FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm ci
COPY frontend .
RUN npm run build

FROM python:3.11-slim AS runtime
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PORT=7860 \
    MSAI_ROOT=/app/MSAI_Text_Generation \
    VANILLA_CHECKPOINT=/app/models/best.pt \
    VANILLA_TOKENIZER=/app/models/tokenizer \
    VANILLA_DEVICE=auto
WORKDIR /app

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

COPY backend backend
COPY Archive Archive
COPY models models
COPY MSAI_Text_Generation MSAI_Text_Generation
COPY scripts scripts
COPY README.md README.md
COPY --from=frontend-builder /app/frontend/dist frontend/dist

EXPOSE 7860

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