ERP-node/frontend/lib/registry/components/table-list/TableListComponent.tsx

"use client";

import React, { useState, useEffect, useMemo } from "react";
import { ComponentRendererProps } from "@/types/component";
import { TableListConfig, ColumnConfig, TableDataResponse } from "./types";
import { tableTypeApi } from "@/lib/api/screen";
import { entityJoinApi } from "@/lib/api/entityJoin";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
import {
  ChevronLeft,
  ChevronRight,
  ChevronsLeft,
  ChevronsRight,
  Search,
  RefreshCw,
  ArrowUpDown,
  ArrowUp,
  ArrowDown,
  TableIcon,
} from "lucide-react";
import { cn } from "@/lib/utils";

export interface TableListComponentProps {
  component: any;
  isDesignMode?: boolean;
  isSelected?: boolean;
  isInteractive?: boolean;
  onClick?: () => void;
  onDragStart?: (e: React.DragEvent) => void;
  onDragEnd?: (e: React.DragEvent) => void;
  className?: string;
  style?: React.CSSProperties;
  formData?: Record<string, any>;
  onFormDataChange?: (data: any) => void;
  config?: TableListConfig;

  // 추가 props (DOM에 전달되지 않음)
  size?: { width: number; height: number };
  position?: { x: number; y: number; z?: number };
  componentConfig?: any;
  selectedScreen?: any;
  onZoneComponentDrop?: any;
  onZoneClick?: any;
  tableName?: string;
  onRefresh?: () => void;
  onClose?: () => void;
  screenId?: string;
}

/**
 * TableList 컴포넌트
 * 데이터베이스 테이블의 데이터를 목록으로 표시하는 컴포넌트
 */
export const TableListComponent: React.FC<TableListComponentProps> = ({
  component,
  isDesignMode = false,
  isSelected = false,
  isInteractive = false,
  onClick,
  onDragStart,
  onDragEnd,
  config,
  className,
  style,
  formData,
  onFormDataChange,
  screenId,
  size,
  position,
  componentConfig,
  selectedScreen,
  onZoneComponentDrop,
  onZoneClick,
  tableName,
  onRefresh,
  onClose,
}) => {
  // 컴포넌트 설정
  const tableConfig = {
    ...config,
    ...component.config,
    ...componentConfig,
  } as TableListConfig;

  // 상태 관리
  const [data, setData] = useState<any[]>([]);
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);
  const [currentPage, setCurrentPage] = useState(1);
  const [totalPages, setTotalPages] = useState(0);
  const [totalItems, setTotalItems] = useState(0);
  const [searchTerm, setSearchTerm] = useState("");
  const [sortColumn, setSortColumn] = useState<string | null>(null);
  const [sortDirection, setSortDirection] = useState<"asc" | "desc">("asc");
  const [columnLabels, setColumnLabels] = useState<Record<string, string>>({});
  const [tableLabel, setTableLabel] = useState<string>("");
  const [localPageSize, setLocalPageSize] = useState<number>(tableConfig.pagination?.pageSize || 20); // 로컬 페이지 크기 상태
  const [selectedSearchColumn, setSelectedSearchColumn] = useState<string>(""); // 선택된 검색 컬럼
  const [displayColumns, setDisplayColumns] = useState<ColumnConfig[]>([]); // 🎯 표시할 컬럼 (Entity 조인 적용됨)

  // 높이 계산 함수
  const calculateOptimalHeight = () => {
    // 50개 이상일 때는 20개 기준으로 높이 고정
    const displayPageSize = localPageSize >= 50 ? 20 : localPageSize;
    const headerHeight = 48; // 테이블 헤더
    const rowHeight = 40; // 각 행 높이 (normal)
    const searchHeight = tableConfig.filter?.enabled ? 48 : 0; // 검색 영역
    const footerHeight = tableConfig.showFooter ? 56 : 0; // 페이지네이션
    const padding = 8; // 여백

    return headerHeight + displayPageSize * rowHeight + searchHeight + footerHeight + padding;
  };

  // 스타일 계산
  const componentStyle: React.CSSProperties = {
    width: "100%",
    height:
      tableConfig.height === "fixed"
        ? `${tableConfig.fixedHeight || calculateOptimalHeight()}px`
        : tableConfig.height === "auto"
          ? `${calculateOptimalHeight()}px`
          : "100%",
    ...component.style,
    ...style,
    display: "flex",
    flexDirection: "column",
  };

