FROM node:18-alpine AS base

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

# Copy package.json and package-lock.json
COPY package.json package-lock.json* ./

# Install dependencies
RUN npm ci

# Rebuild the source code only when needed
FROM base 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 to disable telemetry during the build.
ENV NEXT_TELEMETRY_DISABLED 1

# Build the application
RUN npm run build

# 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 --from=builder /app/dist ./dist
COPY --from=builder /app/public ./public
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/next.config.js ./next.config.js

# Set the correct permission for prerender cache
RUN mkdir .next
RUN chown nextjs:nodejs .next

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:nodejs /app/dist/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/dist/static ./dist/static

USER nextjs

EXPOSE 3000

ENV PORT 3000

# Start the application
CMD ["node", "server.js"]