441 lines
16 KiB
C#
441 lines
16 KiB
C#
using OfficeOpenXml;
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using OfficeOpenXml.Drawing;
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using OfficeOpenXml.Style;
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using WorkCameraExport.Models;
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using WorkCameraExport.Services.Interfaces;
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namespace WorkCameraExport.Services
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{
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/// <summary>
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/// Excel 服务 - 负责生成 Excel 文件
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/// </summary>
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public class ExcelService
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{
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private readonly ILogService? _logService;
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// Excel 图片配置
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private const int ImageWidth = 100;
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private const int ImageHeight = 60;
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private const int ImageSpacing = 5;
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static ExcelService()
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{
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// 设置 EPPlus 许可证（非商业用途）
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ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
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}
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public ExcelService(ILogService? logService = null)
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{
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_logService = logService;
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}
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/// <summary>
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/// 导出工作记录到 Excel
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/// </summary>
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public async Task ExportWorkRecordsToExcelAsync(
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List<WorkRecordExportItem> records,
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string outputPath,
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CancellationToken cancellationToken = default)
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{
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try
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{
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_logService?.Info($"[Excel] 开始生成 Excel，共 {records.Count} 条记录");
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// 确保输出目录存在
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var outputDir = Path.GetDirectoryName(outputPath);
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if (!string.IsNullOrEmpty(outputDir) && !Directory.Exists(outputDir))
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{
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Directory.CreateDirectory(outputDir);
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_logService?.Info($"[Excel] 创建输出目录: {outputDir}");
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}
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using var package = new ExcelPackage();
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var worksheet = package.Workbook.Worksheets.Add("工作记录");
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// 设置表头
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SetWorkRecordHeaders(worksheet);
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// 填充数据
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var row = 2;
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foreach (var record in records)
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{
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cancellationToken.ThrowIfCancellationRequested();
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await FillWorkRecordRowAsync(worksheet, row, record, cancellationToken);
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row++;
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}
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// 自动调整列宽（除了图片列）
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AutoFitColumns(worksheet, excludeColumn: 3);
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// 保存文件
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var fileInfo = new FileInfo(outputPath);
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_logService?.Info($"[Excel] 准备保存文件: {fileInfo.FullName}");
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await package.SaveAsAsync(fileInfo, cancellationToken);
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// 验证文件
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if (fileInfo.Exists)
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{
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fileInfo.Refresh();
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_logService?.Info($"[Excel] 文件保存成功: {fileInfo.FullName}, 大小: {fileInfo.Length} 字节");
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}
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else
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{
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_logService?.Error($"[Excel] 文件保存后不存在: {fileInfo.FullName}");
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}
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_logService?.Info($"[Excel] Excel 导出成功: {outputPath}, 共 {records.Count} 条记录");
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}
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catch (OperationCanceledException)
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{
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_logService?.Info("[Excel] Excel 导出已取消");
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throw;
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}
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catch (Exception ex)
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{
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_logService?.Error($"[Excel] Excel 导出失败: {ex.Message}", ex);
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throw;
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}
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}
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/// <summary>
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/// 导出月报表到 Excel
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/// </summary>
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public async Task ExportMonthlyReportToExcelAsync(
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List<MonthlyReportDto> data,
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string outputPath,
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CancellationToken cancellationToken = default)
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{
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try
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{
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using var package = new ExcelPackage();
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var worksheet = package.Workbook.Worksheets.Add("月报表");
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// 设置表头
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worksheet.Cells[1, 1].Value = "序号";
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worksheet.Cells[1, 2].Value = "时间";
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worksheet.Cells[1, 3].Value = "部门名称";
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worksheet.Cells[1, 4].Value = "人员名称";
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worksheet.Cells[1, 5].Value = "工作天数";
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// 设置表头样式
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using (var range = worksheet.Cells[1, 1, 1, 5])
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{
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range.Style.Font.Bold = true;
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range.Style.Fill.PatternType = ExcelFillStyle.Solid;
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range.Style.Fill.BackgroundColor.SetColor(System.Drawing.Color.LightGray);
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range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
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}
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// 填充数据
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for (int i = 0; i < data.Count; i++)
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{
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cancellationToken.ThrowIfCancellationRequested();
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var row = i + 2;
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var item = data[i];
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worksheet.Cells[row, 1].Value = i + 1;
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worksheet.Cells[row, 2].Value = item.YearMonth;
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worksheet.Cells[row, 3].Value = item.DeptName;
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worksheet.Cells[row, 4].Value = item.WorkerName;
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worksheet.Cells[row, 5].Value = item.WorkDays;
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}
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// 自动调整列宽
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worksheet.Cells.AutoFitColumns();
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// 保存文件
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var fileInfo = new FileInfo(outputPath);
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await package.SaveAsAsync(fileInfo, cancellationToken);
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_logService?.Info($"月报表导出成功: {outputPath}, 共 {data.Count} 条记录");