  // 디자인 모드 스타일
  if (isDesignMode) {
    componentStyle.border = "1px dashed #cbd5e1";
    componentStyle.borderColor = isSelected ? "#3b82f6" : "#cbd5e1";
    componentStyle.minHeight = "200px";
  }

  // 컬럼 라벨 정보 가져오기
  const fetchColumnLabels = async () => {
    if (!tableConfig.selectedTable) return;

    try {
      const columns = await tableTypeApi.getColumns(tableConfig.selectedTable);
      const labels: Record<string, string> = {};
      columns.forEach((column: any) => {
        labels[column.columnName] = column.displayName || column.columnName;
      });
      setColumnLabels(labels);
    } catch (error) {
      console.log("컬럼 라벨 정보를 가져올 수 없습니다:", error);
    }
  };

  // 테이블 라벨명 가져오기
  const fetchTableLabel = async () => {
    if (!tableConfig.selectedTable) return;

    try {
      const tables = await tableTypeApi.getTables();
      const table = tables.find((t: any) => t.tableName === tableConfig.selectedTable);
      if (table && table.displayName && table.displayName !== table.tableName) {
        setTableLabel(table.displayName);
      } else {
        setTableLabel(tableConfig.selectedTable);
      }
    } catch (error) {
      console.log("테이블 라벨 정보를 가져올 수 없습니다:", error);
      setTableLabel(tableConfig.selectedTable);
    }
  };

  // 테이블 데이터 가져오기
  const fetchTableData = async () => {
    if (!tableConfig.selectedTable) {
      setData([]);
      return;
    }

    setLoading(true);
    setError(null);

    try {
      // 🎯 Entity 조인 API 사용 - Entity 조인이 포함된 데이터 조회
      console.log("🔗 Entity 조인 데이터 조회 시작:", tableConfig.selectedTable);

      const result = await entityJoinApi.getTableDataWithJoins(tableConfig.selectedTable, {
        page: currentPage,
        size: localPageSize,
        search: searchTerm?.trim()
          ? (() => {
              // 스마트한 단일 컬럼 선택 로직 (서버가 OR 검색을 지원하지 않음)
              let searchColumn = selectedSearchColumn || sortColumn; // 사용자 선택 컬럼 최우선, 그 다음 정렬된 컬럼

              if (!searchColumn) {
                // 1순위: name 관련 컬럼 (가장 검색에 적합)
                const nameColumns = visibleColumns.filter(
                  (col) =>
                    col.columnName.toLowerCase().includes("name") ||
                    col.columnName.toLowerCase().includes("title") ||
                    col.columnName.toLowerCase().includes("subject"),
                );

                // 2순위: text/varchar 타입 컬럼
                const textColumns = visibleColumns.filter(
                  (col) => col.dataType === "text" || col.dataType === "varchar",
                );

                // 3순위: description 관련 컬럼
                const descColumns = visibleColumns.filter(
                  (col) =>
                    col.columnName.toLowerCase().includes("desc") ||
                    col.columnName.toLowerCase().includes("comment") ||
                    col.columnName.toLowerCase().includes("memo"),
                );

                // 우선순위에 따라 선택
                if (nameColumns.length > 0) {
                  searchColumn = nameColumns[0].columnName;
                } else if (textColumns.length > 0) {
                  searchColumn = textColumns[0].columnName;
                } else if (descColumns.length > 0) {
                  searchColumn = descColumns[0].columnName;
                } else {
                  // 마지막 대안: 첫 번째 컬럼
                  searchColumn = visibleColumns[0]?.columnName || "id";
                }
              }

              console.log("🔍 선택된 검색 컬럼:", searchColumn);
              console.log("🔍 검색어:", searchTerm);
              console.log(
                "🔍 사용 가능한 컬럼들:",
                visibleColumns.map((col) => `${col.columnName}(${col.dataType || "unknown"})`),
              );

              return { [searchColumn]: searchTerm };
            })()
          : undefined,
        sortBy: sortColumn || undefined,
        sortOrder: sortDirection,
        enableEntityJoin: true, // 🎯 Entity 조인 활성화
      });

      if (result) {
        setData(result.data || []);
        setTotalPages(result.totalPages || 1);
        setTotalItems(result.total || 0);

        // 🎯 Entity 조인 정보 로깅
        if (result.entityJoinInfo) {
          console.log("🔗 Entity 조인 적용됨:", {
            strategy: result.entityJoinInfo.strategy,
            joinConfigs: result.entityJoinInfo.joinConfigs,
            performance: result.entityJoinInfo.performance,
          });
        } else {
          console.log("🔗 Entity 조인 없음");
        }

