fix: links to episodes from downloads

src/Twig/Extensions/UtilExtension.php

@@ -4,6 +4,7 @@ namespace App\Twig\Extensions;
 
 use App\Base\Service\MediaFiles;
 use App\Torrentio\Action\Result\GetTvShowOptionsResult;
+use App\Twig\Dto\EpisodeIdDto;
 use ChrisUllyott\FileSize;
 use Twig\Attribute\AsTwigFilter;
 use Twig\Attribute\AsTwigFunction;
@@ -63,4 +64,42 @@ class UtilExtension
         return "S". str_pad($season, 2, "0", STR_PAD_LEFT) .
             "E". str_pad($episode, 2, "0", STR_PAD_LEFT);
     }
+
+    #[AsTwigFunction('episode_anchor')]
+    public function episodeAnchor($season, $episode): ?string
+    {
+        return "episode_" . $season . "_" . $episode;
+    }
+
+    #[AsTwigFunction('extract_from_episode_id')]
+    public function extractFromEpisodeId(?string $episodeId): ?EpisodeIdDto
+    {
+        if (null === $episodeId) {
+            return new EpisodeIdDto("", "");
+        }
+
+        // Capture season
+        $seasonMatch = [];
+        preg_match('/[sS]\d\d/', $episodeId, $seasonMatch);
+        if (empty($seasonMatch)) {
+            $season = "";
+        } else {
+            $season = str_replace(['S', 's'], '', $seasonMatch[0]);
+        }
+
+        // Capture episode
+        $episodeMatch = [];
+        preg_match('/[eE]\d\d/', $episodeId, $episodeMatch);
+        if (empty($episodeMatch)) {
+            $episode = "";
+        } else {
+            $episode = str_replace(['E', 'e'], '', $episodeMatch[0]);
+        }
+
+        if (null === $season && null === $episode) {
+            return new EpisodeIdDto("", "");
+        }
+
+        return new EpisodeIdDto($season, $episode);
+    }
 }