<template>
  <div class="app-container">
    <el-form ref="queryFormRef" :model="queryParams" :inline="true">
      <el-form-item>
        <el-button type="success" :icon="Plus" @click="handleAdd">新增</el-button>
        <el-button type="danger" :icon="Delete" :disabled="single" @click="handleDelete">删除
        </el-button>
      </el-form-item>

      <el-form-item prop="name">
        <el-input v-model="queryParams.name" placeholder="请输入部门名称" @keyup.enter="handleQuery" />
      </el-form-item>

      <el-form-item prop="status">
        <el-select v-model="queryParams.status" placeholder="部门状态" clearable>
          <el-option :value="1" label="正常" />
          <el-option :value="0" label="禁用" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button class="filter-item" type="primary" :icon="Search" @click="handleQuery">
          搜索
        </el-button>
        <el-button :icon="Refresh" @click="resetQuery"> 重置 </el-button>
      </el-form-item>
    </el-form>

    <el-table v-loading="loading" :data="deptList" row-key="id" default-expand-all
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="name" label="部门名称" />
      <el-table-column prop="status" label="状态" width="100">
        <template #default="scope">
          <el-tag v-if="scope.row.status == 1" type="success">正常</el-tag>
          <el-tag v-else type="info">禁用</el-tag>
        </template>
      </el-table-column>

      <el-table-column prop="sort" label="显示排序" width="200" />

      <el-table-column label="操作" align="center" width="150">
        <template #default="scope">
          <el-button type="primary" :icon="Edit" circle plain @click.stop="handleUpdate(scope.row)">
          </el-button>
          <el-button type="success" :icon="Plus" circle plain @click.stop="handleAdd(scope.row)">
          </el-button>

          <el-button type="danger" :icon="Delete" circle plain @click.stop="handleDelete(scope.row)">
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改部门对话框 -->
    <el-dialog :title="dialog.title" v-model="dialog.visible" width="600px" @closed="cancel">
      <el-form ref="dataFormRef" :model="formData" :rules="rules" label-width="80px">
        <el-form-item label="上级部门" prop="parentId">
          <el-tree-select v-model="formData.parentId" placeholder="选择上级部门" :data="deptOptions" filterable />
        </el-form-item>
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="formData.name" placeholder="请输入部门名称" />
        </el-form-item>
        <el-form-item label="显示排序" prop="sort">
          <el-input-number v-model="formData.sort" controls-position="right" style="width: 100px" :min="0" />
        </el-form-item>
        <el-form-item label="部门状态">
          <el-radio-group v-model="formData.status">
            <el-radio :label="1">正常</el-radio>
            <el-radio :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm"> 确 定 </el-button>
          <el-button @click="cancel"> 取 消 </el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
// Vue依赖
import { onMounted, reactive, ref, toRefs } from "vue";

// API依赖
import {
  getDeptDetail,
  deleteDept,
  updateDept,
  addDept,
  listSelectDepartments,
  listTableDepartments,
} from "@/api/system/dept";

// 组件依赖
import { Search, Plus, Edit, Refresh, Delete } from "@element-plus/icons-vue";
import { ElForm, ElMessage, ElMessageBox } from "element-plus";
import {
  DeptFormData,
  DeptItem,
  DeptQueryParam,
  Dialog,
  Option,
} from "@/types";

// DOM元素的引用声明定义
const queryFormRef = ref(ElForm);
const dataFormRef = ref(ElForm);

const state = reactive({
  // 选中ID数组
  ids: [] as number[],
  // 非单个禁用
  single: true,
  loading: true,
  // 表格树数据
  deptList: [] as DeptItem[],
  // 部门下拉选项
  deptOptions: [] as Option[],
  // 弹窗属性
  dialog: { visible: false } as Dialog,
  // 查询参数
  queryParams: {} as DeptQueryParam,
  // 表单数据
  formData: {
    sort: 1,
    status: 1,
  } as DeptFormData,
  // 表单参数校验
  rules: {
    parentId: [
      { required: true, message: "上级部门不能为空", trigger: "blur" },
    ],
    name: [{ required: true, message: "部门名称不能为空", trigger: "blur" }],
    sort: [{ required: true, message: "显示排序不能为空", trigger: "blur" }],
  },
});

const {
  single,
  loading,
  deptList,
  deptOptions,
  queryParams,
  formData,
  rules,
  dialog,
} = toRefs(state);

/**
 * 部门查询
 */
function handleQuery() {
  state.loading = true;
  listTableDepartments(state.queryParams).then(({ data }) => {
    state.deptList = data;
    state.loading = false;
  });
}

/**
 * 重置查询
 */
function resetQuery() {
  queryFormRef.value.resetFields();
  handleQuery();
}

function handleSelectionChange(selection: any) {
  state.ids = selection.map((item: any) => item.id);
  state.single = selection.length === 0;
}

/**
 * 加载部门下拉数据源
 */
async function loadDeptData() {
  const deptOptions: any[] = [];
  listSelectDepartments().then((response) => {
    const rootDeptOption = {
      value: "0",
      label: "顶级部门",
      children: response.data,
    };
    deptOptions.push(rootDeptOption);
    state.deptOptions = deptOptions;
  });
}

/**
 * 添加部门
 */
function handleAdd(row: any) {
  loadDeptData();
  state.formData.id=undefined
  state.formData.parentId = row.id;
  state.dialog = {
    title: "添加部门",
    visible: true
  };
}

/**
 * 修改部门
 */
async function handleUpdate(row: any) {
  await loadDeptData();
  const deptId = row.id || state.ids;
  state.dialog = {
    title: "修改部门",
    visible: true
  };
  getDeptDetail(deptId).then((response: any) => {
    state.formData = response.data;
  });
}

/**
 * 部门表单提交
 */
function submitForm() {
  dataFormRef.value.validate((valid: any) => {
    if (valid) {
      if (state.formData.id) {
        updateDept(state.formData.id, state.formData).then(() => {
          ElMessage.success("修改成功");
          cancel();
          handleQuery();
        });
      } else {
        addDept(state.formData).then(() => {
          ElMessage.success("新增成功");
          cancel();
          handleQuery();
        });
      }
    }
  });
}

/**
 * 删除部门
 *
 * @param row
 */
function handleDelete(row: any) {
  const ids = [row.id || state.ids].join(",");
  ElMessageBox.confirm(`确认删除已选中的数据项?`, "警告", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  })
    .then(() => {
      deleteDept(ids)
        .then(() => {
          handleQuery();
          ElMessage.success("删除成功");
        })
        .catch(() => {
          console.log(`删除失败`);
        });
    })
    .catch(() => ElMessage.info("已取消删除"));
}

/**
 * 取消/关闭弹窗
 **/
function cancel() {
  dataFormRef.value.resetFields();
  state.dialog.visible = false;
}

onMounted(() => {
  handleQuery();
});
</script>
