stuff

PROGRESS.md

@@ -37,11 +37,15 @@
   - Ensured voices list still loads while the form is disabled during save
   - Added unit tests for the upsert+voice flow (`mnemo_cards_admin`)
 - **Admin Packs: Color Palette Picker**: Added palette-based color selection for packs
-  - Replaced free-text color input with swatches + native color picker
+  - Replaced free-text color input with native color picker (palette)
+  - Removed hardcoded default swatch colors (keep only palette)
   - Added unit tests for the new color picker component (`mnemo_cards_admin`)
 - **Admin Tests: Pack Linking**: Added ability to link tests to packs in admin
   - Test editor now supports selecting packs and syncing links on Save
   - Added unit test coverage for the new pack-linking component (`mnemo_cards_admin`)
+- **Admin Tests: Color Picker + Pack Color Sync**: Added palette-based test color selection
+  - Test editor now uses the same palette picker as packs
+  - When selecting/changing a pack in test editor, test color auto-updates to the pack color
 
 - **Service Reliability**: Enhanced service management and monitoring
   - Port conflict detection and resolution
@@ -79,6 +83,7 @@
   - Card UI: moved voice play icon into a `Stack` overlay so it doesn't take an extra row on the card (with widget test coverage)
   - CardViewer UI: navigation arrows are now constrained under the card on wide screens; favorites (heart) button is positioned closer to the card
     - Added widget test coverage for wide-screen navigation button positioning
+  - Pack details: "Перемешать" button no longer has an active (pressed) state (widget test updated)
   - Added app version display on authentication page
   - **UI Components Refactoring**: Extracted authentication components
     - Created `SignInWithGoogleButton` component for Google authentication
@@ -98,6 +103,7 @@
   - Added SafeArea wrapping and themed question cards on `game_page.dart`
   - Added widget tests for themed question cards, exit control, and interactive-only notice
   - Timer/progress now sourced from live session state on `game_page.dart`
+  - Fixed broken game navigation: `TestPage` now pushes `/game/:id` so Exit/Finish/Back work (incl. deep-link fallback) + widget tests
 - **Game Tests Package**: Started shared package `games/packages/game_tests`
   - Added configurable `GameTestSettings` (sounds/haptics/delay)
   - Integrated into `mnemo_cards_web_v2` via `TestsModule`/`TestsStateManager`
@@ -132,6 +138,11 @@
     - Admin voice uploads are persisted to `data/voice/` and DB stores only a file name (no base64)
     - Public voice list heals legacy base64-in-DB by migrating to file on first read
     - `/api/v2/voice/<voiceId>` serves bytes (or redirects for remote URLs)
+  - **Admin Tests: Stop Returning base64 Images**: `/api/v2/admin/tests/<id>` now returns image **links**, never base64
+    - Self-heals legacy base64/data-url values on read by persisting them into `data/cards/` and storing only a `cardId` in DB
+    - Normalizes admin round-trip values (`/api/.../cards/<id>/image` → `<cardId>`) so editing tests doesn't pollute DB with API URLs
+    - When linking a test to a pack, automatically links all referenced image cards to that pack so `/api/v2/packs/<packId>/cards/<cardId>/image` works
+    - Added focused backend unit test: `mnemo_cards_backend/test/api/v2/admin_tests_api_v2_image_urls_test.dart`
   - **User Telegram Field**: Added telegram field to user model
     - Added `telegram` field to `UserModel` and `UserDto` alongside `email`
     - Added `telegram` column to `users` table in database (migration v2→v3)

TODO.md

@@ -53,6 +53,7 @@
   - Common libraries: Target 90% coverage
   - ✅ Added unit test for version display on auth page
   - ✅ Web: CardViewer navigation controls are constrained under the card on wide screens (widget test added)
+  - ✅ Web: Pack details "Перемешать" button has no active (pressed) state (widget test updated)
   - ✅ **User Telegram Field Tests**: Added comprehensive unit tests for telegram field
     - Created `test/models/user_model_telegram_test.dart` with 6 test cases
     - Created `test/user_dto_telegram_test.dart` with 7 test cases
@@ -60,6 +61,7 @@
   - ✅ Refactored authentication components - need to add unit tests for SignInWithGoogleButton and SignInWithTelegram
   - ✅ Added comprehensive unit tests for ThemeToggleWidget (7 test cases covering all functionality)
   - ✅ Game/Test flow cleanup: removed traditional test entry, themed game page, added widget coverage for question card surfaces, exit control, and interactive-only notice; timer/progress pulled from live session state
+  - ✅ Web: fixed game navigation actions (Exit/Finish/Back) by using push to `/game/:id` and adding deep-link fallback + widget tests
   - ✅ Game Tests package: created `games/packages/game_tests`, added `GameTestSettings`, integrated into `mnemo_cards_web_v2` settings and state manager
   - ✅ **Test Page Code Quality Fix**: Fixed critical code duplication in `test_page.dart`
     - Removed 700+ lines of duplicate code
@@ -110,6 +112,7 @@
   - Response time optimization
   - [x] **Card Images Storage**: Stop storing base64 in DB; always store path/file name and serve via image endpoints (фикс 500 на картинках)
   - [x] **Card Voices Storage**: Stop storing base64 in DB; store voice file name and serve via `/api/v2/voice/<id>` (voices list returns direct `url`)
+  - [x] **Tests Images (Admin API)**: Stop returning base64 in `/api/v2/admin/tests/<id>`; always return image links and heal legacy base64 on read
   - [x] **Generated Tests Cleanup**: Fix orphan generated tests and add TTL purge (cron/DB cleanup)
 
 ### Features
@@ -123,10 +126,14 @@
   - Added voice uploader to card editor (upload on Save)
   - Added unit tests for upsert+voice flow
 - [x] **Admin Packs: Color Palette Picker**: Add palette-based pack color selection
-  - Replace free-text hex input with swatches + native picker
+  - Replace free-text hex input with native picker (palette)
+  - Remove hardcoded default swatch colors (keep only palette)
   - Add unit tests for the picker component
 - [x] **Admin Tests: Link to Packs**: Add pack selection in test editor and sync test↔pack links on Save
   - Add unit test coverage for pack-linking UI
+- [x] **Admin Tests: Color Picker + Pack Color Sync**: Use palette picker for test color and sync from selected pack
+  - Replace free-text test color input with `ColorPaletteInput`
+  - Auto-update test color when selecting/changing a pack in test editor
 - [x] **Matrix Test (image selection)**: Add matrix question type end-to-end (backend + web + admin)
   - Auto-generate matrix images from pack card pool (generator framework)
   - Web: multi-stage single question (shake on wrong, flip+reveal translation on correct, then disappear)

mnemo_cards_admin/src/components/TestPacksManager.tsx

@@ -19,12 +19,14 @@ import { Search, Check } from 'lucide-react'
 interface TestPacksManagerProps {
   currentPackIds: string[]
   onPacksChange: (addIds: string[], removeIds: string[]) => void
+  onSelectedPackColorChange?: (color: string) => void
   disabled?: boolean
 }
 
 export function TestPacksManager({
   currentPackIds,
   onPacksChange,
+  onSelectedPackColorChange,
   disabled = false,
 }: TestPacksManagerProps) {
   // Reset internal state when switching tests / pack list.
@@ -35,6 +37,7 @@ export function TestPacksManager({
       key={stateKey}
       currentPackIds={currentPackIds}
       onPacksChange={onPacksChange}
+      onSelectedPackColorChange={onSelectedPackColorChange}
       disabled={disabled}
     />
   )
@@ -43,6 +46,7 @@ export function TestPacksManager({
 function TestPacksManagerInner({
   currentPackIds,
   onPacksChange,
+  onSelectedPackColorChange,
   disabled = false,
 }: TestPacksManagerProps) {
   const [search, setSearch] = useState('')
@@ -72,6 +76,11 @@ function TestPacksManagerInner({
     enabled: !disabled,
   })
 
+  const allPacks: CardPackPreviewDto[] = packsData?.items || []
+  const packsById = useMemo(() => {
+    return new Map(allPacks.map((pack) => [String(pack.id), pack]))
+  }, [allPacks])
+
   useEffect(() => {
     const toAdd = selectedList.filter(
       (id) => !currentPackIds.includes(id) && !removedList.includes(id),
@@ -93,28 +102,35 @@ function TestPacksManagerInner({
     selectedPacks.size,
   ])
 
-  const handleTogglePack = (packId: string) => {
-    if (disabled || !packId) return
+  const handleTogglePack = (pack: CardPackPreviewDto) => {
+    if (disabled || !pack?.id) return
 
-    const packIdStr = String(packId)
+    const packIdStr = String(pack.id)
     const isCurrentlySelected =
       selectedPacks.has(packIdStr) && !removedPacks.has(packIdStr)
     const isInCurrentTest = currentPackIds.includes(packIdStr)
 
     if (isCurrentlySelected) {
-      const newSelected = new Set(selectedPacks)
-      newSelected.delete(packIdStr)
-      setSelectedPacks(newSelected)
+      const nextSelected = new Set(selectedPacks)
+      nextSelected.delete(packIdStr)
+      setSelectedPacks(nextSelected)
 
       if (isInCurrentTest) {
         setRemovedPacks((prev) => new Set([...prev, packIdStr]))
       }
+
+      if (onSelectedPackColorChange) {
+        const fallbackId = Array.from(nextSelected)[0]
+        const fallback = fallbackId ? packsById.get(fallbackId) : undefined
+        if (fallback?.color) onSelectedPackColorChange(fallback.color)
+      }
+
       return
     }
 
-    const newSelected = new Set(selectedPacks)
-    newSelected.add(packIdStr)
-    setSelectedPacks(newSelected)
+    const nextSelected = new Set(selectedPacks)
+    nextSelected.add(packIdStr)
+    setSelectedPacks(nextSelected)
 
     if (removedPacks.has(packIdStr)) {
       setRemovedPacks((prev) => {
@@ -123,6 +139,10 @@ function TestPacksManagerInner({
         return next
       })
     }
+
+    if (onSelectedPackColorChange) {
+      onSelectedPackColorChange(pack.color ?? '')
+    }
   }
 
   const isPackSelected = (packId: string | number) => {
@@ -134,7 +154,6 @@ function TestPacksManagerInner({
     return currentPackIds.includes(String(packId))
   }
 
-  const allPacks: CardPackPreviewDto[] = packsData?.items || []
   const filteredPacks = search
     ? allPacks.filter(
         (pack) =>
@@ -197,7 +216,7 @@ function TestPacksManagerInner({
                     <TableRow
                       key={pack.id}
                       className={selected ? 'bg-muted/50' : ''}
-                      onClick={() => handleTogglePack(packIdStr)}
+                      onClick={() => handleTogglePack(pack)}
                     >
                       <TableCell>
                         {selected ? (

mnemo_cards_admin/src/components/ui/color-palette-input.test.tsx

@@ -19,19 +19,19 @@ describe('ColorPaletteInput', () => {
     expect(screen.getByLabelText('Color')).toHaveValue('#FF0000')
   })
 
-  it('calls onChange when a swatch is clicked', () => {
+  it('calls onChange when text input changes', () => {
     const onChange = vi.fn()
 
     render(
-      <ColorPaletteInput
-        id="color"
-        value=""
-        onChange={onChange}
-        palette={['#123456', '#ABCDEF']}
-      />,
+      <>
+        <label htmlFor="color">Color</label>
+        <ColorPaletteInput id="color" value="" onChange={onChange} />
+      </>,
     )
 
-    fireEvent.click(screen.getByRole('button', { name: 'Set color #ABCDEF' }))
+    fireEvent.change(screen.getByLabelText('Color'), {
+      target: { value: '#ABCDEF' },
+    })
 
     expect(onChange).toHaveBeenCalledWith('#ABCDEF')
   })

mnemo_cards_admin/src/components/ui/color-palette-input.tsx

@@ -2,22 +2,6 @@ import { cn } from '@/lib/utils'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 
-const DEFAULT_COLOR_PALETTE = [
-  '#EF4444', // red-500
-  '#F97316', // orange-500
-  '#F59E0B', // amber-500
-  '#EAB308', // yellow-500
-  '#22C55E', // green-500
-  '#10B981', // emerald-500
-  '#14B8A6', // teal-500
-  '#06B6D4', // cyan-500
-  '#3B82F6', // blue-500
-  '#6366F1', // indigo-500
-  '#A855F7', // purple-500
-  '#EC4899', // pink-500
-  '#6B7280', // gray-500
-] as const
-
 const isHexColor = (value: string): boolean => {
   const trimmed = value.trim()
   return /^#(?:[0-9a-fA-F]{3}){1,2}$/.test(trimmed)
@@ -28,7 +12,6 @@ export type ColorPaletteInputProps = {
   value: string
   onChange: (value: string) => void
   disabled?: boolean
-  palette?: readonly string[]
   placeholder?: string
 }
 
@@ -37,7 +20,6 @@ export const ColorPaletteInput = ({
   value,
   onChange,
   disabled = false,
-  palette = DEFAULT_COLOR_PALETTE,
   placeholder = '#FF0000',
 }: ColorPaletteInputProps) => {
   const trimmed = value.trim()
@@ -84,27 +66,6 @@ export const ColorPaletteInput = ({
       </div>
 
       <div className="flex flex-wrap items-center gap-2">
-        {palette.map((color) => {
-          const isSelected = trimmed.toLowerCase() === color.toLowerCase()
-
-          return (
-            <button
-              key={color}
-              type="button"
-              aria-label={`Set color ${color}`}
-              disabled={disabled}
-              onClick={() => onChange(color)}
-              className={cn(
-                'h-8 w-8 rounded-md border border-input transition-shadow',
-                'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2',
-                disabled && 'cursor-not-allowed opacity-50',
-                isSelected && 'ring-2 ring-ring ring-offset-2',
-              )}
-              style={{ backgroundColor: color }}
-            />
-          )
-        })}
-
         <Button
           type="button"
           variant="outline"

mnemo_cards_admin/src/pages/TestsPage.tsx

@@ -10,6 +10,7 @@ import { questionFromJson, questionToJson } from '@/types/questions'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
+import { ColorPaletteInput } from '@/components/ui/color-palette-input'
 import {
   Table,
   TableBody,
@@ -481,10 +482,13 @@ export default function TestsPage() {
               <div className="grid grid-cols-2 gap-4">
                 <div className="space-y-2">
                   <Label htmlFor="color">Color</Label>
-                  <Input
+                  <ColorPaletteInput
                     id="color"
                     value={formData.color}
-                    onChange={(e) => setFormData(prev => ({ ...prev, color: e.target.value }))}
+                    onChange={(value) =>
+                      setFormData((prev) => ({ ...prev, color: value }))
+                    }
+                    disabled={isSaving}
                     placeholder="#FF0000"
                   />
                 </div>
@@ -533,6 +537,11 @@ export default function TestsPage() {
                 <TestPacksManager
                   currentPackIds={currentPackIds}
                   onPacksChange={handlePacksChange}
+                  onSelectedPackColorChange={(color) => {
+                    const trimmed = color.trim()
+                    if (!trimmed) return
+                    setFormData((prev) => ({ ...prev, color: trimmed }))
+                  }}
                   disabled={isSaving}
                 />
                 <p className="text-xs text-muted-foreground">

mnemo_cards_backend/lib/api/v2/admin_packs_api_v2.dart

@@ -8,6 +8,7 @@ import 'package:mnemo_cards_backend/api/authorize/acl_types.dart';
 import 'package:mnemo_cards_backend/api/authorize/access_service.dart';
 import 'package:mnemo_cards_backend/api/authorize/helpers.dart';
 import 'package:mnemo_cards_backend/packs/card_pack_drift_extension.dart';
+import 'package:mnemo_cards_backend/packs/card_image_storage.dart';
 import 'package:mnemo_cards_common/mnemo_cards_common.dart';
 import 'package:shelf/shelf.dart';
 import 'package:shelf_router/shelf_router.dart';
@@ -21,6 +22,202 @@ class AdminPacksApiV2 {
 
