| 1 | import 'package:cue/cue.dart'; |
| 2 | import 'package:hugeicons/hugeicons.dart'; |
| 3 | import 'package:flutter/material.dart'; |
| 4 | import 'package:flutter_riverpod/flutter_riverpod.dart'; |
| 5 | import 'package:go_router/go_router.dart'; |
| 6 | import 'package:localmind/core/models/enums.dart'; |
| 7 | import 'package:localmind/core/providers/service_providers.dart'; |
| 8 | import 'package:localmind/core/routes/app_routes.dart'; |
| 9 | import 'package:localmind/core/theme/colors.dart'; |
| 10 | import 'package:localmind/features/chat/providers/chat_providers.dart'; |
| 11 | import 'package:localmind/features/on_device/components/on_device_picker_section.dart'; |
| 12 | import 'package:localmind/features/on_device/providers/on_device_providers.dart'; |
| 13 | import 'package:localmind/features/servers/providers/server_providers.dart'; |
| 14 | import 'package:localmind/features/lm_studio_catalog/views/lm_studio_download_widgets.dart'; |
| 15 | import 'package:localmind/core/providers/app_providers.dart'; |
| 16 | import 'package:localmind/features/conversations/providers/conversation_providers.dart' |
| 17 | as conv; |
| 18 | import 'package:localmind/l10n/app_localizations.dart'; |
| 19 | import '../components/model_list.dart'; |
| 20 | import '../components/model_search_field.dart'; |
| 21 | import '../components/model_sort_control.dart'; |
| 22 | import '../components/no_server_state.dart'; |
| 23 | import '../components/thinking_indicator.dart'; |
| 24 | import '../providers/model_picker_providers.dart'; |
| 25 | |
| 26 | class ModelPickerSheet extends ConsumerStatefulWidget { |
| 27 | const ModelPickerSheet({super.key}); |
| 28 | |
| 29 | @override |
| 30 | ConsumerState<ModelPickerSheet> createState() => _ModelPickerSheetState(); |
| 31 | } |
| 32 | |
| 33 | class _ModelPickerSheetState extends ConsumerState<ModelPickerSheet> { |
| 34 | @override |
| 35 | void deactivate() { |
| 36 | // Reset search when the sheet closes so the next open starts from a |
| 37 | // clean, matching state instead of an empty box that's still filtering. |
| 38 | try { |
| 39 | final searchNotifier = ref.read(modelSearchQueryProvider.notifier); |
| 40 | Future.microtask(() => searchNotifier.clear()); |
| 41 | } catch (_) {} |
| 42 | super.deactivate(); |
| 43 | } |
| 44 | |
| 45 | @override |
| 46 | Widget build(BuildContext context) { |
| 47 | final l10n = AppLocalizations.of(context)!; |
| 48 | final theme = Theme.of(context); |
| 49 | final isDark = theme.brightness == Brightness.dark; |
| 50 | final activeServer = ref.watch(activeServerProvider); |
| 51 | final selectedModel = ref.watch(selectedModelProvider); |
| 52 | final isThinking = ref.watch(modelThinkingProvider); |
| 53 | |
| 54 | ref.listen(onDeviceEngineProvider, (prev, next) { |
| 55 | if (next.status == OnDeviceEngineStatus.loaded && |
| 56 | prev?.status == OnDeviceEngineStatus.loading) { |
| 57 | final loadedId = next.loadedModelId; |
| 58 | final models = ref.read(onDeviceModelsProvider); |
| 59 | final loadedName = loadedId == null |
| 60 | ? 'Unknown' |
| 61 | : models |
| 62 | .where((m) => m.id == loadedId) |
| 63 | .map((m) => m.name) |
| 64 | .followedBy([loadedId]) |
| 65 | .first; |
| 66 | WidgetsBinding.instance.addPostFrameCallback((_) { |
