# Use a slim, official Python 3.11 image as the base
FROM python:3.11-slim

# Set environment variables to prevent Python from writing .pyc files
# and to ensure stdout/stderr are unbuffered (important for logs)
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set the working directory inside the container
WORKDIR /app

# Copy only requirements first to leverage Docker layer caching.
# If requirements don't change, this layer won't be rebuilt.
COPY requirements.txt .

# Install dependencies
# --no-cache-dir keeps the image smaller
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application source code into the container
COPY . .

# Expose port 7860 — Hugging Face Spaces expects this port
EXPOSE 7860

# The command to run when the container starts
CMD ["python", "main.py"]