/**
 * 리포트 관리 컨트롤러
 */

import { Request, Response, NextFunction } from "express";
import reportService from "../services/reportService";
import {
  CreateReportRequest,
  UpdateReportRequest,
  SaveLayoutRequest,
  CreateTemplateRequest,
} from "../types/report";
import path from "path";
import fs from "fs";
import {
  Document,
  Packer,
  Paragraph,
  TextRun,
  ImageRun,
  Table,
  TableRow,
  TableCell,
  WidthType,
  AlignmentType,
  VerticalAlign,
  BorderStyle,
  PageOrientation,
  convertMillimetersToTwip,
} from "docx";

export class ReportController {
  /**
   * 리포트 목록 조회
   * GET /api/admin/reports
   */
  async getReports(req: Request, res: Response, next: NextFunction) {
    try {
      const {
        page = "1",
        limit = "20",
        searchText = "",
        reportType = "",
        useYn = "Y",
        sortBy = "created_at",
        sortOrder = "DESC",
      } = req.query;

      const result = await reportService.getReports({
        page: parseInt(page as string, 10),
        limit: parseInt(limit as string, 10),
        searchText: searchText as string,
        reportType: reportType as string,
        useYn: useYn as string,
        sortBy: sortBy as string,
        sortOrder: sortOrder as "ASC" | "DESC",
      });

      return res.json({
        success: true,
        data: result,
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 리포트 상세 조회
   * GET /api/admin/reports/:reportId
   */
  async getReportById(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;

      const report = await reportService.getReportById(reportId);

      if (!report) {
        return res.status(404).json({
          success: false,
          message: "리포트를 찾을 수 없습니다.",
        });
      }

      return res.json({
        success: true,
        data: report,
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 리포트 생성
   * POST /api/admin/reports
   */
  async createReport(req: Request, res: Response, next: NextFunction) {
    try {
      const data: CreateReportRequest = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      // 필수 필드 검증
      if (!data.reportNameKor || !data.reportType) {
        return res.status(400).json({
          success: false,
          message: "리포트명과 리포트 타입은 필수입니다.",
        });
      }

      const reportId = await reportService.createReport(data, userId);

      return res.status(201).json({
        success: true,
        data: {
          reportId,
        },
        message: "리포트가 생성되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 리포트 수정
   * PUT /api/admin/reports/:reportId
   */
  async updateReport(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;
      const data: UpdateReportRequest = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      const success = await reportService.updateReport(reportId, data, userId);

      if (!success) {
        return res.status(400).json({
          success: false,
          message: "수정할 내용이 없습니다.",
        });
      }

      return res.json({
        success: true,
        message: "리포트가 수정되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 리포트 삭제
   * DELETE /api/admin/reports/:reportId
   */
  async deleteReport(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;

      const success = await reportService.deleteReport(reportId);

      if (!success) {
        return res.status(404).json({
          success: false,
          message: "리포트를 찾을 수 없습니다.",
        });
      }

      return res.json({
        success: true,
        message: "리포트가 삭제되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 리포트 복사
   * POST /api/admin/reports/:reportId/copy
   */
  async copyReport(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;
      const userId = (req as any).user?.userId || "SYSTEM";

      const newReportId = await reportService.copyReport(reportId, userId);

      if (!newReportId) {
        return res.status(404).json({
          success: false,
          message: "리포트를 찾을 수 없습니다.",
        });
      }

      return res.status(201).json({
        success: true,
        data: {
          reportId: newReportId,
        },
        message: "리포트가 복사되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 레이아웃 조회
   * GET /api/admin/reports/:reportId/layout
   */
  async getLayout(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;

      const layout = await reportService.getLayout(reportId);

      if (!layout) {
        return res.status(404).json({
          success: false,
          message: "레이아웃을 찾을 수 없습니다.",
        });
      }

      // components 컬럼에서 JSON 파싱
      const parsedComponents = layout.components ? JSON.parse(layout.components) : null;

      let layoutData;
      // 새 구조 (layoutConfig.pages)인지 확인
      if (parsedComponents && parsedComponents.pages && Array.isArray(parsedComponents.pages)) {
        // pages 배열을 직접 포함하여 반환
        layoutData = {
          ...layout,
          pages: parsedComponents.pages,
          components: [], // 호환성을 위해 빈 배열
        };
      } else {
        // 기존 구조: components 배열
        layoutData = {
          ...layout,
          components: parsedComponents || [],
        };
      }

      return res.json({
        success: true,
        data: layoutData,
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 레이아웃 저장
   * PUT /api/admin/reports/:reportId/layout
   */
  async saveLayout(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;
      const data: SaveLayoutRequest = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      // 필수 필드 검증 (페이지 기반 구조)
      if (!data.layoutConfig || !data.layoutConfig.pages || data.layoutConfig.pages.length === 0) {
        return res.status(400).json({
          success: false,
          message: "레이아웃 설정이 필요합니다.",
        });
      }