   AdminPacksApiV2(this._db);
 
+  static final _uuidRegex = RegExp(
+    r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$',
+    caseSensitive: false,
+  );
+
+  bool _isUuid(String value) => _uuidRegex.hasMatch(value.trim());
+
+  bool _isBase64OrDataUrlImage(String value) =>
+      CardImageStorage.tryParseBase64Image(value) != null;
+
+  String? _extractCardIdFromApiImageUrl(String value) {
+    final v = value.trim();
+    if (!CardImageStorage.isApiImageUrl(v)) return null;
+    final match =
+        RegExp(r'/cards/([^/]+)/image(?:Back)?$').firstMatch(v)?.group(1);
+    if (match == null) return null;
+    return _isUuid(match) ? match : null;
+  }
+
+  Future<void> _tryLinkCardToPack({
+    required String packId,
+    required String cardId,
+  }) async {
+    try {
+      final card = await _db.packDao.getCardById(cardId);
+      if (card == null) return;
+      await _db.packDao.addCardToPack(packId: packId, cardId: cardId);
+    } catch (_) {
+      // Best-effort only.
+    }
+  }
+
+  Future<String?> _convertBase64ToCard(String base64Image, String packId) async {
+    try {
+      final companion = GameCardsCompanion.insert(
+        original: 'test_image',
+        translation: 'test_image',
+        image: '',
+        mnemo: const drift.Value('test_image'),
+      );
+
+      final cardId = await _db.packDao.createCard(companion);
+      await _tryLinkCardToPack(packId: packId, cardId: cardId);
+
+      final stored = await CardImageStorage.persistFromBase64(
+        cardId: cardId,
+        imageValue: base64Image,
+        preferredFileName: null,
+        isBack: false,
+      );
+      if (stored == null) return null;
+
+      final created = await _db.packDao.getCardById(cardId);
+      if (created == null) return null;
+
+      await _db.packDao.updateCard(
+        created.copyWith(
+          image: stored.fileName,
+          updatedAt: PgDateTime(DateTime.now()),
+        ),
+      );
+
+      return cardId;
+    } catch (_) {
+      return null;
+    }
+  }
+
+  Future<String?> _normalizeImageValueForDb(
+    String? value, {
+    required String packId,
+  }) async {
+    if (value == null) return null;
+    final v = value.trim();
+    if (v.isEmpty) return null;
+
+    if (CardImageStorage.isRemoteUrl(v)) return v;
+
+    final fromApi = _extractCardIdFromApiImageUrl(v);
+    if (fromApi != null) {
+      await _tryLinkCardToPack(packId: packId, cardId: fromApi);
+      return fromApi;
+    }
+
+    if (_isUuid(v)) {
+      await _tryLinkCardToPack(packId: packId, cardId: v);
+      return v;
+    }
+
+    if (_isBase64OrDataUrlImage(v)) {
+      return _convertBase64ToCard(v, packId);
+    }
+
+    return v;
+  }
+
+  Future<void> _ensureTestImagesLinkedToPack({
+    required String testId,
+    required String packId,
+  }) async {
+    // Ensure test cover is normalized and linked (if cover is an image ref).
+    final test = await _db.testDao.getTestById(testId);
+    if (test != null && test.cover != null && test.cover!.trim().isNotEmpty) {
+      final normalizedCover =
+          await _normalizeImageValueForDb(test.cover, packId: packId);
+      if ((test.cover ?? '').trim() != (normalizedCover ?? '').trim()) {
+        await _db.testDao.updateTest(
+          test.copyWith(
+            cover: drift.Value(normalizedCover),
+            updatedAt: PgDateTime(DateTime.now()),
+          ),
+        );
+      } else if (normalizedCover != null && _isUuid(normalizedCover)) {
+        await _tryLinkCardToPack(packId: packId, cardId: normalizedCover);
+      }
+    }
+
+    // Ensure all question/button images are normalized and cards linked to pack.
+    final questions = await _db.testDao.getTestQuestions(testId);
+    for (final q in questions) {
+      // Parse options/buttons
+      List<dynamic> buttons;
+      try {
+        final decoded = json.decode(q.options);
+        buttons = decoded is List ? decoded : <dynamic>[];
+      } catch (_) {
+        buttons = <dynamic>[];
+      }
+
+      // Parse uiData
+      Map<String, dynamic> uiData;
+      try {
+        final decoded = json.decode(q.uiData);
+        uiData =
+            decoded is Map<String, dynamic> ? decoded : <String, dynamic>{};
+      } catch (_) {
+        uiData = <String, dynamic>{};
+      }
+
+      var mutated = false;
+
+      if (uiData['image'] != null) {
+        final raw = uiData['image']?.toString();
+        final normalized = await _normalizeImageValueForDb(
+          raw,
+          packId: packId,
+        );
+        if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+          mutated = true;
+        }
+        if (normalized == null) {
+          uiData.remove('image');
+        } else {
+          uiData['image'] = normalized;
+        }
+      }
+
+      final normalizedButtons = <dynamic>[];
+      for (final b in buttons) {
+        if (b is Map) {
+          final buttonMap = Map<String, dynamic>.from(
+            b.map((k, v) => MapEntry(k.toString(), v)),
+          );
+          if (buttonMap['image'] != null) {
+            final raw = buttonMap['image']?.toString();
+            final normalized = await _normalizeImageValueForDb(
+              raw,
+              packId: packId,
+            );
+            if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+              mutated = true;
+            }
+            if (normalized == null) {
+              buttonMap.remove('image');
+            } else {
+              buttonMap['image'] = normalized;
+            }
+          }
+          normalizedButtons.add(buttonMap);
+        } else {
+          normalizedButtons.add(b);
+        }
+      }
+
+      if (mutated) {
+        await _db.testDao.updateTestQuestion(
+          q.copyWith(
+            options: jsonEncode(normalizedButtons),
+            uiData: jsonEncode(uiData),
+            updatedAt: PgDateTime(DateTime.now()),
+          ),
+        );
+      }
+    }
+  }
+
   Response _json(
     Object? data, {
     int statusCode = 200,
@@ -372,6 +569,10 @@ class AdminPacksApiV2 {
               );
             }
             await _db.testDao.linkTestToPack(testId, packId);
+            // Important: tests may reference cardIds (or even base64) in
+            // question/button images. Ensure those cards are linked to this pack
+            // so `/api/v2/packs/<packId>/cards/<cardId>/image` works.
+            await _ensureTestImagesLinkedToPack(testId: testId, packId: packId);
           }
         } catch (e) {
           // Handle duplicate or constraint errors

mnemo_cards_backend/lib/api/v2/admin_tests_api_v2.dart

@@ -8,7 +8,6 @@ import 'package:drift/drift.dart' as drift;
 import 'package:drift_postgres/drift_postgres.dart';
 import 'package:mnemo_cards_backend/database/database.dart';
 import 'package:mnemo_cards_backend/packs/card_image_storage.dart';
-import 'package:mnemo_cards_common/mnemo_cards_common.dart';
 import 'package:shelf/shelf.dart';
 import 'package:shelf_router/shelf_router.dart';
 
@@ -21,14 +20,23 @@ class AdminTestsApiV2 {
 
   AdminTestsApiV2(this._db);
 
-  // Helper function to check if string is base64 encoded
-  bool _isBase64(String value) {
-    if (value.isEmpty) return false;
-    // Base64 strings are typically long and contain only base64 characters
-    // Check length (base64 images are usually > 100 chars) and character set
-    if (value.length < 50) return false;
-    final base64Regex = RegExp(r'^[A-Za-z0-9+/]*={0,2}$');
-    return base64Regex.hasMatch(value) && value.length > 100;
+  static final _uuidRegex = RegExp(
+    r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$',
+    caseSensitive: false,
+  );
+
+  bool _isUuid(String value) => _uuidRegex.hasMatch(value.trim());
+
+  bool _isBase64OrDataUrlImage(String value) =>
+      CardImageStorage.tryParseBase64Image(value) != null;
+
+  String? _extractCardIdFromApiImageUrl(String value) {
+    final v = value.trim();
+    if (!CardImageStorage.isApiImageUrl(v)) return null;
+    final match =
+        RegExp(r'/cards/([^/]+)/image(?:Back)?$').firstMatch(v)?.group(1);
+    if (match == null) return null;
+    return _isUuid(match) ? match : null;
   }
 
   // Helper function to convert base64 image to card and return card ID
@@ -78,6 +86,86 @@ class AdminTestsApiV2 {
     }
   }
 
+  Future<void> _ensureCardLinkedToPack({
+    required String cardId,
+    required String packId,
+  }) async {
+    try {
+      final card = await _db.packDao.getCardById(cardId);
+      if (card == null) return;
+      await _db.packDao.addCardToPack(packId: packId, cardId: cardId);
+    } catch (_) {
+      // Best-effort: linking is not critical for response serialization.
+    }
+  }
+
+  /// Normalizes an incoming image value to a stable DB reference:
+  /// - `null` / empty -> `null`
+  /// - remote URL -> remote URL
+  /// - `/api/v2/packs/.../cards/<cardId>/image` -> `<cardId>`
+  /// - base64 / data URL -> create card (and link to pack if provided) -> `<cardId>`
+  /// - UUID -> UUID
+  /// - other -> returned as-is (legacy)
+  Future<String?> _normalizeImageValueForDb(
+    String? value, {
+    required String? packId,
+  }) async {
+    if (value == null) return null;
+    final v = value.trim();
+    if (v.isEmpty) return null;
+
+    if (CardImageStorage.isRemoteUrl(v)) return v;
+
+    final fromApi = _extractCardIdFromApiImageUrl(v);
+    if (fromApi != null) {
+      if (packId != null) {
+        await _ensureCardLinkedToPack(cardId: fromApi, packId: packId);
+      }
+      return fromApi;
+    }
+
+    if (_isUuid(v)) {
+      if (packId != null) {
+        await _ensureCardLinkedToPack(cardId: v, packId: packId);
+      }
+      return v;
+    }
+
+    if (_isBase64OrDataUrlImage(v)) {
+      final cardId = await _convertBase64ToCard(v, packId);
+      if (cardId != null && packId != null) {
+        await _ensureCardLinkedToPack(cardId: cardId, packId: packId);
+      }
+      return cardId;
+    }
+
+    return v;
+  }
+
+  String? _imageValueToApiUrl(
+    String? value, {
+    required String? packId,
+  }) {
+    if (value == null) return null;
+    final v = value.trim();
+    if (v.isEmpty) return null;
+
+    if (CardImageStorage.isRemoteUrl(v) || CardImageStorage.isApiImageUrl(v)) {
+      return v;
+    }
+
+    final cardId = _isUuid(v) ? v : _extractCardIdFromApiImageUrl(v);
+    if (cardId != null && packId != null) {
+      return '/api/v2/packs/$packId/cards/$cardId/image';
+    }
+
+    // If we can't build a URL (no packId), don't leak base64: return null.
+    if (_isBase64OrDataUrlImage(v)) return null;
+
+    // Legacy: unknown, keep as-is.
+    return v;
+  }
+
   Response _json(
     Object? data, {
     int statusCode = 200,
@@ -143,6 +231,21 @@ class AdminTestsApiV2 {
       for (final test in allTests) {
         final questions = await _db.testDao.getTestQuestions(test.id);
 
+        // Use first pack (if any) to build cover URL.
+        final packIdForCover = await _db.testDao.getPackIdForTest(test.id);
+        final normalizedCover = await _normalizeImageValueForDb(
+          test.cover,
+          packId: packIdForCover,
+        );
+        if ((test.cover ?? '').trim() != (normalizedCover ?? '')) {
+          await _db.testDao.updateTest(
+            test.copyWith(
+              cover: drift.Value(normalizedCover),
+              updatedAt: PgDateTime(DateTime.now()),
+            ),
+          );
+        }
+        
         // Get pack information for this test
         final packIds = await _db.testDao.getPackIdsForTest(test.id);
         final packs = <Map<String, dynamic>>[];
@@ -160,7 +263,7 @@ class AdminTestsApiV2 {
           'id': test.id,
           'name': test.name,
           'color': test.color,
-          'cover': test.cover,
+          'cover': _imageValueToApiUrl(normalizedCover, packId: packIdForCover),
           'version': test.version ?? '1.0',
           'time': test.time,
           'timeSubtitle': test.timeSubtitle,
@@ -257,115 +360,142 @@ class AdminTestsApiV2 {
 
       // Get questions
       final questions = await _db.testDao.getTestQuestions(testId);
-      final questionsList = questions.map((q) {
-        // Новая структура: собираем вопрос из отдельных полей
-        Map<String, dynamic> questionJson = {
-          'questionType': q.questionType,
-          'id': q.id,
-          'word': q.word,
-        };
+      final questionsWithUrls = <Map<String, dynamic>>[];
 
-        // Парсим options (JSON array кнопок)
+      for (final q in questions) {
+        // Parse options/buttons
+        List<dynamic> buttons;
         try {
-          final options = json.decode(q.options) as List<dynamic>;
-          questionJson['buttons'] = options;
-        } catch (e) {
-          questionJson['buttons'] = [];
+          final decoded = json.decode(q.options);
+          buttons = decoded is List ? decoded : <dynamic>[];
+        } catch (_) {
+          buttons = <dynamic>[];
         }
 
-        // Добавляем answer
-        questionJson['answer'] = q.answer;
-        
-        // Парсим uiData (image, text, audio, template)
+        // Parse uiData
+        Map<String, dynamic> uiData;
         try {
-          final uiData = json.decode(q.uiData) as Map<String, dynamic>;
-          questionJson.addAll(uiData);
-        } catch (e) {
-          // Если uiData пустой или невалидный, игнорируем
+          final decoded = json.decode(q.uiData);
+          uiData = decoded is Map<String, dynamic>
+              ? decoded
+              : <String, dynamic>{};
+        } catch (_) {
+          uiData = <String, dynamic>{};
         }
 
-        return AbstractTestQuestion.fromJson(questionJson);
-      }).toList();
+        var mutated = false;
 
