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<template>
  <a-card class="tree_con" :loading="cardLoading" :bordered="false" @contextmenu.native="e=>e.preventDefault()">
    <a-spin :spinning="loading">
      <div style="display: flex;flex-direction: column;height: 100%">
        <div style="display: flex">
          <a-input placeholder="输入关键字进行搜索" allowClear v-model="searchInput"
                   @change="handleSearchInputChange"/>
          <a-dropdown :trigger="['click']" placement="bottomCenter" style="margin: 0 8px">
            <a-menu slot="overlay">
              <a-menu-item key="1" @click="expandedKeys = allTreeKeys">展开所有</a-menu-item>
              <a-menu-item key="2" @click="expandedKeys = ['-1']">合并所有</a-menu-item>
              <a-menu-item key="3" @click="queryTreeData">刷新</a-menu-item>
            </a-menu>
            <a-button>
              <a-icon type="bars"/>
            </a-button>
          </a-dropdown>
          <a-button type="primary" v-has="'product_add'"
                    @click="$refs.productModalFormRef.triggerCorrespondingMethod({modalTitle:'添加产品',methodName:'handleProductAdd'})">
            <a-icon type="plus"></a-icon>
            产品
          </a-button>
        </div>
 
        <!--产品结构树-->
        <div class="" style="flex: 1;overflow:auto;margin-top: 10px">
          <a-tree ref="tree" show-icon :checkStrictly="checkStrictly" :expandedKeys.sync="expandedKeys"
                  :selectedKeys="selectedKeys" :treeData="treeDataSource" :autoExpandParent="autoExpandParent"
                  @select="handleTreeSelect" @expand="handleTreeExpand" @rightClick="handleTreeRightClick">
            <template slot="title" slot-scope="{ label, parentId, entity, key:treeKey,type}">
              <ProductStructureTreeContextMenu ref="contextMenuRef"
                                               :treeParams="{label,treeKey,searchValue,type,entity}"/>
            </template>
 
            <a-icon slot="switcherIcon" type="down"/>
            <a-icon slot="product" type="shopping"/>
            <a-icon slot="component" type="camera"/>
            <a-icon slot="part" type="hdd"/>
            <a-icon slot="process" type="apartment"/>
            <a-icon slot="processStep" type="tool"/>
          </a-tree>
        </div>
      </div>
    </a-spin>
 
    <!--产品弹窗-->
    <ProductModal ref="productModalFormRef" :currentTreeNodeInfo="rightClickSelected"
                  @submitSuccess="queryTreeData"/>
    <!--部件弹窗-->
    <ComponentModal :currentTreeNodeInfo="rightClickSelected" @submitSuccess="modalFormSubmitSuccess"/>
    <!--零件弹窗-->
    <PartModal :currentTreeNodeInfo="rightClickSelected" @submitSuccess="modalFormSubmitSuccess"/>
    <!--工序弹窗-->
    <ProcessModal :currentTreeNodeInfo="rightClickSelected" @submitSuccess="modalFormSubmitSuccess"/>
    <!--工步弹窗-->
    <ProcessStepModal :currentTreeNodeInfo="rightClickSelected" @submitSuccess="modalFormSubmitSuccess"/>
  </a-card>
</template>
 
<script>
  import dncApi from '@/api/dnc'
  import { deleteAction } from '@/api/manage'
  import ProductStructureTreeContextMenu from './ProductStructureTreeContextMenu'
  import ProductModal from './Product/ProductModal'
  import ComponentModal from './Component/ComponentModal'
  import PartModal from './Part/PartModal'
  import ProcessModal from './Process/ProcessModal'
  import ProcessStepModal from './ProcessStep/ProcessStepModal'
 
  export default {
    name: 'ProductStructureTree',
    components: {
      ProcessStepModal,
      ProcessModal,
      PartModal,
      ComponentModal,
      ProductModal,
      ProductStructureTreeContextMenu
    },
    data() {
      return {
        searchInput: '',
        cardLoading: false,
        loading: false,
        treeDataSource: [],
        selectedKeys: [],
        expandedKeys: [],
        searchValue: '',
        dataList: [],
        autoExpandParent: true,
        checkStrictly: true,
        allTreeKeys: [],
        currentSelected: {},
        rightClickSelected: {},
        url: {
          delete: '/nc/product/delete'
        }
      }
    },
    created() {
      this.queryTreeData()
      this.$bus.$on('treeMenuItemMethodTrigger', this.triggerCorrespondingMethod)
    },
    methods: {
      queryTreeData() {
        this.loading = true
        this.cardLoading = true
        dncApi.getProductStructureTreeApi().then(res => {
          console.log('res', res)
          if (res.success) {
            this.dataList = []
            this.allTreeKeys = []
            this.treeDataSource = res.list
            this.generateList(this.treeDataSource)
            // this.expandedKeys = this.allTreeKeys
            if (this.expandedKeys.length === 0) this.expandedKeys = [this.treeDataSource[0].id]
          } else {
            this.$message.warn(res.message)
          }
        }).finally(() => {
          this.loading = false
          this.cardLoading = false
        })
      },
 
