feat: 引入循环交易管理、邮件通知和用户设置功能

internal/service/user_settings_service.go

@@ -9,10 +9,11 @@ import (
 
 // Service layer errors for user settings
 var (
-	ErrInvalidIconLayout       = errors.New("invalid icon layout, must be one of: four, five, six")
-	ErrInvalidImageCompression = errors.New("invalid image compression, must be one of: low, medium, high")
-	ErrDefaultAccountNotFound  = errors.New("default account not found")
-	ErrInvalidDefaultAccount   = errors.New("invalid default account")
+	ErrInvalidIconLayout          = errors.New("invalid icon layout, must be one of: four, five, six")
+	ErrInvalidImageCompression    = errors.New("invalid image compression, must be one of: low, medium, high")
+	ErrDefaultAccountNotFound     = errors.New("default account not found")
+	ErrInvalidDefaultAccount      = errors.New("invalid default account")
+	ErrInvalidNotificationChannel = errors.New("invalid notification channel")
 )
 
 // UserSettingsRepositoryInterface defines the interface for user settings repository operations
@@ -37,6 +38,8 @@ type UserSettingsInput struct {
 	ShowRefundBtn        *bool   `json:"show_refund_btn"`
 	CurrentLedgerID      *uint   `json:"current_ledger_id"`
 	Phone                *string `json:"phone"`
+	Email                *string `json:"email"`
+	NotificationChannel  *string `json:"notification_channel"`
 }
 
 // DefaultAccountsInput represents the input data for updating default accounts
@@ -153,6 +156,21 @@ func (s *UserSettingsService) UpdateSettings(userID uint, input UserSettingsInpu
 		settings.Phone = *input.Phone
 	}
 
+	if input.Email != nil {
+		settings.Email = *input.Email
+	}
+
+	if input.NotificationChannel != nil {
+		channel := *input.NotificationChannel
+		if channel != models.NotificationChannelSMS &&
+			channel != models.NotificationChannelEmail &&
+			channel != models.NotificationChannelBoth &&
+			channel != models.NotificationChannelNone {
+			return nil, ErrInvalidNotificationChannel
+		}
+		settings.NotificationChannel = channel
+	}
+
 	// Save to database
 	if err := s.repo.Update(settings); err != nil {
 		return nil, fmt.Errorf("failed to update settings: %w", err)