No patterns for now

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/AppInfo/Application.php

@@ -25,6 +25,7 @@ namespace OCA\Spreed\AppInfo;
 use OCA\Spreed\Activity\Listener as ActivityListener;
 use OCA\Spreed\Capabilities;
 use OCA\Spreed\Chat\ChatManager;
+use OCA\Spreed\Chat\Command\Listener as CommandListener;
 use OCA\Spreed\Chat\Listener as ChatListener;
 use OCA\Spreed\Chat\SystemMessage\Listener as SystemMessageListener;
 use OCA\Spreed\Config;
@@ -72,6 +73,7 @@ class Application extends App {
 		FilesTemplateLoader::register($dispatcher);
 		RoomShareProvider::register($dispatcher);
 		SignalingListener::register($dispatcher);
+		CommandListener::register($dispatcher);
 
 		$this->registerRoomActivityHooks($dispatcher);
 		$this->registerChatHooks($dispatcher);

lib/Chat/ChatManager.php

@@ -116,6 +116,10 @@ class ChatManager {
 		// comment
 		$comment->setVerb('comment');
 
+		$this->dispatcher->dispatch(self::class . '::preSendMessage', new GenericEvent($chat, [
+			'comment' => $comment,
+		]));
+
 		try {
 			$this->commentsManager->save($comment);
 

lib/Chat/Command/DefaultExecutor.php

@@ -0,0 +1,35 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Spreed\Chat\Command;
+
+
+use OCA\Spreed\Model\Command;
+use OCA\Spreed\Room;
+use OCP\Comments\IComment;
+
+class DefaultExecutor {
+
+	public function exec(Room $room, IComment $message, Command $command): void {
+
+	}
+}

lib/Chat/Command/Listener.php

@@ -0,0 +1,93 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Spreed\Chat\Command;
+
+
+use OCA\Spreed\Chat\ChatManager;
+use OCA\Spreed\Model\CommandMapper;
+use OCA\Spreed\Room;
+use OCP\Comments\IComment;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\EventDispatcher\GenericEvent;
+
+class Listener {
+
+	/** @var EventDispatcherInterface */
+	protected $dispatcher;
+	/** @var CommandMapper */
+	protected $commandMapper;
+	/** @var DefaultExecutor */
+	protected $defaultExecutor;
+
+	public function __construct(EventDispatcherInterface $dispatcher, CommandMapper $commandMapper, DefaultExecutor $defaultExecutor) {
+		$this->dispatcher = $dispatcher;
+		$this->commandMapper = $commandMapper;
+		$this->defaultExecutor = $defaultExecutor;
+	}
+
+	public static function register(EventDispatcherInterface $dispatcher): void {
+		$dispatcher->addListener(ChatManager::class . '::preSendMessage', function(GenericEvent $event) {
+			/** @var IComment $message */
+			$message = $event->getArgument('comment');
+			if (strpos($message->getMessage(), '/') === 0) {
+				/** @var self $listener */
+				$listener = \OC::$server->query(self::class);
+
+				if (!$listener->executeCommands($event)) {
+					$listener->showHelp($event);
+				}
+			}
+		});
+	}
+
+	public function executeCommands(GenericEvent $event): bool {
+		/** @var Room $room */
+		$room = $event->getSubject();
+		/** @var IComment $message */
+		$message = $event->getArgument('comment');
+
+		$commands = $this->commandMapper->findAll();
+		foreach ($commands as $command) {
+			if ($this->matchesCommand($message->getMessage(), $command->getCommand())) {
+				$this->defaultExecutor->exec($room, $message, $command);
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	public function showHelp(GenericEvent $event): void {
+		// FIXME
+	}
+
+	protected function matchesCommand(string $message, string $command): bool {
+		$command = '/' . $command;
+
+		if ($message === $command) {
+			return true;
+		}
+
+		return strpos($message, $command . ' ') === 0;
+	}
+}

lib/Migration/Version5099Date20190121102337.php

@@ -35,7 +35,7 @@ class Version5099Date20190121102337 extends SimpleMigrationStep {
 	 * @param array $options
 	 * @return null|ISchemaWrapper
 	 */
-	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options) {
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
 		/** @var ISchemaWrapper $schema */
 		$schema = $schemaClosure();
 
@@ -51,18 +51,17 @@ class Version5099Date20190121102337 extends SimpleMigrationStep {
 				'notnull' => true,
 				'length' => 64,
 			]);
-			$table->addColumn('pattern', Type::STRING, [
+			$table->addColumn('command', Type::STRING, [
 				'notnull' => true,
-				'length' => 512,
+				'length' => 64,
 			]);
-			$table->addColumn('script', Type::STRING, [
+			$table->addColumn('script', Type::TEXT, [
 				'notnull' => true,
-				'length' => 512,
 			]);
 			$table->addColumn('output', Type::INTEGER, [
 				'notnull' => true,
 				'length' => 6,
-				'default' => 0,
+				'default' => 1,
 			]);
 
 			$table->setPrimaryKey(['id']);

lib/Model/Command.php

@@ -27,8 +27,8 @@ use OCP\AppFramework\Db\Entity;
 /**
  * @method void setName(string $name)
  * @method string getName()
- * @method void setPattern(string $pattern)
- * @method string getPattern()
+ * @method void setCommand(string $command)
+ * @method string getCommand()
  * @method void setScript(string $name)
  * @method string getScript()
  * @method void setOutput(int $output)
@@ -44,7 +44,7 @@ class Command extends Entity {
 	protected $name;
 
 	/** @var string */
-	protected $pattern;
+	protected $command;
 
 	/** @var string */
 	protected $script;
@@ -54,7 +54,7 @@ class Command extends Entity {
 
 	public function __construct() {
 		$this->addType('name', 'string');
-		$this->addType('pattern', 'string');
+		$this->addType('command', 'string');
 		$this->addType('script', 'string');
 		$this->addType('output', 'int');
 	}