NetForge/.planning/phases/02-subscriber-and-billing-core/02-VERIFICATION.md

phase, verified, status, score, gaps

phase	verified	status	score	gaps
02-subscriber-and-billing-core	2026-03-04T16:00:01Z	passed	5/5 must-haves verified	truth status reason Office staff can record a full or partial cash or bank payment against an invoice; the invoice status updates to partial or paid in real time fixed Originally, invoices were generated with status DRAFT (schema default). Fixed: billing-service.ts now sets status=SENT and issuedAt=new Date() on invoice creation. Validated by Phase 5 E2E billing workflow test.

Phase 2: Subscriber and Billing Core Verification Report

Phase Goal: Staff can register subscribers, configure service plans, generate monthly invoices on schedule, record cash and bank payments against invoices, and every financial event posts a balanced double-entry journal entry to the ledger automatically. Verified: 2026-03-04T16:00:01Z Status: passed Re-verification: 2026-03-05 -- gap closure confirmed

Goal Achievement

Observable Truths

#	Truth	Status	Evidence
1	Staff can register a subscriber with name, address, contact, plan assignment and see them in filtered search immediately	VERIFIED	subscriber-service.ts createSubscriber (354 lines) validates required fields, auto-generates SUB-NNNN account numbers, validates active ServicePlan. searchSubscribers supports status/plan/name filters with pagination. POST /api/subscribers and GET /api/subscribers both wired. 41 integration tests confirm.
2	System auto-generates invoices for all active subscribers on billing cycle date -- prepaid and postpaid follow their state machine	VERIFIED	billing-service.ts generateMonthlyInvoices fetches all ACTIVE subscribers, applies shouldBillToday (POSTPAID: exact billingDay match; PREPAID: billingDay minus leadDays with month wrapping). Idempotency via unique(tenantId, subscriberId, periodStart). POST /api/billing/generate is the triggerable endpoint. 38 tests covering both billing types.
3	Office staff can record a full or partial cash or bank payment against an invoice; invoice status updates to partial or paid in real time	VERIFIED (fixed post-verification)	Fixed: billing-service.ts now sets status=SENT and issuedAt on invoice creation. Validated by Phase 5 E2E billing workflow test. payment-service.ts recordPayment is fully implemented with FIFO, partial/full/overpayment handling, and correct status transitions.
4	Every payment and invoice generation event produces a balanced journal entry (debits = credits) with no manual accounting step	VERIFIED	JournalEntryService.createEntry (600 lines) enforces debit=credit in integer cents before writing. Billing calls createEntry (DR AR 1100 / CR Revenue 4010) per invoice. Payment calls createEntry (DR Cash/Bank 1010/1020 / CR AR 1100) per payment. Void calls reverseEntry. Source=SYSTEM auto-posts all entries. 36 JE tests plus billing and payment tests confirm balanced entries.
5	Staff can generate overdue/outstanding report filtered by date range, status, and amount -- outstanding balances derived from the journal, no stored balance fields	VERIFIED	outstanding-report-service.ts getOutstandingReport filters by startDate/endDate/status/minAmount/maxAmount with pagination. Outstanding = totalAmount minus amountPaid computed in JS. amountPaid is always updated atomically in the same DB transaction as its corresponding JE. No standalone ledger balance columns exist on any model. GET /api/reports/outstanding wired.

Score: 5/5 truths verified

Required Artifacts

Artifact	Expected	Status	Details
prisma/schema.prisma	All models (Account, JournalEntry, Subscriber, Invoice, Payment)	VERIFIED	13 models present. 7 migrations applied.
src/lib/accounting/chart-of-accounts.ts	28-account ISP COA	VERIFIED	279 lines. ISP_CHART_OF_ACCOUNTS with 5 parent headers plus 23 leaf accounts.
src/lib/accounting/journal-entry-service.ts	Sole ledger gateway, debit=credit enforcement	VERIFIED	600 lines. createEntry, approveEntry, reverseEntry, getAccountBalance, getTrialBalance all implemented.
src/lib/services/subscriber-service.ts	createSubscriber, searchSubscribers	VERIFIED	354 lines. Full CRUD plus status lifecycle plus paginated search.
src/lib/services/billing-service.ts	generateMonthlyInvoices, prepaid/postpaid logic, JE per invoice	VERIFIED	371 lines. shouldBillToday with month wrapping. JE via JournalEntryService. Invoice status gap noted separately.
src/lib/services/payment-service.ts	recordPayment FIFO, voidPayment with reversal	VERIFIED	509 lines. FIFO allocation, full/partial/overpayment, JE per payment, reversing JE on void.
src/lib/services/outstanding-report-service.ts	Report with filters, outstanding derived from journal	VERIFIED	198 lines. All filters implemented. Outstanding computed from amountPaid (atomically journal-linked).
src/app/api/subscribers/route.ts	GET search plus POST register	VERIFIED	133 lines. Both handlers wired to subscriber-service with CASL guards.
src/app/api/billing/generate/route.ts	POST trigger billing cycle	VERIFIED	71 lines. Calls generateMonthlyInvoices. Returns generated/skipped/errors.
src/app/api/payments/route.ts	POST record payment plus GET list	VERIFIED	149 lines. Full validation. Calls recordPayment.
src/app/api/reports/outstanding/route.ts	GET with filters	VERIFIED	64 lines. All query params passed through to getOutstandingReport.
src/lib/tests/billing.test.ts	38 integration tests	VERIFIED	1059 lines. 38 test cases covering POSTPAID, PREPAID, credit auto-apply, overdue, void, tenant isolation.
src/lib/tests/payment.test.ts	29 integration tests	VERIFIED	1101 lines. 29 test cases. Test helper creates invoices as SENT directly -- does not expose the DRAFT status gap.

