<template>
  <div class="app-container">
    <el-form ref="queryForm" :inline="true" :model="queryForm">
      <el-form-item label="菜单名称" prop="menuName">
        <el-input
          v-model="queryForm.menuName"
          size="small"
          placeholder="请输入菜单名称"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="状态" prop="menuStatus">
        <el-select
          v-model="queryForm.menuStatus"
          placeholder="菜单状态"
          clearable
          size="small"
          style="width: 120px"
        >
          <el-option
            v-for="dict in statusOptions"
            :key="dict.value"
            :label="dict.name"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
        >搜索</el-button>
        <el-button
          icon="el-icon-refresh"
          size="mini"
          @click="resetQuery"
        >重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          v-hasPermi="['system:menu:add']"
          type="primary"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd()"
        >新增</el-button>
      </el-col>
    </el-row>

    <el-table
      v-loading="loading"
      border
      :data="menuList"
      row-key="menuId"
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
    >
      <el-table-column
        prop="menuName"
        label="菜单名称"
        :show-overflow-tooltip="true"
        width="160"
      />
      <el-table-column prop="icon" label="图标" align="center" width="100">
        <template slot-scope="scope">
          <svg-icon :icon-class="scope.row.icon" />
        </template>
      </el-table-column>
      <el-table-column prop="sort" label="排序" width="60" />
      <el-table-column
        prop="perms"
        label="权限标识"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        prop="component"
        label="组件路径"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        prop="path"
        label="路由地址"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        prop="menuStatus"
        label="状态"
        :formatter="statusFormat"
        width="80"
      />
      <el-table-column
        prop="visible"
        label="显示状态"
        :formatter="visibleFormat"
        width="80"
      />
      <el-table-column label="创建时间" align="center" prop="createTime">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-hasPermi="['system:menu:update']"
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
          >修改</el-button>
          <el-button
            v-hasPermi="['system:menu:add']"
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
          >新增</el-button>
          <el-button
            v-hasPermi="['system:menu:delete']"
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改菜单对话框 -->
    <el-dialog
      :title="title"
      :visible.sync="open"
      width="600px"
      :close-on-click-modal="false"
      :before-close="menuDialogHandleClose"
    >
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24">
            <el-form-item label="上级菜单">
              <treeselect
                v-model="form.parentId"
                :options="menuOptions"
                :normalizer="normalizer"
                :show-count="true"
                placeholder="选择上级菜单"
              />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="菜单类型" prop="menuType">
              <el-radio-group v-model="form.menuType">
                <el-radio label="M">目录</el-radio>
                <el-radio label="C">菜单</el-radio>
                <el-radio label="F">按钮</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item
              v-if="form.menuType != 'F'"
              label="菜单图标"
              prop="icon"
            >
              <el-popover
                placement="bottom-start"
                width="460"
                trigger="click"
                @show="$refs['iconSelect'].reset()"
              >
                <IconSelect ref="iconSelect" @selected="selected" />
                <el-input
                  slot="reference"
                  v-model="form.icon"
                  placeholder="点击选择图标"
                  readonly
                >
                  <svg-icon
                    v-if="form.icon"
                    slot="prefix"
                    :icon-class="form.icon"
                    class="el-input__icon"
                    style="height: 32px; width: 16px"
                  />
                  <i
                    v-else
                    slot="prefix"
                    class="el-icon-search el-input__icon"
                  />
                </el-input>
              </el-popover>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="菜单名称" prop="menuName">
              <el-input v-model="form.menuName" placeholder="请输入菜单名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="显示排序" prop="sort">
              <el-input-number
                v-model="form.sort"
                controls-position="right"
                :min="0"
              />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item
              v-if="form.menuType != 'F'"
              prop="isFrame"
              label="是否外链"
            >
              <el-radio-group v-model="form.isFrame">
                <el-radio label="0">是</el-radio>
                <el-radio label="1">否</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item
              v-if="form.menuType != 'F'"
              prop="path"
              label="路由地址"
            >
              <el-input v-model="form.path" placeholder="请输入路由地址" />
            </el-form-item>
          </el-col>
          <el-col v-if="form.menuType == 'C'" :span="12">
            <el-form-item label="组件路径" prop="component">
              <el-input v-model="form.component" placeholder="请输入组件路径" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item
              v-if="form.menuType != 'M'"
              prop="perms"
              label="权限标识"
