FROM python:3.12-slim

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

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    espeak-ng \
    libespeak-ng1 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

COPY tts_engine.py ./tts_engine.py
COPY app.py ./app.py
COPY templates ./templates
COPY static ./static

RUN mkdir -p /app/generated

EXPOSE 7860

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