<template>
  <div class="custom-over">
    <div class="custom-select-wrapper">
      <!-- 学科分类 -->
      <div class="subject-level">
        <span class="title">学科分类</span>
        <span
          v-for="(item, index) in allLabelList"
          :key="index"
          class="item"
          :class="{active: item.checked}"
          @click="selectLabel(index)"
        >        
          <span class="name" :class="{active: item.checked}">{{item.name}}</span>
        </span>
      </div>
      <!-- 课程分类 -->
      <div class="course-class">
        <div class="title">课程分类</div>
        <div v-if="subLabelList.length" class="item" @click="selectSubLabel(subLabelList[0], 1)">
          <span class="name" :class="{'active': subLabelList[0].checked}">全部</span>
        </div>
        <ul class="check-list">
          <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>
        <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>
  </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']),

    // 选择一级
    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);
      // 如果被选中
      if(item.checked) {
        // 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') {
            // 将所有子项目选中
            this.allLabelList[0].subList.forEach( (item, index) => {
              if(index != 0) {  // 第一个不用
                item.checked = true;
              }
            })
            // 将其它所有全部置为选中
            this.allLabelList.forEach( (item, index) => {
              index != 0 && (item.subList[0].checked = true);
            })
          } else {
            this.allLabelList[labelIndex + 1].subList.forEach( (item, index) => {
              if(index != 0) {  // 第一个不用
                item.checked = true;
              }
            })
          }
        }
      // 末被选中
      } else {
        // 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') {
            // 将所有子项目选中
            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;
              }
            })
          }
        }
      }

      // 无论哪种操作，都要重置各个“全部”按钮
      this.allLabelList.forEach( (parent, index) => {
        let needhecked = true, subList = parent.subList;
        for(let i = 1; i < subList.length; i ++) {
          if(!subList[i].checked) {
            needhecked = false;
            break;
          }
        }
        this.allLabelList[index].subList[0].checked = needhecked;
      })
      this.$forceUpdate();
    },

    // 选中等级
    selectLevel(index) {
      this.courseLevel.forEach(element => {
        element.checked = false;
      });
      this.courseLevel[index].checked = true;
    },

    // 重置按钮
    resetCond() {
      this.allLabelList.forEach((item, index) => {
        item.checked = false;
        item.subList.forEach((sub, subIndex) => {
          sub.checked = true;
        });
      });
      this.setSubLabelList(this.allLabelList[0].subList);
      this.allLabelList[0].checked = true;
      this.selectLevel(0);
    },
    search() {
      let allSelectedLabel = [];
      this.allLabelList[0].subList.forEach( (item, index) => {
        index && item.checked && allSelectedLabel.push(item.id);
      })
      this.searchParam.labelIdList = allSelectedLabel;
      this.courseLevel.forEach( item => {
        if(item.checked) {
          this.searchParam.grade = item.value;
        }
      })
      this.searchParam.pageNo = 1;
      this.setSearchParam(this.searchParam);
      console.log(allSelectedLabel);
    }
  }
};
</script>
<style lang="less" scoped>
.custom-select-wrapper {
  // width: 1090px;
  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;
      // &::after {
      //   position: absolute;
      //   content: "";
      //   top: 14px;
      //   left: 0px;
      //   height: 20px;
      //   border-left: 1px solid #c7c8c9;
      // }
      &.checked {
        color: #fff;
        z-index: 3;
        background: #449284;
      }
      &:first-child {
        border-radius: 6px 0px 0px 0px;
      }
    }
    .split {
      flex-shrink: 0;
      position: absolute;
      top: 14px;
      left: 0px;
      z-index: 2;
      display: inline-block;
      height: 20px;
      // width: 1px;
      // background: #c7c8c9;
      border-left: 1px solid #c7c8c9;
    }
    .item:nth-child(1) > .split,
    .item.checked + .item > .split,
    .split.acitve {
      display: none;
    }
  }
}

.subject-level {
  min-width: 1300px;
  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;
    margin-bottom: -1px;
    &.active {
      border-bottom: 2px solid #449284;
    }    
    .name {
      height: 26px;
      line-height: 26px;
      display: inline-block;
      padding: 0px 10px;
      border-radius: 2px;
      &.active {
        color: #449284;
        font-weight: 700;
        // background: #449284;
      }
    }
  }
}

.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 20px;
  // 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: 40px;
    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: 30px;
  padding-right: 30px;
  min-width: 1125px;
}
</style>
