import { useRef, useState } from 'react';
import { Radio, Switch, Tag, message } from 'antd';
import {
  ModalForm, ProForm, ProFormSelect, ProFormText, ProFormTextArea,
  ProTable, type ActionType, type ProColumns,
} from '@ant-design/pro-components';
import PageContainer from '@/components/common/PageContainer';
import PermissionButton from '@/components/common/PermissionButton';
import { ruleApi, ExceptionCodeResp, ExceptionCodeSaveReq } from '@/api/rule';

const DIRECTION_COLOR = { PLUS: 'success', MINUS: 'error' } as const;

const CATEGORY_OPTIONS = [
  { value: 'BONUS', label: '보너스' },
  { value: 'PENALTY', label: '패널티' },
  { value: 'ADJUSTMENT', label: '조정' },
  { value: 'OTHER', label: '기타' },
];

export default function ExceptionCodeList() {
  const actionRef = useRef<ActionType>();
  const [modal, setModal] = useState<{ open: boolean; editCode?: string }>({ open: false });
  const [editRecord, setEditRecord] = useState<ExceptionCodeResp | null>(null);

  const openCreate = () => {
    setEditRecord(null);
    setModal({ open: true });
  };

  const openEdit = (record: ExceptionCodeResp) => {
    setEditRecord(record);
    setModal({ open: true, editCode: record.exceptionCode });
  };

  const onSubmit = async (v: any) => {
    const req: ExceptionCodeSaveReq = {
      ...v,
      autoCalcYn: v.autoCalcYn ? 'Y' : 'N',
      approvalRequired: v.approvalRequired ? 'Y' : 'N',
      taxIncluded: v.taxIncluded ? 'Y' : 'N',
      isActive: v.isActive ? 'Y' : 'N',
    };
    if (modal.editCode) {
      await ruleApi.updateExceptionCode(modal.editCode, req);
      message.success('수정 완료');
    } else {
      await ruleApi.createExceptionCode(req);
      message.success('등록 완료');
    }
    setModal({ open: false });
    actionRef.current?.reload();
    return true;
  };

  const columns: ProColumns<ExceptionCodeResp>[] = [
    { title: '예외코드', dataIndex: 'exceptionCode', width: 120, search: false,
      render: (_, r) => <strong>{r.exceptionCode}</strong> },
    { title: '예외명', dataIndex: 'exceptionName', width: 160, search: false },
    { title: '카테고리', dataIndex: 'category', width: 110, search: false },
    {
      title: '방향', dataIndex: 'direction', width: 80, align: 'center', search: false,
      render: (_, r) => <Tag color={DIRECTION_COLOR[r.direction as 'PLUS' | 'MINUS'] ?? 'default'}>
        {r.direction === 'PLUS' ? '가산 (+)' : '차감 (-)'}</Tag>,
    },
    {
      title: '자동계산', dataIndex: 'autoCalcYn', width: 90, align: 'center', search: false,
      render: (_, r) => r.autoCalcYn === 'Y' ? <Tag color="processing">자동</Tag> : <Tag>수동</Tag>,
    },
    {
      title: '승인 필요', dataIndex: 'approvalRequired', width: 90, align: 'center', search: false,
      render: (_, r) => r.approvalRequired === 'Y' ? <Tag color="warning">필요</Tag> : <Tag>불요</Tag>,
    },
    {
      title: '과세', dataIndex: 'taxIncluded', width: 80, align: 'center', search: false,
      render: (_, r) => r.taxIncluded === 'Y' ? <Tag color="success">과세</Tag> : <Tag>비과세</Tag>,
    },
    { title: '설명', dataIndex: 'description', ellipsis: true, search: false },
    {
      title: '활성', dataIndex: 'isActive', width: 70, align: 'center', search: false,
      render: (_, r) => <Tag color={r.isActive === 'Y' ? 'success' : 'default'}>
        {r.isActive === 'Y' ? 'Y' : 'N'}</Tag>,
    },
    {
      title: '액션', valueType: 'option', width: 100, fixed: 'right',
      render: (_, r) => [
        <PermissionButton key="edit" menuCode="RULE_EXCEPTION_CODE" permCode="UPDATE" size="small" type="link"
          onClick={() => openEdit(r)}>수정</PermissionButton>,
      ],
    },
  ];

