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<?php

declare(strict_types=1);

namespace Laminas\Feed\Writer;

use Laminas\Feed\Writer\Exception\InvalidArgumentException;

use function array_key_exists;
use function is_a;
use function is_string;
use function sprintf;
use function substr;

class StandaloneExtensionManager implements ExtensionManagerInterface
{
    /** @var array<string, class-string> */
    private array $extensions = [
        'Atom\Renderer\Feed'               => Extension\Atom\Renderer\Feed::class,
        'Content\Renderer\Entry'           => Extension\Content\Renderer\Entry::class,
        'DublinCore\Renderer\Entry'        => Extension\DublinCore\Renderer\Entry::class,
        'DublinCore\Renderer\Feed'         => Extension\DublinCore\Renderer\Feed::class,
        'GooglePlayPodcast\Entry'          => Extension\GooglePlayPodcast\Entry::class,
        'GooglePlayPodcast\Feed'           => Extension\GooglePlayPodcast\Feed::class,
        'GooglePlayPodcast\Renderer\Entry' => Extension\GooglePlayPodcast\Renderer\Entry::class,
        'GooglePlayPodcast\Renderer\Feed'  => Extension\GooglePlayPodcast\Renderer\Feed::class,
        'ITunes\Entry'                     => Extension\ITunes\Entry::class,
        'ITunes\Feed'                      => Extension\ITunes\Feed::class,
        'ITunes\Renderer\Entry'            => Extension\ITunes\Renderer\Entry::class,
        'ITunes\Renderer\Feed'             => Extension\ITunes\Renderer\Feed::class,
        'PodcastIndex\Entry'               => Extension\PodcastIndex\Entry::class,
        'PodcastIndex\Feed'                => Extension\PodcastIndex\Feed::class,
        'PodcastIndex\Renderer\Entry'      => Extension\PodcastIndex\Renderer\Entry::class,
        'PodcastIndex\Renderer\Feed'       => Extension\PodcastIndex\Renderer\Feed::class,
        'Slash\Renderer\Entry'             => Extension\Slash\Renderer\Entry::class,
        'Threading\Renderer\Entry'         => Extension\Threading\Renderer\Entry::class,
        'WellFormedWeb\Renderer\Entry'     => Extension\WellFormedWeb\Renderer\Entry::class,
    ];

    /**
     * Do we have the extension?
     *
     * @param  string $extension
     * @return bool
     */
    public function has($extension)
    {
        return array_key_exists($extension, $this->extensions);
    }

    /**
     * Retrieve the extension
     *
     * @param  string $extension
     * @return mixed
     */
    public function get($extension)
    {
        $class = $this->extensions[$extension];
        return new $class();
    }

    /**
     * Add an extension.
     *
     * @param string $name
     * @param string $class
     * @psalm-param class-string $class
     * @return void
     */
    public function add($name, $class)
    {
        if (
            is_string($class)
            && (is_a($class, Extension\AbstractRenderer::class, true)
                || 'Feed' === substr($class, -4)
                || 'Entry' === substr($class, -5))
        ) {
            $this->extensions[$name] = $class;

            return;
        }

        throw new InvalidArgumentException(sprintf(
            'Plugin of type %s is invalid; must implement %s\Extension\RendererInterface '
            . 'or the classname must end in "Feed" or "Entry"',
            $class,
            __NAMESPACE__
        ));
    }

    /**
     * Remove an extension.
     *
     * @param string $name
     * @return void
     */
    public function remove($name)
    {
        unset($this->extensions[$name]);
    }
}