        // 🎯 Entity 조인된 컬럼 처리
        let processedColumns = [...(tableConfig.columns || [])];

        // 초기 컬럼이 있으면 먼저 설정
        if (processedColumns.length > 0) {
          setDisplayColumns(processedColumns);
        }
        if (result.entityJoinInfo?.joinConfigs) {
          result.entityJoinInfo.joinConfigs.forEach((joinConfig) => {
            // 원본 컬럼을 조인된 컬럼으로 교체
            const originalColumnIndex = processedColumns.findIndex((col) => col.columnName === joinConfig.sourceColumn);

            if (originalColumnIndex !== -1) {
              console.log(`🔄 컬럼 교체: ${joinConfig.sourceColumn} → ${joinConfig.aliasColumn}`);
              processedColumns[originalColumnIndex] = {
                ...processedColumns[originalColumnIndex],
                columnName: joinConfig.aliasColumn, // dept_code → dept_code_name
                displayName: processedColumns[originalColumnIndex].displayName || joinConfig.aliasColumn,
                // isEntityJoined: true, // 🎯 임시 주석 처리 (타입 에러 해결 후 복원)
              } as ColumnConfig;
            }
          });
        }

        // 컬럼 정보가 없으면 첫 번째 데이터 행에서 추출
        if ((!processedColumns || processedColumns.length === 0) && result.data.length > 0) {
          const autoColumns: ColumnConfig[] = Object.keys(result.data[0]).map((key, index) => ({
            columnName: key,
            displayName: columnLabels[key] || key, // 라벨명 우선 사용
            visible: true,
            sortable: true,
            searchable: true,
            align: "left",
            format: "text",
            order: index,
          }));

          // 컴포넌트 설정 업데이트 (부모 컴포넌트에 알림)
          if (onFormDataChange) {
            onFormDataChange({
              ...component,
              config: {
                ...tableConfig,
                columns: autoColumns,
              },
            });
          }
          processedColumns = autoColumns;
        }

        // 🎯 표시할 컬럼 상태 업데이트
        setDisplayColumns(processedColumns);
      }
    } catch (err) {
      console.error("테이블 데이터 로딩 오류:", err);
      setError(err instanceof Error ? err.message : "데이터를 불러오는 중 오류가 발생했습니다.");
      setData([]);
    } finally {
      setLoading(false);
    }
  };

  // 페이지 변경
  const handlePageChange = (newPage: number) => {
    setCurrentPage(newPage);
  };

  // 정렬 변경
  const handleSort = (column: string) => {
    if (sortColumn === column) {
      setSortDirection(sortDirection === "asc" ? "desc" : "asc");
    } else {
      setSortColumn(column);
      setSortDirection("asc");
    }
  };

  // 검색
  const handleSearch = (term: string) => {
    setSearchTerm(term);
    setCurrentPage(1); // 검색 시 첫 페이지로 이동
  };

  // 새로고침
  const handleRefresh = () => {
    fetchTableData();
  };

  // 효과
  useEffect(() => {
    if (tableConfig.selectedTable) {
      fetchColumnLabels();
      fetchTableLabel();
    }
  }, [tableConfig.selectedTable]);

  // 컬럼 라벨이 로드되면 기존 컬럼의 displayName을 업데이트
  useEffect(() => {
    if (Object.keys(columnLabels).length > 0 && tableConfig.columns && tableConfig.columns.length > 0) {
      const updatedColumns = tableConfig.columns.map((col) => ({
        ...col,
        displayName: columnLabels[col.columnName] || col.displayName,
      }));

      // 부모 컴포넌트에 업데이트된 컬럼 정보 전달
      if (onFormDataChange) {
        onFormDataChange({
          ...component,
          componentConfig: {
            ...tableConfig,
            columns: updatedColumns,
          },
        });
      }
    }
  }, [columnLabels]);

  useEffect(() => {
    if (tableConfig.autoLoad && !isDesignMode) {
      fetchTableData();
    }
  }, [tableConfig.selectedTable, localPageSize, currentPage, searchTerm, sortColumn, sortDirection, columnLabels]);

  // 표시할 컬럼 계산 (Entity 조인 적용됨)
  const visibleColumns = useMemo(() => {
    if (!displayColumns || displayColumns.length === 0) {
      // displayColumns가 아직 설정되지 않은 경우 기본 컬럼 사용
      if (!tableConfig.columns) return [];
      return tableConfig.columns.filter((col) => col.visible).sort((a, b) => a.order - b.order);
    }
    return displayColumns.filter((col) => col.visible).sort((a, b) => a.order - b.order);
  }, [displayColumns, tableConfig.columns]);

