<template>
  <div class="app-container">
<!--    <doc-alert :title="$t('功能权限')" url="https://doc.iocoder.cn/resource-permission" />-->
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
      <el-form-item :label="$t('菜单名称')" prop="name">
        <el-input v-model="queryParams.name" :placeholder="$t('请输入菜单名称')" clearable @keyup.enter.native="handleQuery"/>
      </el-form-item>
      <el-form-item :label="$t('状态')" prop="status">
        <el-select v-model="queryParams.status" :placeholder="$t('菜单状态')" clearable>
          <el-option v-for="dict in statusDictDatas" :key="parseInt(dict.value)" :label="dict.label" :value="parseInt(dict.value)"/>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" @click="handleQuery">{{ $t('搜索') }}</el-button>
        <el-button icon="el-icon-refresh" @click="resetQuery">{{ $t('重置') }}</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
                   v-hasPermi="['system:menu:create']">{{ $t('新增') }}</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="info" plain icon="el-icon-sort" size="mini" @click="toggleExpandAll">{{$t('展开')}}/{{$t('折叠')}}</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-if="refreshTable" v-loading="loading" :data="menuList" row-key="id" :default-expand-all="isExpandAll"
              :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
      <el-table-column prop="name" :label="$t('菜单名称')" :show-overflow-tooltip="true" width="250">
        <template slot-scope="{row}">
          {{ $l(row, 'name') }}
        </template>
      </el-table-column>
      <el-table-column prop="icon" :label="$t('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="$t('排序')" width="60"></el-table-column>
      <el-table-column prop="permission" :label="$t('权限标识')" :show-overflow-tooltip="true"></el-table-column>
      <el-table-column prop="component" :label="$t('组件路径')" :show-overflow-tooltip="true"></el-table-column>
      <el-table-column prop="status" :label="$t('状态')" width="80">
        <template slot-scope="scope">
          <dict-tag :type="DICT_TYPE.COMMON_STATUS" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column :label="$t('创建时间')" align="center" prop="createTime">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column :label="$t('操作')" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
                     v-hasPermi="['system:menu:update']">{{ $t('修改') }}</el-button>
          <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)"
                     v-hasPermi="['system:menu:create']">{{ $t('新增') }}</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
                     v-hasPermi="['system:menu:delete']">{{ $t('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" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24">
            <el-form-item :label="$t('上级菜单')">
              <treeselect v-model="form.parentId" :options="menuOptions" :normalizer="normalizer" :show-count="true"
                          :placeholder="$t('选择上级菜单')"/>
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item :label="$t('菜单类型')" prop="type">
              <el-radio-group v-model="form.type">
                <el-radio v-for="dict in menuTypeDictDatas" :key="parseInt(dict.value)" :label="parseInt(dict.value)">
                  {{$l(dict, 'label')}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12" v-if="form.type == 2 || form.type == 1">
            <el-form-item :label="$t('显示菜单')" prop="isShowInMenuBar">
              <dict-selector v-model="form.isShowInMenuBar" :type="DICT_TYPE.INFRA_BOOLEAN_STRING" formatter="bool" form-type="radio" />
            </el-form-item>
          </el-col>
          <!--同一个组件可能会配置多个路由,通过路由设置keepalive会产生冲突,此字段废弃 22-09-17 @老丁 -->
          <!-- <el-col :span="12" v-if="form.type == 2">
            <el-form-item :label="$t('保活')" prop="keepalive">
              <dict-selector v-model="form.keepalive" :type="DICT_TYPE.INFRA_BOOLEAN_STRING" formatter="bool" form-type="radio" />
            </el-form-item>
          </el-col> -->
          <el-col :span="24">
            <el-form-item v-if="form.type != '3'" :label="$t('菜单图标')">
              <el-popover placement="bottom-start" width="460" trigger="click" @show="$refs['iconSelect'].reset()">
                <IconSelect ref="iconSelect" @selected="selected" />
                <el-input slot="reference" v-model="form.icon" :placeholder="$t('点击选择图标')" readonly>
                  <svg-icon v-if="form.icon" slot="prefix" :icon-class="form.icon" class="el-input__icon"
                            style="height: 32px;width: 16px;"/>
                  <i v-else slot="prefix" class="el-icon-search el-input__icon" />
                </el-input>
              </el-popover>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item :label="$t('菜单名称')" prop="name">
              <el-input v-model="form.name" :placeholder="$t('请输入菜单名称')" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item :label="$t('英文名称')" prop="nameEn">
              <el-input v-model="form.nameEn" :placeholder="$t('请输入菜单英文名称')" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item :label="$t('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.type != '3'" :label="$t('路由地址')" prop="path">
              <el-input v-model="form.path" :placeholder="$t('请输入路由地址')" />
            </el-form-item>
          </el-col>
          <el-col :span="12" v-if="form.type == '2'">
            <el-form-item :label="$t('组件路径')" prop="component">
              <el-input v-model="form.component" :placeholder="$t('请输入组件路径')" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.type != '1'" :label="$t('权限标识')">
              <el-input v-model="form.permission" :placeholder="$t('请权限标识')" maxlength="50" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item :label="$t('菜单状态')">
              <el-radio-group v-model="form.status">
                <el-radio v-for="dict in this.getDictDatas(DICT_TYPE.COMMON_STATUS)"
                          :key="dict.value" :label="parseInt(dict.value)">{{$l(dict, 'label')}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item v-if="form.type != '3'" :label="$t('重定向')" prop="redirect">
              <el-input v-model="form.redirect" :placeholder="$t('请输入重定向地址')" />
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">{{ $t('确 定') }}</el-button>
        <el-button @click="cancel">{{ $t('取 消') }}</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listMenu, getMenu, delMenu, addMenu, updateMenu } from "@/api/system/menu";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
import IconSelect from "@/components/IconSelect";