      await reportService.saveLayout(reportId, data, userId);

      return res.json({
        success: true,
        message: "레이아웃이 저장되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 템플릿 목록 조회
   * GET /api/admin/reports/templates
   */
  async getTemplates(req: Request, res: Response, next: NextFunction) {
    try {
      const templates = await reportService.getTemplates();

      return res.json({
        success: true,
        data: templates,
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 템플릿 생성
   * POST /api/admin/reports/templates
   */
  async createTemplate(req: Request, res: Response, next: NextFunction) {
    try {
      const data: CreateTemplateRequest = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      // 필수 필드 검증
      if (!data.templateNameKor || !data.templateType) {
        return res.status(400).json({
          success: false,
          message: "템플릿명과 템플릿 타입은 필수입니다.",
        });
      }

      const templateId = await reportService.createTemplate(data, userId);

      return res.status(201).json({
        success: true,
        data: {
          templateId,
        },
        message: "템플릿이 생성되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 현재 리포트를 템플릿으로 저장
   * POST /api/admin/reports/:reportId/save-as-template
   */
  async saveAsTemplate(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId } = req.params;
      const { templateNameKor, templateNameEng, description } = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      // 필수 필드 검증
      if (!templateNameKor) {
        return res.status(400).json({
          success: false,
          message: "템플릿명은 필수입니다.",
        });
      }

      const templateId = await reportService.saveAsTemplate(
        reportId,
        templateNameKor,
        templateNameEng,
        description,
        userId
      );

      return res.status(201).json({
        success: true,
        data: {
          templateId,
        },
        message: "템플릿이 저장되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 레이아웃 데이터로 직접 템플릿 생성 (리포트 저장 불필요)
   * POST /api/admin/reports/templates/create-from-layout
   */
  async createTemplateFromLayout(
    req: Request,
    res: Response,
    next: NextFunction
  ) {
    try {
      const {
        templateNameKor,
        templateNameEng,
        templateType,
        description,
        layoutConfig,
        defaultQueries = [],
      } = req.body;
      const userId = (req as any).user?.userId || "SYSTEM";

      // 필수 필드 검증
      if (!templateNameKor) {
        return res.status(400).json({
          success: false,
          message: "템플릿명은 필수입니다.",
        });
      }

      if (!layoutConfig) {
        return res.status(400).json({
          success: false,
          message: "레이아웃 설정은 필수입니다.",
        });
      }

      const templateId = await reportService.createTemplateFromLayout(
        templateNameKor,
        templateNameEng,
        templateType || "GENERAL",
        description,
        layoutConfig,
        defaultQueries,
        userId
      );

      return res.status(201).json({
        success: true,
        data: {
          templateId,
        },
        message: "템플릿이 생성되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 템플릿 삭제
   * DELETE /api/admin/reports/templates/:templateId
   */
  async deleteTemplate(req: Request, res: Response, next: NextFunction) {
    try {
      const { templateId } = req.params;

      const success = await reportService.deleteTemplate(templateId);

      if (!success) {
        return res.status(404).json({
          success: false,
          message: "템플릿을 찾을 수 없거나 시스템 템플릿입니다.",
        });
      }

      return res.json({
        success: true,
        message: "템플릿이 삭제되었습니다.",
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 쿼리 실행
   * POST /api/admin/reports/:reportId/queries/:queryId/execute
   */
  async executeQuery(req: Request, res: Response, next: NextFunction) {
    try {
      const { reportId, queryId } = req.params;
      const { parameters = {}, sqlQuery, externalConnectionId } = req.body;

      const result = await reportService.executeQuery(
        reportId,
        queryId,
        parameters,
        sqlQuery,
        externalConnectionId
      );

      return res.json({
        success: true,
        data: result,
      });
    } catch (error: any) {
      return res.status(400).json({
        success: false,
        message: error.message || "쿼리 실행에 실패했습니다.",
      });
    }
  }

  /**
   * 외부 DB 연결 목록 조회 (활성화된 것만)
   * GET /api/admin/reports/external-connections
   */
  async getExternalConnections(
    req: Request,
    res: Response,
    next: NextFunction
  ) {
    try {
      const { ExternalDbConnectionService } = await import(
        "../services/externalDbConnectionService"
      );

      const result = await ExternalDbConnectionService.getConnections({
        is_active: "Y",
        company_code: req.body.companyCode || "",
      });

      return res.json(result);
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 이미지 파일 업로드
   * POST /api/admin/reports/upload-image
   */
  async uploadImage(req: Request, res: Response, next: NextFunction) {
    try {
      if (!req.file) {
        return res.status(400).json({
          success: false,
          message: "이미지 파일이 필요합니다.",
        });
      }

      const companyCode = req.body.companyCode || "SYSTEM";
      const file = req.file;

