up n_m

node_modules/search-insights/lib/utils/extractAdditionalParams.ts

@@ -0,0 +1,25 @@
+import type { InsightsAdditionalEventParams } from "../types";
+
+export type WithAdditionalParams<TEventType> =
+  | InsightsAdditionalEventParams
+  | TEventType;
+
+export function extractAdditionalParams<TEventType extends { index: string }>(
+  params: Array<InsightsAdditionalEventParams | TEventType>
+): { events: TEventType[]; additionalParams?: InsightsAdditionalEventParams } {
+  return params.reduce(
+    ({ events, additionalParams }, param) => {
+      // Real events all have `index` as a mandatory parameter, which we
+      // can rely on to distinguish them from additional parameters
+      if ("index" in param) {
+        return { additionalParams, events: [...events, param] };
+      }
+
+      return { events, additionalParams: param };
+    },
+    {
+      events: [] as TEventType[],
+      additionalParams: undefined as InsightsAdditionalEventParams | undefined
+    }
+  );
+}