# Production Dockerfile for Next.js 16
# Multi-stage build for minimal image size

# ============================================
# Stage 1: deps — install production dependencies
# ============================================
FROM node:22-alpine AS deps
WORKDIR /app

# Install OS dependencies
RUN apk add --no-cache libc6-compat openssl

# Copy package files
COPY package.json package-lock.json ./
COPY prisma ./prisma

# Install dependencies (production only for runtime)
RUN npm ci --omit=dev && \
    npx prisma generate

# ============================================
# Stage 2: build — compile Next.js
# ============================================
FROM node:22-alpine AS builder
WORKDIR /app

RUN apk add --no-cache libc6-compat openssl

# Copy package files + install ALL deps for build
COPY package.json package-lock.json ./
COPY prisma ./prisma
RUN npm ci && npx prisma generate

# Copy source
COPY . .

# Build (NEXT_PHASE skips runtime checks)
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
RUN npm run build

# ============================================
# Stage 3: runner — minimal production image
# ============================================
FROM node:22-alpine AS runner
WORKDIR /app

RUN apk add --no-cache libc6-compat openssl curl
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Copy built artifacts (Next.js standalone output)
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/prisma ./prisma
COPY --from=builder --chown=nextjs:nodejs /app/node_modules/@prisma ./node_modules/@prisma
COPY --from=builder --chown=nextjs:nodejs /app/node_modules/.prisma ./node_modules/.prisma

USER nextjs

EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD curl -fsS http://localhost:3000/api/health || exit 1

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