# Stage 1: Build the React Application
FROM node:20-alpine AS builder

WORKDIR /app

# Install dependencies
COPY package*.json ./
RUN npm ci

# Copy source and build
COPY . .
RUN npm run build

# Stage 2: Serve with Node.js
FROM node:20-alpine

WORKDIR /app

# Copy package.json and install ONLY production dependencies
COPY package*.json ./
RUN npm ci --omit=dev

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

# Copy server code
COPY server.js ./

# Expose port
EXPOSE 3000

# Start server
CMD ["npm", "start"]