| 67 | if (!context.mounted) return; |
| 68 | ScaffoldMessenger.maybeOf(context)?.showSnackBar( |
| 69 | SnackBar( |
| 70 | content: Text( |
| 71 | l10n.model_loaded(loadedName, next.backend?.name ?? 'CPU'), |
| 72 | ), |
| 73 | ), |
| 74 | ); |
| 75 | }); |
| 76 | } |
| 77 | }); |
| 78 | |
| 79 | final serversAsync = ref.watch(serversProvider); |
| 80 | final servers = serversAsync.value ?? []; |
| 81 | final currentServer = servers |
| 82 | .where((s) => s.id == activeServer?.id) |
| 83 | .firstOrNull; |
| 84 | final isOnDevice = |
| 85 | (activeServer != null && |
| 86 | (activeServer.type == ServerType.onDevice || |
| 87 | activeServer.id == 'on-device' || |
| 88 | activeServer.name.trim().toLowerCase() == 'on-device')) || |
| 89 | (currentServer != null && |
| 90 | (currentServer.type == ServerType.onDevice || |
| 91 | currentServer.id == 'on-device' || |
| 92 | currentServer.name.trim().toLowerCase() == 'on-device')); |
| 93 | final isLmStudio = |
| 94 | currentServer != null && currentServer.type == ServerType.lmStudio; |
| 95 | |
| 96 | final loadedModelsAsync = activeServer != null |
| 97 | ? ref.watch(loadedModelsProvider(activeServer)) |
| 98 | : const AsyncValue<Set<String>>.data(<String>{}); |
| 99 | final loadedCount = loadedModelsAsync.maybeWhen( |
| 100 | data: (models) => models.length, |
| 101 | orElse: () => 0, |
| 102 | ); |
| 103 | |
| 104 | return DraggableScrollableSheet( |
| 105 | initialChildSize: 0.7, |
| 106 | minChildSize: 0.4, |
| 107 | maxChildSize: 1.0, |
| 108 | expand: false, |
| 109 | builder: (context, scrollController) { |
| 110 | return Cue.onMount( |
| 111 | motion: .smooth(), |
| 112 | child: Container( |
| 113 | padding: const EdgeInsets.all(16), |
| 114 | decoration: BoxDecoration( |
| 115 | color: isDark ? AppColors.darkBackground : AppColors.lightSurface, |
| 116 | borderRadius: const BorderRadius.vertical( |
| 117 | top: Radius.circular(20), |
| 118 | ), |
| 119 | ), |
| 120 | child: Column( |
| 121 | crossAxisAlignment: CrossAxisAlignment.start, |
| 122 | children: [ |
| 123 | Center( |
| 124 | child: Container( |
| 125 | width: 40, |
| 126 | height: 4, |
| 127 | decoration: BoxDecoration( |
| 128 | color: isDark ? Colors.grey[600] : Colors.grey[300], |
| 129 | borderRadius: BorderRadius.circular(2), |
| 130 | ), |
| 131 | ), |
| 132 | ), |
| 133 | const SizedBox(height: 16), |
| 134 | _ModelPickerHeader( |
| 135 | isDark: isDark, |
| 136 | isThinking: isThinking, |
| 137 | loadedCount: loadedCount, |
| 138 | serverName: activeServer?.name, |
| 139 | showBrowseButton: isLmStudio, |
| 140 | onBrowseModels: isLmStudio |
| 141 | ? () { |
| 142 | Navigator.of(context).pop(); |
| 143 | context.push( |
| 144 | AppRoutes.lmStudioModelBrowser, |
| 145 | extra: currentServer, |
| 146 | ); |
| 147 | } |
| 148 | : null, |
| 149 | onRefresh: activeServer != null |
| 150 | ? () { |
| 151 | ref.invalidate( |
| 152 | availableModelsProvider(activeServer.id), |
| 153 | ); |
| 154 | ref.invalidate(loadedModelsProvider(activeServer)); |
| 155 | } |
| 156 | : null, |
| 157 | onUnloadAll: activeServer != null && loadedCount > 0 |
| 158 | ? () => _unloadAllModels(context, ref, activeServer) |
| 159 | : null, |
| 160 | ), |
| 161 | const SizedBox(height: 12), |
| 162 | Row( |
