You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: admin.go
    path of file: ./repos/grafana/pkg/services/navtree/navtreeimpl
    
    the code of the file until where you have to start completion: package navtreeimpl

import (
	ac "github.com/grafana/grafana/pkg/services/accesscontrol"
	"github.com/grafana/grafana/pkg/services/accesscontrol/ssoutils"
	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
	"github.com/grafana/grafana/pkg/services/correlations"
	"github.com/grafana/grafana/pkg/services/featuremgmt"
	"github.com/grafana/grafana/pkg/services/navtree"
	"github.com/grafana/grafana/pkg/services/pluginsintegration/pluginaccesscontrol"
	"github.com/grafana/grafana/pkg/services/serviceaccounts"
)

func (s *ServiceImpl) getAdminNode(c *contextmodel.ReqContext) (*navtree.NavLink, error) {
	var configNodes []*navtree.NavLink
	ctx := c.Req.Context()
	hasAccess := ac.HasAccess(s.accessControl, c)
	hasGlobalAccess := ac.HasGlobalAccess(s.accessControl, s.accesscontrolService, c)
	orgsAccessEvaluator := ac.EvalPermission(ac.ActionOrgsRead)
	authConfigUIAvailable := s.license.FeatureEnabled("saml") || s.cfg.LDAPAuthEnabled

	// FIXME: If plugin admin is disabled or externally managed, server admins still need to access the page, this is why
	// while we don't have a permissions for listing plugins the legacy check has to stay as a default
	if pluginaccesscontrol.ReqCanAdminPlugins(s.cfg)(c) || hasAccess(pluginaccesscontrol.AdminAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Plugins",
			Id:       "plugins",
			SubTitle: "Extend the Grafana experience with plugins",
			Icon:     "plug",
			Url:      s.cfg.AppSubURL + "/plugins",
		})
	}

	if hasAccess(ac.EvalAny(ac.EvalPermission(ac.ActionOrgUsersRead), ac.EvalPermission(ac.ActionUsersRead, ac.ScopeGlobalUsersAll))) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Users", SubTitle: "Manage users in Grafana", Id: "global-users", Url: s.cfg.AppSubURL + "/admin/users", Icon: "user",
		})
	}

	if hasAccess(ac.TeamsAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Teams",
			Id:       "teams",
			SubTitle: "Groups of users that have common dashboard and permission needs",
			Icon:     "users-alt",
			Url:      s.cfg.AppSubURL + "/org/teams",
		})
	}

	if enableServiceAccount(s, c) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Service accounts",
			Id:       "serviceaccounts",
			SubTitle: "Use service accounts to run automated workloads in Grafana",
			Icon:     "gf-service-account",
			Url:      s.cfg.AppSubURL + "/org/serviceaccounts",
		})
	}

	disabled, err := s.apiKeyService.IsDisabled(ctx, c.SignedInUser.GetOrgID())
	if err != nil {
		return nil, err
	}
	if hasAccess(ac.ApiKeyAccessEvaluator) && !disabled {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "API keys",
			Id:       "apikeys",
			SubTitle: "Manage and create API keys that are used to interact with Grafana HTTP APIs",
			Icon:     "key-skeleton-alt",
			Url:      s.cfg.AppSubURL + "/org/apikeys",
		})
	}

	if hasAccess(ac.OrgPreferencesAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Default preferences",
			Id:       "org-settings",
			SubTitle: "Manage preferences across an organization",
			Icon:     "sliders-v-alt",
			Url:      s.cfg.AppSubURL + "/org",
		})
	}

	if authConfigUIAvailable && hasAccess(ssoutils.EvalAuthenticationSettings(s.cfg)) ||
		(hasAccess(ssoutils.OauthSettingsEvaluator(s.cfg)) && s.features.IsEnabled(ctx, featuremgmt.FlagSsoSettingsApi)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Authentication",
			Id:       "authentication",
			SubTitle: "Manage your auth settings and configure single sign-on",
			Icon:     "signin",
			Url:      s.cfg.AppSubURL + "/admin/authentication",
		})
	}

	if hasAccess(ac.EvalPermission(ac.ActionSettingsRead, ac.ScopeSettingsAll)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Settings", SubTitle: "View the settings defined in your Grafana config", Id: "server-settings", Url: s.cfg.AppSubURL + "/admin/settings", Icon: "sliders-v-alt",
		})
	}

	if hasGlobalAccess(orgsAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Organizations", SubTitle: "Isolated instances of Grafana running on the same server", Id: "global-orgs", Url: s.cfg.AppSubURL + "/admin/orgs", Icon: "building",
		})
	}

	if s.features.IsEnabled(ctx, featuremgmt.FlagFeatureToggleAdminPage) && hasAccess(ac.EvalPermission(ac.ActionFeatureManagementRead)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Feature Toggl
    
func (s *ServiceImpl) getAdminNode(c *contextmodel.ReqContext) (*navtree.NavLink, error) {
	var configNodes []*navtree.NavLink
	ctx := c.Req.Context()
	hasAccess := ac.HasAccess(s.accessControl, c)
	hasGlobalAccess := ac.HasGlobalAccess(s.accessControl, s.accesscontrolService, c)
	orgsAccessEvaluator := ac.EvalPermission(ac.ActionOrgsRead)
	authConfigUIAvailable := s.license.FeatureEnabled("saml") || s.cfg.LDAPAuthEnabled

