# Use official Python 3.11 slim image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PORT=7860

# Install dependencies first (cached layer)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy project files
COPY . .

# Expose port 7860 (required by Hugging Face Spaces)
EXPOSE 7860

# Start the app with gunicorn
CMD ["gunicorn", "app:app", "--bind", "0.0.0.0:7860", "--workers", "1", "--timeout", "120", "--log-level", "info"]