<?
    /*
     * Template method Pattern
     *
     * Use the same algorithm and remove the duplication by creating abstract methods for everything that's unique and can change from class to class.
     * Used in laravel for authentication with multiple account providers like twitter, github or facebook.
     */


abstract class Sub{
    public function make()
    {
        return $this
            ->layBread()
            ->addLettuce()
            ->addPrimaryToppings()
            ->addSauces();
    }

    protected function layBread()
    {
        var_dump('laying down the bread');
        return $this;
    }

    protected function addLettuce()
    {
        var_dump('add some lettuce');
        return $this;
    }

    protected function addSauces()
    {
        var_dump('add oil and vinegar');
        return $this;
    }

    protected abstract function addPrimaryToppings();
}

class TurkeySub extends Sub{
    public function addPrimaryToppings()
    {
        var_dump('add some turkey');
        return $this;
    }
}

class HamSub extends Sub{
    public function addPrimaryToppings()
    {
        var_dump('add some ham');
        return $this;
    }
}

class VeggieSub extends Sub{
    public function addPrimaryToppings()
    {
        var_dump('add some veggies');
        return $this;
    }
}

//testing
    (new HamSub)->make();
    (new VeggieSub)->make();
    (new TurkeySub)->make();