# Build stage for React frontend
FROM node:20-alpine AS frontend-builder

WORKDIR /frontend
COPY frontend/package*.json ./
RUN npm install

COPY frontend/ ./
RUN npm run build

# Production stage
FROM python:3.11-slim

WORKDIR /app

# Install system dependencies (incl. Tesseract OCR for bounding-box extraction)
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    tesseract-ocr \
    tesseract-ocr-deu \
    tesseract-ocr-eng \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY backend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY backend/ ./

# Copy built frontend to the expected path
COPY --from=frontend-builder /frontend/dist ./frontend/dist

# Create uploads directory
RUN mkdir -p /app/uploads

# Expose port
EXPOSE 8086

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8086/health || exit 1

# Run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8086"]