import React, { useState, useEffect } from 'react';
import { useIntl } from 'umi';
import { Card, Table, Button, Modal, Form, Input, Space, message, Select, TreeSelect, Popconfirm, Tag } from 'antd';
import { PlusOutlined, DeleteOutlined, ExclamationCircleOutlined, EditOutlined } from '@ant-design/icons';
import { getCategoryList, getAllCategories, addCategory, updateCategory, deleteCategory } from '@/servers/api/friendLink';
import { useFriendLinkDict } from '@/dicts/friendLinkDict';
import styles from './friendLinkManage.less';

const { Option } = Select;
const { TextArea } = Input;

// 友情链接分类类型定义已移至全局typings.d.ts

const FriendLinkCategory: React.FC = () => {
  const intl = useIntl();
  const { categoryTypeOptions, getCategoryTypeText } = useFriendLinkDict();
  const [loading, setLoading] = useState<boolean>(false);
  const [modalVisible, setModalVisible] = useState<boolean>(false);
  const [isEdit, setIsEdit] = useState<boolean>(false);
  const [currentCategory, setCurrentCategory] = useState<API.CategoryType | null>(null);
  const [categoryData, setCategoryData] = useState<API.CategoryType[]>([]);
  const [pagination, setPagination] = useState({
    current: 1,
    pageSize: 10,
    total: 0,
  });
  const [form] = Form.useForm();

  // 获取分类列表
  const fetchCategoryList = async (pageNo = 1, pageSize = 10) => {
    setLoading(true);
    try {
      const res = await getCategoryList({
        basePageRequest: {
          pageNo,
          pageSize,
        },
      });

      if (res.data && res.success) {
        setCategoryData(res.data.records);
        setPagination({
          current: res.data.current,
          pageSize: res.data.size,
          total: res.data.total,
        });
      }
    } catch (error) {
      console.error('Failed to fetch category list', error);
    } finally {
      setLoading(false);
    }
  };

  // 首次加载时获取数据
  useEffect(() => {
    fetchCategoryList();
  }, []);
  // 处理分页变化
  const handleTableChange = (paginationParams: any) => {
    fetchCategoryList(paginationParams.current, paginationParams.pageSize);
  };

  // 处理添加分类
  const handleAddCategory = () => {
    setIsEdit(false);
    setCurrentCategory(null);
    form.resetFields();
    form.setFieldsValue({
      parentId: '0', // 设置默认父级为顶级
      type: '0',     // 设置默认类型为普通展示
      orderBy: '1',  // 设置默认排序为1
    });
    setModalVisible(true);
  };

  // 处理编辑分类
  const handleEditCategory = (record: API.CategoryType) => {
    setIsEdit(true);
    setCurrentCategory(record);
    form.setFieldsValue({
      name: record.name,
      type: record.type,
      parentId: record.parentId,
      orderBy: record.orderBy,
      remark: record.remark,
    });
    setModalVisible(true);
  };

  // 处理删除分类
  const handleDeleteCategory = async (id: string) => {
    try {
      const res = await deleteCategory(id);
      if (res.success) {
        message.success(intl.formatMessage({ id: 'friendLink.category.delete.success' }));
        fetchCategoryList(pagination.current, pagination.pageSize);
      }
    } catch (error) {
      console.error('Failed to delete category', error);
    }
  };

  // 显示删除确认框
  const showDeleteConfirm = (record: API.CategoryType) => {
    Modal.confirm({
      title: intl.formatMessage({ id: 'friendLink.category.delete.confirm.title' }),
      icon: <ExclamationCircleOutlined />,
      content: intl.formatMessage(
        { id: 'friendLink.category.delete.confirm.content' },
        { name: record.name }
      ),
      okText: intl.formatMessage({ id: 'common.confirm' }),
      okType: 'danger',
      cancelText: intl.formatMessage({ id: 'common.cancel' }),
      onOk() {
        handleDeleteCategory(record.id);
      },
    });
  };

  // 处理表单提交
  const handleModalSubmit = () => {
    form.validateFields().then(async (values) => {
      try {
        if (isEdit && currentCategory) {
          // 编辑模式
          const res = await updateCategory({
            ...values,
            id: currentCategory.id,
          });
          if (res.success) {
            message.success(intl.formatMessage({ id: 'friendLink.category.update.success' }));
            setModalVisible(false);
            fetchCategoryList(pagination.current, pagination.pageSize);
          }
        } else {
          // 新增模式
          const res = await addCategory(values);
          if (res.success) {
            message.success(intl.formatMessage({ id: 'friendLink.category.add.success' }));
            setModalVisible(false);
            fetchCategoryList(pagination.current, pagination.pageSize);
          }
        }
      } catch (error) {
        console.error('Submit failed', error);
      }
    });
  };

