chore: 首次簽入 Thinkyu ASP.NET 專案

- 加入 Visual Studio / ASP.NET .gitignore - 排除建置輸出、IDE 設定、NuGet packages、大型 MSI 安裝檔
2026-09-10 09:42:37 +08:00
commit 577060bc78
2496 changed files with 501389 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.Script.Services;
+using System.Web.Services;
+using System.Data;
+using System.Data.Common;
+using System.IO;
+using WebLib;
+using Newtonsoft.Json;
+using NPOI.SS.UserModel;
+using NPOI.XSSF.UserModel;
+
+namespace Education.Services
+{
+    [WebService(Namespace = "http://tempuri.org/")]
+    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
+    [System.ComponentModel.ToolboxItem(false)]
+    [ScriptService]
+    public class 火車票價維護 : ServiceBase
+    {
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse GetVersions()
+        {
+            try
+            {
+                DAC_火車票價 dac = new DAC_火車票價();
+                var versions = dac.查詢版本號List();
+                return ServiceResponse.CreateSuccess("取得版本清單成功", versions);
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"取得版本清單失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse GetFareTable(int versionId)
+        {
+            try
+            {
+                DAC_火車票價 dac = new DAC_火車票價();
+                var data = dac.查詢票價表(versionId);
+
+                if (data.Count == 0)
+                {
+                    return ServiceResponse.CreateSuccess("無資料", new
+                    {
+                        originStations = new List<string>(),
+                        destStations = new List<string>(),
+                        fares = new Dictionary<string, int>()
+                    });
+                }
+
+                // 取得所有起站和訖站
+                var originStations = data.OrderBy(x => x.起站站碼).Select(x => x.起站).Distinct().ToList();
+                var destStations = data.OrderBy(x => x.迄站站碼).Select(x => x.迄站).Distinct().ToList();
+
+                // 起訖站由北至南排序
+                
+
+
+
+                // 建立票價字典
+                var fares = new Dictionary<string, int>();
+                foreach (var item in data)
+                {
+                    var key = $"{item.起站}_{item.迄站}";
+                    fares[key] = item.票價;
+                }
+
+                return ServiceResponse.CreateSuccess("取得票價表成功", new
+                {
+                    originStations = originStations,
+                    destStations = destStations,
+                    fares = fares
+                });
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"取得票價表失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse SaveFareTable(int versionId, string fares)
+        {
+            try
+            {
+                Dictionary<string, int> faresDict = JsonConvert.DeserializeObject<Dictionary<string, int>>(fares);
+
+                using (var ts = DAC.NewTransactionScope())
+                {
+                    using (var conn = DAC.NewConnection())
+                    {
+                        DAC_火車票價 dac = new DAC_火車票價(conn);
+
+                        // 刪除原有的版本資料
+                        var existingData = dac.Select(noInputReturnAll: true, 版本號: versionId, 起站: null, 迄站: null);
+                        
+                        // 保存原有的生效日期（應該所有同版本的記錄生效日期都一樣）
+                        DateTime effectiveDate = existingData.Count > 0 ? existingData[0].生效日期 : DateTime.Today;
+
+                        foreach (var item in existingData)
+                        {
+                            dac.DeleteOne(item.編號, item.DB_APPNO);
+                        }
+
+                        // 新增更新後的資料，使用保存的生效日期
+                        foreach (var kvp in faresDict)
+                        {
+                            var parts = kvp.Key.Split('_');
+                            if (parts.Length != 2) continue;
+
+                            var origin = parts[0];
+                            var destination = parts[1];
+
+                            if (origin == destination) continue; // 跳過同站
+
+                            var newItem = new 火車票價Item
+                            {
+                                版本號 = versionId,
+                                生效日期 = effectiveDate,
+                                起站 = origin,
+                                迄站 = destination,
+                                票價 = kvp.Value
+                            };
+
+                            dac.InsertOne(newItem);
+                        }
+
+                        ts.Complete();
+                    }
+                }
+
+                return ServiceResponse.CreateSuccess("儲存成功");
