From 280d2dba91143105e6a1d37c40154695b452c931 Mon Sep 17 00:00:00 2001
From: Dominik Prokop <dominik.prokop@grafana.com>
Date: Wed, 15 Apr 2020 14:53:19 +0200
Subject: [PATCH] locationUtil dependencies type

---
 packages/grafana-data/src/utils/location.ts | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/packages/grafana-data/src/utils/location.ts b/packages/grafana-data/src/utils/location.ts
index b7906b58c17..0b2099938d4 100644
--- a/packages/grafana-data/src/utils/location.ts
+++ b/packages/grafana-data/src/utils/location.ts
@@ -32,6 +32,12 @@ const assureBaseUrl = (url: string) => {
   return url;
 };
 
+interface LocationUtilDependencies {
+  getConfig: () => GrafanaConfig;
+  getTimeRangeForUrl: () => RawTimeRange;
+  buildParamsFromVariables: (params: any, scopedVars?: ScopedVars) => string;
+}
+
 export const locationUtil = {
   /**
    *
@@ -40,15 +46,11 @@ export const locationUtil = {
    * @param getTimeRangeForUrl
    * @internal
    */
-  initialise: ({
-    getConfig,
-    buildParamsFromVariables,
-    getTimeRangeForUrl,
-  }: {
-    getConfig: () => GrafanaConfig;
-    getTimeRangeForUrl: () => RawTimeRange;
-    buildParamsFromVariables: (params: any, scopedVars?: ScopedVars) => string;
-  }) => {
+  initialise: ({ getConfig, buildParamsFromVariables, getTimeRangeForUrl }: LocationUtilDependencies) => {
+    if (grafanaConfig && getTimeRangeUrlParams && getVariablesUrlParams) {
+      throw new Error('locationUtil already initialized');
+    }
+
     grafanaConfig = getConfig;
     getTimeRangeUrlParams = getTimeRangeForUrl;
     getVariablesUrlParams = buildParamsFromVariables;