import type { ReactNode } from 'react';
import { Link } from 'react-router';
import { Package } from 'lucide-react';
import { Card } from '@/components/ui/card';
import { InfoField } from './InfoField';
import { QuotationStatusBadge } from './StatusPill';
import type { QuotationData } from '@/api/generated/model/quotationData';
import {
  type Product,
  type Partner,
  type QuotationSetting,
  buildBidSummary,
  quotationTypeLabel,
} from '../../types';

const fmtYn = (b: boolean | null | undefined, yes: string, no: string) =>
  b == null ? '-' : b ? yes : no;

/** 헤더 정보 카드 컨테이너. ui/Card 의 넉넉한 기본 여백을 촘촘하게 덮어쓴다. */
function SectionCard({ title, children }: { title: string; children: ReactNode }) {
  return (
    <Card className="p-3 gap-2 rounded shadow-xs border-border/80">
      <span className="font-bold text-foreground text-[11px] border-b border-border pb-1 block font-sans">
        {title}
      </span>
      {children}
    </Card>
  );
}

type DrawerHeaderCardsProps = {
  quotation: QuotationData;
  partners: Partner[];
  quotationSettings: QuotationSetting[];
  /** 현재 선택 세션의 상품(없으면 상품 카드는 빈 상태). */
  currentProduct: Product | undefined;
};

export function DrawerHeaderCards({
  quotation,
  partners,
  quotationSettings,
  currentProduct,
}: DrawerHeaderCardsProps) {
  // Quotations DDL 표시값
  const q_name = quotation.name || '미지정';
  const q_number = quotation.number || 'EST-000000-0000';
  const q_round = quotation.round || 1;
  const q_end_time = quotation.end_time || '미지정';
  const q_manager_name = quotation.manager_name || '홍길동 파트너';
  const q_manager_email = quotation.manager_email || 'gildong@negodata.com';
  const q_memo = quotation.memo || '안내사항 없음';

  const bidSummaryObj = buildBidSummary(quotation, partners);
  const selectedSettingObj = quotationSettings.find((qs) => qs.qt_setting_id === quotation.qt_setting_id);

  // 상품 상세 패널 행(negowiz 협상대화의 상품 정보 대응). negodata 컬럼명: maker_name→manufacturer, min_order_quantity→moq.
  const productSpecRows = currentProduct
    ? [
        { label: '상품코드', value: currentProduct.code || '-' },
        { label: '단가', value: currentProduct.price != null ? `₩${Number(currentProduct.price).toLocaleString()}` : '-' },
        { label: '모델명', value: currentProduct.model_name || '-' },
        { label: '규격', value: currentProduct.spec || '-' },
        { label: '제조사', value: currentProduct.manufacturer || '-' },
        { label: '원산지', value: currentProduct.made_in || '-' },
        { label: 'MOQ', value: currentProduct.moq || '-' },
        { label: '리드타임', value: currentProduct.lead_time != null ? `${currentProduct.lead_time}일` : '-' },
        { label: 'VAT', value: fmtYn(currentProduct.vat_yn, '포함', '별도') },
        { label: '배송비', value: fmtYn(currentProduct.delivery_fee_yn, '포함', '별도') },
      ]
    : [];

  return (
    <div className="grid grid-cols-1 lg:grid-cols-2 gap-4 mt-4 text-xs font-mono">
      {/* 좌측 컬럼: 견적정보 + 진행상태 */}
      <div className="space-y-4">
        {/* Quotations */}
        <SectionCard title="견적 정보">
          <div className="grid grid-cols-2 gap-x-2 gap-y-1.5 font-mono text-muted-foreground">
            <InfoField label="견적명" value={q_name} valueClassName="font-sans" />
            <InfoField label="견적번호" value={q_number} />
            <InfoField label="유형" value={quotationTypeLabel(quotation.type)} />
            <InfoField label="차수" value={`${q_round}차`} />
            <InfoField label="견적상태" labelClassName="opacity-90 font-bold mb-1">
              <QuotationStatusBadge status={quotation.status} />
            </InfoField>
            <InfoField label="마감시각" value={q_end_time} />
            <InfoField label="담당자" value={`${q_manager_name} (${q_manager_email})`} valueClassName="font-sans" />
            <InfoField
              label="메모"
              value={q_memo}
              valueClassName="font-sans truncate block"
              title={q_memo || ''}
            />
          </div>
        </SectionCard>

