Codemaster day2

README.md

Esempio

Car.php

<?php

namespace Codemaster\Example\Day2;

use Codemaster\Example\Day2\EngineInterface;

class Car
{
    private $engine;
    private $wheels;

    public function __construct(EngineInterface $engine, WheelsArray $wheels)
    {
        $this->engine = $engine;
        $this->wheels = $wheels;
    }

    public function __toString()
    {
        return sprintf("Car con %s e %s", $this->engine, $this->wheels);
    }
}

Engine.php

<?php

namespace Codemaster\Example\Day2;

use InvalidArgumentException;

abstract class Engine
{
    private $power;

    public function __construct($power)
    {
        if (is_int($power) && $power > 0) {
            $this->power = $power;
        } else {
            throw new InvalidArgumentException();
        }
    }

    public function __toString()
    {
        return sprintf("Motore con %dcv", $this->power);
    }
}

EngineCombustione.php

<?php

namespace Codemaster\Example\Day2;

use Codemaster\Example\Day2\Engine;
use InvalidArgumentException;

class EngineCombustione extends Engine implements EngineInterface
{
    private $fuel;

    const GPL     = 'GPL';
    const DIESEL  = 'DIESEL';
    const BENZINA = 'BENZINA';

    public function __construct($fuel, $power)
    {
        parent::__construct($power);

        if ($fuel === EngineCombustione::GPL ||
            $fuel === EngineCombustione::BENZINA ||
            $fuel === EngineCombustione::DIESEL) {
            $this->fuel = $fuel;
        } else {
            throw new InvalidArgumentException();
        }
    }
}

EngineElettrico.php

<?php

namespace Codemaster\Example\Day2;

use Codemaster\Example\Day2\Engine;

class EngineElettrico extends Engine implements EngineInterface
{
    private $fuel;

    const ELETTRICITA = 'ELETTRICITA';

    public function __construct($fuel, $power)
    {
        parent::__construct($power);

        if ($fuel === EngineElettrico::ELETTRICITA) {
            $this->fuel = $fuel;
        } else {
            throw new InvalidArgumentException();
        }
    }
}

EngineInterface.php

<?php

namespace Codemaster\Example\Day2;

interface EngineInterface
{

}

index.php

<?php

include "Wheel.php";
include "WheelsArray.php";
include "Car.php";
include "Engine.php";
include "EngineInterface.php";
include "EngineCombustione.php";
include "EngineElettrico.php";

use Codemaster\Example\Day2\Wheel;
use Codemaster\Example\Day2\WheelsArray;
use Codemaster\Example\Day2\Car;
use Codemaster\Example\Day2\EngineCombustione;
use Codemaster\Example\Day2\EngineElettrico;

// Creo l'automobile
$wheels = new WheelsArray();
for ($i = 0; $i < 4; $i++) {
    $wheels->addWheel(new Wheel(Wheel::NEVE, 18));
}
// $wheels->addWheel(new Wheel(Wheel::NEVE, 18));
// $wheels->addWheel(new Wheel(Wheel::NEVE, 18));
// $wheels->addWheel(new Wheel(Wheel::NEVE, 18));

$eng1 = new EngineCombustione(EngineCombustione::GPL, 70);
$automobile = new Car($eng1, $wheels);

print $automobile;
print '<br />';

// Creo l'automobile elettrica
$engElettrico = new EngineElettrico(EngineElettrico::ELETTRICITA, 70);
$automobileElettrica = new Car($engElettrico, $wheels);

print $automobileElettrica;
print '<br />';


// Creo il camion
$wheels = new WheelsArray();
for ($i = 0; $i < 6; $i++) {
    $wheels->addWheel(new Wheel(Wheel::NORMALE, 38));
}

$eng2 = new EngineCombustione(EngineCombustione::DIESEL, 350);
$camion = new Car($eng2, $wheels);

print $camion;
print '<br />';

Wheel.php

<?php

namespace Codemaster\Example\Day2;

use InvalidArgumentException;

class Wheel
{
    private $type;
    private $size;

    const NEVE     = 'NEVE';
    const NORMALE  = 'NORMALE';

    public function __construct($type, $size)
    {
        if ($type === Wheel::NEVE || $type === Wheel::NORMALE) {
            $this->type = $type;
        } else {
            // Errore
            throw new InvalidArgumentException();
        }

        if (is_int($size) && $size > 0) {
            $this->size = $size;
        } else {
            // Errore
            throw new InvalidArgumentException();
        }
    }

    public function __toString()
    {
        return sprintf('Ruota %s da %d"', $this->type, $this->size);
    }
}

WheelsArray.php

<?php

namespace Codemaster\Example\Day2;

use Codemaster\Example\Day2\Wheel;

class WheelsArray
{
    private $wheels = [];

    public function addWheel(Wheel $wheel)
    {
        $this->wheels[] = $wheel;
    }

    public function __toString()
    {
        return sprintf("%d %s", count($this->wheels), reset($this->wheels));

        // $data = '';
        // foreach ($this->wheels as $wheel) {
        //     $data .= $wheel;
        // }
        // return $data;
    }
}