FROM python:3.10-slim-bookworm

RUN useradd -m -u 1000 user
WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
        curl git ffmpeg libsndfile1 unzip build-essential pkg-config \
    && rm -rf /var/lib/apt/lists/*

# torch CPU 2.4 (seed-vc uses 2.4)
RUN pip install --no-cache-dir \
        torch==2.4.0 torchaudio==2.4.0 torchvision==0.19.0 \
        --index-url https://download.pytorch.org/whl/cpu

# seed-vc — clone, pin commit, install runtime deps subset (CPU-only, no GUI/training).
ENV SEEDVC_COMMIT=51383efd921027683c89e5348211d93ff12ac2a8
RUN git clone https://github.com/Plachtaa/seed-vc.git /opt/seed-vc \
    && cd /opt/seed-vc && git checkout $SEEDVC_COMMIT \
    && mkdir -p /opt/seed-vc/checkpoints \
    && chown -R user:user /opt/seed-vc

RUN pip install --no-cache-dir \
        scipy==1.13.1 \
        librosa==0.10.2 \
        huggingface-hub>=0.28.1 \
        munch==4.0.0 \
        einops==0.8.0 \
        descript-audio-codec==1.0.0 \
        pydub==0.25.1 \
        resemblyzer \
        transformers==4.46.3 \
        soundfile==0.12.1 \
        numpy==1.26.4 \
        hydra-core==1.3.2 \
        pyyaml \
        python-dotenv \
        nltk \
        omegaconf

# Our service deps (fastapi/uvicorn/httpx/pydantic).
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY app/ ./app/
RUN mkdir -p /app/.cache/huggingface && chown -R user:user /app

USER user

ENV HOST=0.0.0.0
ENV PORT=7860
ENV VC_API_TOKEN=
ENV HF_HOME=/app/.cache/huggingface
ENV SEEDVC_DIR=/opt/seed-vc
# CPU-only: BigVGAN CUDA kernel + fp16 autocast 비활성.
ENV CUDA_VISIBLE_DEVICES=""

EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]