rework a lot of stuff: downloads, how to watch a player

MareSynchronos/WebAPI/Utils/FileTransfer.cs

@@ -1,8 +1,42 @@
-namespace MareSynchronos.WebAPI.Utils;
+using MareSynchronos.API;
 
-public class FileTransfer
+namespace MareSynchronos.WebAPI.Utils;
+
+public abstract class FileTransfer
 {
+    protected readonly ITransferFileDto TransferDto;
+
+    protected FileTransfer(ITransferFileDto transferDto)
+    {
+        TransferDto = transferDto;
+    }
+
+    public string ForbiddenBy => TransferDto.ForbiddenBy;
     public long Transferred { get; set; } = 0;
-    public long Total { get; set; } = 0;
-    public string Hash { get; set; } = string.Empty;
+    public abstract long Total { get; set; }
+    public string Hash => TransferDto.Hash;
+    public bool IsInTransfer => Transferred != Total && Transferred > 0;
+    public bool IsTransferred => Transferred == Total;
+    public virtual bool CanBeTransferred => !TransferDto.IsForbidden;
+    public bool IsForbidden => TransferDto.IsForbidden;
+}
+
+public class UploadFileTransfer : FileTransfer
+{
+    public UploadFileTransfer(UploadFileDto dto) : base(dto) { }
+    public override long Total { get; set; }
+}
+
+public class DownloadFileTransfer : FileTransfer
+{
+    private DownloadFileDto Dto => (DownloadFileDto)TransferDto;
+    public DownloadFileTransfer(DownloadFileDto dto) : base(dto) { }
+
+    public override long Total
+    {
+        set { }
+        get => Dto.Size;
+    }
+
+    public override bool CanBeTransferred => Dto.FileExists && !Dto.IsForbidden && Dto.Size > 0;
 }