ERP-node/frontend/components/unified/config-panels/UnifiedSelectConfigPanel.tsx

"use client";

/**
 * UnifiedSelect 설정 패널
 * 통합 선택 컴포넌트의 세부 설정을 관리합니다.
 */

import React, { useState, useEffect, useCallback } from "react";
import { Label } from "@/components/ui/label";
import { Input } from "@/components/ui/input";
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
import { Separator } from "@/components/ui/separator";
import { Checkbox } from "@/components/ui/checkbox";
import { Button } from "@/components/ui/button";
import { Plus, Trash2, Loader2 } from "lucide-react";
import { apiClient } from "@/lib/api/client";

interface ColumnOption {
  columnName: string;
  columnLabel: string;
}

interface UnifiedSelectConfigPanelProps {
  config: Record<string, any>;
  onChange: (config: Record<string, any>) => void;
  /** 컬럼의 inputType (entity 타입인 경우에만 엔티티 소스 표시) */
  inputType?: string;
}

export const UnifiedSelectConfigPanel: React.FC<UnifiedSelectConfigPanelProps> = ({
  config,
  onChange,
  inputType,
}) => {
  // 엔티티 타입인지 확인
  const isEntityType = inputType === "entity";
  // 엔티티 테이블의 컬럼 목록
  const [entityColumns, setEntityColumns] = useState<ColumnOption[]>([]);
  const [loadingColumns, setLoadingColumns] = useState(false);

  // 설정 업데이트 핸들러
  const updateConfig = (field: string, value: any) => {
    onChange({ ...config, [field]: value });
  };

  // 엔티티 테이블 변경 시 컬럼 목록 조회
  const loadEntityColumns = useCallback(async (tableName: string) => {
    if (!tableName) {
      setEntityColumns([]);
      return;
    }

    setLoadingColumns(true);
    try {
      const response = await apiClient.get(`/table-management/tables/${tableName}/columns?size=500`);
      const data = response.data.data || response.data;
      const columns = data.columns || data || [];
      
      const columnOptions: ColumnOption[] = columns.map((col: any) => {
        const name = col.columnName || col.column_name || col.name;
        // displayName 우선 사용
        const label = col.displayName || col.display_name || col.columnLabel || col.column_label || name;
        
        return {
          columnName: name,
          columnLabel: label,
        };
      });
      
      setEntityColumns(columnOptions);
    } catch (error) {
      console.error("컬럼 목록 조회 실패:", error);
      setEntityColumns([]);
    } finally {
      setLoadingColumns(false);
    }
  }, []);

  // 엔티티 테이블이 변경되면 컬럼 목록 로드
  useEffect(() => {
    if (config.source === "entity" && config.entityTable) {
      loadEntityColumns(config.entityTable);
    }
  }, [config.source, config.entityTable, loadEntityColumns]);

  // 정적 옵션 관리
  const options = config.options || [];
  
  const addOption = () => {
    const newOptions = [...options, { value: "", label: "" }];
    updateConfig("options", newOptions);
  };

  const updateOption = (index: number, field: "value" | "label", value: string) => {
    const newOptions = [...options];
    newOptions[index] = { ...newOptions[index], [field]: value };
    updateConfig("options", newOptions);
  };

  const removeOption = (index: number) => {
    const newOptions = options.filter((_: any, i: number) => i !== index);
    updateConfig("options", newOptions);
  };

  return (
    <div className="space-y-4">
      {/* 선택 모드 */}
      <div className="space-y-2">
        <Label className="text-xs font-medium">선택 모드</Label>
        <Select
          value={config.mode || "dropdown"}
          onValueChange={(value) => updateConfig("mode", value)}
        >
          <SelectTrigger className="h-8 text-xs">
            <SelectValue placeholder="모드 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="dropdown">드롭다운</SelectItem>
            <SelectItem value="radio">라디오 버튼</SelectItem>
            <SelectItem value="check">체크박스</SelectItem>
            <SelectItem value="tag">태그 선택</SelectItem>
            <SelectItem value="toggle">토글 스위치</SelectItem>
            <SelectItem value="swap">스왑 선택</SelectItem>
          </SelectContent>
        </Select>
      </div>

