# Stage 1: Build Frontend
FROM node:22-alpine AS builder

WORKDIR /app

COPY package.json ./
# In a real scenario, copy package-lock.json too
# COPY package-lock.json ./

RUN npm install

COPY . .

RUN npm run build

# Stage 2: Production Runtime
FROM node:22-alpine

WORKDIR /app

ENV NODE_ENV=production

COPY package.json ./
COPY backend/package.json ./backend/

# Install dependencies (including production deps for backend)
RUN npm install --omit=dev

# Copy backend source
COPY backend/ ./backend/

# Copy built frontend from builder stage
COPY --from=builder /app/dist ./dist

EXPOSE 3001

CMD ["node", "backend/index.js"]