# Stage 1: Dependencies
FROM node:22-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm ci

# Stage 2: Builder
FROM node:22-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NODE_ENV=production
RUN npm run build

# Stage 3: Runner
FROM node:22-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV PORT=3000

RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public
COPY --from=builder /app/package.json ./package.json
COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules

USER nextjs

EXPOSE 3000

CMD ["npm", "run", "start"]