Common functionality for the "user_id + message_id or inline_message_id" dilemma

Author: unreal4u

src/Abstracts/TelegramMethods.php

@@ -77,4 +77,27 @@ final public function export(): array
 
         return $finalArray;
     }
+
+    /**
+     * Will resolve the dependency of a mandatory inline_message_id OR a chat_id + message_id
+     *
+     * NOTE: This will use pass by reference instead of copy on write as the use-case for this functions allows this
+     *
+     * @param array $return
+     * @return array
+     */
+    final protected function mandatoryUserOrInlineMessageId(array &$return): array
+    {
+        if (empty($this->chat_id) && empty($this->message_id)) {
+            $return[] = 'inline_message_id';
+        }
+
+        // On the other hand, chat_id and message_id are mandatory if inline_message_id is not filled in
+        if (empty($this->inline_message_id)) {
+            $return[] = 'chat_id';
+            $return[] = 'message_id';
+        }
+
+        return $return;
+    }
 }

src/Telegram/Methods/EditMessageCaption.php

@@ -50,6 +50,7 @@ class EditMessageCaption extends TelegramMethods
 
     public function getMandatoryFields(): array
     {
-        return [];
+        $returnValue = [];
+        return $this->mandatoryUserOrInlineMessageId($returnValue);
     }
 }

src/Telegram/Methods/EditMessageReplyMarkup.php

@@ -44,6 +44,7 @@ class EditMessageReplyMarkup extends TelegramMethods
 
     public function getMandatoryFields(): array
     {
-        return [];
+        $returnValue = [];
+        return $this->mandatoryUserOrInlineMessageId($returnValue);
     }
 }

src/Telegram/Methods/EditMessageText.php

@@ -64,17 +64,7 @@ class EditMessageText extends TelegramMethods
     public function getMandatoryFields(): array
     {
         $returnValue[] = 'text';
-        // Inline_message_id is mandatory if no chat_id and message_id are filled in
-        if (empty($this->chat_id) && empty($this->message_id)) {
-            $returnValue[] = 'inline_message_id';
-        }
-
-        // On the other hand, chat_id and message_id are mandatory if inline_message_id is not filled in
-        if (empty($this->inline_message_id)) {
-            $returnValue[] = 'chat_id';
-            $returnValue[] = 'message_id';
-        }
-
+        $this->mandatoryUserOrInlineMessageId($returnValue);
         return $returnValue;
     }
 }