      // 파일 저장 경로 생성
      const uploadDir = path.join(
        process.cwd(),
        "uploads",
        `company_${companyCode}`,
        "reports"
      );

      // 디렉토리가 없으면 생성
      if (!fs.existsSync(uploadDir)) {
        fs.mkdirSync(uploadDir, { recursive: true });
      }

      // 고유한 파일명 생성 (타임스탬프 + 원본 파일명)
      const timestamp = Date.now();
      const safeFileName = file.originalname.replace(/[^a-zA-Z0-9._-]/g, "_");
      const fileName = `${timestamp}_${safeFileName}`;
      const filePath = path.join(uploadDir, fileName);

      // 파일 저장
      fs.writeFileSync(filePath, file.buffer);

      // 웹에서 접근 가능한 URL 반환
      const fileUrl = `/uploads/company_${companyCode}/reports/${fileName}`;

      return res.json({
        success: true,
        data: {
          fileName,
          fileUrl,
          originalName: file.originalname,
          size: file.size,
          mimeType: file.mimetype,
        },
      });
    } catch (error) {
      return next(error);
    }
  }

  /**
   * 컴포넌트 데이터를 WORD(DOCX)로 변환
   * POST /api/admin/reports/export-word
   */
  async exportToWord(req: Request, res: Response, next: NextFunction) {
    try {
      const { layoutConfig, queryResults, fileName = "리포트" } = req.body;

      if (!layoutConfig || !layoutConfig.pages) {
        return res.status(400).json({
          success: false,
          message: "레이아웃 데이터가 필요합니다.",
        });
      }

      // mm를 twip으로 변환
      const mmToTwip = (mm: number) => convertMillimetersToTwip(mm);
      // px를 twip으로 변환 (1px = 15twip at 96DPI)
      const pxToTwip = (px: number) => Math.round(px * 15);

      // 쿼리 결과 맵
      const queryResultsMap: Record<string, { fields: string[]; rows: Record<string, unknown>[] }> =
        queryResults || {};

      // 컴포넌트 값 가져오기
      const getComponentValue = (component: any): string => {
        if (component.queryId && component.fieldName) {
          const queryResult = queryResultsMap[component.queryId];
          if (queryResult && queryResult.rows && queryResult.rows.length > 0) {
            const value = queryResult.rows[0][component.fieldName];
            if (value !== null && value !== undefined) {
              return String(value);
            }
          }
          return `{${component.fieldName}}`;
        }
        return component.defaultValue || "";
      };

      // px → half-point 변환 (1px = 0.75pt, Word는 half-pt 단위 사용)
      // px * 0.75 * 2 = px * 1.5
      const pxToHalfPt = (px: number) => Math.round(px * 1.5);

      // 셀 내용 생성 헬퍼 함수 (가로 배치용)
      const createCellContent = (
        component: any,
        displayValue: string,
        pxToHalfPtFn: (px: number) => number,
        pxToTwipFn: (px: number) => number,
        queryResultsMapRef: Record<string, { fields: string[]; rows: Record<string, unknown>[] }>,
        AlignmentTypeRef: typeof AlignmentType,
        VerticalAlignRef: typeof VerticalAlign,
        BorderStyleRef: typeof BorderStyle,
        ParagraphRef: typeof Paragraph,
        TextRunRef: typeof TextRun,
        ImageRunRef: typeof ImageRun,
        TableRef: typeof Table,
        TableRowRef: typeof TableRow,
        TableCellRef: typeof TableCell,
        pageIndex: number = 0,
        totalPages: number = 1
      ): (Paragraph | Table)[] => {
        const result: (Paragraph | Table)[] = [];

        // Text/Label
        if (component.type === "text" || component.type === "label") {
          const fontSizeHalfPt = pxToHalfPtFn(component.fontSize || 13);
          const alignment =
            component.textAlign === "center"
              ? AlignmentTypeRef.CENTER
              : component.textAlign === "right"
                ? AlignmentTypeRef.RIGHT
                : AlignmentTypeRef.LEFT;

          // 줄바꿈 처리: \n으로 split하여 각 줄을 TextRun으로 생성
          const lines = displayValue.split("\n");
          const textChildren: TextRun[] = [];
          lines.forEach((line: string, index: number) => {
            if (index > 0) {
              // 줄바꿈 추가 (break: 1은 줄바꿈 1개)
              textChildren.push(new TextRunRef({ break: 1 }));
            }
            textChildren.push(
              new TextRunRef({
                text: line,
                size: fontSizeHalfPt,
                color: (component.fontColor || "#000000").replace("#", ""),
                bold: component.fontWeight === "bold" || component.fontWeight === "600",
                font: "맑은 고딕",
              })
            );
          });

          result.push(
            new ParagraphRef({
              alignment,
              children: textChildren,
            })
          );
        }

