# --- Base image ---
FROM node:22-alpine AS base
WORKDIR /app
ENV NEXT_TELEMETRY_DISABLED=1

# --- Install dependencies ---
FROM base AS deps
COPY package.json package-lock.json* ./
RUN npm ci

# --- Build the Next.js app ---
FROM base AS builder
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

# --- Production runtime ---
FROM node:22-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production

# Create non-root user
RUN addgroup -g 1001 nodejs \
    && adduser -u 1001 -G nodejs -s /bin/sh -D nextjs

# Copy only what is needed for runtime
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./next/static
COPY --from=builder /app/public ./public

USER nextjs

EXPOSE 3000
CMD ["node", "server.js"]