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import { browser } from '$app/environment';
import { writable, get, type Writable } from 'svelte/store';
import localforage from 'localforage';
interface StateBin {
dueAnimeListOpen?: boolean;
upcomingAnimeListOpen?: boolean;
dueMangaListOpen?: boolean;
completedAnimeListOpen?: boolean;
completedMangaListOpen?: boolean;
[key: string]: boolean | string | undefined;
}
const STORAGE_KEY = 'stateBin';
const baseStore = writable<StateBin>({});
if (browser) {
localforage.getItem<StateBin>(STORAGE_KEY).then((value) => {
if (value && typeof value === 'object') baseStore.set(value);
});
baseStore.subscribe((value) => {
localforage.setItem(STORAGE_KEY, value);
});
}
const createProxyStore = (store: Writable<StateBin>) => {
return new Proxy(store, {
get(target, prop: string) {
if (prop in target) return (target as unknown as Record<string, unknown>)[prop];
const derivedKey = writable(get(store)[prop]);
derivedKey.subscribe((value) => {
const state = get(store);
const updatedState = { ...state };
if (value === null || value === undefined) delete updatedState[prop];
else updatedState[prop] = value;
store.set(updatedState);
});
return derivedKey;
},
set(_, prop: string, value) {
const state = get(store);
const updatedState = { ...state };
if (value === null || value === undefined) delete updatedState[prop];
else updatedState[prop] = value;
store.set(updatedState);
return true;
}
});
};
const stateBin = createProxyStore(baseStore);
export default stateBin;
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