        {/* Bid Summary */}
        <SectionCard title="견적 진행상태/결과">
          <div className="grid grid-cols-2 gap-x-2 gap-y-1.5 font-mono text-muted-foreground">
            <InfoField label="식별자" value={bidSummaryObj.bid_summary_id} />
            <InfoField label="진행/결과 상태" value={bidSummaryObj.status} />
            <InfoField label="반복횟수" value={`${bidSummaryObj.qt_iteration}회`} />
            <InfoField
              label="우선협상자 존재여부"
              value={bidSummaryObj.has_preferred ? '존재' : '미존재'}
              valueClassName={bidSummaryObj.has_preferred ? 'text-emerald-600 font-bold' : undefined}
            />
            <InfoField
              label="우선협상자명"
              value={bidSummaryObj.preferred_sp_name}
              className="col-span-2"
              valueClassName="font-sans"
            />
            <InfoField label="동가입찰정보" className="col-span-2">
              <code className="text-foreground font-semibold bg-muted/60 p-1 rounded text-[10px] block overflow-x-auto whitespace-pre">
                {bidSummaryObj.equal_data}
              </code>
            </InfoField>
          </div>
        </SectionCard>
      </div>

      {/* 우측 컬럼: 상품정보 + 세팅 */}
      <div className="space-y-4">
        {/* 상품 정보 (협상 대상 상품) */}
        <SectionCard title="상품 정보">
          {currentProduct ? (
            <div className="flex gap-4">
              <div className="h-24 w-24 shrink-0 rounded-md border border-border bg-background overflow-hidden flex items-center justify-center">
                {currentProduct.image_url ? (
                  <img
                    src={currentProduct.image_url}
                    alt={currentProduct.name || '상품'}
                    className="h-full w-full object-cover"
                  />
                ) : (
                  <Package size={28} className="text-muted-foreground/50" />
                )}
              </div>
              <div className="flex-1 min-w-0">
                <Link
                  to={`/products?detail=${currentProduct.id}`}
                  className="text-foreground font-bold font-sans text-[12px] mb-2 truncate block hover:text-primary hover:underline"
                  title={`${currentProduct.name || ''} — 상품 상세로 이동`}
                >
                  {currentProduct.name || '-'}
                </Link>
                <div className="grid grid-cols-2 lg:grid-cols-3 gap-x-3 gap-y-1.5 font-mono text-muted-foreground">
                  {productSpecRows.map((r) => (
                    <InfoField
                      key={r.label}
                      label={r.label}
                      value={r.value}
                      valueClassName="font-sans truncate block"
                      title={r.value}
                    />
                  ))}
                </div>
              </div>
            </div>
          ) : (
            <div className="text-muted-foreground py-6 text-center">상품 정보가 비어있습니다.</div>
          )}
        </SectionCard>

        {/* Quotation Settings */}
        <SectionCard title="견적 세팅">
          {selectedSettingObj ? (
            <div className="grid grid-cols-2 gap-x-2 gap-y-1.5 font-mono text-muted-foreground">
              <InfoField
                label="목표 마진율"
                value={selectedSettingObj.target_margin}
                valueClassName="font-bold text-emerald-600 dark:text-emerald-400 font-sans"
              />
              <InfoField label="앵커링 설정 값" value={selectedSettingObj.anchoring_value} valueClassName="font-sans" />
              <InfoField
                label="카드 사용 횟수"
                value={selectedSettingObj.card_use_count}
                className="col-span-2 col-start-1"
              />
            </div>
          ) : (
            <div className="text-muted-foreground py-6 text-center">적용된 견적 세팅이 비어있습니다.</div>
          )}
        </SectionCard>
      </div>
    </div>
  );
}