feat: change the type of price in item and add currency to item (#21)

Co-authored-by: xiaoweii <xiaoweii@amazom.com>

Author: zhu-xiaowei

src/types/Analytics.ts

@@ -67,12 +67,11 @@ export interface Item {
 	id?: string;
 	location_id?: string;
 	name?: string;
-	price?: Currency;
+	price?: number;
+	currency?: string;
 	quantity?: number;
 }
 
-type Currency = string | number;
-
 export interface ClickstreamEvent {
 	name: string;
 	attributes?: ClickstreamAttribute;

test/provider/EventRecorder.test.ts

@@ -87,7 +87,8 @@ describe('EventRecorder test', () => {
 			creative_name: longValue,
 			creative_slot: longValue,
 			location_id: longValue,
-			price: longValue,
+			price: 99.9,
+			currency: "$",
 			quantity: 1000000,
 		};
 		for (let i = 0; i < 100; i++) {