        // Image
        else if (component.type === "image" && component.imageBase64) {
          try {
            const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
            const imageBuffer = Buffer.from(base64Data, "base64");
            result.push(
              new ParagraphRef({
                children: [
                  new ImageRunRef({
                    data: imageBuffer,
                    transformation: {
                      width: Math.round(component.width * 0.75),
                      height: Math.round(component.height * 0.75),
                    },
                    type: "png",
                  }),
                ],
              })
            );
          } catch (e) {
            result.push(new ParagraphRef({ children: [] }));
          }
        }

        // Signature
        else if (component.type === "signature") {
          const sigFontSize = pxToHalfPtFn(component.fontSize || 12);
          const textRuns: TextRun[] = [];
          if (component.showLabel !== false) {
            textRuns.push(new TextRunRef({ text: (component.labelText || "서명:") + " ", size: sigFontSize, font: "맑은 고딕" }));
          }
          if (component.imageBase64) {
            try {
              const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
              const imageBuffer = Buffer.from(base64Data, "base64");
              result.push(
                new ParagraphRef({
                  children: [
                    ...textRuns,
                    new ImageRunRef({
                      data: imageBuffer,
                      transformation: { width: Math.round(component.width * 0.75), height: Math.round(component.height * 0.75) },
                      type: "png",
                    }),
                  ],
                })
              );
            } catch (e) {
              textRuns.push(new TextRunRef({ text: "_".repeat(20), size: sigFontSize, font: "맑은 고딕" }));
              result.push(new ParagraphRef({ children: textRuns }));
            }
          } else {
            textRuns.push(new TextRunRef({ text: "_".repeat(20), size: sigFontSize, font: "맑은 고딕" }));
            result.push(new ParagraphRef({ children: textRuns }));
          }
        }

        // Stamp
        else if (component.type === "stamp") {
          const stampFontSize = pxToHalfPtFn(component.fontSize || 12);
          const textRuns: TextRun[] = [];
          if (component.personName) {
            textRuns.push(new TextRunRef({ text: component.personName + " ", size: stampFontSize, font: "맑은 고딕" }));
          }
          if (component.imageBase64) {
            try {
              const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
              const imageBuffer = Buffer.from(base64Data, "base64");
              result.push(
                new ParagraphRef({
                  children: [
                    ...textRuns,
                    new ImageRunRef({
                      data: imageBuffer,
                      transformation: { width: Math.round(Math.min(component.width, component.height) * 0.75), height: Math.round(Math.min(component.width, component.height) * 0.75) },
                      type: "png",
                    }),
                  ],
                })
              );
            } catch (e) {
              textRuns.push(new TextRunRef({ text: "(인)", color: "DC2626", size: stampFontSize, font: "맑은 고딕" }));
              result.push(new ParagraphRef({ children: textRuns }));
            }
          } else {
            textRuns.push(new TextRunRef({ text: "(인)", color: "DC2626", size: stampFontSize, font: "맑은 고딕" }));
            result.push(new ParagraphRef({ children: textRuns }));
          }
        }

        // PageNumber
        else if (component.type === "pageNumber") {
          const format = component.pageNumberFormat || "number";
          const currentPageNum = pageIndex + 1;
          let pageNumberText = "";
          switch (format) {
            case "number":
              pageNumberText = `${currentPageNum}`;
              break;
            case "numberTotal":
              pageNumberText = `${currentPageNum} / ${totalPages}`;
              break;
            case "koreanNumber":
              pageNumberText = `${currentPageNum} 페이지`;
              break;
            default:
              pageNumberText = `${currentPageNum}`;
          }
          const fontSizeHalfPt = pxToHalfPtFn(component.fontSize || 13);
          const alignment =
            component.textAlign === "center"
              ? AlignmentTypeRef.CENTER
              : component.textAlign === "right"
                ? AlignmentTypeRef.RIGHT
                : AlignmentTypeRef.LEFT;
          result.push(
            new ParagraphRef({
              alignment,
              children: [
                new TextRunRef({
                  text: pageNumberText,
                  size: fontSizeHalfPt,
                  color: (component.fontColor || "#000000").replace("#", ""),
                  font: "맑은 고딕",
                }),
              ],
            })
          );
        }

        // Divider - 테이블 셀로 감싸서 정확한 너비 적용
        else if (component.type === "divider" && component.orientation === "horizontal") {
          result.push(
            new ParagraphRef({
              border: {
                bottom: {
                  color: (component.lineColor || "#000000").replace("#", ""),
                  space: 1,
                  style: BorderStyleRef.SINGLE,
                  size: (component.lineWidth || 1) * 8,
                },
              },
              children: [],
            })
          );
        }

