"use client";

import { useState, useEffect } from "react";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
import { Search, Loader2 } from "lucide-react";
import { materialApi } from "@/lib/api/yardLayoutApi";

interface TempMaterial {
  id: number;
  material_code: string;
  material_name: string;
  category: string;
  unit: string;
  default_color: string;
  description: string;
}

interface MaterialLibraryProps {
  isOpen: boolean;
  onClose: () => void;
  onSelect: (material: TempMaterial) => void;
}

export default function MaterialLibrary({ isOpen, onClose, onSelect }: MaterialLibraryProps) {
  const [materials, setMaterials] = useState<TempMaterial[]>([]);
  const [categories, setCategories] = useState<string[]>([]);
  const [searchText, setSearchText] = useState("");
  const [selectedCategory, setSelectedCategory] = useState<string>("");
  const [isLoading, setIsLoading] = useState(false);
  const [selectedMaterial, setSelectedMaterial] = useState<TempMaterial | null>(null);

  // 자재 목록 로드
  const loadMaterials = async () => {
    try {
      setIsLoading(true);
      const [materialsResponse, categoriesResponse] = await Promise.all([
        materialApi.getTempMaterials({
          search: searchText || undefined,
          category: selectedCategory || undefined,
          page: 1,
          limit: 50,
        }),
        materialApi.getCategories(),
      ]);

      if (materialsResponse.success) {
        setMaterials(materialsResponse.data);
      }

      if (categoriesResponse.success) {
        setCategories(categoriesResponse.data);
      }
    } catch (error) {
      console.error("자재 목록 조회 실패:", error);
    } finally {
      setIsLoading(false);
    }
  };

  useEffect(() => {
    if (isOpen) {
      loadMaterials();
    }
  }, [isOpen, searchText, selectedCategory]);

  // 자재 선택 및 추가
  const handleSelectMaterial = () => {
    if (selectedMaterial) {
      onSelect(selectedMaterial);
      setSelectedMaterial(null);
      onClose();
    }
  };

  // 모달 닫기
  const handleClose = () => {
    setSelectedMaterial(null);
    setSearchText("");
    setSelectedCategory("");
    onClose();
  };

  return (
    <Dialog open={isOpen} onOpenChange={handleClose}>
      <DialogContent className="max-w-4xl">
        <DialogHeader>
          <DialogTitle>자재 선택</DialogTitle>
        </DialogHeader>

        <div className="space-y-4">
          {/* 검색 및 필터 */}
          <div className="flex items-center gap-2">
            <div className="relative flex-1">
              <Search className="absolute top-1/2 left-3 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
              <Input
                placeholder="자재 코드 또는 이름 검색..."
                value={searchText}
                onChange={(e) => setSearchText(e.target.value)}
                className="pl-9"
              />
            </div>
            <select
              value={selectedCategory}
              onChange={(e) => setSelectedCategory(e.target.value)}
              className="rounded-md border border-border px-3 py-2 text-sm"
            >
              <option value="">전체 카테고리</option>
              {categories.map((category) => (
                <option key={category} value={category}>
                  {category}
                </option>
              ))}
            </select>
          </div>

          {/* 자재 목록 */}
          {isLoading ? (
            <div className="flex h-64 items-center justify-center">
              <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
            </div>
          ) : materials.length === 0 ? (
            <div className="flex h-64 items-center justify-center text-muted-foreground">
              {searchText || selectedCategory ? "검색 결과가 없습니다" : "등록된 자재가 없습니다"}
            </div>
          ) : (
            <div className="max-h-96 overflow-auto rounded-md">
              <Table>
                <TableHeader>
                  <TableRow>
                    <TableHead className="w-[50px]">색상</TableHead>
                    <TableHead>자재 코드</TableHead>
                    <TableHead>자재 이름</TableHead>
                    <TableHead>카테고리</TableHead>
                    <TableHead>단위</TableHead>
                  </TableRow>
                </TableHeader>
                <TableBody>
                  {materials.map((material) => (
                    <TableRow
                      key={material.id}
                      className={`cursor-pointer ${
                        selectedMaterial?.id === material.id ? "bg-primary/10" : "hover:bg-muted"
                      }`}
                      onClick={() => setSelectedMaterial(material)}
                    >
                      <TableCell>
                        <div className="h-6 w-6 rounded border" style={{ backgroundColor: material.default_color }} />
                      </TableCell>
                      <TableCell className="font-medium">{material.material_code}</TableCell>
                      <TableCell>{material.material_name}</TableCell>
                      <TableCell>{material.category}</TableCell>
                      <TableCell>{material.unit}</TableCell>
                    </TableRow>
                  ))}
                </TableBody>
              </Table>
            </div>
          )}

          {/* 선택된 자재 정보 */}
          {selectedMaterial && (
            <div className="rounded-lg bg-primary/10 p-4">
              <div className="mb-2 text-sm font-medium text-primary">선택된 자재</div>
              <div className="flex items-center gap-4">
                <div className="h-10 w-10 rounded border" style={{ backgroundColor: selectedMaterial.default_color }} />
                <div className="flex-1">
                  <div className="font-medium">{selectedMaterial.material_name}</div>
                  <div className="text-sm text-foreground">{selectedMaterial.material_code}</div>
                </div>
              </div>
              {selectedMaterial.description && (
                <div className="mt-2 text-sm text-foreground">{selectedMaterial.description}</div>
              )}
            </div>
          )}
        </div>

        <DialogFooter>
          <Button variant="outline" onClick={handleClose}>
            취소
          </Button>
          <Button onClick={handleSelectMaterial} disabled={!selectedMaterial}>
            선택
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}