FROM python:3.10

# Set working directory
WORKDIR /app

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

# Upgrade pip
RUN pip install --upgrade pip

# Copy requirements and install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app.py .

# Create cache directory
RUN mkdir -p /tmp/huggingface_cache && chmod 777 /tmp/huggingface_cache

# Set environment variables
ENV HF_HOME=/tmp/huggingface_cache
ENV TRANSFORMERS_CACHE=/tmp/huggingface_cache
ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

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