添加下载进度

Services/MinioDownloadTask.cs

@@ -1,5 +1,6 @@
 using System.Configuration;
 using System.Windows;
+using System.Windows.Forms.VisualStyles;
 using System.Windows.Input;
 using HeBianGu.Base.WpfBase;
 using Hopetry.Models;
@@ -67,10 +68,25 @@ public class MinioDownloadTask : INotifyPropertyChanged
     [SugarColumn(ColumnName = "file_etag")]
     public string FileETag { get; set; }
     
+    private string _progress;
+    
     [SugarColumn(IsIgnore = true)]
     public string Progress
     {
-        get { return TotalSize == 0 ? "0%" : $"{(Downloaded * 100 / TotalSize):0.0}%"; }
+        get
+        {
+            if (string.IsNullOrEmpty(_progress))
+            {
+                _progress = TotalSize == 0 ? "0%" : $"{(Downloaded * 100 / TotalSize):0.0}%";
+            }
+
+            return _progress;
+        }
+        set
+        {
+            _progress = value;
+            OnPropertyChanged(nameof(Progress));
+        }
     }
 
     [SugarColumn(IsIgnore = true)] public ICommand PauseCommand { get; }
@@ -108,11 +124,17 @@ public class MinioDownloadTask : INotifyPropertyChanged
 
         try
         {
+            var stat = await _minio.GetObjectMetadata(Bucket, ObjectKey);
+            // 获取对象信息
+            TotalSize = stat.Size;
+            FileETag = stat.ETag;
             Status = "下载中";
             var updateTask = new MinioDownloadTask
             {
                 TaskId = TaskId,
-                Status = Status
+                Status = Status,
+                TotalSize = TotalSize,
+                FileETag = FileETag
             };
 
             using (var client = SqlSugarConfig.GetSqlSugarScope())
@@ -122,12 +144,22 @@ public class MinioDownloadTask : INotifyPropertyChanged
 
             Console.WriteLine($"id {TaskId} path: {FilePath} key: {ObjectKey}文件下载中...");
             updateTask.Status = "下载中";
-            TotalSize = 5L;
-            var stat = await _minio.GetObjectMetadata(Bucket, ObjectKey);
-            // 获取对象信息
-            TotalSize = stat.Size;
-            FileETag = stat.ETag;
-            await _minio.DownLoadObject(Bucket, ObjectKey, FilePath, "");
+   
+            await _minio.DownLoadObjectWithCallBack(Bucket, ObjectKey, FilePath, FileETag,
+                (downloaded, total) =>
+                {
+                    var progress = (double)downloaded / total * 100;
+                    Downloaded = downloaded;
+                    using (var client = SqlSugarConfig.GetSqlSugarScope())
+                    {
+                        updateTask.Downloaded = downloaded;
+                        client.Updateable(updateTask).IgnoreNullColumns().ExecuteCommandAsync();
+                    }
+
+                    Progress = $"{progress:f2}%";
+                    Console.WriteLine($"文件 {FileName} 进度 {Progress}");
+                });
+            //await _minio.DownLoadObject(Bucket, ObjectKey, FilePath, "");
             Status = "已完成";
             updateTask.Status = Status;
             updateTask.FinishedTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");

Services/MinioService.cs

@@ -398,5 +398,54 @@ namespace Hopetry.Services
 
             #endregion
         }
+
+        public async Task DownLoadObjectWithCallBack(string bucketName, string objectKey, string filePath,
+            string fileETag, Action<long, long> action)
+        {
+            long totalBytes = 0;
+            var index = objectKey.LastIndexOf("/", StringComparison.Ordinal);
+            if (index > 0)
+            {
+                var dir = Path.Combine(filePath, objectKey.Substring(0, index));
+                if (!Directory.Exists(dir))
+                {
+                    Directory.CreateDirectory(dir);
+                }
+            }
+
+            var args = new StatObjectArgs()
+                .WithBucket(string.IsNullOrEmpty(bucketName) ? _bucketName : bucketName)
+                .WithObject(objectKey);
+            var stat = await _minioClient.StatObjectAsync(args);
+            totalBytes = stat.Size;
+
+            var localPath = Path.Combine(filePath, objectKey.Replace('/', Path.DirectorySeparatorChar));
+            GetObjectArgs getObjectArgs = new GetObjectArgs()
+                .WithBucket(string.IsNullOrEmpty(bucketName) ? _bucketName : bucketName)
+                .WithObject(objectKey)
+                .WithCallbackStream((stream) =>
+                {
+                    long bytesRead = 0;
+                    byte[] buffer = new byte[64 * 1024]; // 64KB 缓冲区
+                    int read;
+                    using (var fileStream = File.Create(localPath))
+                    {
+                        while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
+                        {
+                            fileStream.Write(buffer, 0, read);
+                            bytesRead += read;
+                            // 触发进度回调
+                            action?.Invoke(bytesRead, totalBytes);
+                        }
+                    }
+                });
+            await _minioClient.GetObjectAsync(getObjectArgs);
+            /*if (VerifyETag(localPath, objectETag))
+            {
+                // todo 先忽略处理
+            }*/
+
+            Console.WriteLine($"{objectKey} Download complete");
+        }
     }
 }

View/Send/DownControl.xaml

@@ -84,7 +84,7 @@
                                                     Height="15"
                                                     CornerRadius="2"
                                                     Maximum="100"
-                                                    Value="11" />
+                                                    Value="{Binding Progress}" />
 
                                     <TextBlock Grid.Row="1"
                                                Grid.Column="3"