| 163 | children: [ |
| 164 | const Expanded(child: ModelSearchField()), |
| 165 | const SizedBox(width: 8), |
| 166 | const ModelSortControl(), |
| 167 | ], |
| 168 | ), |
| 169 | const SizedBox(height: 12), |
| 170 | Expanded( |
| 171 | child: activeServer == null |
| 172 | ? NoServerState(isDark: isDark) |
| 173 | : isOnDevice |
| 174 | ? OnDevicePickerSection( |
| 175 | selectedModelId: selectedModel?.id, |
| 176 | isDark: isDark, |
| 177 | scrollController: scrollController, |
| 178 | ) |
| 179 | : ModelList( |
| 180 | serverId: activeServer.id, |
| 181 | selectedModelId: selectedModel?.id, |
| 182 | isDark: isDark, |
| 183 | scrollController: scrollController, |
| 184 | ), |
| 185 | ), |
| 186 | ], |
| 187 | ), |
| 188 | ), |
| 189 | ); |
| 190 | }, |
| 191 | ); |
| 192 | } |
| 193 | |
| 194 | Future<void> _unloadAllModels( |
| 195 | BuildContext context, |
| 196 | WidgetRef ref, |
| 197 | dynamic activeServer, |
| 198 | ) async { |
| 199 | final l10n = AppLocalizations.of(context)!; |
| 200 | |
| 201 | try { |
| 202 | if (activeServer.type == ServerType.onDevice || |
| 203 | activeServer.id == 'on-device') { |
| 204 | await ref.read(onDeviceEngineProvider.notifier).unloadModel(); |
| 205 | } else { |
| 206 | final loadedInstances = await ref.read( |
| 207 | loadedModelsProvider(activeServer).future, |
| 208 | ); |
| 209 | final apiService = ref.read(serverApiServiceProvider); |
| 210 | await apiService.unloadAllInstances(activeServer, loadedInstances); |
| 211 | } |
| 212 | |
| 213 | if (context.mounted) { |
| 214 | ref.invalidate(loadedModelsProvider(activeServer)); |
| 215 | ref.read(selectedModelProvider.notifier).clear(); |
| 216 | ScaffoldMessenger.maybeOf( |
| 217 | context, |
| 218 | )?.showSnackBar(SnackBar(content: Text(l10n.all_models_unloaded))); |
| 219 | } |
| 220 | } catch (e) { |
| 221 | if (context.mounted) { |
| 222 | ScaffoldMessenger.maybeOf(context)?.showSnackBar( |
| 223 | SnackBar( |
| 224 | content: Text(l10n.model_unload_failed(e.toString())), |
| 225 | backgroundColor: Colors.red, |
| 226 | ), |
| 227 | ); |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | class _ModelPickerHeader extends ConsumerWidget { |
| 234 | const _ModelPickerHeader({ |
| 235 | required this.isDark, |
| 236 | required this.isThinking, |
| 237 | required this.loadedCount, |
| 238 | this.serverName, |
| 239 | this.showBrowseButton = false, |
| 240 | this.onBrowseModels, |
| 241 | this.onRefresh, |
| 242 | this.onUnloadAll, |
| 243 | }); |
| 244 | |
| 245 | final bool isDark; |
| 246 | final bool isThinking; |
| 247 | final int loadedCount; |
| 248 | final String? serverName; |
| 249 | final bool showBrowseButton; |
| 250 | final VoidCallback? onBrowseModels; |
| 251 | final VoidCallback? onRefresh; |
| 252 | final VoidCallback? onUnloadAll; |
| 253 | |
| 254 | @override |
| 255 | Widget build(BuildContext context, WidgetRef ref) { |
| 256 | final l10n = AppLocalizations.of(context)!; |
| 257 | final settings = ref.watch(settingsProvider); |
| 258 | final activeConv = ref.watch(conv.activeConversationProvider); |
| 259 | final contextLength = activeConv?.contextLength ?? settings.contextLength; |
| 260 | |
| 261 | final hasSubtitle = serverName != null || loadedCount > 0; |
| 262 | |
| 263 | return Row( |