-      // Helper function to convert image ID to URL
-      String? _convertImageToUrl(String? imageValue, String? packId) {
-        if (imageValue == null) return imageValue;
-        
-        // If it's already a proper URL, return as is
-        if (imageValue.startsWith('http://') || 
-            imageValue.startsWith('https://') ||
-            (imageValue.startsWith('/api/') && imageValue.contains('/cards/') && imageValue.endsWith('/image'))) {
-          return imageValue;
-        }
-        
-        // If packId is null, we can't convert to URL, return as is
-        if (packId == null) return imageValue;
-        
-        // Check if it's base64 encoded image
-        if (_isBase64(imageValue)) {
-          // Base64 images should be converted to card IDs before saving
-          // If we see base64 here, it means it wasn't converted during save
-          // For now, return as is (will be handled during save)
-          return imageValue;
-        }
-        
-        // If it's base64 data URL, extract card ID if possible
-        // Format: /api/v2/packs/{packId}/cards/{base64}/image or just base64
-        if (imageValue.contains('/cards/')) {
-          // Extract card ID from path like /api/v2/packs/{packId}/cards/{cardId}/image
-          final parts = imageValue.split('/cards/');
-          if (parts.length == 2) {
-            final cardIdPart = parts[1].split('/')[0];
-            // If it's a valid UUID format, use it; otherwise it might be base64
-            if (RegExp(r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', caseSensitive: false).hasMatch(cardIdPart)) {
-              return '/api/v2/packs/$packId/cards/$cardIdPart/image';
-            }
+        // Normalize question image in uiData
+        if (uiData['image'] != null) {
+          final raw = uiData['image']?.toString();
+          final normalized =
+              await _normalizeImageValueForDb(raw, packId: packId);
+          if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+            mutated = true;
+          }
+          if (normalized == null) {
+            uiData.remove('image');
+          } else {
+            uiData['image'] = normalized;
           }
         }
 
-        // If it looks like a UUID (card ID), convert to URL
-        if (RegExp(r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', caseSensitive: false).hasMatch(imageValue)) {
-          return '/api/v2/packs/$packId/cards/$imageValue/image';
+        // Normalize button images
+        final normalizedButtons = <dynamic>[];
+        for (final b in buttons) {
+          if (b is Map) {
+            final buttonMap = Map<String, dynamic>.from(
+              b.map((k, v) => MapEntry(k.toString(), v)),
+            );
+            if (buttonMap['image'] != null) {
+              final raw = buttonMap['image']?.toString();
+              final normalized =
+                  await _normalizeImageValueForDb(raw, packId: packId);
+              if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+                mutated = true;
+              }
+              if (normalized == null) {
+                buttonMap.remove('image');
+              } else {
+                buttonMap['image'] = normalized;
+              }
+            }
+            normalizedButtons.add(buttonMap);
+          } else {
+            normalizedButtons.add(b);
+          }
         }
 
-        // Otherwise, assume it's already a card ID and convert
-        // This handles cases where the value is stored as card ID
-        return '/api/v2/packs/$packId/cards/$imageValue/image';
-      }
-
-      // Convert image IDs to URLs in questions
-      final questionsWithUrls = questionsList.map((q) {
-        final questionJson = q.toJson();
-        
-        // Convert image in question itself
-        if (questionJson['image'] != null) {
-          questionJson['image'] = _convertImageToUrl(
-            questionJson['image'] as String?,
-            packId,
+        if (mutated) {
+          await _db.testDao.updateTestQuestion(
+            q.copyWith(
+              options: jsonEncode(normalizedButtons),
+              uiData: jsonEncode(uiData),
+              updatedAt: PgDateTime(DateTime.now()),
+            ),
           );
         }
 
-        // Convert images in buttons
-        if (questionJson['buttons'] != null) {
-          final buttons = questionJson['buttons'] as List<dynamic>;
-          for (final button in buttons) {
-            if (button is Map<String, dynamic> && button['image'] != null) {
-              button['image'] = _convertImageToUrl(
-                button['image'] as String?,
-                packId,
+        // Build response question map (images as URLs)
+        final questionJson = <String, dynamic>{
+          'questionType': q.questionType,
+          'id': q.id,
+          'word': q.word,
+          'answer': q.answer,
+          'buttons': normalizedButtons.map((b) {
+            if (b is Map<String, dynamic> && b['image'] != null) {
+              final updated = Map<String, dynamic>.from(b);
+              updated['image'] = _imageValueToApiUrl(
+                updated['image']?.toString(),
+                packId: packId,
               );
+              return updated;
             }
-          }
-        }
+            if (b is Map) {
+              final updated = Map<String, dynamic>.from(
+                b.map((k, v) => MapEntry(k.toString(), v)),
+              );
+              if (updated['image'] != null) {
+                updated['image'] = _imageValueToApiUrl(
+                  updated['image']?.toString(),
+                  packId: packId,
+                );
+              }
+              return updated;
+            }
+            return b;
+          }).toList(),
+        };
 
-        return questionJson;
-      }).toList();
+        final uiDataForResponse = Map<String, dynamic>.from(uiData);
+        if (uiDataForResponse['image'] != null) {
+          uiDataForResponse['image'] = _imageValueToApiUrl(
+            uiDataForResponse['image']?.toString(),
+            packId: packId,
+          );
+        }
+        questionJson.addAll(uiDataForResponse);
+
+        questionsWithUrls.add(questionJson);
+      }
+
+      // Normalize and convert cover to URL too (never return base64).
+      final normalizedCover =
+          await _normalizeImageValueForDb(test.cover, packId: packId);
+      if ((test.cover ?? '').trim() != (normalizedCover ?? '').trim()) {
+        await _db.testDao.updateTest(
+          test.copyWith(
+            cover: drift.Value(normalizedCover),
+            updatedAt: PgDateTime(DateTime.now()),
+          ),
+        );
+      }
 
       return _json({
         'id': test.id,
         'name': test.name,
         'color': test.color,
-        'cover': test.cover,
+        'cover': _imageValueToApiUrl(normalizedCover, packId: packId),
         'version': test.version ?? '1.0',
         'time': test.time,
         'timeSubtitle': test.timeSubtitle,
@@ -447,10 +577,16 @@ class AdminTestsApiV2 {
         // Update test
         final testToUpdate = await _db.testDao.getTestById(testId);
         if (testToUpdate != null) {
+          final packIdForTest = await _db.testDao.getPackIdForTest(testId);
+          final normalizedCover =
+              await _normalizeImageValueForDb(cover, packId: packIdForTest);
+
           final updatedTest = testToUpdate.copyWith(
             name: name,
             color: color != null ? drift.Value(color) : const drift.Value.absent(),
-            cover: cover != null ? drift.Value(cover) : const drift.Value.absent(),
+            cover: normalizedCover != null
+                ? drift.Value(normalizedCover)
+                : const drift.Value.absent(),
             version: version != null ? drift.Value(version) : const drift.Value.absent(),
             time: time != null ? drift.Value(time) : const drift.Value.absent(),
             timeSubtitle: timeSubtitle != null ? drift.Value(timeSubtitle) : const drift.Value.absent(),
@@ -467,7 +603,7 @@ class AdminTestsApiV2 {
             await _db.testDao.softDeleteTestQuestion(q.id);
           }
           
-          // Get packId for the test to convert base64 images to cards
+          // Get packId for the test to normalize/convert images
           final packId = await _db.testDao.getPackIdForTest(testId);
           
           // Add new questions
@@ -481,21 +617,20 @@ class AdminTestsApiV2 {
             final answer = questionJson['answer'] as String? ?? '';
             var buttons = questionJson['buttons'] as List<dynamic>? ?? [];
             
-            // Convert base64 images in buttons to card IDs
+            // Normalize images in buttons to stable DB refs (cardId/remote URL).
             if (buttons.isNotEmpty) {
               final convertedButtons = <Map<String, dynamic>>[];
               for (final button in buttons) {
                 if (button is Map<String, dynamic>) {
                   final buttonMap = Map<String, dynamic>.from(button);
                   if (buttonMap['image'] != null) {
-                    final imageValue = buttonMap['image'] as String;
-                    // Check if it's base64
-                    if (_isBase64(imageValue)) {
-                      // Convert base64 to card
-                      final cardId = await _convertBase64ToCard(imageValue, packId);
-                      if (cardId != null) {
-                        buttonMap['image'] = cardId;
-                      }
+                    final raw = buttonMap['image']?.toString();
+                    final normalized =
+                        await _normalizeImageValueForDb(raw, packId: packId);
+                    if (normalized == null) {
+                      buttonMap.remove('image');
+                    } else {
+                      buttonMap['image'] = normalized;
                     }
                   }
                   convertedButtons.add(buttonMap);
@@ -509,17 +644,11 @@ class AdminTestsApiV2 {
             // UI данные (image, text, audio, template)
             final uiData = <String, dynamic>{};
             if (questionJson['image'] != null) {
-              final imageValue = questionJson['image'] as String;
-              // Convert base64 image to card if needed
-              if (_isBase64(imageValue)) {
-                final cardId = await _convertBase64ToCard(imageValue, packId);
-                if (cardId != null) {
-                  uiData['image'] = cardId;
-                } else {
-                  uiData['image'] = imageValue;
-                }
-              } else {
-                uiData['image'] = imageValue;
+              final raw = questionJson['image']?.toString();
+              final normalized =
+                  await _normalizeImageValueForDb(raw, packId: packId);
+              if (normalized != null) {
+                uiData['image'] = normalized;
               }
             }
             if (questionJson['text'] != null) uiData['text'] = questionJson['text'];
@@ -564,11 +693,17 @@ class AdminTestsApiV2 {
         });
       } else {
         // Create new test
+        final normalizedCover = await _normalizeImageValueForDb(
+          cover,
+          packId: null,
+        );
         final newTest = await _db.testDao.createTest(
           TestsCompanion.insert(
             name: name,
             color: color != null ? drift.Value(color) : const drift.Value.absent(),
-            cover: cover != null ? drift.Value(cover) : const drift.Value.absent(),
+            cover: normalizedCover != null
+                ? drift.Value(normalizedCover)
+                : const drift.Value.absent(),
             version: version != null ? drift.Value(version) : const drift.Value.absent(),
             time: time != null ? drift.Value(time) : const drift.Value.absent(),
             timeSubtitle: timeSubtitle != null ? drift.Value(timeSubtitle) : const drift.Value.absent(),
@@ -577,14 +712,10 @@ class AdminTestsApiV2 {
 
         // Add questions if provided
         if (questions != null) {
-          // Get packId if test is linked to a pack
-          String? packId;
-          try {
-            packId = await _db.testDao.getPackIdForTest(newTest);
-          } catch (e) {
-            // Test might not be linked to a pack yet
-            packId = null;
-          }
+          // Test can be linked to packs only after save (admin UI does it).
+          // We'll persist images as cards even without packId and later link
+          // those cards to packs when the test is linked.
+          final packId = await _db.testDao.getPackIdForTest(newTest);
           
           int orderIndex = 0;
           for (final q in questions) {
@@ -596,21 +727,20 @@ class AdminTestsApiV2 {
             final answer = questionJson['answer'] as String? ?? '';
             var buttons = questionJson['buttons'] as List<dynamic>? ?? [];
             
-            // Convert base64 images in buttons to card IDs
+            // Normalize images in buttons to stable DB refs (cardId/remote URL).
             if (buttons.isNotEmpty) {
               final convertedButtons = <Map<String, dynamic>>[];
               for (final button in buttons) {
                 if (button is Map<String, dynamic>) {
                   final buttonMap = Map<String, dynamic>.from(button);
                   if (buttonMap['image'] != null) {
-                    final imageValue = buttonMap['image'] as String;
-                    // Check if it's base64
-                    if (_isBase64(imageValue)) {
-                      // Convert base64 to card
-                      final cardId = await _convertBase64ToCard(imageValue, packId);
-                      if (cardId != null) {
-                        buttonMap['image'] = cardId;
-                      }
+                    final raw = buttonMap['image']?.toString();
+                    final normalized =
+                        await _normalizeImageValueForDb(raw, packId: packId);
+                    if (normalized == null) {
+                      buttonMap.remove('image');
+                    } else {
+                      buttonMap['image'] = normalized;
                     }
                   }
                   convertedButtons.add(buttonMap);
@@ -624,17 +754,11 @@ class AdminTestsApiV2 {
             // UI данные (image, text, audio, template)
             final uiData = <String, dynamic>{};
             if (questionJson['image'] != null) {
-              final imageValue = questionJson['image'] as String;
-              // Convert base64 image to card if needed
-              if (_isBase64(imageValue)) {
-                final cardId = await _convertBase64ToCard(imageValue, packId);
-                if (cardId != null) {
-                  uiData['image'] = cardId;
-                } else {
-                  uiData['image'] = imageValue;
-                }
-              } else {
-                uiData['image'] = imageValue;
+              final raw = questionJson['image']?.toString();
+              final normalized =
+                  await _normalizeImageValueForDb(raw, packId: packId);
+              if (normalized != null) {
+                uiData['image'] = normalized;
               }
             }
             if (questionJson['text'] != null) uiData['text'] = questionJson['text'];

mnemo_cards_backend/lib/tests/test_manager.dart

@@ -2,7 +2,9 @@ import 'dart:convert';
 import 'dart:math';
 
 import 'package:injectable/injectable.dart';
+import 'package:drift_postgres/drift_postgres.dart';
 import 'package:mnemo_cards_backend/database/database.dart';
+import 'package:mnemo_cards_backend/packs/card_image_storage.dart';
 import 'package:mnemo_cards_common_backend/mnemo_cards_common_backend.dart';
 import 'package:mnemo_cards_backend/tests/generators/models/creation_test_data.dart';
 import 'package:mnemo_cards_common/mnemo_cards_common.dart';
@@ -16,6 +18,130 @@ class TestManager {
 
   TestManager(this._db);
 
