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import * as _ from 'lodash';
import { ObjectMap, Order } from 'ts/types';
import { utils } from 'ts/utils/utils';
export interface HeapAnalytics {
loaded: boolean;
identify(id: string, idType: string): void;
track(eventName: string, eventProperties?: ObjectMap<string | number>): void;
resetIdentity(): void;
addUserProperties(properties: ObjectMap<string | number>): void;
addEventProperties(properties: ObjectMap<string | number>): void;
removeEventProperty(property: string): void;
clearEventProperties(): void;
}
export class Analytics {
private _heap: HeapAnalytics;
public static init(): Analytics {
return new Analytics(Analytics.getHeap());
}
public static getHeap(): HeapAnalytics {
const heap = (window as any).heap;
if (!_.isUndefined(heap)) {
return heap;
} else {
throw new Error('Could not find the Heap SDK on the page.');
}
}
constructor(heap: HeapAnalytics) {
this._heap = heap;
}
// tslint:disable:no-floating-promises
// HeapAnalytics Wrappers
public identify(id: string, idType: string): void {
this._heapLoadedGuardAsync(() => this._heap.identify(id, idType));
}
public track(eventName: string, eventProperties?: ObjectMap<string | number>): void {
this._heapLoadedGuardAsync(() => this._heap.track(eventName, eventProperties));
}
public resetIdentity(): void {
this._heapLoadedGuardAsync(() => this._heap.resetIdentity());
}
public addUserProperties(properties: ObjectMap<string | number>): void {
this._heapLoadedGuardAsync(() => this._heap.addUserProperties(properties));
}
public addEventProperties(properties: ObjectMap<string | number>): void {
this._heapLoadedGuardAsync(() => this._heap.addEventProperties(properties));
}
public removeEventProperty(property: string): void {
this._heapLoadedGuardAsync(() => this._heap.removeEventProperty(property));
}
public clearEventProperties(): void {
this._heapLoadedGuardAsync(() => this._heap.clearEventProperties());
}
// tslint:enable:no-floating-promises
// Custom methods
public trackOrderEvent(eventName: string, order: Order): void {
const orderLoggingData = {
takerTokenAmount: order.signedOrder.takerTokenAmount,
makeTokenAmount: order.signedOrder.makerTokenAmount,
takerToken: order.metadata.takerToken.symbol,
makerToken: order.metadata.makerToken.symbol,
};
this.track(eventName, orderLoggingData);
}
/**
* Heap is not available as a UMD module, and additionally has the strange property of replacing itself with
* a different object once it's loaded.
* Instead of having an await call before every analytics use, we opt to have the awaiting logic in here by
* guarding every API call with the guard below.
*/
private async _heapLoadedGuardAsync(callback: () => void): Promise<void> {
if (this._heap.loaded) {
callback();
return undefined;
}
await utils.onPageLoadPromise;
// HACK: Reset heap to loaded heap
this._heap = (window as any).heap;
callback();
}
}
export const analytics = Analytics.init();
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