Added UI app.

MangaReader.WinUI/ViewModels/SearchViewModel.cs

@@ -0,0 +1,67 @@
+using CommunityToolkit.Mvvm.Input;
+using MangaReader.Core.Search;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace MangaReader.WinUI.ViewModels;
+
+public partial class SearchViewModel(IMangaSearchCoordinator searchCoordinator) : ViewModelBase
+{
+    private CancellationTokenSource? _cancellationTokenSource;
+
+    private string? _keyword;
+
+    public string? Keyword
+    {
+        get
+        {
+            return _keyword;
+        }
+        set
+        {
+            SetProperty(ref _keyword, value);
+        }
+    }
+
+    private ObservableCollection<MangaSearchResult> _searchResults = [];
+
+    public ObservableCollection<MangaSearchResult> SearchResults
+    {
+        get
+        {
+            return _searchResults;
+        }
+        set
+        {
+            SetProperty(ref _searchResults, value);
+        }
+    }
+
+    public ICommand SearchCommand => new AsyncRelayCommand(SearchAsync);
+
+    public async Task SearchAsync()
+    {
+        if (string.IsNullOrWhiteSpace(Keyword))
+            return;
+
+        _cancellationTokenSource?.Cancel();
+        _cancellationTokenSource = new();
+
+        Dictionary<string, MangaSearchResult[]> result = await searchCoordinator.SearchAsync(Keyword, _cancellationTokenSource.Token);
+
+        List<MangaSearchResult> searchResults = [];
+        
+        foreach (var item in result)
+        {
+            foreach (MangaSearchResult searchResult in item.Value)
+            {
+                searchResults.Add(searchResult);
+            }
+        }
+
+        SearchResults = new(searchResults);
+    }
+}