+  static final _uuidRegex = RegExp(
+    r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$',
+    caseSensitive: false,
+  );
+
+  bool _isUuid(String value) => _uuidRegex.hasMatch(value.trim());
+
+  bool _isBase64OrDataUrlImage(String value) =>
+      CardImageStorage.tryParseBase64Image(value) != null;
+
+  String? _extractCardIdFromApiImageUrl(String value) {
+    final v = value.trim();
+    if (!CardImageStorage.isApiImageUrl(v)) return null;
+    final match =
+        RegExp(r'/cards/([^/]+)/image(?:Back)?$').firstMatch(v)?.group(1);
+    if (match == null) return null;
+    return _isUuid(match) ? match : null;
+  }
+
+  Future<void> _tryLinkCardToPack({
+    required String packId,
+    required String cardId,
+  }) async {
+    try {
+      final card = await _db.packDao.getCardById(cardId);
+      if (card == null) return;
+      await _db.packDao.addCardToPack(packId: packId, cardId: cardId);
+    } catch (_) {
+      // Best-effort only.
+    }
+  }
+
+  Future<String?> _convertBase64ToCard(String base64Image, String? packId) async {
+    try {
+      final companion = GameCardsCompanion.insert(
+        original: 'test_image',
+        translation: 'test_image',
+        image: '',
+        mnemo: const drift.Value('test_image'),
+      );
+
+      final cardId = await _db.packDao.createCard(companion);
+      if (packId != null) {
+        await _tryLinkCardToPack(packId: packId, cardId: cardId);
+      }
+
+      final stored = await CardImageStorage.persistFromBase64(
+        cardId: cardId,
+        imageValue: base64Image,
+        preferredFileName: null,
+        isBack: false,
+      );
+      if (stored == null) return null;
+
+      final created = await _db.packDao.getCardById(cardId);
+      if (created == null) return null;
+
+      await _db.packDao.updateCard(
+        created.copyWith(
+          image: stored.fileName,
+          updatedAt: PgDateTime(DateTime.now()),
+        ),
+      );
+
+      return cardId;
+    } catch (_) {
+      return null;
+    }
+  }
+
+  Future<String?> _normalizeImageValueForDb(
+    String? value, {
+    required String? packId,
+  }) async {
+    if (value == null) return null;
+    final v = value.trim();
+    if (v.isEmpty) return null;
+
+    if (CardImageStorage.isRemoteUrl(v)) return v;
+
+    final fromApi = _extractCardIdFromApiImageUrl(v);
+    if (fromApi != null) {
+      if (packId != null) {
+        await _tryLinkCardToPack(packId: packId, cardId: fromApi);
+      }
+      return fromApi;
+    }
+
+    if (_isUuid(v)) {
+      if (packId != null) {
+        await _tryLinkCardToPack(packId: packId, cardId: v);
+      }
+      return v;
+    }
+
+    if (_isBase64OrDataUrlImage(v)) {
+      return _convertBase64ToCard(v, packId);
+    }
+
+    return v;
+  }
+
+  String? _imageValueToApiUrl(
+    String? value, {
+    required String? packId,
+  }) {
+    if (value == null) return null;
+    final v = value.trim();
+    if (v.isEmpty) return null;
+
+    if (CardImageStorage.isRemoteUrl(v) || CardImageStorage.isApiImageUrl(v)) {
+      return v;
+    }
+
+    final cardId = _isUuid(v) ? v : _extractCardIdFromApiImageUrl(v);
+    if (cardId != null && packId != null) {
+      return '/api/v2/packs/$packId/cards/$cardId/image';
+    }
+
+    // Don't leak base64 through user API.
+    if (_isBase64OrDataUrlImage(v)) return null;
+    return v;
+  }
+
   Future<TestStatisticsDto?> _testStatisticsDto(
       String userId, String testId) async {
     final statistics = await _db.testDao.getTestStatistics(userId, testId);
@@ -56,26 +182,6 @@ class TestManager {
     // Get packId for the test to convert image IDs to URLs
     final packId = await _db.testDao.getPackIdForTest(testId);
 
-    // Helper function to convert image ID to URL
-    String? _convertImageToUrl(String? imageValue, String? packId) {
-      if (imageValue == null || packId == null) return imageValue;
-      
-      // If it's already a proper URL, return as is
-      if (imageValue.startsWith('http://') || 
-          imageValue.startsWith('https://') ||
-          (imageValue.startsWith('/api/') && imageValue.contains('/cards/') && imageValue.endsWith('/image'))) {
-        return imageValue;
-      }
-      
-      // If it looks like a UUID (card ID), convert to URL
-      if (RegExp(r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', caseSensitive: false).hasMatch(imageValue)) {
-        return '/api/v2/packs/$packId/cards/$imageValue/image';
-      }
-      
-      // Otherwise, assume it's already a card ID and convert
-      return '/api/v2/packs/$packId/cards/$imageValue/image';
-    }
-
     final questions = await _db.testDao.getTestQuestions(testId);
     final statistics = await _testStatisticsDto(user.id!, testId);
 
@@ -107,14 +213,94 @@ class TestManager {
         uiData = {};
       }
 
-      // Convert question image to URL
+      var mutated = false;
+
       if (uiData['image'] != null) {
-        uiData['image'] = _convertImageToUrl(
-          uiData['image'] as String?,
-          packId,
+        final raw = uiData['image']?.toString();
+        final normalized =
+            await _normalizeImageValueForDb(raw, packId: packId);
+        if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+          mutated = true;
+        }
+        if (normalized == null) {
+          uiData.remove('image');
+        } else {
+          uiData['image'] = normalized;
+        }
+      }
+
+      // Normalize button images too (so response is always URLs, never base64).
+      final normalizedButtons = <dynamic>[];
+      for (final b in buttons) {
+        if (b is Map) {
+          final buttonMap = Map<String, dynamic>.from(
+            b.map((k, v) => MapEntry(k.toString(), v)),
+          );
+          if (buttonMap['image'] != null) {
+            final raw = buttonMap['image']?.toString();
+            final normalized =
+                await _normalizeImageValueForDb(raw, packId: packId);
+            if ((raw ?? '').trim() != (normalized ?? '').trim()) {
+              mutated = true;
+            }
+            if (normalized == null) {
+              buttonMap.remove('image');
+            } else {
+              buttonMap['image'] = normalized;
+            }
+          }
+          normalizedButtons.add(buttonMap);
+        } else {
+          normalizedButtons.add(b);
+        }
+      }
+      questionJson['buttons'] = normalizedButtons;
+
+      if (mutated) {
+        await _db.testDao.updateTestQuestion(
+          q.copyWith(
+            options: jsonEncode(normalizedButtons),
+            uiData: jsonEncode(uiData),
+            updatedAt: PgDateTime(DateTime.now()),
+          ),
         );
       }
-      questionJson.addAll(uiData);
+
+      // Convert to URLs for response
+      final uiDataForResponse = Map<String, dynamic>.from(uiData);
+      if (uiDataForResponse['image'] != null) {
+        uiDataForResponse['image'] = _imageValueToApiUrl(
+          uiDataForResponse['image']?.toString(),
+          packId: packId,
+        );
+      }
+
+      final buttonsForResponse = normalizedButtons.map((b) {
+        if (b is Map<String, dynamic> && b['image'] != null) {
+          final updated = Map<String, dynamic>.from(b);
+          updated['image'] = _imageValueToApiUrl(
+            updated['image']?.toString(),
+            packId: packId,
+          );
+          return updated;
+        }
+        if (b is Map) {
+          final updated = Map<String, dynamic>.from(
+            b.map((k, v) => MapEntry(k.toString(), v)),
+          );
+          if (updated['image'] != null) {
+            updated['image'] = _imageValueToApiUrl(
+              updated['image']?.toString(),
+              packId: packId,
+            );
+          }
+          return updated;
+        }
+        return b;
+      }).toList();
+
+      questionJson['buttons'] = buttonsForResponse;
+      questionJson.addAll(uiDataForResponse);
 
       // Matrix question: allow storing only config (matrixSize) and generate
       // actual matrix cards from pack pool on-the-fly if buttons are missing.
@@ -185,9 +371,9 @@ class TestManager {
           .map((button) {
         if (button is Map<String, dynamic> && button['image'] != null) {
           final buttonMap = Map<String, dynamic>.from(button);
-          buttonMap['image'] = _convertImageToUrl(
-            buttonMap['image'] as String?,
-            packId,
+          buttonMap['image'] = _imageValueToApiUrl(
+            buttonMap['image']?.toString(),
+            packId: packId,
           );
           return buttonMap;
         }
@@ -202,7 +388,10 @@ class TestManager {
       id: testId.toString(),
       name: test.name,
       color: test.color,
-      cover: test.cover,
+      cover: _imageValueToApiUrl(
+        await _normalizeImageValueForDb(test.cover, packId: packId),
+        packId: packId,
+      ),
       version: test.version ?? '1.0',
       time: test.time,
       timeSubtitle: test.timeSubtitle,

mnemo_cards_backend/test/api/v2/admin_tests_api_v2_image_urls_test.dart

@@ -0,0 +1,302 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:drift/drift.dart' hide isNull, isNotNull;
+import 'package:mnemo_cards_backend/api/ads/ads_manager.dart';
+import 'package:mnemo_cards_backend/api/authorize/access_service.dart';
+import 'package:mnemo_cards_backend/api/authorize/policies/admin_policy.dart';
+import 'package:mnemo_cards_backend/api/authorize/policies/pack_policy.dart';
+import 'package:mnemo_cards_backend/api/authorize/resource_loader.dart';
+import 'package:mnemo_cards_backend/api/v2/admin_packs_api_v2.dart';
+import 'package:mnemo_cards_backend/api/v2/admin_tests_api_v2.dart';
+import 'package:mnemo_cards_backend/database/database.dart';
+import 'package:mnemo_cards_backend/discounts/discounts_manager.dart';
+import 'package:mnemo_cards_backend/packs/pack_dto_converter.dart';
+import 'package:mnemo_cards_backend/packs/pack_manager.dart';
+import 'package:mnemo_cards_backend/packs/products_price_resolver.dart';
+import 'package:shelf/shelf.dart';
+import 'package:test/test.dart';
+import 'package:mnemo_cards_common_backend/mnemo_cards_common_backend.dart';
+
+void main() {
+  const oneByOnePngBase64 =
+      'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAwMCAO5n5p0AAAAASUVORK5CYII=';
+
+  late AppDatabase db;
+  late AdminTestsApiV2 adminTestsApi;
+  late AdminPacksApiV2 adminPacksApi;
+
+  late AccessService accessService;
+  late UserModel adminUser;
+
+  Request buildAdminRequest(
+    String method,
+    String url, {
+    Object? body,
+  }) {
+    return Request(
+      method,
+      Uri.parse(url),
+      body: body == null ? null : jsonEncode(body),
+    ).change(
+      context: {
+        'user': adminUser,
+        'accessService': accessService,
+      },
+    );
+  }
+
+  setUpAll(() async {
+    final host = Platform.environment['TEST_DB_HOST'] ?? 'localhost';
+    final port =
+        int.tryParse(Platform.environment['TEST_DB_PORT'] ?? '5432') ?? 5432;
+    final database =
+        Platform.environment['TEST_DB_NAME'] ?? 'mnemo_cards_test';
+    final username = Platform.environment['TEST_DB_USER'] ??
+        Platform.environment['DB_USER'] ??
+        'mnemo_user';
+    final password = Platform.environment['TEST_DB_PASSWORD'] ??
+        Platform.environment['DB_PASSWORD'] ??
+        '';
+
+    db = AppDatabase.connect(
+      host: host,
+      port: port,
+      database: database,
+      username: username,
+      password: password,
+    );
+
+    // Ensure pgcrypto is available for gen_random_uuid().
+    await db.customStatement('CREATE EXTENSION IF NOT EXISTS pgcrypto');
+    await Migrator(db).createAll();
+
+    adminTestsApi = AdminTestsApiV2(db);
+    adminPacksApi = AdminPacksApiV2(db);
+
+    // Access service (pack policy is unused for admin-only checks).
+    final discountsManager = DiscountsManager(db);
+    final productsPriceResolver = ProductsPriceResolver(discountsManager, db);
+    final adsManager = AdsManager();
+    final packDtoConverter = PackDtoConverter(productsPriceResolver, adsManager);
+    final packManager = PackManager(db, packDtoConverter);
+
+    final resourceLoader = ResourceLoader(packManager);
+    accessService = AccessService(
+      PackAccessPolicy(resourceLoader),
+      AdminAccessPolicy(),
+    );
+
+    adminUser = UserModel(
+      id: 'admin',
+      admin: true,
+      name: 'Admin',
+      email: 'admin@example.com',
+    );
+  });
+
+  tearDownAll(() async {
+    await db.close();
+  });
+
+  group('AdminTestsApiV2 images', () {
+    String? packId;
+    String? testId;
+    final createdCardIds = <String>{};
+
+    Future<void> cleanup() async {
+      // Delete relations first.
+      if (testId != null) {
+        await (db.delete(db.testPackRelations)
+              ..where((r) => r.testId.equals(testId!)))
+            .go();
+
+        await (db.delete(db.testQuestions)
+              ..where((q) => q.testId.equals(testId!)))
+            .go();
+
+        await (db.delete(db.tests)..where((t) => t.id.equals(testId!))).go();
+      }
+
+      if (packId != null) {
+        await (db.delete(db.cardPackCards)
+              ..where((c) => c.packId.equals(packId!)))
+            .go();
+
+        await (db.delete(db.cardPacks)..where((p) => p.id.equals(packId!))).go();
+      }
+
+      for (final cardId in createdCardIds) {
+        // Remove card DB row
+        await (db.delete(db.gameCards)..where((c) => c.id.equals(cardId))).go();
+
+        // Remove possible image files in data/cards
+        final cardsDir = Directory('${PackManagerUtils.assetsDirectory.path}/cards');
+        final candidates = [
+          File('${cardsDir.path}/$cardId.png'),
+          File('${cardsDir.path}/$cardId.webp'),
+          File('${cardsDir.path}/$cardId.jpg'),
+          File('${cardsDir.path}/$cardId.jpeg'),
+          File('${cardsDir.path}/$cardId.gif'),
+        ];
+        for (final f in candidates) {
+          if (f.existsSync()) {
+            try {
+              await f.delete();
+            } catch (_) {
+              // ignore
+            }
+          }
+        }
+      }
+
+      createdCardIds.clear();
+      packId = null;
+      testId = null;
+    }
+
+    tearDown(() async {
+      await cleanup();
+    });
+
+    test('getTest returns image URLs (no base64) and cards are linked to pack',
+        () async {
+      // Create pack
+      packId = await db.packDao.createPack(
+        CardPacksCompanion.insert(
+          title: 'pack for admin tests images',
+          subtitle: 'subtitle',
+          size: 0,
+        ),
+      );
+
+      // Create test with base64 cover + base64 question/button images
+      final createRequest = buildAdminRequest(
+        'POST',
+        'http://localhost/api/v2/admin/tests',
+        body: {
+          'name': 'test with images',
+          'cover': oneByOnePngBase64,
+          'questions': [
+            {
+              'questionType': 'simple',
+              'word': 'word',
+              'answer': 'btn1',
+              'image': oneByOnePngBase64,
+              'buttons': [
+                {
+                  'id': 'btn1',
+                  'text': 'ok',
+                  'image': oneByOnePngBase64,
+                },
+              ],
+            },
+          ],
+        },
+      );
+
+      final createResp = await adminTestsApi.upsertTest(createRequest);
+      expect(createResp.statusCode, anyOf(equals(201), equals(200)));
+      final createBody = jsonDecode(await createResp.readAsString())
+          as Map<String, dynamic>;
+      testId = (createBody['test'] as Map<String, dynamic>)['id'] as String;
+      expect(testId, isNotEmpty);
+
+      // Link test to pack via admin packs API (this must also link referenced cards)
+      final linkRequest = buildAdminRequest(
+        'POST',
+        'http://localhost/api/v2/admin/packs',
+        body: {
+          'id': packId,
+          'title': 'pack for admin tests images',
+          'addTestIds': [testId],
+        },
+      );
+
+      final linkResp = await adminPacksApi.upsertPack(linkRequest);
+      expect(linkResp.statusCode, equals(200));
+
+      // Fetch test and verify URLs
+      final getReq = buildAdminRequest(
+        'GET',
+        'http://localhost/api/v2/admin/tests/$testId',
+      );
+      final getResp = await adminTestsApi.getTest(getReq, testId!);
+      expect(getResp.statusCode, equals(200));
+
+      final body = jsonDecode(await getResp.readAsString())
+          as Map<String, dynamic>;
+
+      final cover = body['cover'] as String?;
+      expect(cover, isNotNull);
+      expect(cover, isNot(contains(oneByOnePngBase64)));
+      expect(cover, startsWith('/api/v2/packs/$packId/cards/'));
+      expect(cover, endsWith('/image'));
+
+      final questions = body['questions'] as List<dynamic>;
+      expect(questions, hasLength(1));
+      final q0 = questions.first as Map<String, dynamic>;
+
+      final qImage = q0['image'] as String?;
+      expect(qImage, isNotNull);
+      expect(qImage, isNot(contains(oneByOnePngBase64)));
+      expect(qImage, startsWith('/api/v2/packs/$packId/cards/'));
+      expect(qImage, endsWith('/image'));
+
+      final buttons = q0['buttons'] as List<dynamic>;
+      expect(buttons, hasLength(1));
+      final b0 = buttons.first as Map<String, dynamic>;
+      final bImage = b0['image'] as String?;
+      expect(bImage, isNotNull);
+      expect(bImage, isNot(contains(oneByOnePngBase64)));
+      expect(bImage, startsWith('/api/v2/packs/$packId/cards/'));
+      expect(bImage, endsWith('/image'));
+
+      // Extract card ids from URLs and ensure they are linked to the pack.
+      final extractCardId = (String url) {
+        final match = RegExp(r'/cards/([^/]+)/image$').firstMatch(url);
+        return match?.group(1);
+      };
+
+      final coverCardId = extractCardId(cover!);
+      final qCardId = extractCardId(qImage!);
+      final bCardId = extractCardId(bImage!);
+
+      expect(coverCardId, isNotNull);
+      expect(qCardId, isNotNull);
+      expect(bCardId, isNotNull);
+
+      createdCardIds.addAll([coverCardId!, qCardId!, bCardId!]);
+
+      final linked = await (db.select(db.cardPackCards)
+            ..where((c) => c.packId.equals(packId!) &
+                c.cardId.isIn([coverCardId, qCardId, bCardId])))
+          .get();
+      expect(linked.map((e) => e.cardId).toSet(),
+          containsAll([coverCardId, qCardId, bCardId]));
+
+      // Also ensure DB stores cardIds, not API URLs/base64.
+      final dbQuestions = await db.testDao.getTestQuestions(testId!);
+      expect(dbQuestions, hasLength(1));
+      final qDb = dbQuestions.single;
+      final options = jsonDecode(qDb.options) as List<dynamic>;
+      final uiData = jsonDecode(qDb.uiData) as Map<String, dynamic>;
+
+      final storedUiImage = uiData['image']?.toString();
+      expect(storedUiImage, isNotNull);
+      expect(RegExp(r'^[0-9a-f\-]{36}$', caseSensitive: false)
+          .hasMatch(storedUiImage!), isTrue);
+
+      final storedBtnImage =
+          (options.first as Map<String, dynamic>)['image']?.toString();
+      expect(storedBtnImage, isNotNull);
+      expect(RegExp(r'^[0-9a-f\-]{36}$', caseSensitive: false)
+          .hasMatch(storedBtnImage!), isTrue);
+
+      final storedCover = (await db.testDao.getTestById(testId!))!.cover;
+      expect(storedCover, isNotNull);
+      expect(RegExp(r'^[0-9a-f\-]{36}$', caseSensitive: false)
+          .hasMatch(storedCover!), isTrue);
+    });
+  });
+}

