FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies required for OpenCV and building python packages
RUN apt-get update && apt-get install -y \
    ffmpeg \
    libsm6 \
    libxext6 \
    git \
    g++ \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Install PyTorch first because GroundingDINO compilation requires it to be already installed
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir torch torchvision torchaudio setuptools wheel cython

# Install GroundingDINO without build isolation so it can see the installed torch
RUN pip install --no-cache-dir --no-build-isolation git+https://github.com/IDEA-Research/GroundingDINO.git

# Install SAM 2
RUN pip install --no-cache-dir git+https://github.com/facebookresearch/segment-anything-2.git

# Copy requirements and install them
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Hugging Face Spaces requires apps to run as a non-root user
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# Switch to the user's home directory
WORKDIR $HOME/app

# Copy the rest of the application files and assign ownership to the new user
COPY --chown=user . $HOME/app

# Expose the Gradio default port
EXPOSE 7860

# Command to run the application
CMD ["python", "app.py"]