  // 값 포맷팅
  const formatCellValue = (value: any, format?: string) => {
    if (value === null || value === undefined) return "";

    switch (format) {
      case "number":
        return typeof value === "number" ? value.toLocaleString() : value;
      case "currency":
        return typeof value === "number" ? `₩${value.toLocaleString()}` : value;
      case "date":
        return value instanceof Date ? value.toLocaleDateString() : value;
      case "boolean":
        return value ? "예" : "아니오";
      default:
        return String(value);
    }
  };

  // 이벤트 핸들러
  const handleClick = (e: React.MouseEvent) => {
    e.stopPropagation();
    onClick?.();
  };

  // 행 클릭 핸들러
  const handleRowClick = (row: any) => {
    if (tableConfig.onRowClick) {
      tableConfig.onRowClick(row);
    }
  };

  // DOM에 전달할 수 있는 기본 props만 정의
  const domProps = {
    onClick: handleClick,
    onDragStart,
    onDragEnd,
  };

  // 디자인 모드에서의 플레이스홀더
  if (isDesignMode && !tableConfig.selectedTable) {
    return (
      <div style={componentStyle} className={className} {...domProps}>
        <div className="flex h-full items-center justify-center rounded-lg border-2 border-dashed border-gray-300">
          <div className="text-center text-gray-500">
            <TableIcon className="mx-auto mb-2 h-8 w-8" />
            <div className="text-sm font-medium">테이블 리스트</div>
            <div className="text-xs text-gray-400">설정 패널에서 테이블을 선택해주세요</div>
          </div>
        </div>
      </div>
    );
  }

  return (
    <div style={componentStyle} className={cn("rounded-lg border bg-white shadow-sm", className)} {...domProps}>
      {/* 헤더 */}
      {tableConfig.showHeader && (
        <div className="flex items-center justify-between border-b p-4">
          <div className="flex items-center space-x-4">
            {(tableConfig.title || tableLabel) && (
              <h3 className="text-lg font-medium">{tableConfig.title || tableLabel}</h3>
            )}
          </div>

          <div className="flex items-center space-x-2">
            {/* 검색 */}
            {tableConfig.filter?.enabled && tableConfig.filter?.quickSearch && (
              <div className="flex items-center space-x-2">
                <div className="relative">
                  <Search className="absolute top-1/2 left-2 h-4 w-4 -translate-y-1/2 transform text-gray-400" />
                  <Input
                    placeholder="검색..."
                    value={searchTerm}
                    onChange={(e) => handleSearch(e.target.value)}
                    className="w-64 pl-8"
                  />
                </div>
                {/* 검색 컬럼 선택 드롭다운 */}
                {tableConfig.filter?.showColumnSelector && (
                  <select
                    value={selectedSearchColumn}
                    onChange={(e) => setSelectedSearchColumn(e.target.value)}
                    className="min-w-[120px] rounded border px-2 py-1 text-sm"
                  >
                    <option value="">자동 선택</option>
                    {visibleColumns.map((column) => (
                      <option key={column.columnName} value={column.columnName}>
                        {columnLabels[column.columnName] || column.displayName || column.columnName}
                      </option>
                    ))}
                  </select>
                )}
              </div>
            )}

            {/* 새로고침 */}
            <Button variant="outline" size="sm" onClick={handleRefresh} disabled={loading}>
              <RefreshCw className={cn("h-4 w-4", loading && "animate-spin")} />
            </Button>
          </div>
        </div>
      )}

