using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using Excel = Microsoft.Office.Interop.Excel;

namespace DwgExtractorManual.Models
{
    /// <summary>
    /// Excel ��Ʈ�� �����͸� ���� �۾��� ����ϴ� Ŭ����
    /// </summary>
    internal class ExcelDataWriter
    {
        private readonly ExcelManager excelManager;

        public ExcelDataWriter(ExcelManager excelManager)
        {
            this.excelManager = excelManager ?? throw new ArgumentNullException(nameof(excelManager));
        }

        /// <summary>
        /// Title Block �����͸� Excel ��Ʈ�� ���
        /// </summary>
        public void WriteTitleBlockData(List<TitleBlockRowData> titleBlockRows)
        {
            if (excelManager.TitleBlockSheet == null || titleBlockRows == null || titleBlockRows.Count == 0)
                return;

            int currentRow = 2; // ��� ���� ����� ����

            foreach (var row in titleBlockRows)
            {
                excelManager.TitleBlockSheet.Cells[currentRow, 1] = row.Type;
                excelManager.TitleBlockSheet.Cells[currentRow, 2] = row.Name;
                excelManager.TitleBlockSheet.Cells[currentRow, 3] = row.Tag;
                excelManager.TitleBlockSheet.Cells[currentRow, 4] = row.Prompt;
                excelManager.TitleBlockSheet.Cells[currentRow, 5] = row.Value;
                excelManager.TitleBlockSheet.Cells[currentRow, 6] = row.Path;
                excelManager.TitleBlockSheet.Cells[currentRow, 7] = row.FileName;
                currentRow++;
            }
        }

        /// <summary>
        /// Text Entity �����͸� Excel ��Ʈ�� ���
        /// </summary>
        public void WriteTextEntityData(List<TextEntityRowData> textEntityRows)
        {
            if (excelManager.TextEntitiesSheet == null || textEntityRows == null || textEntityRows.Count == 0)
                return;

            int currentRow = 2; // ��� ���� ����� ����

            foreach (var row in textEntityRows)
            {
                excelManager.TextEntitiesSheet.Cells[currentRow, 1] = row.Type;
                excelManager.TextEntitiesSheet.Cells[currentRow, 2] = row.Layer;
                excelManager.TextEntitiesSheet.Cells[currentRow, 3] = row.Text;
                excelManager.TextEntitiesSheet.Cells[currentRow, 4] = row.Path;
                excelManager.TextEntitiesSheet.Cells[currentRow, 5] = row.FileName;
                currentRow++;
            }
        }

        /// <summary>
        /// Note 엔터티 데이터를 Excel 시트에 쓰기 (테이블 및 셀 병합 포함)
        /// </summary>
        public void WriteNoteEntityData(List<NoteEntityInfo> noteEntityRows)
        {
            if (excelManager.NoteEntitiesSheet == null || noteEntityRows == null || noteEntityRows.Count == 0)
                return;

            int excelRow = 2; // 헤더 다음 행부터 시작

            foreach (var note in noteEntityRows)
            {
                // 기본 Note 정보 쓰기
                excelManager.NoteEntitiesSheet.Cells[excelRow, 1] = note.Type;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 2] = note.Layer;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 3] = note.Text;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 4] = note.X;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 5] = note.Y;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 6] = note.SortOrder;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 8] = note.Path;
                excelManager.NoteEntitiesSheet.Cells[excelRow, 9] = note.FileName;

                int tableRowCount = 0;
                if (note.Cells != null && note.Cells.Count > 0)
                {
                    // 테이블 데이터 처리
                    foreach (var cell in note.Cells)
                    {
                        int startRow = excelRow + cell.Row;
                        int startCol = 7 + cell.Column; // G열부터 시작
                        int endRow = startRow + cell.RowSpan - 1;
                        int endCol = startCol + cell.ColumnSpan - 1;

