FROM python:3.10-slim

WORKDIR /code

RUN apt-get update && apt-get install -y \
    libgl1 \
    libglx-mesa0 \
    libglib2.0-0 \
    git \
    && rm -rf /var/lib/apt/lists/*

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

# Create cache dirs with open permissions BEFORE preloading
RUN mkdir -p /tmp/torch_cache /tmp/ultralytics_config \
    && chmod -R 777 /tmp/torch_cache /tmp/ultralytics_config

ENV TORCH_HOME=/tmp/torch_cache
ENV YOLO_CONFIG_DIR=/tmp/ultralytics_config

# Copy files (including preload script)
COPY . .

# Pre-download MiDaS at build time — no interactive prompt possible here
RUN python preload_models.py

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