"use client";

// 구매관리 > 견적요청서관리 — wace salesMng/quotationRequestList.jsp 1:1
// 검색: 년도 / 프로젝트번호 / 견적요청서No / 공급업체 / 메일발송 / 작성자 / 제품구분
// 그리드: 13컬럼 (견적번호 / 요청번호 / 구매유형 / 프로젝트번호 / 주문유형 / 제품구분 / 품번 / 품명 / 공급업체 / 견적요청서(파일) / 메일발송 / 수신견적서 / 작성자)
// 액션: 메일발송 / 삭제 / 조회

import React, { useCallback, useEffect, useMemo, useState } from "react";
import { Input } from "@/components/ui/input";
import { Button } from "@/components/ui/button";
import { Mail, Trash2 } from "lucide-react";
import { toast } from "sonner";
import { DataGrid, DataGridColumn } from "@/components/common/DataGrid";
import { SmartSelect, SmartSelectOption } from "@/components/common/SmartSelect";
import { CompactFilterBar, CompactFilterField } from "@/components/common/CompactFilterBar";
import { PageHeader } from "@/components/common/PageHeader";
import { apiClient } from "@/lib/api/client";
import { purchaseApi, PurchaseListFilter, OptionItem, getYearOptions } from "@/lib/api/purchase";
import { exportToExcel } from "@/lib/utils/excelExport";

const PARENT_PRODUCT = "0000001";

const MAIL_SEND_OPTS: SmartSelectOption[] = [
  { code: "N", label: "미발송" },
  { code: "Y", label: "발송" },
];

const EMPTY_FILTER: PurchaseListFilter = {
  year: String(new Date().getFullYear()),
  project_no: "", proposal_no: "", partner_objid: "",
  mail_send_yn: "", writer: "", product_cd: "",
  page: 1, page_size: 50,
};

export default function QuoteRequestPage() {
  const [rows, setRows] = useState<any[]>([]);
  const [total, setTotal] = useState(0);
  const [loading, setLoading] = useState(false);
  const [filter, setFilter] = useState<PurchaseListFilter>(EMPTY_FILTER);
  const [checkedIds, setCheckedIds] = useState<string[]>([]);

  const [productOpts, setProductOpts] = useState<SmartSelectOption[]>([]);
  const [supplierOpts, setSupplierOpts] = useState<OptionItem[]>([]);
  const [userOpts, setUserOpts] = useState<OptionItem[]>([]);

  const yearOpts = useMemo(() => getYearOptions(), []);

  const fetchList = useCallback(async (override?: Partial<PurchaseListFilter>) => {
    setLoading(true);
    try {
      const f = { ...filter, ...override };
      const res = await purchaseApi.listQuotationRequest(f);
      setRows(res.rows ?? []);
      setTotal(res.totalCount ?? 0);
    } catch (e: any) {
      toast.error(e?.response?.data?.message ?? e?.message ?? "조회 실패");
    } finally {
      setLoading(false);
    }
  }, [filter]);

  useEffect(() => {
    let dead = false;
    (async () => {
      try {
        const [p, s, u] = await Promise.all([
          apiClient.get(`/sales/codes/${PARENT_PRODUCT}`),
          purchaseApi.listVendors(),
          purchaseApi.listUsers(),
        ]);
        if (dead) return;
        setProductOpts(p.data?.data ?? []);
        setSupplierOpts(s);
        setUserOpts(u);
      } catch { /* skip */ }
    })();
    fetchList(EMPTY_FILTER);
    return () => { dead = true; };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  const gridRows = useMemo(() => rows.map((r, i) => ({ ...r, id: r.objid ?? `q_${i}` })), [rows]);

  const GRID_COLUMNS: DataGridColumn[] = useMemo(() => ([
    { key: "quotation_request_no",  label: "견적번호",     width: "w-[140px]", align: "center" },
    { key: "request_mng_no",        label: "요청번호",     width: "w-[140px]", align: "center" },
    { key: "purchase_type_name",    label: "구매유형",     width: "w-[115px]", align: "center" },
    { key: "project_number",        label: "프로젝트번호", width: "w-[140px]", align: "center" },
    { key: "order_type_name",       label: "주문유형",     width: "w-[115px]", align: "center" },
    { key: "product_name_title",    label: "제품구분",     width: "w-[115px]", align: "center" },
    { key: "part_no",               label: "품번",         width: "w-[150px]" },
    { key: "part_name",             label: "품명",         minWidth: "min-w-[180px]" },
    { key: "vendor_name",           label: "공급업체",     minWidth: "min-w-[150px]" },
    { key: "quotation_file",        label: "견적요청서",   width: "w-[115px]", align: "center", renderType: "clip" },
    { key: "mail_send_date_title",  label: "메일발송",     width: "w-[125px]", align: "center" },
    { key: "attach_file_cnt",       label: "수신견적서",   width: "w-[115px]", align: "center" },
    { key: "writer_name",           label: "작성자",       width: "w-[115px]", align: "center" },
  ]), []);

