# Phase 2: Dictionary Module - COMPLETED ✅

**Date Completed:** 2026-01-17

## Summary

Phase 2 has been successfully completed. The Dictionary module is now fully functional with browsing, searching, filtering, and detailed term viewing capabilities.

## Deliverables Completed

### Backend Implementation ✅

#### 1. ✅ Term Routes (`/api/terms`)
- **GET /api/terms** - List terms with filtering and pagination
  - Query parameters: `query`, `wordType`, `cefrLevel`, `page`, `limit`
  - Returns paginated results with metadata
  - Full-text search on `wordText` and `normalizedText`
- **GET /api/terms/:id** - Get single term with all related data
  - Includes media and examples
- **Location:** `packages/backend/src/routes/terms.ts`

#### 2. ✅ Static File Serving
- Configured Express to serve uploaded files from `/uploads` directory
- Supports videos, images, and icons
- **Location:** `packages/backend/src/server.ts`

#### 3. ✅ Database Seed Script
- Added 10 sample Croatian sign language terms
- Terms include:
  - Greetings: "Dobar dan", "Hvala", "Molim"
  - Nouns: "Kuća", "Škola", "Voda"
  - Verbs: "Učiti", "Jesti", "Piti"
  - Adjectives: "Lijep"
- Each term has:
  - Word type (NOUN, VERB, ADJECTIVE, etc.)
  - CEFR level (A1-C2)
  - Short description
  - Tags (JSON array)
- **Location:** `packages/backend/prisma/seed.ts`

### Frontend Implementation ✅

#### 1. ✅ Type Definitions
- Created comprehensive TypeScript types for:
  - `Term`, `TermMedia`, `TermExample`
  - `WordType`, `CefrLevel`, `MediaKind` enums
  - `TermFilters`, `TermsResponse` interfaces
- **Location:** `packages/frontend/src/types/term.ts`

#### 2. ✅ API Client
- Created term API client with functions:
  - `fetchTerms(filters)` - Get filtered/paginated terms
  - `fetchTermById(id)` - Get single term details
- **Location:** `packages/frontend/src/lib/termApi.ts`

#### 3. ✅ Dictionary Components

**FilterBar Component**
- Search input with icon
- Word type dropdown (10 types in Croatian)
- CEFR level dropdown (A1-C2 with descriptions)
- Resets pagination on filter change
- **Location:** `packages/frontend/src/components/dictionary/FilterBar.tsx`

**WordCard Component**
- CEFR level badge with color coding:
  - A1/A2: Green
  - B1/B2: Yellow
  - C1/C2: Orange/Red
- Word type label in Croatian
- Icon/image display or placeholder
- Word text and short description
- Action buttons: "Info" and "Dodaj" (Add)
- **Location:** `packages/frontend/src/components/dictionary/WordCard.tsx`

**WordGrid Component**
- Responsive grid layout (1-4 columns)
- Loading state with spinner
- Empty state message
- Pagination controls with:
  - Page info display
  - Previous/Next buttons
  - Disabled state handling
- **Location:** `packages/frontend/src/components/dictionary/WordGrid.tsx`

**WordDetailModal Component**
- Built with shadcn/ui Dialog component
- Displays:
  - Term name and CEFR badge
  - Word type
  - Video player (if available)
  - Image display (fallback)
  - Description
  - Examples with notes
  - Tags as badges
- Actions: "Zatvori" (Close) and "Dodaj u rečenicu" (Add to sentence)
- **Location:** `packages/frontend/src/components/dictionary/WordDetailModal.tsx`

#### 4. ✅ Dictionary Page
- Main page integrating all components
- State management for:
  - Terms list
  - Loading state
  - Selected term for modal
  - Filters and pagination
- Auto-loads terms on filter change
- Placeholder for "Add to sentence" (Phase 3)
- **Location:** `packages/frontend/src/pages/Dictionary.tsx`

#### 5. ✅ Routing
- Updated App.tsx to use Dictionary page
- Route: `/dictionary`
- Protected with authentication
- **Location:** `packages/frontend/src/App.tsx`

#### 6. ✅ shadcn/ui Dialog Component
- Installed and configured dialog component
- Used for WordDetailModal
- Includes overlay and proper accessibility

## Verification Results

### Backend API Tests
```bash
✅ GET /api/terms - Returns 10 terms
✅ Pagination works - Returns correct metadata
✅ Filter by wordType=VERB - Returns 3 verbs
✅ Search query=hvala - Returns 1 result
✅ Static file serving configured
```

### Frontend
```bash
✅ Dictionary page accessible at /dictionary
✅ FilterBar renders with all controls
✅ WordGrid displays terms in responsive grid
✅ WordCard shows CEFR badges and actions
✅ WordDetailModal opens on "Info" click
✅ Pagination controls work
✅ Search and filters update results
```

## Features Implemented

### Search & Filter
- ✅ Free-text search across word text
- ✅ Filter by word type (10 types)
- ✅ Filter by CEFR level (A1-C2)
- ✅ Pagination (20 items per page)
- ✅ Real-time filter updates

### Word Display
- ✅ Grid layout with responsive columns
- ✅ CEFR level color coding
- ✅ Word type labels in Croatian
- ✅ Icon/image display
- ✅ Short descriptions
- ✅ Loading and empty states

### Word Details
- ✅ Modal dialog for detailed view
- ✅ Video player support (ready for videos)
- ✅ Image display
- ✅ Examples with notes
- ✅ Tags display
- ✅ Add to sentence button (placeholder)

## Croatian Localization

All UI text is in Croatian:
- "Rječnik" - Dictionary
- "Pretraži riječi..." - Search words
- "Sve vrste riječi" - All word types
- "Sve razine" - All levels
- "Imenica", "Glagol", etc. - Word types
- "A1 - Početnik" through "C2 - Majstorsko" - CEFR levels
- "Nema pronađenih riječi" - No words found
- "Dodaj u rečenicu" - Add to sentence
- "Zatvori" - Close

## Technical Highlights

### Backend
- Clean RESTful API design
- Proper error handling
- Efficient database queries with Prisma
- Includes related data (media, examples)
- Pagination metadata

### Frontend
- TypeScript for type safety
- Reusable component architecture
- Proper state management
- Responsive design with Tailwind CSS
- Accessible UI with shadcn/ui
- Loading and error states

## Next Steps (Phase 3)

The Dictionary module is complete and ready for Phase 3: Sentence Builder (Znakopis)

**Phase 3 Goals:**
1. Implement Document, DocumentPage, Sentence, SentenceToken models
2. Create sentence builder workspace
3. Implement drag-and-drop token management
4. Connect "Add to sentence" functionality
5. Build document management (save/load)
6. Create multi-page document support

## Commands Reference

```bash
# Run development servers
pnpm dev

# Test API endpoints
curl http://localhost:3000/api/terms
curl "http://localhost:3000/api/terms?wordType=VERB"
curl "http://localhost:3000/api/terms?query=hvala"

# Access Dictionary
http://localhost:5174/dictionary
```

## Screenshots Reference

The implementation matches the original Znakovni.hr design:
- Word cards with CEFR badges
- Filter bar with search and dropdowns
- Grid layout with pagination
- Modal dialogs for word details

---

**Status:** ✅ COMPLETE
**Next Phase:** Phase 3 - Sentence Builder (Znakopis)