      {/* 테이블 컨텐츠 */}
      <div className={`flex-1 ${localPageSize >= 50 ? "overflow-auto" : "overflow-hidden"}`}>
        {loading ? (
          <div className="flex h-full items-center justify-center">
            <div className="text-center">
              <RefreshCw className="mx-auto mb-2 h-8 w-8 animate-spin text-gray-400" />
              <div className="text-sm text-gray-500">데이터를 불러오는 중...</div>
            </div>
          </div>
        ) : error ? (
          <div className="flex h-full items-center justify-center">
            <div className="text-center text-red-500">
              <div className="text-sm">오류가 발생했습니다</div>
              <div className="mt-1 text-xs text-gray-400">{error}</div>
            </div>
          </div>
        ) : (
          <Table>
            <TableHeader className={tableConfig.stickyHeader ? "sticky top-0 z-10 bg-white" : ""}>
              <TableRow>
                {visibleColumns.map((column) => (
                  <TableHead
                    key={column.columnName}
                    style={{ width: column.width ? `${column.width}px` : undefined }}
                    className={cn(
                      "cursor-pointer select-none",
                      `text-${column.align}`,
                      column.sortable && "hover:bg-gray-50",
                    )}
                    onClick={() => column.sortable && handleSort(column.columnName)}
                  >
                    <div className="flex items-center space-x-1">
                      <span>{columnLabels[column.columnName] || column.displayName}</span>
                      {column.sortable && (
                        <div className="flex flex-col">
                          {sortColumn === column.columnName ? (
                            sortDirection === "asc" ? (
                              <ArrowUp className="h-3 w-3" />
                            ) : (
                              <ArrowDown className="h-3 w-3" />
                            )
                          ) : (
                            <ArrowUpDown className="h-3 w-3 text-gray-400" />
                          )}
                        </div>
                      )}
                    </div>
                  </TableHead>
                ))}
              </TableRow>
            </TableHeader>
            <TableBody>
              {data.length === 0 ? (
                <TableRow>
                  <TableCell colSpan={visibleColumns.length} className="py-8 text-center text-gray-500">
                    데이터가 없습니다
                  </TableCell>
                </TableRow>
              ) : (
                data.map((row, index) => (
                  <TableRow
                    key={index}
                    className={cn(
                      "cursor-pointer",
                      tableConfig.tableStyle?.hoverEffect && "hover:bg-gray-50",
                      tableConfig.tableStyle?.alternateRows && index % 2 === 1 && "bg-gray-50/50",
                    )}
                    onClick={() => handleRowClick(row)}
                  >
                    {visibleColumns.map((column) => (
                      <TableCell key={column.columnName} className={`text-${column.align}`}>
                        {formatCellValue(row[column.columnName], column.format)}
                      </TableCell>
                    ))}
                  </TableRow>
                ))
              )}
            </TableBody>
          </Table>
        )}
      </div>

      {/* 푸터/페이지네이션 */}
      {tableConfig.showFooter && tableConfig.pagination?.enabled && (
        <div className="flex items-center justify-between border-t p-4">
          <div className="text-sm text-gray-500">
            {tableConfig.pagination?.showPageInfo && (
              <span>
                전체 {totalItems.toLocaleString()}건 중 {(currentPage - 1) * localPageSize + 1}-
                {Math.min(currentPage * localPageSize, totalItems)} 표시
              </span>
            )}
          </div>

          <div className="flex items-center space-x-2">
            {/* 페이지 크기 선택 */}
            {tableConfig.pagination?.showSizeSelector && (
              <select
                value={localPageSize}
                onChange={(e) => {
                  const newPageSize = parseInt(e.target.value);

                  // 로컬 상태만 업데이트 (데이터베이스에 저장하지 않음)
                  setLocalPageSize(newPageSize);

                  // 페이지를 1로 리셋
                  setCurrentPage(1);

                  // 데이터는 useEffect에서 자동으로 다시 로드됨
                }}
                className="rounded border px-2 py-1 text-sm"
              >
                {tableConfig.pagination?.pageSizeOptions?.map((size) => (
                  <option key={size} value={size}>
                    {size}개씩
                  </option>
                ))}
              </select>
            )}

            {/* 페이지네이션 버튼 */}
            <div className="flex items-center space-x-1">
              <Button variant="outline" size="sm" onClick={() => handlePageChange(1)} disabled={currentPage === 1}>
                <ChevronsLeft className="h-4 w-4" />
              </Button>
              <Button
                variant="outline"
                size="sm"
                onClick={() => handlePageChange(currentPage - 1)}
                disabled={currentPage === 1}
              >
                <ChevronLeft className="h-4 w-4" />
              </Button>

              <span className="px-3 py-1 text-sm">
                {currentPage} / {totalPages}
              </span>

              <Button
                variant="outline"
                size="sm"
                onClick={() => handlePageChange(currentPage + 1)}
                disabled={currentPage === totalPages}
              >
                <ChevronRight className="h-4 w-4" />
              </Button>
              <Button
                variant="outline"
                size="sm"
                onClick={() => handlePageChange(totalPages)}
                disabled={currentPage === totalPages}
              >
                <ChevronsRight className="h-4 w-4" />
              </Button>
            </div>
          </div>
        </div>
      )}
    </div>
  );
};

/**
 * TableList 래퍼 컴포넌트
 * 추가적인 로직이나 상태 관리가 필요한 경우 사용
 */
export const TableListWrapper: React.FC<TableListComponentProps> = (props) => {
  return <TableListComponent {...props} />;
};