FROM node:22-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package.json pnpm-lock.yaml* ./
RUN corepack enable pnpm && pnpm install --frozen-lockfile

# Build the app
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ARG BACKEND_INTERNAL_URL=http://backend:8000
ENV BACKEND_INTERNAL_URL=$BACKEND_INTERNAL_URL
RUN corepack enable pnpm && pnpm build

# Production runner
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 5646
ENV PORT=5646
ENV HOSTNAME="0.0.0.0"

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