import type { ClientRuntimeConfig, WechatLoginResult } from '@dukang/shared-types';
import { isWxAuthorizeEnabled } from '@dukang/shared-types';
import { isWechatEnv, weixinSdk } from './weixin';
import { request, saveSession, type UserProfile } from './api';

const WECHAT_AUTH_REQUIRED = 'WECHAT_AUTH_REQUIRED';

export function isWechatAuthRequiredError(err: unknown): boolean {
  return err instanceof Error && err.message === WECHAT_AUTH_REQUIRED;
}

export async function fetchClientConfig(): Promise<ClientRuntimeConfig> {
  return request<ClientRuntimeConfig>('USER_H5', '/common/client-config');
}

export async function fetchUserProfile(): Promise<UserProfile> {
  return request<UserProfile>('USER_H5', '/auth/me');
}

/** 真实微信支付且未绑定微信时需要授权 */
export function needsWechatAuthForPay(
  config: ClientRuntimeConfig,
  profile: UserProfile | null,
): boolean {
  if (!isWxAuthorizeEnabled(config)) return false;
  return !config.mockPay && config.wechatPayEnabled && isWechatEnv() && !profile?.hasWechat;
}

export function saveWechatLoginResult(result: WechatLoginResult): boolean {
  if (!result.accessToken) return false;
  saveSession({
    accessToken: result.accessToken,
    refreshToken: result.refreshToken ?? '',
    deviceKey: result.deviceKey,
    phoneVerified: !!result.phoneVerified,
    user: result.user as never,
  });
  return true;
}

export async function authorizeWechatForPay(): Promise<WechatLoginResult | void> {
  const config = await fetchClientConfig();
  if (!isWxAuthorizeEnabled(config)) return;
  if (!isWechatEnv()) {
    throw new Error('请在微信内打开以完成授权');
  }
  return weixinSdk.login();
}

export function buildLoginReturnUrl(pathname: string, search: string) {
  return `/login?return=${encodeURIComponent(`${pathname}${search}`)}`;
}