        // 기타 (빈 paragraph)
        else {
          result.push(new ParagraphRef({ children: [] }));
        }

        return result;
      };

      // 섹션 생성 (페이지별)
      const sortedPages = layoutConfig.pages.sort((a: any, b: any) => a.page_order - b.page_order);
      const totalPagesCount = sortedPages.length;

      const sections = sortedPages
        .map((page: any, pageIndex: number) => {
          const pageWidthTwip = mmToTwip(page.width);
          const pageHeightTwip = mmToTwip(page.height);
          const marginTopMm = page.margins?.top || 10;
          const marginBottomMm = page.margins?.bottom || 10;
          const marginLeftMm = page.margins?.left || 10;
          const marginRightMm = page.margins?.right || 10;

          const marginTop = mmToTwip(marginTopMm);
          const marginBottom = mmToTwip(marginBottomMm);
          const marginLeft = mmToTwip(marginLeftMm);
          const marginRight = mmToTwip(marginRightMm);

          // 마진을 px로 변환 (1mm ≈ 3.78px at 96 DPI)
          const marginLeftPx = marginLeftMm * 3.78;
          const marginTopPx = marginTopMm * 3.78;

          // 컴포넌트를 Y좌표순으로 정렬
          const sortedComponents = [...(page.components || [])].sort(
            (a: any, b: any) => a.y - b.y
          );

          // 같은 Y좌표 범위(±30px)의 컴포넌트들을 그룹화
          const Y_GROUP_THRESHOLD = 30; // px
          const componentGroups: any[][] = [];
          let currentGroup: any[] = [];
          let groupBaseY = -Infinity;

          for (const comp of sortedComponents) {
            const compY = comp.y - marginTopPx;
            if (currentGroup.length === 0) {
              currentGroup.push(comp);
              groupBaseY = compY;
            } else if (Math.abs(compY - groupBaseY) <= Y_GROUP_THRESHOLD) {
              currentGroup.push(comp);
            } else {
              componentGroups.push(currentGroup);
              currentGroup = [comp];
              groupBaseY = compY;
            }
          }
          if (currentGroup.length > 0) {
            componentGroups.push(currentGroup);
          }

          // 컴포넌트를 Paragraph/Table로 변환
          const children: (Paragraph | Table)[] = [];

          // Y좌표를 spacing으로 변환하기 위한 추적 변수
          let lastBottomY = 0;

          // 각 그룹 처리
          for (const group of componentGroups) {
            // 그룹 내 컴포넌트들을 X좌표 순으로 정렬
            const sortedGroup = [...group].sort((a: any, b: any) => a.x - b.x);

            // 그룹의 Y 좌표 (첫 번째 컴포넌트 기준)
            const groupY = Math.max(0, sortedGroup[0].y - marginTopPx);
            const groupHeight = Math.max(...sortedGroup.map((c: any) => c.height));

            // spacing 계산
            const gapFromPrevious = Math.max(0, groupY - lastBottomY);
            const spacingBefore = pxToTwip(gapFromPrevious);

            // 그룹에 컴포넌트가 여러 개면 하나의 테이블 행으로 배치
            if (sortedGroup.length > 1) {
              // spacing을 위한 빈 paragraph
              if (spacingBefore > 0) {
                children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, children: [] }));
              }

              // 각 컴포넌트를 셀로 변환
              const cells: TableCell[] = [];
              let prevEndX = 0;

              for (const component of sortedGroup) {
                const adjustedX = Math.max(0, component.x - marginLeftPx);
                const displayValue = getComponentValue(component);

                // 이전 셀과의 간격을 위한 빈 셀 추가
                if (adjustedX > prevEndX + 5) {
                  const gapWidth = adjustedX - prevEndX;
                  cells.push(
                    new TableCell({
                      children: [new Paragraph({ children: [] })],
                      width: { size: pxToTwip(gapWidth), type: WidthType.DXA },
                      borders: {
                        top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                        bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                        left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                        right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                      },
                    })
                  );
                }

                // 컴포넌트 셀 생성
                const cellContent = createCellContent(component, displayValue, pxToHalfPt, pxToTwip, queryResultsMap, AlignmentType, VerticalAlign, BorderStyle, Paragraph, TextRun, ImageRun, Table, TableRow, TableCell, pageIndex, totalPagesCount);
                cells.push(
                  new TableCell({
                    children: cellContent,
                    width: { size: pxToTwip(component.width), type: WidthType.DXA },
                    borders: {
                      top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                      bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                      left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                      right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    },
                    verticalAlign: VerticalAlign.TOP,
                  })
                );
                prevEndX = adjustedX + component.width;
              }

