first upload all files

Modules/Menu/MegaMenu/MegaMenu.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Modules\Menu\MegaMenu;
+
+use Illuminate\Support\Facades\Cache;
+use Modules\Menu\Entities\Menu as MenuModel;
+
+class MegaMenu
+{
+    private $menuId;
+
+    public function __construct($menuId)
+    {
+        $this->menuId = $menuId;
+    }
+
+    public function menus()
+    {
+        return Cache::tags(['mega_menu', 'menu_items', 'pages', 'categories'])
+            ->rememberForever(md5("mega_menu.{$this->menuId}:" . locale()), function () {
+                return $this->getMenus()->map(function ($menu) {
+                    return new Menu($menu);
+                });
+            });
+    }
+
+    private function getMenus()
+    {
+        return MenuModel::for($this->menuId)->where('menu_id', $this->menuId);
+    }
+}

Modules/Menu/MegaMenu/Menu.php

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+<?php
+
+namespace Modules\Menu\MegaMenu;
+
+use Modules\Category\Entities\Category;
+
+class Menu
+{
+    private $menu;
+    private $subMenus;
+
+    public function __construct($menu)
+    {
+        $this->menu = $menu;
+    }
+
+    public function isFluid()
+    {
+        return $this->menu->is_fluid;
+    }
+
+    public function url()
+    {
+        return $this->menu->url();
+    }
+
+    public function hasIcon()
+    {
+        return ! is_null($this->icon());
+    }
+
+    public function icon()
+    {
+        return $this->menu->icon;
+    }
+
+    public function hasBackgroundImage()
+    {
+        return ! is_null($this->backgroundImage());
+    }
+
+    public function backgroundImage()
+    {
+        return $this->menu->background_image->path;
+    }
+
+    public function target()
+    {
+        return $this->menu->target;
+    }
+
+    public function name()
+    {
+        return $this->menu->name;
+    }
+
+    public function hasSubMenus()
+    {
+        return $this->subMenus()->isNotEmpty();
+    }
+
+    public function subMenus()
+    {
+        if (! is_null($this->subMenus)) {
+            return $this->subMenus;
+        }
+
+        return $this->subMenus = $this->getSubMenus()->map(function ($subMenu) {
+            return new SubMenu($subMenu);
+        });
+    }
+
+    private function getSubMenus()
+    {
+        if ($this->menu->isCategoryType()) {
+            return $this->getCategorySubMenus();
+        }
+
+        return $this->menu->items ?? collect();
+    }
+
+    private function getCategorySubMenus()
+    {
+        return Category::tree()
+            ->where('id', $this->menu->category_id)
+            ->first()
+            ->items ?? collect();
+    }
+}

Modules/Menu/MegaMenu/SubMenu.php

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+<?php
+
+namespace Modules\Menu\MegaMenu;
+
+use Modules\Category\Entities\Category;
+
+class SubMenu
+{
+    private $subMenu;
+    private $subMenuItems;
+
+    public function __construct($subMenu)
+    {
+        $this->subMenu = $subMenu;
+    }
+
+    public function url()
+    {
+        return $this->subMenu->url();
+    }
+
+    public function target()
+    {
+        if ($this->subMenu instanceof Category) {
+            return '_self';
+        }
+
+        return $this->subMenu->target;
+    }
+
+    public function name()
+    {
+        return $this->subMenu->name;
+    }
+
+    public function hasItems()
+    {
+        return $this->items()->isNotEmpty();
+    }
+
+    public function items()
+    {
+        if (! is_null($this->subMenuItems)) {
+            return $this->subMenuItems;
+        }
+
+        return $this->subMenuItems = $this->subMenu->items->map(function ($item) {
+            return new SubMenu($item);
+        });
+    }
+}