# Multi-stage build for Next.js
FROM node:20-slim AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./
RUN npm ci --prefer-offline --no-audit

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

# Production stage
FROM node:20-slim AS runner

WORKDIR /app

ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME=0.0.0.0

# Copy necessary files from builder
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static

EXPOSE 3000

CMD ["node", "server.js"]