FROM node:22-bookworm-slim AS base
RUN corepack enable;


# Install dependencies only when needed
FROM base AS deps
WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json yarn.lock* .yarnrc.yml package-lock.json* pnpm-lock.yaml* ./
RUN \
  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
  elif [ -f package-lock.json ]; then npm ci; \
  elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm i --frozen-lockfile; \
  else echo "Lockfile not found." && exit 1; \
  fi


# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

ARG NEXT_PUBLIC_SERVER_URL
ARG NEXT_PUBLIC_SITE_ID
ENV NEXT_PUBLIC_SERVER_URL=$NEXT_PUBLIC_SERVER_URL
ENV NEXT_PUBLIC_SITE_ID=$NEXT_PUBLIC_SITE_ID

# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry during the build.
# ENV NEXT_TELEMETRY_DISABLED 1

RUN \
  if [ -f yarn.lock ]; then yarn run build; \
  elif [ -f package-lock.json ]; then npm run build; \
  elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm run build; \
  else echo "Lockfile not found." && exit 1; \
  fi

# 3. Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production

# Use groupadd and useradd (standard Linux tools) instead of Alpine's syntax
RUN groupadd --gid 1001 nodejs
RUN useradd --uid 1001 --gid nodejs --shell /bin/bash --create-home nextjs

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
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

CMD HOSTNAME="0.0.0.0" node server.js