<?php

/**
 * Registers the `gtm/content-area-column` block on the server.
 */
function gtm_register_block_content_area_column() {
	gtm_register_block_type( 'content-area-column' );
}

add_action( 'init', 'gtm_register_block_content_area_column', 20 );

add_filter( 'gtm.BlockStyleCompiler.gtm/content-area-column', 'gtm_compile_block_css_content_area_column', 10, 3 );
function gtm_compile_block_css_content_area_column( $output, $attributes, $blockName ) {
	$block_style = ['classes' => [], 'style' => []];

	$isSidebar = $attributes['role'] == 'sidebar';

	$block_style['classes'][] = 'gtm-block';

	if ( $isSidebar && $attributes['enableSticky'] ) {
		$block_style['classes'][] = 'gtm-has-content-area-column-sticky';
	}

	if ( $attributes['role'] ) {
		$block_style['classes'][] = "gtm-has-content-area-column-role-{$attributes['role']}";
	}

	if ( $isSidebar ) {
		gtm_css_compileCssVar( $block_style, "content-area-column-width", $attributes['width'] );
	}

	// Apply to output
	$block_style['style'] = ['{{BLOCK}}' => $block_style['style']];

	return [
		'classes' => array_merge( $output['classes'], $block_style['classes'] ),
		'style'   => array_replace_recursive( $output['style'], $block_style['style'] ),
	];
}