FROM python:3.10

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

RUN useradd -m -u 1000 user
WORKDIR /home/user/app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    ffmpeg \
    libsndfile1 \
    cmake \
    g++ \
    git \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Install build tools manually to ensure they are available for youtokentome
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir \
        Cython \
        packaging \
        setuptools \
        wheel

# Install youtokentome without isolation for NeMo compatibility
RUN pip install --no-cache-dir --no-build-isolation youtokentome

# Copy requirements and install
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy everything else
COPY --chown=user . .

# Permissions
RUN chmod 777 /home/user/app

USER user
EXPOSE 7860

CMD ["python", "app.py"]