# Synapsis Docker Image
# Multi-stage build for production

# Stage 1: Dependencies
FROM node:20-alpine AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy package files
COPY package.json package-lock.json* ./
RUN npm ci --only=production

# Stage 2: Builder
FROM node:20-alpine AS builder
WORKDIR /app

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

# Build the application
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
RUN npm run 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
RUN 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

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Set environment variables (can be overridden at runtime)
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD curl -f http://localhost:3000/api/node || exit 1

# Start the application
CMD ["node", "server.js"]