import { isIosDevice } from '@dukang/weixin-sdk';

/** 扫码前发起 OAuth 时标记，回跳后在首页续扫 */
export const SHOP_PENDING_SCAN_KEY = 'shop_pending_scan';

export function markPendingScanAfterAuth(): void {
  try {
    sessionStorage.setItem(SHOP_PENDING_SCAN_KEY, '1');
  } catch {
    /* ignore */
  }
}

export function peekPendingScanAfterAuth(): boolean {
  try {
    return sessionStorage.getItem(SHOP_PENDING_SCAN_KEY) === '1';
  } catch {
    return false;
  }
}

export function clearPendingScanAfterAuth(): void {
  try {
    sessionStorage.removeItem(SHOP_PENDING_SCAN_KEY);
  } catch {
    /* ignore */
  }
}

/** OAuth 回跳后延迟再调 scanQRCode（iOS JSSDK 离线校验更慢） */
export function getPostAuthScanDelayMs(): number {
  return isIosDevice() ? 1200 : 600;
}