import Contents from "./contents";

interface LayoutSettings {
  layout: string;
  spread: string;
  minSpreadWidth: number;
  evenSpreads: boolean;
}

export default class Layout {
  constructor(settings: LayoutSettings);

  settings: LayoutSettings;
  name: string;
  props: {
    name: string;
    spread: string;
    flow: string;
    width: number;
    height: number;
    spreadWidth: number;
    delta: number;
    columnWidth: number;
    gap: number;
    divisor: number;
  };

  flow(flow: string): string;
  spread(spread: string, min: number): boolean;
  calculate(_width: number, _height: number, _gap?: number): void;
  format(contents: Contents): void | Promise<void>;
  count(
    totalLength: number,
    pageLength: number
  ): { spreads: Number; pages: Number };
  // Event emitters
  emit(type: any, ...args: any[]): void;
  off(type: any, listener: any): any;
  on(type: any, listener: any): any;
  once(type: any, listener: any, ...args: any[]): any;

  private update(props: object): void;
}