EmbedService.php: add WIP

inc/Services/Embed/EmbedService.php

@@ -0,0 +1,64 @@
+<?php
+namespace Vichan\Services\Embed;
+
+use RuntimeException;
+use Vichan\Context;
+use Vichan\Data\Driver\LogDriver;
+
+class EmbedService {
+	private array $tuples;
+	private LogDriver $log;
+
+	public function __construct(LogDriver $log) {
+		$this->log = $log;
+	}
+
+	/**
+	 * Undocumented function
+	 *
+	 * @param Context $ctx
+	 * @param string $rawText
+	 * @return void
+	 */
+	public function matchEmbed(Context $ctx, string $rawText) {
+		if (\filter_var($rawText, \FILTER_VALIDATE_URL) === false) {
+			return null;
+		}
+		$rawText = \trim($rawText);
+
+		foreach ($this->tuples as $cfg) {
+			if (!isset($cfg['match_regex'])) {
+				throw new \RuntimeException('Missing \'match_regex\' field');
+			}
+			$match_regex = $cfg['match_regex'];
+
+			if (\preg_match($match_regex, $rawText, $matches)) {
+				if (!isset($cfg['type'])) {
+					throw new \RuntimeException('Missing \'type\' field');
+				}
+				$type = $cfg['type'];
+
+				if ($type === 'oembed') {
+					if (!isset($cfg['provider'])) {
+						throw new \RuntimeException('Missing \'provider\' field');
+					}
+					$provider = $cfg['provider'];
+
+					$extractor = $ctx->get(OembedExtractor::class);
+					$oembed_resp = $extractor->fetch($provider, $rawText);
+
+
+				} elseif ($type === 'regex') {
+					if (!isset($cfg['thumbnail_url'])) {
+						throw new \RuntimeException('Missing \'thumbnail_url\' field');
+					}
+					$thumbnail_url_regex = $cfg['thumbnail_url'];
+					// Plz somebody review this.
+					$thumbnail_url = \preg_replace($match_regex, $thumbnail_url_regex, $rawText);
+				} else {
+					$this->log->log(LogDriver::ERROR, "Unknown embed type '$type', ignoring");
+				}
+			}
+		}
+	}
+}