import { useEffect, useRef, useState } from 'react';
import { Drawer, Form, Input, InputNumber, Radio, Button, Space, Card } from 'antd';
import { App } from 'antd';
import { getRole, createRole, updateRole } from '@/api/system/role';
import type { SystemRole } from '@/api/system/role';
import { useTranslation } from 'react-i18next';

const DEFAULT_FORM = { sort: 0, status: 0 };

interface RoleDrawerProps {
  open: boolean;
  id: number | null;
  onSuccess: () => void;
  onClose: () => void;
}

const RoleDrawer: React.FC<RoleDrawerProps> = ({ open, id, onSuccess, onClose }) => {
  const { t } = useTranslation('system/role');
  const { t: tc } = useTranslation('common');
  const { message } = App.useApp();
  const [form] = Form.useForm();
  const [confirmLoading, setConfirmLoading] = useState(false);
  // 保留服务端原始字段，避免编辑时丢掉未在表单里出现的字段
  const originData = useRef<Partial<SystemRole>>({});
  const isEdit = id != null;

  useEffect(() => {
    if (open) {
      form.resetFields();
      originData.current = {};
      if (id) {
        getRole(id).then(({ data }) => {
          originData.current = { ...data };
          form.setFieldsValue(data);
        }).catch(() => { });
      } else {
        form.setFieldsValue(DEFAULT_FORM);
      }
    }
  }, [open, id, form]);

  const handleOk = async () => {
    let values: SystemRole;
    try { values = await form.validateFields(); } catch { return; }
    setConfirmLoading(true);
    try {
      const payload = { ...originData.current, ...values, ...(id != null ? { id } : {}) } as SystemRole;
      if (isEdit) {
        await updateRole(payload);
        message.success(tc('success'));
      } else {
        await createRole(payload);
        message.success(tc('success'));
      }
      onSuccess();
    } finally {
      setConfirmLoading(false);
    }
  };

  return (
    <Drawer
      title={isEdit ? t('editTitle') : t('addTitle')}
      open={open}
      onClose={onClose}
      destroyOnHidden={true}
      size={'15%'}
      closable={{ placement: 'end' }}
      mask={{ closable: false }}
      styles={{ body: { background: '#f5f5f5' } }}
      footer={
        <Space style={{ float: 'right' }}>
          <Button onClick={onClose}>{tc('cancel')}</Button>
          <Button type="primary" loading={confirmLoading} onClick={handleOk}>
            {tc('confirm')}
          </Button>
        </Space>
      }
    >
      <Card style={{ border: 'none' }}>
        <Form form={form} layout="vertical" initialValues={DEFAULT_FORM} autoComplete="off">
          <Form.Item
            name="name"
            label={t('name')}
            rules={[{ required: true, message: t('namePlaceholder') }]}
          >
            <Input placeholder={t('namePlaceholder')} />
          </Form.Item>

          <Form.Item
            name="code"
            label={t('code')}
            rules={[{ required: true, message: t('codePlaceholder') }]}
          >
            <Input placeholder={t('codePlaceholder')} />
          </Form.Item>

          <Form.Item name="sort" label={t('sort')}>
            <InputNumber min={0} style={{ width: '100%' }} />
          </Form.Item>

          <Form.Item name="status" label={t('status')}>
            <Radio.Group>
              <Radio value={0}>{tc('enable')}</Radio>
              <Radio value={1}>{tc('disable')}</Radio>
            </Radio.Group>
          </Form.Item>

          <Form.Item name="remark" label={t('remark')}>
            <Input.TextArea rows={3} placeholder={t('remarkPlaceholder')} />
          </Form.Item>
        </Form>
      </Card>
    </Drawer>
  );
};

export default RoleDrawer;