# Use official Python image
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd -m -u 1000 user

# Create cache directory with proper permissions
RUN mkdir -p /home/user/.cache/huggingface && \
    chown -R user:user /home/user/.cache

# Set environment variables
ENV PYTHONPATH=/app
ENV PORT=8000
ENV TRANSFORMERS_CACHE=/home/user/.cache/huggingface
ENV HF_HOME=/home/user/.cache/huggingface

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY --chown=user:user . .

# Create necessary directories
RUN mkdir -p src/web && \
    chown -R user:user /app

# Switch to non-root user
USER user

# Expose the FastAPI port
EXPOSE 8000

# Command to run the FastAPI application
CMD ["uvicorn", "src.api.app:app", "--host", "0.0.0.0", "--port", "8000"]