FROM python:3.11-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r /app/requirements.txt

COPY . /app

ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# CPU defaults (override in HF Space Variables if needed)
ENV MODEL_NAME=google/flan-t5-base
ENV MAX_DOWNLOAD_BYTES=250000000
ENV DOWNLOAD_TIMEOUT=60
ENV MAX_RENDER_SECONDS=300
ENV MAX_REPAIR_TRIES=1

CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]