FROM python:3.11-slim

# Install system dependencies required for diffusers, torch, Pillow, etc.
RUN apt-get update && apt-get install -y \
    git \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user (HF Spaces best practice)
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Copy and install Python dependencies first (better caching)
COPY --chown=user requirements.txt .
RUN python3 -m pip install --upgrade pip
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the app
COPY --chown=user . /app

# Expose port (HF Spaces default)
EXPOSE 7860

# Run FastAPI
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]