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"儲存失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse CreateNewVersion(int versionId)
+        {
+            try
+            {
+                // 只保留年月日，不要時間
+                DateTime effectiveDate = PublicVariable.TaiwanNow.Date;
+
+                using (var ts = DAC.NewTransactionScope())
+                {
+                    using (var conn = DAC.NewConnection())
+                    {
+                        DAC_火車票價 dac = new DAC_火車票價(conn);
+
+                        // 檢查版本是否已存在
+                        var existingData = dac.Select(noInputReturnAll: true, 版本號: versionId, 起站: null, 迄站: null);
+                        if (existingData.Count > 0)
+                        {
+                            return ServiceResponse.CreateError($"版本 {versionId} 已存在");
+                        }
+
+                        // 建立預設車站清單（使用現有最新版本的車站）
+                        var latestVersion = dac.SelectAll().GroupBy(x => x.版本號).OrderByDescending(x => x.Key).FirstOrDefault();
+                        if (latestVersion != null)
+                        {
+                            // 複製最新版本的結構（但票價為零）
+                            var stations = latestVersion.Select(x => x.起站).Distinct().ToList();
+                            foreach (var origin in stations)
+                            {
+                                foreach (var dest in stations)
+                                {
+                                    if (origin != dest)
+                                    {
+                                        var newItem = new 火車票價Item
+                                        {
+                                            版本號 = versionId,
+                                            生效日期 = effectiveDate,
+                                            起站 = origin,
+                                            迄站 = dest,
+                                            票價 = 0
+                                        };
+                                        dac.InsertOne(newItem);
+                                    }
+                                }
+                            }
+                        }
+
+                        ts.Complete();
+                    }
+                }
+
+                return ServiceResponse.CreateSuccess("新版本建立成功");
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"建立新版本失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse DeleteVersion(int versionId)
+        {
+            try
+            {
+                using (var ts = DAC.NewTransactionScope())
+                {
+                    using (var conn = DAC.NewConnection())
+                    {
+                        DAC_火車票價 dac = new DAC_火車票價(conn);
+
+                        // 刪除該版本的所有資料
+                        var existingData = dac.Select(noInputReturnAll: true, 版本號: versionId, 起站: null, 迄站: null);
+                        foreach (var item in existingData)
+                        {
+                            dac.DeleteOne(item.編號, item.DB_APPNO);
+                        }
+
+                        ts.Complete();
+                    }
+                }
+
+                return ServiceResponse.CreateSuccess("版本刪除成功");
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"版本刪除失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse ExportFareData(int versionId)
+        {
+            try
+            {
+                DAC_火車票價 dac = new DAC_火車票價();
+                var data = dac.Select(noInputReturnAll: true, 版本號: versionId, 起站: null, 迄站: null);
+
+                List<string> originStations;
+                List<string> destStations;
+                var fares = new Dictionary<string, int>();
+
+                if (data.Count == 0)
+                {
+                    // 指定版本沒有資料，嘗試從其他版本取得車站清單
+                    var allData = dac.SelectAll();
+                    if (allData.Count == 0)
+                    {
+                        // 完全沒有任何資料，使用預設車站清單
+                        originStations = GetDefaultOriginStations();
+                        destStations = GetDefaultDestStations();
+                    }
+                    else
+                    {
+                        // 使用現有版本的車站清單（會包含所有現有版本出現過的車站）
+                        originStations = allData.Select(x => x.起站).Distinct().ToList();
+                        destStations = allData.Select(x => x.迄站).Distinct().ToList();
+                    }
+                }
+                else
+                {
+                    // 取得該版本的起站和訖站
+                    originStations = data.Select(x => x.起站).Distinct().ToList();
