# Build stage
FROM node:20-alpine AS builder

WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci

COPY . .
RUN npm run build

# Runtime stage
FROM node:20-alpine

WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci --omit=dev

COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public

EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD node -e "require('http').get('http://localhost:3000', (res) => { if (res.statusCode !== 200) { throw new Error('Status ' + res.statusCode); } }).on('error', (err) => { throw err; });"

CMD ["npm", "start"]