identity/implementations/AsyncStorageAdapter.ts

/**
 * AsyncStorage adapter for React Native
 */

import type { IIdentityStorage } from '../interfaces/IIdentity';

// AsyncStorage type definition for dependency injection
interface IAsyncStorage {
  setItem(key: string, value: string): Promise<void>;
  getItem(key: string): Promise<string | null>;
  removeItem(key: string): Promise<void>;
  getAllKeys(): Promise<string[]>;
  multiRemove(keys: string[]): Promise<void>;
}

export class AsyncStorageAdapter implements IIdentityStorage {
  private asyncStorage: IAsyncStorage;

  constructor(asyncStorage: IAsyncStorage) {
    this.asyncStorage = asyncStorage;
  }

  async setItem(key: string, value: string): Promise<void> {
    await this.asyncStorage.setItem(key, value);
  }

  async getItem(key: string): Promise<string | null> {
    return await this.asyncStorage.getItem(key);
  }

  async removeItem(key: string): Promise<void> {
    await this.asyncStorage.removeItem(key);
  }

  async clear(): Promise<void> {
    // Only clear identity-related keys
    const keys = await this.asyncStorage.getAllKeys();
    const identityKeys = keys.filter((key) => key.startsWith('@IdentityManager'));
    if (identityKeys.length > 0) {
      await this.asyncStorage.multiRemove(identityKeys);
    }
  }
}