Add CommandEvent class to handle bot commands

src/TgBotLib/Events/CommandEvent.php

@@ -0,0 +1,64 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use OptsLib\Parse;
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Enums\EventType;
+    use TgBotLib\Objects\Message;
+
+    abstract class CommandEvent extends UpdateEvent
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function getEventType(): EventType
+        {
+            return EventType::COMMAND;
+        }
+
+        /**
+         * Retrieve the command to be executed.
+         *
+         * In the format of a string, this method should return the command to be executed.
+         * for example if the command is "/start", this method should return "start".
+         *
+         * @return string The command to be executed.
+         */
+        public abstract static function getCommand(): string;
+
+        /**
+         * Retrieves the message from the update.
+         *
+         * @return Message The message contained within the update.
+         */
+        protected function getMessage(): Message
+        {
+            return $this->update->getMessage();
+        }
+
+        /**
+         * Extracts and returns the arguments of the command from the message text.
+         *
+         * @return string The arguments of the command.
+         */
+        protected function getArguments(): string
+        {
+            if(strlen($this->getMessage()->getText()) <= strlen(static::getCommand()) + 1)
+            {
+                return '';
+            }
+
+            return substr($this->getMessage()->getText(), strlen(static::getCommand()) + 1);
+        }
+
+        /**
+         * Parses and returns the command arguments as an array.
+         *
+         * @return array The parsed command arguments.
+         */
+        protected function getParsedArguments(): array
+        {
+            return Parse::parseArgument($this->getArguments());
+        }
+    }