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Refactor MainViewModel and Introduce Services for Better Separation o…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| using System; | ||
| using Avalonia.Data.Converters; | ||
| using Avalonia.Media; | ||
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| namespace ChatAAC.Converters; | ||
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| public class BooleanToBrushConverter : IValueConverter | ||
| { | ||
| public object Convert(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture) | ||
| { | ||
| return value is bool and true ? Brushes.LightYellow : // Highlight favorites | ||
| Brushes.Transparent; | ||
| } | ||
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| public object ConvertBack(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture) | ||
| { | ||
| throw new NotSupportedException(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,30 @@ | ||
| using System; | ||
| using ReactiveUI; | ||
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| namespace ChatAAC.Models; | ||
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| public class AiResponse(string responseText) | ||
| public class AiResponse(string responseText) : ReactiveObject | ||
| { | ||
| public string ResponseText { get; set; } = responseText; | ||
| public DateTime Timestamp { get; set; } = DateTime.Now; | ||
| private string _responseText = responseText; | ||
| private bool _isFavorite; | ||
| private DateTime _timestamp = DateTime.Now; | ||
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| public string ResponseText | ||
| { | ||
| get => _responseText; | ||
| set => this.RaiseAndSetIfChanged(ref _responseText, value); | ||
| } | ||
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| public DateTime Timestamp | ||
| { | ||
| get => _timestamp; | ||
| set => this.RaiseAndSetIfChanged(ref _timestamp, value); | ||
| } | ||
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| public bool IsFavorite | ||
| { | ||
| get => _isFavorite; | ||
| set => this.RaiseAndSetIfChanged(ref _isFavorite, value); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| using System; | ||
| using System.Collections.ObjectModel; | ||
| using System.IO; | ||
| using System.Text.Json; | ||
| using ChatAAC.Models; | ||
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| public class HistoryService | ||
| { | ||
| public ObservableCollection<AiResponse> HistoryItems { get; } = new(); | ||
| public string HistoryFilePath { get; } = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "ChatAAC", "ai_response_history.json"); | ||
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| public void LoadHistory() | ||
| { | ||
| if (!File.Exists(HistoryFilePath)) return; | ||
|
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| try | ||
| { | ||
| var json = File.ReadAllText(HistoryFilePath); | ||
| var history = JsonSerializer.Deserialize<ObservableCollection<AiResponse>>(json); | ||
| if (history != null) | ||
| foreach (var item in history) | ||
| HistoryItems.Add(item); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| Console.WriteLine($"Error loading history: {ex.Message}"); | ||
| } | ||
| } | ||
|
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| public void SaveHistory() | ||
| { | ||
| try | ||
| { | ||
| var directory = Path.GetDirectoryName(HistoryFilePath); | ||
| if (!string.IsNullOrEmpty(directory) && !Directory.Exists(directory)) | ||
| Directory.CreateDirectory(directory); | ||
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| var options = new JsonSerializerOptions { WriteIndented = true }; | ||
| var json = JsonSerializer.Serialize(HistoryItems, options); | ||
| File.WriteAllText(HistoryFilePath, json); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| Console.WriteLine($"Error saving history: {ex.Message}"); | ||
| } | ||
| } | ||
|
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| public void AddToHistory(AiResponse response) | ||
| { | ||
| HistoryItems.Add(response); | ||
| SaveHistory(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| using System; | ||
| using System.Collections.ObjectModel; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using ReactiveUI; | ||