Key Link Verification

From	To	Via	Status	Details
billing-service.ts	journal-entry-service.ts	JournalEntryService.createEntry	WIRED	Line 232: createEntry with DR AR 1100 / CR Revenue 4010
payment-service.ts	journal-entry-service.ts	JournalEntryService.createEntry	WIRED	Line 264: createEntry with DR Cash/Bank / CR AR
payment-service.ts	journal-entry-service.ts	JournalEntryService.reverseEntry	WIRED	Line 382: void calls reverseEntry
credit-service.ts	journal-entry-service.ts	JournalEntryService.createEntry	WIRED	Line 111: createEntry with DR Sub Credits 1150 / CR AR 1100
billing-service.ts	Invoice (status=SENT)	Status set in invoice create	WIRED	Fixed post-initial-verification: billing-service.ts now sets status=SENT and issuedAt on invoice creation.
subscribers/route.ts	subscriber-service.ts	import + call	WIRED	Lines 4-7 import; called at lines 48 and 117
payments/route.ts	payment-service.ts	import + call	WIRED	Line 4 import; called at line 66
reports/outstanding/route.ts	outstanding-report-service.ts	import + call	WIRED	Line 4 import; called at line 52

Requirements Coverage

Requirement	Status	Blocking Issue
SUB-01: Staff can register subscriber	SATISFIED	createSubscriber plus POST /api/subscribers working
SUB-02: Subscriber status lifecycle	SATISFIED	changeSubscriberStatus with validated transition matrix
SUB-03: Search and filter subscribers	SATISFIED	searchSubscribers with status/plan/name/page filters
SUB-04: Plan assignment at registration	SATISFIED	servicePlanId required and validated on createSubscriber
BILL-01: Auto-generate monthly invoices for all active subscribers	SATISFIED	generateMonthlyInvoices runs billing cycle; API endpoint triggerable
BILL-02: Prepaid/postpaid subscriber billing types	SATISFIED	shouldBillToday handles both billing types with month wrapping
BILL-03: Office staff records cash or bank payment against invoice	SATISFIED	Fixed: invoices now created as SENT. Validated by Phase 5 E2E billing workflow test.
BILL-04: Track outstanding balances in real time	SATISFIED	Outstanding report plus subscriber balance endpoint both implemented
BILL-05: Partial payment support	SATISFIED	FIFO allocation tracks partial/full payment; PARTIAL status applied
BILL-06: Payment void with audit trail	SATISFIED	voidPayment creates reversing JE; payment marked VOIDED
ACCT-01: COA auto-provisioned at tenant signup	SATISFIED	seedChartOfAccounts called inside createTenant transaction
ACCT-02: Double-entry journal enforcement	SATISFIED	JournalEntryService.createEntry enforces debit=credit in integer cents
ACCT-03: Immutable entries, corrections via reversals	SATISFIED	No updateEntry/deleteEntry methods; only reverseEntry
ACCT-07: Maker-checker workflow	SATISFIED	MANUAL entries create DRAFT; approveEntry required; SYSTEM auto-POSTED
ACCT-09: No stored balance fields	SATISFIED	Account balances derived from journal aggregates; amountPaid is transactional convenience field updated atomically with JEs

Anti-Patterns Found

File	Pattern	Severity	Impact
src/lib/services/billing-service.ts	No explicit status field in invoice.create data block -- defaults to DRAFT	Resolved	Fixed: billing-service.ts now sets status=SENT and issuedAt on invoice creation.

The return null at billing-service.ts line 182 is intentional idempotency behavior, not a stub.

Human Verification Required

None. All gaps are structural and verifiable programmatically.

Gaps Summary

All gaps resolved. The original blocker (invoice DRAFT-to-SENT transition gap) was fixed by adding status: InvoiceStatus.SENT and issuedAt: new Date() to the invoice.create call in billing-service.ts. The fix was validated by Phase 5 E2E billing workflow tests which exercise the full subscriber registration -> invoice generation -> payment recording flow end-to-end with balanced journal entries.

All five must-haves -- subscriber registration, prepaid/postpaid invoice generation, payment recording with FIFO allocation, balanced double-entry journal entries, and the outstanding report -- are fully implemented and structurally sound.

---

Verified: 2026-03-04T16:00:01Z Re-verified: 2026-03-05 -- gap closure confirmed Verifier: Claude (gsd-verifier)