| 1 | #nullable enable |
| 2 | |
| 3 | using System.Collections.ObjectModel; |
| 4 | using CascadeIDE.Services; |
| 5 | using CommunityToolkit.Mvvm.ComponentModel; |
| 6 | |
| 7 | namespace CascadeIDE.Features.Chat; |
| 8 | |
| 9 | public partial class ChatPanelViewModel |
| 10 | { |
| 11 | private const int BracketAutocompleteDebounceMs = 80; |
| 12 | |
| 13 | private CancellationTokenSource? _bracketAutocompleteDebounceCts; |
| 14 | /// <summary>Строки popup (slash или bracket) — один список для Skia.</summary> |
| 15 | public ObservableCollection<ChatSlashSuggestionItem> ComposerPopupSuggestions { get; } = []; |
| 16 | |
| 17 | public ObservableCollection<ChatBracketSuggestionItem> ChatBracketSuggestions { get; } = []; |
| 18 | |
| 19 | [ObservableProperty] |
| 20 | private bool _isChatBracketAutocompleteVisible; |
| 21 | |
| 22 | [ObservableProperty] |
| 23 | private int _selectedChatBracketSuggestionIndex = -1; |
| 24 | |
| 25 | partial void OnSelectedChatSlashSuggestionIndexChanged(int value) |
| 26 | { |
| 27 | _ = value; |
| 28 | NotifyComposerAutocompleteSelectionChanged(); |
| 29 | } |
| 30 | |
| 31 | partial void OnSelectedChatBracketSuggestionIndexChanged(int value) |
| 32 | { |
| 33 | _ = value; |
| 34 | NotifyComposerAutocompleteSelectionChanged(); |
| 35 | } |
| 36 | |
| 37 | private void NotifyComposerAutocompleteSelectionChanged() |
| 38 | { |
| 39 | OnPropertyChanged(nameof(ComposerAutocompleteSelectionIndex)); |
| 40 | OnPropertyChanged(nameof(SelectedComposerAutocompleteIndex)); |
| 41 | } |
| 42 | |
| 43 | /// <summary>Slash или bracket — для UI popup и клавиш.</summary> |
| 44 | public bool IsComposerAutocompleteVisible => |
| 45 | IsChatSlashAutocompleteVisible || IsChatBracketAutocompleteVisible; |
| 46 | |
| 47 | public int ComposerAutocompleteSelectionIndex => |
| 48 | IsChatBracketAutocompleteVisible |
| 49 | ? SelectedChatBracketSuggestionIndex |
| 50 | : SelectedChatSlashSuggestionIndex; |
| 51 | |
| 52 | public int SelectedComposerAutocompleteIndex |
| 53 | { |
| 54 | get => ComposerAutocompleteSelectionIndex; |
| 55 | set |
| 56 | { |
| 57 | if (IsChatBracketAutocompleteVisible) |
| 58 | SelectedChatBracketSuggestionIndex = value; |
| 59 | else |
| 60 | SelectedChatSlashSuggestionIndex = value; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | partial void OnChatComposerCaretIndexChanged(int value) |
| 65 | { |
| 66 | RefreshComposerAutocomplete(); |
| 67 | RefreshComposerSlashPreview(); |
| 68 | } |
| 69 | |
| 70 | /// <summary>Slash popup для Cockpit Command Line (тот же каталог, что у composer).</summary> |
| 71 | public void RefreshCockpitCommandLineAutocomplete(string? inputOverride = null, int? caretOverride = null) |
| 72 | { |
| 73 | if (!IsCockpitCommandLineOpen) |
| 74 | return; |
| 75 | |
| 76 | IsChatBracketAutocompleteVisible = false; |
| 77 | ChatBracketSuggestions.Clear(); |
| 78 | SelectedChatBracketSuggestionIndex = -1; |
| 79 | RefreshChatSlashAutocomplete( |
| 80 | inputOverride ?? CockpitCommandLineText, |
| 81 | caretOverride ?? CockpitCommandLineCaretIndex); |
| 82 | } |
| 83 | |
| 84 | public void RefreshComposerAutocomplete(string? inputOverride = null, int? caretOverride = null) |
| 85 | { |
| 86 | if (IsCockpitCommandLineOpen) |
| 87 | { |
| 88 | RefreshCockpitCommandLineAutocomplete(inputOverride, caretOverride); |
| 89 | return; |
| 90 | } |
| 91 | |
| 92 | var text = inputOverride ?? ChatInput; |
| 93 | var caret = Math.Clamp(caretOverride ?? ChatComposerCaretIndex, 0, text.Length); |
| 94 | |
| 95 | if (ChatBracketAutocomplete.TryGetEditState(text, caret, out var bracketState)) |
| 96 | { |
