FROM python:3.9

ENV PYTHONUNBUFFERED=1

WORKDIR /code

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    git \
    curl \
    cmake \
    ninja-build \
    libopenblas-dev \
    && useradd -m appuser \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy all source code (app.py and related files)
COPY . /code

# Create models and cache directories and set correct ownership
RUN mkdir -p /code/models/.cache/huggingface && \
    chown -R appuser:appuser /code

# Set environment variables
ENV HOST=0.0.0.0
ENV PORT=7860

# Expose the FastAPI port
EXPOSE 7860

# Switch to non-root user
USER appuser

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