react-unprop/dist/index.mjs

A lightweight React signal system for sharing reactive state across components — no prop drilling, no context, no global state libraries. Just pure reactivity with persistent storage.

// src/index.ts
import { useSyncExternalStore } from "react";
import CryptoJS from "crypto-js";
var subscribers = /* @__PURE__ */ new Map();
var DEFAULT_SECRET = "__signal_package_secret__";
var isBrowser = typeof window !== "undefined";
var encrypt = (data, secret) => CryptoJS.AES.encrypt(JSON.stringify(data), secret).toString();
var decrypt = (cipher, secret) => JSON.parse(CryptoJS.AES.decrypt(cipher, secret).toString(CryptoJS.enc.Utf8));
function createSignal(initialValue, options = {}) {
  let value = initialValue;
  const key = Symbol("signal");
  subscribers.set(key, /* @__PURE__ */ new Set());
  const { persistKey, encrypted = false, secret = DEFAULT_SECRET } = options;
  const load = (raw) => {
    if (!raw) return;
    try {
      value = encrypted ? decrypt(raw, secret) : JSON.parse(raw);
    } catch (e) {
      console.warn("[createSignal] Failed to parse persisted value:", e);
    }
  };
  if (isBrowser && persistKey) {
    try {
      load(localStorage.getItem(persistKey));
      window.addEventListener("storage", (e) => {
        if (e.key === persistKey && e.newValue !== e.oldValue) {
          load(e.newValue);
          subscribers.get(key)?.forEach((cb) => cb());
        }
      });
    } catch (e) {
      console.warn("[createSignal] Browser storage unavailable:", e);
    }
  }
  const get = () => value;
  const set = (next) => {
    const newValue = typeof next === "function" ? next(value) : next;
    if (newValue !== value) {
      value = newValue;
      if (isBrowser && persistKey) {
        try {
          const toStore = encrypted ? encrypt(value, secret) : JSON.stringify(value);
          localStorage.setItem(persistKey, toStore);
        } catch (e) {
          console.warn("[createSignal] Persist failed:", e);
        }
      }
      subscribers.get(key)?.forEach((cb) => cb());
    }
  };
  const subscribe = (cb) => {
    subscribers.get(key)?.add(cb);
    return () => subscribers.get(key)?.delete(cb);
  };
  return { get, set, subscribe };
}
function useSignal(signal) {
  return useSyncExternalStore(
    signal.subscribe,
    signal.get,
    // Server snapshot - same as client snapshot for consistent hydration
    signal.get
  );
}
export {
  createSignal,
  useSignal
};