FROM python:3.9

WORKDIR /app

# Install required Python packages
COPY ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy application code
COPY app/ app/

# Create directories for the Hugging Face cache and application data
RUN mkdir -p /app/cache && \
    mkdir -p /app/app/vector_store && \
    mkdir -p /app/app/uploads && \
    mkdir -p /app/app/log_dir && \
    mkdir -p /app/app/models && \
    # Adjust ownership to allow writing
    chown -R nobody:nogroup /app/cache && \
    chown -R nobody:nogroup /app/app

    WORKDIR /app

    RUN mkdir -p app/app/models/models--sentence-transformers--all-MiniLM-L6-v2 && \
        chmod -R 777 app/app/models/models--sentence-transformers--all-MiniLM-L6-v2

# Set environment variable for Hugging Face cache
ENV HF_HOME=/app/cache

# Set to a non-root user
USER nobody

# Define volumes for data persistence
VOLUME /app/app/vector_store
VOLUME /app/app/uploads
VOLUME /app/app/log_dir
VOLUME /app/app/models
VOLUME /app/cache
VOLUME /app/app/models/models--sentence-transformers--all-MiniLM-L6-v2

# Command to run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]