import type { GameConfig, Location, ShipModel } from "./schemas";

/**
 * The deal's loan (decision 0.5.83): the price of every ship it hands over plus
 * the lease of its bay, read from content so it follows any price change.
 */
export function dealLoanAmount(data: {
  config: Pick<GameConfig, "deal">;
  shipModels: readonly ShipModel[];
  locations: readonly Location[];
}): number {
  const { avatarShipModelId, veteranShipModelId, bayLocationId } = data.config.deal;
  const price = (id: string) => {
    const model = data.shipModels.find((m) => m.id === id);
    if (!model) throw new Error(`Unknown deal ship model ${id}`);
    return model.price;
  };
  const bay = data.locations.find((l) => l.id === bayLocationId);
  if (!bay) throw new Error(`Unknown deal bay location ${bayLocationId}`);
  return price(avatarShipModelId) + price(veteranShipModelId) + bay.bayLeasePrice;
}