FROM node:18-alpine AS base

WORKDIR /app

FROM base AS deps
COPY package.json package-lock.json* yarn.lock* pnpm-lock.yaml* ./
RUN \
  if [ -f package-lock.json ]; then npm ci; \
  elif [ -f yarn.lock ]; then yarn install --frozen-lockfile; \
  elif [ -f pnpm-lock.yaml ]; then npm install -g pnpm && pnpm install --frozen-lockfile; \
  else echo "No lockfile found." && npm install; \
  fi

FROM base AS builder
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

FROM base AS runner
ENV NODE_ENV=production

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

WORKDIR /app

COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

USER nextjs

EXPOSE 3000
CMD ["npm", "start"]