mnemo_cards_backend/test/database/daos/test_manager_generated_pack_link_test.dart

@@ -0,0 +1,123 @@
+import 'dart:io';
+
+import 'package:drift/drift.dart' hide isNull;
+import 'package:mnemo_cards_backend/database/database.dart';
+import 'package:mnemo_cards_backend/tests/test_manager.dart';
+import 'package:mnemo_cards_common_backend/mnemo_cards_common_backend.dart';
+import 'package:test/test.dart';
+
+void main() {
+  late AppDatabase db;
+  late TestManager testManager;
+
+  setUpAll(() async {
+    final host = Platform.environment['TEST_DB_HOST'] ?? 'localhost';
+    final port =
+        int.tryParse(Platform.environment['TEST_DB_PORT'] ?? '5432') ?? 5432;
+    final database =
+        Platform.environment['TEST_DB_NAME'] ?? 'mnemo_cards_test';
+    final username = Platform.environment['TEST_DB_USER'] ??
+        Platform.environment['DB_USER'] ??
+        'mnemo_user';
+    final password = Platform.environment['TEST_DB_PASSWORD'] ??
+        Platform.environment['DB_PASSWORD'] ??
+        '';
+
+    db = AppDatabase.connect(
+      host: host,
+      port: port,
+      database: database,
+      username: username,
+      password: password,
+    );
+
+    // Ensure pgcrypto is available for gen_random_uuid().
+    await db.customStatement('CREATE EXTENSION IF NOT EXISTS pgcrypto');
+
+    // Create tables if needed (idempotent in drift for Postgres).
+    await Migrator(db).createAll();
+
+    testManager = TestManager(db);
+  });
+
+  tearDownAll(() async {
+    await db.close();
+  });
+
+  group('TestManager.updateGeneratedTests', () {
+    String? packId;
+    String? cardId;
+
+    tearDown(() async {
+      // Cleanup is scoped to the entities created by this test.
+      // Delete generated tests to avoid leaving orphans if pack is removed.
+      final generatedTests = await (db.select(db.tests)
+            ..where((t) => t.version.equals('generated')))
+          .get();
+      for (final t in generatedTests) {
+        await (db.delete(db.tests)..where((x) => x.id.equals(t.id))).go();
+      }
+
+      if (packId != null) {
+        await (db.delete(db.cardPacks)..where((p) => p.id.equals(packId!)))
+            .go();
+      }
+      if (cardId != null) {
+        await (db.delete(db.gameCards)..where((c) => c.id.equals(cardId!)))
+            .go();
+      }
+
+      packId = null;
+      cardId = null;
+    });
+
+    test('creates generated test and links it to pack', () async {
+      packId = await db.packDao.createPack(
+        CardPacksCompanion.insert(
+          title: 'pack for generated test link',
+          subtitle: 'subtitle',
+          size: 1,
+        ),
+      );
+
+      cardId = await db.packDao.createCard(
+        GameCardsCompanion.insert(
+          original: 'hello',
+          translation: 'привет',
+          image: 'image_1',
+        ),
+      );
+
+      await db.packDao.addCardToPack(
+        packId: packId!,
+        cardId: cardId!,
+        order: 0,
+      );
+
+      final packModel = CardPackModel(
+        id: packId!,
+        title: 'ignored',
+        subtitle: 'ignored',
+        size: 1,
+      );
+
+      await testManager.updateGeneratedTests(packModel);
+
+      final packTests = await db.testDao.getTestsByPackId(packId!);
+      final generated =
+          packTests.where((t) => t.version == 'generated').toList();
+
+      expect(generated, hasLength(1));
+
+      final linkedPackId =
+          await db.testDao.getPackIdForTest(generated.single.id);
+      expect(linkedPackId, equals(packId));
+
+      final relations = await (db.select(db.testPackRelations)
+            ..where((r) => r.packId.equals(packId!)))
+          .get();
+      expect(relations, hasLength(1));
+      expect(relations.single.testId, equals(generated.single.id));
+    });
+  });
+}

mnemo_cards_backend/test/packs/voice_storage_test.dart

@@ -0,0 +1,67 @@
+import 'dart:convert';
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:mnemo_cards_backend/packs/voice_storage.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('VoiceStorage', () {
+    test('sanitizeVoiceFileName strips voice/ prefix and rejects traversal', () {
+      expect(VoiceStorage.sanitizeVoiceFileName('voice/a.mp3'), 'a.mp3');
+      expect(VoiceStorage.sanitizeVoiceFileName('/voice/a.mp3'), 'a.mp3');
+      expect(VoiceStorage.sanitizeVoiceFileName('a.mp3'), 'a.mp3');
+
+      expect(VoiceStorage.sanitizeVoiceFileName('../a.mp3'), isNull);
+      expect(VoiceStorage.sanitizeVoiceFileName('voice/../a.mp3'), isNull);
+      expect(VoiceStorage.sanitizeVoiceFileName('voice/a/b.mp3'), isNull);
+    });
+
+    test('tryParseBase64Audio parses data: url and detects mp3', () {
+      final bytes = Uint8List.fromList([0x49, 0x44, 0x33, 0x03, 0x00, 0x00]);
+      final b64 = base64Encode(bytes);
+
+      final parsed = VoiceStorage.tryParseBase64Audio(
+        'data:audio/mpeg;base64,$b64',
+      );
+
+      expect(parsed, isNotNull);
+      expect(parsed!.contentType, 'audio/mpeg');
+      expect(parsed.ext, 'mp3');
+      expect(parsed.bytes, isNotEmpty);
+    });
+
+    test('persistFromBase64 writes file into voice/ and resolves it', () async {
+      final tempDir = await Directory.systemTemp.createTemp('voice_assets_');
+      addTearDown(() async {
+        if (tempDir.existsSync()) {
+          await tempDir.delete(recursive: true);
+        }
+      });
+
+      const voiceId = 'f00b6be5-867a-43b4-979f-075e1ccf0f22';
+      final bytes = Uint8List.fromList([0x49, 0x44, 0x33, 0x03, 0x00, 0x00]);
+      final b64 = base64Encode(bytes);
+
+      final stored = await VoiceStorage.persistFromBase64(
+        voiceId: voiceId,
+        voiceValue: 'data:audio/mpeg;base64,$b64',
+        assetsDirectory: tempDir,
+      );
+
+      expect(stored, isNotNull);
+      expect(stored!.fileName, '$voiceId.mp3');
+
+      final resolved = await VoiceStorage.tryResolveLocalFile(
+        voiceValue: stored.fileName,
+        assetsDirectory: tempDir,
+      );
+
+      expect(resolved, isNotNull);
+      expect(resolved!.fileName, stored.fileName);
+      expect(resolved.contentType, 'audio/mpeg');
+      expect(resolved.bytes, isNotEmpty);
+    });
+  });
+}
+

mnemo_cards_backend/test/tests/generators/question_generators/matrix_question_generator_test.dart

@@ -0,0 +1,81 @@
+import 'package:mnemo_cards_backend/tests/generators/models/creation_test_data.dart';
+import 'package:mnemo_cards_backend/tests/generators/question_generators/matrix_question_generator.dart';
+import 'package:mnemo_cards_common/mnemo_cards_common.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('MatrixQuestionGenerator', () {
+    test('generates matrix question with fixed size', () async {
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: List.generate(
+          12,
+          (i) => TestDataItem(
+            id: 'card_$i',
+            original: 'orig_$i',
+            translation: 'tr_$i',
+            image: 'card_$i',
+            audio: 'orig_$i',
+          ),
+        ),
+      );
+
+      final generator = MatrixQuestionGenerator(
+        data,
+        seed: 1,
+        fixedMatrixSize: 3,
+      );
+
+      final answerCard = data.items.first;
+      final q = await generator.generate(answerCard);
+
+      expect(q, isA<MatrixTestQuestionBody>());
+      final mq = q as MatrixTestQuestionBody;
+
+      expect(mq.questionType, TestQuestionType.matrix);
+      expect(mq.matrixSize, 3);
+      expect(mq.cards.length, 9);
+
+      final ids = mq.cards.map((c) => c.id).toSet();
+      expect(ids.length, 9, reason: 'Matrix must contain unique cards');
+
+      expect(mq.answer, answerCard.id);
+      expect(mq.word, answerCard.original);
+      expect(ids.contains(answerCard.id), isTrue);
+    });
+
+    test('clamps matrix size down when pool is too small', () async {
+      final data = CreationTestData(
+        packId: 'p1',
+        title: 'Pack',
+        color: '#fff',
+        items: List.generate(
+          5,
+          (i) => TestDataItem(
+            id: 'card_$i',
+            original: 'orig_$i',
+            translation: 'tr_$i',
+            image: 'card_$i',
+            audio: 'orig_$i',
+          ),
+        ),
+      );
+
+      final generator = MatrixQuestionGenerator(
+        data,
+        seed: 1,
+        fixedMatrixSize: 4, // impossible for pool=5
+      );
+
+      final q = await generator.generate(data.items.first);
+      final mq = q as MatrixTestQuestionBody;
+
+      // sqrt(5) == 2 -> 2x2
+      expect(mq.matrixSize, 2);
+      expect(mq.cards.length, 4);
+    });
+  });
+}
+

mnemo_cards_web_v2/lib/domain/services/auth_service.dart

@@ -5,7 +5,7 @@ import 'package:google_sign_in/google_sign_in.dart';
 import 'package:mnemo_cards_common/mnemo_cards_common.dart';
 import 'package:mnemo_cards_web_v2/domain/models/telegram_auth_code_status.dart';
 import 'package:mnemo_cards_web_v2/domain/services/http_repository_v2.dart';
-import 'package:telegram_web_app/telegram_web_app.dart';
+import 'package:mnemo_cards_web_v2/utils/telegram_web_app_compat.dart';
 
 /// Service for user authentication
 ///

mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart

@@ -23,10 +23,12 @@ import '../../../presentation/widgets/loading_view.dart';
 class GamePage extends StatefulWidget {
   const GamePage({
     required this.testId,
+    this.returnToLocation,
     super.key,
   });
 
   final String testId;
+  final String? returnToLocation;
   static const questionCardKey = Key('game_question_card');
 
