FROM python:3.10-slim

# Set working directory
WORKDIR /app
COPY . .

# Install system dependencies
RUN apt-get update && apt-get install -y \
    git \
    ffmpeg \
    libsm6 \
    libxext6 \
    g++ \
    build-essential \
    cmake \
    python3-dev \
    wget \
    && rm -rf /var/lib/apt/lists/*

# Upgrade pip
RUN pip install --upgrade pip

# Install PyTorch (CPU build for Hugging Face free tier)
RUN pip install torch==2.0.1+cpu torchvision==0.15.2+cpu --index-url https://download.pytorch.org/whl/cpu

# Install Python deps
RUN pip install -r requirements.txt

# Install Detectron2
RUN pip install 'git+https://github.com/facebookresearch/detectron2.git'

# Clone & install SAM2
RUN git clone https://github.com/facebookresearch/segment-anything-2.git && \
    pip install -e segment-anything-2

# Copy your custom config
COPY sam2.1_hiera_l.yaml /app/sam2.1_hiera_l.yaml

# Install gdown to fetch Google Drive models
RUN pip install gdown

# Download SAM2.1 model weight
RUN gdown --id 1b35mcBfjonS7O5k2RF9xZgtAzCwjn-WE -O /app/sam2.1_hiera_large.pt

# Expose FastAPI port
EXPOSE 7860

# Start FastAPI app

CMD ["uvicorn", "app3:app", "--host", "0.0.0.0", "--port", "7860"]