                        Excel.Range cellRange = excelManager.NoteEntitiesSheet.Range[
                            excelManager.NoteEntitiesSheet.Cells[startRow, startCol],
                            excelManager.NoteEntitiesSheet.Cells[endRow, endCol]];
                        
                        // 병합 먼저 수행
                        if (cell.RowSpan > 1 || cell.ColumnSpan > 1)
                        {
                            cellRange.Merge();
                        }

                        // 값 설정 및 서식 지정
                        cellRange.Value = cell.CellText;
                        cellRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;
                        cellRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
                    }
                    
                    // 이 테이블이 차지하는 총 행 수를 계산
                    tableRowCount = note.Cells.Max(c => c.Row + c.RowSpan);
                }

                // 다음 Note를 기록할 위치로 이동
                // 테이블이 있으면 테이블 높이만큼, 없으면 한 칸만 이동
                excelRow += (tableRowCount > 0) ? tableRowCount : 1;
            }
        }

        /// <summary>
        /// ���� �����͸� Excel ��Ʈ�� ���
        /// </summary>
        public void WriteMappingDataToExcel(Dictionary<string, Dictionary<string, (string, string, string, string)>> mappingData)
        {
            try
            {
                if (excelManager.MappingSheet == null || mappingData == null)
                    return;

                int currentRow = 2; // ��� ���� ����� ����
                
                Debug.WriteLine($"[DEBUG] Writing mapping data to Excel. Total files: {mappingData.Count}");

                foreach (var fileEntry in mappingData)
                {
                    string fileName = fileEntry.Key;
                    var fileMappingData = fileEntry.Value;
                    
                    Debug.WriteLine($"[DEBUG] Processing file: {fileName}, entries: {fileMappingData.Count}");

                    foreach (var mapEntry in fileMappingData)
                    {
                        string mapKey = mapEntry.Key;
                        (string aiLabel, string dwgTag, string attValue, string pdfValue) = mapEntry.Value;
                        
                        if (string.IsNullOrEmpty(fileName) || string.IsNullOrEmpty(mapKey))
                        {
                            continue;
                        }

                        try
                        {
                            // ��ġ ������Ʈ�� ���� �迭 ���
                            object[,] rowData = new object[1, 6];
                            rowData[0, 0] = fileName;
                            rowData[0, 1] = mapKey;
                            rowData[0, 2] = aiLabel ?? "";
                            rowData[0, 3] = dwgTag ?? "";
                            rowData[0, 4] = attValue ?? "";
                            rowData[0, 5] = pdfValue ?? "";
                            
                            Excel.Range range = excelManager.MappingSheet.Range[
                                excelManager.MappingSheet.Cells[currentRow, 1], 
                                excelManager.MappingSheet.Cells[currentRow, 6]];
                            range.Value = rowData;
                        }
                        catch (System.Exception ex)
                        {
                            Debug.WriteLine($"? Error writing row {currentRow}: {ex.Message}");
                        }

                        currentRow++;
                    }
                }
                
                Debug.WriteLine($"[DEBUG] Mapping data written to Excel. Total rows: {currentRow - 2}");
            }
            catch (System.Exception ex)
            {
                Debug.WriteLine($"? ���� ������ Excel ��� �� ����: {ex.Message}");
                throw;
            }
        }

        /// <summary>
        /// Excel ���� ��Ʈ���� FileName�� AILabel�� ��Ī�Ǵ� ���� ã�� Pdf_value�� ������Ʈ
        /// </summary>
        public bool UpdateExcelRow(string fileName, string aiLabel, string pdfValue)
        {
            try
            {
                if (excelManager.MappingSheet == null)
                    return false;

