From 449aad775fee73629e28eeb0aca1dd2f16994ccd Mon Sep 17 00:00:00 2001
From: Thomas Skerbis <thomas.skerbis@mac.com>
Date: Sat, 28 Sep 2024 19:57:05 +0200
Subject: [PATCH] oembedHelper

---
 lib/video.php | 100 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 68 insertions(+), 32 deletions(-)

diff --git a/lib/video.php b/lib/video.php
index 138d6ae..d4b5ed8 100644
--- a/lib/video.php
+++ b/lib/video.php
@@ -1,11 +1,13 @@
 <?php
+
 namespace FriendsOfRedaxo\VidStack;
 
 use rex_escape;
 use rex_path;
 use rex_url;
 
-class Video {
+class Video
+{
     private readonly string $source;
     private string $title;
     private array $attributes = [];
@@ -15,7 +17,8 @@ class Video {
     private string $lang;
     private static array $translations = [];
 
-    public function __construct(string $source, string $title = '', string $lang = 'de') {
+    public function __construct(string $source, string $title = '', string $lang = 'de')
+    {
         $this->source = $source;
         $this->title = $title;
         $this->lang = $lang;
@@ -27,7 +30,8 @@ private static function getTranslationsFile(): string
         return rex_path::addon('vidstack', 'lang/translations.php');
     }
 
-    private function loadTranslations(): void {
+    private function loadTranslations(): void
+    {
         if (empty(self::$translations)) {
             $file = self::getTranslationsFile();
             if (file_exists($file)) {
@@ -38,30 +42,35 @@ private function loadTranslations(): void {
         }
     }
 
-    private function getText(string $key): string {
+    private function getText(string $key): string
+    {
         return self::$translations[$this->lang][$key] ?? "[[{$key}]]";
     }
 
-    public function setAttributes(array $attributes): void {
+    public function setAttributes(array $attributes): void
+    {
         $this->attributes = $attributes;
     }
 
-    public function setA11yContent(string $description, string $alternativeUrl = ''): void {
+    public function setA11yContent(string $description, string $alternativeUrl = ''): void
+    {
         $alternativeUrl = $alternativeUrl ?: $this->getAlternativeUrl();
-        
+
         $this->a11yContent = "<div class=\"video-description\">"
             . "<p>" . rex_escape($this->getText('video_description')) . ": " . rex_escape($description) . "</p></div>"
             . "<div class=\"alternative-links\">"
-            . "<p>" . rex_escape($this->getText('video_alternative_view')) . ": <a href=\"" . rex_escape($alternativeUrl) . "\">" 
+            . "<p>" . rex_escape($this->getText('video_alternative_view')) . ": <a href=\"" . rex_escape($alternativeUrl) . "\">"
             . rex_escape($this->getText('video_open_alternative_view')) . "</a></p>"
             . "</div>";
     }
 
-    public function setThumbnails(string $thumbnailsUrl): void {
+    public function setThumbnails(string $thumbnailsUrl): void
+    {
         $this->thumbnails = $thumbnailsUrl;
     }
 
-    public function addSubtitle(string $src, string $kind, string $label, string $lang, bool $default = false): void {
+    public function addSubtitle(string $src, string $kind, string $label, string $lang, bool $default = false): void
+    {
         $this->subtitles[] = [
             'src' => $src,
             'kind' => $kind,
@@ -71,18 +80,21 @@ public function addSubtitle(string $src, string $kind, string $label, string $la
         ];
     }
 
-    private function getSourceUrl(): string {
+    private function getSourceUrl(): string
+    {
         if (filter_var($this->source, FILTER_VALIDATE_URL)) {
             return $this->source;
         }
         return rex_url::media($this->source);
     }
 
-    private function getAlternativeUrl(): string {
+    private function getAlternativeUrl(): string
+    {
         return $this->getSourceUrl();
     }
 
-    private function getVideoInfo(): array {
+    private function getVideoInfo(): array
+    {
         $youtubePattern = '%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=|shorts/)|youtu\.be/)([^"&?/ ]{11})%i';
         if (preg_match($youtubePattern, $this->source, $match)) {
             return ['platform' => 'youtube', 'id' => $match[1]];
@@ -94,32 +106,33 @@ private function getVideoInfo(): array {
         return ['platform' => 'default', 'id' => ''];
     }
 