+                    destStations = data.Select(x => x.迄站).Distinct().ToList();
+
+                    // 建立票價字典
+                    foreach (var item in data)
+                    {
+                        var key = $"{item.起站}_{item.迄站}";
+                        fares[key] = item.票價;
+                    }
+                }
+
+                // 建立 Excel 檔案
+                var excelData = CreateFareExcel(originStations, destStations, fares, versionId);
+
+                var response = new 
+                {
+                    Data = new
+                    {
+                        originStations = originStations,
+                        destStations = destStations,
+                        fares = fares
+                    },
+                    ExcelData = excelData,
+                    Success = true,
+                    Message = "匯出成功"
+                };
+
+                return ServiceResponse.CreateSuccess("匯出成功", response);
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"匯出失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse GetExcelTemplate()
+        {
+            try
+            {
+                // 建立預設車站清單
+                var originStations = GetDefaultOriginStations();
+                var destStations = GetDefaultDestStations();
+
+                // 建立空的 Excel 範本
+                var excelData = CreateFareExcel(originStations, destStations, new Dictionary<string, int>(), 0, isTemplate: true);
+
+                return ServiceResponse.CreateSuccess("取得範本成功", excelData);
+            }
+            catch (Exception ex)
+            {
+                return ServiceResponse.CreateError($"取得範本失敗：{ex.Message}");
+            }
+        }
+
+        private List<string> GetDefaultOriginStations()
+        {
+            return new List<string>
+            {
+                "台北", "桃園", "中壢", "埔心", "楊梅", "竹北", "新竹", "竹南", "苗栗", 
+                "花蓮", "豐原", "清水", "台中"
+            };
+        }
+
+        private List<string> GetDefaultDestStations()
+        {
+            return new List<string>
+            {
+                "基隆", "八堵", "七堵", "汐止", "南港", "松山", "台北", "板橋", "樹林", 
+                "鶯歌", "桃園", "中壢", "楊梅", "竹北", "新竹", "竹東", "竹南", "苗栗", 
+                "豐原", "大甲", "清水", "台中", "沙鹿", "彰化", "員林", "田中", "二水", 
+                "斗六", "斗南", "嘉義", "新營", "善化", "台南", "岡山", "高雄", "屏東"
+            };
+        }
+
+        private string CreateFareExcel(List<string> originStations, List<string> destStations, 
+            Dictionary<string, int> fares, int versionId, bool isTemplate = false)
+        {
+            XSSFWorkbook workbook = new XSSFWorkbook();
+            try
+            {
+                var sheet = workbook.CreateSheet("火車票價");
+                
+                // 設定列寬
+                sheet.SetColumnWidth(0, 3500);
+                for (int i = 1; i <= originStations.Count; i++)
+                {
+                    sheet.SetColumnWidth(i, 2500);
+                }
+
+                // 設定標題列（橫軸為起站）
+                var headerRow = sheet.CreateRow(0);
+                headerRow.CreateCell(0).SetCellValue("訖站\\起站");
+                for (int i = 0; i < originStations.Count; i++)
+                {
+                    headerRow.CreateCell(i + 1).SetCellValue(originStations[i]);
+                }
+
+                // 設定資料列（縱軸為訖站）
+                for (int i = 0; i < destStations.Count; i++)
+                {
+                    var row = sheet.CreateRow(i + 1);
+                    row.CreateCell(0).SetCellValue(destStations[i]);
+
+                    for (int j = 0; j < originStations.Count; j++)
+                    {
+                        var cell = row.CreateCell(j + 1);
+                        
+                        if (originStations[j] == destStations[i])
+                        {
+                            // 同站，不填票價
+                            cell.SetCellValue("");
+                        }
+                        else
+                        {
+                            var key = $"{originStations[j]}_{destStations[i]}";
+                            if (fares.ContainsKey(key))
+                            {
+                                cell.SetCellValue(fares[key]);
+                            }
+                            else if (!isTemplate)
+                            {
+                                cell.SetCellValue("");
+                            }
+                        }
+                    }
+                }
+
+                // 轉換為 Base64
+                using (var ms = new MemoryStream())
+                {
+                    workbook.Write(ms);