              // 테이블 행 생성
              const rowTable = new Table({
                rows: [new TableRow({ children: cells })],
                width: { size: 100, type: WidthType.PERCENTAGE },
                borders: {
                  top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideHorizontal: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideVertical: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                },
              });
              children.push(rowTable);
              lastBottomY = groupY + groupHeight;
              continue;
            }

            // 단일 컴포넌트 처리 (기존 로직)
            const component = sortedGroup[0];
            const displayValue = getComponentValue(component);
            const adjustedX = Math.max(0, component.x - marginLeftPx);
            const adjustedY = groupY;

            // X좌표를 indent로 변환 (마진 제외한 순수 들여쓰기)
            const indentLeft = pxToTwip(adjustedX);

            // Text/Label 컴포넌트 - 테이블 셀로 감싸서 width 내 줄바꿈 적용
            if (component.type === "text" || component.type === "label") {
              const fontSizeHalfPt = pxToHalfPt(component.fontSize || 13);
              const alignment =
                component.textAlign === "center"
                  ? AlignmentType.CENTER
                  : component.textAlign === "right"
                    ? AlignmentType.RIGHT
                    : AlignmentType.LEFT;

              // 줄바꿈 처리: \n으로 split하여 각 줄을 TextRun으로 생성
              const lines = displayValue.split("\n");
              const textChildren: TextRun[] = [];
              lines.forEach((line: string, index: number) => {
                if (index > 0) {
                  textChildren.push(new TextRun({ break: 1 }));
                }
                textChildren.push(
                  new TextRun({
                    text: line,
                    size: fontSizeHalfPt,
                    color: (component.fontColor || "#000000").replace("#", ""),
                    bold: component.fontWeight === "bold" || component.fontWeight === "600",
                    font: "맑은 고딕",
                  })
                );
              });

              // 테이블 셀로 감싸서 width 제한 → 자동 줄바꿈
              const textCell = new TableCell({
                children: [
                  new Paragraph({
                    alignment,
                    children: textChildren,
                  }),
                ],
                width: { size: pxToTwip(component.width), type: WidthType.DXA },
                borders: {
                  top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                },
                verticalAlign: VerticalAlign.TOP,
              });

              const textTable = new Table({
                rows: [new TableRow({ children: [textCell] })],
                width: { size: pxToTwip(component.width), type: WidthType.DXA },
                indent: { size: indentLeft, type: WidthType.DXA },
                borders: {
                  top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideHorizontal: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideVertical: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                },
              });

              // spacing을 위한 빈 paragraph
              if (spacingBefore > 0) {
                children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, children: [] }));
              }
              children.push(textTable);
              lastBottomY = adjustedY + component.height;
            }

            // Image 컴포넌트
            else if (component.type === "image" && component.imageBase64) {
              try {
                const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
                const imageBuffer = Buffer.from(base64Data, "base64");

                const paragraph = new Paragraph({
                  spacing: { before: spacingBefore, after: 0 },
                  indent: { left: indentLeft },
                  children: [
                    new ImageRun({
                      data: imageBuffer,
                      transformation: {
                        width: Math.round(component.width * 0.75),
                        height: Math.round(component.height * 0.75),
                      },
                      type: "png",
                    }),
                  ],
                });
                children.push(paragraph);
                lastBottomY = adjustedY + component.height;
              } catch (imgError) {
                console.error("이미지 처리 오류:", imgError);
              }
            }

            // Divider 컴포넌트 - 테이블 셀로 감싸서 정확한 위치와 너비 적용
            else if (component.type === "divider") {
              if (component.orientation === "horizontal") {
                // spacing을 위한 빈 paragraph
                if (spacingBefore > 0) {
                  children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, children: [] }));
                }

                // 테이블 셀로 감싸서 너비 제한
                const dividerCell = new TableCell({
                  children: [
                    new Paragraph({
                      border: {
                        bottom: {
                          color: (component.lineColor || "#000000").replace("#", ""),
                          space: 1,
                          style: BorderStyle.SINGLE,
                          size: (component.lineWidth || 1) * 8,
                        },
                      },
                      children: [],
                    }),
                  ],
                  width: { size: pxToTwip(component.width), type: WidthType.DXA },
                  borders: {
                    top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  },
                });

                const dividerTable = new Table({
                  rows: [new TableRow({ children: [dividerCell] })],
                  width: { size: pxToTwip(component.width), type: WidthType.DXA },
                  indent: { size: indentLeft, type: WidthType.DXA },
                  borders: {
                    top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    insideHorizontal: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                    insideVertical: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  },
                });
                children.push(dividerTable);
                lastBottomY = adjustedY + component.height;
              }
            }

