FROM python:3.10-slim

# System deps for Whisper (ffmpeg) and general build
RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install Python deps first (layer cache)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy source
COPY . .

# Create cache dirs
RUN mkdir -p .cache/transcriptions .cache/extractions

# Expose Hugging Face Spaces default port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
    CMD python -c "import httpx; httpx.get('http://localhost:7860/health').raise_for_status()"

CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]