MAPG-115 add login functionality

src/Controller/LoginController.php

@@ -0,0 +1,73 @@
+<?php namespace MapGuesser\Controller;
+
+use MapGuesser\Database\Query\Select;
+use MapGuesser\Interfaces\Database\IResultSet;
+use MapGuesser\Interfaces\Request\IRequest;
+use MapGuesser\Interfaces\Response\IContent;
+use MapGuesser\Interfaces\Response\IRedirect;
+use MapGuesser\Model\User;
+use MapGuesser\Response\HtmlContent;
+use MapGuesser\Response\JsonContent;
+use MapGuesser\Response\Redirect;
+
+class LoginController
+{
+    private IRequest $request;
+
+    public function __construct(IRequest $request)
+    {
+        $this->request = $request;
+    }
+
+    public function getLoginForm()
+    {
+        $session = $this->request->session();
+
+        if ($session->get('user')) {
+            return new Redirect([\Container::$routeCollection->getRoute('index'), []], IRedirect::TEMPORARY);
+        }
+
+        $data = [];
+        return new HtmlContent('login', $data);
+    }
+
+    public function login(): IContent
+    {
+        $session = $this->request->session();
+
+        if ($session->get('user')) {
+            $data = ['success' => true];
+            return new JsonContent($data);
+        }
+
+        $select = new Select(\Container::$dbConnection, 'users');
+        $select->columns(User::getFields());
+        $select->where('email', '=', $this->request->post('email'));
+
+        $userData = $select->execute()->fetch(IResultSet::FETCH_ASSOC);
+
+        if ($userData === null) {
+            $data = ['error' => 'user_not_found'];
+            return new JsonContent($data);
+        }
+
+        $user = new User($userData);
+
+        if (!$user->checkPassword($this->request->post('password'))) {
+            $data = ['error' => 'password_not_match'];
+            return new JsonContent($data);
+        }
+
+        $session->set('user', $user);
+
+        $data = ['success' => true];
+        return new JsonContent($data);
+    }
+
+    public function logout(): IRedirect
+    {
+        $this->request->session()->delete('user');
+
+        return new Redirect([\Container::$routeCollection->getRoute('login'), []], IRedirect::TEMPORARY);
+    }
+}