import { ViewModel } from "../contracts/view-models/ViewModel";
import { CurrencyFormatter } from "../formatters/CurrencyFormatter";
import type { SponsorshipPricingViewData } from "../view-data/SponsorshipPricingViewData";

export class SponsorshipPricingViewModel extends ViewModel {
  mainSlotPrice: number;
  secondarySlotPrice: number;
  currency: string;

  constructor(data: SponsorshipPricingViewData) {
    super();
    this.mainSlotPrice = data.mainSlotPrice;
    this.secondarySlotPrice = data.secondarySlotPrice;
    this.currency = data.currency;
  }

  /** UI-specific: Formatted main slot price */
  get formattedMainSlotPrice(): string {
    return CurrencyFormatter.format(this.mainSlotPrice, this.currency);
  }

  /** UI-specific: Formatted secondary slot price */
  get formattedSecondarySlotPrice(): string {
    return CurrencyFormatter.format(this.secondarySlotPrice, this.currency);
  }

  /** UI-specific: Price difference */
  get priceDifference(): number {
    return this.mainSlotPrice - this.secondarySlotPrice;
  }

  /** UI-specific: Formatted price difference */
  get formattedPriceDifference(): string {
    return CurrencyFormatter.format(this.priceDifference, this.currency);
  }

  /** UI-specific: Discount percentage for secondary slot */
  get secondaryDiscountPercentage(): number {
    if (this.mainSlotPrice === 0) return 0;
    return Math.round((1 - this.secondarySlotPrice / this.mainSlotPrice) * 100);
  }
}