[Management] Handle commas as separations in the query for CCS purposes (#16535) (#16605)

* Handle commas as separations in the query for CCS purposes

* Add tests

* Limit this to ccs queries, which just means they contain a :

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/lib/__tests__/is_query_a_match.test.js

@@ -21,6 +21,11 @@ describe('isQueryAMatch', () => {
     it('for a pattern that is only a wildcard', () => {
       expect(isQueryAMatch('*', 'es')).toBeTruthy();
     });
+
+    it('for a pattern that contains commas', () => {
+      expect(isQueryAMatch('cluster_one:kibana,cluster_two:kibana', 'cluster_one:kibana')).toBeTruthy();
+      expect(isQueryAMatch('cluster_one:k*,cluster_two:kibana', 'cluster_one:kibana')).toBeTruthy();
+    });
   });
 
   describe('returns false', () => {
@@ -31,5 +36,9 @@ describe('isQueryAMatch', () => {
     it('for a pattern with wildcards but does not remotely match', () => {
       expect(isQueryAMatch('k*b*', 'es')).toBeFalsy();
     });
+
+    it('for a pattern that contains commas but is not a CCS query', () => {
+      expect(isQueryAMatch('kibana,es', 'kibana')).toBeFalsy();
+    });
   });
 });

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/lib/is_query_a_match.js

@@ -1,3 +1,7 @@
+function isCCSQuery(query) {
+  return query.includes(':');
+}
+
 export const isQueryAMatch = (query, name) => {
   if (name === query) {
     return true;
@@ -20,5 +24,11 @@ export const isQueryAMatch = (query, name) => {
     return false;
   }
 
+  if (query.includes(',')) {
+    return query.split(',').reduce((isMatch, subQuery) => {
+      return isMatch || isCCSQuery(subQuery) && isQueryAMatch(subQuery, name);
+    }, false);
+  }
+
   return false;
 };