import { useState, useEffect } from 'react';

/**
 * Custom hook untuk mengelola state dengan localStorage
 * @param key - Key untuk localStorage
 * @param initialValue - Nilai awal jika tidak ada data di localStorage
 * @returns [value, setValue] - Tuple berisi nilai dan fungsi setter
 */
export function useLocalStorage<T>(key: string, initialValue: T): [T, (value: T) => void] {
  // Fungsi untuk mendapatkan nilai dari localStorage
  const getStoredValue = (): T => {
    if (typeof window === 'undefined') {
      return initialValue;
    }
    
    try {
      const item = window.localStorage.getItem(key);
      return item ? JSON.parse(item) : initialValue;
    } catch (error) {
      console.warn(`Error reading localStorage key "${key}":`, error);
      return initialValue;
    }
  };

  // State dengan lazy initialization
  const [storedValue, setStoredValue] = useState<T>(getStoredValue);

  // Fungsi setter yang juga menyimpan ke localStorage
  const setValue = (value: T) => {
    try {
      setStoredValue(value);
      if (typeof window !== 'undefined') {
        window.localStorage.setItem(key, JSON.stringify(value));
      }
    } catch (error) {
      console.warn(`Error setting localStorage key "${key}":`, error);
    }
  };

  // Update state jika localStorage berubah dari tab lain
  useEffect(() => {
    if (typeof window === 'undefined') {
      return;
    }

    const handleStorageChange = (e: StorageEvent) => {
      if (e.key === key && e.newValue !== null) {
        try {
          setStoredValue(JSON.parse(e.newValue));
        } catch (error) {
          console.warn(`Error parsing localStorage value for key "${key}":`, error);
        }
      }
    };

    window.addEventListener('storage', handleStorageChange);
    return () => window.removeEventListener('storage', handleStorageChange);
  }, [key]);

  return [storedValue, setValue];
}