseLevel: [
        { name: "全部", value: 0, checked: true },
        { name: "初级", value: 1, checked: false },
        { name: "中级", value: 2, checked: false },
        { name: "高级", value: 3, checked: false }
      ],
      checkList: [431, 441]
    };
  },
  props: {
    dataList: {
      type: Array,
      default: () => {
        return [
          {
            name: "全部",
            checked: true
          },
          {
            name: "内科",
            checked: false
          },
          {
            name: "神经科",
            checked: false
          },
          {
            name: "肿瘤科",
            checked: false
          },
          {
            name: "妇产科",
            checked: false
          },
          {
            name: "内科",
            checked: false
          },
          {
            name: "神经科",
            checked: false
          },
          {
            name: "肿瘤科",
            checked: false
          },
          {
            name: "妇产科",
            checked: false
          },
          {
            name: "内科",
            checked: false
          },
          {
            name: "神经科",
            checked: false
          },
          {
            name: "肿瘤科",
            checked: false
          },
          {
            name: "妇产科",
            checked: false
          }
        ];
      }
    }
  },
  computed: {
    ...mapGetters(['searchParam', 'allLabelList', 'subLabelList'])
  },
  components: {},
  methods: {
    ...mapActions(['setSubLabelList', 'setSearchParam']),
    selectLabel(index) {
      this.allLabelList.forEach(element => {
        element.checked = false;
      });
      this.allLabelList[index].checked = true;
      let subLabelList = this.allLabelList[index].subList;
      this.setSubLabelList(subLabelList);
    },
    // 选择二级
    selectSubLabel(item, type) {
      item.checked = !item.checked;
      console.log('selectSubLabel', item);
      // 如果是没有选中，则直接退出
      if(!item.checked) return;

      // 是全部按钮 第一个全部：parentid-0
      if(type == 1) {
        let labelArr = item.id.split('-'), labelType = labelArr[0], labelIndex = labelArr[1] - 0;
        labelArr = item.id.split('-');
        if(labelType == 'parentid') {
          // 将所有子项目清空
          this.allLabelList[0].subList.forEach( (item, index) => {
            if(index != 0) {  // 第一个不用
              item.checked = false;
            }
          })
          // 将其它所有全部置为不选中
          this.allLabelList.forEach( (item, index) => {
            index != 0 && (item.subList[0].checked = false);
          })
        } else {
          this.allLabelList[labelIndex + 1].subList.forEach( (item, index) => {
            if(index != 0) {  // 第一个不用
              item.checked = false;
            }
          })
          this.allLabelList[0].subList[0].checked = false;
        }
      // 各个小label
      } else if(type == 2) {
        let parentIndex = item.parentIndex;
        this.allLabelList[0].subList[0].checked = false;
        this.allLabelList[parentIndex + 1].subList[0].checked = false;
        // 
      }
      this.$forceUpdate();
    },
    selectLevel(index) {
      this.courseLevel.forEach(element => {
        element.checked = false;
      });
      this.courseLevel[index].checked = true;
    },
    handleClassChange() {
      // let checkedCount = value.length;
      // this.checkAll = checkedCount === this.cities.length;
      // this.isIndeterminate = checkedCount > 0 && checkedCount < this.cities.length;
    },
    resetCond() {
      this.allLabelList.forEach((item, index) => {
        item.checked = false;
        item.subList.forEach((sub, subIndex) => {
          sub.checked = false;
        });
      }); 
      this.setSubLabelList(this.allLabelList[0].subList);
      this.allLabelList[0].checked = true;
      this.selectLevel(0);
    },
    search() {
      let allSelectedLabel = [];
      this.allLabelList.forEach( item => {
        // 如果是分类中的全部被选中，则其下所有将添加到查询列表中
        if(item.subList[0].checked) {
          item.subList.forEach( (sub, index) => {
            if(index != 0) {
              allSelectedLabel.push(sub.id);
            }
          })
        // 否则只要被选中的
        } else {
          item.subList.forEach( (sub, index) => {
            if(index != 0 && sub.checked) {
              allSelectedLabel.push(sub.id);
            }
          })          
        }
      });
      this.searchParam.labelIdList = allSelectedLabel;
      // this.searchParam.grade = allSelectedLabel;
      this.courseLevel.forEach( item => {
        if(item.checked) {
          this.searchParam.grade = item.value;
        }
      })
      this.setSearchParam(this.searchParam);
      console.log(allSelectedLabel);
    }
  }
};
</script>
<style lang="less" scoped>
.custom-select-wrapper {
  user-select: none;
  .department-label {
    display: flex;
    flex-direction: row;
    height: 48px;
    line-height: 48px;
    border-bottom: 2px solid #449284;
    border-radius: 6px 6px 0px 0px;
    .item {
      cursor: pointer;
      position: relative;
      z-index: 1;
      display: inline-block;
      padding: 0 22px;
      font-size: 16px;
      color: #666666;
      &.checked {
        color: #fff;
        z-index: 3;
        background: #449284;
      }
      &:first-child {
        border-radius: 6px 0px 0px 0px;
      }
    }
    .split {
      position: absolute;
      top: 14px;
      left: 0px;
      z-index: 2;
      display: inline-block;
      height: 20px;
      width: 1px;
      background: #c7c8c9;
    }
    .item:nth-child(1) > .split,
    .item.checked + .item > .split,
    .split.acitve {
      display: none;
    }
  }
}
.course-level {
  display: flex;
  flex-direction: row;
  box-sizing: content-box;
  height: 56px;
  line-height: 56px;
  padding-left: 20px;
  // margin: 16px 0 16px 20px;
  border-bottom: 1px dotted #e4e7ed;
  .title {
    display: inline-block;
    padding: 0 10px;
    color: #999999;
  }
  .item {
    cursor: pointer;
    display: inline-block;
    margin: 0 5px;
    color: #333333;
    .name {
      height: 26px;
      line-height: 26px;
      display: inline-block;
      padding: 0px 10px;
      border-radius: 2px;
      &.active {
        color: #fff;
        background: #449284;
      }
    }
  }
}

.course-class {
  display: flex;
  flex-direction: row;
  box-sizing: content-box;
  padding: 10px 0;
  padding-left: 20px;
  // margin: 16px 0 16px 20px;
  border-bottom: 1px dashed #e4e7ed;
  .title {
    height: 56px;
    line-height: 56px;
    display: inline-block;
    padding: 0 10px;
    color: #999999;
  }
  .item {
    cursor: pointer;
    height: 56px;
    line-height: 56px;
    display: inline-block;
    margin: 0 5px;
    color: #333333;
    .name {
      height: 26px;
      line-height: 26px;
      display: inline-block;
      padding: 0px 10px;
      border-radius: 2px;
      margin-right: 16px;
      &.active {
        color: #fff;
        background: #449284;
      }
    }
  }
  .check-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 14px;
    margin-right: 80px;
    flex: 1;
    .sub-item {
      cursor: pointer;
      display: flex;
      flex-direction: row;
      align-items: center;
      height: 30px;
      line-height: 30px;
      font-size: 14px;
      color: #333333;
      margin-right: 30px;
      img {
        width: 16px;
        height: 16px;
        margin-right: 5px;
      }
      &.active {
        color: #449284;
      }
    }
  }
  .el-checkbox {
    height: 30px;
    line-height: 30px;
  }
}
.button-wrapper {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  margin-top: 20px;
  margin-right: 50px;
}
</style>