import { browser } from 'wxt/browser';

const SESSION_TOKEN_STORAGE_KEY = 'nexa:sessionToken';

/**
 * Session token storage. The token itself is obtained by wallet-auth.ts
 * (nonce -> Phantom signature -> verify) once a wallet connects — this
 * module just persists/retrieves it, since ws-client.ts and popup code
 * shouldn't know how a token was obtained.
 */
export async function getSessionToken(): Promise<string> {
  const stored = await browser.storage.local.get(SESSION_TOKEN_STORAGE_KEY);
  const token = stored[SESSION_TOKEN_STORAGE_KEY] as string | undefined;
  if (!token) throw new Error('Not authenticated yet — connect a wallet on a supported trading site.');
  return token;
}

export async function storeSessionToken(token: string): Promise<void> {
  await browser.storage.local.set({ [SESSION_TOKEN_STORAGE_KEY]: token });
}

export async function clearSessionToken(): Promise<void> {
  await browser.storage.local.remove(SESSION_TOKEN_STORAGE_KEY);
}