      <Separator />

      {/* 데이터 소스 */}
      <div className="space-y-2">
        <Label className="text-xs font-medium">데이터 소스</Label>
        <Select
          value={config.source || "static"}
          onValueChange={(value) => updateConfig("source", value)}
        >
          <SelectTrigger className="h-8 text-xs">
            <SelectValue placeholder="소스 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="static">정적 옵션</SelectItem>
            <SelectItem value="code">공통 코드</SelectItem>
            {/* 엔티티 타입일 때만 엔티티 옵션 표시 */}
            {isEntityType && <SelectItem value="entity">엔티티</SelectItem>}
          </SelectContent>
        </Select>
      </div>

      {/* 정적 옵션 관리 */}
      {config.source === "static" && (
        <div className="space-y-2">
          <div className="flex items-center justify-between">
            <Label className="text-xs font-medium">옵션 목록</Label>
            <Button
              type="button"
              variant="ghost"
              size="sm"
              onClick={addOption}
              className="h-6 px-2 text-xs"
            >
              <Plus className="h-3 w-3 mr-1" />
              추가
            </Button>
          </div>
          <div className="space-y-2 max-h-40 overflow-y-auto">
            {options.map((option: any, index: number) => (
              <div key={index} className="flex items-center gap-2">
                <Input
                  value={option.value || ""}
                  onChange={(e) => updateOption(index, "value", e.target.value)}
                  placeholder="값"
                  className="h-7 text-xs flex-1"
                />
                <Input
                  value={option.label || ""}
                  onChange={(e) => updateOption(index, "label", e.target.value)}
                  placeholder="표시 텍스트"
                  className="h-7 text-xs flex-1"
                />
                <Button
                  type="button"
                  variant="ghost"
                  size="sm"
                  onClick={() => removeOption(index)}
                  className="h-7 w-7 p-0 text-destructive"
                >
                  <Trash2 className="h-3 w-3" />
                </Button>
              </div>
            ))}
            {options.length === 0 && (
              <p className="text-xs text-muted-foreground text-center py-2">
                옵션을 추가해주세요
              </p>
            )}
          </div>
        </div>
      )}

      {/* 공통 코드 설정 - 테이블 타입 관리에서 설정되므로 정보만 표시 */}
      {config.source === "code" && (
        <div className="space-y-1">
          <Label className="text-xs font-medium">코드 그룹</Label>
          {config.codeGroup ? (
            <p className="text-sm font-medium text-foreground">{config.codeGroup}</p>
          ) : (
            <p className="text-xs text-amber-600">
              테이블 타입 관리에서 코드 그룹을 설정해주세요
            </p>
          )}
        </div>
      )}


      {/* 엔티티(참조 테이블) 설정 */}
      {config.source === "entity" && (
        <div className="space-y-3">
          <div className="space-y-2">
            <Label className="text-xs font-medium">참조 테이블</Label>
            <Input
              value={config.entityTable || ""}
              readOnly
              disabled
              placeholder="테이블 타입 관리에서 설정"
              className="h-8 text-xs bg-muted"
            />
            <p className="text-[10px] text-muted-foreground">
              조인할 테이블명 (테이블 타입 관리에서 설정된 경우 자동 입력됨)
            </p>
          </div>

          {/* 컬럼 로딩 중 표시 */}
          {loadingColumns && (
            <div className="flex items-center gap-2 text-xs text-muted-foreground">
              <Loader2 className="h-3 w-3 animate-spin" />
              컬럼 목록 로딩 중...
            </div>
          )}

