yougitai-secure-showcase/src/Frontend/ReadmeOutputFilter.phpPHP
<?php
namespace YougitAI\SecureShowcase\Frontend;
use YougitAI\SecureShowcase\Repository\RepositoryService;
final class ReadmeOutputFilter {
public function __construct( private RepositoryService $repositories ) {}
public function register(): void {
add_action( 'template_redirect', [ $this, 'begin' ], 1 );
}
public function begin(): void {
if ( empty( get_query_var( 'yougitai_showcase' ) ) || ! empty( $_GET['yougitai_readme_asset'] ) ) {
return;
}
ob_start( [ $this, 'rewrite' ] );
}
public function rewrite( string $html ): string {
$slug = sanitize_title( (string) get_query_var( 'yougitai_showcase' ) );
$repository = $slug !== '' ? $this->repositories->find_by_slug( $slug ) : null;
if ( ! $repository || empty( $repository['active_snapshot_id'] ) ) {
return $html;
}
$readme = $this->repositories->public_readme(
(int) $repository['id'],
(int) $repository['active_snapshot_id']
);
if ( ! $readme || empty( $readme['content'] ) ) {
return $html;
}
$renderer = new Readme( $this->repositories );
$rendered = $renderer->render( $repository, $readme );
$style = '<style id="yougitai-readme-rendered-css">'
. '.yougitai-readme-content{line-height:1.65;overflow-wrap:anywhere}'
. '.yougitai-readme-content>:first-child{margin-top:0}'
. '.yougitai-readme-content>:last-child{margin-bottom:0}'
. '.yougitai-readme-content h1,.yougitai-readme-content h2,.yougitai-readme-content h3,.yougitai-readme-content h4{margin:1.35em 0 .55em;line-height:1.25}'
. '.yougitai-readme-content p,.yougitai-readme-content ul,.yougitai-readme-content ol,.yougitai-readme-content blockquote,.yougitai-readme-content pre{margin:0 0 1em}'
. '.yougitai-readme-content img{display:block;max-width:100%;height:auto;margin:1rem auto;border-radius:12px}.yougitai-readme-gallery{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem;margin:1rem 0}.yougitai-readme-gallery img{display:block;margin:0;max-width:180px;width:auto;height:auto}.yougitai-readme-caption{display:block;text-align:center;margin:-.25rem 0 1rem;opacity:.72;font-size:.9em}.yougitai-readme-table-wrap{overflow-x:auto;margin:1rem 0}.yougitai-readme-table-wrap table{width:100%;border-collapse:collapse}.yougitai-readme-table-wrap th,.yougitai-readme-table-wrap td{text-align:left;vertical-align:top;padding:.65rem .75rem;border-bottom:1px solid rgba(127,127,127,.25)}.yougitai-readme-table-wrap th{font-weight:700}'
. '.yougitai-readme-content pre{overflow-x:auto;padding:1rem;border-radius:10px}'
. '.yougitai-readme-content blockquote{padding-left:1rem;border-left:3px solid currentColor;opacity:.85}'
. '</style>';
$rendered = preg_replace(
'#<p><p align="center"><sub>(.*?)</sub></p></p>#si',
'<span class="yougitai-readme-caption">$1</span>',
$rendered
) ?? $rendered;
$rendered = preg_replace(
'#<p><p align="center">\s*(.*?)\s*</p></p>#si',
'<div class="yougitai-readme-gallery">$1</div>',
$rendered
) ?? $rendered;
$replacement = $style . '<div class="yougitai-readme-content">' . $rendered . '</div>';
$pattern = '#(<div class="yougitai-readme">\s*<h3>.*?</h3>\s*)<pre>.*?</pre>#si';
$updated = preg_replace( $pattern, '$1' . $replacement, $html, 1 );
return is_string( $updated ) ? $updated : $html;
}
}