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

/**
 * Renders the `core/term-count` block on the server.
 *
 * @since 6.9.0
 *
 * @param array    $attributes Block attributes.
 * @param string   $content    Block default content.
 * @param WP_Block $block      Block instance.
 *
 * @return string Returns the count of the current taxonomy term wrapped inside a heading tag.
 */
function render_block_core_term_count( $attributes, $content, $block ) {
    // Get term from context or from the current query.
    if ( isset( $block->context['termId'] ) && isset( $block->context['taxonomy'] ) ) {
        $term = get_term( $block->context['termId'], $block->context['taxonomy'] );
    } else {
        $term = get_queried_object();
        if ( ! $term instanceof WP_Term ) {
            $term = null;
        }
    }

    if ( ! $term || is_wp_error( $term ) ) {
        return '';
    }

    $term_count = $term->count;

    // Format the term count based on bracket type.
    switch ( $attributes['bracketType'] ) {
        case 'none':
            // No formatting needed.
            break;
        case 'round':
            $term_count = "({$term_count})";
            break;
        case 'square':
            $term_count = "[{$term_count}]";
            break;
        case 'curly':
            $term_count = "{{$term_count}}";
            break;
        case 'angle':
            $term_count = "<{$term_count}>";
            break;
        default:
            // Default to no formatting for unknown types.
            break;
    }

    $wrapper_attributes = get_block_wrapper_attributes();

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

/**
 * Registers the `core/term-count` block on the server.
 *
 * @since 6.9.0
 */
function register_block_core_term_count() {
    register_block_type_from_metadata(
        __DIR__ . '/term-count',
        array(
            'render_callback' => 'render_block_core_term_count',
        )
    );
}
add_action( 'init', 'register_block_core_term_count' );