# Use an official Python runtime as a parent image
FROM python:3.9-slim

# Install git and git-lfs
RUN apt-get update && apt-get install -y git git-lfs && git lfs install

# Create a non-root user 'appuser'
RUN useradd -ms /bin/bash appuser

# Set the working directory
WORKDIR /home/appuser/app

# Copy requirements file
COPY requirements.txt .

# Install required packages
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Set environment variables for cache directories
ENV HF_HOME=/home/appuser/app/.cache
ENV HF_DATASETS_CACHE=/home/appuser/app/.cache

# Create the cache directory
RUN mkdir -p /home/appuser/app/.cache

# Change ownership of the application files
RUN chown -R appuser:appuser /home/appuser/app

# Switch to non-root user
USER appuser

# Pre-download models and datasets
RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('all-MiniLM-L6-v2')"
RUN python -c "from datasets import load_dataset; load_dataset('Gustavosta/Stable-Diffusion-Prompts')"

# Expose port 7860
EXPOSE 7860

# Command to run the API
CMD ["uvicorn", "api:app", "--host", "0.0.0.0", "--port", "7860"]