FROM python:3.11-slim

WORKDIR /app

RUN apt-get update && apt-get install -y gcc g++ curl && rm -rf /var/lib/apt/lists/*

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

COPY app/ ./app/
COPY training/ ./training/

RUN mkdir -p /data/artifacts/{models,feedback,reports,metrics}

ENV MODEL_ARTIFACT_DIR=/data/artifacts/models
ENV DATASET_DIR=/data/learning_outcome_os_dataset_v2
ENV LOG_LEVEL=INFO
ENV SEED=20260520

EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/ai/v2/health || exit 1

CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:7860", "--timeout", "120", "app.main:app"]