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
@@ -26,6 +26,7 @@ const (
 	MaxLevelPoints           = 1_000_000_000
 	MaxLevelQuotaCent        = 100_000_000
 	SourceOrderCompleted     = "order_completed"
+	SourceOrderRefunded      = "order_refunded"
 	SourceAdminAdjustment    = "admin_adjustment"
 )

@@ -243,7 +244,7 @@ func CalculateDiscountCent(originalRentCent int64, platformFeeCent int64, discou
 	return discountCent
 }

-func AwardOrderCompleted(tx *gorm.DB, order *model.RentalOrder, actualRentCent int64, source string) error {
+func AwardOrderCompleted(tx *gorm.DB, order *model.RentalOrder, actualPureCoinCent int64, source string) error {
 	if tx == nil || order == nil || order.ID == 0 || order.RenterID == 0 {
 		return nil
 	}
@@ -271,10 +272,12 @@ func AwardOrderCompleted(tx *gorm.DB, order *model.RentalOrder, actualRentCent i
 	if err != nil {
 		return err
 	}
+	order.GrowthPointsBasisCent = maxInt64(actualPureCoinCent, 0)
+	order.GrowthPointsPerYuan = cfg.PointsPerYuan
 	if !cfg.Enabled {
 		return nil
 	}
-	points := PointsForRent(actualRentCent, cfg.PointsPerYuan)
+	points := PointsForPureCoin(actualPureCoinCent, cfg.PointsPerYuan)
 	if points <= 0 {
 		return nil
 	}
@@ -293,16 +296,18 @@ func AwardOrderCompleted(tx *gorm.DB, order *model.RentalOrder, actualRentCent i
 	}
 	now := time.Now()
 	ledger := model.RenterGrowthLedger{
-		UserID:       order.RenterID,
-		OrderID:      &order.ID,
-		Points:       points,
-		BeforePoints: beforePoints,
-		AfterPoints:  afterPoints,
-		BeforeLevel:  beforeLevel.Code,
-		AfterLevel:   afterLevel.Code,
-		Source:       source,
-		Remark:       "租号订单完成发放成长积分",
-		CreatedAt:    now,
+		UserID:          order.RenterID,
+		OrderID:         &order.ID,
+		Points:          points,
+		BasisAmountCent: actualPureCoinCent,
+		PointsPerYuan:   cfg.PointsPerYuan,
+		BeforePoints:    beforePoints,
+		AfterPoints:     afterPoints,
+		BeforeLevel:     beforeLevel.Code,
+		AfterLevel:      afterLevel.Code,
+		Source:          source,
+		Remark:          "租号订单完成发放成长积分",
+		CreatedAt:       now,
 	}
 	if err := tx.Create(&ledger).Error; err != nil {
 		return err
@@ -312,14 +317,90 @@ func AwardOrderCompleted(tx *gorm.DB, order *model.RentalOrder, actualRentCent i
 	return nil
 }

-func PointsForRent(actualRentCent int64, pointsPerYuan int64) int64 {
-	if actualRentCent <= 0 {
+// RevokeOrderCompleted 在已完成订单被全额人工退款后扣回该单已发放的成长积分。
+func RevokeOrderCompleted(tx *gorm.DB, order *model.RentalOrder) error {
+	if tx == nil || order == nil || order.ID == 0 || order.RenterID == 0 {
+		return nil
+	}
+	var existing model.RenterGrowthLedger
+	err := tx.Where("order_id = ? AND source = ?", order.ID, SourceOrderRefunded).First(&existing).Error
+	if err == nil {
+		return nil
+	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
+	}
+
+	points := order.GrowthPointsAwarded
+	if points <= 0 {
+		var awarded model.RenterGrowthLedger
+		if err := tx.Where("order_id = ? AND source = ?", order.ID, SourceOrderCompleted).First(&awarded).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return nil
+			}
+			return err
+		}
+		points = awarded.Points
+	}
+	if points <= 0 {
+		return nil
+	}
+
+	cfg, err := ConfigForTx(tx)
+	if err != nil {
+		return err
+	}
+	var user model.User
+	if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&user, order.RenterID).Error; err != nil {
+		return err
+	}
+	beforePoints := maxInt64(user.RenterGrowthPoints, 0)
+	revokedPoints := points
+	if revokedPoints > beforePoints {
+		revokedPoints = beforePoints
+	}
+	beforeLevel := LevelForPoints(cfg, beforePoints)
+	afterPoints := beforePoints - revokedPoints
+	afterLevel := LevelForPoints(cfg, afterPoints)
+	if !cfg.Enabled {
+		beforeLevel = LevelRule{Code: DefaultLevelCode, Name: DefaultLevelName}
+		afterLevel = beforeLevel
+	}
+	user.RenterGrowthPoints = afterPoints
+	user.RenterGrowthLevel = afterLevel.Code
+	if err := tx.Save(&user).Error; err != nil {
+		return err
+	}
+	orderID := order.ID
+	return tx.Create(&model.RenterGrowthLedger{
+		UserID:          order.RenterID,
+		OrderID:         &orderID,
+		Points:          -revokedPoints,
+		BasisAmountCent: order.GrowthPointsBasisCent,
+		PointsPerYuan:   order.GrowthPointsPerYuan,
+		BeforePoints:    beforePoints,
+		AfterPoints:     afterPoints,
+		BeforeLevel:     beforeLevel.Code,
+		AfterLevel:      afterLevel.Code,
+		Source:          SourceOrderRefunded,
+		Remark:          "已完成订单全额退款扣回成长积分",
+		CreatedAt:       time.Now(),
+	}).Error
+}
+
+func PointsForPureCoin(actualPureCoinCent int64, pointsPerYuan int64) int64 {
+	if actualPureCoinCent <= 0 {
 		return 0
 	}
 	if pointsPerYuan <= 0 {
 		pointsPerYuan = DefaultPointsPerYuan
 	}
-	return (actualRentCent / 100) * pointsPerYuan
+	return (actualPureCoinCent / 100) * pointsPerYuan
+}
+
+// PointsForRent 保留旧调用兼容，积分基数现统一解释为实际纯币金额。
+func PointsForRent(actualPureCoinCent int64, pointsPerYuan int64) int64 {
+	return PointsForPureCoin(actualPureCoinCent, pointsPerYuan)
 }

