FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PORT=7860

WORKDIR /app

# System libs for audio and ML dependencies.
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    ffmpeg \
    libsndfile1 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
    pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 7860

CMD ["sh", "-c", "uvicorn app.hf_space:app --host 0.0.0.0 --port ${PORT:-7860}"]