# syntax=docker.io/docker/dockerfile:1

FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
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 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 . .

# Disable telemetry during the build
ENV NEXT_TELEMETRY_DISABLED 1

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

# Verify the standalone directory exists
RUN ls -la .next/standalone || (echo "Standalone directory not found" && exit 1)

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

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

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

# Copy necessary files
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

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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