FROM python:3.11-slim

# CRITICAL: espeak-ng required for KittenTTS phonemization
RUN apt-get update && apt-get install -y --no-install-recommends \
    espeak-ng \
    libsndfile1 \
    ffmpeg \
    git \
    && rm -rf /var/lib/apt/lists/*

# HF Spaces requires uid 1000
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"
ENV HF_HOME="/home/user/.cache/huggingface"

WORKDIR /home/user/app

COPY --chown=user:user requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

COPY --chown=user:user . .

EXPOSE 7860

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