added email change strategies

lib/User/Service/AccountConfirmationService.php

@@ -0,0 +1,47 @@
+<?php
+namespace Da\User\Service;
+
+
+use Da\User\Contracts\ServiceInterface;
+use Da\User\Event\UserEvent;
+use Da\User\Model\Token;
+use Da\User\Model\User;
+use Da\User\Query\TokenQuery;
+
+class AccountConfirmationService implements ServiceInterface
+{
+    protected $model;
+    protected $code;
+    protected $tokenQuery;
+    protected $userConfirmationService;
+
+    public function __construct(
+        $code,
+        User $model,
+        TokenQuery $tokenQuery,
+        UserConfirmationService $userConfirmationService
+    ) {
+        $this->code = $code;
+        $this->model = $model;
+        $this->tokenQuery = $tokenQuery;
+        $this->userConfirmationService = $userConfirmationService;
+    }
+
+    public function run()
+    {
+        $token = $this->tokenQuery
+            ->whereUserId($this->model->id)
+            ->whereCode($this->code)
+            ->whereIsConfirmationType()
+            ->one();
+
+        if ($token instanceof Token && !$token->getIsExpired()) {
+            $token->delete();
+
+            return $this->userConfirmationService->run();
+        }
+
+        return false;
+    }
+
+}