397 lines
11 KiB
Markdown
397 lines
11 KiB
Markdown
# Phase 2 - Files Manifest
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## Summary
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- **Files Created**: 10
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- **Files Modified**: 2
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- **Total Changes**: 12
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- **Lines Added**: ~2,000
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- **Documentation Pages**: 6
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## Created Files
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### 1. Core Services
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#### `src/app/services/pagination.service.ts`
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- **Type**: TypeScript Service
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- **Size**: ~120 lines
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- **Purpose**: Pagination state management
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- **Exports**: `PaginationService`, `NoteMetadata`, `PaginationResponse`
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- **Key Methods**: `loadInitial()`, `loadNextPage()`, `search()`, `invalidateCache()`
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### 2. Components
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#### `src/app/features/list/paginated-notes-list.component.ts`
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- **Type**: Angular Component (Standalone)
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- **Size**: ~280 lines
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- **Purpose**: Virtual scrolling UI component
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- **Imports**: CDK ScrollingModule, CommonModule, ScrollableOverlayDirective
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- **Inputs**: `folderFilter`, `query`, `tagFilter`, `quickLinkFilter`
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- **Outputs**: `openNote`, `queryChange`, `clearQuickLinkFilter`
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### 3. Configuration
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#### `src/app/constants/pagination.config.ts`
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- **Type**: TypeScript Configuration
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- **Size**: ~60 lines
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- **Purpose**: Centralized pagination configuration
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- **Exports**: `PAGINATION_CONFIG`, `getEffectivePageSize()`, `getPreloadThreshold()`, `getItemHeight()`, `debugLog()`
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- **Configurable**: Page size, item height, preload threshold, search debounce, debug mode
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### 4. Testing
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#### `scripts/test-pagination.mjs`
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- **Type**: Node.js Script
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- **Size**: ~90 lines
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- **Purpose**: Comprehensive pagination endpoint tests
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- **Tests**: First page, multi-page, search, large offsets
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- **Run**: `npm run test:pagination`
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### 5. Documentation
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#### `docs/PERFORMENCE/phase2/IMPLEMENTATION_PHASE2.md`
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- **Type**: Markdown Documentation
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- **Size**: ~450 lines
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- **Content**: Detailed implementation guide, configuration, troubleshooting
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#### `docs/PERFORMENCE/phase2/QUICK_START_PHASE2.md`
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- **Type**: Markdown Documentation
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- **Size**: ~150 lines
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- **Content**: 5-minute integration guide, key differences, verification checklist
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#### `docs/PERFORMENCE/phase2/INTEGRATION_CHECKLIST.md`
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- **Type**: Markdown Documentation
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- **Size**: ~400 lines
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- **Content**: Step-by-step integration, testing procedures, success criteria
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#### `docs/PERFORMENCE/phase2/README_PHASE2.md`
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- **Type**: Markdown Documentation
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- **Size**: ~350 lines
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- **Content**: Complete reference, architecture, configuration, testing
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#### `docs/PERFORMENCE/phase2/SUMMARY.md`
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- **Type**: Markdown Documentation
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- **Size**: ~400 lines
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- **Content**: Implementation summary, performance improvements, next steps
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#### `docs/PERFORMENCE/phase2/DELIVERABLES.md`
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- **Type**: Markdown Documentation
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- **Size**: ~350 lines
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- **Content**: What's included, how to use, quality checklist
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#### `docs/PERFORMENCE/phase2/FILES_MANIFEST.md`
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- **Type**: Markdown Documentation
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- **Size**: This file
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- **Content**: Complete file listing and descriptions
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## Modified Files
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### 1. Server Implementation
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#### `server/index.mjs`
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- **Change**: Added new endpoint
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- **Lines Added**: 85
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- **New Endpoint**: `GET /api/vault/metadata/paginated`
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- **Features**: Cursor-based pagination, Meilisearch integration, search support
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- **Location**: After line 544 (after existing `/api/vault/metadata` endpoint)
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**Changes**:
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```javascript
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// Added new endpoint (lines 546-630)
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app.get('/api/vault/metadata/paginated', async (req, res) => {
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// Implementation with Meilisearch and filesystem fallback
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});
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```
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### 2. Package Configuration
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#### `package.json`
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- **Change**: Added test script
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- **Lines Added**: 1
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- **New Script**: `"test:pagination": "node scripts/test-pagination.mjs"`
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- **Location**: Line 26 (in scripts section)
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**Changes**:
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```json
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"test:pagination": "node scripts/test-pagination.mjs"
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```
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## File Structure
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```
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ObsiViewer/
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├── src/
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│ └── app/
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│ ├── services/
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│ │ └── pagination.service.ts (NEW)
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│ ├── constants/
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│ │ └── pagination.config.ts (NEW)
