import { Injectable } from '@nestjs/common';
import { loadAppConfig } from '@dukang/shared-types';
import type { IPayProvider, PayOrderResult } from './pay.interface';
import { PayMockProvider } from './pay.mock.provider';
import { PayWechatProvider } from './pay.wechat.provider';

/** 按当前 process.env 动态选择 Mock / 微信 JSAPI 支付 */
@Injectable()
export class PayRouterProvider implements IPayProvider {
  constructor(
    private readonly mock: PayMockProvider,
    private readonly wechat: PayWechatProvider,
  ) {}

  private resolve(): IPayProvider {
    return loadAppConfig().mockPay ? this.mock : this.wechat;
  }

  payOrder(orderId: bigint, openId?: string, platform?: 'h5' | 'mini'): Promise<PayOrderResult> {
    return this.resolve().payOrder(orderId, openId, platform);
  }
}