lik/ts/lik.interestmap.interest.ts

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import * as plugins from './lik.plugins.js';
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import { InterestMap, type IInterestComparisonFunc } from './lik.interestmap.js';
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export interface IInterestOptions<DTInterestFullfillment> {
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markLostAfterDefault: number;
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defaultFullfillment?: DTInterestFullfillment;
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}
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export class Interest<DTInterestId, DTInterestFullfillment> {
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public options: IInterestOptions<DTInterestFullfillment>;
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private interestMapRef: InterestMap<DTInterestId, DTInterestFullfillment>;
public originalInterest: DTInterestId;
public comparisonFunc: IInterestComparisonFunc<DTInterestId>;
public destructionTimer = new plugins.smarttime.Timer(10000);
public isFullfilled = false;
/**
* a generic store to store objects in that are needed for fullfillment;
*/
public fullfillmentStore: any[] = [];
/**
* quick access to a string that makes the interest comparable for checking for similar interests
*/
public get comparisonString() {
return this.comparisonFunc(this.originalInterest);
}
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private interestDeferred: plugins.smartpromise.Deferred<DTInterestFullfillment> =
new plugins.smartpromise.Deferred();
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public interestFullfilled = this.interestDeferred.promise;
/**
* fullfill the interest
*/
public fullfillInterest(objectArg: DTInterestFullfillment) {
this.isFullfilled = true;
this.fullfillmentStore = [];
this.interestDeferred.resolve(objectArg);
}
/**
*
*/
constructor(
interestMapArg: InterestMap<DTInterestId, DTInterestFullfillment>,
interestArg: DTInterestId,
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comparisonFuncArg: IInterestComparisonFunc<DTInterestId>,
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optionsArg?: IInterestOptions<DTInterestFullfillment>
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) {
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this.interestMapRef = interestMapArg;
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this.originalInterest = interestArg;
this.comparisonFunc = comparisonFuncArg;
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this.options = optionsArg;
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this.destructionTimer.completed.then(() => {
this.destroy();
});
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if (this.options?.markLostAfterDefault) {
plugins.smartdelay.delayFor(this.options.markLostAfterDefault).then(this.markLost);
}
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}
// ===============================
// LIFECYCLE MANAGEMENT
// ===============================
/**
* self destructs the interest
*/
public destroy() {
this.interestMapRef.removeInterest(this);
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if (!this.isFullfilled && this.options.defaultFullfillment) {
this.fullfillInterest(this.options.defaultFullfillment);
}
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}
/**
* notifies the interest that the interest in it has been lost
*/
public markLost() {
this.destructionTimer.start();
}
/**
* notifies the interest that the interest in it has been restored
*/
public renew() {
this.destructionTimer.reset();
}
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}