# Use an official lightweight Python runtime as a parent image
FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

# Copy requirements file first to take advantage of Docker caching
COPY requirements.txt /app/

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

# Copy all project files into the container
COPY . /app

# Hugging Face Spaces requires the container to bind to port 7860.
# The PORT environment variable is automatically set to 7860 by Hugging Face.
# We run Uvicorn, pointing to app:app (Starlette instance)
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]