<?php
/**
 * Server-side rendering of the `core/comments-pagination` block.
 *
 * @package WordPress
 */

/**
 * Renders the `core/comments-pagination` block on the server.
 *
 * @since 6.0.0
 *
 * @param array  $attributes Block attributes.
 * @param string $content    Block default content.
 *
 * @return string Returns the wrapper for the Comments pagination.
 */
function render_block_core_comments_pagination( $attributes, $content ) {
    if ( empty( trim( $content ) ) ) {
        return '';
    }

    if ( post_password_required() ) {
        return;
    }

    $classes            = ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) ? 'has-link-color' : '';
    $wrapper_attributes = get_block_wrapper_attributes(
        array(
            'aria-label' => __( 'Comments pagination' ),
            'class'      => $classes,
        )
    );

    return sprintf(
        '<nav %1$s>%2$s</nav>',
        $wrapper_attributes,
        $content
    );
}

/**
 * Registers the `core/comments-pagination` block on the server.
 *
 * @since 6.0.0
 */
function register_block_core_comments_pagination() {
    register_block_type_from_metadata(
        __DIR__ . '/comments-pagination',
        array(
            'render_callback' => 'render_block_core_comments_pagination',
        )
    );
}
add_action( 'init', 'register_block_core_comments_pagination' );