49 lines
1.1 KiB
TypeScript
49 lines
1.1 KiB
TypeScript
import { observable } from "mobx";
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import Storage from "@shared/utils/Storage";
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export enum Feature {
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/** New collection permissions UI */
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newCollectionSharing = "newCollectionSharing",
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}
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/** Default values for feature flags */
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const FeatureDefaults: Record<Feature, boolean> = {
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[Feature.newCollectionSharing]: true,
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};
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/**
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* A simple feature flagging system that stores flags in browser storage.
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*/
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export class FeatureFlags {
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public static isEnabled(flag: Feature) {
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// init on first read
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if (this.initalized === false) {
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this.cache = new Set();
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for (const key of Object.values(Feature)) {
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const value = Storage.get(key);
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if (value === true) {
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this.cache.add(key);
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}
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}
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this.initalized = true;
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}
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return this.cache.has(flag) ? true : FeatureDefaults[flag] ?? false;
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}
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public static enable(flag: Feature) {
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this.cache.add(flag);
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Storage.set(flag, true);
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}
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public static disable(flag: Feature) {
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this.cache.delete(flag);
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Storage.set(flag, false);
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}
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@observable
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private static cache: Set<Feature> = new Set();
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private static initalized = false;
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}
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