            >
              <el-input
                v-model="form.perms"
                placeholder="请权限标识"
                maxlength="50"
              />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item
              v-if="form.menuType != 'F'"
              prop="visible"
              label="显示状态"
            >
              <el-radio-group v-model="form.visible">
                <el-radio :label="0">显示</el-radio>
                <el-radio :label="1">隐藏</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item
              v-if="form.menuType != 'F'"
              prop="menuStatus"
              label="菜单状态"
            >
              <el-radio-group v-model="form.menuStatus">
                <el-radio
                  v-for="dict in statusOptions"
                  :key="dict.value"
                  :label="parseInt(dict.value)"
                >{{ dict.name }}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="menuDialogHandleClose">取 消</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import {
  listMenu,
  getMenu,
  delMenu,
  addMenu,
  updateMenu
} from '@/api/system/menu'
import Treeselect from '@riophae/vue-treeselect'
// import the styles
import '@riophae/vue-treeselect/dist/vue-treeselect.css'
import IconSelect from '@/components/IconSelect'
export default {
  components: {
    Treeselect,
    IconSelect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 添加/修改对话框 title
      title: '',
      // 查询参数
      queryForm: {
        menuName: '',
        menuStatus: undefined
      },
      // 菜单表格树数据
      menuList: [],
      // 菜单树
      menuOptions: [],
      // 是否显示弹出层
      open: false,
      // 状态数据字典
      statusOptions: [],
      // 显示状态数据字典
      visibleOptions: [],
      // 表单参数
      form: {
        menuId: undefined,
        parentId: 0,
        menuName: undefined,
        icon: undefined,
        menuType: 'M',
        sort: undefined,
        isFrame: '1',
        path: '',
        visible: 0,
        menuStatus: 0
      },
      // 表单校验
      rules: {
        menuName: [
          { required: true, message: '菜单名称不能为空', trigger: 'blur' }
        ],
        sort: [
          { required: true, message: '菜单顺序不能为空', trigger: 'blur' }
        ],
        path: [
          { required: true, message: '路由地址不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getList()
    this.getDicts('status').then((response) => {
      const {
        data
      } = response
      this.statusOptions = data
    })
    this.getDicts('visible').then((response) => {
      const {
        data
      } = response
      this.visibleOptions = data
    })
  },
  methods: {
    /**
     * 选择图标
     */
    selected(name) {
      this.form.icon = name
    },
    handleQuery() {
      this.getList()
    },
    /**
     * 表单重置
     */
    resetQuery() {
      this.$refs.queryForm.resetFields()
      this.handleQuery()
    },
    /**
     * 获取菜单列表
     */
    async getList() {
      this.loading = true
      const {
        data
      } = await listMenu(this.queryForm)
      this.menuList = this.buildTree(data, 'menuId')
      this.loading = false
    },
    /**
     * 添加按钮
     */
    handleAdd(row) {
      this.getTreeselect()
      if (row != null) {
        this.form.parentId = row.menuId
      } else {
        this.form.parentId = 0
      }
      this.title = '添加菜单'
      this.open = true
    },
    /**
     * 修改按钮
     */
    async handleUpdate(row) {
      this.getTreeselect()
      const {
        data
      } = await getMenu(row.menuId)
      this.form = data
      this.title = '修改菜单'
      this.open = true
    },
    /**
     * 删除按钮
     */
    handleDelete(row) {
      this.$confirm(
        '是否确认删除名称为"' + row.menuName + '"的数据项?',
        '警告',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      )
        .then(function() {
          return delMenu(row.menuId)
        })
        .then(() => {
          this.getList()
          this.$message.success('删除成功')
        })
        .catch(function() {})
    },
    /**
     * 菜单状态翻译
     */
    statusFormat(row, column) {
      return this.echoDictName(this.statusOptions, row.menuStatus)
    },
    /**
     * 隐藏状态翻译
     */
    visibleFormat(row, column) {
      return this.echoDictName(this.visibleOptions, row.visible)
    },
    /**
     * 查询菜单下拉树结构
     */
    async getTreeselect() {
      const {
        data
      } = await listMenu()
      this.menuOptions = []
      const menu = { menuId: 0, menuName: '主类目', children: [] }
      menu.children = this.buildTree(data, 'menuId')
      this.menuOptions.push(menu)
    },
    /**
     * 转换菜单数据结构
     */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.menuId,
        label: node.menuName,
        children: node.children
      }
    },
    /**
     * 菜单对话框关闭
     */
    menuDialogHandleClose() {
      this.reset()
      this.open = false
    },
    /**
     * 表单重置
     */
    reset() {
      this.form = {
        menuId: undefined,
        parentId: 0,
        menuName: undefined,
        icon: undefined,
        menuType: 'M',
        sort: undefined,
        isFrame: '1',
        path: '',
        visible: 0,
        menuStatus: 0
      }
      this.$refs['form'].resetFields()
    },
    /**
     * 提交角色表单
     */
    submitForm() {
      this.$refs['form'].validate((valid) => {
        if (valid) {
          if (this.form.menuId !== undefined) {
            updateMenu(this.form).then((response) => {
              this.updateHandle(response, this)
            })
          } else {
            addMenu(this.form).then((response) => {
              this.saveHandle(response, this)
            })
          }
        }
      })
    }
  }
}
</script>
<style lang="scss" scoped>
::v-deep .vue-treeselect__control,
::v-deep .vue-treeselect__placeholder,
::v-deep .vue-treeselect__single-value {
  height: 40px;
  line-height: 40px;
}
</style>
