41 lines
1.0 KiB
TypeScript
41 lines
1.0 KiB
TypeScript
import { persistentAtom } from "@nanostores/persistent";
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import { getUrlDomain } from "@scripts/util";
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import { action, onMount } from "nanostores";
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const OLD_LOCAL_STORAGE_KEY = "recentInstances";
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const LOCAL_STORAGE_KEY = "savedInstances";
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const CAPACITY = 5;
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export const $savedInstances = persistentAtom<Set<string>>(
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LOCAL_STORAGE_KEY,
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new Set(),
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{
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encode: (set) => JSON.stringify([...set]),
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decode: (value) => new Set(JSON.parse(value)),
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},
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);
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onMount($savedInstances, () => {
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// XXX: The conversion to a domain need to be done to support legacy
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// users, who may have full URLs in their Storage
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const oldItem = localStorage.getItem(OLD_LOCAL_STORAGE_KEY);
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if (!oldItem) {
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return;
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}
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$savedInstances.set(
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new Set(
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JSON.parse(oldItem).map((instanceUrl: string) =>
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getUrlDomain(instanceUrl),
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),
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),
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);
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localStorage.removeItem(OLD_LOCAL_STORAGE_KEY);
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});
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export const save = action($savedInstances, "save", (store, instance) => {
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store.set(
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new Set([getUrlDomain(instance), ...store.get()].slice(0, CAPACITY)),
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);
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});
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