Files
NetForge/.planning/phases/04-inventory-expenses-and-financial-reports/04-04-SUMMARY.md
kevin-asprec df3e36b7a2 docs(04-04): complete Expense Reports and Audit Trail plan
Tasks completed: 2/2
- ExpenseReportService and AuditTrailService with API routes
- 9 passing integration tests

SUMMARY: .planning/phases/04-inventory-expenses-and-financial-reports/04-04-SUMMARY.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 15:11:49 +08:00

108 lines
4.3 KiB
Markdown

---
phase: 04-inventory-expenses-and-financial-reports
plan: 04
subsystem: reports, accounting
tags: [expense-reports, audit-trail, journal-entries, ACCT-08, prisma]
# Dependency graph
requires:
- phase: 04-03
provides: ExpenseService, VendorService, expense categories, vendor model
- phase: 02-02
provides: JournalEntryService, referenceType/referenceId on JEs
provides:
- ExpenseReportService with category/vendor/summary aggregation
- AuditTrailService with JE audit trail (ACCT-08 compliance)
- Expense report API routes
- JE audit trail API route
affects: []
# Tech tracking
tech-stack:
added: []
patterns:
- "Expense aggregation in JS from Prisma findMany (same pattern as outstanding reports)"
- "AuditTrailService works across all JE sources via referenceType/referenceId"
key-files:
created:
- src/lib/services/expense-report-service.ts
- src/lib/services/audit-trail-service.ts
- src/app/api/reports/expenses/route.ts
- src/app/api/reports/expenses/by-vendor/route.ts
- src/app/api/accounting/journal-entries/[id]/audit/route.ts
- src/lib/__tests__/expense-report-service.test.ts
modified: []
key-decisions:
- "Expense aggregation done in JS after findMany (same pattern as outstanding reports, collector balances)"
- "AuditTrailService queries JEs by referenceType+referenceId -- works for all sources (Invoice, Payment, Expense, Collection, etc.)"
- "No Vendor bucket uses null vendorId key in grouping -- expenses without vendor are still reported"
patterns-established:
- "AuditTrailService pattern: getJournalEntryAudit for single JE, getAuditTrailForEntity for all JEs related to a source record"
# Metrics
duration: 20min
completed: 2026-03-05
---
# Phase 4 Plan 4: Expense Reports and Audit Trail Summary
**ExpenseReportService aggregates spending by category/vendor with date filtering; AuditTrailService traces every JE to its creator and source transaction (ACCT-08)**
## Performance
- **Duration:** 20 min
- **Started:** 2026-03-05T06:35:27Z
- **Completed:** 2026-03-05T06:55:12Z
- **Tasks:** 2
- **Files created:** 6
## Accomplishments
- Expense reports by category and vendor with date range filtering (only POSTED expenses)
- Full JE audit trail showing creator, timestamp, source reference, and line details
- Audit trail works across ALL JE sources (proven with Payment JE test)
- 9 passing integration tests covering reports, filtering, and cross-source audit
## Task Commits
Each task was committed atomically:
1. **Task 1: ExpenseReportService and AuditTrailService** - `6bc24a3` (feat)
2. **Task 2: Tests for expense reports and audit trail** - `787b22e` (test)
## Files Created/Modified
- `src/lib/services/expense-report-service.ts` - Expense aggregation by category, vendor, and combined summary
- `src/lib/services/audit-trail-service.ts` - JE audit trail with creator, source reference, approval info
- `src/app/api/reports/expenses/route.ts` - GET expense summary by category (ADMIN)
- `src/app/api/reports/expenses/by-vendor/route.ts` - GET expense summary by vendor (ADMIN)
- `src/app/api/accounting/journal-entries/[id]/audit/route.ts` - GET JE audit trail (ADMIN, OFFICE_STAFF)
- `src/lib/__tests__/expense-report-service.test.ts` - 9 integration tests
## Decisions Made
- Expense aggregation done in JS after findMany -- same pattern as outstanding reports and collector balances (acceptable for ISP scale)
- AuditTrailService queries by referenceType+referenceId, works for all JE sources without source-specific logic
- "No Vendor" bucket included in vendor reports for expenses without vendorId
- Decimal amounts serialized as strings in API responses (consistent with other report endpoints)
## Deviations from Plan
None -- plan executed exactly as written.
## Issues Encountered
- Plan specified `npx jest` for test verification but project uses Vitest -- used `npx vitest run` instead (not a code deviation, just a verification command difference)
## User Setup Required
None -- no external service configuration required.
## Next Phase Readiness
- Phase 4 is now fully complete (all 5 plans: 04-01 through 04-05)
- All financial reporting capabilities built: trial balance, income statement, balance sheet, expense reports, and audit trail
- Ready for Phase 5 (Portal and Dashboard)
---
*Phase: 04-inventory-expenses-and-financial-reports*
*Completed: 2026-03-05*