Replace isValidEmoji by method in EmojiHelper

Signed-off-by: Vitor Mattos <vitor@php.rio>

apps/user_status/lib/Service/EmojiService.php

@@ -26,6 +26,7 @@
  */
 namespace OCA\UserStatus\Service;
 
+use OC\Comments\EmojiHelper;
 use OCP\IDBConnection;
 
 /**
@@ -60,43 +61,7 @@ public function doesPlatformSupportEmoji(): bool {
 	 * @return bool
 	 */
 	public function isValidEmoji(string $emoji): bool {
-		$intlBreakIterator = \IntlBreakIterator::createCharacterInstance();
-		$intlBreakIterator->setText($emoji);
-
-		$characterCount = 0;
-		while ($intlBreakIterator->next() !== \IntlBreakIterator::DONE) {
-			$characterCount++;
-		}
-
-		if ($characterCount !== 1) {
-			return false;
-		}
-
-		$codePointIterator = \IntlBreakIterator::createCodePointInstance();
-		$codePointIterator->setText($emoji);
-
-		foreach ($codePointIterator->getPartsIterator() as $codePoint) {
-			$codePointType = \IntlChar::charType($codePoint);
-
-			// If the current code-point is an emoji or a modifier (like a skin-tone)
-			// just continue and check the next character
-			if ($codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_SYMBOL ||
-				$codePointType === \IntlChar::CHAR_CATEGORY_MODIFIER_LETTER ||
-				$codePointType === \IntlChar::CHAR_CATEGORY_OTHER_SYMBOL ||
-				$codePointType === \IntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPES) {
-				continue;
-			}
-
-			// If it's neither a modifier nor an emoji, we only allow
-			// a zero-width-joiner or a variation selector 16
-			$codePointValue = \IntlChar::ord($codePoint);
-			if ($codePointValue === 8205 || $codePointValue === 65039) {
-				continue;
-			}
-
-			return false;
-		}
-
-		return true;
+		$emojiHelper = new EmojiHelper($this->db);
+		return $emojiHelper->isValidEmoji($emoji);
 	}
 }