| 264 | crossAxisAlignment: CrossAxisAlignment.center, |
| 265 | children: [ |
| 266 | Expanded( |
| 267 | child: Column( |
| 268 | crossAxisAlignment: CrossAxisAlignment.start, |
| 269 | children: [ |
| 270 | Row( |
| 271 | children: [ |
| 272 | Flexible( |
| 273 | child: Text( |
| 274 | l10n.select_model_title, |
| 275 | style: TextStyle( |
| 276 | fontSize: 20, |
| 277 | fontWeight: FontWeight.bold, |
| 278 | color: isDark ? Colors.white : Colors.black, |
| 279 | ), |
| 280 | overflow: TextOverflow.ellipsis, |
| 281 | maxLines: 1, |
| 282 | ), |
| 283 | ), |
| 284 | if (isThinking) ...[ |
| 285 | const SizedBox(width: 8), |
| 286 | ThinkingIndicator(isDark: isDark), |
| 287 | ], |
| 288 | ], |
| 289 | ), |
| 290 | if (hasSubtitle) ...[ |
| 291 | const SizedBox(height: 2), |
| 292 | Row( |
| 293 | children: [ |
| 294 | if (serverName != null) |
| 295 | Text( |
| 296 | serverName!, |
| 297 | style: TextStyle( |
| 298 | fontSize: 13, |
| 299 | color: isDark |
| 300 | ? AppColors.darkMutedText |
| 301 | : AppColors.lightMutedText, |
| 302 | ), |
| 303 | ), |
| 304 | if (serverName != null && loadedCount > 0) |
| 305 | const SizedBox(width: 8), |
| 306 | if (loadedCount > 0) |
| 307 | Container( |
| 308 | padding: const EdgeInsets.symmetric( |
| 309 | horizontal: 8, |
| 310 | vertical: 2, |
| 311 | ), |
| 312 | decoration: BoxDecoration( |
| 313 | color: |
| 314 | (isDark |
| 315 | ? AppColors.darkAccent |
| 316 | : AppColors.lightAccent) |
| 317 | .withValues(alpha: 0.15), |
| 318 | borderRadius: BorderRadius.circular(999), |
| 319 | ), |
| 320 | child: Text( |
| 321 | l10n.loaded_models_count(loadedCount), |
| 322 | style: TextStyle( |
| 323 | fontSize: 11, |
| 324 | fontWeight: FontWeight.w600, |
| 325 | color: isDark |
| 326 | ? AppColors.darkAccent |
| 327 | : AppColors.lightAccent, |
| 328 | ), |
| 329 | ), |
| 330 | ), |
| 331 | ], |
| 332 | ), |
| 333 | ], |
| 334 | ], |
| 335 | ), |
| 336 | ), |
| 337 | Row( |
| 338 | mainAxisSize: MainAxisSize.min, |
| 339 | children: [ |
| 340 | Material( |
| 341 | color: Colors.transparent, |
| 342 | child: InkWell( |
| 343 | onTap: () => _showContextLengthDialog( |
| 344 | context, |
| 345 | ref, |
| 346 | contextLength, |
| 347 | activeConv?.id, |
| 348 | ), |
| 349 | borderRadius: BorderRadius.circular(16), |
| 350 | child: Container( |
| 351 | padding: const EdgeInsets.symmetric( |
| 352 | horizontal: 10, |
| 353 | vertical: 6, |
| 354 | ), |
| 355 | decoration: BoxDecoration( |
| 356 | border: Border.all( |
| 357 | color: isDark ? Colors.grey[800]! : Colors.grey[300]!, |
| 358 | ), |
| 359 | borderRadius: BorderRadius.circular(16), |
| 360 | color: isDark ? Colors.grey[900] : Colors.grey[50], |
| 361 | ), |
| 362 | child: Row( |
| 363 | mainAxisSize: MainAxisSize.min, |
| 364 | children: [ |
| 365 | HugeIcon( |
| 366 | icon: HugeIcons.strokeRoundedLayers01, |
| 367 | size: 14, |
| 368 | color: isDark ? Colors.grey[400] : Colors.grey[600], |
| 369 | ), |
| 370 | const SizedBox(width: 4), |
| 371 | Text( |
| 372 | '$contextLength', |
| 373 | style: TextStyle( |
| 374 | fontSize: 12, |
| 375 | fontWeight: FontWeight.w600, |
| 376 | color: isDark ? Colors.white : Colors.black87, |
| 377 | ), |
| 378 | ), |
| 379 | ], |
| 380 | ), |
| 381 | ), |
| 382 | ), |
