feat: Add OCR integration for automatic receipt data extraction

Implement Tesseract-based OCR to automatically extract vendor name,
date, total amount, and VAT from uploaded receipt images/PDFs,
reducing manual data entry and improving accuracy.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
2025-12-12 11:48:29 +02:00
parent 5960154094
commit 41ae97180e
16 changed files with 2773 additions and 32 deletions

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# Data Entry App - Bonuri Fiscale
Aplicatie pentru introducere bonuri fiscale cu workflow de aprobare.
Aplicatie pentru introducere bonuri fiscale cu workflow de aprobare si extragere automata date prin OCR.
## Quick Start
@@ -10,7 +10,27 @@ Aplicatie pentru introducere bonuri fiscale cu workflow de aprobare.
- Node.js 18+
- (Optional) SSH tunnel pentru Oracle nomenclatoare
### Backend Setup
### Using Start Script (Recommended)
```bash
# Start all services
./start-data-entry.sh
# Or individual commands:
./start-data-entry.sh start # Start all
./start-data-entry.sh stop # Stop all
./start-data-entry.sh status # Check status
./start-data-entry.sh restart backend # Restart backend only
```
**Services:**
- Backend: http://localhost:8003
- Frontend: http://localhost:3010
- API Docs: http://localhost:8003/docs
### Manual Setup
#### Backend Setup
```bash
cd data-entry-app/backend
@@ -34,7 +54,7 @@ alembic upgrade head
uvicorn app.main:app --reload --port 8003
```
### Frontend Setup
#### Frontend Setup
```bash
cd data-entry-app/frontend
@@ -46,15 +66,10 @@ npm install
npm run dev -- --port 3010
```
### Access
- **Backend API**: http://localhost:8003
- **API Docs**: http://localhost:8003/docs
- **Frontend**: http://localhost:3010
## Features
### Pentru Utilizatori
- **OCR Automat** - Extragere automata date din poza bonului (suma, data, furnizor, CUI)
- Upload poze bonuri fiscale
- Completare date bon (suma, data, furnizor)
- Selectie tip cheltuiala
@@ -66,13 +81,75 @@ npm run dev -- --port 3010
- Aprobare/Respingere bonuri
- Aprobare in masa
## OCR Feature
### Cum functioneaza
1. **Upload imagine** - Trage sau selecteaza poza bonului
2. **Procesare OCR** - Click pe "Proceseaza cu OCR"
3. **Previzualizare** - Datele extrase sunt afisate cu indicatori de incredere
4. **Aplicare** - Click "Aplica datele in formular" pentru auto-fill
### Campuri extrase automat
| Camp | Acuratete estimata |
|------|-------------------|
| Suma (TOTAL) | 90-95% |
| Data | 85-90% |
| Numar bon | 80-85% |
| Furnizor | 70-80% |
| CUI | 85-90% |
| Tip document | 95%+ |
### OCR System Dependencies (Linux/Docker)
Pentru functionarea OCR trebuie instalate:
```bash
# Ubuntu/Debian
apt-get install -y \
tesseract-ocr \
tesseract-ocr-ron \
tesseract-ocr-eng \
poppler-utils \
libgl1-mesa-glx \
libglib2.0-0
# Fedora/RHEL
dnf install -y \
tesseract \
tesseract-langpack-ron \
tesseract-langpack-eng \
poppler-utils
```
**Note:** PaddleOCR (engine principal) se instaleaza automat cu pip. Tesseract este folosit ca fallback.
### OCR API Endpoints
| Method | Endpoint | Description |
|--------|----------|-------------|
| GET | /api/ocr/status | Check OCR service status |
| POST | /api/ocr/extract | Extract data from uploaded image |
| POST | /api/ocr/extract-attachment/{id} | Re-process existing attachment |
### Test OCR
```bash
# Check OCR status
curl http://localhost:8003/api/ocr/status
# Extract from image
curl -X POST -F "file=@bon.jpg" http://localhost:8003/api/ocr/extract
```
## Workflow
```
DRAFT → PENDING_REVIEW → APPROVED/REJECTED → (SYNCED in Oracle)
```
1. **DRAFT**: Utilizator completeaza datele
1. **DRAFT**: Utilizator completeaza datele (manual sau via OCR)
2. **PENDING_REVIEW**: Sistemul genereaza note contabile automat
3. **APPROVED**: Contabil a aprobat bonul
4. **REJECTED**: Contabil a respins (utilizatorul poate corecta)
@@ -90,8 +167,16 @@ data-entry-app/
│ │ │ ├── models/ # SQLModel models
│ │ │ └── crud/ # CRUD operations
│ │ ├── schemas/ # Pydantic schemas
│ │ ├── services/ # Business logic
│ │ ── routers/ # API endpoints
│ │ │ └── ocr.py # OCR response schemas
│ │ ── services/
│ │ │ ├── receipt_service.py
│ │ │ ├── ocr_service.py # OCR orchestration
│ │ │ ├── ocr_engine.py # PaddleOCR/Tesseract
│ │ │ ├── ocr_extractor.py # Regex patterns RO
│ │ │ └── image_preprocessor.py # OpenCV pipeline
│ │ └── routers/
│ │ ├── receipts.py
│ │ └── ocr.py # OCR endpoints
│ ├── migrations/ # Alembic migrations
│ ├── data/
│ │ ├── receipts.db # SQLite database
@@ -101,7 +186,12 @@ data-entry-app/
├── frontend/
│ ├── src/
│ │ ├── views/receipts/ # Page components
│ │ ├── components/receipts/ # Reusable components
│ │ ├── components/
│ │ │ ├── receipts/ # Receipt components
│ │ │ └── ocr/ # OCR components
│ │ │ ├── OCRUploadZone.vue
│ │ │ ├── OCRPreview.vue
│ │ │ └── OCRConfidenceIndicator.vue
│ │ ├── stores/ # Pinia stores
│ │ └── router/ # Vue Router
│ ├── package.json
@@ -169,6 +259,23 @@ Full API documentation available at http://localhost:8003/docs when backend is r
| POST | /api/receipts/{id}/approve | Approve receipt |
| POST | /api/receipts/{id}/reject | Reject receipt |
| POST | /api/receipts/{id}/attachments | Upload attachment |
| GET | /api/ocr/status | OCR service status |
| POST | /api/ocr/extract | OCR image extraction |
## Troubleshooting
### OCR not working
1. Check OCR status: `curl http://localhost:8003/api/ocr/status`
2. Install system dependencies (tesseract, poppler)
3. Verify PaddleOCR installed: `python -c "from paddleocr import PaddleOCR"`
### Low OCR accuracy
- Ensure good lighting when taking receipt photos
- Keep receipt flat (no folds/wrinkles)
- Try PDF instead of JPG for scanned documents
- Check if text is in focus
## Phase 2 (Future)