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<?php |
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namespace Rexlabs\Smokescreen\Scope; |
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use Rexlabs\Smokescreen\Exception\InvalidTransformerException; |
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use Rexlabs\Smokescreen\Helpers\StrHelper; |
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use Rexlabs\Smokescreen\Relations\RelationLoaderInterface; |
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use Rexlabs\Smokescreen\Resource\Item; |
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use Rexlabs\Smokescreen\Resource\ResourceInterface; |
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use Rexlabs\Smokescreen\Serializer\SerializerInterface; |
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use Rexlabs\Smokescreen\Transformer\TransformerInterface; |
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class Compiler |
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{ |
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/** @var Scope */ |
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protected $scope; |
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/** @var SerializerInterface */ |
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protected $serializer; |
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/** @var RelationLoaderInterface|null */ |
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protected $loader; |
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public function __construct(Scope $scope, SerializerInterface $serializer, RelationLoaderInterface $loader = null) |
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{ |
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$this->scope = $scope; |
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$this->serializer = $serializer; |
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$this->loader = $loader; |
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} |
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public function compile() |
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{ |
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$output = []; |
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} |
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/** |
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* @param Scope $scope |
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* @return array |
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*/ |
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protected function serialize(Scope $scope): array |
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{ |
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// Relationship loading |
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$this->loadRelations($scope->getResource()); |
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// Build the output by recursively transforming each resource |
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return $scope->isCollection() ? |
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$this->serializeCollection($scope) : $this->serializeItem($scope); |
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} |
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protected function loadRelations(ResourceInterface $resource) |
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{ |
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if ($this->loader !== null) { |
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$this->loader->load($resource); |
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} |
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} |
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protected function serializeCollection(Scope $scope) |
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{ |
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$items = array_map(function($data) use ($scope) { |
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$scope = new Scope( |
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new Item( |
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$data, |
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$scope->getResource()->getTransformer(), |
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$scope->getResource()->getResourceKey() |
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), |
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$scope->getIncludes() |
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); |
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return $this->transformItem($item); |
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}, $scope->getResource()->toArray()); |
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// Serialize all the items |
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$output = $this->serializer->collection( |
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$collection->getResourceKey(), |
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$items |
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); |
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// Merge in any pagination |
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if ($collection->hasPaginator()) { |
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$output = array_merge($output, $this->serializer->paginator($collection->getPaginator())); |
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} |
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return $output; |
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} |
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/** |
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* @param Item $item |
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* |
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* @return array |
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*/ |
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protected function transformItem(Item $item): array |
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{ |
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$transformer = $item->getTransformer(); |
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return []; |
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} |
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protected function callTransformerIncludeMethodFor($transformer, $includeKey, $item) |
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{ |
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return $transformer->{'include' . StrHelper::studlyCase($includeKey)}($item); |
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} |
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protected function serializeItem(Scope $scope) |
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{ |
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$resource = $scope->getResource(); |
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return $this->serializer->item( |
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$resource->getResourceKey(), |
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$this->transformItem($resource->getData(), $resource->getTransformer()) |
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); |
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} |
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} |