elegant-lantern-8613

readme.md

elegant-lantern-8613

Created with <3 with dartpad.dev.

main.dart

import 'dart:math' show Random;

void main() {
  print('Testing');
  
  const age = 59;
  print('Age: $age. Class: ${classifyAthlet(age)}.');
  
  print('Random tests');
  
  for(var i = 0; i < 10; i++) {
    final randomAge = Random().nextInt(120);
    print('Age: $randomAge. Class: ${classifyAthlet(randomAge)}');
  }
}

AthletCategory classifyAthlet(int age) {
  if (_validateAge(age)) {
    return switch (age) {
      < 15 => Undefined(),
      >= 15 && <= 17 => Base(),
      18 || 19 => Under20(),
      >= 20 && <= 34 => Profesional(),
      <= 35 => Master(),
      _ => Undefined()
    };
  } else {
    throw ArgumentError.value(age, null, 'Invalid age!');
  }
}

bool _validateAge(int age) {
  return age > 0 || age <= 120;
}

sealed class AthletCategory {}

final class Base extends AthletCategory {
  Base();

  @override
  String toString() => 'Base';
}

final class Under20 extends AthletCategory {
  Under20();

  @override
  String toString() => 'Under20';
}

final class Profesional extends AthletCategory {
  Profesional();

  @override
  String toString() => 'Profesional';
}

final class Master extends AthletCategory {
  Master();

  @override
  String toString() => 'Master';
}

final class Undefined extends AthletCategory {
  Undefined();

  @override
  String toString() => 'Undefined';
}