FROM python:3.9-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    libsndfile1 \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies with newer versions
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app.py .

# Create non-root user for security
RUN useradd -m -u 1000 user
USER user

# Expose port (Hugging Face uses 7860)
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

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