# Use Python 3.11 slim image for better performance
FROM python:3.11-slim

# Set working directory
WORKDIR /app

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

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

# Install Python dependencies with NumPy compatibility fix
RUN pip install --no-cache-dir "numpy<2.0.0" && \
    pip install --no-cache-dir -r requirements.txt

# Set environment variables for optimal performance
ENV WHISPER_MODEL=tiny
ENV MODEL_PRELOAD=true
ENV DEBUG=false
ENV PYTHONUNBUFFERED=1

# Copy application code
COPY . .

# Create non-root user for security
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:8000/health')"

# Run the application with robust startup
CMD ["python", "start_robust.py"]