MAPG-69 merge SignupController to LoginController and introduce Google login/sign up

views/login/google_login.php

@@ -0,0 +1,9 @@
+<?php require ROOT . '/views/templates/main_header.php'; ?>
+<?php require ROOT . '/views/templates/header.php'; ?>
+<div class="main">
+    <h2>Login up with Google</h2>
+    <div class="box">
+        <p class="error justify">Authenticating with Google failed. Please <a href="/login/google" title="Login with Google">retry</a>!</p>
+    </div>
+</div>
+<?php require ROOT . '/views/templates/main_footer.php'; ?>

views/login/google_signup.php

@@ -0,0 +1,40 @@
+<?php require ROOT . '/views/templates/main_header.php'; ?>
+<?php require ROOT . '/views/templates/header.php'; ?>
+<div class="main">
+    <h2>Sign up</h2>
+    <div class="box">
+        <form id="googleSignupForm" action="/signup/google" method="post">
+            <?php if ($found): ?>
+                <p class="justify">Please confirm that you link your account to your Google account.</p>
+            <?php else: ?>
+                <p class="justify">Please confirm your sign up request. Your account will be linked to your Google account.</p>
+            <?php endif; ?>
+            <input class="big fullWidth marginTop" type="email" name="email" placeholder="Email address" value="<?= $email ?>" disabled>
+            <div class="right marginTop">
+                <button type="submit">
+                    <?php if ($found): ?>
+                        Link
+                    <?php else: ?>
+                        Sign up
+                    <?php endif; ?>
+                </button>
+            </div>
+        </form>
+    </div>
+</div>
+<script>
+    (function () {
+        var form = document.getElementById('googleSignupForm');
+
+        form.onsubmit = function (e) {
+            document.getElementById('loading').style.visibility = 'visible';
+
+            e.preventDefault();
+
+            MapGuesser.httpRequest('POST', form.action, function () {
+                window.location.replace('/');
+            });
+        };
+    })();
+</script>
+<?php require ROOT . '/views/templates/main_footer.php'; ?>

views/login/login.php

@@ -15,6 +15,10 @@ $jsFiles = [
             <div class="right marginTop">
                 <button type="submit">Login</button>
             </div>
+            <hr>
+            <div class="center">
+                <a class="button yellow" href="/login/google" title="Login with Google">Login with Google</a>
+            </div>
         </form>
     </div>
 </div>

views/login/signup.php

@@ -16,6 +16,10 @@ $jsFiles = [
             <div class="right marginTop">
                 <button type="submit">Sign up</button>
             </div>
+            <hr>
+            <div class="center">
+                <a class="button yellow" href="/login/google" title="Signup with Google">Signup with Google</a>
+            </div>
         </form>
     </div>
 </div>