# Pastel UI - Production Docker Image
# Multi-stage build for optimized Next.js 16 application

# Stage 1: Dependencies
FROM node:20-alpine AS deps
RUN corepack enable && corepack prepare pnpm@latest --activate

WORKDIR /app

# Copy package files
COPY package.json pnpm-lock.yaml ./

# Install dependencies
RUN pnpm install --frozen-lockfile --prod=false

# Stage 2: Builder
FROM node:20-alpine AS builder
RUN corepack enable && corepack prepare pnpm@latest --activate

WORKDIR /app

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules

# Copy source files
COPY . .

# Set build-time environment variables
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production

# Build the application
RUN pnpm build

# Stage 3: Runner
FROM node:20-alpine 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 built application
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"

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3000/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

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