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FROM python:3.9-slim

# Create required user
RUN useradd -m -u 1000 user
USER user

# Set environment
ENV PATH="/home/user/.local/bin:$PATH" \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1

WORKDIR /app

# Install system dependencies (as root, then switch back)
USER root
RUN apt-get update && apt-get install -y \
    ffmpeg \
    libsndfile1 \
    && rm -rf /var/lib/apt/lists/*
USER user

# Copy requirements first (better caching)
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy application
COPY --chown=user app.py .

# Hugging Face requires port 7860
ENV PORT=7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl apt-get -f http://localhost:${PORT}/health || exit 1

# Run the application
CMD uvicorn app:app --host 0.0.0.0 --port ${PORT}