按实际纯币金额计算租客优惠与积分

2026-07-27 10:45:41 +08:00
parent 99e8eb28af
commit 8af7333969
30 changed files with 983 additions and 154 deletions
@@ -5,11 +5,116 @@ import (
 	"time"

 	"hfb_sys/backend/internal/model"
+	"hfb_sys/backend/internal/modules/rentergrowth"
 	"hfb_sys/backend/internal/timeutil"

 	"gorm.io/datatypes"
 )

+func pureCoinDiscountOrder() model.RentalOrder {
+	return model.RentalOrder{
+		RentAmountCent:              38037,
+		OwnerRentAmountCent:         35300,
+		DepositAmountCent:           15000,
+		RentOriginalAmountCent:      38300,
+		RentDiscountAmountCent:      263,
+		PureCoinOriginalAmountCent:  26300,
+		ExtraItemOriginalAmountCent: 12000,
+		RenterDiscountBps:           9900,
+		AccountSnapshot: datatypes.JSON([]byte(`{
+			"haf_coin_amount": 100000000,
+			"asset_summary": {
+				"price_breakdown": {
+					"buyer_coin_base_price": 263,
+					"seller_coin_base_price": 233,
+					"consumable_price": 120
+				}
+			}
+		}`)),
+	}
+}
+
+func TestCalculateCheckoutSettlementUsesOnlyActualPureCoinForDiscount(t *testing.T) {
+	tests := []struct {
+		name                 string
+		consumableAmountCent int64
+		coinConsumedM        float64
+		wantPureCoinCent     int64
+		wantDiscountCent     int64
+		wantActualRentCent   int64
+		wantOvershootCent    int64
+	}{
+		{
+			name:                 "全量纯币和额外物品",
+			consumableAmountCent: 12000,
+			coinConsumedM:        100,
+			wantPureCoinCent:     26300,
+			wantDiscountCent:     263,
+			wantActualRentCent:   38037,
+			wantOvershootCent:    0,
+		},
+		{
+			name:                 "部分纯币和全量额外物品",
+			consumableAmountCent: 12000,
+			coinConsumedM:        50,
+			wantPureCoinCent:     13150,
+			wantDiscountCent:     132,
+			wantActualRentCent:   25018,
+			wantOvershootCent:    0,
+		},
+		{
+			name:                 "只使用额外物品",
+			consumableAmountCent: 12000,
+			coinConsumedM:        0,
+			wantPureCoinCent:     0,
+			wantDiscountCent:     0,
+			wantActualRentCent:   12000,
+			wantOvershootCent:    0,
+		},
+		{
+			name:                 "纯币打超仍参与优惠",
+			consumableAmountCent: 12000,
+			coinConsumedM:        110,
+			wantPureCoinCent:     28930,
+			wantDiscountCent:     290,
+			wantActualRentCent:   40640,
+			wantOvershootCent:    2603,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			settlement := calculateCheckoutSettlement(pureCoinDiscountOrder(), test.consumableAmountCent, test.coinConsumedM, 0)
+			if settlement.PureCoinAmountCent != test.wantPureCoinCent || settlement.PureCoinDiscountCent != test.wantDiscountCent {
+				t.Fatalf("纯币原价/优惠 = %d/%d, want %d/%d", settlement.PureCoinAmountCent, settlement.PureCoinDiscountCent, test.wantPureCoinCent, test.wantDiscountCent)
+			}
+			if settlement.ActualRentAmountCent != test.wantActualRentCent || settlement.OvershootAmountCent != test.wantOvershootCent {
+				t.Fatalf("实际租金/打超 = %d/%d, want %d/%d", settlement.ActualRentAmountCent, settlement.OvershootAmountCent, test.wantActualRentCent, test.wantOvershootCent)
+			}
+		})
+	}
+}
+
+func TestBuildOrderPricingDoesNotDiscountAllExtraItemOrder(t *testing.T) {
+	pricing := buildOrderPricing(
+		model.RentalListing{PriceCent: 12000},
+		model.GameAccount{AssetSummary: datatypes.JSON([]byte(`{
+			"price_breakdown": {
+				"buyer_coin_base_price": 0,
+				"seller_coin_base_price": 0,
+				"consumable_price": 120,
+				"seller_total_price": 120
+			}
+		}`))},
+	)
+	if pricing.PureCoinAmountCent != 0 || pricing.ExtraItemAmountCent != 12000 || pricing.PureCoinPlatformFeeCent != 0 {
+		t.Fatalf("全额外物品订单纯币/额外物品/纯币差价 = %d/%d/%d, want 0/12000/0", pricing.PureCoinAmountCent, pricing.ExtraItemAmountCent, pricing.PureCoinPlatformFeeCent)
+	}
+	if discount := rentergrowth.CalculateDiscountCent(pricing.PureCoinAmountCent, pricing.PureCoinPlatformFeeCent, 9900); discount != 0 {
+		t.Fatalf("全额外物品订单优惠 = %d, want 0", discount)
+	}
+}
+
 func TestCalculateCheckoutSettlementRefundsUnusedRent(t *testing.T) {
 	order := model.RentalOrder{
 		RentAmountCent:      38300,