| using System.Reactive; | ||
| using System.Text.Json; | ||
| using System.Threading.Tasks; | ||
| using ChatAAC.Models; | ||
| using ChatAAC.Services; | ||
|
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| namespace ChatAAC.ViewModels | ||
| { | ||
| public class HistoryViewModel : ReactiveObject | ||
| { | ||
| public ObservableCollection<AiResponse> HistoryItems { get; } | ||
| public AiResponse? SelectedHistoryItem { get; set; } | ||
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| public HistoryViewModel(ObservableCollection<AiResponse> historyItems, string historyPath) | ||
| { | ||
| HistoryItems = historyItems; | ||
| HistoryFilePath = historyPath; | ||
|
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| SortNewestToOldestCommand = ReactiveCommand.Create(SortNewestToOldest); | ||
| SortOldestToNewestCommand = ReactiveCommand.Create(SortOldestToNewest); | ||
| SortFavoritesCommand = ReactiveCommand.Create(SortFavorites); | ||
| ToggleFavoriteCommand = ReactiveCommand.Create<AiResponse>(ToggleFavorite); | ||
| SpeakSelectedEntryCommand = ReactiveCommand.Create(SpeakSelectedEntry); | ||
| SelectionChangedCommand = ReactiveCommand.CreateFromTask<AiResponse>(OnSelectionChanged); | ||
| } | ||
|
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| private string HistoryFilePath { get; set; } | ||
|
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| public ReactiveCommand<Unit, Unit> SortNewestToOldestCommand { get; } | ||
| public ReactiveCommand<Unit, Unit> SortOldestToNewestCommand { get; } | ||
| public ReactiveCommand<Unit, Unit> SortFavoritesCommand { get; } | ||
| public ReactiveCommand<AiResponse, Unit> ToggleFavoriteCommand { get; } | ||
| public ReactiveCommand<Unit, Task> SpeakSelectedEntryCommand { get; } | ||
| public ReactiveCommand<AiResponse, Unit> SelectionChangedCommand { get; } | ||
| private void SortNewestToOldest() | ||
| { | ||
| var sorted = HistoryItems.OrderByDescending(item => item.Timestamp).ToList(); | ||
| HistoryItems.Clear(); | ||
| foreach (var item in sorted) | ||
| HistoryItems.Add(item); | ||
| } | ||
|
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| private void SortOldestToNewest() | ||
| { | ||
| var sorted = HistoryItems.OrderBy(item => item.Timestamp).ToList(); | ||
| HistoryItems.Clear(); | ||
| foreach (var item in sorted) | ||
| HistoryItems.Add(item); | ||
| } | ||
|
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| private void SortFavorites() | ||
| { | ||
| var sorted = HistoryItems.OrderByDescending(item => item.IsFavorite).ThenByDescending(item => item.Timestamp).ToList(); | ||
| HistoryItems.Clear(); | ||
| foreach (var item in sorted) | ||
| HistoryItems.Add(item); | ||
| } | ||
|
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| private void ToggleFavorite(AiResponse item) | ||
| { | ||
| item.IsFavorite = !item.IsFavorite; // Toggle favorite status | ||
| SaveHistory(); | ||
| } | ||
|
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| private void SaveHistory() | ||
| { | ||
| try | ||
| { | ||
| var directory = Path.GetDirectoryName(HistoryFilePath); | ||
| if (!string.IsNullOrEmpty(directory) && !Directory.Exists(directory)) | ||
| Directory.CreateDirectory(directory); | ||
|
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| var options = new JsonSerializerOptions { WriteIndented = true }; | ||
| var json = JsonSerializer.Serialize(HistoryItems, options); | ||
| File.WriteAllText(HistoryFilePath, json); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| Console.WriteLine($"Error saving history: {ex.Message}"); | ||
| } | ||
| } | ||
| private async Task OnSelectionChanged(AiResponse item) | ||
| { | ||
| await SpeakSelectedEntry(); // Speak the selected item when changed | ||
| } | ||
| private async Task SpeakSelectedEntry() | ||
| { | ||
| if (SelectedHistoryItem == null) | ||
| return; | ||
|
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| // Implement TTS for the selected history item | ||
| var ttsService = new TtsService(); // Replace with actual TTS service | ||
| await ttsService.SpeakAsync(SelectedHistoryItem.ResponseText); | ||
| } | ||
| } | ||
| } |
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