LibraryPanels: Improves export and import of library panels between orgs (#39214)

* Chore: adds tests to reducer

* Refactor: rewrite state

* Refactor: adds library panels to export

* wip

* Refactor: adds import library panels

* Refactor: changes UI

* Chore: pushing drone

* Update public/app/features/manage-dashboards/components/ImportDashboardForm.tsx

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

* Update public/app/features/manage-dashboards/components/ImportDashboardForm.tsx

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

* Chore: reverted unknown merge changes

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

pkg/api/dashboard_test.go

@@ -1245,6 +1245,10 @@ func (m *mockLibraryPanelService) ConnectLibraryPanelsForDashboard(c *models.Req
 	return nil
 }
 
+func (m *mockLibraryPanelService) ImportLibraryPanelsForDashboard(c *models.ReqContext, dash *models.Dashboard, folderID int64) error {
+	return nil
+}
+
 type mockLibraryElementService struct {
 }
 
@@ -1252,6 +1256,11 @@ func (l *mockLibraryElementService) CreateElement(c *models.ReqContext, cmd libr
 	return libraryelements.LibraryElementDTO{}, nil
 }
 
+// GetElement gets an element from a UID.
+func (l *mockLibraryElementService) GetElement(c *models.ReqContext, UID string) (libraryelements.LibraryElementDTO, error) {
+	return libraryelements.LibraryElementDTO{}, nil
+}
+
 // GetElementsForDashboard gets all connected elements for a specific dashboard.
 func (l *mockLibraryElementService) GetElementsForDashboard(c *models.ReqContext, dashboardID int64) (map[string]libraryelements.LibraryElementDTO, error) {
 	return map[string]libraryelements.LibraryElementDTO{}, nil

pkg/api/plugins.go

@@ -224,6 +224,11 @@ func (hs *HTTPServer) ImportDashboard(c *models.ReqContext, apiCmd dtos.ImportDa
 		return hs.dashboardSaveErrorToApiResponse(err)
 	}
 
+	err = hs.LibraryPanelService.ImportLibraryPanelsForDashboard(c, dash, apiCmd.FolderId)
+	if err != nil {
+		return response.Error(500, "Error while importing library panels", err)
+	}
+
 	err = hs.LibraryPanelService.ConnectLibraryPanelsForDashboard(c, dash)
 	if err != nil {
 		return response.Error(500, "Error while connecting library panels", err)