FROM python:3.9-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PORT=7860 \
    TRANSFORMERS_CACHE=/tmp/huggingface

# Set the working directory
WORKDIR /code

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

# Create cache directory with proper permissions
RUN mkdir -p /tmp/huggingface && chmod 777 /tmp/huggingface

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

# Copy the application
COPY ./app /code/app

# Make port 7860 available
EXPOSE 7860

# Create a non-root user and switch to it
RUN adduser --disabled-password --gecos "" appuser && \
    chown -R appuser:appuser /code /tmp/huggingface
USER appuser

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]