FROM node:20-alpine AS base

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

# Dependencies stage
FROM base AS deps
WORKDIR /app
COPY package.json pnpm-lock.yaml* package-lock.json* ./
RUN if [ -f pnpm-lock.yaml ]; then pnpm install --frozen-lockfile; else npm install; fi

# Build stage
FROM base AS builder
WORKDIR /app
COPY . .
RUN rm -rf node_modules .next
COPY --from=deps /app/node_modules ./node_modules
RUN npm run build

# Production stage
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production

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

COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs
EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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