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path: root/components/ProjectSelector.tsx
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"use client"

import * as React from "react"
import { Check, ChevronsUpDown } from "lucide-react"
import { Button } from "@/components/ui/button"
import { Popover, PopoverTrigger, PopoverContent } from "@/components/ui/popover"
import { Command, CommandInput, CommandList, CommandEmpty, CommandGroup, CommandItem } 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) => void;
  placeholder?: string;
  filterType?: string; // 옵션으로 필터 타입 지정 가능
}

export function ProjectSelector({ 
  selectedProjectId, 
  onProjectSelect, 
  placeholder = "프로젝트 선택...",
  filterType
}: 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 후 plant 타입만 필터링
  React.useEffect(() => {
    async function loadAllProjects() {
      setIsLoading(true);
      try {
        const allProjects = await getProjects();
        
        // filterType이 지정된 경우 해당 타입만 필터링
        const filteredByType = filterType 
          ? allProjects.filter(p => p.type === filterType)
          : allProjects;
        
        console.log(`Loaded ${filteredByType.length} ${filterType || 'all'} projects`);
        setProjects(filteredByType);
        
        // 초기 선택된 프로젝트가 있으면 설정
        if (selectedProjectId) {
          const selected = filteredByType.find(p => p.id === selectedProjectId);
          if (selected) {
            setSelectedProject(selected);
          }
        }
      } catch (error) {
        console.error("프로젝트 목록 로드 오류:", error);
      } finally {
        setIsLoading(false);
      }
    }
    
    loadAllProjects();
  }, [selectedProjectId, filterType]);

  // 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);
  };

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button
          variant="outline"
          role="combobox"
          aria-expanded={open}
          className="w-full justify-between"
          disabled={isLoading}
        >
          {isLoading ? (
            "프로젝트 로딩 중..."
          ) : selectedProject ? (
            `${selectedProject.projectCode} - ${selectedProject.projectName}`
          ) : (
            placeholder
          )}
          <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-[400px] p-0">
        <Command>
          <CommandInput
            placeholder="프로젝트 코드/이름 검색..."
            onValueChange={setSearchTerm}
          />
          <CommandList 
            className="max-h-[300px]" 
            onWheel={(e) => {
              e.stopPropagation();
              const target = e.currentTarget;
              target.scrollTop += e.deltaY;
            }}
          >
            {isLoading ? (
              <div className="py-6 text-center text-sm">로딩 중...</div>
            ) : filteredProjects.length === 0 ? (
              <CommandEmpty>
                {searchTerm 
                  ? "검색 결과가 없습니다" 
                  : `${filterType || '해당 타입의'} 프로젝트가 없습니다`}
              </CommandEmpty>
            ) : (
              <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>
  );
}