   @override
@@ -406,40 +408,45 @@ class _GamePageState extends State<GamePage> {
                           ),
                         ],
                       ),
-                      child: Column(
-                        mainAxisAlignment: MainAxisAlignment.center,
-                        children: [
-                          TweenAnimationBuilder<int>(
-                            tween: Tween<int>(begin: 0, end: accuracy),
-                            duration: const Duration(milliseconds: 1200),
-                            builder: (context, animatedAccuracy, child) {
-                              return Text(
-                                '$animatedAccuracy%',
-                                style: TextStyle(
-                                  fontSize: 32.sp,
-                                  fontWeight: FontWeight.bold,
-                                  color: scoreColor,
+                      child: Center(
+                        child: FittedBox(
+                          fit: BoxFit.scaleDown,
+                          child: Column(
+                            mainAxisAlignment: MainAxisAlignment.center,
+                            children: [
+                              TweenAnimationBuilder<int>(
+                                tween: Tween<int>(begin: 0, end: accuracy),
+                                duration: const Duration(milliseconds: 1200),
+                                builder: (context, animatedAccuracy, child) {
+                                  return Text(
+                                    '$animatedAccuracy%',
+                                    style: TextStyle(
+                                      fontSize: 32.sp,
+                                      fontWeight: FontWeight.bold,
+                                      color: scoreColor,
+                                    ),
+                                  );
+                                },
+                              ),
+                              SizedBox(height: 4.h),
+                              FadeTransition(
+                                opacity: Tween<double>(begin: 0, end: 1).animate(
+                                  CurvedAnimation(
+                                    parent: ModalRoute.of(context)?.animation ?? const AlwaysStoppedAnimation(1),
+                                    curve: const Interval(0.5, 1.0, curve: Curves.easeIn),
+                                  ),
+                                ),
+                                child: Text(
+                                  'Score',
+                                  style: TextStyle(
+                                    fontSize: 14.sp,
+                                    color: scoreColor,
+                                  ),
                                 ),
-                              );
-                            },
-                          ),
-                          SizedBox(height: 4.h),
-                          FadeTransition(
-                            opacity: Tween<double>(begin: 0, end: 1).animate(
-                              CurvedAnimation(
-                                parent: ModalRoute.of(context)?.animation ?? const AlwaysStoppedAnimation(1),
-                                curve: const Interval(0.5, 1.0, curve: Curves.easeIn),
                               ),
-                            ),
-                            child: Text(
-                              'Score',
-                              style: TextStyle(
-                                fontSize: 14.sp,
-                                color: scoreColor,
-                              ),
-                            ),
+                            ],
                           ),
-                        ],
+                        ),
                       ),
                     ),
                   );
@@ -480,9 +487,9 @@ class _GamePageState extends State<GamePage> {
                   ),
                   SizedBox(width: 16.w),
                   ElevatedButton.icon(
-                    onPressed: () => context.pop(),
-                    icon: const Icon(Icons.home),
-                    label: const Text('Back to Tests'),
+                    onPressed: _leaveGame,
+                    icon: const Icon(Icons.arrow_back),
+                    label: const Text('Back'),
                     style: ElevatedButton.styleFrom(
                       backgroundColor: colorScheme.primary,
                       foregroundColor: colorScheme.onPrimary,
@@ -537,6 +544,49 @@ class _GamePageState extends State<GamePage> {
     }
   }
 
+  Future<void> _leaveGame() async {
+    final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
+    final userScope = appScope?.userScopeHolder.scope;
+
+    try {
+      // Exit means "discard progress" (as per confirmation dialog text).
+      // Fire-and-forget: navigation should not wait for state cleanup.
+      userScope?.testsModule.testsStateManager
+          .resetGameSession()
+          .catchError((Object e, StackTrace s) {
+        log(
+          'Failed to reset game session',
+          error: e,
+          stackTrace: s,
+          name: 'GamePage',
+        );
+      });
+    } catch (e, s) {
+      log('Failed to reset game session', error: e, stackTrace: s, name: 'GamePage');
+    }
+
+    if (!mounted) return;
+
+    final router = GoRouter.of(context);
+
+    final before = router.routeInformationProvider.value.uri.toString();
+
+    // Prefer popping when we have a real back stack (normal flow: TestPage -> GamePage via push).
+    // Note: on web, go_router's `canPop()` may be true even when popping is a no-op; so we
+    // verify by comparing location after pop and fall back to go().
+    if (router.canPop()) {
+      router.pop();
+      await Future<void>.delayed(Duration.zero);
+      if (!mounted) return;
+
+      final after = router.routeInformationProvider.value.uri.toString();
+      if (after != before) return;
+    }
+
+    // Deep-link (or no-op pop) fallback.
+    router.go(widget.returnToLocation ?? '/home');
+  }
+
   void _restartGame() {
     final appScope = ScopeProvider.of<AppScopeContainer>(context, listen: false);
     final userScope = appScope?.userScopeHolder.scope;
@@ -587,18 +637,21 @@ class _GamePageState extends State<GamePage> {
   void _showExitConfirmation(BuildContext context) {
     showDialog<void>(
       context: context,
-      builder: (context) => AlertDialog(
+      builder: (dialogContext) => AlertDialog(
         title: const Text('Exit Game'),
         content: const Text('Are you sure you want to exit? Your progress will be lost.'),
         actions: [
           TextButton(
-            onPressed: () => Navigator.of(context).pop(),
+            onPressed: () => Navigator.of(dialogContext).pop(),
             child: const Text('Cancel'),
           ),
           TextButton(
-            onPressed: () {
-              Navigator.of(context).pop();
-              context.pop();
+            onPressed: () async {
+              Navigator.of(dialogContext).pop();
+              // Let the dialog route actually get removed from the Navigator
+              // before we decide whether we can pop the game route.
+              await Future<void>.delayed(Duration.zero);
+              await _leaveGame();
             },
             child: const Text('Exit'),
           ),

mnemo_cards_web_v2/lib/presentation/pages/pack_details/pack_details_page.dart

@@ -198,7 +198,10 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
     }
 
     log('Launching test: ${test.name}', name: 'PackDetailsPage');
-    context.push('/test/${test.id}');
+    context.push(
+      '/game/${test.id}',
+      extra: '/pack/${widget.packId}',
+    );
   }
 
   @override
@@ -326,7 +329,7 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
     });
 
     try {
-      await Future.delayed(const Duration(milliseconds: 100));
+      await Future<void>.delayed(const Duration(milliseconds: 100));
       if (mounted) {
         await context.push('/purchase/${widget.packId}');
       }
@@ -401,7 +404,6 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
               });
             },
             isFavoritesMode: _isFavoritesMode,
-            isShuffleActive: _isShuffled,
             shuffleTurns: _shuffleAnimationTurns,
           ),
           const SizedBox(height: 16),
@@ -451,6 +453,7 @@ class _PackDetailsPageState extends State<PackDetailsPage> {
   }
 
   /// Модуль "проверка знаний" для мобильных экранов
+  // ignore: unused_element
   Widget _buildMobileTestsSection(Color packColor) {
     final tests = _getTests();
 

mnemo_cards_web_v2/lib/presentation/pages/test/test_page.dart

@@ -229,7 +229,7 @@ class _TestPageState extends State<TestPage> {
   }
 
   void _playGame(BuildContext context) {
-    context.go('/game/${widget.testId}');
+    context.push('/game/${widget.testId}');
   }
 
   void _handleBack() {

mnemo_cards_web_v2/lib/presentation/router/app_router.dart

@@ -12,7 +12,6 @@ import '../pages/purchase/purchase_page.dart';
 import '../pages/statistics/statistics_page.dart';
 import '../pages/tasks/create_task_page.dart';
 import '../pages/tasks/tasks_page.dart';
-import '../pages/test/test_page.dart';
 import '../widgets/main_shell.dart';
 
 /// Создает конфигурацию роутера приложения
@@ -132,12 +131,14 @@ GoRouter createAppRouter({
       GoRoute(
         path: '/test/:testId',
         name: 'test',
-        pageBuilder: (context, state) {
-          final testId = state.pathParameters['testId']!;
-          return MaterialPage(
-            child: TestPage(testId: testId),
-          );
+        redirect: (context, state) {
+          final testId = state.pathParameters['testId'];
+          if (testId == null || testId.isEmpty) return '/home';
+          return '/game/$testId';
         },
+        pageBuilder: (context, state) => const NoTransitionPage(
+          child: SizedBox.shrink(),
+        ),
       ),
 
       // Game Page
@@ -147,7 +148,10 @@ GoRouter createAppRouter({
         pageBuilder: (context, state) {
           final testId = state.pathParameters['testId']!;
           return MaterialPage(
-            child: GamePage(testId: testId),
+            child: GamePage(
+              testId: testId,
+              returnToLocation: state.extra is String ? state.extra as String : null,
+            ),
           );
         },
       ),

mnemo_cards_web_v2/lib/presentation/widgets/pack_details_controls.dart

@@ -15,7 +15,6 @@ class PackDetailsControls extends StatelessWidget {
     required this.onShuffle,
     required this.onToggleFavorites,
     this.isFavoritesMode = false,
-    this.isShuffleActive = false,
     this.shuffleTurns = 0.0,
     super.key,
   });
@@ -25,7 +24,6 @@ class PackDetailsControls extends StatelessWidget {
   final VoidCallback onShuffle;
   final VoidCallback onToggleFavorites;
   final bool isFavoritesMode;
-  final bool isShuffleActive;
   final double shuffleTurns;
 
   @override
@@ -49,7 +47,6 @@ class PackDetailsControls extends StatelessWidget {
             icon: Icons.shuffle,
             label: 'Перемешать',
             onTap: onShuffle,
-            isActive: isShuffleActive,
             rotationTurns: shuffleTurns,
           ),
 

mnemo_cards_web_v2/lib/utils/telegram_web_app_compat.dart

@@ -0,0 +1,3 @@
+export 'telegram_web_app_compat_stub.dart'
+    if (dart.library.html) 'package:telegram_web_app/telegram_web_app.dart';
+

mnemo_cards_web_v2/lib/utils/telegram_web_app_compat_stub.dart

@@ -0,0 +1,19 @@
+/// Minimal stub for `package:telegram_web_app` used in non-web platforms.
+///
+/// This project is web-only at runtime, but some tests/tools still compile on
+/// the Dart VM. The real `telegram_web_app` package depends on `dart:js_interop`,
+/// which is unavailable on the VM.
+///
+/// Keep this API surface to what we use in `AuthService`.
+class TelegramWebApp {
+  TelegramWebApp._();
+
+  static final TelegramWebApp instance = TelegramWebApp._();
+
+  bool get isSupported => false;
+
+  dynamic get initData => null;
+
+  dynamic get initDataUnsafe => null;
+}
+

mnemo_cards_web_v2/test/domain/services/http_repository_v2_chat_test.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:mnemo_cards_chat/mnemo_cards_chat.dart';

mnemo_cards_web_v2/test/domain/services/purchases_service_test.dart

@@ -123,8 +123,6 @@ void main() {
           paymentSystem: PaymentSystem.yookassa,
           externalToken: 'token',
           meta: '{}',
-          packs: const [],
-          subscription: false,
           products: const [
             MnemoCardsProductDto(
               id: 'pack-001',

mnemo_cards_web_v2/test/domain/services/statistics_service_test.dart

@@ -282,7 +282,7 @@ void main() {
     group('Legacy getStatistics method', () {
       test('still works for backward compatibility', () {
         final user = UserDto(
-          id: 1,
+          id: '1',
           name: 'Test User',
           email: 'test@example.com',
           packs: ['pack1', 'pack2'],

mnemo_cards_web_v2/test/presentation/pages/game/game_exit_finish_test.dart

@@ -0,0 +1,196 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:go_router/go_router.dart';
+import 'package:mocktail/mocktail.dart';
+import 'package:mnemo_cards_common/mnemo_cards_common.dart';
+import 'package:mnemo_cards_web_v2/di/app_scope/app_scope_container.dart';
+import 'package:mnemo_cards_web_v2/di/user_scope/user_scope.dart';
+import 'package:mnemo_cards_web_v2/di/user_scope/user_scope_holder.dart';
+import 'package:mnemo_cards_web_v2/di/user_scope/modules/tests_module.dart';
+import 'package:mnemo_cards_web_v2/domain/services/game_session_manager.dart';
+import 'package:mnemo_cards_web_v2/domain/services/game_sound_service.dart';
+import 'package:mnemo_cards_web_v2/domain/services/test_manager.dart';
+import 'package:mnemo_cards_web_v2/domain/state/tests_state_manager.dart';
+import 'package:mnemo_cards_web_v2/presentation/pages/game/game_page.dart';
+import 'package:yx_scope/yx_scope.dart';
+import 'package:yx_scope_flutter/yx_scope_flutter.dart';
+
+class _MockAppScopeContainer extends Mock implements AppScopeContainer {}
+
+class _MockUserScopeHolder extends Mock implements UserScopeHolder {}
+
+class _MockUserScope extends Mock implements UserScope {}
+
+class _MockTestsModule extends Mock implements TestsModule {}
+
+class _MockTestManager extends Mock implements TestManager {}
+
+void main() {
+  late _MockAppScopeContainer mockAppScope;
+  late _MockUserScopeHolder mockUserScopeHolder;
+  late _MockUserScope mockUserScope;
+  late _MockTestsModule mockTestsModule;
+  late _MockTestManager mockTestManager;
+
+  late GameSessionManager gameSessionManager;
+  late GameSoundService gameSoundService;
+  late TestsStateManager testsStateManager;
+
+  late ScopeStateHolder<AppScopeContainer?> appScopeHolder;
+
+  setUp(() {
+    mockAppScope = _MockAppScopeContainer();
+    mockUserScopeHolder = _MockUserScopeHolder();
+    mockUserScope = _MockUserScope();
+    mockTestsModule = _MockTestsModule();
+    mockTestManager = _MockTestManager();
+
+    gameSessionManager = GameSessionManager();
+    gameSoundService = GameSoundService();
+    testsStateManager = TestsStateManager(
+      testManager: mockTestManager,
+      gameSessionManager: gameSessionManager,
+      gameSoundService: gameSoundService,
+    );
+
+    when(() => mockTestManager.loadTest(any())).thenAnswer(
+      (_) async => TestDto(
+        id: '42',
+        name: 'Sample Test',
+        questions: [
+          SimpleTestQuestionBody(
+            word: 'four',
+            answer: '4',
+            text: '2+2?',
+            buttons: [
+              TestButtonDto.text('3', '3'),
+              TestButtonDto.text('4', '4'),
+            ],
+          ),
+        ],
+      ),
+    );
+
+    when(() => mockAppScope.userScopeHolder).thenReturn(mockUserScopeHolder);
+    when(() => mockUserScopeHolder.scope).thenReturn(mockUserScope);
+    when(() => mockUserScope.testsModule).thenReturn(mockTestsModule);
+
+    when(() => mockTestsModule.testsStateManager).thenReturn(testsStateManager);
+    when(() => mockTestsModule.gameSoundService).thenReturn(gameSoundService);
+    when(() => mockTestsModule.gameSessionManager).thenReturn(gameSessionManager);
+    when(() => mockTestsModule.testManager).thenReturn(mockTestManager);
+
+    appScopeHolder = ScopeStateHolder<AppScopeContainer?>(
+      ScopeState.available(scope: mockAppScope),
+    );
+  });
+
+  testWidgets('Exit confirmation navigates to /home when cannot pop',
+      (tester) async {
+    final router = GoRouter(
+      initialLocation: '/game/42',
+      routes: [
+        GoRoute(
+          path: '/home',
+          builder: (context, state) => Scaffold(
+            body: const Text('Home'),
+          ),
+        ),
+        GoRoute(
+          path: '/game/:testId',
+          builder: (context, state) => GamePage(
+            testId: state.pathParameters['testId']!,
+          ),
+        ),
+      ],
+    );
+    addTearDown(router.dispose);
+
+    await tester.pumpWidget(
+      ScopeProvider<AppScopeContainer>(
+        holder: appScopeHolder,
+        child: ScreenUtilInit(
+          designSize: const Size(390, 844),
+          builder: (context, child) => MaterialApp.router(
+            routerConfig: router,
+          ),
+        ),
+      ),
+    );
+
+    await _pumpUntil(tester, find.byType(GamePage));
+
+    // Tap close -> dialog
+    await tester.tap(find.byIcon(Icons.close).first);
+    await _pumpUntil(tester, find.text('Exit Game'));
+
+    expect(find.text('Exit Game'), findsOneWidget);
+
+    await tester.tap(find.text('Exit'));
+    await _pumpUntil(tester, find.text('Home'));
+
+    expect(router.routeInformationProvider.value.uri.path, equals('/home'));
+    expect(find.text('Home'), findsOneWidget);
+    expect(testsStateManager.state, const TestsState.loading());
+  });
+
+  testWidgets('Completed screen Back navigates to /home when cannot pop',
+      (tester) async {
+    final router = GoRouter(
+      initialLocation: '/game/42',
+      routes: [
+        GoRoute(
+          path: '/home',
+          builder: (context, state) => Scaffold(
+            body: const Text('Home'),
+          ),
+        ),
+        GoRoute(
+          path: '/game/:testId',
+          builder: (context, state) => GamePage(
+            testId: state.pathParameters['testId']!,
+          ),
+        ),
+      ],
+    );
+    addTearDown(router.dispose);
+
+    await tester.pumpWidget(
+      ScopeProvider<AppScopeContainer>(
+        holder: appScopeHolder,
+        child: ScreenUtilInit(
+          designSize: const Size(390, 844),
+          builder: (context, child) => MaterialApp.router(
+            routerConfig: router,
+          ),
+        ),
+      ),
+    );
+
+    await _pumpUntil(tester, find.byType(GamePage));
+
+    // Drive session to completed.
+    await tester.runAsync(() async {
+      await testsStateManager.completeGameSession();
+    });
+    await _pumpUntil(tester, find.text('Game Completed!'));
+
+    expect(find.text('Game Completed!'), findsOneWidget);
+
+    await tester.tap(find.text('Back'));
+    await _pumpUntil(tester, find.text('Home'));
+
+    expect(router.routeInformationProvider.value.uri.path, equals('/home'));
+    expect(find.text('Home'), findsOneWidget);
+    expect(testsStateManager.state, const TestsState.loading());
+  });
+}
+
+Future<void> _pumpUntil(WidgetTester tester, Finder finder) async {
+  for (var i = 0; i < 150; i++) {
+    await tester.pump(const Duration(milliseconds: 100));
+    if (finder.evaluate().isNotEmpty) return;
+  }
+  throw TestFailure('Timed out waiting for: $finder');
+}

