# Phase 2: Service Layer Extraction — COMPLETE ✅

**Date**: Phase 2 completed after Phase 1 Foundation  
**Result**: `npx tsc --noEmit` → Exit Code 0 (zero errors)  
**Strategy**: Copy files to new locations, update internal imports, convert old files to re-export proxies

---

## Summary

26 service files moved from `src/lib/` into a structured `src/server/services/` hierarchy.  
All original `src/lib/` files converted to thin re-export proxies — existing imports throughout the codebase are **unbroken**.

---

## File Mapping

### Payment Services → `src/server/services/payment/`

| Old Path | New Path |
|---|---|
| `src/lib/payment/midtrans.ts` | `src/server/services/payment/midtrans.service.ts` |
| `src/lib/payment/xendit.ts` | `src/server/services/payment/xendit.service.ts` |
| `src/lib/payment/duitku.ts` | `src/server/services/payment/duitku.service.ts` |
| `src/lib/payment/tripay.ts` | `src/server/services/payment/tripay.service.ts` |

### Notification Services → `src/server/services/notifications/`

| Old Path | New Path |
|---|---|
| `src/lib/whatsapp.ts` | `src/server/services/notifications/whatsapp.service.ts` |
| `src/lib/whatsapp-notifications.ts` | `src/server/services/notifications/whatsapp-templates.service.ts` |
| `src/lib/email.ts` | `src/server/services/notifications/email.service.ts` |
| `src/lib/firebase-admin.ts` | `src/server/services/notifications/push.service.ts` |
| `src/lib/telegram.ts` | `src/server/services/notifications/telegram.service.ts` |
| `src/lib/notifications.ts` | `src/server/services/notifications/dispatcher.service.ts` |
| `src/lib/push-templates.ts` | `src/server/services/notifications/push-templates.service.ts` |

### MikroTik Services → `src/server/services/mikrotik/`

| Old Path | New Path |
|---|---|
| `src/lib/mikrotik/routeros.ts` | `src/server/services/mikrotik/client.ts` |
| `src/lib/mikrotik-rate-limit.ts` | `src/server/services/mikrotik/rate-limit.ts` |

### RADIUS Services → `src/server/services/radius/`

| Old Path | New Path |
|---|---|
| `src/lib/freeradius.ts` | `src/server/services/radius/freeradius.service.ts` |
| `src/lib/radius-coa.ts` | `src/server/services/radius/coa.service.ts` |
| `src/lib/hotspot-radius-sync.ts` | `src/server/services/radius/hotspot-sync.service.ts` |
| `src/lib/services/coaService.ts` | `src/server/services/radius/coa-handler.service.ts` |

### Billing Services → `src/server/services/billing/`

| Old Path | New Path |
|---|---|
| `src/lib/invoice-generator.ts` | `src/server/services/billing/invoice.service.ts` |

### Core Services → `src/server/services/`

| Old Path | New Path |
|---|---|
| `src/lib/isolation-settings.ts` | `src/server/services/isolation.service.ts` |
| `src/lib/referral.ts` | `src/server/services/referral.service.ts` |
| `src/lib/backup.ts` | `src/server/services/backup.service.ts` |
| `src/lib/activity-log.ts` | `src/server/services/activity-log.service.ts` |
| `src/lib/session-monitor.ts` | `src/server/services/session-monitor.service.ts` |
| `src/lib/company.ts` | `src/server/services/company.service.ts` |
| `src/lib/sse-manager.ts` | `src/server/services/sse-manager.service.ts` |

