Improve 404 pages

src/classes/page.php

@@ -657,6 +657,50 @@ class Page
         <?php
     }
 
+    public function errorDocument(int $statusCode, object $objectNotFound): void
+    {
+        http_response_code($statusCode);
+
+        $this->header();
+        $this->bodyStart();
+        $this->navigation();
+
+        $class     = new \ReflectionClass($objectNotFound);
+        $className = $class->getShortName();
+        ?>
+        <main>
+            <div class="ui container">
+                <h1 class="ui header">
+                    <?= $statusCode ?>
+                    <div class="sub header"><?= sprintf(__('%s not found'), $className) ?></div>
+                </h1>
+
+                <?= $this->messages() ?>
+
+                <?php
+                switch ($statusCode) {
+                    case 404:
+                        switch ($className) {
+                            case 'Wishlist':
+                                echo '<p>' . sprintf(__('The requested %s was not found and likely deleted by its creator.'), $className) . '</p>';
+                                break;
+
+                            default:
+                                echo '<p>' . sprintf(__('The requested %s was not found.'), $className) . '</p>';
+                                break;
+                        }
+                        break;
+                }
+                ?>
+            </div>
+        </main>
+        <?php
+        $this->footer();
+        $this->bodyEnd();
+
+        die();
+    }
+
     public function messages(): string
     {
         $html = '';

src/classes/wish.php

@@ -49,6 +49,8 @@ class Wish
 
     public \stdClass $info;
 
+    public bool $exists = false;
+
     public function __construct(int|array $wish, bool $generateCache = false)
     {
         global $database;
@@ -68,10 +70,11 @@ class Wish
         }
 
         if ($columns) {
+            $this->exists = true;
+
             foreach ($columns as $key => $value) {
                 $this->$key = $value;
             }
-        }
 
             $this->info = new \stdClass();
 
@@ -90,6 +93,7 @@ class Wish
                 $this->image = '/src/assets/img/no-image.svg';
             }
         }
+    }
 
     public function getCard(int $ofUser): string
     {
@@ -202,10 +206,14 @@ class Wish
 
     public function getTitle(): string
     {
+        $title = __('Wish not found');
+
+        if ($this->exists) {
             $title = $this->title
                   ?: $this->description
                   ?: $this->url
                   ?: $this->id;
+        }
 
         return $title;
     }

src/classes/wishlist.php

@@ -36,13 +36,12 @@ class Wishlist
                   WHERE `' . $column . '` = ' . $id_or_hash . ';')
         ->fetch();
 
+        if ($columns) {
+            $this->exists = true;
+
             foreach ($columns as $key => $value) {
                 $this->$key = $value;
             }
-
-        /** Exists */
-        if (isset($this->id)) {
-            $this->exists = true;
         } else {
             return;
         }
@@ -109,4 +108,15 @@ class Wishlist
 
         return $html;
     }
+
+    public function getTitle(): string
+    {
+        $title = __('Wishlist not found');
+
+        if ($this->exists) {
+            $title = $this->name;
+        }
+
+        return $title;
+    }
 }

src/pages/wish.php

@@ -35,6 +35,10 @@ if ('POST' === $_SERVER['REQUEST_METHOD'] && count($_POST) >= 0) {
     $page->messages[] = Page::success(__('Wish successfully updated.'), __('Success'));
 }
 
+if (!$userIsAuthenticated || !$wish->exists) {
+    $page->errorDocument(404, $wish);
+}
+
 $wishlists = $user->getWishlists($wish->wishlist);
 
 foreach ($wishlists as $wishlist) {
@@ -44,15 +48,6 @@ foreach ($wishlists as $wishlist) {
     }
 }
 
-if (!$userIsAuthenticated) {
-    http_response_code(404);
-    ?>
-    <h1><?= __('Not found') ?></h1>
-    <p><?= __('The requested Wish was not found.') ?></p>
-    <?php
-    die();
-}
-
 $page->header();
 $page->bodyStart();
 $page->navigation();

src/pages/wishlist.php

@@ -9,17 +9,12 @@
 use wishthis\{Page, User, Wishlist};
 
 $wishlist = new Wishlist($_GET['wishlist']);
+$page     = new Page(__FILE__, $wishlist->getTitle());
 
 if (!$wishlist->exists) {
-    http_response_code(404);
-    ?>
-    <h1><?= __('Not found') ?></h1>
-    <p><?= __('The requested Wishlist was not found and likely deleted by its creator.') ?></p>
-    <?php
-    die();
+    $page->errorDocument(404, $wishlist);
 }
 
-$page = new Page(__FILE__, $wishlist->name);
 $page->header();
 $page->bodyStart();
 $page->navigation();