  const summary = useMemo(() => [
    { label: "전체 건수", value: total.toLocaleString(), suffix: "건" },
    { label: "선택", value: checkedIds.length.toLocaleString(), suffix: "건" },
  ], [total, checkedIds]);

  const handleSearch = () => { setFilter(f => ({ ...f, page: 1 })); fetchList({ page: 1 }); };
  const handleReset  = () => { setFilter(EMPTY_FILTER); fetchList(EMPTY_FILTER); };

  return (
    <div className="flex h-full flex-col overflow-hidden p-2 gap-2">
      <PageHeader
        loading={loading} onSearch={handleSearch} onReset={handleReset}
        actions={<>
          <Button size="sm" variant="outline" className="h-8 gap-1 px-2 text-xs"
                  disabled={checkedIds.length === 0}
                  onClick={() => toast.info("메일발송 기능 준비 중입니다.")}>
            <Mail className="h-3.5 w-3.5" /> 메일발송
          </Button>
          <Button size="sm" variant="destructive" className="h-8 gap-1 px-2 text-xs"
                  disabled={checkedIds.length === 0}
                  onClick={() => toast.info("삭제 기능 준비 중입니다.")}>
            <Trash2 className="h-3.5 w-3.5" /> 삭제
          </Button>
        </>}
      />
      <CompactFilterBar totalText={<>총 {total.toLocaleString()}건</>}>
        <CompactFilterField label="년도" width={100}>
          <SmartSelect options={yearOpts} value={filter.year ?? ""}
                       onValueChange={(v) => setFilter({ ...filter, year: v })} />
        </CompactFilterField>
        <CompactFilterField label="프로젝트번호" width={170}>
          <Input value={filter.project_no ?? ""}
                 onChange={(e) => setFilter({ ...filter, project_no: e.target.value })} />
        </CompactFilterField>
        <CompactFilterField label="견적요청서No" width={150}>
          <Input value={filter.proposal_no ?? ""}
                 onChange={(e) => setFilter({ ...filter, proposal_no: e.target.value })} />
        </CompactFilterField>
        <CompactFilterField label="공급업체" width={180}>
          <SmartSelect options={supplierOpts} value={filter.partner_objid ?? ""}
                       onValueChange={(v) => setFilter({ ...filter, partner_objid: v })} />
        </CompactFilterField>
        <CompactFilterField label="메일발송" width={120}>
          <SmartSelect options={MAIL_SEND_OPTS} value={filter.mail_send_yn ?? ""}
                       onValueChange={(v) => setFilter({ ...filter, mail_send_yn: v })} />
        </CompactFilterField>
        <CompactFilterField label="작성자" width={150}>
          <SmartSelect options={userOpts} value={filter.writer ?? ""}
                       onValueChange={(v) => setFilter({ ...filter, writer: v })} />
        </CompactFilterField>
        <CompactFilterField label="제품구분" width={130}>
          <SmartSelect options={productOpts} value={filter.product_cd ?? ""}
                       onValueChange={(v) => setFilter({ ...filter, product_cd: v })} />
        </CompactFilterField>
      </CompactFilterBar>

      <DataGrid
        columns={GRID_COLUMNS}
        data={gridRows}
        loading={loading}
        showCheckbox
        checkedIds={checkedIds}
        onCheckedChange={setCheckedIds}
        emptyMessage={loading ? "조회 중..." : "데이터가 없습니다"}
        gridId="purchase-quote-request"
        pageSizeOptions={[10, 15, 20, 50, 100]}
        paginationStyle="range"
        serverPaging
        serverPage={filter.page ?? 1}
        serverPageSize={filter.page_size ?? 50}
        serverTotalItems={total}
        onPageChange={(p) => { setFilter(f => ({ ...f, page: p })); fetchList({ page: p }); }}
        onPageSizeChange={(n) => { setFilter(f => ({ ...f, page: 1, page_size: n })); fetchList({ page: 1, page_size: n }); }}
        showColumnSettings
        summaryStats={summary}
        onRefresh={() => fetchList()}
        onDownload={() => {
          if (gridRows.length === 0) { toast.info("내보낼 데이터가 없습니다."); return; }
          const exportRows = gridRows.map((r: any) => {
            const out: Record<string, any> = {};
            GRID_COLUMNS.forEach((c) => { out[c.label] = r[c.key] ?? ""; });
            return out;
          });
          exportToExcel(exportRows, "견적요청서관리.xlsx", "견적요청서");
        }}
        showChart
      />
    </div>
  );
}
