31 lines
880 B
JavaScript
31 lines
880 B
JavaScript
/**
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* SigPro Storage Plugin
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* Automatically synchronizes signals with localStorage.
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*/
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export const Storage = ($) => {
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/**
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* Persists a signal's value in localStorage.
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* @param {Function} $sig - The signal to persist.
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* @param {string} key - The localStorage key name.
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* @returns {Function} The same signal for chaining.
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*/
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_storage = ($sig, key) => {
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// 1. Initial Load: If there's data in storage, update the signal immediately
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const saved = localStorage.getItem(key);
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if (saved !== null) {
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try {
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$sig(JSON.parse(saved));
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} catch (e) {
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console.error(`[SigPro Storage] Error parsing key "${key}":`, e);
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}
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}
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// 2. Auto-Save: Every time the signal changes, update localStorage
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$(() => {
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const val = $sig();
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localStorage.setItem(key, JSON.stringify(val));
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});
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return $sig;
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};
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}; |