<?php declare(strict_types = 1);

/**

* This file is part of the Nextras\Orm library.

* @license MIT

* @link https://github.com/nextras/orm

*/

namespace Nextras\Orm\Model;

use Nette\Caching\Cache;

use Nextras\Orm\Entity\Reflection\EntityMetadata;

use Nextras\Orm\Entity\Reflection\IMetadataParserFactory;

use Nextras\Orm\Entity\Reflection\MetadataValidator;

use Nextras\Orm\InvalidArgumentException;

use Nextras\Orm\InvalidStateException;

class MetadataStorage

{

/** @var EntityMetadata[] */

private static $metadata = [];

public static function get(string $className): EntityMetadata

{

if (!isset(static::$metadata[$className])) {

if (static::$metadata === []) {

throw new InvalidStateException("MetadataStorage::get() called too early. You have to instantiate your model first.");

}

throw new InvalidArgumentException("Entity metadata for '{$className}' does not exist.");

}

return static::$metadata[$className];

}

public function __construct(

array $entityClassesMap,

Cache $cache,

IMetadataParserFactory $metadataParserFactory,

IRepositoryLoader $repositoryLoader

)

{

$metadata = $cache->derive('metadata')->load(

$entityClassesMap,

function (& $dp) use ($entityClassesMap, $metadataParserFactory, $repositoryLoader) {

$metadata = [];

$annotationParser = $metadataParserFactory->create($entityClassesMap);

foreach (array_keys($entityClassesMap) as $className) {

$metadata[$className] = $annotationParser->parseMetadata($className, $dp[Cache::FILES]);

}

$validator = new MetadataValidator();

$validator->validate($metadata, $repositoryLoader);

return $metadata;

}

);

/** @var EntityMetadata $entityMetadata */

foreach ($metadata as $entityMetadata) {

foreach ($entityMetadata->getProperties() as $property) {

if ($property->relationship) {

$property->relationship->entityMetadata = $metadata[$property->relationship->entity];

}

}

}

static::$metadata += $metadata;

}

}