"use client";

import React from "react";
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import { Eye, Edit, Trash2, MoreHorizontal } from "lucide-react";
import { CardDisplayConfig, ColumnConfig } from "./types";

interface CardModeRendererProps {
  data: Record<string, any>[];
  cardConfig: CardDisplayConfig;
  visibleColumns: ColumnConfig[];
  onRowClick?: (row: Record<string, any>) => void;
  onRowSelect?: (row: Record<string, any>, selected: boolean) => void;
  selectedRows?: string[];
  showActions?: boolean;
}

/**
 * 카드 모드 렌더러
 * 테이블 데이터를 카드 형태로 표시
 */
export const CardModeRenderer: React.FC<CardModeRendererProps> = ({
  data,
  cardConfig,
  visibleColumns,
  onRowClick,
  onRowSelect,
  selectedRows = [],
  showActions = true,
}) => {
  // 기본값 설정
  const config = {
    cardsPerRow: 3,
    cardSpacing: 16,
    showActions: true,
    cardHeight: "auto",
    ...cardConfig,
  };

  // 카드 그리드 스타일 계산
  const gridStyle: React.CSSProperties = {
    display: "grid",
    gridTemplateColumns: `repeat(${config.cardsPerRow}, 1fr)`,
    gap: `${config.cardSpacing}px`,
    padding: `${config.cardSpacing}px`,
  };

  // 카드 높이 스타일
  const cardStyle: React.CSSProperties = {
    height: config.cardHeight === "auto" ? "auto" : `${config.cardHeight}px`,
    cursor: onRowClick ? "pointer" : "default",
  };

  // 컬럼 값 가져오기 함수
  const getColumnValue = (row: Record<string, any>, columnName?: string): string => {
    if (!columnName || !row) return "";
    return String(row[columnName] || "");
  };

  // 액션 버튼 렌더링
  const renderActions = (row: Record<string, any>) => {
    if (!showActions || !config.showActions) return null;

    return (
      <div className="flex items-center justify-end space-x-1 mt-3 pt-3 border-t border-gray-100">
        <Button
          variant="ghost"
          size="sm"
          onClick={(e) => {
            e.stopPropagation();
            // 상세보기 액션
          }}
        >
          <Eye className="h-4 w-4" />
        </Button>
        <Button
          variant="ghost"
          size="sm"
          onClick={(e) => {
            e.stopPropagation();
            // 편집 액션
          }}
        >
          <Edit className="h-4 w-4" />
        </Button>
        <Button
          variant="ghost"
          size="sm"
          onClick={(e) => {
            e.stopPropagation();
            // 삭제 액션
          }}
        >
          <Trash2 className="h-4 w-4" />
        </Button>
        <Button
          variant="ghost"
          size="sm"
          onClick={(e) => {
            e.stopPropagation();
            // 더보기 액션
          }}
        >
          <MoreHorizontal className="h-4 w-4" />
        </Button>
      </div>
    );
  };

  // 데이터가 없는 경우
  if (!data || data.length === 0) {
    return (
      <div className="flex flex-col items-center justify-center py-12 text-center">
        <div className="w-16 h-16 bg-gradient-to-br from-slate-100 to-slate-200 rounded-2xl flex items-center justify-center mb-4">
          <div className="w-8 h-8 bg-slate-300 rounded-lg"></div>
        </div>
        <div className="text-sm font-medium text-slate-600 mb-1">표시할 데이터가 없습니다</div>
        <div className="text-xs text-slate-400">조건을 변경하거나 새로운 데이터를 추가해보세요</div>
      </div>
    );
  }

  return (
    <div style={gridStyle} className="w-full">
      {data.map((row, index) => {
        const idValue = getColumnValue(row, config.idColumn);
        const titleValue = getColumnValue(row, config.titleColumn);
        const subtitleValue = getColumnValue(row, config.subtitleColumn);
        const descriptionValue = getColumnValue(row, config.descriptionColumn);
        const imageValue = getColumnValue(row, config.imageColumn);
        
        const isSelected = selectedRows.includes(idValue);

        return (
          <Card
            key={`card-${index}-${idValue}`}
            style={cardStyle}
            className={`transition-all duration-200 hover:shadow-md ${
              isSelected ? "ring-2 ring-blue-500 bg-blue-50/30" : ""
            }`}
            onClick={() => onRowClick?.(row)}
          >
            <CardHeader className="pb-3">
              <div className="flex items-start justify-between">
                <div className="flex-1 min-w-0">
                  <CardTitle className="text-sm font-medium truncate">
                    {titleValue || "제목 없음"}
                  </CardTitle>
                  {subtitleValue && (
                    <div className="text-xs text-gray-500 mt-1 truncate">
                      {subtitleValue}
                    </div>
                  )}
                </div>
                
                {/* ID 뱃지 */}
                {idValue && (
                  <Badge variant="secondary" className="ml-2 text-xs">
                    {idValue}
                  </Badge>
                )}
              </div>
            </CardHeader>

            <CardContent className="pt-0">
              {/* 이미지 표시 */}
              {imageValue && (
                <div className="mb-3">
                  <img
                    src={imageValue}
                    alt={titleValue}
                    className="w-full h-24 object-cover rounded-md bg-gray-100"
                    onError={(e) => {
                      const target = e.target as HTMLImageElement;
                      target.style.display = "none";
                    }}
                  />
                </div>
              )}

              {/* 설명 표시 */}
              {descriptionValue && (
                <div className="text-xs text-gray-600 line-clamp-2 mb-3">
                  {descriptionValue}
                </div>
              )}

              {/* 추가 필드들 표시 (선택적) */}
              <div className="space-y-1">
                {visibleColumns
                  .filter(col => 
                    col.columnName !== config.idColumn &&
                    col.columnName !== config.titleColumn &&
                    col.columnName !== config.subtitleColumn &&
                    col.columnName !== config.descriptionColumn &&
                    col.columnName !== config.imageColumn &&
                    col.columnName !== "__checkbox__" &&
                    col.visible
                  )
                  .slice(0, 3) // 최대 3개 추가 필드만 표시
                  .map((col) => {
                    const value = getColumnValue(row, col.columnName);
                    if (!value) return null;
                    
                    return (
                      <div key={col.columnName} className="flex justify-between items-center text-xs">
                        <span className="text-gray-500 truncate">{col.displayName}:</span>
                        <span className="font-medium truncate ml-2">{value}</span>
                      </div>
                    );
                  })}
              </div>

              {/* 액션 버튼들 */}
              {renderActions(row)}
            </CardContent>
          </Card>
        );
      })}
    </div>
  );
};