//  1.  Create an interface for the object (Car).
interface Car {
  name: string;
  seats?: number;
  engine?: string;
  gps?: boolean;
  tripComputer?: boolean;
}

// 2. Create an interface for the builder (CarBuilderStructure).
interface CarBuilderStructure {
  showInfo: () => void;
  setSeats: (seats: number) => void;
  setEngine: (engine: string) => void;
  setGPS: (hasGps: boolean) => void;
  setTripComputer: (hasTripComputer: boolean) => void;
  reset: () => void;
}

// 3.  Create a class implementing the Builder interface (CarBuilder).
class CarBuilder implements CarBuilderStructure {
  private car: Car;
  constructor(name: string) {
    this.car = { name };
  }
  setSeats(seats: number) {
    this.car.seats = seats;
    return this;
  }
  setEngine(engine: string) {
    this.car.engine = engine;
    return this;
  }
  setGPS(hasGps: boolean) {
    this.car.gps = hasGps;
    return this;
  }
  setTripComputer(hasTripComputer: boolean) {
    this.car.tripComputer = hasTripComputer;
    return this;
  }
  showInfo() {
    return console.log(
      `${this.car.name} - seats: ${this.car.seats}, engine: ${this.car.engine}, gps: ${this.car.gps}, tripComputer: ${this.car.tripComputer}`
    );
  }
  reset() {
    this.car = { name: this.car.name };
  }
}

// 4. Create factories for each type of Car (Jeep, Sedan, etc.).
class JeepCarFactory {
  constructor() {
    const car = new CarBuilder("Jeep")
      .setSeats(4)
      .setGPS(true)
      .setTripComputer(true);
    car.showInfo();
    return car;
  }
}

class SedanCarFactory {
  constructor() {
    const car = new CarBuilder("Sedan")
      .setSeats(4)
      .setGPS(false)
      .setTripComputer(true);

    car.showInfo();
    return car;
  }
}

const sedan = new SedanCarFactory();
const jeep = new JeepCarFactory();