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Make heartbeat more generic

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This commit is contained in:
Steve Klebanoff 2018-11-08 16:54:45 -08:00
parent dd4d3b10cf
commit e45b6c7e98
2 changed files with 29 additions and 23 deletions
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9
packages/instant/src/components/zero_ex_instant_provider.tsx
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@ -15,7 +15,7 @@ import { AffiliateInfo, AssetMetaData, Network, OrderSource } from '../types';
import { assetUtils } from '../util/asset';
import { errorFlasher } from '../util/error_flasher';
import { gasPriceEstimator } from '../util/gas_price_estimator';
import { AccountUpdateHeartbeat } from '../util/hearbeats';
import { generateAccountHeartbeater, Heartbeater } from '../util/hearbeats';
import { providerStateFactory } from '../util/provider_state_factory';
fonts.include();
@ -39,7 +39,7 @@ export interface ZeroExInstantProviderOptionalProps {
export class ZeroExInstantProvider extends React.Component<ZeroExInstantProviderProps> {
private readonly _store: Store;
private _accountUpdateHeartbeat?: AccountUpdateHeartbeat;
private _accountUpdateHeartbeat?: Heartbeater;
// TODO(fragosti): Write tests for this beast once we inject a provider.
private static _mergeDefaultStateWithProps(
props: ZeroExInstantProviderProps,
@ -97,8 +97,9 @@ export class ZeroExInstantProvider extends React.Component<ZeroExInstantProvider
}
// tslint:disable-next-line:no-floating-promises
// asyncData.fetchAccountInfoAndDispatchToStore(this._store);
this._accountUpdateHeartbeat = new AccountUpdateHeartbeat();
this._accountUpdateHeartbeat.start(this._store, ACCOUNT_UPDATE_INTERVAL_TIME_MS);
this._accountUpdateHeartbeat = generateAccountHeartbeater(this._store);
this._accountUpdateHeartbeat.start(ACCOUNT_UPDATE_INTERVAL_TIME_MS);
// warm up the gas price estimator cache just in case we can't
// grab the gas price estimate when submitting the transaction

43
packages/instant/src/util/hearbeats.ts
View File

@ -1,48 +1,53 @@
// TODO: rename file
import * as _ from 'lodash';
import { asyncData } from './../redux/async_data';
import { Store } from './../redux/store';
export class AccountUpdateHeartbeat {
type HeartbeatableFunction = () => Promise<void>;
export class Heartbeater {
private _intervalId?: number;
private _pendingRequest?: boolean;
private _store?: Store;
private _pendingRequest: boolean;
private _performingFunctionAsync: HeartbeatableFunction;
public start(store: Store, intervalTimeMs: number): void {
public constructor(_performingFunctionAsync: HeartbeatableFunction) {
this._performingFunctionAsync = _performingFunctionAsync;
this._pendingRequest = false;
}
public start(intervalTimeMs: number): void {
if (!_.isUndefined(this._intervalId)) {
throw new Error('Heartbeat is running, please stop before restarting');
}
this._store = store;
// Kick off initial first request
// tslint:disable-next-line:no-floating-promises
this._performActionAsync(true);
// Set interval for heartbeat
this._intervalId = window.setInterval(this._performActionAsync.bind(this, false), intervalTimeMs);
this._trackAndPerformAsync();
this._intervalId = window.setInterval(this._trackAndPerformAsync.bind(this), intervalTimeMs);
}
public stop(): void {
if (!_.isUndefined(this._intervalId)) {
if (this._intervalId) {
window.clearInterval(this._intervalId);
this._resetState();
}
}
private _resetState(): void {
this._intervalId = undefined;
this._pendingRequest = false;
this._store = undefined;
}
private async _performActionAsync(setLoading: boolean): Promise<void> {
if (this._pendingRequest || _.isUndefined(this._store)) {
private async _trackAndPerformAsync(): Promise<void> {
if (this._pendingRequest) {
return;
}
this._pendingRequest = true;
try {
await asyncData.fetchAccountInfoAndDispatchToStore(this._store, { setLoading });
this._performingFunctionAsync();
} finally {
this._pendingRequest = false;
}
}
}
export const generateAccountHeartbeater = (store: Store): Heartbeater => {
return new Heartbeater(async () => {
await asyncData.fetchAccountInfoAndDispatchToStore(store, { setLoading: false });
});
};