                Excel.Range usedRange = excelManager.MappingSheet.UsedRange;
                if (usedRange == null) return false;

                int lastRow = usedRange.Rows.Count;
                
                for (int row = 2; row <= lastRow; row++)
                {
                    var cellFileName = ((Excel.Range)excelManager.MappingSheet.Cells[row, 1]).Value?.ToString() ?? "";
                    var cellAiLabel = ((Excel.Range)excelManager.MappingSheet.Cells[row, 3]).Value?.ToString() ?? "";
                    
                    if (string.Equals(cellFileName.Trim(), fileName.Trim(), StringComparison.OrdinalIgnoreCase) &&
                        string.Equals(cellAiLabel.Trim(), aiLabel.Trim(), StringComparison.OrdinalIgnoreCase))
                    {
                        excelManager.MappingSheet.Cells[row, 6] = pdfValue;
                        return true;
                    }
                }
                
                return false;
            }
            catch (System.Exception ex)
            {
                Debug.WriteLine($"? Excel �� ������Ʈ �� ����: {ex.Message}");
                return false;
            }
        }

        /// <summary>
        /// DWG ���� ���� ��ũ���� �����ϰ� ���� (PDF �÷� ����)
        /// </summary>
        public void SaveDwgOnlyMappingWorkbook(Dictionary<string, Dictionary<string, (string, string, string, string)>> mappingData, string resultFolderPath)
        {
            try
            {
                string timestamp = DateTime.Now.ToString("yyyyMMdd_HHmmss");
                string savePath = System.IO.Path.Combine(resultFolderPath, $"{timestamp}_DwgOnly_Mapping.xlsx");
                
                Debug.WriteLine($"[DEBUG] DWG ���� ���� ��ũ�� ���� ����: {savePath}");

                var dwgOnlyWorkbook = excelManager.CreateNewWorkbook();
                var dwgOnlyWorksheet = (Excel.Worksheet)dwgOnlyWorkbook.Worksheets[1];
                dwgOnlyWorksheet.Name = "DWG Mapping Data";

                // ��� ���� (PDF Value �÷� ����)
                dwgOnlyWorksheet.Cells[1, 1] = "���ϸ�";
                dwgOnlyWorksheet.Cells[1, 2] = "Map Key";
                dwgOnlyWorksheet.Cells[1, 3] = "AI Label";
                dwgOnlyWorksheet.Cells[1, 4] = "DWG Tag";
                dwgOnlyWorksheet.Cells[1, 5] = "DWG Value";

                // ��� ��Ÿ�� ����
                var headerRange = dwgOnlyWorksheet.Range["A1:E1"];
                headerRange.Font.Bold = true;
                headerRange.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
                headerRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;

                // ������ �Է�
                int totalRows = mappingData.Sum(f => f.Value.Count);
                if (totalRows > 0)
                {
                    object[,] data = new object[totalRows, 5];
                    int row = 0;
                    
                    foreach (var fileEntry in mappingData)
                    {
                        string fileName = fileEntry.Key;
                        foreach (var mapEntry in fileEntry.Value)
                        {
                            string mapKey = mapEntry.Key;
                            var (aiLabel, dwgTag, dwgValue, pdfValue) = mapEntry.Value;

                            data[row, 0] = fileName;
                            data[row, 1] = mapKey;
                            data[row, 2] = aiLabel;
                            data[row, 3] = dwgTag;
                            data[row, 4] = dwgValue;

                            row++;
                        }
                    }
                    
                    Excel.Range dataRange = dwgOnlyWorksheet.Range[
                        dwgOnlyWorksheet.Cells[2, 1], 
                        dwgOnlyWorksheet.Cells[totalRows + 1, 5]];
                    dataRange.Value = data;
                }

                dwgOnlyWorksheet.Columns.AutoFit();
                excelManager.SaveWorkbookAs(dwgOnlyWorkbook, savePath);

                Debug.WriteLine($"? DWG ���� ���� ��ũ�� ���� �Ϸ�: {System.IO.Path.GetFileName(savePath)}");

                dwgOnlyWorkbook.Close(false);
                System.GC.Collect();
                System.GC.WaitForPendingFinalizers();
            }
            catch (System.Exception ex)
            {
                Debug.WriteLine($"? DWG ���� ���� ��ũ�� ���� �� ����: {ex.Message}");
                throw;
            }
        }

