FROM python:3.11-slim

# OpenCV (ultralytics' transitive dep) needs libGL + libglib for image decoding.
RUN apt-get update && apt-get install -y --no-install-recommends \
        libgl1 libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /home/user/app

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

COPY . /home/user/app/

# Pre-bake the FastSAM weight (~23 MB) into the image so the first
# /api/sam/point call doesn't pay a one-time network download.
RUN python -c "from ultralytics import FastSAM; FastSAM('FastSAM-s.pt')"

ENV PYTHONUNBUFFERED=1
EXPOSE 7860

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