// Abstract base class
export abstract class PriceSourceBase<TProductCategory extends object> {
  protected sourceName: string; // The name of the price source.
  protected apiUrl?: string; // Optional URL for the API from which prices can be fetched.
  protected productCategory: TProductCategory; // The category of the product associated with this price source.

  constructor(
    sourceName: string,
    productCategory: TProductCategory,
    apiUrl?: string,
  ) {
    this.sourceName = sourceName; // Initialize source name.
    this.productCategory = productCategory; // Initialize product category.
    this.apiUrl = apiUrl; // Initialize optional API URL.
  }

  /**
   * Fetches the price for a specified product category.
   * @param productCategory - The category of the product for which the price is to be fetched.
   * @returns The price as a Promise.
   */
  abstract fetchPrice(productCategory: TProductCategory): Promise<number>;

  /**
   * Checks if the price source is active.
   * @returns A boolean indicating the active status of the price source.
   */
  abstract isActive(): Promise<boolean>;
}