            // Signature 컴포넌트
            else if (component.type === "signature") {
              const labelText = component.labelText || "서명:";
              const showLabel = component.showLabel !== false;
              const sigFontSize = pxToHalfPt(component.fontSize || 12);
              const textRuns: TextRun[] = [];

              if (showLabel) {
                textRuns.push(
                  new TextRun({
                    text: labelText + " ",
                    size: sigFontSize,
                    font: "맑은 고딕",
                  })
                );
              }

              if (component.imageBase64) {
                try {
                  const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
                  const imageBuffer = Buffer.from(base64Data, "base64");

                  const paragraph = new Paragraph({
                    spacing: { before: spacingBefore, after: 0 },
                    indent: { left: indentLeft },
                    children: [
                      ...textRuns,
                      new ImageRun({
                        data: imageBuffer,
                        transformation: {
                          width: Math.round(component.width * 0.75),
                          height: Math.round(component.height * 0.75),
                        },
                        type: "png",
                      }),
                    ],
                  });
                  children.push(paragraph);
                } catch (imgError) {
                  console.error("서명 이미지 오류:", imgError);
                  textRuns.push(new TextRun({ text: "_".repeat(20), size: sigFontSize, font: "맑은 고딕" }));
                  children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, indent: { left: indentLeft }, children: textRuns }));
                }
              } else {
                textRuns.push(new TextRun({ text: "_".repeat(20), size: sigFontSize, font: "맑은 고딕" }));
                children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, indent: { left: indentLeft }, children: textRuns }));
              }
              lastBottomY = adjustedY + component.height;
            }

            // Stamp 컴포넌트
            else if (component.type === "stamp") {
              const personName = component.personName || "";
              const stampFontSize = pxToHalfPt(component.fontSize || 12);
              const textRuns: TextRun[] = [];

              if (personName) {
                textRuns.push(
                  new TextRun({
                    text: personName + " ",
                    size: stampFontSize,
                    font: "맑은 고딕",
                  })
                );
              }

              if (component.imageBase64) {
                try {
                  const base64Data = component.imageBase64.split(",")[1] || component.imageBase64;
                  const imageBuffer = Buffer.from(base64Data, "base64");

                  const paragraph = new Paragraph({
                    spacing: { before: spacingBefore, after: 0 },
                    indent: { left: indentLeft },
                    children: [
                      ...textRuns,
                      new ImageRun({
                        data: imageBuffer,
                        transformation: {
                          width: Math.round(Math.min(component.width, component.height) * 0.75),
                          height: Math.round(Math.min(component.width, component.height) * 0.75),
                        },
                        type: "png",
                      }),
                    ],
                  });
                  children.push(paragraph);
                } catch (imgError) {
                  console.error("도장 이미지 오류:", imgError);
                  textRuns.push(new TextRun({ text: "(인)", color: "DC2626", size: stampFontSize, font: "맑은 고딕" }));
                  children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, indent: { left: indentLeft }, children: textRuns }));
                }
              } else {
                textRuns.push(new TextRun({ text: "(인)", color: "DC2626", size: stampFontSize, font: "맑은 고딕" }));
                children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, indent: { left: indentLeft }, children: textRuns }));
              }
              lastBottomY = adjustedY + component.height;
            }

            // PageNumber 컴포넌트 - 테이블 셀로 감싸서 정확한 위치 적용
            else if (component.type === "pageNumber") {
              const format = component.pageNumberFormat || "number";
              const currentPageNum = pageIndex + 1;
              let pageNumberText = "";
              switch (format) {
                case "number":
                  pageNumberText = `${currentPageNum}`;
                  break;
                case "numberTotal":
                  pageNumberText = `${currentPageNum} / ${totalPagesCount}`;
                  break;
                case "koreanNumber":
                  pageNumberText = `${currentPageNum} 페이지`;
                  break;
                default:
                  pageNumberText = `${currentPageNum}`;
              }
              const pageNumFontSize = pxToHalfPt(component.fontSize || 13);
              const alignment =
                component.textAlign === "center"
                  ? AlignmentType.CENTER
                  : component.textAlign === "right"
                    ? AlignmentType.RIGHT
                    : AlignmentType.LEFT;

              // 테이블 셀로 감싸서 width와 indent 정확히 적용
              const pageNumCell = new TableCell({
                children: [
                  new Paragraph({
                    alignment,
                    children: [
                      new TextRun({
                        text: pageNumberText,
                        size: pageNumFontSize,
                        color: (component.fontColor || "#000000").replace("#", ""),
                        font: "맑은 고딕",
                      }),
                    ],
                  }),
                ],
                width: { size: pxToTwip(component.width), type: WidthType.DXA },
                borders: {
                  top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                },
                verticalAlign: VerticalAlign.TOP,
              });

              const pageNumTable = new Table({
                rows: [new TableRow({ children: [pageNumCell] })],
                width: { size: pxToTwip(component.width), type: WidthType.DXA },
                indent: { size: indentLeft, type: WidthType.DXA },
                borders: {
                  top: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  bottom: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  left: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  right: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideHorizontal: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                  insideVertical: { style: BorderStyle.NONE, size: 0, color: "FFFFFF" },
                },
              });

