import { Settings, Plus } from 'lucide-react';
import { useOverlayRouter } from '@/lib/useOverlayRouter';
import { PageContainer } from '@/components/layout/PageContainer';
import { PageToolbar, SearchInput } from '@/components/layout/PageToolbar';
import { TablePagination } from '@/components/ui/table-pagination';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { useServerList } from '@/lib/useServerList';
import { useQuotations } from '@/features/quotations/hooks/useQuotations';
import { useGetQuotation } from '@/api/generated/quotation/quotation';
import { QuotationTable } from '@/features/quotations/components/QuotationTable';
import { QuotationDetailSheet } from '@/features/quotations/components/QuotationDetailSheet';
import { QuotationCreateModal } from '@/features/quotations/components/QuotationCreateModal';
import { QuotationSettingsModal } from '@/features/quotations/components/QuotationSettingsModal';
import { QUOTATION_STATUS_OPTIONS, QUOTATION_TYPE_OPTIONS } from '@/features/quotations/types';
import type { ListQuotationsParams } from '@/api/generated/model/listQuotationsParams';

export default function QuotationPage() {
  // 검색/상태·유형 필터/페이지 상태 → 서버 쿼리 파라미터로 변환.
  const list = useServerList({ pageSize: 10, initialFilters: { status: 'ALL', type: 'ALL' } });
  const statusFilter = list.filters.status;
  const typeFilter = list.filters.type;
  const statusOptions = QUOTATION_STATUS_OPTIONS;
  const typeOptions = QUOTATION_TYPE_OPTIONS;
  const params: ListQuotationsParams = {
    search: list.debouncedSearch || undefined,
    status: statusFilter !== 'ALL' ? statusFilter : undefined,
    type: typeFilter !== 'ALL' ? typeFilter : undefined,
    page: list.page,
    size: list.pageSize,
  };

  const {
    products,
    partners,
    cards,
    quotations,
    total,
    quotationSettings,
    closeQuotation,
    addSetting,
    deleteSetting,
    createQuotation,
  } = useQuotations(params);
  const totalPages = list.totalPages(total);

  const overlay = useOverlayRouter(['detail', 'create', 'settings']);
  const detailId = overlay.get('detail');
  const isCreateOpen = overlay.has('create');
  const isSettingsOpen = overlay.has('settings');

  // 상세 요약은 리스트에서 find 하지 않고 단건 API 로 받아온다(딥링크 시 리스트 의존 제거).
  const detailQuery = useGetQuotation(detailId ?? '', { query: { enabled: !!detailId } });
  const activeQuotation = detailQuery.data?.quotation ?? null;

  return (
    <PageContainer>
      <PageToolbar
        actions={
          <>
            <button
              id="quotation-settings-btn"
              onClick={() => overlay.open('settings')}
              className="flex items-center gap-2 px-3 py-2.5 bg-muted text-foreground border border-border text-xs font-semibold rounded hover:bg-muted-foreground/10 cursor-pointer transition-colors"
            >
              <Settings size={14} />
              <span>견적 세팅</span>
            </button>

            <button
              id="quotation-create-btn"
              onClick={() => overlay.open('create')}
              className="flex items-center gap-2 px-4 py-2.5 bg-primary text-primary-foreground text-xs font-bold rounded hover:opacity-95 cursor-pointer transition-colors"
            >
              <Plus size={15} />
              <span>신규 견적 등록</span>
            </button>
          </>
        }
      >
        <SearchInput
          id="quotation-search"
          value={list.search}
          onChange={(e) => list.setSearch(e.target.value)}
          onKeyDown={(e) => e.key === 'Enter' && list.submitSearch()}
          placeholder="견적명 또는 견적 번호로 검색..."
        />

        <div className="grid grid-cols-2 gap-2">
          <Select value={statusFilter} onValueChange={(v) => list.setFilter('status', v as string)}>
            <SelectTrigger id="quotation-status-filter" className="font-bold">
              <SelectValue>
                {(value) =>
                  value === 'ALL'
                    ? '전체 견적상태'
                    : statusOptions.find((o) => String(o.value) === value)?.label ?? ''
                }
              </SelectValue>
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="ALL">전체 견적상태</SelectItem>
              {statusOptions.map((o) => (
                <SelectItem key={o.value} value={String(o.value)}>{o.label}</SelectItem>
              ))}
            </SelectContent>
          </Select>

          <Select value={typeFilter} onValueChange={(v) => list.setFilter('type', v as string)}>
            <SelectTrigger id="quotation-type-filter">
              <SelectValue>
                {(value) =>
                  value === 'ALL'
                    ? '전체 유형'
                    : typeOptions.find((o) => String(o.value) === value)?.label ?? ''
                }
              </SelectValue>
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="ALL">전체 유형</SelectItem>
              {typeOptions.map((o) => (
                <SelectItem key={o.value} value={String(o.value)}>{o.label}</SelectItem>
              ))}
            </SelectContent>
          </Select>
        </div>
      </PageToolbar>

      <QuotationTable
        data={quotations}
        products={products}
        onOpenDetail={(id) => overlay.open('detail', id)}
        footer={
          <TablePagination
            page={list.page}
            totalPages={totalPages}
            totalCount={total}
            pageSize={list.pageSize}
            onPageChange={list.setPage}
            label="전체 견적"
            unit="건"
          />
        }
      />

      {activeQuotation && (
        <QuotationDetailSheet
          key={activeQuotation.qt_id}
          quotation={activeQuotation}
          onCloseQuotation={closeQuotation}
          onClose={overlay.close}
        />
      )}

      {isCreateOpen && (
        <QuotationCreateModal
          open
          products={products}
          partners={partners}
          cards={cards}
          quotationSettings={quotationSettings}
          onCreate={async (input) => {
            const qtId = await createQuotation(input);
            if (qtId) overlay.open('detail', qtId); // 생성 완료된 실제 qt_id 로 상세(협상현황) 자동 오픈
            return !!qtId;
          }}
          onClose={overlay.close}
        />
      )}

      {isSettingsOpen && (
        <QuotationSettingsModal
          open
          settings={quotationSettings}
          onAdd={addSetting}
          onDelete={deleteSetting}
          onClose={overlay.close}
        />
      )}
    </PageContainer>
  );
}