# Base image
FROM python:3.11-slim

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

# Set working directory
WORKDIR /app

# System dependencies (minimal set)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
 && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir --upgrade pip \
 && pip install --no-cache-dir -r /app/requirements.txt

# Copy application code
COPY . /app

# Hugging Face Spaces uses port 7860 by default
ENV PORT=7860
EXPOSE 7860

# Start FastAPI app
CMD ["bash", "-lc", "python -m uvicorn app:app --host 0.0.0.0 --port ${PORT}"]