| 383 | ), |
| 384 | const SizedBox(width: 4), |
| 385 | if (onUnloadAll != null) |
| 386 | IconButton( |
| 387 | onPressed: onUnloadAll, |
| 388 | tooltip: l10n.unload_all_models, |
| 389 | icon: HugeIcon( |
| 390 | icon: HugeIcons.strokeRoundedPower, |
| 391 | size: 20, |
| 392 | color: Colors.red[400], |
| 393 | ), |
| 394 | ), |
| 395 | if (showBrowseButton && onBrowseModels != null) |
| 396 | IconButton( |
| 397 | onPressed: onBrowseModels, |
| 398 | tooltip: l10n.lm_studio_browse_models, |
| 399 | icon: const HugeIcon( |
| 400 | icon: HugeIcons.strokeRoundedCompass01, |
| 401 | size: 20, |
| 402 | ), |
| 403 | ), |
| 404 | const LmDownloadIndicatorButton(compact: true), |
| 405 | if (onRefresh != null) |
| 406 | IconButton( |
| 407 | icon: const HugeIcon( |
| 408 | icon: HugeIcons.strokeRoundedRefresh, |
| 409 | size: 20, |
| 410 | ), |
| 411 | onPressed: onRefresh, |
| 412 | tooltip: l10n.refresh_models, |
| 413 | ), |
| 414 | ], |
| 415 | ), |
| 416 | ], |
| 417 | ); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | void _showContextLengthDialog( |
| 422 | BuildContext context, |
| 423 | WidgetRef ref, |
| 424 | int currentLength, |
| 425 | String? activeConversationId, |
| 426 | ) { |
| 427 | showDialog( |
| 428 | context: context, |
| 429 | builder: (context) => _ContextLengthEditDialog( |
| 430 | initialValue: currentLength, |
| 431 | activeConversationId: activeConversationId, |
| 432 | ), |
| 433 | ); |
| 434 | } |
| 435 | |
| 436 | class _ContextLengthEditDialog extends ConsumerStatefulWidget { |
| 437 | const _ContextLengthEditDialog({ |
| 438 | required this.initialValue, |
| 439 | required this.activeConversationId, |
| 440 | }); |
| 441 | |
| 442 | final int initialValue; |
| 443 | final String? activeConversationId; |
| 444 | |
| 445 | @override |
| 446 | ConsumerState<_ContextLengthEditDialog> createState() => |
| 447 | __ContextLengthEditDialogState(); |
| 448 | } |
| 449 | |
| 450 | class __ContextLengthEditDialogState |
| 451 | extends ConsumerState<_ContextLengthEditDialog> { |
| 452 | late final TextEditingController _controller; |
| 453 | late final FocusNode _focusNode; |
| 454 | |
| 455 | @override |
| 456 | void initState() { |
| 457 | super.initState(); |
| 458 | _controller = TextEditingController(text: widget.initialValue.toString()); |
| 459 | _focusNode = FocusNode(); |
| 460 | } |
| 461 | |
| 462 | @override |
| 463 | void dispose() { |
| 464 | _controller.dispose(); |
| 465 | _focusNode.dispose(); |
| 466 | super.dispose(); |
| 467 | } |
| 468 | |
| 469 | void _save(String value) { |
| 470 | final parsed = int.tryParse(value.trim()); |
| 471 | if (parsed != null && parsed > 0) { |
| 472 | if (widget.activeConversationId == null) { |
| 473 | ref.read(settingsProvider.notifier).setContextLength(parsed); |
| 474 | } else { |
| 475 | ref |
| 476 | .read(conv.conversationsProvider.notifier) |
| 477 | .updateChatParams( |
| 478 | widget.activeConversationId!, |
| 479 | contextLength: parsed, |
| 480 | ); |
| 481 | } |
| 482 | } |
| 483 | Navigator.of(context).pop(); |
| 484 | } |
| 485 | |
| 486 | @override |
| 487 | Widget build(BuildContext context) { |
| 488 | final theme = Theme.of(context); |
| 489 | final isDark = theme.brightness == Brightness.dark; |
