feat: 为折扣计算函数 getDiscount 引入新用户判断逻辑以支持新用户专属折扣。

internal/logic/public/order/getDiscount.go

@@ -2,10 +2,13 @@ package order
 
 import "github.com/perfect-panel/server/internal/types"
 
-func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64) float64 {
+func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64, isNewUser bool) float64 {
 	var finalDiscount float64 = 100
 
 	for _, discount := range discounts {
+		if discount.NewUserOnly && !isNewUser {
+			continue
+		}
 		if inputMonths >= discount.Quantity && discount.Discount < finalDiscount {
 			finalDiscount = discount.Discount
 		}

internal/logic/public/order/preCreateOrderLogic.go

@@ -133,10 +133,11 @@ func (l *PreCreateOrderLogic) PreCreateOrder(req *types.PurchaseOrderRequest) (r
 	}
 
 	var discount float64 = 1
+	isNewUserForDiscount := time.Since(u.CreatedAt) <= 24*time.Hour
 	if sub.Discount != "" {
 		var dis []types.SubscribeDiscount
 		_ = json.Unmarshal([]byte(sub.Discount), &dis)
-		discount = getDiscount(dis, req.Quantity)
+		discount = getDiscount(dis, req.Quantity, isNewUserForDiscount)
 	}
 	price := sub.UnitPrice * req.Quantity
 

internal/logic/public/order/purchaseLogic.go

@@ -129,10 +129,11 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
 	}
 
 	var discount float64 = 1
+	isNewUserForDiscount := time.Since(u.CreatedAt) <= 24*time.Hour
 	if sub.Discount != "" {
 		var dis []types.SubscribeDiscount
 		_ = json.Unmarshal([]byte(sub.Discount), &dis)
-		discount = getDiscount(dis, req.Quantity)
+		discount = getDiscount(dis, req.Quantity, isNewUserForDiscount)
 	}
 	price := sub.UnitPrice * req.Quantity
 	// discount amount

internal/logic/public/order/renewalLogic.go

@@ -83,7 +83,7 @@ func (l *RenewalLogic) Renewal(req *types.RenewalOrderRequest) (resp *types.Rene
 	if sub.Discount != "" {
 		var dis []types.SubscribeDiscount
 		_ = json.Unmarshal([]byte(sub.Discount), &dis)
-		discount = getDiscount(dis, req.Quantity)
+		discount = getDiscount(dis, req.Quantity, false)
 	}
 	price := sub.UnitPrice * req.Quantity
 	amount := int64(math.Round(float64(price) * discount))

internal/logic/public/portal/prePurchaseOrderLogic.go

@@ -41,7 +41,7 @@ func (l *PrePurchaseOrderLogic) PrePurchaseOrder(req *types.PrePurchaseOrderRequ
 	if sub.Discount != "" {
 		var dis []types.SubscribeDiscount
 		_ = json.Unmarshal([]byte(sub.Discount), &dis)
-		discount = getDiscount(dis, req.Quantity)
+		discount = getDiscount(dis, req.Quantity, true)
 	}
 	price := sub.UnitPrice * req.Quantity
 	amount := int64(math.Round(float64(price) * discount))

internal/logic/public/portal/purchaseLogic.go

@@ -73,7 +73,7 @@ func (l *PurchaseLogic) Purchase(req *types.PortalPurchaseRequest) (resp *types.
 	if sub.Discount != "" {
 		var dis []types.SubscribeDiscount
 		_ = json.Unmarshal([]byte(sub.Discount), &dis)
-		discount = getDiscount(dis, req.Quantity)
+		discount = getDiscount(dis, req.Quantity, true)
 	}
 	price := sub.UnitPrice * req.Quantity
 	// discount amount

internal/logic/public/portal/tool.go

@@ -6,10 +6,13 @@ import (
 	"github.com/perfect-panel/server/internal/types"
 )
 
-func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64) float64 {
+func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64, isNewUser bool) float64 {
 	var finalDiscount float64 = 100
 
 	for _, discount := range discounts {
+		if discount.NewUserOnly && !isNewUser {
+			continue
+		}
 		if inputMonths >= discount.Quantity && discount.Discount < finalDiscount {
 			finalDiscount = discount.Discount
 		}