# Use a lightweight official Python image
FROM python:3.10-slim

# Prevent Python from writing .pyc files and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set the working directory
WORKDIR /app

# System dependencies (if you need more, add them here)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy dependency file first (for better layer caching)
COPY requirements.txt .

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

# Copy the rest of the app
COPY . .

# Hugging Face Spaces expects the server to listen on $PORT
ENV PORT=7860

# Expose the same port (for local dev and clarity)
EXPOSE 7860

# Start the app
# If your main file is not app.py, change this line accordingly
CMD ["python", "app.py"]