# Use official Python runtime as base image
FROM python:3.11-slim

# Set working directory in container
WORKDIR /app

# Copy requirements file
COPY requirements.txt .

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

# Copy application code
COPY app.py .

# Expose port 7860
EXPOSE 7860

# Set environment variables (can be overridden at runtime)
ENV PYTHONUNBUFFERED=1
ENV FLASK_APP=app.py

# Run the application with gunicorn for production
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "4", "app:app"]