repository

type ProductRepository interface {
	Create(product *models.Product) error
	GetByID(id uint) (*models.Product, error)
	Update(id uint, updates map[string]interface{}) error
	Delete(id uint) error
	List(query *models.ProductQuery) ([]*models.Product, int64, error)
}

type UserRepository interface {
	Create(user *models.User) error
	GetByID(id uint) (*models.User, error)
	GetByUsername(username string) (*models.User, error)
	GetByEmail(email string) (*models.User, error)
	Update(id uint, updates map[string]interface{}) error
	Delete(id uint) error
	List(offset, limit int) ([]*models.User, int64, error)
}