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

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file into the container
COPY requirements.txt .

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

# Copy the rest of the backend source code
COPY . .

# Expose the Hugging Face Space default port
EXPOSE 7860

# Run the FastAPI server using Uvicorn
# Cloud Run sets the PORT environment variable automatically, but HF Spaces defaults to 7860
CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT:-7860}"]