Allow using Wikidata links for fetching information for actors

src/NodaWikidataFetcher.php

@@ -82,6 +82,54 @@ final class NodaWikidataFetcher {
     /** @var MDMysqli */
     private MDMysqli $_mysqli_noda;
 
+    /**
+     * Attempts to fetch a Wikidata ID from a provided URL.
+     *
+     * @param string $linkUrl Link to a page.
+     *
+     * @return string
+     */
+    public static function getWikidataIdFromLink(string $linkUrl):string {
+
+        if (!filter_var($linkUrl, FILTER_VALIDATE_URL)) {
+            throw new MDExpectedException("Invalid URL");
+        }
+
+        if (strpos($linkUrl, "https://www.wikidata.org/wiki/") !== false) {
+            if ($output = self::getWikidataIdFromWikidataLink($linkUrl)) {
+                return $output;
+            }
+        }
+
+        if (strpos($linkUrl, ".wikipedia.org/") !== false) {
+            if ($output = self::getWikidataIdFromWikipedia($linkUrl)) {
+                return $output;
+            }
+        }
+
+        return '';
+
+    }
+
+    /**
+     * Attempts to fetch a Wikidata ID from a provided URL.
+     *
+     * @param string $linkUrl Link to a Wikidata page.
+     *
+     * @return string
+     */
+    public static function getWikidataIdFromWikidataLink(string $linkUrl):string {
+
+        if (strpos($linkUrl, "https://www.wikidata.org/wiki/") === false) {
+            return '';
+        }
+
+        $linkUrl = trim($linkUrl, '/ ');
+        $parts = explode('/', $linkUrl);
+        return end($parts);
+
+    }
+
     /**
      * Attempts to fetch a Wikidata ID from a provided URL.
      *
@@ -91,8 +139,8 @@ final class NodaWikidataFetcher {
      */
     public static function getWikidataIdFromWikipedia(string $linkUrl):string {
 
-        if (!filter_var($linkUrl, FILTER_VALIDATE_URL)) {
-            throw new MDExpectedException("Invalid URL");
+        if (strpos($linkUrl, ".wikipedia.org/") === false) {
+            return '';
         }
 
         $wikipedia_cont = MD_STD::runCurl($linkUrl);