temp

internal/domains/product/entities/subscription.go

@@ -0,0 +1,59 @@
+package entities
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// SubscriptionStatus 订阅状态枚举
+type SubscriptionStatus string
+
+const (
+	SubscriptionStatusActive   SubscriptionStatus = "active"   // 活跃
+	SubscriptionStatusInactive SubscriptionStatus = "inactive" // 非活跃
+	SubscriptionStatusExpired  SubscriptionStatus = "expired"  // 已过期
+	SubscriptionStatusCanceled SubscriptionStatus = "canceled" // 已取消
+)
+
+// Subscription 订阅实体
+type Subscription struct {
+	ID        string             `gorm:"primaryKey;type:varchar(36)" comment:"订阅ID"`
+	UserID    string             `gorm:"type:varchar(36);not null;index" comment:"用户ID"`
+	ProductID string             `gorm:"type:varchar(36);not null;index" comment:"产品ID"`
+	Status    SubscriptionStatus `gorm:"type:varchar(20);not null;default:'active'" comment:"订阅状态"`
+	Price     float64            `gorm:"type:decimal(10,2);not null" comment:"订阅价格"`
+	APIUsed   int64              `gorm:"default:0" comment:"已使用API调用次数"`
+
+	// 关联关系
+	Product *Product `gorm:"foreignKey:ProductID" comment:"产品"`
+
+	CreatedAt time.Time      `gorm:"autoCreateTime" comment:"创建时间"`
+	UpdatedAt time.Time      `gorm:"autoUpdateTime" comment:"更新时间"`
+	DeletedAt gorm.DeletedAt `gorm:"index" comment:"软删除时间"`
+}
+
+// IsValid 检查订阅是否有效
+func (s *Subscription) IsValid() bool {
+	return s.DeletedAt.Time.IsZero()
+}
+
+// IncrementAPIUsage 增加API使用次数
+func (s *Subscription) IncrementAPIUsage(count int64) {
+	s.APIUsed += count
+}
+
+// Activate 激活订阅
+func (s *Subscription) Activate() {
+	s.Status = SubscriptionStatusActive
+}
+
+// Deactivate 停用订阅
+func (s *Subscription) Deactivate() {
+	s.Status = SubscriptionStatusInactive
+}
+
+// ResetAPIUsage 重置API使用次数
+func (s *Subscription) ResetAPIUsage() {
+	s.APIUsed = 0
+}