mnemo_cards_web_v2/test/presentation/pages/game/game_page_test.dart

@@ -2,34 +2,36 @@ import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
+import 'package:mnemo_cards_common/mnemo_cards_common.dart';
 import 'package:mnemo_cards_web_v2/di/app_scope/app_scope_container.dart';
-import 'package:mnemo_cards_web_v2/di/user_scope/user_scope_holder.dart';
-import 'package:mnemo_cards_web_v2/di/user_scope/user_scope.dart';
 import 'package:mnemo_cards_web_v2/di/user_scope/modules/tests_module.dart';
+import 'package:mnemo_cards_web_v2/di/user_scope/user_scope.dart';
+import 'package:mnemo_cards_web_v2/di/user_scope/user_scope_holder.dart';
+import 'package:mnemo_cards_web_v2/domain/models/game_question.dart';
 import 'package:mnemo_cards_web_v2/domain/services/game_session_manager.dart';
 import 'package:mnemo_cards_web_v2/domain/services/game_sound_service.dart';
 import 'package:mnemo_cards_web_v2/domain/services/test_manager.dart';
-import 'package:mnemo_cards_web_v2/domain/models/game_question.dart';
 import 'package:mnemo_cards_web_v2/domain/state/tests_state_manager.dart';
 import 'package:mnemo_cards_web_v2/presentation/pages/game/game_page.dart';
-import 'package:mnemo_cards_common/mnemo_cards_common.dart';
-import 'package:provider/provider.dart';
+import 'package:yx_scope/yx_scope.dart';
+import 'package:yx_scope_flutter/yx_scope_flutter.dart';
 
-// Mock classes
-class MockAppScopeContainer extends Mock implements AppScopeContainer {}
+class _MockAppScopeContainer extends Mock implements AppScopeContainer {}
 
-class MockUserScopeHolder extends Mock implements UserScopeHolder {}
+class _MockUserScopeHolder extends Mock implements UserScopeHolder {}
 
-class MockUserScope extends Mock implements UserScope {}
+class _MockUserScope extends Mock implements UserScope {}
 
-class MockGameSoundService extends Mock implements GameSoundService {}
+class _MockGameSoundService extends Mock implements GameSoundService {}
 
-class MockTestsStateManager extends Mock implements TestsStateManager {}
+class _MockTestManager extends Mock implements TestManager {}
 
-class FakeTestsModule extends Fake implements TestsModule {
-  FakeTestsModule({
+class _FakeTestsModule extends Fake implements TestsModule {
+  _FakeTestsModule({
     required this.testsStateManager,
     required this.gameSoundService,
+    required this.gameSessionManager,
+    required this.testManager,
   });
 
   @override
@@ -39,70 +41,137 @@ class FakeTestsModule extends Fake implements TestsModule {
   final GameSoundService gameSoundService;
 
   @override
-  GameSessionManager get gameSessionManager => throw UnimplementedError();
+  final GameSessionManager gameSessionManager;
 
   @override
-  TestManager get testManager => throw UnimplementedError();
+  final TestManager testManager;
+}
+
+class _SpyTestsStateManager extends TestsStateManager {
+  _SpyTestsStateManager({
+    required super.testManager,
+    required super.gameSessionManager,
+    required super.gameSoundService,
+  });
+
+  int startCalls = 0;
+  int resumeCalls = 0;
+
+  Future<void> setStateForTest(TestsState newState) {
+    return handle((emit) async {
+      emit(newState);
+    });
+  }
+
+  @override
+  Future<void> startGameSession(String testId) {
+    startCalls++;
+    return Future.value();
+  }
+
+  @override
+  void resumeGameSession() {
+    resumeCalls++;
+  }
 }
 
 void main() {
-  late MockAppScopeContainer mockAppScope;
-  late MockUserScopeHolder mockUserScopeHolder;
-  late MockUserScope mockUserScope;
-  late MockTestsStateManager mockTestsStateManager;
-  late MockGameSoundService mockGameSoundService;
-  late FakeTestsModule fakeTestsModule;
+  late _MockAppScopeContainer mockAppScope;
+  late _MockUserScopeHolder mockUserScopeHolder;
+  late _MockUserScope mockUserScope;
+  late _MockGameSoundService mockGameSoundService;
+  late _MockTestManager mockTestManager;
 
-  setUp(() {
-    mockAppScope = MockAppScopeContainer();
-    mockUserScopeHolder = MockUserScopeHolder();
-    mockUserScope = MockUserScope();
-    mockTestsStateManager = MockTestsStateManager();
-    mockGameSoundService = MockGameSoundService();
-    fakeTestsModule = FakeTestsModule(
-      testsStateManager: mockTestsStateManager,
+  late GameSessionManager gameSessionManager;
+  late _SpyTestsStateManager testsStateManager;
+  late _FakeTestsModule fakeTestsModule;
+
+  late ScopeStateHolder<AppScopeContainer?> appScopeHolder;
+
+  setUp(() async {
+    TestWidgetsFlutterBinding.ensureInitialized();
+    ScreenUtil.ensureScreenSize();
+
+    mockAppScope = _MockAppScopeContainer();
+    mockUserScopeHolder = _MockUserScopeHolder();
+    mockUserScope = _MockUserScope();
+    mockGameSoundService = _MockGameSoundService();
+    mockTestManager = _MockTestManager();
+
+    gameSessionManager = GameSessionManager();
+
+    testsStateManager = _SpyTestsStateManager(
+      testManager: mockTestManager,
+      gameSessionManager: gameSessionManager,
       gameSoundService: mockGameSoundService,
     );
 
-    // Setup the mock chain
+    fakeTestsModule = _FakeTestsModule(
+      testsStateManager: testsStateManager,
+      gameSoundService: mockGameSoundService,
+      gameSessionManager: gameSessionManager,
+      testManager: mockTestManager,
+    );
+
     when(() => mockAppScope.userScopeHolder).thenReturn(mockUserScopeHolder);
     when(() => mockUserScopeHolder.scope).thenReturn(mockUserScope);
     when(() => mockUserScope.testsModule).thenReturn(fakeTestsModule);
-    when(() => mockTestsStateManager.state).thenReturn(const TestsState.loading());
-    when(() => mockTestsStateManager.startGameSession(any<String>())).thenAnswer((_) async {});
-    when(() => mockTestsStateManager.resetGameSession()).thenAnswer((_) async {});
-    when(() => mockTestsStateManager.submitAnswer(any<String>())).thenAnswer((_) async {});
-    when(() => mockTestsStateManager.nextQuestion()).thenAnswer((_) async {});
-    when(() => mockTestsStateManager.previousQuestion()).thenAnswer((_) async {});
+
     when(() => mockGameSoundService.initialize()).thenAnswer((_) async {});
     when(() => mockGameSoundService.playGameStart()).thenAnswer((_) async {});
 
-    // Initialize screen util
-    _initScreenUtil();
+    appScopeHolder = ScopeStateHolder<AppScopeContainer?>(
+      ScopeState.available(scope: mockAppScope),
+    );
   });
 
+  Future<void> pumpGamePage(
+    WidgetTester tester, {
+    required Widget child,
+    ThemeData? theme,
+  }) {
+    return tester.pumpWidget(
+      ScopeProvider<AppScopeContainer>(
+        holder: appScopeHolder,
+        child: ScreenUtilInit(
+          designSize: const Size(390, 844),
+          builder: (context, _) => MaterialApp(
+            theme: theme,
+            home: child,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Future<void> pumpUntil(
+    WidgetTester tester,
+    Finder finder, {
+    int maxPumps = 60,
+    Duration step = const Duration(milliseconds: 50),
+  }) async {
+    for (var i = 0; i < maxPumps; i++) {
+      await tester.pump(step);
+      if (finder.evaluate().isNotEmpty) return;
+    }
+    throw TestFailure('Timed out waiting for: $finder');
+  }
+
   group('GamePage', () {
     testWidgets('should display preparing state', (tester) async {
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionPreparing(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
-          questions: [],
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
+          questions: const [],
         ),
       );
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.text('Ready to Start?'), findsOneWidget);
       expect(find.text('Start Game'), findsOneWidget);
+      expect(testsStateManager.startCalls, equals(0));
     });
 
     testWidgets('does not restart when session already active', (tester) async {
@@ -111,39 +180,30 @@ void main() {
           MultipleChoiceQuestion(
             id: 'q1',
             question: '2+2?',
-            options: ['3', '4'],
+            options: const ['3', '4'],
             correctAnswer: '4',
             word: 'four',
           ),
         ),
       ];
 
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionActive(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
           questions: questions,
           currentQuestionIndex: 0,
           currentResult: null,
-          questionResults: {},
+          questionResults: const {},
           isAnswerSubmitted: false,
           isCorrect: false,
         ),
       );
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
-      await tester.pumpAndSettle();
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
-      verifyNever(() => mockTestsStateManager.startGameSession(any()));
-      verify(() => mockTestsStateManager.resumeGameSession()).called(1);
+      expect(testsStateManager.startCalls, equals(0));
+      expect(testsStateManager.resumeCalls, equals(1));
     });
 
     testWidgets('should display active game state', (tester) async {
@@ -152,37 +212,27 @@ void main() {
           MultipleChoiceQuestion(
             id: 'q1',
             question: 'What is 2+2?',
-            options: ['3', '4', '5'],
+            options: const ['3', '4', '5'],
             correctAnswer: '4',
             word: 'four',
           ),
         ),
       ];
 
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionActive(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
           questions: questions,
           currentQuestionIndex: 0,
           currentResult: null,
-          questionResults: {},
+          questionResults: const {},
           isAnswerSubmitted: false,
           isCorrect: false,
         ),
       );
-      when(() => mockTestsStateManager.canGoNext).thenReturn(true);
-      when(() => mockTestsStateManager.canGoPrevious).thenReturn(false);
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.text('What is 2+2?'), findsOneWidget);
       expect(find.text('3'), findsOneWidget);
@@ -196,26 +246,24 @@ void main() {
           MultipleChoiceQuestion(
             id: 'q1',
             question: 'Capital of France?',
-            options: ['Paris', 'London'],
+            options: const ['Paris', 'London'],
             correctAnswer: 'Paris',
             word: 'paris',
           ),
         ),
       ];
 
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionActive(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
           questions: questions,
           currentQuestionIndex: 0,
           currentResult: null,
-          questionResults: {},
+          questionResults: const {},
           isAnswerSubmitted: false,
           isCorrect: false,
         ),
       );
-      when(() => mockTestsStateManager.canGoNext).thenReturn(true);
-      when(() => mockTestsStateManager.canGoPrevious).thenReturn(false);
 
       final theme = ThemeData(
         colorScheme: ColorScheme.fromSeed(
@@ -227,20 +275,16 @@ void main() {
         ),
       );
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: MaterialApp(
-            theme: theme,
-            home: const GamePage(testId: 'test1'),
-          ),
-        ),
+      await pumpGamePage(
+        tester,
+        child: const GamePage(testId: 'test1'),
+        theme: theme,
       );
-      await tester.pumpAndSettle();
+      await tester.pump();
 
-      final material = tester.widget<Material>(find.byKey(GamePage.questionCardKey));
+      final material = tester.widget<Material>(
+        find.byKey(GamePage.questionCardKey),
+      );
 
       expect(material.color, theme.colorScheme.surface);
       expect(material.surfaceTintColor, theme.colorScheme.surfaceTint);
@@ -252,168 +296,121 @@ void main() {
           MultipleChoiceQuestion(
             id: 'q1',
             question: 'Capital of France?',
-            options: ['Paris', 'London'],
+            options: const ['Paris', 'London'],
             correctAnswer: 'Paris',
             word: 'paris',
           ),
         ),
       ];
 
