import type { WechatLoginResult } from '@dukang/shared-types';
import { isWechatEnv, weixinSdk } from './weixin';
import { request, saveAuth, type ShopSessionPayload } from './api';

export type ShopAccountProfile = {
  id: string;
  storeId: string;
  name: string;
  phone: string;
  wxOpenId?: string | null;
  store?: { name: string };
};

export async function fetchShopAccount(): Promise<ShopAccountProfile> {
  return request<ShopAccountProfile>('SHOP_H5', '/shop/auth/me');
}

export function needsWechatAuth(profile: ShopAccountProfile | null): boolean {
  return isWechatEnv() && !!profile && !profile.wxOpenId;
}

export function sessionFromWechatLogin(result: WechatLoginResult): ShopSessionPayload | null {
  if (!result.accessToken || !result.refreshToken) return null;
  const store = result.store;
  return {
    accessToken: result.accessToken,
    refreshToken: result.refreshToken,
    store: store
      ? {
          id: String(store.id ?? ''),
          storeId: String(store.storeId ?? ''),
          name: String(store.name ?? ''),
          phone: String(store.phone ?? ''),
          storeName: String(store.storeName ?? store.name ?? ''),
        }
      : undefined,
  };
}

export function saveShopWechatAuth(result: WechatLoginResult): boolean {
  const session = sessionFromWechatLogin(result);
  if (!session) return false;
  saveAuth(session);
  return true;
}

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

export async function handleShopWechatCallback(): Promise<WechatLoginResult | null> {
  if (!isWechatEnv()) return null;
  return weixinSdk.handleOAuthCallback();
}