# Use slim Python base image
FROM python:3.10-slim

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 version first
RUN pip install torch==2.0.1+cpu torchvision==0.15.2+cpu torchaudio==2.0.2+cpu --index-url https://download.pytorch.org/whl/cpu

# Force refresh of pip environment (fixes torch visibility)
RUN python -c "import torch; print('Torch imported OK')"

# 🧩 Install other dependencies
RUN pip install -r requirements.txt

# 🧱 Clone and install Detectron2
RUN git clone https://github.com/facebookresearch/detectron2.git /app/detectron2
RUN pip install --no-cache-dir -e /app/detectron2

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