<?php

namespace League\CommonMark\Reference;

use League\CommonMark\Normalizer\TextNormalizer;

/**
 * A collection of references, indexed by label
 */
final class ReferenceMap implements ReferenceMapInterface
{
    /** @psalm-readonly */
    private TextNormalizer $normalizer;

    /**
     * @var array<string, ReferenceInterface>
     *
     * @psalm-readonly-allow-private-mutation
     */
    private array $references = [];

    public function __construct()
    {
        $this->normalizer = new TextNormalizer();
    }

    public function add(ReferenceInterface $reference): void
    {
        // Normalize the key
        $key = $this->normalizer->normalize($reference->getLabel());
        // Store the reference
        $this->references[$key] = $reference;
    }

    public function contains(string $label): bool
    {
        $label = $this->normalizer->normalize($label);

        return isset($this->references[$label]);
    }

    public function get(string $label): ?ReferenceInterface
    {
        $label = $this->normalizer->normalize($label);

        return $this->references[$label] ?? null;
    }

    /**
     * @return \Traversable<string, ReferenceInterface>
     */
    public function getIterator(): \Traversable
    {
        foreach ($this->references as $normalizedLabel => $reference) {
            yield $normalizedLabel => $reference;
        }
    }

    public function count(): int
    {
        return \count($this->references);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODk1MjA3MjM2NjMzMTkxMiA1MzgzMDA5ODM3NzQ1MzkzIDY0MTc5MzMyMjcwMDkxNjY=