"use client";

import { useState, useEffect } from "react";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Badge } from "@/components/ui/badge";
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { MoreHorizontal, Edit, Trash2, Copy, Eye, Plus, Search } from "lucide-react";
import { ScreenDefinition } from "@/types/screen";

interface ScreenListProps {
  onScreenSelect: (screen: ScreenDefinition) => void;
  selectedScreen: ScreenDefinition | null;
}

export default function ScreenList({ onScreenSelect, selectedScreen }: ScreenListProps) {
  const [screens, setScreens] = useState<ScreenDefinition[]>([]);
  const [loading, setLoading] = useState(true);
  const [searchTerm, setSearchTerm] = useState("");
  const [currentPage, setCurrentPage] = useState(1);
  const [totalPages, setTotalPages] = useState(1);

  // 샘플 데이터 (실제로는 API에서 가져옴)
  useEffect(() => {
    const mockScreens: ScreenDefinition[] = [
      {
        screenId: 1,
        screenName: "사용자 관리 화면",
        screenCode: "USER_MANAGEMENT",
        tableName: "user_info",
        companyCode: "COMP001",
        description: "사용자 정보를 관리하는 화면",
        isActive: "Y",
        createdDate: new Date("2024-01-15"),
        updatedDate: new Date("2024-01-15"),
        createdBy: "admin",
        updatedBy: "admin",
      },
      {
        screenId: 2,
        screenName: "부서 관리 화면",
        screenCode: "DEPT_MANAGEMENT",
        tableName: "dept_info",
        companyCode: "COMP001",
        description: "부서 정보를 관리하는 화면",
        isActive: "Y",
        createdDate: new Date("2024-01-16"),
        updatedDate: new Date("2024-01-16"),
        createdBy: "admin",
        updatedBy: "admin",
      },
      {
        screenId: 3,
        screenName: "제품 관리 화면",
        screenCode: "PRODUCT_MANAGEMENT",
        tableName: "product_info",
        companyCode: "COMP001",
        description: "제품 정보를 관리하는 화면",
        isActive: "Y",
        createdDate: new Date("2024-01-17"),
        updatedDate: new Date("2024-01-17"),
        createdBy: "admin",
        updatedBy: "admin",
      },
    ];

    setScreens(mockScreens);
    setLoading(false);
  }, []);

  const filteredScreens = screens.filter(
    (screen) =>
      screen.screenName.toLowerCase().includes(searchTerm.toLowerCase()) ||
      screen.screenCode.toLowerCase().includes(searchTerm.toLowerCase()) ||
      screen.tableName.toLowerCase().includes(searchTerm.toLowerCase()),
  );

  const handleScreenSelect = (screen: ScreenDefinition) => {
    onScreenSelect(screen);
  };

  const handleEdit = (screen: ScreenDefinition) => {
    // 편집 모달 열기
    console.log("편집:", screen);
  };

  const handleDelete = (screen: ScreenDefinition) => {
    if (confirm(`"${screen.screenName}" 화면을 삭제하시겠습니까?`)) {
      // 삭제 API 호출
      console.log("삭제:", screen);
    }
  };

  const handleCopy = (screen: ScreenDefinition) => {
    // 복사 모달 열기
    console.log("복사:", screen);
  };

  const handleView = (screen: ScreenDefinition) => {
    // 미리보기 모달 열기
    console.log("미리보기:", screen);
  };

  if (loading) {
    return (
      <div className="flex items-center justify-center py-8">
        <div className="text-gray-500">로딩 중...</div>
      </div>
    );
  }

  return (
    <div className="space-y-4">
      {/* 검색 및 필터 */}
      <div className="flex items-center justify-between">
        <div className="flex items-center space-x-2">
          <div className="relative">
            <Search className="absolute top-1/2 left-3 h-4 w-4 -translate-y-1/2 transform text-gray-400" />
            <Input
              placeholder="화면명, 코드, 테이블명으로 검색..."
              value={searchTerm}
              onChange={(e) => setSearchTerm(e.target.value)}
              className="w-80 pl-10"
            />
          </div>
        </div>
        <Button className="bg-blue-600 hover:bg-blue-700">
          <Plus className="mr-2 h-4 w-4" />새 화면 생성
        </Button>
      </div>