        /// <summary>
        /// Height ���ĵ� Excel ���� ����
        /// </summary>
        public void WriteHeightSortedData(List<TextEntityInfo> textEntities, Excel.Worksheet worksheet, string fileName)
        {
            // ��� ����
            worksheet.Cells[1, 1] = "Height";
            worksheet.Cells[1, 2] = "Type";
            worksheet.Cells[1, 3] = "Layer";
            worksheet.Cells[1, 4] = "Tag";
            worksheet.Cells[1, 5] = "FileName";
            worksheet.Cells[1, 6] = "Text";
            
            // ��� ��Ÿ�� ����
            var headerRange = worksheet.Range["A1:F1"];
            headerRange.Font.Bold = true;
            headerRange.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightBlue);
            
            // �����ʹ� ExtractTextEntitiesWithHeight���� �̹� ���ĵǾ����Ƿ� �ٽ� �������� �ʽ��ϴ�.
            
            // ������ �Է�
            int row = 2;
            foreach (var entity in textEntities) // sortedEntities�� textEntities�� ����
            {
                worksheet.Cells[row, 1] = entity.Height;
                worksheet.Cells[row, 2] = entity.Type;
                worksheet.Cells[row, 3] = entity.Layer;
                worksheet.Cells[row, 4] = entity.Tag;
                worksheet.Cells[row, 5] = fileName;
                worksheet.Cells[row, 6] = entity.Text;
                row++;
            }
            
            worksheet.Columns.AutoFit();
        }

        /// <summary>
        /// Note 엔티티들을 Excel 워크시트에 기록합니다 (기존 데이터 아래에 추가).
        /// CellBoundary 데이터를 사용하여 병합된 셀의 텍스트를 적절히 처리합니다.
        /// </summary>
        public void WriteNoteEntities(List<NoteEntityInfo> noteEntities, Excel.Worksheet worksheet, string fileName)
        {
            if (noteEntities == null || noteEntities.Count == 0)
            {
                Debug.WriteLine("[DEBUG] Note 엔티티가 없습니다.");
                return;
            }

            try
            {
                // 현재 워크시트의 마지막 사용된 행 찾기
                Excel.Range usedRange = null;
                int lastRow = 1;
                
                try
                {
                    usedRange = worksheet.UsedRange;
                    lastRow = usedRange?.Rows.Count ?? 1;
                }
                catch (System.Exception ex)
                {
                    Debug.WriteLine($"[DEBUG] UsedRange 접근 오류, 기본값 사용: {ex.Message}");
                    lastRow = 1;
                }
                
                int startRow = lastRow + 2; // 한 줄 띄우고 시작
                Debug.WriteLine($"[DEBUG] Note 데이터 기록 시작: {startRow}행부터 {noteEntities.Count}개 항목");

                // Note 섹션 헤더 추가 (표 컬럼 포함)
                try
                {
                    worksheet.Cells[startRow - 1, 1] = "=== Notes (with Cell Boundary Tables) ===";
                    worksheet.Cells[startRow - 1, 2] = "";
                    worksheet.Cells[startRow - 1, 3] = "";
                    worksheet.Cells[startRow - 1, 4] = "";
                    worksheet.Cells[startRow - 1, 5] = "";
                    worksheet.Cells[startRow - 1, 6] = "";
                    
                    // 표 컬럼 헤더 추가 (G열부터 최대 20개 컬럼)
                    for (int col = 7; col <= 26; col++) // G~Z열 (20개 컬럼)
                    {
                        worksheet.Cells[startRow - 1, col] = $"Table Col {col - 6}";
                        var tableHeaderCell = (Excel.Range)worksheet.Cells[startRow - 1, col];
                        tableHeaderCell.Font.Bold = true;
                        tableHeaderCell.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightBlue);
                        tableHeaderCell.Font.Size = 9; // 작은 폰트로 설정
                    }
                    
