The Builder patron, a pizza

pizza.ts

export enum PizzaShapes {
  square,
  rectangular,
  circular,
}

export type PizzaToppings = "sausage" | "mushrooms" | "cabanossi";
export type PizzaFlavor =
  | "veggie"
  | "meat"
  | "pepperoni"
  | "margherita"
  | "cheese";

export interface PizzaProperties {
  flavor?: PizzaFlavor;
  toppings?: PizzaToppings[];
  shape?: PizzaShapes;
}

// deno-lint-ignore no-empty-interface
interface Pizza extends PizzaProperties {}

class Pizza {
  constructor({ flavor, shape, toppings }: PizzaProperties = {}) {
    this.flavor = flavor;
    this.shape = shape;
    this.toppings = toppings;
  }

  setFlavor(flavor: PizzaFlavor) {
    this.flavor = flavor;
    return this;
  }

  setShape(shape: PizzaShapes) {
    this.shape = shape;
    return this;
  }

  setToppings(toppings: PizzaToppings[]) {
    this.toppings = toppings;
    return this;
  }
}

export default Pizza;