From 7cc2f77503135e266264eb897e8f688e8ad216d5 Mon Sep 17 00:00:00 2001
From: zhangqian <zhangqian@123.com>
Date: 星期三, 09 八月 2023 19:27:38 +0800
Subject: [PATCH] 增加发票和合同产品的关联,发票新增和修改时更改对应合同已开票金额

---
 service/invoice.go |   51 +++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 41 insertions(+), 10 deletions(-)

diff --git a/service/invoice.go b/service/invoice.go
index c70450d..59301a9 100644
--- a/service/invoice.go
+++ b/service/invoice.go
@@ -18,12 +18,13 @@
 func (InvoiceService) AddInvoice(invoice *model.Invoice) int {
 
 	if invoice.SourceType == constvar.InvoiceSourceTypeServiceContract {
-		serviceContract, err := model.NewServiceContractSearch().SetId(invoice.SourceId).First()
+		serviceContract, err := model.NewServiceContractSearch().SetId(invoice.SourceId).SetPreload(true).First()
 		if err != nil {
 			return ecode.DBErr
 		}
 		var amountInvoiced decimal.Decimal
-		for _, product := range invoice.Products {
+		rightProducts := NewProductsService().PickRightProducts(invoice.Products, serviceContract.Products)
+		for _, product := range rightProducts {
 			amountInvoiced = serviceContract.AmountInvoiced.Add(product.Amount.Mul(product.Price))
 		}
 		amountInvoiced = amountInvoiced.Round(2)
@@ -35,13 +36,9 @@
 			if err != nil {
 				return err
 			}
-			err = model.NewServiceContractSearch().SetId(invoice.SourceId).UpdateByMap(map[string]interface{}{
+			return model.NewServiceContractSearch().SetId(invoice.SourceId).UpdateByMap(map[string]interface{}{
 				"amount_invoiced": amountInvoiced,
 			})
-			if err != nil {
-				return err
-			}
-			return nil
 		})
 		if err != nil {
 			return ecode.DBErr
@@ -86,9 +83,43 @@
 }
 
 func (InvoiceService) UpdateInvoice(invoice *model.Invoice) int {
-	err := model.NewInvoiceSearch().SetId(invoice.Id).Save(invoice)
-	if err != nil {
-		return ecode.DBErr
+	if invoice.SourceType == constvar.InvoiceSourceTypeServiceContract {
+		serviceContract, err := model.NewServiceContractSearch().SetId(invoice.SourceId).SetPreload(true).First()
+		if err != nil {
+			return ecode.DBErr
+		}
+		var amountInvoiced decimal.Decimal
+		newProducts, removedProducts := NewProductsService().PickDiffProducts(invoice.Products, serviceContract.Products)
+		for _, product := range newProducts {
+			amountInvoiced = serviceContract.AmountInvoiced.Add(product.Amount.Mul(product.Price))
+		}
+		removedProductIds := make([]uint, 0, len(removedProducts))
+		for _, product := range removedProducts {
+			amountInvoiced = serviceContract.AmountInvoiced.Sub(product.Amount.Mul(product.Price))
+			removedProductIds = append(removedProductIds, product.Id)
+		}
+		amountInvoiced = amountInvoiced.Round(2)
+		if amountInvoiced.GreaterThan(serviceContract.AmountReceivable) {
+			return ecode.SContractInvoiceProductPriceGreaterThanReceivableAmountErr
+		}
+		err = model.WithTransaction(func(db *gorm.DB) error {
+			err = model.NewInvoiceSearch().SetId(invoice.Id).Save(invoice)
+			if err != nil {
+				return err
+			}
+			if len(removedProductIds) > 0 {
+				err = model.NewInvoiceProductSearch().SetInvoiceId(invoice.Id).SetProductIds(removedProductIds).Delete()
+				if err != nil {
+					return err
+				}
+			}
+			return model.NewServiceContractSearch().SetId(invoice.SourceId).UpdateByMap(map[string]interface{}{
+				"amount_invoiced": amountInvoiced,
+			})
+		})
+		if err != nil {
+			return ecode.DBErr
+		}
 	}
 	return ecode.OK
 }

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