# Use an official Python runtime as a parent image
FROM python:3.11-slim

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file into the container at /app
COPY requirements.txt .

# Install any needed packages specified in requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application's code into the container at /app
COPY . .

# Make port 7860 available to the world outside this container
# Hugging Face Spaces uses this port by default
EXPOSE 7860

# Define environment variable for the port
ENV PORT=7860

# Run app.py when the container launches using Gunicorn
# Gunicorn is a production-ready web server.
# We bind to 0.0.0.0 to allow external connections.
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "app:app"]