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add code to add/remove from subscriber array

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Brendan Chen
2025-02-02 13:12:20 -08:00
parent 047ff3a56e
commit 01cbad3a73
1 changed files with 8 additions and 0 deletions
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8
src/repositories/UnoptimizedInMemoryRepository.ts
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@@ -1,5 +1,6 @@
import { GetterSetterRepository } from "./GetterSetterRepository";
import { IEntityWithId, IEta, IOrderedStop, IRoute, IShuttle, IStop, ISystem } from "../entities/entities";
import { TupleKey } from "../types/TupleKey";
/**
* An unoptimized in memory repository.
@@ -14,6 +15,8 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
private etas: IEta[] = [];
private orderedStops: IOrderedStop[] = [];
private subscribers: ((eta: IEta) => void)[] = [];
public async getSystems() {
return this.systems;
}
@@ -59,9 +62,14 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
}
public subscribeToEtaChanges(listener: (eta: IEta) => void) {
this.subscribers.push(listener);
}
public unsubscribeFromEtaChanges(listener: (eta: IEta) => void) {
const index = this.subscribers.findIndex((existingListener) => existingListener == listener);
if (index >= 0) {
this.subscribers.splice(index, 1);
}
}
public async getEtaForShuttleAndStopId(shuttleId: string, stopId: string) {