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

# Set the working directory
WORKDIR /app

# Copy only requirements first to leverage Docker caching
COPY requirements.txt /app/

# Install dependencies before copying the full application
RUN pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application files
COPY . /app

# Expose the Flask port (Hugging Face Spaces uses port 7860 by default)
EXPOSE 7860

# Command to run the Flask app
CMD ["python", "app.py"]