"use client";

import * as React from "react";
import { type Table } from "@tanstack/react-table";
import { Download, RefreshCw, Plus, Lock, LockOpen } from "lucide-react";

import { Button } from "@/components/ui/button";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
} from "@/components/ui/alert-dialog";
import { toast } from "sonner";
import { RfqsLastView } from "@/db/schema";
import { CreateGeneralRfqDialog } from "./create-general-rfq-dialog";
import { sealMultipleRfqs, unsealMultipleRfqs } from "../service";

interface RfqTableToolbarActionsProps {
  table: Table<RfqsLastView>;
  onRefresh?: () => void;
  rfqCategory?: "general" | "itb" | "rfq";
}

export function RfqTableToolbarActions({
  table,
  onRefresh,
  rfqCategory = "itb",
}: RfqTableToolbarActionsProps) {
  const [isExporting, setIsExporting] = React.useState(false);
  const [isSealing, setIsSealing] = React.useState(false);
  const [sealDialogOpen, setSealDialogOpen] = React.useState(false);
  const [sealAction, setSealAction] = React.useState<"seal" | "unseal">("seal");

  const selectedRows = table.getFilteredSelectedRowModel().rows;
  const selectedRfqIds = selectedRows.map(row => row.original.id);
  
  // 선택된 항목들의 밀봉 상태 확인
  const sealedCount = selectedRows.filter(row => row.original.rfqSealedYn).length;
  const unsealedCount = selectedRows.filter(row => !row.original.rfqSealedYn).length;

  const handleSealAction = React.useCallback(async (action: "seal" | "unseal") => {
    setSealAction(action);
    setSealDialogOpen(true);
  }, []);

  const confirmSealAction = React.useCallback(async () => {
    setIsSealing(true);
    try {
      const result = sealAction === "seal" 
        ? await sealMultipleRfqs(selectedRfqIds)
        : await unsealMultipleRfqs(selectedRfqIds);

      if (result.success) {
        toast.success(result.message);
        table.toggleAllRowsSelected(false); // 선택 해제
        onRefresh?.(); // 데이터 새로고침
      } else {
        toast.error(result.error);
      }
    } catch (error) {
      toast.error("작업 중 오류가 발생했습니다.");
    } finally {
      setIsSealing(false);
      setSealDialogOpen(false);
    }
  }, [sealAction, selectedRfqIds, table, onRefresh]);

  const handleExportCSV = React.useCallback(async () => {
    setIsExporting(true);
    try {
      const data = table.getFilteredRowModel().rows.map((row) => {
        const original = row.original;
        return {
          "RFQ 코드": original.rfqCode || "",
          "상태": original.status || "",
          "밀봉여부": original.rfqSealedYn ? "밀봉" : "미밀봉",
          "프로젝트 코드": original.projectCode || "",
          "프로젝트명": original.projectName || "",
          "자재코드": original.itemCode || "",
          "자재명": original.itemName || "",
          "패키지 번호": original.packageNo || "",
          "패키지명": original.packageName || "",
          "구매담당자": original.picUserName || original.picName || "",
          "엔지니어링 담당": original.engPicName || "",
          "발송일": original.rfqSendDate ? new Date(original.rfqSendDate).toLocaleDateString("ko-KR") : "",
          "마감일": original.dueDate ? new Date(original.dueDate).toLocaleDateString("ko-KR") : "",
          "업체수": original.vendorCount || 0,
          "Short List": original.shortListedVendorCount || 0,
          "견적접수": original.quotationReceivedCount || 0,
          "PR Items": original.prItemsCount || 0,
          "주요 Items": original.majorItemsCount || 0,
          "시리즈": original.series || "",
          "견적 유형": original.rfqType || "",
          "견적 제목": original.rfqTitle || "",
          "프로젝트 회사": original.projectCompany || "",
          "프로젝트 사이트": original.projectSite || "",
          "SM 코드": original.smCode || "",
          "PR 번호": original.prNumber || "",
          "PR 발행일": original.prIssueDate ? new Date(original.prIssueDate).toLocaleDateString("ko-KR") : "",
          "생성자": original.createdByUserName || "",
          "생성일": original.createdAt ? new Date(original.createdAt).toLocaleDateString("ko-KR") : "",
          "수정자": original.updatedByUserName || "",
          "수정일": original.updatedAt ? new Date(original.updatedAt).toLocaleDateString("ko-KR") : "",
        };
      });

      const fileName = `RFQ_목록_${new Date().toISOString().split("T")[0]}.csv`;
      exportTableToCSV({ data, filename: fileName });
    } catch (error) {
      console.error("Export failed:", error);
    } finally {
      setIsExporting(false);
    }
  }, [table]);

  const handleExportSelected = React.useCallback(async () => {
    setIsExporting(true);
    try {
      const selectedRows = table.getFilteredSelectedRowModel().rows;
      if (selectedRows.length === 0) {
        alert("선택된 항목이 없습니다.");
        return;
      }

      const data = selectedRows.map((row) => {
        const original = row.original;
        return {
          "RFQ 코드": original.rfqCode || "",
          "상태": original.status || "",
          "밀봉여부": original.rfqSealedYn ? "밀봉" : "미밀봉",
          "프로젝트 코드": original.projectCode || "",
          "프로젝트명": original.projectName || "",
          "자재코드": original.itemCode || "",
          "자재명": original.itemName || "",
          "패키지 번호": original.packageNo || "",
          "패키지명": original.packageName || "",
          "구매담당자": original.picUserName || original.picName || "",
          "엔지니어링 담당": original.engPicName || "",
          "발송일": original.rfqSendDate ? new Date(original.rfqSendDate).toLocaleDateString("ko-KR") : "",
          "마감일": original.dueDate ? new Date(original.dueDate).toLocaleDateString("ko-KR") : "",
          "업체수": original.vendorCount || 0,
          "Short List": original.shortListedVendorCount || 0,
          "견적접수": original.quotationReceivedCount || 0,
        };
      });

