# Stage 1: Install dependencies
FROM node:20-alpine AS deps
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
COPY package.json pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile --prod=false

# Stage 2: Build the application
FROM node:20-alpine AS builder
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
ENV SKIP_ENV_VALIDATION=1
RUN pnpm build

# Stage 3: Production runner
FROM node:20-alpine AS runner
RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 nextjs
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/dist/server.js ./server-custom.js
USER nextjs
EXPOSE 3000
CMD ["node", "server-custom.js"]