import type { SponsorsApiClient } from '../../api/sponsors/SponsorsApiClient';
import { SponsorViewModel, SponsorDashboardViewModel, SponsorSponsorshipsViewModel } from '../../view-models';
import type { CreateSponsorInputDTO } from '../../types/generated';

// TODO: Move these types to apps/website/lib/types/generated when available
type CreateSponsorOutputDto = { id: string; name: string };
type GetEntitySponsorshipPricingResultDto = { pricing: Array<{ entityType: string; price: number }> };
type SponsorDTO = { id: string; name: string; logoUrl?: string; websiteUrl?: string };

/**
 * Sponsor Service
 *
 * Orchestrates sponsor operations by coordinating API calls and view model creation.
 * All dependencies are injected via constructor.
 */
export class SponsorService {
  constructor(
    private readonly apiClient: SponsorsApiClient
  ) {}

  /**
   * Get all sponsors with view model transformation
   */
  async getAllSponsors(): Promise<SponsorViewModel[]> {
    const dto = await this.apiClient.getAll();
    return dto.sponsors.map((sponsor: SponsorDTO) => new SponsorViewModel(sponsor));
  }

  /**
   * Get sponsor dashboard with view model transformation
   */
  async getSponsorDashboard(sponsorId: string): Promise<SponsorDashboardViewModel | null> {
    const dto = await this.apiClient.getDashboard(sponsorId);
    if (!dto) {
      return null;
    }
    return new SponsorDashboardViewModel(dto);
  }

  /**
   * Get sponsor sponsorships with view model transformation
   */
  async getSponsorSponsorships(sponsorId: string): Promise<SponsorSponsorshipsViewModel | null> {
    const dto = await this.apiClient.getSponsorships(sponsorId);
    if (!dto) {
      return null;
    }
    return new SponsorSponsorshipsViewModel(dto);
  }

  /**
   * Create a new sponsor
   */
  async createSponsor(input: CreateSponsorInputDTO): Promise<CreateSponsorOutputDto> {
    return await this.apiClient.create(input);
  }

  /**
   * Get sponsorship pricing
   */
  async getSponsorshipPricing(): Promise<GetEntitySponsorshipPricingResultDto> {
    return await this.apiClient.getPricing();
  }
}