      const fileName = `RFQ_선택항목_${new Date().toISOString().split("T")[0]}.csv`;
      exportTableToCSV({ data, filename: fileName });
    } catch (error) {
      console.error("Export failed:", error);
    } finally {
      setIsExporting(false);
    }
  }, [table]);

  return (
    <>
      <div className="flex items-center gap-2">
        {onRefresh && (
          <Button
            variant="outline"
            size="sm"
            onClick={onRefresh}
            className="h-8 px-2 lg:px-3"
          >
            <RefreshCw className="mr-2 h-4 w-4" />
            새로고침
          </Button>
        )}

        {/* 견적 밀봉/해제 버튼 */}
        {selectedRfqIds.length > 0 && (
          <DropdownMenu>
            <DropdownMenuTrigger asChild>
              <Button
                variant="outline"
                size="sm"
                className="h-8 px-2 lg:px-3"
                disabled={isSealing}
              >
                <Lock className="mr-2 h-4 w-4" />
                견적 밀봉
              </Button>
            </DropdownMenuTrigger>
            <DropdownMenuContent align="end">
              <DropdownMenuItem 
                onClick={() => handleSealAction("seal")}
                disabled={unsealedCount === 0}
              >
                <Lock className="mr-2 h-4 w-4" />
                선택 항목 밀봉 ({unsealedCount}개)
              </DropdownMenuItem>
              <DropdownMenuItem 
                onClick={() => handleSealAction("unseal")}
                disabled={sealedCount === 0}
              >
                <LockOpen className="mr-2 h-4 w-4" />
                선택 항목 밀봉 해제 ({sealedCount}개)
              </DropdownMenuItem>
              <DropdownMenuSeparator />
              <div className="px-2 py-1.5 text-xs text-muted-foreground">
                전체 {selectedRfqIds.length}개 선택됨
              </div>
            </DropdownMenuContent>
          </DropdownMenu>
        )}

        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <Button
              variant="outline"
              size="sm"
              className="h-8 px-2 lg:px-3"
              disabled={isExporting}
            >
              <Download className="mr-2 h-4 w-4" />
              {isExporting ? "내보내는 중..." : "내보내기"}
            </Button>
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end">
            <DropdownMenuItem onClick={handleExportCSV}>
              전체 데이터 내보내기
            </DropdownMenuItem>
            <DropdownMenuItem 
              onClick={handleExportSelected}
              disabled={table.getFilteredSelectedRowModel().rows.length === 0}
            >
              선택한 항목 내보내기 ({table.getFilteredSelectedRowModel().rows.length}개)
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>

        {/* rfqCategory가 'general'일 때만 일반견적 생성 다이얼로그 표시 */}
        {rfqCategory === "general" && (
          <CreateGeneralRfqDialog onSuccess={onRefresh} />
        )}
      </div>

      {/* 밀봉 확인 다이얼로그 */}
      <AlertDialog open={sealDialogOpen} onOpenChange={setSealDialogOpen}>
        <AlertDialogContent>
          <AlertDialogHeader>
            <AlertDialogTitle>
              {sealAction === "seal" ? "견적 밀봉 확인" : "견적 밀봉 해제 확인"}
            </AlertDialogTitle>
            <AlertDialogDescription>
              {sealAction === "seal" 
                ? `선택한 ${unsealedCount}개의 견적을 밀봉하시겠습니까? 밀봉된 견적은 업체에서 수정할 수 없습니다.`
                : `선택한 ${sealedCount}개의 견적 밀봉을 해제하시겠습니까? 밀봉이 해제되면 업체에서 견적을 수정할 수 있습니다.`}
            </AlertDialogDescription>
          </AlertDialogHeader>
          <AlertDialogFooter>
            <AlertDialogCancel disabled={isSealing}>취소</AlertDialogCancel>
            <AlertDialogAction 
              onClick={confirmSealAction} 
              disabled={isSealing}
              className={sealAction === "seal" ? "bg-red-600 hover:bg-red-700" : ""}
            >
              {isSealing ? "처리 중..." : "확인"}
            </AlertDialogAction>
          </AlertDialogFooter>
        </AlertDialogContent>
      </AlertDialog>
    </>
  );
}

// CSV 내보내기 유틸리티 함수
function exportTableToCSV({ data, filename }: { data: any[]; filename: string }) {
  if (!data || data.length === 0) {
    console.warn("No data to export");
    return;
  }

  const headers = Object.keys(data[0]);
  const csvContent = [
    headers.join(","),
    ...data.map(row => 
      headers.map(header => {
        const value = row[header];
        // 값에 쉼표, 줄바꿈, 따옴표가 있으면 따옴표로 감싸기
        if (typeof value === "string" && (value.includes(",") || value.includes("\n") || value.includes('"'))) {
          return `"${value.replace(/"/g, '""')}"`;
        }
        return value;
      }).join(",")
    )
  ].join("\n");

  const blob = new Blob(["\uFEFF" + csvContent], { type: "text/csv;charset=utf-8;" });
  const link = document.createElement("a");
  link.href = URL.createObjectURL(blob);
  link.download = filename;
  link.click();
  URL.revokeObjectURL(link.href);
}