+                    return Convert.ToBase64String(ms.ToArray());
+                }
+            }
+            finally
+            {
+                workbook.Close();
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse ImportFareData(string filePath)
+        {
+            try
+            {
+                // 驗證檔案路徑
+                if (string.IsNullOrEmpty(filePath) || !File.Exists(filePath))
+                {
+                    return ServiceResponse.CreateError("檔案不存在或已過期");
+                }
+
+                // 在迴圈外取得當前日期，只保留年月日
+                DateTime effectiveDate = PublicVariable.TaiwanNow.Date;
+
+                // 從檔案讀取並驗證資料
+                var fares = new Dictionary<string, int>();
+                var originStations = new List<string>();
+                var destStations = new List<string>();
+
+                using (var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+                {
+                    IWorkbook workbook = null;
+
+                    try
+                    {
+                        fileStream.Position = 0;
+                        workbook = new XSSFWorkbook(fileStream);
+                    }
+                    catch
+                    {
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("檔案格式錯誤");
+                    }
+
+                    if (workbook == null || workbook.NumberOfSheets == 0)
+                    {
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 檔案格式錯誤");
+                    }
+
+                    var sheet = workbook.GetSheetAt(0);
+                    if (sheet == null || sheet.PhysicalNumberOfRows == 0)
+                    {
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 工作表為空");
+                    }
+
+                    // 讀取標題列
+                    var headerRow = sheet.GetRow(0);
+                    if (headerRow == null)
+                    {
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 缺少標題列");
+                    }
+
+                    // 取得起站列表（橫軸為起站，從第二欄開始）
+                    for (int i = 1; i < headerRow.PhysicalNumberOfCells; i++)
+                    {
+                        var cell = headerRow.GetCell(i);
+                        if (cell != null && !string.IsNullOrEmpty(cell.StringCellValue))
+                        {
+                            originStations.Add(cell.StringCellValue);
+                        }
+                    }
+
+                    // 讀取資料列（縱軸為訖站，第一欄為訖站）
+                    for (int rowIdx = 1; rowIdx <= sheet.LastRowNum; rowIdx++)
+                    {
+                        var row = sheet.GetRow(rowIdx);
+                        if (row == null) continue;
+
+                        // 第一欄是訖站
+                        var destCell = row.GetCell(0);
+                        if (destCell == null || string.IsNullOrEmpty(destCell.StringCellValue))
+                            continue;
+
+                        string dest = destCell.StringCellValue;
+                        destStations.Add(dest);
+
+                        // 從第二欄開始是票價，對應起站（橫軸）
+                        for (int colIdx = 1; colIdx <= originStations.Count; colIdx++)
+                        {
+                            var fareCell = row.GetCell(colIdx);
+                            string origin = originStations[colIdx - 1];
+
+                            if (origin == dest)
+                                continue; // 跳過同站
+
+                            if (fareCell != null && fareCell.CellType != CellType.Blank)
+                            {
+                                try
+                                {
+                                    int fare = (int)fareCell.NumericCellValue;
+                                    if (fare >= 0)
+                                    {
+                                        var key = $"{origin}_{dest}";
+                                        fares[key] = fare;
+                                    }
+                                }
+                                catch
+                                {
+                                    // 忽略格式錯誤的單元格
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // 執行匯入 - 只有新增模式，自動產生新版本號
+                using (var ts = DAC.NewTransactionScope())
+                {
+                    using (var conn = DAC.NewConnection())
+                    {
+                        DAC_火車票價 dac = new DAC_火車票價(conn);
+
+                        // 取得下一個版本號
+                        int targetVersionId = 1;
+                        var allVersions = dac.SelectAll();
+                        if (allVersions.Count > 0)
