plane/apps/app/hooks/use-local-storage.tsx

import { useState, useEffect, useCallback } from "react";

const getValueFromLocalStorage = (key: string, defaultValue: any) => {
  const value = window.localStorage.getItem(key);
  return value ? JSON.parse(value) : defaultValue;
};

const useLocalStorage = <T,>(key: string, initialValue: T) => {
  const [storedValue, setStoredValue] = useState<T | null>(() =>
    getValueFromLocalStorage(key, initialValue)
  );

  const setValue = useCallback(
    (value: T) => {
      window.localStorage.setItem(key, JSON.stringify(value));
      setStoredValue(value);
      window.dispatchEvent(new Event(`local-storage:${key}`));
    },
    [key]
  );

  const clearValue = useCallback(() => {
    window.localStorage.removeItem(key);
    setStoredValue(null);
    window.dispatchEvent(new Event(`local-storage:${key}`));
  }, [key]);

  const reHydrate = useCallback(() => {
    const data = getValueFromLocalStorage(key, initialValue);
    setStoredValue(data);
  }, [key, initialValue]);

  useEffect(() => {
    window.addEventListener(`local-storage:${key}`, reHydrate);
    return () => {
      window.removeEventListener(`local-storage:${key}`, reHydrate);
    };
  }, [key, reHydrate]);

  return { storedValue, setValue, clearValue } as const;
};

export default useLocalStorage;