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}
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catch (OperationCanceledException)
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{
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_logService?.Info("月报表导出已取消");
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throw;
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}
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catch (Exception ex)
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{
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_logService?.Error($"月报表导出失败: {ex.Message}", ex);
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throw;
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}
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}
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/// <summary>
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/// 设置工作记录表头
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/// </summary>
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private void SetWorkRecordHeaders(ExcelWorksheet worksheet)
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{
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var headers = new[]
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{
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"序号", "部门名称", "图片", "地址信息", "工作内容",
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"施工人员", "状态", "拍照时间", "创建时间", "更新时间"
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};
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for (int i = 0; i < headers.Length; i++)
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{
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worksheet.Cells[1, i + 1].Value = headers[i];
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}
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// 设置表头样式
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using (var range = worksheet.Cells[1, 1, 1, headers.Length])
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{
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range.Style.Font.Bold = true;
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range.Style.Fill.PatternType = ExcelFillStyle.Solid;
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range.Style.Fill.BackgroundColor.SetColor(System.Drawing.Color.LightGray);
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range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
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}
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// 设置图片列宽度（根据最大图片数计算）
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worksheet.Column(3).Width = 50; // 默认宽度，会根据实际图片数调整
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}
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/// <summary>
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/// 填充工作记录行数据
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/// </summary>
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private async Task FillWorkRecordRowAsync(
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ExcelWorksheet worksheet,
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int row,
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WorkRecordExportItem record,
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CancellationToken cancellationToken)
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{
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worksheet.Cells[row, 1].Value = row - 1; // 序号
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worksheet.Cells[row, 2].Value = record.DeptName;
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// 第3列是图片，稍后处理
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worksheet.Cells[row, 4].Value = record.Address;
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worksheet.Cells[row, 5].Value = record.Content;
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worksheet.Cells[row, 6].Value = string.Join("、", record.Workers);
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worksheet.Cells[row, 7].Value = record.StatusName;
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worksheet.Cells[row, 8].Value = record.RecordTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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worksheet.Cells[row, 9].Value = record.CreateTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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worksheet.Cells[row, 10].Value = record.UpdateTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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// 设置行高以容纳图片
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worksheet.Row(row).Height = ImageHeight + 10;
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// 嵌入图片
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if (record.ImagePaths != null && record.ImagePaths.Count > 0)
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{
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await EmbedImagesAsync(worksheet, row, 3, record.ImagePaths, cancellationToken);
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}
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}
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/// <summary>
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/// 嵌入图片到单元格（水平排列）
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/// </summary>
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private async Task EmbedImagesAsync(
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ExcelWorksheet worksheet,
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int row,
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int column,
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List<string> imagePaths,
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CancellationToken cancellationToken)
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{
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var validPaths = imagePaths.Where(p => !string.IsNullOrEmpty(p) && File.Exists(p)).ToList();
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if (validPaths.Count == 0) return;
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// 计算所需的列宽
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var totalWidth = validPaths.Count * ImageWidth + (validPaths.Count - 1) * ImageSpacing + 10;
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var currentWidth = worksheet.Column(column).Width * 7; // 大约转换为像素
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if (totalWidth > currentWidth)
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{
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worksheet.Column(column).Width = totalWidth / 7.0 + 5;
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}
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var xOffset = 5; // 起始偏移
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for (int i = 0; i < validPaths.Count; i++)
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{
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cancellationToken.ThrowIfCancellationRequested();
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try
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{
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var imagePath = validPaths[i];
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var imageData = await File.ReadAllBytesAsync(imagePath, cancellationToken);
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using var stream = new MemoryStream(imageData);
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var picture = worksheet.Drawings.AddPicture(
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$"img_{row}_{column}_{i}",
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stream);
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// 设置图片位置和大小
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picture.SetPosition(row - 1, 5, column - 1, xOffset);
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picture.SetSize(ImageWidth, ImageHeight);
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xOffset += ImageWidth + ImageSpacing;
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}
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catch (Exception ex)
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{
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_logService?.Warn($"嵌入图片失败: {validPaths[i]}, {ex.Message}");
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}
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}
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}
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/// <summary>
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/// 自动调整列宽
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/// </summary>
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private void AutoFitColumns(ExcelWorksheet worksheet, int excludeColumn = -1)
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{
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for (int col = 1; col <= worksheet.Dimension?.End.Column; col++)
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{
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if (col != excludeColumn)
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{
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worksheet.Column(col).AutoFit();
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}
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}
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}
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/// <summary>
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/// 生成 Excel 文件（兼容旧版 MainForm 调用）
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/// </summary>
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/// <param name="outputPath">输出文件路径</param>
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/// <param name="records">工作记录列表</param>
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/// <param name="downloadedImages">已下载的图片字典（URL -> 图片数据）</param>
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/// <param name="progressCallback">进度回调（当前行, 总行数）</param>
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public void GenerateExcel(
