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- Rev 35716 2026-02-09 23:56:47
- Author: amit
- Log message:
- Refactor GrnController and PurchaseOrderController: extract business logic into focused services and fix N+1 query performance issues
- Create InvoiceService: invoice item CRUD, validation, vendor price matching
- Create GrnRequestService: GRN request lifecycle, mismatch resolution state machine
- Create DebitNoteService: debit note generation, PDF model building
- Move PO amendment logic from PurchaseOrderController to PurchaseOrderService
- Delegate generateDebitNote from PurchaseOrderServiceImpl to DebitNoteService
- Thin GrnController from ~1215 to ~717 lines, remove 15 unused autowired dependencies
- Thin PurchaseOrderController editPurchaseOrder from 40+ lines to 3 lines
Performance fixes:
- InvoiceServiceImpl.validateInvoiceDetail: batch item/vendor pricing/GST loading (4N+3 queries -> ~5)
- DebitNoteServiceImpl: batch item loading in buildDebitNotePdfModel and generateDebitNote
- GrnController.generateDebitNote: eliminate 2 redundant DB fetches
- Replace 3x supplierRepository.selectAll() with targeted selectBySupplierIds()