  // 渲染分类类型标签
  const renderCategoryType = (type: string) => {
    const color = type === '1' ? 'blue' : 'default';
    return (
      <Tag color={color}>
        {getCategoryTypeText(type)}
      </Tag>
    );
  };

  // 表格列定义
  const columns = [
    {
      title: intl.formatMessage({ id: 'friendLink.category.name' }),
      dataIndex: 'name',
      key: 'name',
    },
    {
      title: intl.formatMessage({ id: 'friendLink.category.type' }),
      dataIndex: 'type',
      key: 'type',
      render: (type: string) => renderCategoryType(type),
    },
    {
      title: intl.formatMessage({ id: 'friendLink.category.sort' }),
      dataIndex: 'orderBy',
      key: 'orderBy',
      width: 100,
    },
    {
      title: intl.formatMessage({ id: 'friendLink.category.form.remark' }),
      dataIndex: 'remark',
      key: 'remark',
      width: 200,
      ellipsis: true,
    },
    {
      title: intl.formatMessage({ id: 'friendLink.category.operation' }),
      key: 'operation',
      width: 150,
      render: (_: any, record: API.CategoryType) => (
        <Space size="middle">
          <Button type="link" onClick={() => handleEditCategory(record)}>
            {intl.formatMessage({ id: 'friendLink.category.edit' })}
          </Button>
          <Button type="link" danger onClick={() => showDeleteConfirm(record)}>
            {intl.formatMessage({ id: 'friendLink.category.delete' })}
          </Button>
        </Space>
      ),
    },
  ];

  return (
    <div className="common-container">
        <div className="filter-action-row">
        <div></div>
          <div className="right-buttons">
            <Button
              type="primary"
              ghost
              icon={<PlusOutlined />}
              onClick={handleAddCategory}
            >
              {intl.formatMessage({ id: 'friendLink.category.add' })}
            </Button>
          </div>
        </div>

        <div className="content-area">
          <Table
            rowKey="id"
            columns={columns}
            dataSource={categoryData}
            loading={loading}
            pagination={pagination}
            onChange={handleTableChange}
          />
        </div>

      {/* 新增/编辑分类模态框 */}
      <Modal
        title={
          isEdit
            ? intl.formatMessage({ id: 'friendLink.category.form.title.edit' })
            : intl.formatMessage({ id: 'friendLink.category.form.title.add' })
        }
        visible={modalVisible}
        onOk={handleModalSubmit}
        onCancel={() => setModalVisible(false)}
        destroyOnClose
      >
        <Form
          form={form}
          layout="vertical"
        >
          <Form.Item
            name="name"
            label={intl.formatMessage({ id: 'friendLink.category.form.name' })}
            rules={[{
              required: true,
              message: intl.formatMessage({ id: 'friendLink.category.form.name.required' })
            }]}
          >
            <Input placeholder={intl.formatMessage({ id: 'friendLink.category.form.name.placeholder' })} />
          </Form.Item>

          <Form.Item
            name="type"
            label={intl.formatMessage({ id: 'friendLink.category.form.type' })}
            rules={[{
              required: true,
              message: intl.formatMessage({ id: 'friendLink.category.form.type.required' })
            }]}
          >
            <Select placeholder={intl.formatMessage({ id: 'friendLink.category.form.type.placeholder' })}>
              {categoryTypeOptions.map((option) => (
                <Option key={option.value} value={option.value}>
                  {option.label}
                </Option>
              ))}
            </Select>
          </Form.Item>

          {/* 父级分类项，已完全隐藏 */}
          <Form.Item name="parentId" hidden initialValue="0">
            <Input />
          </Form.Item>

          <Form.Item
            name="orderBy"
            label={intl.formatMessage({ id: 'friendLink.category.form.sort' })}
            rules={[{
              required: true,
              message: intl.formatMessage({ id: 'friendLink.category.form.sort.required' })
            }]}
          >
            <Input
              type="number"
              placeholder={intl.formatMessage({ id: 'friendLink.category.form.sort.placeholder' })}
            />
          </Form.Item>

          <Form.Item
            name="remark"
            label={intl.formatMessage({ id: 'friendLink.category.form.remark' })}
            rules={[{
              required: true,
              message: intl.formatMessage({ id: 'friendLink.category.form.remark.required' })
            }]}
          >
            <TextArea
              rows={4}
              placeholder={intl.formatMessage({ id: 'friendLink.category.form.remark.placeholder' })}
            />
          </Form.Item>
        </Form>
      </Modal>
    </div>
  );
};

export default FriendLinkCategory;