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string outputPath,
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List<WorkRecordExportDto> records,
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Dictionary<string, byte[]> downloadedImages,
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Action<int, int>? progressCallback = null)
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{
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try
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{
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using var package = new ExcelPackage();
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var worksheet = package.Workbook.Worksheets.Add("工作记录");
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// 设置表头
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SetWorkRecordHeaders(worksheet);
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// 填充数据
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for (int i = 0; i < records.Count; i++)
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{
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var row = i + 2;
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var record = records[i];
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worksheet.Cells[row, 1].Value = i + 1; // 序号
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worksheet.Cells[row, 2].Value = record.DeptName;
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// 第3列是图片
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worksheet.Cells[row, 4].Value = record.Address;
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worksheet.Cells[row, 5].Value = record.Content;
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worksheet.Cells[row, 6].Value = string.Join("、", record.WorkerNames);
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worksheet.Cells[row, 7].Value = record.StatusName;
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worksheet.Cells[row, 8].Value = record.RecordTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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worksheet.Cells[row, 9].Value = record.CreateTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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worksheet.Cells[row, 10].Value = record.UpdateTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "";
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// 设置行高以容纳图片
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worksheet.Row(row).Height = ImageHeight + 10;
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// 嵌入图片
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if (record.Images != null && record.Images.Count > 0)
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{
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EmbedImagesFromBytes(worksheet, row, 3, record.Images, downloadedImages);
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}
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progressCallback?.Invoke(i + 1, records.Count);
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}
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// 自动调整列宽（除了图片列）
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AutoFitColumns(worksheet, excludeColumn: 3);
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// 保存文件
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var fileInfo = new FileInfo(outputPath);
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package.SaveAs(fileInfo);
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_logService?.Info($"Excel 导出成功: {outputPath}, 共 {records.Count} 条记录");
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}
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catch (Exception ex)
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{
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_logService?.Error($"Excel 导出失败: {ex.Message}", ex);
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throw;
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}
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}
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/// <summary>
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/// 从字节数组嵌入图片到单元格（水平排列）
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/// </summary>
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private void EmbedImagesFromBytes(
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ExcelWorksheet worksheet,
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int row,
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int column,
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List<string> imageUrls,
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Dictionary<string, byte[]> downloadedImages)
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{
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var validImages = imageUrls
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.Where(url => !string.IsNullOrEmpty(url) && downloadedImages.ContainsKey(url))
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.Select(url => downloadedImages[url])
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.Where(data => data != null && data.Length > 0)
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.ToList();
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if (validImages.Count == 0) return;
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// 计算所需的列宽
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var totalWidth = validImages.Count * ImageWidth + (validImages.Count - 1) * ImageSpacing + 10;
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var currentWidth = worksheet.Column(column).Width * 7;
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if (totalWidth > currentWidth)
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{
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worksheet.Column(column).Width = totalWidth / 7.0 + 5;
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}
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var xOffset = 5;
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for (int i = 0; i < validImages.Count; i++)
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{
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try
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{
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using var stream = new MemoryStream(validImages[i]);
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var picture = worksheet.Drawings.AddPicture(
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$"img_{row}_{column}_{i}",
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stream);
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picture.SetPosition(row - 1, 5, column - 1, xOffset);
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picture.SetSize(ImageWidth, ImageHeight);
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xOffset += ImageWidth + ImageSpacing;
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}
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catch (Exception ex)
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{
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_logService?.Warn($"嵌入图片失败: {ex.Message}");
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}
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}
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}
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}
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/// <summary>
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/// 工作记录导出项 - 包含本地图片路径
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/// </summary>
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public class WorkRecordExportItem
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{
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public int Id { get; set; }
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public string DeptName { get; set; } = "";
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public DateTime? RecordTime { get; set; }
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public string Address { get; set; } = "";
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public string Content { get; set; } = "";
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public string StatusName { get; set; } = "";
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public List<string> Workers { get; set; } = new(); // 工作人员名称列表
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public List<string> ImagePaths { get; set; } = new(); // 本地图片路径
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public DateTime? CreateTime { get; set; }
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public DateTime? UpdateTime { get; set; }
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/// <summary>
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/// 从 WorkRecordExportDto 创建
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/// </summary>
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public static WorkRecordExportItem FromDto(WorkRecordExportDto dto)
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{
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return new WorkRecordExportItem
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{
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Id = dto.Id,
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DeptName = dto.DeptName,
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RecordTime = dto.RecordTime,
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Address = dto.Address,
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Content = dto.Content,
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StatusName = dto.StatusName,
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Workers = dto.WorkerNames, // 使用 WorkerNames 获取字符串列表
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CreateTime = dto.CreateTime,
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UpdateTime = dto.UpdateTime
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};
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}
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}
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}
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