<?php



#[AllowDynamicProperties]
final class WP_Block_Styles_Registry {
	
	private $registered_block_styles = array();

	
	private static $instance = null;

	
	public function register( $block_name, $style_properties ) {

		if ( ! is_string( $block_name ) && ! is_array( $block_name ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block name must be a string or array.' ),
				'6.6.0'
			);
			return false;
		}

		if ( ! isset( $style_properties['name'] ) || ! is_string( $style_properties['name'] ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block style name must be a string.' ),
				'5.3.0'
			);
			return false;
		}

		if ( str_contains( $style_properties['name'], ' ' ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'Block style name must not contain any spaces.' ),
				'5.9.0'
			);
			return false;
		}

		$block_style_name = $style_properties['name'];
		$block_names      = is_string( $block_name ) ? array( $block_name ) : $block_name;

		// Ensure there is a label defined.
		if ( empty( $style_properties['label'] ) ) {
			$style_properties['label'] = $block_style_name;
		}

		foreach ( $block_names as $name ) {
			if ( ! isset( $this->registered_block_styles[ $name ] ) ) {
				$this->registered_block_styles[ $name ] = array();
			}
			$this->registered_block_styles[ $name ][ $block_style_name ] = $style_properties;
		}

		return true;
	}

	
	public function unregister( $block_name, $block_style_name ) {
		if ( ! $this->is_registered( $block_name, $block_style_name ) ) {
			_doing_it_wrong(
				__METHOD__,
				/* translators: 1: Block name, 2: Block style name. */
				sprintf( __( 'Block "%1$s" does not contain a style named "%2$s".' ), $block_name, $block_style_name ),
				'5.3.0'
			);
			return false;
		}

		unset( $this->registered_block_styles[ $block_name ][ $block_style_name ] );

		return true;
	}

	
	public function get_registered( $block_name, $block_style_name ) {
		if ( ! $this->is_registered( $block_name, $block_style_name ) ) {
			return null;
		}

		return $this->registered_block_styles[ $block_name ][ $block_style_name ];
	}

	
	public function get_all_registered() {
		return $this->registered_block_styles;
	}

	
	public function get_registered_styles_for_block( $block_name ) {
		if ( isset( $this->registered_block_styles[ $block_name ] ) ) {
			return $this->registered_block_styles[ $block_name ];
		}
		return array();
	}

	
	public function is_registered( $block_name, $block_style_name ) {
		return isset( $this->registered_block_styles[ $block_name ][ $block_style_name ] );
	}

	
	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}
}