| 97 | scheduleAnchorDraftPreview(text, caret); |
| 98 | var syncBracketRefresh = bracketState.ActiveAxis == ChatBracketAutocomplete.Axis.Start |
| 99 | && bracketState.AxisPrefix.Length == 0; |
| 100 | if (syncBracketRefresh) |
| 101 | RefreshChatBracketAutocomplete(text, caret); |
| 102 | else |
| 103 | scheduleBracketAutocompleteRefresh(text, caret); |
| 104 | |
| 105 | if (syncBracketRefresh && IsChatBracketAutocompleteVisible) |
| 106 | { |
| 107 | IsChatSlashAutocompleteVisible = false; |
| 108 | ChatSlashSuggestions.Clear(); |
| 109 | rebuildComposerPopup(); |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | if (!syncBracketRefresh) |
| 114 | { |
| 115 | IsChatSlashAutocompleteVisible = false; |
| 116 | ChatSlashSuggestions.Clear(); |
| 117 | rebuildComposerPopup(); |
| 118 | return; |
| 119 | } |
| 120 | } |
| 121 | else |
| 122 | { |
| 123 | _bracketAutocompleteDebounceCts?.Cancel(); |
| 124 | IsChatBracketAutocompleteVisible = false; |
| 125 | ChatBracketSuggestions.Clear(); |
| 126 | SelectedChatBracketSuggestionIndex = -1; |
| 127 | clearAnchorDraftPreview(); |
| 128 | } |
| 129 | |
| 130 | RefreshChatSlashAutocomplete(text, caretOverride: caret); |
| 131 | rebuildComposerPopup(); |
| 132 | RefreshComposerSlashPreview(text, caret); |
| 133 | } |
| 134 | |
| 135 | private void rebuildComposerPopup() |
| 136 | { |
| 137 | ComposerPopupSuggestions.Clear(); |
| 138 | if (IsChatBracketAutocompleteVisible) |
| 139 | { |
| 140 | foreach (var b in ChatBracketSuggestions) |
| 141 | { |
| 142 | ComposerPopupSuggestions.Add(new ChatSlashSuggestionItem( |
| 143 | new ChatSlashSuggestion(b.Display, b.Display, b.Help, b.Group))); |
| 144 | } |
| 145 | } |
| 146 | else if (IsChatSlashAutocompleteVisible) |
| 147 | { |
| 148 | foreach (var s in ChatSlashSuggestions) |
| 149 | ComposerPopupSuggestions.Add(s); |
| 150 | } |
| 151 | |
| 152 | OnPropertyChanged(nameof(IsComposerAutocompleteVisible)); |
| 153 | NotifyComposerAutocompleteSelectionChanged(); |
| 154 | } |
| 155 | |
| 156 | private void scheduleBracketAutocompleteRefresh(string text, int caret) |
| 157 | { |
| 158 | _bracketAutocompleteDebounceCts?.Cancel(); |
| 159 | _bracketAutocompleteDebounceCts = new CancellationTokenSource(); |
| 160 | var cts = _bracketAutocompleteDebounceCts; |
| 161 | var capturedText = text; |
| 162 | var capturedCaret = caret; |
| 163 | _ = refreshBracketAutocompleteDebouncedAsync(capturedText, capturedCaret, cts); |
| 164 | } |
| 165 | |
| 166 | private async Task refreshBracketAutocompleteDebouncedAsync( |
| 167 | string text, |
| 168 | int caret, |
| 169 | CancellationTokenSource cts) |
| 170 | { |
| 171 | try |
| 172 | { |
| 173 | await Task.Delay(BracketAutocompleteDebounceMs, cts.Token).ConfigureAwait(false); |
| 174 | } |
| 175 | catch (OperationCanceledException) |
| 176 | { |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | await UiScheduler.Default.InvokeAsync(() => |
| 181 | { |
| 182 | if (cts.IsCancellationRequested) |
| 183 | return; |
| 184 | |
| 185 | if (!ChatBracketAutocomplete.TryGetEditState(text, caret, out _)) |
| 186 | { |
| 187 | IsChatBracketAutocompleteVisible = false; |
| 188 | ChatBracketSuggestions.Clear(); |
| 189 | return; |
| 190 | } |
| 191 | |
| 192 | RefreshChatBracketAutocomplete(text, caret); |
| 193 | rebuildComposerPopup(); |
| 194 | scheduleAnchorDraftPreview(text, caret); |
| 195 | }).ConfigureAwait(false); |
| 196 | } |
| 197 | |
| 198 | private void RefreshChatBracketAutocomplete(string text, int caret) |
| 199 | { |
| 200 | var suggestions = ChatBracketAutocomplete.GetSuggestions( |
| 201 | text, |
| 202 | caret, |
