import { ViewModel } from "../contracts/view-models/ViewModel";
import type { SponsorSponsorshipsViewData } from "../view-data/SponsorSponsorshipsViewData";
import { SponsorshipDetailViewModel } from './SponsorshipDetailViewModel';

export class SponsorSponsorshipsViewModel extends ViewModel {
  sponsorId: string;
  sponsorName: string;
  sponsorships: SponsorshipDetailViewModel[];

  constructor(data: SponsorSponsorshipsViewData) {
    super();
    this.sponsorId = data.sponsorId;
    this.sponsorName = data.sponsorName;
    this.sponsorships = (data.sponsorships || []).map(s => new SponsorshipDetailViewModel(s));
  }

  /** UI-specific: Total sponsorships count */
  get totalCount(): number {
    return this.sponsorships.length;
  }

  /** UI-specific: Active sponsorships */
  get activeSponsorships(): SponsorshipDetailViewModel[] {
    return this.sponsorships.filter(s => s.status === 'active');
  }

  /** UI-specific: Active count */
  get activeCount(): number {
    return this.activeSponsorships.length;
  }

  /** UI-specific: Has sponsorships */
  get hasSponsorships(): boolean {
    return this.sponsorships.length > 0;
  }

  /** UI-specific: Total investment */
  get totalInvestment(): number {
    return this.sponsorships.reduce((sum, s) => sum + s.amount, 0);
  }

  /** UI-specific: Formatted total investment */
  get formattedTotalInvestment(): string {
    const firstCurrency = this.sponsorships[0]?.currency || 'USD';
    return `${firstCurrency} ${this.totalInvestment.toLocaleString()}`;
  }
}