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path: root/components/pq/project-select.tsx
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"use client"

import * as React from "react"
import { Check, ChevronsUpDown, X } from "lucide-react"
import { Button } from "@/components/ui/button"
import { Popover, PopoverTrigger, PopoverContent } from "@/components/ui/popover"
import { Command, CommandInput, CommandList, CommandEmpty, CommandGroup, CommandItem, CommandSeparator } from "@/components/ui/command"
import { cn } from "@/lib/utils"
import { getProjects, type Project } from "@/lib/rfqs/service"

interface ProjectSelectorProps {
  selectedProjectId?: number | null;
  onProjectSelect: (project: Project | null) => void;
  placeholder?: string;
  showClearOption?: boolean;
  clearOptionText?: string;
}

export function ProjectSelector({ 
  selectedProjectId, 
  onProjectSelect, 
  placeholder = "프로젝트 선택...",
  showClearOption = true,
  clearOptionText = "일반 PQ 보기"
}: ProjectSelectorProps) {
  const [open, setOpen] = React.useState(false)
  const [searchTerm, setSearchTerm] = React.useState("")
  const [projects, setProjects] = React.useState<Project[]>([])
  const [isLoading, setIsLoading] = React.useState(false)
  const [selectedProject, setSelectedProject] = React.useState<Project | null>(null)

  // 모든 프로젝트 데이터 로드 (한 번만)
  React.useEffect(() => {
    async function loadAllProjects() {
      setIsLoading(true);
      try {
        const allProjects = await getProjects();
        setProjects(allProjects);
        
        // 초기 선택된 프로젝트가 있으면 설정
        if (selectedProjectId) {
          const selected = allProjects.find(p => p.id === selectedProjectId);
          if (selected) {
            setSelectedProject(selected);
          }
        }
      } catch (error) {
        console.error("프로젝트 목록 로드 오류:", error);
      } finally {
        setIsLoading(false);
      }
    }
    
    loadAllProjects();
  }, [selectedProjectId]);

  // 클라이언트 측에서 검색어로 필터링
  const filteredProjects = React.useMemo(() => {
    if (!searchTerm.trim()) return projects;
    
    const lowerSearch = searchTerm.toLowerCase();
    return projects.filter(
      project => 
        project.projectCode.toLowerCase().includes(lowerSearch) || 
        project.projectName.toLowerCase().includes(lowerSearch)
    );
  }, [projects, searchTerm]);

  // 프로젝트 선택 처리
  const handleSelectProject = (project: Project) => {
    setSelectedProject(project);
    onProjectSelect(project);
    setOpen(false);
  };

  // 선택 해제 처리
  const handleClearSelection = () => {
    setSelectedProject(null);
    onProjectSelect(null);
    setOpen(false);
  };

  return (
    <div className="space-y-1">
      {/* 선택된 프로젝트 정보 표시 (선택된 경우에만) */}
      {selectedProject && (
        <div className="flex items-center justify-between px-2">
          <div className="flex flex-col">
            <div className="text-sm font-medium">{selectedProject.projectCode}</div>
            <div className="text-xs text-muted-foreground truncate max-w-[300px]">
              {selectedProject.projectName}
            </div>
          </div>
          <Button
            variant="ghost"
            size="sm"
            className="h-7 w-7 p-0 text-muted-foreground hover:text-destructive"
            onClick={handleClearSelection}
          >
            <X className="h-4 w-4" />
            <span className="sr-only">선택 해제</span>
          </Button>
        </div>
      )}
      
      {/* 셀렉터 컴포넌트 */}
      <Popover open={open} onOpenChange={setOpen}>
        <PopoverTrigger asChild>
          <Button
            variant="outline"
            role="combobox"
            aria-expanded={open}
            className="w-full justify-between"
          >
            {selectedProject ? "프로젝트 변경..." : placeholder}
            <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
          </Button>
        </PopoverTrigger>
        
        <PopoverContent className="w-[400px] p-0">
          <Command>
            <CommandInput
              placeholder="프로젝트 코드/이름 검색..."
              onValueChange={setSearchTerm}
            />
            <CommandList className="max-h-[300px]">
              <CommandEmpty>검색 결과가 없습니다</CommandEmpty>
              
              {showClearOption && selectedProject && (
                <>
                  <CommandGroup>
                    <CommandItem
                      onSelect={handleClearSelection}
                      className="text-blue-600 font-medium"
                    >
                      {clearOptionText}
                    </CommandItem>
                  </CommandGroup>
                  <CommandSeparator />
                </>
              )}
              
              {isLoading ? (
                <div className="py-6 text-center text-sm">로딩 중...</div>
              ) : (
                <CommandGroup>
                  {filteredProjects.map((project) => (
                    <CommandItem
                      key={project.id}
                      value={`${project.projectCode} ${project.projectName}`}
                      onSelect={() => handleSelectProject(project)}
                    >
                      <Check
                        className={cn(
                          "mr-2 h-4 w-4",
                          selectedProject?.id === project.id
                            ? "opacity-100"
                            : "opacity-0"
                        )}
                      />
                      <span className="font-medium">{project.projectCode}</span>
                      <span className="ml-2 text-gray-500 truncate">- {project.projectName}</span>
                    </CommandItem>
                  ))}
                </CommandGroup>
              )}
            </CommandList>
          </Command>
        </PopoverContent>
      </Popover>
    </div>
  );
}