+                        {
+                            targetVersionId = allVersions.Max(x => x.版本號) + 1;
+                        }
+
+                        // 新增資料（使用迴圈外取得的 effectiveDate，只保留年月日）
+                        foreach (var kvp in fares)
+                        {
+                            var parts = kvp.Key.Split('_');
+                            if (parts.Length != 2) continue;
+
+                            var origin = parts[0];
+                            var destination = parts[1];
+
+                            if (origin == destination) continue; // 跳過同站
+
+                            var newItem = new 火車票價Item
+                            {
+                                版本號 = targetVersionId,
+                                生效日期 = effectiveDate,  // 使用迴圈外的年月日
+                                起站 = origin,
+                                迄站 = destination,
+                                票價 = kvp.Value
+                            };
+
+                            dac.InsertOne(newItem);
+                        }
+
+                        ts.Complete();
+                    }
+                }
+
+                // 匯入成功後刪除上傳的臨時檔案
+                DeleteUploadedFile(filePath);
+
+                return ServiceResponse.CreateSuccess("匯入成功");
+            }
+            catch (Exception ex)
+            {
+                // 匯入失敗也刪除上傳的檔案
+                if (!string.IsNullOrEmpty(filePath))
+                {
+                    DeleteUploadedFile(filePath);
+                }
+                return ServiceResponse.CreateError($"匯入失敗：{ex.Message}");
+            }
+        }
+
+        [WebMethod(EnableSession = true)]
+        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
+        public ServiceResponse ValidateImportFile(string filePath)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(filePath) || !File.Exists(filePath))
+                {
+                    return ServiceResponse.CreateError("檔案不存在");
+                }
+
+                var fares = new Dictionary<string, int>();
+                var originStations = new List<string>();
+                var destStations = new List<string>();
+                var errors = new List<string>();
+                int rowCount = 0;
+
+                using (var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+                {
+                    IWorkbook workbook = null;
+                    
+                    // 嘗試讀取為 XLSX
+                    try
+                    {
+                        fileStream.Position = 0;
+                        workbook = new XSSFWorkbook(fileStream);
+                    }
+                    catch
+                    {
+                        // 檔案格式錯誤，刪除上傳的檔案
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("只支援 .xlsx 格式的 Excel 檔案");
+                    }
+
+                    if (workbook == null || workbook.NumberOfSheets == 0)
+                    {
+                        // 檔案格式錯誤，刪除上傳的檔案
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 檔案格式錯誤");
+                    }
+
+                    var sheet = workbook.GetSheetAt(0);
+                    if (sheet == null || sheet.PhysicalNumberOfRows == 0)
+                    {
+                        // 工作表為空，刪除上傳的檔案
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 工作表為空");
+                    }
+
+                    // 讀取標題列
+                    var headerRow = sheet.GetRow(0);
+                    if (headerRow == null)
+                    {
+                        // 標題列缺失，刪除上傳的檔案
+                        DeleteUploadedFile(filePath);
+                        return ServiceResponse.CreateError("Excel 缺少標題列");
+                    }
+
+                    // 取得起站列表（橫軸為起站，從第二欄開始）
+                    for (int i = 1; i < headerRow.PhysicalNumberOfCells; i++)
+                    {
+                        var cell = headerRow.GetCell(i);
+                        if (cell != null && !string.IsNullOrEmpty(cell.StringCellValue))
+                        {
+                            originStations.Add(cell.StringCellValue);
+                        }
+                    }
+
+                    // 讀取資料列（縱軸為訖站，第一欄為訖站）
+                    for (int rowIdx = 1; rowIdx <= sheet.LastRowNum; rowIdx++)
+                    {
+                        var row = sheet.GetRow(rowIdx);
+                        if (row == null) continue;
+
+                        // 第一欄是訖站
+                        var destCell = row.GetCell(0);
+                        if (destCell == null || string.IsNullOrEmpty(destCell.StringCellValue))
