<?php



#[AllowDynamicProperties]
final class WP_Block_Type_Registry {
	
	private $registered_block_types = array();

	
	private static $instance = null;

	
	public function register( $name, $args = array() ) {
		$block_type = null;
		if ( $name instanceof WP_Block_Type ) {
			$block_type = $name;
			$name       = $block_type->name;
		}

		if ( ! is_string( $name ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block type names must be strings.' ),
				'5.0.0'
			);
			return false;
		}

		if ( preg_match( '/[A-Z]+/', $name ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block type names must not contain uppercase characters.' ),
				'5.0.0'
			);
			return false;
		}

		$name_matcher = '/^[a-z0-9-]+\/[a-z0-9-]+$/';
		if ( ! preg_match( $name_matcher, $name ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block type names must contain a namespace prefix. Example: my-plugin/my-custom-block-type' ),
				'5.0.0'
			);
			return false;
		}

		if ( $this->is_registered( $name ) ) {
			_doing_it_wrong(
				__METHOD__,
				/* translators: %s: Block name. */
				sprintf( __( 'Block type "%s" is already registered.' ), $name ),
				'5.0.0'
			);
			return false;
		}

		if ( ! $block_type ) {
			$block_type = new WP_Block_Type( $name, $args );
		}

		$this->registered_block_types[ $name ] = $block_type;

		return $block_type;
	}

	
	public function unregister( $name ) {
		if ( $name instanceof WP_Block_Type ) {
			$name = $name->name;
		}

		if ( ! $this->is_registered( $name ) ) {
			_doing_it_wrong(
				__METHOD__,
				/* translators: %s: Block name. */
				sprintf( __( 'Block type "%s" is not registered.' ), $name ),
				'5.0.0'
			);
			return false;
		}

		$unregistered_block_type = $this->registered_block_types[ $name ];
		unset( $this->registered_block_types[ $name ] );

		return $unregistered_block_type;
	}

	
	public function get_registered( $name ) {
		if ( ! $this->is_registered( $name ) ) {
			return null;
		}

		return $this->registered_block_types[ $name ];
	}

	
	public function get_all_registered() {
		return $this->registered_block_types;
	}

	
	public function is_registered( $name ) {
		return isset( $this->registered_block_types[ $name ] );
	}

	public function __wakeup() {
		if ( ! $this->registered_block_types ) {
			return;
		}
		if ( ! is_array( $this->registered_block_types ) ) {
			throw new UnexpectedValueException();
		}
		foreach ( $this->registered_block_types as $value ) {
			if ( ! $value instanceof WP_Block_Type ) {
				throw new UnexpectedValueException();
			}
		}
	}

	
	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}
}