first commit

server/internal/service/settings_service.go

@@ -0,0 +1,54 @@
+package service
+
+import (
+	"context"
+
+	"backupx/server/internal/apperror"
+	"backupx/server/internal/model"
+	"backupx/server/internal/repository"
+)
+
+type SettingsService struct {
+	configs repository.SystemConfigRepository
+}
+
+func NewSettingsService(configs repository.SystemConfigRepository) *SettingsService {
+	return &SettingsService{configs: configs}
+}
+
+// settingsKeys lists all user-editable setting keys.
+var settingsKeys = []string{
+	"site_name",
+	"language",
+	"timezone",
+	"backup_notification_enabled",
+}
+
+func (s *SettingsService) GetAll(ctx context.Context) (map[string]string, error) {
+	items, err := s.configs.List(ctx)
+	if err != nil {
+		return nil, apperror.Internal("SETTINGS_LIST_FAILED", "无法获取系统设置", err)
+	}
+	result := make(map[string]string, len(items))
+	for _, item := range items {
+		result[item.Key] = item.Value
+	}
+	return result, nil
+}
+
+func (s *SettingsService) Update(ctx context.Context, settings map[string]string) (map[string]string, error) {
+	allowed := make(map[string]bool, len(settingsKeys))
+	for _, key := range settingsKeys {
+		allowed[key] = true
+	}
+	for key, value := range settings {
+		if !allowed[key] {
+			continue
+		}
+		item := &model.SystemConfig{Key: key, Value: value}
+		if err := s.configs.Upsert(ctx, item); err != nil {
+			return nil, apperror.Internal("SETTINGS_UPDATE_FAILED", "无法更新系统设置", err)
+		}
+	}
+	return s.GetAll(ctx)
+}