UserService: use the UserService instead of calling sqlstore directly (#55745)

* UserService: update callers to use the UserService instead of calling sqlstore directly

There is one major change hiding in this PR. UserService.Delete originally called a number of services to delete user-related records. I moved everything except the actual call to the user table, and moved those into the API. This was done to avoid dependencies cycles; many of our services depend on the user service, so the user service itself should have as few dependencies as possible.

pkg/services/accesscontrol/resourcepermissions/service.go

@@ -51,7 +51,7 @@ type Store interface {
 func New(
 	options Options, cfg *setting.Cfg, router routing.RouteRegister, license models.Licensing,
 	ac accesscontrol.AccessControl, service accesscontrol.Service, sqlStore *sqlstore.SQLStore,
-	teamService team.Service,
+	teamService team.Service, userService user.Service,
 ) (*Service, error) {
 	var permissions []string
 	actionSet := make(map[string]struct{})
@@ -83,6 +83,7 @@ func New(
 		sqlStore:    sqlStore,
 		service:     service,
 		teamService: teamService,
+		userService: userService,
 	}
 
 	s.api = newApi(ac, router, s)
@@ -110,6 +111,7 @@ type Service struct {
 	actions     []string
 	sqlStore    *sqlstore.SQLStore
 	teamService team.Service
+	userService user.Service
 }
 
 func (s *Service) GetPermissions(ctx context.Context, user *user.SignedInUser, resourceID string) ([]accesscontrol.ResourcePermission, error) {
@@ -286,10 +288,8 @@ func (s *Service) validateUser(ctx context.Context, orgID, userID int64) error {
 		return ErrInvalidAssignment
 	}
 
-	if err := s.sqlStore.GetSignedInUser(ctx, &models.GetSignedInUserQuery{OrgId: orgID, UserId: userID}); err != nil {
-		return err
-	}
-	return nil
+	_, err := s.userService.GetSignedInUser(ctx, &user.GetSignedInUserQuery{OrgID: orgID, UserID: userID})
+	return err
 }
 
 func (s *Service) validateTeam(ctx context.Context, orgID, teamID int64) error {