import { EarnLayerClient } from './EarnLayerClient';
import { DisplayAd } from './types';

export interface FetchAdParams {
  conversationId?: string;
  adType?: 'banner' | 'popup' | 'video' | 'thinking';
  placement?: string;
  thinkingAdTimeout?: number;
}

export class DisplayAdFetcher {
  private client: EarnLayerClient;

  constructor(client: EarnLayerClient) {
    this.client = client;
  }

  async fetchAd(params: FetchAdParams): Promise<DisplayAd | null> {
    if (!params.conversationId) {
      throw new Error('conversationId is required to fetch display ads');
    }

    return this.client.getDisplayAd(params.conversationId, params.adType, params.thinkingAdTimeout);
  }
}