                    // 헤더 스타일 적용 (개별 셀로 처리)
                    var headerCell = (Excel.Range)worksheet.Cells[startRow - 1, 1];
                    headerCell.Font.Bold = true;
                    headerCell.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightYellow);
                }
                catch (System.Exception ex)
                {
                    Debug.WriteLine($"[DEBUG] Note 헤더 작성 오류: {ex.Message}");
                }

                // Note 데이터 입력 (CellBoundary 데이터 사용)
                int row = startRow;
                try
                {
                    foreach (var noteEntity in noteEntities)
                    {
                        // 기본 Note 정보 입력 (F열까지)
                        worksheet.Cells[row, 1] = 0; // Height는 0으로 설정
                        worksheet.Cells[row, 2] = noteEntity.Type ?? "";
                        worksheet.Cells[row, 3] = noteEntity.Layer ?? "";
                        worksheet.Cells[row, 4] = ""; // Tag는 빈 값
                        worksheet.Cells[row, 5] = fileName ?? "";
                        worksheet.Cells[row, 6] = noteEntity.Text ?? ""; // 일반 텍스트만 (표 데이터 제외)

                        int currentRow = row; // 현재 처리 중인 행 번호
                        
                        // CellBoundary 데이터가 있으면 G열부터 테이블 데이터 처리
                        if (noteEntity.CellBoundaries != null && noteEntity.CellBoundaries.Count > 0)
                        {
                            Debug.WriteLine($"[DEBUG] CellBoundary 데이터 처리: Row {row}, 셀 수={noteEntity.CellBoundaries.Count}");
                            
                            // CellBoundary의 각 셀을 해당 위치에 직접 배치
                            int maxTableRow = 0;
                            foreach (var cellBoundary in noteEntity.CellBoundaries)
                            {
                                var (sRow, sCol, eRow, eCol) = ParseCellRangeFromLabel(cellBoundary.Label);
                                Debug.WriteLine($"[DEBUG] CellBoundary 처리: {cellBoundary.Label} → Range=R{sRow}C{sCol}:R{eRow}C{eCol}, Text='{cellBoundary.CellText}'");
                                
                                if (sRow > 0 && sCol > 0 && eRow > 0 && eCol > 0)
                                {
                                    // 병합된 영역의 셀 개수 계산: (eRow - sRow) × (eCol - sCol)
                                    int rowCount = eRow - sRow; // 행 개수 (bottomRight - topLeft)
                                    int colCount = eCol - sCol; // 열 개수 (bottomRight - topLeft)
                                    
                                    Debug.WriteLine($"[DEBUG] 병합 영역 크기: {rowCount+1}행 × {colCount+1}열");
                                    
                                    // 병합된 영역의 모든 셀에 텍스트 복사 (topLeft부터 bottomRight-1까지)
                                    for (int r = sRow; r < eRow; r++) // < eRow (bottomRight 제외)
                                    {
                                        for (int c = sCol; c < eCol; c++) // < eCol (bottomRight 제외)
                                        {
                                            // Excel에서 테이블 위치 계산: 
                                            // R1 → Note의 현재 행 (currentRow)
                                            // R2 → Note의 다음 행 (currentRow + 1)
                                            // C1 → G열(7), C2 → H열(8)
                                            int excelRow = currentRow + (r - 1); // R1=currentRow, R2=currentRow+1, ...
                                            int excelCol = 7 + (c - 1); // C1=G열(7), C2=H열(8), ...
                                            
                                            // Excel 범위 체크 (최대 20개 컬럼까지)
                                            if (excelCol <= 26) // Z열까지
                                            {
                                                // CellText가 비어있어도 일단 배치해보기 (디버그용)
                                                var cellValue = string.IsNullOrEmpty(cellBoundary.CellText) ? "[빈셀]" : cellBoundary.CellText;
                                                // 텍스트 형식으로 설정하여 "0:0" 같은 값이 시간으로 포맷되지 않도록 함
                                                var cell = (Excel.Range)worksheet.Cells[excelRow, excelCol];
                                                cell.NumberFormat = "@"; // 텍스트 형식
                                                cell.Value = cellValue;
                                                Debug.WriteLine($"[DEBUG] ✅ 셀 복사: R{r}C{c} → Excel[{excelRow},{excelCol}] = '{cellValue}'");
                                            }
                                            else
                                            {
                                                Debug.WriteLine($"[DEBUG] ❌ Excel 컬럼 범위 초과: {excelCol} > 26");
                                            }
                                            
