优化弹窗和后台设置字体

backend/internal/modules/systemconfig/service.go

@@ -48,6 +48,17 @@ func (s *Service) SalePriceConfig() (*PublishSalePriceConfig, error) {
 	return &config, nil
 }
 
+func (s *Service) OrderAgreements() (*OrderAgreementsDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	agreements, err := s.orderAgreements()
+	if err != nil {
+		return nil, err
+	}
+	return &agreements, nil
+}
+
 func (s *Service) publishOptions() (PublishOptionsDTO, error) {
 	value, err := s.repo.FindValue(publishOptionsConfigKey)
 	if err != nil {
@@ -74,6 +85,19 @@ func (s *Service) salePriceConfig() (PublishSalePriceConfig, error) {
 	return config, nil
 }
 
+func (s *Service) orderAgreements() (OrderAgreementsDTO, error) {
+	value, err := s.repo.FindValue(orderAgreementsConfigKey)
+	if err != nil {
+		return OrderAgreementsDTO{}, err
+	}
+	agreements := DefaultOrderAgreements()
+	if err := json.Unmarshal([]byte(value), &agreements); err != nil {
+		agreements = DefaultOrderAgreements()
+	}
+	normalizeOrderAgreements(&agreements)
+	return agreements, nil
+}
+
 func (s *Service) HomeAnnouncements() (*HomeAnnouncementsDTO, error) {
 	if s.repo == nil {
 		return nil, ErrDependencyUnavailable
@@ -179,6 +203,26 @@ func normalizeHomeBanners(items []HomeBannerItem) []HomeBannerItem {
 	return normalized
 }
 
+func normalizeOrderAgreements(agreements *OrderAgreementsDTO) {
+	defaults := DefaultOrderAgreements()
+	agreements.VirtualAssetPurchase.Title = strings.TrimSpace(agreements.VirtualAssetPurchase.Title)
+	agreements.VirtualAssetPurchase.Content = strings.TrimSpace(agreements.VirtualAssetPurchase.Content)
+	agreements.RenterAgreement.Title = strings.TrimSpace(agreements.RenterAgreement.Title)
+	agreements.RenterAgreement.Content = strings.TrimSpace(agreements.RenterAgreement.Content)
+	if agreements.VirtualAssetPurchase.Title == "" {
+		agreements.VirtualAssetPurchase.Title = defaults.VirtualAssetPurchase.Title
+	}
+	if agreements.VirtualAssetPurchase.Content == "" {
+		agreements.VirtualAssetPurchase.Content = defaults.VirtualAssetPurchase.Content
+	}
+	if agreements.RenterAgreement.Title == "" {
+		agreements.RenterAgreement.Title = defaults.RenterAgreement.Title
+	}
+	if agreements.RenterAgreement.Content == "" {
+		agreements.RenterAgreement.Content = defaults.RenterAgreement.Content
+	}
+}
+
 func normalizePublishOptions(options *PublishOptionsDTO) {
 	defaults := DefaultPublishOptions()
 	if len(options.ServerOptions) == 0 {