+                            continue;
+
+                        string dest = destCell.StringCellValue;
+                        destStations.Add(dest);
+
+                        // 從第二欄開始是票價，對應起站（橫軸）
+                        for (int colIdx = 1; colIdx <= originStations.Count; colIdx++)
+                        {
+                            var fareCell = row.GetCell(colIdx);
+                            string origin = originStations[colIdx - 1];
+
+                            if (origin == dest)
+                                continue; // 跳過同站
+
+                            if (fareCell != null && fareCell.CellType != CellType.Blank)
+                            {
+                                try
+                                {
+                                    int fare = (int)fareCell.NumericCellValue;
+                                    if (fare < 0)
+                                    {
+                                        errors.Add($"第 {rowIdx + 1} 列，{origin} 到 {dest} 的票價不能為負數");
+                                    }
+                                    else
+                                    {
+                                        var key = $"{origin}_{dest}";
+                                        fares[key] = fare;
+                                    }
+                                }
+                                catch
+                                {
+                                    errors.Add($"第 {rowIdx + 1} 列，{origin} 到 {dest} 的票價格式不正確");
+                                }
+                            }
+                        }
+
+                        rowCount++;
+                    }
+                }
+
+                if (errors.Count > 0)
+                {
+                    // 驗證失敗，刪除上傳的檔案
+                    DeleteUploadedFile(filePath);
+                    return ServiceResponse.CreateSuccess("檔案驗證失敗", new
+                    {
+                        Errors = errors,
+                        RowCount = 0
+                    });
+                }
+
+                return ServiceResponse.CreateSuccess("檔案驗證成功", new
+                {
+                    Fares = fares,
+                    OriginStations = originStations.Distinct().ToList(),
+                    DestStations = destStations.Distinct().ToList(),
+                    Errors = new List<string>()
+                });
+            }
+            catch (Exception ex)
+            {
+                // 驗證異常，刪除上傳的檔案
+                if (!string.IsNullOrEmpty(filePath))
+                {
+                    DeleteUploadedFile(filePath);
+                }
+                return ServiceResponse.CreateError($"驗證檔案失敗：{ex.Message}");
+            }
+        }
+
+        private void DeleteUploadedFile(string filePath)
+        {
+            if (string.IsNullOrEmpty(filePath))
+            {
+                return;
+            }
+
+            try
+            {
+                // 刪除指定的檔案
+                if (File.Exists(filePath))
+                {
+                    File.Delete(filePath);
+                }
+
+                // 清理所有 TrainFareImport_*.xlsx 格式的檔案
+                string uploadDir = Path.Combine(HttpContext.Current.Server.MapPath("~/"), "DocUpload");
+                if (Directory.Exists(uploadDir))
+                {
+                    try
+                    {
+                        var searchPattern = "TrainFareImport_*.xlsx";
+                        var oldFiles = Directory.GetFiles(uploadDir, searchPattern);
+                        
+                        foreach (var oldFile in oldFiles)
+                        {
+                            try
+                            {
+                                // 刪除30分鐘以前的檔案
+                                var fileInfo = new FileInfo(oldFile);
+                                if (DateTime.Now - fileInfo.LastWriteTime > TimeSpan.FromMinutes(30))
+                                {
+                                    File.Delete(oldFile);
+                                }
+                            }
+                            catch (Exception ex)
+                            {
+                                System.Diagnostics.Debug.WriteLine($"清理舊檔案失敗：{oldFile} - {ex.Message}");
+                            }
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        System.Diagnostics.Debug.WriteLine($"掃描清理檔案失敗：{ex.Message}");
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                // 記錄刪除失敗但不拋出例外
+                System.Diagnostics.Debug.WriteLine($"刪除上傳檔案失敗：{filePath} - {ex.Message}");
+            }
+        }
+    }
+}