# Stage 1: Dependencies
FROM node:22-alpine AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

COPY package*.json ./
RUN npm config set fetch-retries 5 \
    && npm config set fetch-retry-factor 2 \
    && npm config set fetch-retry-mintimeout 20000 \
    && npm config set fetch-retry-maxtimeout 120000 \
    && npm config set fetch-timeout 300000 \
    && npm ci

# Stage 2: Builder
FROM node:22-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Set env for build (can be overridden during build)
ARG NEXT_PUBLIC_API_URL=/api/v1
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}

RUN npm run build

# Stage 3: Runner (Production)
FROM node:22-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=4000

# Create an unprivileged user
RUN addgroup --system --gid 1001 nodejs \
    && adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

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

USER nextjs

EXPOSE 4000

ENV HOSTNAME="0.0.0.0"

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