03. Parking

//JUDGE - 88/100
class Parking {
  constructor(capacity) {
    this.capacity = capacity;
    this.vehicles = [];
  }
  addCar(carModel, carNumber) {
    if (this.vehicles.length >= this.capacity) {
      throw new Error("Not enough parking space.");
    }

    let newCar = { carModel, carNumber, payed: false };
    this.vehicles.push(newCar);
    return `The ${carModel}, with a registration number ${carNumber}, parked.`;
  }
  removeCar(carNumber) {
    let foundCar = this.vehicles.find((i) => i.carNumber == carNumber);

    if (foundCar) {
      if (foundCar.payed) {
        let foundCarIndex = this.vehicles.findIndex(
          (i) => i.carNumber == carNumber
        );
        this.vehicles.splice(foundCarIndex, 1);
        return `${carNumber} left the parking lot.`;
      } else {
        return `${carNumber} needs to pay before leaving the parking lot.`;
      }
    } else {
      throw new Error("The car, you're looking for, is not found.");
    }
  }
  pay(carNumber) {
    let foundCar = this.vehicles.find((i) => i.carNumber == carNumber);

    if (foundCar) {
      if (foundCar.payed) {
        throw new Error(`${carNumber}\'s driver has already payed his ticket.`);
      } else {
        foundCar.payed = true;
        return `${carNumber}\'s driver successfully payed for his stay.`;
      }
    } else {
      throw new Error(`${carNumber} is not in the parking lot.`);
    }
  }
  getStatistics(carNumber) {
    if (carNumber) {
      let foundCar = this.vehicles.find((i) => i.carNumber == carNumber);
      if (foundCar.payed) {
        return `${foundCar.carModel} == ${foundCar.carNumber} - Has payed`;
      } else {
        return `${foundCar.carModel} == ${foundCar.carNumber} - Not payed`;
      }
    } else {
      let sorted = this.vehicles.sort((a, b) =>
        a.carModel.localeCompare(b.carModel)
      );
      let emptySlots = this.capacity - this.vehicles.length;
      let message = `The Parking Lot has ${emptySlots} empty spots left.`;
      sorted.forEach((car) => {
        if (car.payed) {
          message += "\n" + `${car.carModel} == ${car.carNumber} - Has payed`;
        } else {
          message += "\n" + `${car.carModel} == ${car.carNumber} - Not payed`;
        }
      });
      return message;
    }
  }
}