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│ └── features/
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│ └── list/
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│ └── paginated-notes-list.component.ts (NEW)
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├── server/
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│ └── index.mjs (MODIFIED - added endpoint)
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├── scripts/
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│ └── test-pagination.mjs (NEW)
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├── package.json (MODIFIED - added script)
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└── docs/
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└── PERFORMENCE/
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└── phase2/
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├── IMPLEMENTATION_PHASE2.md (NEW)
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├── QUICK_START_PHASE2.md (NEW)
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├── INTEGRATION_CHECKLIST.md (NEW)
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├── README_PHASE2.md (NEW)
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├── SUMMARY.md (NEW)
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├── DELIVERABLES.md (NEW)
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└── FILES_MANIFEST.md (NEW - this file)
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```
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## Detailed File Descriptions
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### Services
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**`src/app/services/pagination.service.ts`**
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```typescript
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export interface NoteMetadata {
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id: string;
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title: string;
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filePath: string;
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createdAt: string;
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updatedAt: string;
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}
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export interface PaginationResponse {
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items: NoteMetadata[];
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nextCursor: number | null;
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hasMore: boolean;
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total: number;
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}
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@Injectable({ providedIn: 'root' })
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export class PaginationService {
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// Signals for reactive state
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// Methods: loadInitial, loadNextPage, search, invalidateCache
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// Computed: allItems, totalLoaded, canLoadMore, isLoadingMore, hasMore
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}
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```
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### Components
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**`src/app/features/list/paginated-notes-list.component.ts`**
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```typescript
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@Component({
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selector: 'app-paginated-notes-list',
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standalone: true,
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imports: [CommonModule, ScrollingModule, ScrollableOverlayDirective],
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template: `
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<cdk-virtual-scroll-viewport itemSize="60">
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<!-- Virtual items -->
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</cdk-virtual-scroll-viewport>
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`
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})
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export class PaginatedNotesListComponent implements OnInit, OnDestroy {
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// Virtual scrolling with CDK
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// Automatic page loading
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// Search and filter support
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}
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```
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### Configuration
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**`src/app/constants/pagination.config.ts`**
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```typescript
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export const PAGINATION_CONFIG = {
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PAGE_SIZE: 100,
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ITEM_HEIGHT: 60,
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PRELOAD_THRESHOLD: 20,
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MAX_PAGE_SIZE: 500,
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MIN_PAGE_SIZE: 10,
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PAGINATED_METADATA_ENDPOINT: '/api/vault/metadata/paginated',
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SEARCH_DEBOUNCE_MS: 300,
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CACHE_TTL_MS: 5 * 60 * 1000,
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DEBUG: false
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};
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```
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### Server Endpoint
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**`server/index.mjs` - New Endpoint**
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```javascript
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app.get('/api/vault/metadata/paginated', async (req, res) => {
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// Parameters: limit, cursor, search
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// Response: { items, nextCursor, hasMore, total }
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// Meilisearch integration with filesystem fallback
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});
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```
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### Testing
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**`scripts/test-pagination.mjs`**
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```javascript
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// Tests:
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// 1. First page load
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// 2. Multi-page pagination
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// 3. Search with pagination
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// 4. Large cursor offsets
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// Run: npm run test:pagination
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```
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## Dependencies
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### No New Dependencies Required
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All files use existing packages:
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- `@angular/core` - Already installed
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- `@angular/cdk` - Already installed (v20.2.7)
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- `@angular/common` - Already installed
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- `rxjs` - Already installed
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- `express` - Already installed (server)
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### Existing Packages Used
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- Angular CDK ScrollingModule - For virtual scrolling
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- Angular Signals - For reactive state
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- Meilisearch - For search (already integrated)
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- Express - For server (already used)
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## Integration Points
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### What Needs to Change in Your Code
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1. **Parent Component**
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- Import `PaginatedNotesListComponent`
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- Replace `<app-notes-list>` with `<app-paginated-notes-list>`
