# Install dependencies only when needed
FROM node:lts-alpine AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat curl
WORKDIR /app

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


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

# 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 CI=true  yarn build

# If using npm comment out above and use below instead
# RUN npm run build

# Production image, copy all the files and run next
FROM node:lts-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
# Uncomment the following line in case you want to disable telemetry during runtime.
# ENV NEXT_TELEMETRY_DISABLED 1

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

COPY --from=builder /app/public ./public

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

FROM node:20-slim AS base
RUN apt-get update && \
    apt-get install ca-certificates curl libjemalloc-dev -y --no-install-recommends  && \
    rm -rf /var/lib/apt/lists/*
# set environment variable to preload JEMalloc
ENV LD_PRELOAD="/usr/lib/x86_64-linux-gnu/libjemalloc.so.2"
# set GC time, set arenas number, set background_thread run GC
ENV MALLOC_CONF=dirty_decay_ms:1000,narenas:2,background_thread:true
ENV PNPM_HOME="/pnpm"
ENV PATH="$PNPM_HOME:$PATH"
RUN corepack enable
COPY . /app
WORKDIR /app

FROM base AS build
RUN --mount=type=cache,id=pnpm,target=/pnpm/store  pnpm i --frozen-lockfile
RUN CI=true  pnpm build

FROM base
COPY --from=build /app/.next/standalone ./
COPY --from=build /app/public ./public
COPY --from=build /app/.next/static ./.next/static
EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"
CMD ["node", "server.js"]