  return (
    <PageContainer title="예외 코드" description="가산/차감/승인/세금 정책 마스터 (예외금액 원장에서 사용)">
      <ProTable<ExceptionCodeResp>
        actionRef={actionRef}
        rowKey="exceptionCode"
        columns={columns}
        search={false}
        request={async () => {
          const list = await ruleApi.exceptionCodes();
          return { data: list, total: list.length, success: true };
        }}
        pagination={{ pageSize: 50, showTotal: (t) => `총 ${t}건` }}
        options={{ density: false, fullScreen: true, reload: true, setting: true }}
        toolBarRender={() => [
          <PermissionButton key="create" menuCode="RULE_EXCEPTION_CODE" permCode="CREATE" type="primary"
            onClick={openCreate}>+ 예외코드 등록</PermissionButton>,
        ]}
        dateFormatter="string"
      />

      <ModalForm
        title={modal.editCode ? '예외코드 수정' : '예외코드 등록'}
        open={modal.open}
        onOpenChange={(o) => !o && setModal({ open: false })}
        width={580}
        layout="vertical"
        key={modal.editCode ?? 'new'}
        initialValues={editRecord ? {
          ...editRecord,
          autoCalcYn: editRecord.autoCalcYn === 'Y',
          approvalRequired: editRecord.approvalRequired === 'Y',
          taxIncluded: editRecord.taxIncluded === 'Y',
          isActive: editRecord.isActive === 'Y',
        } : { direction: 'PLUS', autoCalcYn: false, approvalRequired: false, taxIncluded: false, isActive: true }}
        onFinish={onSubmit}
        submitter={{ searchConfig: { submitText: modal.editCode ? '수정' : '등록', resetText: '취소' } }}
        modalProps={{ destroyOnClose: true, maskClosable: false }}
      >
        <ProForm.Group>
          <ProFormText
            name="exceptionCode" label="예외코드" rules={[{ required: true }]}
            width="md" placeholder="EX001"
            disabled={!!modal.editCode}
          />
          <ProFormText
            name="exceptionName" label="예외명" rules={[{ required: true }]}
            width="md" placeholder="특별 가산금"
          />
        </ProForm.Group>
        <ProForm.Group>
          <ProFormSelect
            name="category" label="카테고리" width="md"
            options={CATEGORY_OPTIONS}
          />
          <ProForm.Item name="direction" label="방향" rules={[{ required: true }]}>
            <Radio.Group>
              <Radio value="PLUS">가산 (+)</Radio>
              <Radio value="MINUS">차감 (-)</Radio>
            </Radio.Group>
          </ProForm.Item>
        </ProForm.Group>
        <ProForm.Group>
          <ProForm.Item name="autoCalcYn" label="자동계산" valuePropName="checked">
            <Switch checkedChildren="자동" unCheckedChildren="수동" />
          </ProForm.Item>
          <ProForm.Item name="approvalRequired" label="승인 필요" valuePropName="checked" style={{ marginLeft: 32 }}>
            <Switch checkedChildren="필요" unCheckedChildren="불요" />
          </ProForm.Item>
          <ProForm.Item name="taxIncluded" label="과세" valuePropName="checked" style={{ marginLeft: 32 }}>
            <Switch checkedChildren="과세" unCheckedChildren="비과세" />
          </ProForm.Item>
          <ProForm.Item name="isActive" label="활성" valuePropName="checked" style={{ marginLeft: 32 }}>
            <Switch checkedChildren="활성" unCheckedChildren="비활성" />
          </ProForm.Item>
        </ProForm.Group>
        <ProFormTextArea name="description" label="설명" placeholder="예외 코드 상세 설명" />
      </ModalForm>
    </PageContainer>
  );
}