FROM python:3.10-slim

# Bust the cache when you change this number:
ARG CACHEBUST=2

# Minimal system libs (glib needed by many wheels; libgl fixes GUI builds if they ever slip in)
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 libglib2.0-0 libsm6 libxext6 libxrender1 && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /code

COPY requirements.txt .

# Clean install: upgrade tools, remove any GUI OpenCV if cached, then install headless deps
RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
    pip uninstall -y opencv-python opencv-contrib-python || true && \
    pip install --no-cache-dir -r requirements.txt

COPY app ./app

RUN mkdir -p /code/app/static/processed

ENV PORT=7860

CMD ["bash","-lc","python -m uvicorn app.main:app --host 0.0.0.0 --port $PORT"]