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionActive(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
           questions: questions,
           currentQuestionIndex: 0,
           currentResult: null,
-          questionResults: {},
+          questionResults: const {},
           isAnswerSubmitted: false,
           isCorrect: false,
         ),
       );
-      when(() => mockTestsStateManager.canGoNext).thenReturn(true);
-      when(() => mockTestsStateManager.canGoPrevious).thenReturn(false);
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
-      await tester.pumpAndSettle();
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.byIcon(Icons.close), findsOneWidget);
     });
 
     testWidgets('starts session when not active', (tester) async {
-      when(() => mockTestsStateManager.state).thenReturn(const TestsState.loading());
+      await testsStateManager.setStateForTest(const TestsState.loading());
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
-      await tester.pumpAndSettle();
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
-      verify(() => mockTestsStateManager.startGameSession('test1')).called(1);
+      expect(testsStateManager.startCalls, equals(1));
     });
 
     testWidgets('should display completed game state', (tester) async {
       final result = GameSessionResult(
         testId: 'test1',
-        questionResults: [],
+        questionResults: const [],
         totalTime: const Duration(seconds: 30),
         correctAnswers: 1,
         totalQuestions: 1,
-        completedAt: DateTime.now(),
+        completedAt: DateTime(2025, 1, 1),
       );
 
-      when(() => mockTestsStateManager.state).thenReturn(
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionCompleted(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
           result: result,
         ),
       );
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.text('Game Completed!'), findsOneWidget);
       expect(find.text('1/1 correct answers'), findsOneWidget);
       expect(find.text('Play Again'), findsOneWidget);
-      expect(find.text('Back to Tests'), findsOneWidget);
+      expect(find.text('Back'), findsOneWidget);
     });
 
     testWidgets('should show exit confirmation dialog', (tester) async {
-      when(() => mockTestsStateManager.state).thenReturn(
+      final questions = [
+        GameQuestion.multipleChoice(
+          MultipleChoiceQuestion(
+            id: 'q1',
+            question: 'Capital of France?',
+            options: const ['Paris', 'London'],
+            correctAnswer: 'Paris',
+            word: 'paris',
+          ),
+        ),
+      ];
+
+      await testsStateManager.setStateForTest(
         TestsState.gameSessionActive(
-          test: TestDto(id: 'test1', name: 'Test Game', questions: []),
-          questions: [],
+          test: TestDto(id: 'test1', name: 'Test Game', questions: const []),
+          questions: questions,
           currentQuestionIndex: 0,
           currentResult: null,
-          questionResults: {},
+          questionResults: const {},
           isAnswerSubmitted: false,
           isCorrect: false,
         ),
       );
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
-      // Tap the close button
       await tester.tap(find.byIcon(Icons.close));
-      await tester.pumpAndSettle();
+      await pumpUntil(tester, find.text('Exit Game'));
 
       expect(find.text('Exit Game'), findsOneWidget);
-      expect(find.text('Are you sure you want to exit?'), findsOneWidget);
+      expect(
+        find.text('Are you sure you want to exit? Your progress will be lost.'),
+        findsOneWidget,
+      );
     });
 
     testWidgets('should display loading state', (tester) async {
-      when(() => mockTestsStateManager.state).thenReturn(
-        const TestsState.loading(),
-      );
+      await testsStateManager.setStateForTest(const TestsState.loading());
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.text('Loading game...'), findsOneWidget);
     });
 
     testWidgets('should display error state', (tester) async {
-      when(() => mockTestsStateManager.state).thenReturn(
-        const TestsState.error('Test error'),
-      );
+      await testsStateManager.setStateForTest(const TestsState.error('Test error'));
 
-      await tester.pumpWidget(
-        MultiProvider(
-          providers: [
-            Provider<AppScopeContainer>.value(value: mockAppScope),
-          ],
-          child: const MaterialApp(
-            home: GamePage(testId: 'test1'),
-          ),
-        ),
-      );
+      await pumpGamePage(tester, child: const GamePage(testId: 'test1'));
+      await tester.pump();
 
       expect(find.text('Game Error'), findsOneWidget);
       expect(find.text('Test error'), findsOneWidget);
     });
   });
 }
-
-Future<void> _initScreenUtil() async {
-  TestWidgetsFlutterBinding.ensureInitialized();
-  ScreenUtil.ensureScreenSize();
-}

mnemo_cards_web_v2/test/presentation/pages/tasks/create_task_page_test.dart

@@ -210,12 +210,24 @@ void main() {
             tags: any(named: 'tags'),
           )).thenThrow(Exception('Network error'));
 
+      final router = GoRouter(
+        initialLocation: '/create',
+        routes: [
+          GoRoute(
+            path: '/',
+            builder: (context, state) => const Scaffold(body: Text('Home')),
+          ),
+          GoRoute(
+            path: '/create',
+            builder: (context, state) => const CreateTaskPage(),
+          ),
+        ],
+      );
+
       await tester.pumpWidget(
         ScopeProvider<UserScope>(
-          scope: userScope,
-          child: MaterialApp(
-            home: const CreateTaskPage(),
-          ),
+          holder: userScopeHolder,
+          child: MaterialApp.router(routerConfig: router),
         ),
       );
 
@@ -272,12 +284,24 @@ void main() {
     });
 
     testWidgets('navigates back on back button', (tester) async {
+      final router = GoRouter(
+        initialLocation: '/create',
+        routes: [
+          GoRoute(
+            path: '/',
+            builder: (context, state) => const Scaffold(body: Text('Home')),
+          ),
+          GoRoute(
+            path: '/create',
+            builder: (context, state) => const CreateTaskPage(),
+          ),
+        ],
+      );
+
       await tester.pumpWidget(
         ScopeProvider<UserScope>(
-          scope: userScope,
-          child: MaterialApp(
-            home: const CreateTaskPage(),
-          ),
+          holder: userScopeHolder,
+          child: MaterialApp.router(routerConfig: router),
         ),
       );
 

mnemo_cards_web_v2/test/presentation/pages/test/test_page_test.dart

@@ -1,96 +1,17 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:go_router/go_router.dart';
-import 'package:mnemo_cards_common/mnemo_cards_common.dart';
-import 'package:mnemo_cards_web_v2/di/app_scope/app_scope_container.dart';
-import 'package:mnemo_cards_web_v2/di/user_scope/user_scope.dart';
-import 'package:mnemo_cards_web_v2/di/user_scope/user_scope_holder.dart';
-import 'package:mnemo_cards_web_v2/di/user_scope/modules/tests_module.dart';
-import 'package:mnemo_cards_web_v2/domain/services/test_manager.dart';
-import 'package:mnemo_cards_web_v2/presentation/pages/test/test_page.dart';
-import 'package:mocktail/mocktail.dart';
-import 'package:yx_scope/yx_scope.dart';
-import 'package:yx_scope_flutter/yx_scope_flutter.dart';
-
-class MockAppScopeContainer extends Mock implements AppScopeContainer {}
-
-class MockUserScopeHolder extends Mock implements UserScopeHolder {}
-
-class MockUserScope extends Mock implements UserScope {}
-
-class MockTestsModule extends Mock implements TestsModule {}
-
-class MockTestManager extends Mock implements TestManager {}
 
 void main() {
-  late MockAppScopeContainer mockAppScope;
-  late MockUserScopeHolder mockUserScopeHolder;
-  late MockUserScope mockUserScope;
-  late MockTestsModule mockTestsModule;
-  late MockTestManager mockTestManager;
-  late ScopeStateHolder<AppScopeContainer?> appScopeHolder;
+  testWidgets('/test/:id redirects to /game/:id', (tester) async {
+    final router = _buildRouter();
+    addTearDown(router.dispose);
 
-  setUp(() {
-    mockAppScope = MockAppScopeContainer();
-    mockUserScopeHolder = MockUserScopeHolder();
-    mockUserScope = MockUserScope();
-    mockTestsModule = MockTestsModule();
-    mockTestManager = MockTestManager();
+    await tester.pumpWidget(MaterialApp.router(routerConfig: router));
+    await tester.pumpAndSettle();
 
-    when(() => mockAppScope.userScopeHolder).thenReturn(mockUserScopeHolder);
-    when(() => mockUserScopeHolder.scope).thenReturn(mockUserScope);
-    when(() => mockUserScope.testsModule).thenReturn(mockTestsModule);
-    when(() => mockTestsModule.testManager).thenReturn(mockTestManager);
-    when(() => mockTestManager.loadTest(any<String>())).thenAnswer(
-      (_) async => TestDto(
-        id: '42',
-        name: 'Sample Test',
-        questions: const <AbstractTestQuestion>[],
-      ),
-    );
-
-    appScopeHolder = ScopeStateHolder<AppScopeContainer?>(
-      ScopeState.available(scope: mockAppScope),
-    );
-  });
-
-  group('TestPage', () {
-    testWidgets('shows interactive-only notice', (tester) async {
-      final router = _buildRouter();
-
-      await tester.pumpWidget(
-        ScopeProvider<AppScopeContainer>(
-          holder: appScopeHolder,
-          child: MaterialApp.router(routerConfig: router),
-        ),
-      );
-      await tester.pumpAndSettle();
-
-      expect(find.text('Sample Test'), findsOneWidget);
-      expect(find.text('Interactive mode only'), findsOneWidget);
-      expect(find.text('Play Interactive Game'), findsOneWidget);
-
-      router.dispose();
-    });
-
-    testWidgets('navigates to game page on tap', (tester) async {
-      final router = _buildRouter();
-
-      await tester.pumpWidget(
-        ScopeProvider<AppScopeContainer>(
-          holder: appScopeHolder,
-          child: MaterialApp.router(routerConfig: router),
-        ),
-      );
-      await tester.pumpAndSettle();
-
-      await tester.tap(find.text('Play Interactive Game'));
-      await tester.pumpAndSettle();
-
-      expect(find.text('Game 42'), findsOneWidget);
-
-      router.dispose();
-    });
+    expect(find.text('Game 42'), findsOneWidget);
+    expect(router.routeInformationProvider.value.uri.path, equals('/game/42'));
   });
 }
 
@@ -99,11 +20,20 @@ GoRouter _buildRouter() {
     initialLocation: '/test/42',
     routes: [
       GoRoute(
-        path: '/test/:id',
-        builder: (context, state) => TestPage(
-          testId: state.pathParameters['id'] ?? '',
+        path: '/home',
+        builder: (context, state) => const Scaffold(
+          body: Center(child: Text('Home')),
         ),
       ),
+      GoRoute(
+        path: '/test/:id',
+        redirect: (context, state) {
+          final testId = state.pathParameters['id'];
+          if (testId == null || testId.isEmpty) return '/home';
+          return '/game/$testId';
+        },
+        builder: (context, state) => const SizedBox.shrink(),
+      ),
       GoRoute(
         path: '/game/:id',
         builder: (context, state) => Scaffold(

mnemo_cards_web_v2/test/presentation/widgets/pack_details_controls_test.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 import 'package:mnemo_cards_web_v2/presentation/widgets/pack_details_controls.dart';
+import 'package:mnemo_cards_web_v2/presentation/theme/app_colors.dart';
 
 void main() {
   testWidgets(
@@ -33,7 +34,6 @@ void main() {
               onToggleView: _noop,
               onShuffle: _noop,
               onToggleFavorites: _noop,
-              isShuffleActive: true,
               shuffleTurns: 1.0,
             ),
           ),
@@ -47,6 +47,44 @@ void main() {
       expect(rotation.turns, 1.0);
     },
   );
+
+  testWidgets(
+    'shuffle button is never rendered as active',
+    (tester) async {
+      await tester.pumpWidget(
+        const MaterialApp(
+          home: Scaffold(
+            body: PackDetailsControls(
+              isGridView: true,
+              onToggleView: _noop,
+              onShuffle: _noop,
+              onToggleFavorites: _noop,
+              shuffleTurns: 0.0,
+            ),
+          ),
+        ),
+      );
+
+      final shuffleGesture = find.ancestor(
+        of: find.text('Перемешать'),
+        matching: find.byType(GestureDetector),
+      );
+      expect(shuffleGesture, findsOneWidget);
+
+      final shuffleContainer = find.descendant(
+        of: shuffleGesture,
+        matching: find.byType(Container),
+      );
+      expect(shuffleContainer, findsOneWidget);
+
+      final container = tester.widget<Container>(shuffleContainer);
+      final decoration = container.decoration as BoxDecoration;
+      expect(decoration.color, Colors.transparent);
+
+      final border = decoration.border as Border;
+      expect(border.top.color, AppColors.borderGray);
+    },
+  );
 }
 
 void _noop() {}

mnemo_cards_web_v2/test/presentation/widgets/task_form_test.dart

@@ -368,12 +368,12 @@ void main() {
       // Verify data was submitted
       expect(submittedData, isNotNull);
       expect(submittedData!.title, 'Test Task');
-      expect(submittedData.description, 'This is a test description');
-      expect(submittedData.type, TaskType.appInternal);
-      expect(submittedData.difficulty, TaskDifficulty.easy);
-      expect(submittedData.rewards.length, 1);
-      expect(submittedData.rewards.first.type, RewardType.xp);
-      expect(submittedData.rewards.first.amount, 100);
+      expect(submittedData!.description, 'This is a test description');
+      expect(submittedData!.type, TaskType.appInternal);
+      expect(submittedData!.difficulty, TaskDifficulty.easy);
+      expect(submittedData!.rewards.length, 1);
+      expect(submittedData!.rewards.first.type, RewardType.xp);
+      expect(submittedData!.rewards.first.amount, 100);
     });
 
     testWidgets('parses tags correctly', (tester) async {
@@ -446,8 +446,8 @@ void main() {
       // Verify tags were parsed
       expect(submittedData, isNotNull);
       expect(submittedData!.tags, isNotNull);
-      expect(submittedData.tags!.length, 3);
-      expect(submittedData.tags, ['tag1', 'tag2', 'tag3']);
+      expect(submittedData!.tags!.length, 3);
+      expect(submittedData!.tags, ['tag1', 'tag2', 'tag3']);
     });
 
     testWidgets('validates tags count and length', (tester) async {

mnemo_cards_web_v2/test/presentation/widgets/utils/card_movement_utils_test.dart

@@ -7,8 +7,8 @@ void main() {
   group('resolveGridMovementOffset', () {
     test('returns zero when card index unchanged', () {
       final offset = resolveGridMovementOffset(
-        previousIndexById: {1: 2},
-        cardId: 1,
+        previousIndexById: {'1': 2},
+        cardId: '1',
         currentIndex: 2,
         crossAxisCount: 3,
         itemWidth: 100,
@@ -21,8 +21,8 @@ void main() {
 
     test('computes offset between different grid cells', () {
       final offset = resolveGridMovementOffset(
-        previousIndexById: {1: 0},
-        cardId: 1,
+        previousIndexById: {'1': 0},
+        cardId: '1',
         currentIndex: 5,
         crossAxisCount: 3,
         itemWidth: 100,
@@ -40,7 +40,7 @@ void main() {
     test('returns zero when previous position unknown', () {
       final offset = resolveListMovementOffset(
         previousIndexById: const {},
-        cardId: 1,
+        cardId: '1',
         currentIndex: 0,
         itemExtent: 100,
         spacing: 8,
@@ -51,8 +51,8 @@ void main() {
 
     test('computes vertical delta between list positions', () {
       final offset = resolveListMovementOffset(
-        previousIndexById: {7: 4},
-        cardId: 7,
+        previousIndexById: {'7': 4},
+        cardId: '7',
         currentIndex: 1,
         itemExtent: 100,
         spacing: 8,