FROM python:3.11-slim

WORKDIR /app

# System dependencies for OpenCV
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender1 \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Install Python deps
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy app code
COPY . .

# Download model files at build time
RUN python download_models.py

EXPOSE 5000

CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "120", "app:app"]