48308

class Tariff
{
    protected $total = 0;
    protected $yearlyStaticExpenses = 0;
    protected $name = '';
    protected $consumptionCosts = 0;

    abstract protected function setYearlyStaticExpenses($yearlyStaticExpenses = null);

    abstract protected function calculate();

    protected function getYearlyStaticExpenses()
    {
        return $this->yearlyStaticExpenses;
    }

    protected function setPrice($price)
    {
        $this->price = $price;
        return $this;
    }

    protected function getPrice()
    {
        return $this->price;
    }

    protected function setName($name)
    {
        $this->name = $name;
        return $this;
    }

    protected function getName()
    {
        return $this->name;
    }

    protected function setConsumptionCosts($consumptionCosts)
    {
        $this->consumptionCosts = $consumptionCosts;
        return $this;
    }

    protected function getConsumptionCosts()
    {
        return $this->consumptionCosts;
    }

    protected function centsToEur(int $cents)
    {
        return sprintf("%2f", round($cents / 100), 2);
    }
}

class BasicElectricityTariff extends Tariff
{
    private $baseCostPerMonth = 500;
    protected $name = "Basic Electricity Tariff";
    protected $consumptionCosts = 22;

    public function __construct(array $input)
    {
        $this->input = $input;
        $this->setYearlyStaticExpenses($this->baseCostPerMonth);
    }

    protected function setYearlyStaticExpenses($baseCostPerMonth)
    {
        $yearlyStaticExpenses = $baseCostPerMonth * 12;
        $this->yearlyStaticExpenses = $yearlyStaticExpenses;
        return $this;
    }

    protected function calculate()
    {
        $spending = $this->input['kWhy'] * $this->getConsumptionCosts();
        $total = $this->getYearlyStaticExpenses() + $spending;
        return $total;
    }
}

class PackagedTariff extends Tariff
{
    private $paidLimit = 4000;
    protected $yearlyStaticExpanses = 80000;
    protected $name = "Packaged Tariff";
    protected $consumptionCosts = 30;

    public function __construct(array $input)
    {
        $this->setYearlyStaticExpenses($this->yearlyStaticExpanses);
    }

    protected setYearlyStaticExpenses($yearlyStaticExpanses)
    {
        $this->yearlyStaticExpanses = $yearlyStaticExpanses;
        return $this;
    }
}