                                            // 테이블이 차지하는 최대 행 수 추적
                                            maxTableRow = Math.Max(maxTableRow, r);
                                        }
                                    }
                                }
                                else
                                {
                                    Debug.WriteLine($"[DEBUG] ❌ 잘못된 Range: {cellBoundary.Label} → R{sRow}C{sCol}:R{eRow}C{eCol}");
                                }
                            }
                            
                            // 테이블이 여러 행을 차지하는 경우 currentRow 업데이트
                            if (maxTableRow > 1)
                            {
                                currentRow += (maxTableRow - 1);
                                Debug.WriteLine($"[DEBUG] 테이블 행 수만큼 currentRow 업데이트: +{maxTableRow - 1} → {currentRow}");
                            }
                        }
                        else if (!string.IsNullOrEmpty(noteEntity.TableCsv))
                        {
                            // 기존 TableCsv 방식 (백업용)
                            var tableRows = noteEntity.TableCsv.Split(new[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
                            Debug.WriteLine($"[DEBUG] 기존 표 데이터 처리: Row {row}, 표 행 수={tableRows.Length}");
                            
                            for (int tableRowIndex = 0; tableRowIndex < tableRows.Length; tableRowIndex++)
                            {
                                var tableCells = tableRows[tableRowIndex].Split(',');
                                
                                // 각 셀을 G열부터 배치 (최대 15개 컬럼까지)
                                for (int cellIndex = 0; cellIndex < Math.Min(tableCells.Length, 15); cellIndex++)
                                {
                                    var cellValue = tableCells[cellIndex].Trim().Trim('"'); // 따옴표 제거
                                    // 텍스트 형식으로 설정하여 "0:0" 같은 값이 시간으로 포맷되지 않도록 함
                                    var cell = (Excel.Range)worksheet.Cells[currentRow, 7 + cellIndex];
                                    cell.NumberFormat = "@"; // 텍스트 형식
                                    cell.Value = cellValue; // G열(7)부터 시작
                                }
                                
                                // 표의 첫 번째 행이 아니면 새로운 Excel 행 추가
                                if (tableRowIndex > 0)
                                {
                                    currentRow++;
                                    // 새로운 행에는 기본 Note 정보 복사 (Type, Layer 등)
                                    worksheet.Cells[currentRow, 1] = 0;
                                    worksheet.Cells[currentRow, 2] = noteEntity.Type ?? "";
                                    worksheet.Cells[currentRow, 3] = noteEntity.Layer ?? "";
                                    worksheet.Cells[currentRow, 4] = "";
                                    worksheet.Cells[currentRow, 5] = fileName ?? "";
                                    worksheet.Cells[currentRow, 6] = "(continued)"; // 연속 표시
                                }
                                
                                Debug.WriteLine($"[DEBUG] 표 행 {tableRowIndex + 1}/{tableRows.Length}: Excel Row {currentRow}, 셀 수={tableCells.Length}");
                            }
                        }
                        
                        // "NOTE" 타입인 경우 행 배경색 변경 (표 영역 포함)
                        if (noteEntity.Type == "Note")
                        {
                            Excel.Range noteRowRange = worksheet.Range[worksheet.Cells[row, 1], worksheet.Cells[currentRow, 26]]; // Z열까지
                            noteRowRange.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightYellow);
                            noteRowRange.Font.Bold = true;
                        }

