# Frontend Dockerfile
FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy package files
COPY package*.json ./
RUN npm ci

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

# Build-time args for Next.js (NEXT_PUBLIC_* are baked into the bundle)
ARG NEXT_PUBLIC_API_URL=https://zerp.atmata-group.com/api/v1
ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL

# Set build-time environment variable
ENV NEXT_TELEMETRY_DISABLED=1

# Build Next.js application
RUN npm run build

# Production stage
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Create non-root user
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

# Copy necessary files
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"]