'use client';

/**
 * 자재투입 모달
 *
 * - FIFO 순위 표시
 * - 자재 테이블 (BOM 기준)
 * - 투입 등록 기능
 */

import { useState } from 'react';
import { Package } from 'lucide-react';
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from '@/components/ui/dialog';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import { Checkbox } from '@/components/ui/checkbox';
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from '@/components/ui/table';
import type { WorkOrder } from '../ProductionDashboard/types';
import type { MaterialInput } from './types';

// Mock 자재 데이터
const MOCK_MATERIALS: MaterialInput[] = [
  {
    id: '1',
    materialCode: 'KD-RM-001',
    materialName: 'SPHC-SD 1.6T',
    unit: 'KG',
    currentStock: 500,
    fifoRank: 1,
  },
  {
    id: '2',
    materialCode: 'KD-RM-002',
    materialName: 'EGI 1.55T',
    unit: 'KG',
    currentStock: 350,
    fifoRank: 2,
  },
  {
    id: '3',
    materialCode: 'KD-SM-001',
    materialName: '볼트 M6x20',
    unit: 'EA',
    currentStock: 1200,
    fifoRank: 3,
  },
];

interface MaterialInputModalProps {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  order: WorkOrder | null;
  /** 전량완료 흐름에서 사용 - 투입 등록/취소 후 완료 처리 */
  onComplete?: () => void;
  /** 전량완료 흐름 여부 (취소 시에도 완료 처리) */
  isCompletionFlow?: boolean;
  /** 자재 투입 저장 콜백 */
  onSaveMaterials?: (orderId: string, materials: MaterialInput[]) => void;
  /** 이미 투입된 자재 목록 */
  savedMaterials?: MaterialInput[];
}

export function MaterialInputModal({
  open,
  onOpenChange,
  order,
  onComplete,
  isCompletionFlow = false,
  onSaveMaterials,
  savedMaterials = [],
}: MaterialInputModalProps) {
  const [selectedMaterials, setSelectedMaterials] = useState<Set<string>>(new Set());
  const [materials] = useState<MaterialInput[]>(MOCK_MATERIALS);

  // 이미 투입된 자재가 있으면 선택 상태로 초기화
  const hasSavedMaterials = savedMaterials.length > 0;

  const handleToggleMaterial = (materialId: string) => {
    setSelectedMaterials((prev) => {
      const next = new Set(prev);
      if (next.has(materialId)) {
        next.delete(materialId);
      } else {
        next.add(materialId);
      }
      return next;
    });
  };

  // 자재 투입 등록
  const handleSubmit = () => {
    if (!order) return;

    // 선택된 자재 정보 추출
    const selectedMaterialList = materials.filter((m) => selectedMaterials.has(m.id));
    console.log('[자재투입] 저장:', order.id, selectedMaterialList);

    // 자재 저장 콜백
    if (onSaveMaterials) {
      onSaveMaterials(order.id, selectedMaterialList);
    }

    setSelectedMaterials(new Set());
    onOpenChange(false);

    // 전량완료 흐름이면 완료 처리
    if (isCompletionFlow && onComplete) {
      onComplete();
    }
  };

  // 건너뛰기 (자재 없이 완료) - 전량완료 흐름에서만 사용
  const handleSkip = () => {
    setSelectedMaterials(new Set());
    onOpenChange(false);
    // 전량완료 흐름이면 완료 처리
    if (onComplete) {
      onComplete();
    }
  };

  // 취소 (모달만 닫기)
  const handleCancel = () => {
    setSelectedMaterials(new Set());
    onOpenChange(false);
  };

  const getFifoRankBadge = (rank: number) => {
    const colors = {
      1: 'bg-red-100 text-red-800',
      2: 'bg-orange-100 text-orange-800',
      3: 'bg-gray-100 text-gray-800',
    };
    const labels = {
      1: '최우선',
      2: '차선',
      3: '대기',
    };
    return (
      <Badge className={colors[rank as 1 | 2 | 3] || colors[3]}>
        {rank}위 ({labels[rank as 1 | 2 | 3] || labels[3]})
      </Badge>
    );
  };

  if (!order) return null;

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="max-w-2xl">
        <DialogHeader>
          <DialogTitle className="flex items-center gap-2">
            <Package className="h-5 w-5" />
            투입자재 등록
          </DialogTitle>
          <DialogDescription>
            작업지시 {order.orderNo}에 투입할 자재를 선택하세요.
          </DialogDescription>
        </DialogHeader>

        <div className="space-y-4">
          {/* FIFO 순위 안내 */}
          <div className="flex items-center gap-4 text-sm text-muted-foreground">
            <span>FIFO 순위:</span>
            <span className="flex items-center gap-1">
              <Badge className="bg-red-100 text-red-800">1</Badge> 최우선
            </span>
            <span className="flex items-center gap-1">
              <Badge className="bg-orange-100 text-orange-800">2</Badge> 차선
            </span>
            <span className="flex items-center gap-1">
              <Badge className="bg-gray-100 text-gray-800">3+</Badge> 대기
            </span>
          </div>

          {/* 자재 테이블 */}
          {materials.length === 0 ? (
            <div className="py-8 text-center text-muted-foreground border rounded-lg">
              이 공정에 배정된 자재가 없습니다.
            </div>
          ) : (
            <Table>
              <TableHeader>
                <TableRow>
                  <TableHead className="w-12">선택</TableHead>
                  <TableHead>자재코드</TableHead>
                  <TableHead>자재명</TableHead>
                  <TableHead>단위</TableHead>
                  <TableHead className="text-right">현재고</TableHead>
                  <TableHead>FIFO</TableHead>
                </TableRow>
              </TableHeader>
              <TableBody>
                {materials.map((material) => (
                  <TableRow key={material.id}>
                    <TableCell>
                      <Checkbox
                        checked={selectedMaterials.has(material.id)}
                        onCheckedChange={() => handleToggleMaterial(material.id)}
                      />
                    </TableCell>
                    <TableCell className="font-medium">{material.materialCode}</TableCell>
                    <TableCell>{material.materialName}</TableCell>
                    <TableCell>{material.unit}</TableCell>
                    <TableCell className="text-right">{material.currentStock.toLocaleString()}</TableCell>
                    <TableCell>{getFifoRankBadge(material.fifoRank)}</TableCell>
                  </TableRow>
                ))}
              </TableBody>
            </Table>
          )}
        </div>

        <DialogFooter className="flex-col sm:flex-row gap-2">
          <Button variant="outline" onClick={handleCancel}>
            취소
          </Button>
          {isCompletionFlow && (
            <Button variant="secondary" onClick={handleSkip}>
              건너뛰기
            </Button>
          )}
          <Button onClick={handleSubmit} disabled={selectedMaterials.size === 0}>
            투입 등록
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}