| 203 | _getCurrentFilePath?.Invoke(), |
| 204 | _getWorkspaceRoot(), |
| 205 | _workspaceFileSlashCompletion); |
| 206 | |
| 207 | ChatBracketSuggestions.Clear(); |
| 208 | if (!ChatBracketAutocomplete.TryGetEditState(text, caret, out var state)) |
| 209 | { |
| 210 | IsChatBracketAutocompleteVisible = false; |
| 211 | SelectedChatBracketSuggestionIndex = -1; |
| 212 | return; |
| 213 | } |
| 214 | |
| 215 | foreach (var s in suggestions) |
| 216 | ChatBracketSuggestions.Add(new ChatBracketSuggestionItem(s, state.BracketStart, state.CaretIndex)); |
| 217 | |
| 218 | var visible = ChatBracketSuggestions.Count > 0; |
| 219 | if (IsChatBracketAutocompleteVisible != visible) |
| 220 | IsChatBracketAutocompleteVisible = visible; |
| 221 | else |
| 222 | OnPropertyChanged(nameof(IsChatBracketAutocompleteVisible)); |
| 223 | |
| 224 | SelectedChatBracketSuggestionIndex = visible ? 0 : -1; |
| 225 | } |
| 226 | |
| 227 | public void MoveChatBracketSuggestionSelection(int delta) |
| 228 | { |
| 229 | if (ChatBracketSuggestions.Count == 0) |
| 230 | return; |
| 231 | |
| 232 | if (SelectedChatBracketSuggestionIndex < 0) |
| 233 | SelectedChatBracketSuggestionIndex = 0; |
| 234 | else |
| 235 | { |
| 236 | var next = SelectedChatBracketSuggestionIndex + delta; |
| 237 | if (next < 0) |
| 238 | next = ChatBracketSuggestions.Count - 1; |
| 239 | else if (next >= ChatBracketSuggestions.Count) |
| 240 | next = 0; |
| 241 | SelectedChatBracketSuggestionIndex = next; |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | public bool TryCommitSelectedBracketSuggestion() |
| 246 | { |
| 247 | if (ChatBracketSuggestions.Count == 0) |
| 248 | return false; |
| 249 | |
| 250 | var idx = SelectedChatBracketSuggestionIndex < 0 ? 0 : SelectedChatBracketSuggestionIndex; |
| 251 | if (idx >= ChatBracketSuggestions.Count) |
| 252 | idx = 0; |
| 253 | |
| 254 | var item = ChatBracketSuggestions[idx]; |
| 255 | var tail = item.AddClosingBracket ? "]" : ""; |
| 256 | var newText = ChatInput[..item.BracketStart] |
| 257 | + "[" |
| 258 | + item.NewBracketInner |
| 259 | + tail |
| 260 | + ChatInput[item.ReplaceEnd..]; |
| 261 | |
| 262 | ChatComposerCaretIndex = item.BracketStart + 1 + item.NewBracketInner.Length + tail.Length; |
| 263 | ChatInput = newText; |
| 264 | IsChatBracketAutocompleteVisible = false; |
| 265 | ChatBracketSuggestions.Clear(); |
| 266 | OnPropertyChanged(nameof(IsComposerAutocompleteVisible)); |
| 267 | RefreshComposerAutocomplete(); |
| 268 | scheduleAnchorDraftPreview(newText, ChatComposerCaretIndex); |
| 269 | return true; |
| 270 | } |
| 271 | |
| 272 | public void DismissChatBracketAutocomplete() |
| 273 | { |
| 274 | IsChatBracketAutocompleteVisible = false; |
| 275 | ChatBracketSuggestions.Clear(); |
| 276 | clearAnchorDraftPreview(); |
| 277 | OnPropertyChanged(nameof(IsComposerAutocompleteVisible)); |
| 278 | } |
| 279 | |
| 280 | public void MoveComposerAutocompleteSelection(int delta) |
| 281 | { |
| 282 | if (!IsComposerAutocompleteVisible) |
| 283 | return; |
| 284 | |
| 285 | if (IsChatBracketAutocompleteVisible) |
| 286 | MoveChatBracketSuggestionSelection(delta); |
| 287 | else |
| 288 | MoveChatSlashSuggestionSelection(delta); |
| 289 | |
| 290 | NotifyComposerAutocompleteSelectionChanged(); |
| 291 | } |
| 292 | |
| 293 | public bool TryCommitSelectedComposerSuggestion(out bool shouldAutoExecute) |
| 294 | { |
| 295 | shouldAutoExecute = false; |
| 296 | if (IsChatBracketAutocompleteVisible) |
| 297 | return TryCommitSelectedBracketSuggestion(); |
| 298 | |
| 299 | return TryCommitSelectedChatSlashSuggestion(out shouldAutoExecute); |
| 300 | } |
| 301 | } |
| 302 | |