-    public function generateFull(): string {
+    public function generateFull(): string
+    {
         $videoInfo = $this->getVideoInfo();
         $attributesString = $this->generateAttributesString();
         $titleAttr = $this->title ? " title=\"" . rex_escape($this->title) . "\"" : '';
-        
+
         $code = "<div class=\"video-container\" role=\"region\" aria-label=\"" . rex_escape($this->getText('a11y_video_player')) . "\">";
-        
+
         if ($videoInfo['platform'] !== 'default') {
             $consentTextKey = "consent_text_{$videoInfo['platform']}";
             $consentText = $this->getText($consentTextKey);
             if ($consentText === "[[{$consentTextKey}]]") {
                 $consentText = $this->getText('consent_text_default');
             }
-            
+
             $code .= $this->generateConsentPlaceholder($consentText, $videoInfo['platform'], $videoInfo['id']);
         }
-        
+
         $code .= "<media-player{$titleAttr}{$attributesString}";
-        
+
         if ($videoInfo['platform'] !== 'default') {
             $code .= " data-video-platform=\"" . rex_escape($videoInfo['platform']) . "\" data-video-id=\"" . rex_escape($videoInfo['id']) . "\""
-                  . " aria-label=\"" . rex_escape($this->getText('a11y_video_from')) . " " . rex_escape($videoInfo['platform']) . "\"";
+                . " aria-label=\"" . rex_escape($this->getText('a11y_video_from')) . " " . rex_escape($videoInfo['platform']) . "\"";
         } else {
             $code .= " src=\"" . rex_escape($this->getSourceUrl()) . "\"";
         }
-        
+
         $code .= " role=\"application\"" . ($videoInfo['platform'] !== 'default' ? " style=\"display:none;\"" : "") . ">";
         $code .= "<media-provider></media-provider>";
         foreach ($this->subtitles as $subtitle) {
@@ -128,18 +141,19 @@ public function generateFull(): string {
         }
         $code .= "<media-video-layout" . ($this->thumbnails ? " thumbnails=\"" . rex_escape($this->thumbnails) . "\"" : "") . "></media-video-layout>";
         $code .= "</media-player>";
-        
+
         if ($this->a11yContent) {
             $code .= "<div class=\"a11y-content\" role=\"complementary\" aria-label=\"" . rex_escape($this->getText('a11y_additional_information')) . "\">"
-                   . $this->a11yContent
-                   . "</div>";
+                . $this->a11yContent
+                . "</div>";
         }
-        
+
         $code .= "</div>";
         return $code;
     }
 
-    public function generate(): string {
+    public function generate(): string
+    {
         $attributesString = $this->generateAttributesString();
         $titleAttr = $this->title ? " title=\"" . rex_escape($this->title) . "\"" : '';
         $sourceUrl = $this->getSourceUrl();
@@ -154,18 +168,40 @@ public function generate(): string {
         return $code;
     }
 
-    private function generateAttributesString(): string {
-        return array_reduce(array_keys($this->attributes), function($carry, $key) {
+    private function generateAttributesString(): string
+    {
+        return array_reduce(array_keys($this->attributes), function ($carry, $key) {
             $value = $this->attributes[$key];
             return $carry . (is_bool($value) ? ($value ? " " . rex_escape($key) : '') : " " . rex_escape($key) . "=\"" . rex_escape($value) . "\"");
         }, '');
     }
 
-    private function generateConsentPlaceholder(string $consentText, string $platform, string $videoId): string {
+    private function generateConsentPlaceholder(string $consentText, string $platform, string $videoId): string
+    {
         $buttonText = $this->getText('Load Video');
         return "<div class=\"consent-placeholder\" aria-hidden=\"true\" data-platform=\"" . rex_escape($platform) . "\" data-video-id=\"" . rex_escape($videoId) . "\" style=\"aspect-ratio: 16/9;\">"
-             . "<p>" . rex_escape($consentText) . "</p>"
-             . "<button type=\"button\" class=\"consent-button\">" . rex_escape($buttonText) . "</button>"
-             . "</div>";
+            . "<p>" . rex_escape($consentText) . "</p>"
+            . "<button type=\"button\" class=\"consent-button\">" . rex_escape($buttonText) . "</button>"
+            . "</div>";
+    }
+    public static function videoOembedHelper(): void
+    {
+        rex_extension::register('OUTPUT_FILTER', static function (rex_extension_point $ep) {
+            $content = $ep->getSubject();
+            return self::parseOembedTags($content);
+        }, rex_extension::LATE);
+    }
+
+    public static function parseOembedTags(string $content): string
+    {
+        return preg_replace_callback('/<oembed url="(.+?)"><\/oembed>/is', static function ($match) {
+            $video = new self($match[1]);
+            $video->setAttributes([
+                'crossorigin' => '',
+                'playsinline' => true,
+                'controls' => true
+            ]);
+            return $video->generateFull();
+        }, $content);
     }
 }