 func LevelForPoints(cfg Config, points int64) LevelRule {
@@ -159,6 +159,9 @@ func TestAwardOrderCompletedUpdatesUserAndIsIdempotent(t *testing.T) {
 	if order.GrowthPointsAwarded != 20 || order.GrowthPointsAwardedAt == nil {
 		t.Fatalf("order awarded = %d at %v, want 20 with time", order.GrowthPointsAwarded, order.GrowthPointsAwardedAt)
 	}
+	if order.GrowthPointsBasisCent != 2000 || order.GrowthPointsPerYuan != 1 {
+		t.Fatalf("order points basis = %d x %d, want 2000 x 1", order.GrowthPointsBasisCent, order.GrowthPointsPerYuan)
+	}
 	var savedUser model.User
 	if err := db.First(&savedUser, user.ID).Error; err != nil {
 		t.Fatalf("find user failed: %v", err)
@@ -186,4 +189,72 @@ func TestAwardOrderCompletedUpdatesUserAndIsIdempotent(t *testing.T) {
 	if ledgerCount != 1 {
 		t.Fatalf("ledger count = %d, want 1", ledgerCount)
 	}
+
+	if err := RevokeOrderCompleted(db, &order); err != nil {
+		t.Fatalf("RevokeOrderCompleted() error = %v", err)
+	}
+	if err := RevokeOrderCompleted(db, &order); err != nil {
+		t.Fatalf("second RevokeOrderCompleted() error = %v", err)
+	}
+	if err := db.First(&savedUser, user.ID).Error; err != nil {
+		t.Fatalf("find user after revoke failed: %v", err)
+	}
+	if savedUser.RenterGrowthPoints != 290 || savedUser.RenterGrowthLevel != DefaultLevelCode {
+		t.Fatalf("user growth after revoke = %d/%s, want 290/%s", savedUser.RenterGrowthPoints, savedUser.RenterGrowthLevel, DefaultLevelCode)
+	}
+	if err := db.Model(&model.RenterGrowthLedger{}).Where("order_id = ?", order.ID).Count(&ledgerCount).Error; err != nil {
+		t.Fatalf("count ledger after revoke failed: %v", err)
+	}
+	if ledgerCount != 2 {
+		t.Fatalf("ledger count after revoke = %d, want 2", ledgerCount)
+	}
+}
+
+func TestRevokeOrderCompletedRecordsIdempotencyWhenUserHasNoPoints(t *testing.T) {
+	db := database.NewTestDB()
+	if err := db.AutoMigrate(
+		&model.User{},
+		&model.RentalOrder{},
+		&model.SystemConfig{},
+		&model.RenterGrowthLedger{},
+	); err != nil {
+		t.Fatalf("migrate failed: %v", err)
+	}
+	user := model.User{Phone: "13800008889", RenterGrowthLevel: DefaultLevelCode}
+	if err := db.Create(&user).Error; err != nil {
+		t.Fatalf("create user failed: %v", err)
+	}
+	order := model.RentalOrder{
+		OrderNo:               "RG202607260002",
+		RenterID:              user.ID,
+		GrowthPointsAwarded:   20,
+		GrowthPointsBasisCent: 2000,
+		GrowthPointsPerYuan:   1,
+	}
+	if err := db.Create(&order).Error; err != nil {
+		t.Fatalf("create order failed: %v", err)
+	}
+	if err := RevokeOrderCompleted(db, &order); err != nil {
+		t.Fatalf("RevokeOrderCompleted() error = %v", err)
+	}
+	if err := db.Model(&model.User{}).Where("id = ?", user.ID).Update("renter_growth_points", 100).Error; err != nil {
+		t.Fatalf("add later points failed: %v", err)
+	}
+	if err := RevokeOrderCompleted(db, &order); err != nil {
+		t.Fatalf("repeat RevokeOrderCompleted() error = %v", err)
+	}
+	var saved model.User
+	if err := db.First(&saved, user.ID).Error; err != nil {
+		t.Fatalf("find user failed: %v", err)
+	}
+	if saved.RenterGrowthPoints != 100 {
+		t.Fatalf("later points after repeated callback = %d, want 100", saved.RenterGrowthPoints)
+	}
+	var ledger model.RenterGrowthLedger
+	if err := db.Where("order_id = ? AND source = ?", order.ID, SourceOrderRefunded).First(&ledger).Error; err != nil {
+		t.Fatalf("find revoke ledger failed: %v", err)
+	}
+	if ledger.Points != 0 {
+		t.Fatalf("revoke ledger points = %d, want 0", ledger.Points)
+	}
 }