# Dockerfile optimizado para Next.js production
FROM node:18-alpine AS base

# Instalar dependencias para build
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copiar archivos de dependencias
COPY package.json package-lock.json ./
RUN npm ci --ignore-scripts && npm cache clean --force

# Build stage
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Variables de entorno para build
ENV NEXT_TELEMETRY_DISABLED 1
ENV NODE_ENV production

# Build optimizado
RUN npm run build

# Production stage
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copiar archivos necesarios
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

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