# Frontend image for Next.js (dev server + standalone production runner)

# Dependency + build stage for production
FROM node:22-bookworm-slim AS builder
WORKDIR /app
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1

# Install dependencies first for better Docker layer caching
COPY package*.json ./
RUN npm ci --ignore-scripts

# Copy full source and build standalone output
COPY . .
RUN npm run build

# Dev image keeps the toolchain for next dev
FROM node:22-bookworm-slim AS dev
WORKDIR /app
ENV NODE_ENV=development \
    NEXT_TELEMETRY_DISABLED=1
COPY package*.json ./
RUN npm install
COPY . .
CMD ["npm", "run", "dev"]

# Production runtime: minimal Node image serving the standalone build
FROM node:22-slim AS runner
WORKDIR /app
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1 \
    PORT=3000

# Copy only the files required to serve the built app
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/static ./.next/static

# Drop privileges to the bundled node user for safety
USER node
EXPOSE 3000

# Next.js standalone exposes server.js at the root of the standalone output
CMD ["node", "server.js"]