Dockerfile

# Use slim Python image
FROM python:3.10-slim

# Avoid prompts from apt
ENV DEBIAN_FRONTEND=noninteractive

# System deps for librosa/soundfile/matplotlib and audio
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    ffmpeg \
    libsndfile1 \
    libgl1 \
    libsm6 \
    libxext6 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy only requirements first for better caching
COPY requirements.txt ./
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app.py ./
COPY src ./src

# Streamlit config for Spaces (expects port 7860)
ENV STREAMLIT_SERVER_PORT=7860 \
    STREAMLIT_SERVER_HEADLESS=true \
    STREAMLIT_BROWSER_GATHER_USAGE_STATS=false

EXPOSE 7860

CMD ["streamlit", "run", "app.py", "--server.port", "7860", "--server.address", "0.0.0.0"]