Completed
Push — master ( ca1854...af7add )
by Karsten
02:12
created

ServiceInjectingSlumberAnnotation::validate()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 10
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 10
ccs 0
cts 7
cp 0
rs 9.4285
c 0
b 0
f 0
cc 1
eloc 5
nc 1
nop 1
crap 2
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<?php
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/**
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 * File was created 08.10.2015 17:55
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 */
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namespace PeekAndPoke\Component\Slumber\Annotation;
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use Doctrine\Common\Annotations\Annotation;
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use PeekAndPoke\Component\Psi\Psi\IsInstanceOf;
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use PeekAndPoke\Component\Slumber\Core\Exception\SlumberException;
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use PeekAndPoke\Component\Slumber\Core\Validation\ValidationContext;
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use Psr\Container\ContainerInterface;
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/**
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 * @author Karsten J. Gerber <[email protected]>
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 */
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class ServiceInjectingSlumberAnnotation extends SlumberAnnotation
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{
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    /**
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     * The ID of the request service
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     *
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     * @var string
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     *
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     * @Annotation\Required()
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     */
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    public $service;
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    /**
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     * The class that the service must be an instance of
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     *
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     * @var string
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     *
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     * @Annotation\Required()
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     */
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    public $ofClass;
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    /**
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     * @return string
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     */
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    public function getServiceDefinition()
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    {
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        return $this->service ?: $this->getServiceDefinitionDefault();
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    }
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    /**
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     * @return null
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     */
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    public function getServiceDefinitionDefault()
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    {
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        return null;
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    }
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    /**
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     * @return string
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     */
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    public function getServiceClassDefinition()
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    {
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        return $this->ofClass ?: $this->getServiceClassDefinitionDefault();
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    }
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    /**
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     * @return string
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     */
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    public function getServiceClassDefinitionDefault()
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    {
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        return null;
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    }
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    /**
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     *
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     * @param ValidationContext $context
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     *
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     * @throws SlumberException
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     */
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    public function validate(ValidationContext $context)
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    {
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        $this->validateParamAreSet($context);
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        $this->validateServiceClassExists($context);
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        $this->validateServiceIsPresentInContainer($context);
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        $this->validateServiceHasCorrectType($context);
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    }
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    /**
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     * @param ContainerInterface $provider
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     *
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     * @return mixed
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     */
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    protected function getService(ContainerInterface $provider)
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    {
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        return $provider->get(
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            $this->getServiceDefinition()
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        );
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    }
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    private function validateParamAreSet(ValidationContext $context)
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    {
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        $service = $this->getServiceDefinition();
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        $ofClass = $this->getServiceClassDefinition();
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        if (empty($service) || empty($ofClass)) {
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            throw $this->createValidationException(
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                $context,
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                "you must set the 'service' and the 'ofClass'"
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            );
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        }
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    }
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    private function validateServiceIsPresentInContainer(ValidationContext $context)
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    {
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        $service = $this->getServiceDefinition();
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        if (! $context->getProvider()->has($service)) {
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            throw $this->createValidationException(
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                $context,
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                "you requested the non-existing service '$service'"
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            );
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        }
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    }
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    private function validateServiceClassExists(ValidationContext $context)
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    {
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        $ofClass = $this->getServiceClassDefinition();
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        if (! class_exists($ofClass) && ! interface_exists($ofClass)) {
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            throw $this->createValidationException(
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                $context,
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                "you requested a service instance of the non-existing class or interface '$ofClass'"
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            );
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        }
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    }
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    private function validateServiceHasCorrectType(ValidationContext $context)
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    {
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        $service = $this->getServiceDefinition();
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        $ofClass = $this->getServiceClassDefinition();
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        $instance = $this->getService($context->getProvider());
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        $check    = new IsInstanceOf($ofClass);
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        if (! $check->__invoke($instance)) {
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            throw $this->createValidationException(
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                $context,
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                "The service '$service' is not an instance of '$ofClass' but is '" .
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                (\is_object($instance) ? \get_class($instance) : \gettype($instance)) . "'"
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            );
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        }
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    }
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}
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