# Start with the official Python 3.11 image
FROM python:3.11

# Set the working directory inside the container
WORKDIR /app

# Install system dependencies needed to build wheels for libraries like llama-cpp-python
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    cmake \
    && rm -rf /var/lib/apt/lists/*

# Copy the requirements file first and install dependencies
COPY requirements.txt requirements.txt

# Tell llama-cpp-python to build itself during installation
ENV CMAKE_ARGS="-DLLAMA_CUBLAS=OFF -DLLAMA_HIPBLAS=OFF -DLLAMA_METAL=OFF"
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy the rest of your application code
COPY . .

# Expose the port the app will run on (Hugging Face uses 7860)
EXPOSE 7860

# ✅ THE FINAL FIX IS HERE
# Run the command inside a shell to allow environment variable expansion
CMD ["/bin/sh", "-c", "uvicorn api.main:app --host 0.0.0.0 --port ${PORT:-7860}"]