          {/* 컬럼 선택 - 테이블이 설정되어 있고 컬럼 목록이 있는 경우 Select로 표시 */}
          <div className="grid grid-cols-2 gap-2">
            <div className="space-y-2">
              <Label className="text-xs font-medium">값 컬럼 (코드)</Label>
              {entityColumns.length > 0 ? (
                <Select
                  value={config.entityValueColumn || ""}
                  onValueChange={(value) => updateConfig("entityValueColumn", value)}
                >
                  <SelectTrigger className="h-8 text-xs">
                    <SelectValue placeholder="컬럼 선택" />
                  </SelectTrigger>
                  <SelectContent>
                    {entityColumns.map((col) => (
                      <SelectItem key={col.columnName} value={col.columnName}>
                        {col.columnLabel || col.columnName}
                      </SelectItem>
                    ))}
                  </SelectContent>
                </Select>
              ) : (
                <Input
                  value={config.entityValueColumn || ""}
                  onChange={(e) => updateConfig("entityValueColumn", e.target.value)}
                  placeholder="id"
                  className="h-8 text-xs"
                />
              )}
              <p className="text-[10px] text-muted-foreground">저장될 값</p>
            </div>
            <div className="space-y-2">
              <Label className="text-xs font-medium">표시 컬럼</Label>
              {entityColumns.length > 0 ? (
                <Select
                  value={config.entityLabelColumn || ""}
                  onValueChange={(value) => updateConfig("entityLabelColumn", value)}
                >
                  <SelectTrigger className="h-8 text-xs">
                    <SelectValue placeholder="컬럼 선택" />
                  </SelectTrigger>
                  <SelectContent>
                    {entityColumns.map((col) => (
                      <SelectItem key={col.columnName} value={col.columnName}>
                        {col.columnLabel || col.columnName}
                      </SelectItem>
                    ))}
                  </SelectContent>
                </Select>
              ) : (
                <Input
                  value={config.entityLabelColumn || ""}
                  onChange={(e) => updateConfig("entityLabelColumn", e.target.value)}
                  placeholder="name"
                  className="h-8 text-xs"
                />
              )}
              <p className="text-[10px] text-muted-foreground">화면에 표시될 값</p>
            </div>
          </div>

          {/* 컬럼이 없는 경우 안내 */}
          {config.entityTable && !loadingColumns && entityColumns.length === 0 && (
            <p className="text-[10px] text-amber-600">
              테이블 컬럼을 조회할 수 없습니다. 테이블 타입 관리에서 참조 테이블을 설정해주세요.
            </p>
          )}
        </div>
      )}

      <Separator />

      {/* 추가 옵션 */}
      <div className="space-y-3">
        <Label className="text-xs font-medium">추가 옵션</Label>
        
        <div className="flex items-center space-x-2">
          <Checkbox
            id="multiple"
            checked={config.multiple || false}
            onCheckedChange={(checked) => updateConfig("multiple", checked)}
          />
          <label htmlFor="multiple" className="text-xs">다중 선택 허용</label>
        </div>

        <div className="flex items-center space-x-2">
          <Checkbox
            id="searchable"
            checked={config.searchable || false}
            onCheckedChange={(checked) => updateConfig("searchable", checked)}
          />
          <label htmlFor="searchable" className="text-xs">검색 기능</label>
        </div>

        <div className="flex items-center space-x-2">
          <Checkbox
            id="allowClear"
            checked={config.allowClear !== false}
            onCheckedChange={(checked) => updateConfig("allowClear", checked)}
          />
          <label htmlFor="allowClear" className="text-xs">값 초기화 허용</label>
        </div>
      </div>

      {/* 다중 선택 시 최대 개수 */}
      {config.multiple && (
        <div className="space-y-2">
          <Label className="text-xs font-medium">최대 선택 개수</Label>
          <Input
            type="number"
            value={config.maxSelect ?? ""}
            onChange={(e) => updateConfig("maxSelect", e.target.value ? Number(e.target.value) : undefined)}
            placeholder="제한 없음"
            min="1"
            className="h-8 text-xs"
          />
        </div>
      )}
    </div>
  );
};

UnifiedSelectConfigPanel.displayName = "UnifiedSelectConfigPanel";

export default UnifiedSelectConfigPanel;