<template>
  <div class="app-container">
    <!-- 查询表单区域 -->
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" label-position="top">
      <el-row :gutter="20">
        <el-col :span="6">
          <el-form-item label="部门名称">
            <el-input v-model="queryParams.deptName" placeholder="请输入部门名称" style="width: 100%" clearable></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label="状态">
            <el-select v-model="queryParams.status" clearable placeholder="请选择状态" style="width: 100%">
              <el-option :key="item.value" v-for="item in statusList" :label="item.label" :value="item.value">
              </el-option>
            </el-select>
          </el-form-item>
        </el-col>
      </el-row>
      <el-row :gutter="20">
        <el-col :span="6">
          <el-form-item label="搜索">
            <el-button style="width: 100%;" type="primary" icon="el-icon-search" @click="handleQuery">搜索</el-button>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label="重置">
            <el-button style="width: 100%;" icon="el-icon-refresh" type="primary" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-col>
      </el-row>
    </el-form>

    <!-- 操作按钮区域 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" class="editButton" size="small" icon="el-icon-plus" @click="handleAdd">添加</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="info" icon="el-icon-sort" size="small" @click="toggleExpandAll">展开/折叠</el-button>
      </el-col>
    </el-row>

    <!-- 表格区域 -->
    <div class="border-card">
      <el-table v-if="refreshTable" v-loading="loading" :data="deptList" row-key="deptId" border :default-expand-all="isExpandAll" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
        <el-table-column align="center" prop="deptName" label="部门名称" min-width="260"></el-table-column>
        <el-table-column align="center" prop="orderNum" label="排序" min-width="100"></el-table-column>
        <el-table-column align="center" min-width="80px" label="状态">
          <template slot-scope="props">
            <span v-if="props.row.status == 0" style="color: #67C23A;font-weight: bold;">启用</span>
            <span v-if="props.row.status == 1" style="color: #E6A23C;font-weight: bold;">停用</span>
          </template>
        </el-table-column>
        <el-table-column label="创建时间" align="center" prop="createTime" min-width="100">
          <template slot-scope="scope">
            <span>{{ scope.row.createTime }}</span>
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center" min-width="200px" class-name="small-padding fixed-width">
          <template slot-scope="scope">
            <el-button type="text" icon="el-icon-edit" class="editText" size="small" @click="handleUpdate(scope.row)">修改</el-button>
            <el-button type="text" icon="el-icon-plus" class="plusText" size="small" @click="handleAdd(scope.row)">添加</el-button>
            <el-button v-if="!scope.row.children" type="text" icon="el-icon-delete" class="deleteText" size="small" @click="handleDelete(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>

    <!-- 添加或修改部门对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="40%" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24" v-if="form.parentId !== 0">
            <el-form-item label="上级部门" prop="parentId">
              <treeselect v-model="form.parentId" :options="deptOptions" :normalizer="normalizer" placeholder="选择上级部门" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="部门名称" prop="deptName">
              <el-input v-model="form.deptName" placeholder="请输入部门名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="显示排序" prop="orderNum">
              <el-input-number v-model="form.orderNum" controls-position="right" :min="0" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="负责人" prop="leader">
              <el-input v-model="form.leader" placeholder="请输入负责人" maxlength="20" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="联系电话" prop="phone">
              <el-input v-model="form.phone" placeholder="请输入联系电话" maxlength="11" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="form.email" placeholder="请输入邮箱" maxlength="50" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="部门状态">
              <el-radio-group v-model="form.status">
                <el-radio v-for="dict in statusList" :key="dict.value" :label="dict.value">{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listDept, getDept, delDept, addDept, updateDept, listDeptExcludeChild } from '@/api/dept'
import Treeselect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'

export default {
  name: 'Dept',
  components: { Treeselect },
  data() {
    return {
      statusList: [
        {
          value: '0',
          label: '启用'
        },
        {
          value: '1',
          label: '停用'
        }
      ],
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 表格树数据
      deptList: [],
      // 部门树选项
      deptOptions: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        deptName: undefined,
        status: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        parentId: [
          { required: true, message: '上级部门不能为空', trigger: 'blur' }
        ],
        deptName: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' }
        ],
        orderNum: [
          { required: true, message: '显示排序不能为空', trigger: 'blur' }
        ],
        email: [
          {
            type: 'email',
            message: '请输入正确的邮箱地址',
            trigger: ['blur', 'change']
          }
        ],
        phone: [
          {
            pattern: /^1[3|4|5|6|7|8|9][0-9]\d{8}$/,
            message: '请输入正确的手机号码',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询部门列表 */
    getList() {
      this.loading = true
      listDept(this.queryParams).then(response => {
        this.deptList = this.handleTree(response.data.data, 'deptId')
        this.loading = false
      })
    },
    /** 转换部门数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.deptId,
        label: node.deptName,
        children: node.children
      }
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        deptId: undefined,
        parentId: undefined,
        deptName: undefined,
        orderNum: undefined,
        leader: undefined,
        phone: undefined,
        email: undefined,
        status: '0'
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.queryParams = {
        deptName: undefined,
        status: undefined
      }
      this.handleQuery()
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      if (row != undefined) {
        this.form.parentId = row.deptId
      }
      this.open = true
      this.title = '添加部门'
      listDept().then(response => {
        this.deptOptions = this.handleTree(response.data.data, 'deptId')
      })
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false
      this.isExpandAll = !this.isExpandAll
      this.$nextTick(() => {
        this.refreshTable = true
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      getDept(row.deptId).then(response => {
        this.form = response.data.data
        this.open = true
        this.title = '修改部门'
        listDeptExcludeChild(row.deptId).then(response => {
          this.deptOptions = this.handleTree(response.data.data, 'deptId')
          if (this.deptOptions.length == 0) {
            const noResultsOptions = { deptId: this.form.parentId, deptName: this.form.parentName, children: [] }
            this.deptOptions.push(noResultsOptions)
          }
        })
      })
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.deptId != undefined) {
            updateDept(this.form).then(response => {
              this.$notify({
                title: '成功',
                message: '修改成功',
                type: 'success',
                duration: 2000
              })
              this.open = false
              this.getList()
            })
          } else {
            addDept(this.form).then(response => {
              this.$notify({
                title: '成功',
                message: '新增成功',
                type: 'success',
                duration: 2000
              })
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm('是否确认删除名称为"' + row.deptName + '"的数据项？').then(function() {
        return delDept(row.deptId)
      }).then(() => {
        this.getList()
        this.$msgSuccess('删除成功')
      }).catch(() => {})
    }
  }
}
</script>