      /**
       * 树节点选中时触发
       * @param selectedKeys 选中节点key
       * @param {node} node 节点对象
       */
      handleTreeSelect(selectedKeys, { node }) {
        let record = node.dataRef
        this.currentSelected = Object.assign({}, record)
        this.selectedKeys = selectedKeys
        // 向右侧父级组件发送当前选中树节点信息
        this.$bus.$emit('sendCurrentTreeNodeInfo', this.currentSelected)
      },
 
      /**
       * 树节点右键单击节点时触发
       * @param event 事件对象
       * @param node 节点对象
       */
      handleTreeRightClick({ event, node }) {
        const record = node.dataRef
        this.rightClickSelected = Object.assign({}, record)
      },
 
      /**
       * 树节点右键单击菜单中删除按钮时触发
       */
      handleDelete() {
        this.$confirm({
          title: '提示',
          content: '确认删除此条记录吗?',
          okText: '确认',
          okType: 'danger',
          cancelText: '取消',
          onOk: () => {
            console.log('this.rightClickSelected.id', this.rightClickSelected.id)
            if (!this.url.delete) {
              this.$message.error('请设置url.delete属性!')
              return
            }
            const that = this
            deleteAction(that.url.delete, { id: this.rightClickSelected.id })
              .then((res) => {
                if (res.success) {
                  that.queryTreeData()
                  that.$notification.success({
                    message: '消息',
                    description: res.message
                  })
                } else {
                  that.$notification.warning({
                    message: '消息',
                    description: res.message
                  })
                }
              })
          }
        })
      },
 
      /**
       * 自动展开添加下级节点的父节点
       */
      modalFormSubmitSuccess(isAddNextLevel) {
        // 判断是否为添加下级并且判断父节点是否展开
        if (isAddNextLevel && !this.expandedKeys.includes(this.rightClickSelected.id)) this.expandedKeys.push(this.rightClickSelected.id)
        this.queryTreeData()
      },
 
      /**
       * 树节点展开合并时触发
       * @param expandedKeys 展开项key
       */
      handleTreeExpand(expandedKeys) {
        this.expandedKeys = expandedKeys
        this.autoExpandParent = false
      },
 
      /* 输入查询内容变化时触发 */
      handleSearchInputChange() {
        let search = this.searchInput
        let expandedKeys = this.dataList
          .map(item => {
            if (item.title != null) {
              if (item.title.indexOf(search) > -1) {
                return this.getParentKey(item.key, this.treeDataSource)
              }
              return null
            }
          })
          .filter((item, i, self) => item && self.indexOf(item) === i)
        Object.assign(this, {
          expandedKeys,
          searchValue: search,
          autoExpandParent: true
        })
      },
 
      /**
       * 递归获得输入项的父级key
       * @param key 子项key
       * @param tree 子项
       */
      getParentKey(key, tree) {
        let parentKey
        for (let i = 0; i < tree.length; i++) {
          const node = tree[i]
          if (node.children) {
            if (node.children.some(item => item.key === key)) {
              parentKey = node.key
            } else if (
              this.getParentKey(key, node.children)) {
              parentKey = this.getParentKey(key, node.children)
            }
          }
        }
        return parentKey
      },
 
      /**
       * 递归获得所有树节点key
       * @param data
       */
      generateList(data) {
        for (let i = 0; i < data.length; i++) {
          data[i].key = data[i].id
          const node = data[i]
          const key = node.id
          const title = node.label
          this.dataList.push({ key, title })
          this.allTreeKeys.push(key)
          this.setTreeNodeIcon(node)
          if (node.children) this.generateList(node.children)
        }
      },
 
      triggerCorrespondingMethod({ methodName, modalTitle }) {
        if (this[methodName]) this[methodName](modalTitle)
      },
 
      /**
       * 设置树节点图标
       * @param treeNode
       */
      setTreeNodeIcon(treeNode) {
        switch (treeNode.type) {
          case 1:
            treeNode.slots = { icon: 'product' }
            break
          case 2:
            treeNode.slots = { icon: 'component' }
            break
          case 3:
            treeNode.slots = { icon: 'part' }
            break
          case 5:
            treeNode.slots = { icon: 'process' }
            break
          case 6:
            treeNode.slots = { icon: 'processStep' }
            break
          default:
        }
      }
    }
  }
</script>
 
<style lang="less" scoped>
  /deep/ .ant-card-body {
    padding: 0 12px 0 0;
  }
 
  /deep/ .ant-card-body, /deep/ .ant-spin-nested-loading, /deep/ .ant-spin-container {
    height: 100%;
  }
 
  /deep/ .ant-tree-node-content-wrapper {
    width: calc(100% - 24px);
  }
 
  /deep/ .ant-tree-title, .ant-tree-title .ant-dropdown-trigger {
    display: inline-block;
    width: calc(100% - 24px) !important;
  }
 
  ::-webkit-scrollbar {
    width: 8px;
  }
 
  @media screen and (min-width: 1920px) {
    .tree_con {
      height: 748px !important;
    }
  }
 
  @media screen and (min-width: 1680px) and (max-width: 1920px) {
    .tree_con {
      height: 748px !important;
    }
  }
 
  @media screen and (min-width: 1400px) and (max-width: 1680px) {
    .tree_con {
      height: 600px !important;
    }
  }
 
  @media screen and (min-width: 1280px) and (max-width: 1400px) {
    .tree_con {
      height: 501px !important;
    }
  }
 
  @media screen and (max-width: 1280px) {
    .tree_con {
      height: 501px !important;
    }
  }
</style>