                        Debug.WriteLine($"[DEBUG] Excel 기록: Row {row}~{currentRow}, Order {noteEntity.SortOrder}, Type {noteEntity.Type}, Pos({noteEntity.X:F1},{noteEntity.Y:F1}), Text: '{noteEntity.Text}', HasCellBoundaries: {noteEntity.CellBoundaries?.Count > 0} (Count: {noteEntity.CellBoundaries?.Count ?? 0}), HasTableCsv: {!string.IsNullOrEmpty(noteEntity.TableCsv)}");
                        
                        // CellBoundaries 상세 디버그
                        if (noteEntity.CellBoundaries != null && noteEntity.CellBoundaries.Count > 0)
                        {
                            Debug.WriteLine($"[DEBUG] CellBoundaries 상세:");
                            foreach (var cb in noteEntity.CellBoundaries.Take(5)) // 처음 5개만 출력
                            {
                                Debug.WriteLine($"[DEBUG]   {cb.Label}: '{cb.CellText}'");
                            }
                        }
                        
                        // 다음 Note는 현재 행의 다음 행부터 시작
                        row = currentRow + 1;
                    }
                    
                    Debug.WriteLine($"[DEBUG] Note 데이터 기록 완료: {row - startRow}개 항목");
                }
                catch (System.Exception ex)
                {
                    Debug.WriteLine($"[DEBUG] Note 데이터 입력 오류: {ex.Message}");
                    Debug.WriteLine($"[DEBUG] 처리된 행: {row - startRow}개");
                }

                // AutoFit 시도 (오류 발생시 무시)
                try
                {
                    worksheet.Columns.AutoFit();
                }
                catch (System.Exception ex)
                {
                    Debug.WriteLine($"[DEBUG] AutoFit 오류 (무시됨): {ex.Message}");
                }
            }
            catch (System.Exception ex)
            {
                Debug.WriteLine($"❌ WriteNoteEntities 전체 오류: {ex.Message}");
                Debug.WriteLine($"   스택 트레이스: {ex.StackTrace}");
                throw; // 상위로 예외 전파
            }
        }


        /// <summary>
        /// 라벨에서 셀 범위 정보를 파싱합니다. 
        /// 예: "R1C2" → (1, 2, 1, 2) 또는 "R2C2→R3C4" → (2, 2, 3, 4)
        /// </summary>
        private (int sRow, int sCol, int eRow, int eCol) ParseCellRangeFromLabel(string label)
        {
            try
            {
                if (string.IsNullOrEmpty(label))
                    return (0, 0, 0, 0);

                if (label.Contains("→"))
                {
                    // "R2C2→R3C4" 형태 - 범위 파싱
                    var parts = label.Split('→');
                    if (parts.Length == 2)
                    {
                        var (sRow, sCol) = ParseSingleCell(parts[0]);
                        var (eRow, eCol) = ParseSingleCell(parts[1]);
                        return (sRow, sCol, eRow, eCol);
                    }
                }
                else
                {
                    // "R1C2" 형태 - 단일 셀
                    var (row, col) = ParseSingleCell(label);
                    return (row, col, row, col);
                }
                
                return (0, 0, 0, 0);
            }
            catch
            {
                return (0, 0, 0, 0);
            }
        }

        /// <summary>
        /// 단일 셀 위치를 파싱합니다. (예: "R2C3" → (2, 3))
        /// </summary>
        private (int row, int col) ParseSingleCell(string cellStr)
        {
            try
            {
                if (string.IsNullOrEmpty(cellStr))
                    return (0, 0);

                var rIndex = cellStr.IndexOf('R');
                var cIndex = cellStr.IndexOf('C');
                
                if (rIndex >= 0 && cIndex > rIndex)
                {
                    var rowStr = cellStr.Substring(rIndex + 1, cIndex - rIndex - 1);
                    var colStr = cellStr.Substring(cIndex + 1);
                    
                    if (int.TryParse(rowStr, out int row) && int.TryParse(colStr, out int col))
                    {
                        return (row, col);
                    }
                }
                
                return (0, 0);
            }
            catch
            {
                return (0, 0);
            }
        }
    }
}