---

## Import Updates Applied to New Service Files

All internal relative imports (`./prisma`, `./timezone`, `./notifications`, etc.) were updated to use proper `@/server/` or `@/lib/` absolute paths:

| File | Updated Imports |
|---|---|
| `payment/midtrans.service.ts` | `@/lib/prisma` → `@/server/db/client` |
| `payment/xendit.service.ts` | `@/lib/prisma` → `@/server/db/client` |
| `billing/invoice.service.ts` | `@/lib/prisma` → `@/server/db/client` |
| `referral.service.ts` | `@/lib/prisma` → `@/server/db/client` |
| `notifications/whatsapp.service.ts` | `./prisma` → `@/server/db/client` |
| `notifications/email.service.ts` | `./prisma` → `@/server/db/client` |
| `radius/hotspot-sync.service.ts` | `./prisma` → `@/server/db/client` |
| `activity-log.service.ts` | `./prisma` → `@/server/db/client`, `./notifications` → dispatcher, `./timezone` → `@/lib/timezone` |
| `backup.service.ts` | `./prisma` → `@/server/db/client` |
| `company.service.ts` | `./prisma` → `@/server/db/client` |
| `isolation.service.ts` | `./prisma` → `@/server/db/client` |
| `notifications/dispatcher.service.ts` | `./prisma` → `@/server/db/client`, `./timezone` → `@/lib/timezone` |
| `notifications/push-templates.service.ts` | `@/lib/firebase-admin` → push.service, `@/lib/prisma` → `@/server/db/client` |
| `notifications/whatsapp-templates.service.ts` | `./whatsapp` → whatsapp.service, `./prisma` → `@/server/db/client` |
| `mikrotik/rate-limit.ts` | `@/lib/radius-coa` → `@/server/services/radius/coa.service` |
| `radius/coa-handler.service.ts` | `@/lib/prisma` → `@/server/db/client`, `@/lib/timezone` stays |
| `session-monitor.service.ts` | `./prisma` → `@/server/db/client`, `./notifications` → dispatcher, `./timezone` → `@/lib/timezone` |

---

## Re-Export Proxies Created

All 26 old `src/lib/` files were converted to re-export proxies. Example:

```ts
// src/lib/whatsapp.ts (was full implementation, now proxy)
export { WhatsAppService } from '@/server/services/notifications/whatsapp.service';
```

This ensures **zero breakage** across existing API routes, cron jobs, and components that still import from `@/lib/*`.

---

## Import Count Reference (why proxies matter)

| Old path | Importers |
|---|---|
| `@/lib/activity-log` | 11 files |
| `@/lib/whatsapp` | 11 files |
| `@/lib/hotspot-radius-sync` | 9 files |
| `@/lib/whatsapp-notifications` | 6 files |
| `@/lib/services/coaService` | 6 files |
| `@/lib/backup` | 6 files |
| `@/lib/payment/midtrans` | 5 files |
| `@/lib/telegram` | 5 files |
| `@/lib/isolation-settings` | 5 files |
| Other files | 1–4 files each |

---

## New `src/server/services/` Structure

```
src/server/services/
├── payment/
│   ├── midtrans.service.ts
│   ├── xendit.service.ts
│   ├── duitku.service.ts
│   └── tripay.service.ts
├── notifications/
│   ├── whatsapp.service.ts
│   ├── whatsapp-templates.service.ts
│   ├── email.service.ts
│   ├── push.service.ts          (firebase-admin)
│   ├── telegram.service.ts
│   ├── dispatcher.service.ts    (notifications)
│   └── push-templates.service.ts
├── mikrotik/
│   ├── client.ts                (routeros)
│   └── rate-limit.ts
├── radius/
│   ├── freeradius.service.ts
│   ├── coa.service.ts           (radius-coa)
│   ├── hotspot-sync.service.ts
│   └── coa-handler.service.ts   (services/coaService)
├── billing/
│   └── invoice.service.ts
├── isolation.service.ts
├── referral.service.ts
├── backup.service.ts
├── activity-log.service.ts
├── session-monitor.service.ts
├── company.service.ts
└── sse-manager.service.ts
```

---

## Validation

```
npx tsc --noEmit
# Exit Code: 0 — No TypeScript errors
```

---

## Next: Phase 3 — API Route Consolidation

Target: Move scattered `src/app/api/**` routes into `src/server/api/` groupings, create shared route handler utilities, and unify error response formats.

See [ROADMAP_RESTRUCTURING.md](../ROADMAP_RESTRUCTURING.md) for the full plan.
