facade.php

<?php

class PaymentsFacade extends Container
{
	private $requiredKeys = [
		'factory.project',
		'price-calculator',
		'repository.plan',
		'repository.coupon',
		'service.authorize-card',
		'service.buy-project',
		'service.renew-project',
		'service.upgrade-project',
	];

	public function __construct(array $values = [])
	{
		$diff = array_diff_key(array_combine($this->requiredKeys, $this->requiredKeys), $values);
		if (0 !== sizeof($diff))
		{
			throw new \InvalidArgumentException('Required keys are missing: ' . implode(', ', $diff));
		}

		parent::__construct($values + [
			'country-code' => new PolandCountryProvider,
			'notification.email' => new NullEmailNotification,
		]);
	}


	public function setEmailNotification(EmailNotificationInterface $emailNotification)
	{
		$this->offsetSet('notification.email', $emailNotification);
	}

	public function setCountryCodeProvider(CountryCodeProviderInterface $countryCodeProvider)
	{
		$this->offsetSet('country-code', $countryCodeProvider);
	}

	/**
	 * @return \Metricso\Payments\PaymentPlanInterface[]
	 */
	public function getAvailablePlans()
	{
		/** @var PaymentPlanRepositoryInterface $service */
		$service = $this->offsetGet('repository.plan');

		return $service->all();
	}

	public function createProject($name, PaymentPlanInterface $plan, $yearly = false, CouponInterface $coupon = null)
	{
		/** @var ProjectFactory $factory */
		$factory = $this->offsetGet('factory.project');

		return $factory->createProject($name, $plan, $yearly, $coupon);
	}

	public function findValidCoupon($code)
	{
		/** @var CouponRepository $service */
		$service = $this->offsetGet('repository.coupon');

		return $service->get($code);
	}

	public function getPlanPrice(PaymentPlanInterface $plan, $yearly = false)
	{
		/** @var ProductPriceCalculator $service */
		$service = $this->offsetGet('price-calculator');

		return $service->getPriceGivenDuration($plan, $yearly ? $plan::DURATION_YEAR : $plan::DURATION_MONTH);
	}

	/**
	 * @param UserInterface $user
	 * @param NewCustomerDetailsInterface $customer
	 *
	 * @return bool
	 */
	public function authorizeCard(UserInterface $user, NewCustomerDetailsInterface $customer)
	{
		/** @var AuthorizeCardService $service */
		$service = $this->offsetGet('service.authorize-card');

		return $service->authorizeCard($user, $customer);
	}

	/**
	 * @param ProjectInterface $project
	 * @param PaymentPlanInterface $plan
	 * @param NewCustomerDetailsInterface $customer
	 */
	public function buyProject(ProjectInterface $project, PaymentPlanInterface $plan, NewCustomerDetailsInterface $customer = null)
	{
		/** @var BuyProjectService $service */
		$service = $this->offsetGet('service.buy-project');

		$service->buyProject($project, $plan, $customer);
	}

	/**
	 * @param ProjectInterface $project
	 */
	public function renewProject(ProjectInterface $project)
	{
		/** @var RenewProjectService $service */
		$service = $this->offsetGet('service.renew-project');

		$service->renewProject($project);
	}

	/**
	 * @param ProjectInterface $project
	 * @param PaymentPlanInterface $plan
	 * @param NewCustomerDetailsInterface $customer
	 */
	public function upgradeProject(ProjectInterface $project, PaymentPlanInterface $plan, NewCustomerDetailsInterface $customer = null)
	{
		/** @var UpgradeProjectService $service */
		$service = $this->offsetGet('service.upgrade-project');

		$service->upgradePlan($project, $plan, $customer);
	}
}