FROM python:3.11-slim

WORKDIR /app

RUN apt-get update && apt-get install -y \
    git curl build-essential \
    && rm -rf /var/lib/apt/lists/*

# Install PyTorch CPU-only first (much smaller, ~500MB vs 2GB)
# ZeroGPU injects CUDA at runtime — no need for CUDA torch at build time
RUN pip install --no-cache-dir \
    torch==2.2.1 --index-url https://download.pytorch.org/whl/cpu

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

COPY . .

RUN mkdir -p /data

ENV PYTHONUNBUFFERED=1

EXPOSE 7860

CMD ["python", "app.py"]