Polish uploader UI and queue handling

clients/photobooth-uploader/PhotoboothUploader/Models/UploadItem.cs

@@ -0,0 +1,74 @@
+using System;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace PhotoboothUploader.Models;
+
+public enum UploadStatus
+{
+    Queued,
+    Uploading,
+    Success,
+    Failed,
+}
+
+public sealed class UploadItem : INotifyPropertyChanged
+{
+    private UploadStatus _status;
+    private DateTimeOffset _updatedAt;
+
+    public UploadItem(string path)
+    {
+        Path = path;
+        FileName = System.IO.Path.GetFileName(path);
+        UpdatedAt = DateTimeOffset.Now;
+        Status = UploadStatus.Queued;
+    }
+
+    public string Path { get; }
+
+    public string FileName { get; }
+
+    public UploadStatus Status
+    {
+        get => _status;
+        set
+        {
+            if (_status != value)
+            {
+                _status = value;
+                UpdatedAt = DateTimeOffset.Now;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(StatusLabel));
+            }
+        }
+    }
+
+    public DateTimeOffset UpdatedAt
+    {
+        get => _updatedAt;
+        private set
+        {
+            _updatedAt = value;
+            OnPropertyChanged();
+            OnPropertyChanged(nameof(UpdatedLabel));
+        }
+    }
+
+    public string StatusLabel => Status switch
+    {
+        UploadStatus.Uploading => "Upload läuft",
+        UploadStatus.Success => "Fertig",
+        UploadStatus.Failed => "Fehlgeschlagen",
+        _ => "Wartet",
+    };
+
+    public string UpdatedLabel => $"{UpdatedAt:HH:mm}";
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    private void OnPropertyChanged([CallerMemberName] string? propertyName = null)
+    {
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+    }
+}