| 490 | final l10n = AppLocalizations.of(context)!; |
| 491 | |
| 492 | final suggestions = [2048, 4096, 8192, 16384, 32768, 65536, 131072]; |
| 493 | |
| 494 | return Dialog( |
| 495 | backgroundColor: isDark |
| 496 | ? AppColors.darkBackground |
| 497 | : AppColors.lightSurface, |
| 498 | shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)), |
| 499 | child: SingleChildScrollView( |
| 500 | child: Padding( |
| 501 | padding: const EdgeInsets.all(20), |
| 502 | child: Column( |
| 503 | mainAxisSize: MainAxisSize.min, |
| 504 | crossAxisAlignment: CrossAxisAlignment.stretch, |
| 505 | children: [ |
| 506 | Text( |
| 507 | l10n.context_length, |
| 508 | style: TextStyle( |
| 509 | fontSize: 16, |
| 510 | fontWeight: FontWeight.bold, |
| 511 | color: isDark ? Colors.white : Colors.black, |
| 512 | ), |
| 513 | ), |
| 514 | const SizedBox(height: 16), |
| 515 | TextField( |
| 516 | controller: _controller, |
| 517 | focusNode: _focusNode, |
| 518 | autofocus: true, |
| 519 | keyboardType: TextInputType.number, |
| 520 | decoration: InputDecoration( |
| 521 | labelText: l10n.tokens_label, |
| 522 | hintText: l10n.enter_context_length, |
| 523 | border: OutlineInputBorder( |
| 524 | borderRadius: BorderRadius.circular(10), |
| 525 | ), |
| 526 | suffixIcon: IconButton( |
| 527 | icon: const HugeIcon( |
| 528 | icon: HugeIcons.strokeRoundedCancel01, |
| 529 | size: 18, |
| 530 | ), |
| 531 | onPressed: () => _controller.clear(), |
| 532 | ), |
| 533 | ), |
| 534 | onSubmitted: _save, |
| 535 | ), |
| 536 | const SizedBox(height: 12), |
| 537 | SingleChildScrollView( |
| 538 | scrollDirection: Axis.horizontal, |
| 539 | child: Row( |
| 540 | children: suggestions.map((val) { |
| 541 | final label = val >= 1024 ? '${val ~/ 1024}K' : '$val'; |
| 542 | return Padding( |
| 543 | padding: const EdgeInsets.only(right: 8), |
| 544 | child: ActionChip( |
| 545 | label: Text(label), |
| 546 | labelStyle: TextStyle( |
| 547 | fontSize: 12, |
| 548 | fontWeight: FontWeight.w500, |
| 549 | color: isDark ? Colors.white70 : Colors.black87, |
| 550 | ), |
| 551 | backgroundColor: isDark |
| 552 | ? Colors.grey[850] |
| 553 | : Colors.grey[200], |
| 554 | shape: RoundedRectangleBorder( |
| 555 | borderRadius: BorderRadius.circular(8), |
| 556 | side: BorderSide.none, |
| 557 | ), |
| 558 | onPressed: () { |
| 559 | _controller.text = val.toString(); |
| 560 | _controller.selection = TextSelection.fromPosition( |
| 561 | TextPosition(offset: _controller.text.length), |
| 562 | ); |
| 563 | }, |
| 564 | ), |
| 565 | ); |
| 566 | }).toList(), |
| 567 | ), |
| 568 | ), |
| 569 | const SizedBox(height: 16), |
| 570 | Row( |
| 571 | mainAxisAlignment: MainAxisAlignment.end, |
| 572 | children: [ |
| 573 | TextButton( |
| 574 | onPressed: () => Navigator.of(context).pop(), |
| 575 | child: Text(l10n.cancel), |
| 576 | ), |
| 577 | const SizedBox(width: 8), |
| 578 | FilledButton( |
| 579 | onPressed: () => _save(_controller.text), |
| 580 | style: FilledButton.styleFrom( |
| 581 | shape: RoundedRectangleBorder( |
| 582 | borderRadius: BorderRadius.circular(8), |
| 583 | ), |
| 584 | ), |
| 585 | child: Text(l10n.save), |
| 586 | ), |
| 587 | ], |
| 588 | ), |
| 589 | ], |
| 590 | ), |
| 591 | ), |
| 592 | ), |
| 593 | ); |
| 594 | } |
| 595 | } |