# --------------------------
# 1. FRONTEND BUILD STAGE
# --------------------------
FROM node:18 AS frontend-builder

WORKDIR /app

# Copy package manifests from repo root
COPY package.json package-lock.json ./

# Install dependencies
RUN npm install

# Copy full repo (needed for Vite config + frontend/src + public)
COPY . .

# Build the Vite frontend (outputs to /app/frontend/dist)
RUN npm run build


# --------------------------
# 2. PYTHON BACKEND STAGE
# --------------------------
FROM python:3.10

WORKDIR /app

# Backend code
COPY backend/ ./backend/

# Python engine
COPY python_engine/ ./python_engine/

# Tree data
COPY tree_data/ ./tree_data/

# Copy Vite public folder (needed for /static mount)
RUN mkdir -p frontend/public
COPY frontend/public ./frontend/public

# Copy Vite build output
RUN mkdir -p frontend/dist
COPY --from=frontend-builder /app/frontend/dist ./frontend/dist

# Install Python dependencies
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt
# NLTK needs tokenizer data
RUN python -m nltk.downloader punkt
RUN python -m nltk.downloader punkt_tab

ENV PORT=7860
EXPOSE 7860

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