      {/* 화면 목록 테이블 */}
      <Card>
        <CardHeader>
          <CardTitle className="flex items-center justify-between">
            <span>화면 목록 ({filteredScreens.length})</span>
          </CardTitle>
        </CardHeader>
        <CardContent>
          <Table>
            <TableHeader>
              <TableRow>
                <TableHead>화면명</TableHead>
                <TableHead>화면 코드</TableHead>
                <TableHead>테이블명</TableHead>
                <TableHead>상태</TableHead>
                <TableHead>생성일</TableHead>
                <TableHead>작업</TableHead>
              </TableRow>
            </TableHeader>
            <TableBody>
              {filteredScreens.map((screen) => (
                <TableRow
                  key={screen.screenId}
                  className={`cursor-pointer hover:bg-gray-50 ${
                    selectedScreen?.screenId === screen.screenId ? "border-blue-200 bg-blue-50" : ""
                  }`}
                  onClick={() => handleScreenSelect(screen)}
                >
                  <TableCell>
                    <div>
                      <div className="font-medium text-gray-900">{screen.screenName}</div>
                      {screen.description && <div className="mt-1 text-sm text-gray-500">{screen.description}</div>}
                    </div>
                  </TableCell>
                  <TableCell>
                    <Badge variant="outline" className="font-mono">
                      {screen.screenCode}
                    </Badge>
                  </TableCell>
                  <TableCell>
                    <span className="font-mono text-sm text-gray-600">{screen.tableName}</span>
                  </TableCell>
                  <TableCell>
                    <Badge
                      variant={screen.isActive === "Y" ? "default" : "secondary"}
                      className={screen.isActive === "Y" ? "bg-green-100 text-green-800" : "bg-gray-100 text-gray-800"}
                    >
                      {screen.isActive === "Y" ? "활성" : "비활성"}
                    </Badge>
                  </TableCell>
                  <TableCell>
                    <div className="text-sm text-gray-600">{screen.createdDate.toLocaleDateString()}</div>
                    <div className="text-xs text-gray-400">{screen.createdBy}</div>
                  </TableCell>
                  <TableCell>
                    <DropdownMenu>
                      <DropdownMenuTrigger asChild>
                        <Button variant="ghost" className="h-8 w-8 p-0">
                          <MoreHorizontal className="h-4 w-4" />
                        </Button>
                      </DropdownMenuTrigger>
                      <DropdownMenuContent align="end">
                        <DropdownMenuItem onClick={() => handleView(screen)}>
                          <Eye className="mr-2 h-4 w-4" />
                          미리보기
                        </DropdownMenuItem>
                        <DropdownMenuItem onClick={() => handleEdit(screen)}>
                          <Edit className="mr-2 h-4 w-4" />
                          편집
                        </DropdownMenuItem>
                        <DropdownMenuItem onClick={() => handleCopy(screen)}>
                          <Copy className="mr-2 h-4 w-4" />
                          복사
                        </DropdownMenuItem>
                        <DropdownMenuItem onClick={() => handleDelete(screen)} className="text-red-600">
                          <Trash2 className="mr-2 h-4 w-4" />
                          삭제
                        </DropdownMenuItem>
                      </DropdownMenuContent>
                    </DropdownMenu>
                  </TableCell>
                </TableRow>
              ))}
            </TableBody>
          </Table>

          {filteredScreens.length === 0 && <div className="py-8 text-center text-gray-500">검색 결과가 없습니다.</div>}
        </CardContent>
      </Card>

      {/* 페이지네이션 */}
      {totalPages > 1 && (
        <div className="flex items-center justify-center space-x-2">
          <Button
            variant="outline"
            size="sm"
            onClick={() => setCurrentPage(Math.max(1, currentPage - 1))}
            disabled={currentPage === 1}
          >
            이전
          </Button>
          <span className="text-sm text-gray-600">
            {currentPage} / {totalPages}
          </span>
          <Button
            variant="outline"
            size="sm"
            onClick={() => setCurrentPage(Math.min(totalPages, currentPage + 1))}
            disabled={currentPage === totalPages}
          >
            다음
          </Button>
        </div>
      )}
    </div>
  );
}