# Celery worker: OCR queue only (no Manim / LaTeX / Cairo stack).
FROM python:3.11-slim-bookworm

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_ROOT_USER_ACTION=ignore \
    NO_ALBUMENTATIONS_UPDATE=1 \
    OMP_NUM_THREADS=1 \
    MKL_NUM_THREADS=1 \
    OPENBLAS_NUM_THREADS=1

WORKDIR /app
ENV PYTHONPATH=/app

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    cmake \
    pkg-config \
    python3-dev \
    libglib2.0-0 \
    libgomp1 \
    libgl1 \
    libsm6 \
    libxext6 \
    libxrender1 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.worker-ocr.txt .
RUN pip install --upgrade pip setuptools wheel \
    && pip install -r requirements.worker-ocr.txt

COPY . .

RUN python scripts/prewarm_ocr_worker.py

ENV PORT=7860 \
    CELERY_WORKER_QUEUES=ocr
EXPOSE 7860

ENTRYPOINT []
CMD ["sh", "-c", "exec python3 -u worker_health.py"]