FROM python:3.10-slim

# Install system dependencies needed for building C++ extensions
RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Upgrade pip first to handle modern wheels
RUN pip install --no-cache-dir --upgrade pip

COPY requirements.txt .

# Use the pre-built CPU wheels to avoid long compilation times
RUN pip install --no-cache-dir llama-cpp-python \
    --extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cpu

RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 7860

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