import { SystemMenuTypeEnum, CommonStatusEnum } from '@/utils/constants'
import { getDictDatas, DICT_TYPE } from '@/utils/dict'

export default {
  name: "Menu",
  components: { Treeselect, IconSelect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 菜单表格树数据
      menuList: [],
      // 菜单树选项
      menuOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开,默认全部折叠
      isExpandAll: false,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        name: undefined,
        visible: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        name: [
          { required: true, message: this.$t("菜单名称不能为空"), trigger: "blur" }
        ],
        enName: [
          { required: true, message: this.$t("菜单英文名称不能为空"), trigger: "blur" }
        ],
        sort: [
          { required: true, message: this.$t("菜单顺序不能为空"), trigger: "blur" }
        ],
        path: [
          { required: true, message: this.$t("路由地址不能为空"), trigger: "blur" }
        ],
        status: [
          { required: true, message: this.$t("状态不能为空"), trigger: "blur" }
        ]
      },

      // 枚举
      MenuTypeEnum: SystemMenuTypeEnum,
      CommonStatusEnum: CommonStatusEnum,
      // 数据字典
      menuTypeDictDatas: getDictDatas(DICT_TYPE.SYSTEM_MENU_TYPE),
      statusDictDatas: getDictDatas(DICT_TYPE.COMMON_STATUS)
    };
  },
  created() {
    this.getList();
  },
  methods: {
    // 选择图标
    selected(name) {
      this.form.icon = name;
    },
    /** 查询菜单列表 */
    getList() {
      this.loading = true;
      listMenu(this.queryParams).then(response => {
        this.menuList = this.handleTree(response.data, "id");
        this.loading = false;
      });
    },
    /** 转换菜单数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.id,
        label: this.$l(node, 'name'),
        children: node.children
      };
    },
    /** 查询菜单下拉树结构 */
    getTreeselect() {
      console.log('this.handleTree', this.handleTree)
      listMenu().then(response => {
        this.menuOptions = [];
        const menu = { id: 0, name: this.$t('主类目'), children: [] };
        menu.children = this.handleTree(response.data, "id");
        this.menuOptions.push(menu);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        /* id: undefined,
        parentId: 0,
        name: undefined,
        enName: undefined,
        icon: undefined,
        isShowInMenuBar: true,
        type: SystemMenuTypeEnum.DIR,
        sort: undefined,
        keepalive: false,
        redirect: undefined,
        status: CommonStatusEnum.ENABLE */
      };
      /* this.resetForm("form"); */
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.id) {
        this.form.parentId = row.id;
      } else {
        this.form.parentId = 0;
      }
      this.open = true;
      this.title = this.$t("添加菜单");
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      getMenu(row.id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = this.$t("修改菜单");
      });
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          // 若权限类型为目录或者菜单时,进行 path 的校验,避免后续拼接出来的路由无法跳转
          if (this.form.type === SystemMenuTypeEnum.DIR
            || this.form.type === SystemMenuTypeEnum.MENU) {
            // 如果是外链,则不进行校验
            const path = this.form.path
            if (path && path.indexOf('http://') === -1 || path.indexOf('https://') === -1) {
              // 父权限为根节点,path 必须以 / 开头
              if (this.form.parentId === 0 && path.charAt(0) !== '/') {
                this.$modal.msgSuccess(this.$t('前端必须以 / 开头'))
                return
              } else if (this.form.parentId !== 0 && path.charAt(0) === '/') {
                this.$modal.msgSuccess(this.$t('前端不能以 / 开头'))
                return
              }
            }
          }

          // 提交
          if (this.form.id !== undefined) {
            updateMenu(this.form).then(response => {
              this.$modal.msgSuccess(this.$t("修改成功"));
              this.open = false;
              this.getList();
            });
          } else {
            addMenu(this.form).then(response => {
              this.$modal.msgSuccess(this.$t("新增成功"));
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm(this.$t('是否确认删除此项?')).then(function() {
          return delMenu(row.id);
        }).then(() => {
          this.getList();
          this.$modal.msgSuccess(this.$t("删除成功"));
      }).catch(() => {});
    }
  }
};
</script>