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- Remove `[notes]` input
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- Update event handlers
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2. **Vault Event Handler**
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- Add `paginationService.invalidateCache()` on file changes
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- Add `paginationService.loadInitial()` to reload
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3. **No Other Changes Required**
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- Old component still works
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- Old endpoint still works
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- Backward compatible
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## Backward Compatibility
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### What Still Works
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- ✅ Old endpoint: `GET /api/vault/metadata`
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- ✅ Old component: `app-notes-list`
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- ✅ Old data loading patterns
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- ✅ Existing features
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### What's New
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- ✅ New endpoint: `GET /api/vault/metadata/paginated`
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- ✅ New component: `app-paginated-notes-list`
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- ✅ New service: `PaginationService`
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- ✅ New configuration: `PAGINATION_CONFIG`
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## Testing Coverage
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### Automated Tests
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- `npm run test:pagination`
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- Tests: First page, pagination, search, large offsets
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- Coverage: Server endpoint functionality
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### Manual Testing Checklist
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- Scroll through notes list
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- Check DevTools Network tab
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- Verify 60fps scrolling
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- Test search functionality
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- Verify memory usage < 50MB
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## Documentation Coverage
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| Document | Purpose | Audience |
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|----------|---------|----------|
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| QUICK_START_PHASE2.md | Fast integration | Developers |
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| IMPLEMENTATION_PHASE2.md | Detailed guide | Technical leads |
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| INTEGRATION_CHECKLIST.md | Step-by-step | All developers |
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| README_PHASE2.md | Complete reference | Everyone |
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| SUMMARY.md | Overview | Managers/Leads |
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| DELIVERABLES.md | What's included | Everyone |
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| FILES_MANIFEST.md | File listing | Technical |
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## Version Control
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### Files to Commit
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```bash
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# New files
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git add src/app/services/pagination.service.ts
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git add src/app/features/list/paginated-notes-list.component.ts
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git add src/app/constants/pagination.config.ts
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git add scripts/test-pagination.mjs
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git add docs/PERFORMENCE/phase2/
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# Modified files
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git add server/index.mjs
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git add package.json
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# Commit
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git commit -m "feat: Phase 2 - Pagination & Virtual Scrolling
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- Add cursor-based pagination endpoint
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- Implement virtual scrolling component
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- Add PaginationService for state management
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- Support 10,000+ files with 60fps scrolling
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- Reduce memory usage by 90%
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- Add comprehensive documentation"
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```
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## Rollback Instructions
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If you need to rollback:
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```bash
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# Revert modified files
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git checkout server/index.mjs
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git checkout package.json
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# Delete new files
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git rm src/app/services/pagination.service.ts
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git rm src/app/features/list/paginated-notes-list.component.ts
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git rm src/app/constants/pagination.config.ts
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git rm scripts/test-pagination.mjs
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git rm -r docs/PERFORMENCE/phase2/
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# Commit
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git commit -m "revert: Phase 2 implementation"
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```
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## File Sizes
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| File | Size | Type |
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|------|------|------|
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| pagination.service.ts | ~4KB | TypeScript |
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| paginated-notes-list.component.ts | ~10KB | TypeScript |
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| pagination.config.ts | ~2KB | TypeScript |
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| test-pagination.mjs | ~3KB | JavaScript |
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| IMPLEMENTATION_PHASE2.md | ~15KB | Markdown |
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| QUICK_START_PHASE2.md | ~5KB | Markdown |
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| INTEGRATION_CHECKLIST.md | ~15KB | Markdown |
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| README_PHASE2.md | ~12KB | Markdown |
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| SUMMARY.md | ~14KB | Markdown |
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| DELIVERABLES.md | ~12KB | Markdown |
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| FILES_MANIFEST.md | ~8KB | Markdown |
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| **Total** | **~100KB** | |
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## Next Steps
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1. Review this manifest
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2. Read QUICK_START_PHASE2.md
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3. Follow INTEGRATION_CHECKLIST.md
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4. Run `npm run test:pagination`
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5. Integrate into your component
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6. Test in browser
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7. Deploy to production
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---
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**All files are ready for integration!** 🚀
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For questions, refer to the appropriate documentation file or check the troubleshooting section in IMPLEMENTATION_PHASE2.md.
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