# ─── Stage 1: Install dependencies ──────────────────────────────────────────
FROM node:22-alpine AS deps
WORKDIR /app
COPY backend/package*.json ./
RUN npm ci --omit=dev

# ─── Stage 2: Runtime ────────────────────────────────────────────────────────
FROM node:22-alpine AS runner
WORKDIR /app

# Install dumb-init untuk proper signal handling
RUN apk add --no-cache dumb-init

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

# Copy backend source
COPY backend/ ./backend/

# Copy frontend static files
COPY frontend/ ./frontend/

# Set working directory ke backend (karena server.js ada di sini)
WORKDIR /app/backend

# Non-root user untuk keamanan
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
USER appuser

EXPOSE 3000

ENV NODE_ENV=production
ENV PORT=3000

# Health check (dipakai Coolify untuk monitoring)
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
  CMD wget -qO- http://localhost:3000/health || exit 1

ENTRYPOINT ["dumb-init", "--"]
CMD ["node", "server.js"]