class School {
  constructor(name, level, numberOfStudents) {
    this._name = name;
    this._level = level;
    this._numberOfStudents = 0;
  }
  get name() {
    return this._name;
  }
  get level() {
    return this._level;
  }
  get numberOfStudents() {
    return this._numberOfStudents;
  }
  quickFacts() {
    console.log(`${this._name} educates ${this._numberOfStudents} at the ${this._level} school level.`)
  }
  static pickSubstituteTeacher(substituteTeachers) {
    const teacherNumber = Math.floor(Math.random() * substituteTeachers.length);
    return substituteTeachers[teacherNumber];
  }
  set numberOfStudents(newStudent) {
    if (typeof newStudent === 'Number') {
      this._numberOfStudents = newStudent;
    } else {
      	console.log(`Invalid input: ${this._numberOfStudents} must be set to a Number`);
    }
  }
}
class PrimarySchool extends School {
  constructor(name, numberOfStudents, pickupPolicy) {
    super(name, 'primary', numberOfStudents);
    this._pickupPolicy = pickupPolicy;
  }
  get pickupPolicy() {
    return this._pickupPolicy;
  }
}
class HighSchool extends School {
  constructor(name, numberOfStudents, sportsTeams) {
    super(name, 'high', numberOfStudents);
    this._sportsTeams = sportsTeams;
  }
  get sportsTeams() {
    console.log(this._sportsTeams);
  }
}
const lorraineHansbury = new PrimarySchool('Lorraine Hansbury', 514, 'Students must be picked up by a parent, guardian, or a family member over the age of 13');
lorraineHansbury.quickFacts();
School.pickSubstituteTeacher(['Jamal Crawford', 'Lou Williams', 'J.R. Smith', 'James Harden', 'Jason Terry', 'Manu Ginobli']);
console.log(School.substituteTeachers);
const alSmith = new HighSchool('Al E. Smith', 415, ['Baseball', 'Basketball', 'Volleyball', 'Track and Field']);
alSmith.sportsTeams;