/**
 * Storage utilities
 *
 * Helper functions for reading, writing, and clearing storage.
 */

import type { StorageEntry } from '../types';

/**
 * Get all entries from localStorage
 */
export function getLocalStorageEntries(): StorageEntry[] {
  if (typeof window === 'undefined') {
    return [];
  }

  const entries: StorageEntry[] = [];

  try {
    for (let i = 0; i < localStorage.length; i++) {
      const key = localStorage.key(i);
      if (key !== null) {
        const value = localStorage.getItem(key);
        if (value !== null) {
          entries.push({
            key,
            value,
            type: 'localStorage',
          });
        }
      }
    }
  } catch (error) {
    console.error('[StorageUtils] Failed to read localStorage:', error);
  }

  return entries;
}

/**
 * Get all entries from sessionStorage
 */
export function getSessionStorageEntries(): StorageEntry[] {
  if (typeof window === 'undefined') {
    return [];
  }

  const entries: StorageEntry[] = [];

  try {
    for (let i = 0; i < sessionStorage.length; i++) {
      const key = sessionStorage.key(i);
      if (key !== null) {
        const value = sessionStorage.getItem(key);
        if (value !== null) {
          entries.push({
            key,
            value,
            type: 'sessionStorage',
          });
        }
      }
    }
  } catch (error) {
    console.error('[StorageUtils] Failed to read sessionStorage:', error);
  }

  return entries;
}

/**
 * Clear a specific key or all keys from storage
 */
export function clearStorage(
  type: 'localStorage' | 'sessionStorage',
  key?: string,
): void {
  if (typeof window === 'undefined') {
    return;
  }

  const storage = type === 'localStorage' ? localStorage : sessionStorage;

  try {
    if (key) {
      storage.removeItem(key);
      console.log(`[StorageUtils] Cleared ${type} key: ${key}`);
    } else {
      storage.clear();
      console.log(`[StorageUtils] Cleared all ${type}`);
    }
  } catch (error) {
    console.error(`[StorageUtils] Failed to clear ${type}:`, error);
  }
}

/**
 * Clear all cookies
 */
export function clearCookies(): void {
  if (typeof window === 'undefined' || typeof document === 'undefined') {
    return;
  }

  try {
    const cookies = document.cookie.split(';');

    for (const cookie of cookies) {
      const eqPos = cookie.indexOf('=');
      const name = eqPos > -1 ? cookie.substring(0, eqPos).trim() : cookie.trim();

      // Clear for all paths and domains
      document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/`;
      document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;domain=${window.location.hostname}`;

      // Try with leading dot
      const domainParts = window.location.hostname.split('.');
      if (domainParts.length > 1) {
        const baseDomain = domainParts.slice(-2).join('.');
        document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;domain=.${baseDomain}`;
      }
    }

    console.log('[StorageUtils] Cleared all cookies');
  } catch (error) {
    console.error('[StorageUtils] Failed to clear cookies:', error);
  }
}