              // spacing을 위한 빈 paragraph
              if (spacingBefore > 0) {
                children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, children: [] }));
              }
              children.push(pageNumTable);
              lastBottomY = adjustedY + component.height;
            }

            // Table 컴포넌트
            else if (component.type === "table" && component.queryId) {
              const queryResult = queryResultsMap[component.queryId];
              if (queryResult && queryResult.rows && queryResult.rows.length > 0) {
                // 테이블 앞에 spacing과 indent를 위한 빈 paragraph 추가
                if (spacingBefore > 0 || indentLeft > 0) {
                  children.push(new Paragraph({ spacing: { before: spacingBefore, after: 0 }, indent: { left: indentLeft }, children: [] }));
                }

                const columns =
                  component.tableColumns && component.tableColumns.length > 0
                    ? component.tableColumns
                    : queryResult.fields.map((field: string) => ({
                        field,
                        header: field,
                        align: "left",
                        width: undefined,
                      }));

                // 테이블 폰트 사이즈 (기본 12px)
                const tableFontSize = pxToHalfPt(component.fontSize || 12);

                // 헤더 행
                const headerCells = columns.map(
                  (col: { header: string; align?: string }) =>
                    new TableCell({
                      children: [
                        new Paragraph({
                          alignment:
                            col.align === "center"
                              ? AlignmentType.CENTER
                              : col.align === "right"
                                ? AlignmentType.RIGHT
                                : AlignmentType.LEFT,
                          children: [
                            new TextRun({
                              text: col.header,
                              bold: true,
                              size: tableFontSize,
                              font: "맑은 고딕",
                            }),
                          ],
                        }),
                      ],
                      shading: {
                        fill: (component.headerBackgroundColor || "#f3f4f6").replace("#", ""),
                      },
                      verticalAlign: VerticalAlign.CENTER,
                    })
                );
                const headerRow = new TableRow({ children: headerCells });

                // 데이터 행
                const dataRows = queryResult.rows.map(
                  (row: Record<string, unknown>) =>
                    new TableRow({
                      children: columns.map(
                        (col: { field: string; align?: string }) =>
                          new TableCell({
                            children: [
                              new Paragraph({
                                alignment:
                                  col.align === "center"
                                    ? AlignmentType.CENTER
                                    : col.align === "right"
                                      ? AlignmentType.RIGHT
                                      : AlignmentType.LEFT,
                                children: [
                                  new TextRun({
                                    text: String(row[col.field] ?? ""),
                                    size: tableFontSize,
                                    font: "맑은 고딕",
                                  }),
                                ],
                              }),
                            ],
                            verticalAlign: VerticalAlign.CENTER,
                          })
                      ),
                    })
                );

                const table = new Table({
                  width: { size: pxToTwip(component.width), type: WidthType.DXA },
                  indent: { size: indentLeft, type: WidthType.DXA },
                  rows: [headerRow, ...dataRows],
                });
                children.push(table);
                lastBottomY = adjustedY + component.height;
              }
            }
          }

          // 빈 페이지 방지
          if (children.length === 0) {
            children.push(new Paragraph({ children: [] }));
          }

          return {
            properties: {
              page: {
                size: {
                  width: pageWidthTwip,
                  height: pageHeightTwip,
                  orientation:
                    page.width > page.height ? PageOrientation.LANDSCAPE : PageOrientation.PORTRAIT,
                },
                margin: {
                  top: marginTop,
                  bottom: marginBottom,
                  left: marginLeft,
                  right: marginRight,
                },
              },
            },
            children,
          };
        });

      // Document 생성
      const doc = new Document({
        sections,
      });

      // Buffer로 변환
      const docxBuffer = await Packer.toBuffer(doc);

      // 파일명 인코딩 (한글 지원)
      const timestamp = new Date().toISOString().slice(0, 10);
      const safeFileName = encodeURIComponent(`${fileName}_${timestamp}.docx`);

      // DOCX 파일로 응답
      res.setHeader(
        "Content-Type",
        "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
      );
      res.setHeader(
        "Content-Disposition",
        `attachment; filename*=UTF-8''${safeFileName}`
      );
      res.setHeader("Content-Length", docxBuffer.length);

      return res.send(docxBuffer);
    } catch (error: any) {
      console.error("WORD 변환 오류:", error);
      return res.status(500).json({
        success: false,
        message: error.message || "WORD 변환에 실패했습니다.",
      });
    }
  }
}

export default new ReportController();