<template>
  <div class="department-container">
    <el-card class="box-card">
      <template #header>
        <div class="card-header">
          <h3>部门管理</h3>
          <el-button type="primary" @click="handleAdd">新增部门</el-button>
        </div>
      </template>

      <el-form :inline="true" :model="searchForm" class="search-form">
        <el-form-item label="部门名称">
          <el-input v-model="searchForm.q" placeholder="请输入部门名称" clearable />
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleSearch">查询</el-button>
          <el-button @click="resetSearch">重置</el-button>
        </el-form-item>
      </el-form>

      <el-table :data="tableData" border style="width: 100%" v-loading="loading" row-key="id" default-expand-all
        :tree-props="{ children: 'children', hasChildren: 'hasChildren' }">
        <el-table-column prop="id" label="编号" width="80" />
        <el-table-column prop="name" label="部门名称" />
        <el-table-column prop="code" label="部门代码" />
        <el-table-column prop="fullName" label="全名" />
        <el-table-column prop="level" label="层级" width="80" />
        <el-table-column prop="sort" label="排序" width="80" />
        <el-table-column prop="managerName" label="管理者" />
        <el-table-column prop="updateTime" label="更新时间" />
        <el-table-column label="启用" width="80">
          <template #default="scope">
            <el-tag :type="scope.row.enable ? 'success' : 'danger'">
              {{ scope.row.enable ? '是' : '否' }}
            </el-tag>
          </template>
        </el-table-column>
        <el-table-column label="可见" width="80">
          <template #default="scope">
            <el-tag :type="scope.row.visible ? 'success' : 'danger'">
              {{ scope.row.visible ? '是' : '否' }}
            </el-tag>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template #default="scope">
            <el-button type="primary" size="small" @click="handleEdit(scope.row)">编辑</el-button>
            <el-button type="danger" size="small" @click="handleDelete(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <div class="pagination">
        <el-pagination v-model:current-page="currentPage" v-model:page-size="pageSize" :page-sizes="[10, 20, 50, 100]"
          :total="total" layout="total, sizes, prev, pager, next, jumper" @size-change="handleSizeChange"
          @current-change="handleCurrentChange" />
      </div>
    </el-card>

    <!-- 部门表单对话框 -->
    <el-dialog v-model="dialogVisible" :title="formType === 'add' ? '新增部门' : '编辑部门'" width="600px">
      <el-form ref="formRef" :model="form" :rules="formRules" label-width="100px">
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入部门名称" />
        </el-form-item>
        <el-form-item label="部门代码" prop="code">
          <el-input v-model="form.code" placeholder="请输入部门代码" />
        </el-form-item>
        <el-form-item label="部门全名" prop="fullName">
          <el-input v-model="form.fullName" placeholder="请输入部门全名" />
        </el-form-item>
        <el-form-item label="上级部门" prop="parentID">
          <el-select v-model="form.parentID" placeholder="请选择上级部门" clearable filterable>
            <el-option label="无上级" :value="0" />
            <el-option v-for="dept in departmentOptions" :key="dept.id" :label="dept.name" :value="dept.id" />
          </el-select>
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input-number v-model="form.sort" :min="0" placeholder="同级内排序" />
        </el-form-item>
        <el-form-item label="管理者" prop="managerId">
          <el-select v-model="form.managerId" placeholder="请选择管理者" clearable filterable>
            <el-option label="无管理者" :value="0" />
            <!-- 这里需要用户列表，暂时留空 -->
          </el-select>
        </el-form-item>
        <el-form-item label="启用状态" prop="enable">
          <el-switch v-model="form.enable" :active-value="true" :inactive-value="false" />
        </el-form-item>
        <el-form-item label="可见状态" prop="visible">
          <el-switch v-model="form.visible" :active-value="true" :inactive-value="false" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <template #footer>
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="submitForm">确定</el-button>
      </template>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted } from 'vue';
import { ElMessageBox } from 'element-plus';
import type { FormInstance, FormRules } from 'element-plus';
import { request } from '@core/utils/request';

// 定义部门类型接口
interface Department {
  id: number;
  tenantId: number;
  code: string;
  name: string;
  fullName: string;
  parentID: number;
  level: number;
  sort: number;
  enable: boolean;
  visible: boolean;
  managerId: number;
  ex1: number;
  ex2: number;
  ex3: number;
  ex4: string;
  ex5: string;
  ex6: string;
  createUser: string;
  createUserID: number;
  createIP: string;
  createTime: string;
  updateUser: string;
  updateUserID: number;
  updateIP: string;
  updateTime: string;
  remark: string;
  tenantName: string;
  managerName: string;
  parentName: string;
  parentPath: string;
  path: string;
  children?: Department[];
  hasChildren?: boolean;
}

// 表格数据
const tableData = ref<Department[]>([]);
const loading = ref(false);
const total = ref(0);
const currentPage = ref(1);
const pageSize = ref(10);
const departmentOptions = ref<Department[]>([]);

// 查询表单
const searchForm = reactive({
  q: '',
});

