FROM python:3.12-slim

WORKDIR /app

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    PORT=7860 \
    OUTPUT_DIR=/app/output

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --upgrade pip && \
    pip install -r requirements.txt

# Download spacy model
RUN python -m spacy download en_core_web_sm || true

# Copy application code
COPY . .

# Create output directory
RUN mkdir -p output

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Run the application
CMD ["python", "app.py"]