# ── Stage 1: Build React frontend ────────────────────────────────────────────
FROM node:18-alpine AS frontend-build

WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# ── Stage 2: Flask + Gunicorn production image ────────────────────────────────
FROM python:3.12-slim

WORKDIR /app

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

COPY backend/ ./

# Copy compiled React build into Flask static folder
COPY --from=frontend-build /app/frontend/dist ./app/static

# Persistent data directory for SQLite
RUN mkdir -p /app/data

EXPOSE 8080

CMD ["gunicorn", "--bind", "0.0.0.0:8080", "--workers", "2", "--timeout", "120", "run:app"]