	// FIXME: If plugin admin is disabled or externally managed, server admins still need to access the page, this is why
	// while we don't have a permissions for listing plugins the legacy check has to stay as a default
	if pluginaccesscontrol.ReqCanAdminPlugins(s.cfg)(c) || hasAccess(pluginaccesscontrol.AdminAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Plugins",
			Id:       "plugins",
			SubTitle: "Extend the Grafana experience with plugins",
			Icon:     "plug",
			Url:      s.cfg.AppSubURL + "/plugins",
		})
	}

	if hasAccess(ac.EvalAny(ac.EvalPermission(ac.ActionOrgUsersRead), ac.EvalPermission(ac.ActionUsersRead, ac.ScopeGlobalUsersAll))) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Users", SubTitle: "Manage users in Grafana", Id: "global-users", Url: s.cfg.AppSubURL + "/admin/users", Icon: "user",
		})
	}

	if hasAccess(ac.TeamsAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Teams",
			Id:       "teams",
			SubTitle: "Groups of users that have common dashboard and permission needs",
			Icon:     "users-alt",
			Url:      s.cfg.AppSubURL + "/org/teams",
		})
	}

	if enableServiceAccount(s, c) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Service accounts",
			Id:       "serviceaccounts",
			SubTitle: "Use service accounts to run automated workloads in Grafana",
			Icon:     "gf-service-account",
			Url:      s.cfg.AppSubURL + "/org/serviceaccounts",
		})
	}

	disabled, err := s.apiKeyService.IsDisabled(ctx, c.SignedInUser.GetOrgID())
	if err != nil {
		return nil, err
	}
	if hasAccess(ac.ApiKeyAccessEvaluator) && !disabled {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "API keys",
			Id:       "apikeys",
			SubTitle: "Manage and create API keys that are used to interact with Grafana HTTP APIs",
			Icon:     "key-skeleton-alt",
			Url:      s.cfg.AppSubURL + "/org/apikeys",
		})
	}

	if hasAccess(ac.OrgPreferencesAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Default preferences",
			Id:       "org-settings",
			SubTitle: "Manage preferences across an organization",
			Icon:     "sliders-v-alt",
			Url:      s.cfg.AppSubURL + "/org",
		})
	}

	if authConfigUIAvailable && hasAccess(ssoutils.EvalAuthenticationSettings(s.cfg)) ||
		(hasAccess(ssoutils.OauthSettingsEvaluator(s.cfg)) && s.features.IsEnabled(ctx, featuremgmt.FlagSsoSettingsApi)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Authentication",
			Id:       "authentication",
			SubTitle: "Manage your auth settings and configure single sign-on",
			Icon:     "signin",
			Url:      s.cfg.AppSubURL + "/admin/authentication",
		})
	}

	if hasAccess(ac.EvalPermission(ac.ActionSettingsRead, ac.ScopeSettingsAll)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Settings", SubTitle: "View the settings defined in your Grafana config", Id: "server-settings", Url: s.cfg.AppSubURL + "/admin/settings", Icon: "sliders-v-alt",
		})
	}

	if hasGlobalAccess(orgsAccessEvaluator) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text: "Organizations", SubTitle: "Isolated instances of Grafana running on the same server", Id: "global-orgs", Url: s.cfg.AppSubURL + "/admin/orgs", Icon: "building",
		})
	}

	if s.features.IsEnabled(ctx, featuremgmt.FlagFeatureToggleAdminPage) && hasAccess(ac.EvalPermission(ac.ActionFeatureManagementRead)) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Feature Toggles",
			SubTitle: "View and edit feature toggles",
			Id:       "feature-toggles",
			Url:      s.cfg.AppSubURL + "/admin/featuretoggles",
			Icon:     "toggle-on",
		})
	}

	if s.features.IsEnabled(ctx, featuremgmt.FlagCorrelations) && hasAccess(correlations.ConfigurationPageAccess) {
		configNodes = append(configNodes, &navtree.NavLink{
			Text:     "Correlations",
			Icon:     "gf-glue",
			SubTitle: "Add and configure correlations",
			Id:       "correlations",
			Url:      s.cfg.AppSubURL + "/datasources/correlations",
		})
	}

	if hasAccess(ac.EvalPermission(ac.ActionSettingsRead, ac.ScopeSettingsAll)) && s.features.IsEnabled(ctx, featuremgmt.FlagStorage) {
		storage := &navtree.NavLink{
			Text:     "Storage",
			Id:       "storage",
			SubTitle: "Manage file storage",
			Icon:     "cube",
			Url:      s.cfg.AppSubURL + "/admin/storage",
		}
		configNodes = append(configNodes, storage)
	}

	if s.features.IsEnabled(ctx, featuremgmt.FlagOnPremToCloudMigrations) && c.SignedInUser.IsGrafanaAdmin {
		migrateToCloud := &navtree.NavLink{
			Text:     "Migrate to Grafana Cloud",
			Id:       "migrate-to-cloud",
			SubTitle: "Copy configuration from your self-managed installation to a cloud stack",
			Url:      s.cfg.AppSubURL + "/admin/migrate-to-cloud",
		}
		configNodes = append(configNodes, migrateToCloud)
	}

	configNode := &navtree.NavLink{
		Id:         navtree.NavIDCfg,
		Text:       "Administration",
		SubTitle:   "Organization: " + c.SignedInUser.GetOrgName(),
		Icon:       "cog",
		SortWeight: navtree.WeightConfig,
		Children:   configNodes,
		Url:        "/admin",
	}

	return configNode, nil
}