// 表单相关
const dialogVisible = ref(false);
const formType = ref<'add' | 'edit'>('add');
const formRef = ref<FormInstance | null>(null);
const form = reactive<Department>({
  id: 0,
  tenantId: 0,
  code: '',
  name: '',
  fullName: '',
  parentID: 0,
  level: 0,
  sort: 0,
  enable: true,
  visible: true,
  managerId: 0,
  ex1: 0,
  ex2: 0,
  ex3: 0,
  ex4: '',
  ex5: '',
  ex6: '',
  createUser: '',
  createUserID: 0,
  createIP: '',
  createTime: '',
  updateUser: '',
  updateUserID: 0,
  updateIP: '',
  updateTime: '',
  remark: '',
  tenantName: '',
  managerName: '',
  parentName: '',
  parentPath: '',
  path: '',
});

// 表单验证规则
const formRules = reactive<FormRules>({
  name: [
    { required: true, message: '请输入部门名称', trigger: 'blur' }
  ],
  code: [
    { required: true, message: '请输入部门代码', trigger: 'blur' }
  ]
});

// 构建树结构
const buildTreeData = (data: Department[]): Department[] => {
  const map = new Map<number, Department>();
  const roots: Department[] = [];

  // 先将所有节点加入map
  data.forEach(item => {
    map.set(item.id, { ...item, children: [] });
  });

  // 构建树结构
  data.forEach(item => {
    const node = map.get(item.id)!;
    if (item.parentID === 0) {
      roots.push(node);
    } else {
      const parent = map.get(item.parentID);
      if (parent) {
        parent.children = parent.children || [];
        parent.children.push(node);
        parent.hasChildren = true;
      }
    }
  });

  return roots;
};

// 加载数据
const loadData = async () => {
  loading.value = true;
  try {
    const data = await request.get('/Admin/Department', {
      params: {
        pageIndex: currentPage.value,
        pageSize: pageSize.value,
        q: searchForm.q
      }
    });

    let dataList: Department[] = [];

    // 处理不同的响应格式
    if (data && typeof data === 'object' && 'data' in data && 'page' in data) {
      // 包含分页信息的响应
      dataList = Array.isArray(data.data) ? data.data : [];
      total.value = data.page?.totalCount || dataList.length;
    } else if (Array.isArray(data)) {
      // 直接返回数组的响应（无分页信息）
      dataList = data;
      total.value = data.length;
    } else {
      dataList = [];
      total.value = 0;
    }

    // 构建树结构
    tableData.value = buildTreeData(dataList);

    // 同时保存平铺的数据用于部门选项
    departmentOptions.value = dataList.filter(item => item.id !== form.id);
  } catch {
    tableData.value = [];
    departmentOptions.value = [];
    total.value = 0;
  } finally {
    loading.value = false;
  }
};

// 页码变更处理
const handleCurrentChange = (page: number) => {
  currentPage.value = page;
  loadData();
};

// 每页显示条数变更处理
const handleSizeChange = (size: number) => {
  pageSize.value = size;
  currentPage.value = 1;
  loadData();
};

// 搜索
const handleSearch = () => {
  currentPage.value = 1;
  loadData();
};

// 重置搜索
const resetSearch = () => {
  searchForm.q = '';
  currentPage.value = 1;
  loadData();
};

// 新增
const handleAdd = () => {
  formType.value = 'add';
  Object.assign(form, {
    id: 0,
    tenantId: 0,
    code: '',
    name: '',
    fullName: '',
    parentID: 0,
    level: 0,
    sort: 0,
    enable: true,
    visible: true,
    managerId: 0,
    ex1: 0,
    ex2: 0,
    ex3: 0,
    ex4: '',
    ex5: '',
    ex6: '',
    createUser: '',
    createUserID: 0,
    createIP: '',
    createTime: '',
    updateUser: '',
    updateUserID: 0,
    updateIP: '',
    updateTime: '',
    remark: '',
    tenantName: '',
    managerName: '',
    parentName: '',
    parentPath: '',
    path: '',
  });
  dialogVisible.value = true;
};

// 编辑
const handleEdit = (row: Department) => {
  formType.value = 'edit';
  Object.assign(form, { ...row });
  // 更新部门选项，排除自己
  departmentOptions.value = departmentOptions.value.filter(item => item.id !== row.id);
  dialogVisible.value = true;
};

// 删除
const handleDelete = (row: Department) => {
  ElMessageBox.confirm('确认删除该部门吗？', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  })
    .then(async () => {
      try {
        await request.delete('/Admin/Department', {
          params: { id: row.id }
        });
        loadData();
      } catch {
        // 错误提示已经在 request 拦截器中自动处理
      }
    })
    .catch(() => { });
};

// 提交表单
const submitForm = async () => {
  if (!formRef.value) return;

  formRef.value.validate(async (valid: boolean) => {
    if (valid) {
      try {
        if (formType.value === 'add') {
          await request.post('/Admin/Department', form);
        } else {
          await request.put('/Admin/Department', form);
        }
        dialogVisible.value = false;
        loadData();
      } catch {
        // 错误提示已经在 request 拦截器中自动处理
      }
    }
  });
};

// 初始化加载数据
onMounted(() => {
  loadData();
});
</script>

<style scoped>
.department-container {
  padding: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.search-form {
  margin-bottom: 20px;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}
</style>