FROM python:3.10-slim

WORKDIR /app

# Install system dependencies
# build-essential is needed for some Python packages with C extensions
# curl is needed for the health check
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    curl \
    # Clean up apt cache to reduce image size
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy application code
COPY . .

# Create uploads directory (although not strictly needed for this version as files are not saved locally)
# RUN mkdir -p /app/uploads

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV FLASK_APP=app.py

# Expose the port
EXPOSE 7860

# Health check - checks if the /health endpoint returns a 200 status code
HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Run the application using Python directly (Flask's development server)
# In production, consider a WSGI server like Gunicorn
CMD ["python", "app.py"]