FEATURE: do not require template to be set in admin

This reverts commit 08e97fe2cb.

.env.example

@@ -1,8 +1,8 @@
-APP_ENV=testing
+APP_KEY=
-APP_DEBUG=true
+APP_ENV=
-APP_KEY=ZKZAzM23wQ6BPji6zffBjaTzZ3yW7zKQ
+APP_DEBUG=
 
-DB_HOST=localhost
+DB_HOST=
 DB_DATABASE=
 DB_USERNAME=
 DB_PASSWORD=
@@ -16,5 +16,4 @@ MAIL_PASSWORD=
 
 SITE_URL=/
 UPLOAD_URL=/public/uploads
-THUMBNAILS_URL=/uploads/thumbnails
+THUMBNAIL_URL=/public/uploads/thumbnails
-THEME=

.gitignore

@@ -1,8 +1,10 @@
 # published files from modules
-/resources/views/modules
+/modules
 /public/modules
-/resources/views/vendor
 /public/assets
+/resources/views/modules
+/resources/views/visitor
+/resources/views/vendor
 
 # directories with custom templates
 **/views/**/custom/*
@@ -26,3 +28,10 @@
 
 # meta information created by installer
 .install
+/node_modules/
+/public/css/
+/public/js
+/public/fonts
+/bower_components
+.sass-cache
+!/resources/views/vendor/

app/CMS/Contracts/Content/AdvancedContentModifier.php

@@ -0,0 +1,18 @@
+<?php
+namespace App\CMS\Contracts\Content;
+
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+
+interface AdvancedContentModifier {
+    /**
+     * Method called right after content page is marked as deleted
+     *
+     * This method is supposed to clean after "deleted" page.
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function delete(Content $content);
+}

app/CMS/Contracts/Content/ContentTitles.php

@@ -0,0 +1,40 @@
+<?php
+namespace App\CMS\Contracts\Content;
+
+use App\Models\Content\Content;
+
+/**
+ * Interface ContentTitles
+ *
+ * Classes which implement this interface get the ability to rewrite default text on edit/create/overview of content
+ * page.
+ *
+ * @package App\CMS\Handlers\Contracts
+ */
+interface ContentTitles
+{
+    /**
+     * Get translated title for pages overview of given type.
+     *
+     * This value is used for rendering list of all content pages of given type in administration.
+     *
+     * @return string
+     */
+    public static function getOverviewTitle();
+
+    /**
+     * Title displayed above for for creating new content page
+     *
+     * @return string
+     */
+    public static function getCreateNewTitle();
+
+    /**
+     * Title for form displayed for editin content page
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function getEditTitle(Content $content);
+}

app/CMS/Contracts/Content/DisplayPipeline/Pipeline.php

@@ -0,0 +1,16 @@
+<?php
+namespace App\CMS\Contracts\Content\DisplayPipeline;
+
+use App\Models\Content\Content;
+
+interface Pipeline {
+    /**
+     * Add new process into pipeline
+     *
+     * @param string $process
+     *
+     * @return void
+     */
+    function add($process);
+    function run(Content $page);
+}

app/CMS/Contracts/Content/DisplayPipeline/Process.php

@@ -0,0 +1,15 @@
+<?php
+namespace App\CMS\Contracts\Content\DisplayPipeline;
+
+use App\Models\Content\Content;
+
+interface Process {
+    /**
+     * Process and modify given page
+     *
+     * @param Content $page
+     *
+     * @return mixed
+     */
+    function handle(Content & $page);
+}

app/CMS/Contracts/Content/HistoryHandler.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Handlers\Contracts;
+namespace App\CMS\Handlers\Contracts;
 
 interface HistoryHandler
 {

app/CMS/Contracts/Content/SavePipeline/Pipeline.php

@@ -0,0 +1,25 @@
+<?php
+namespace App\CMS\Contracts\Content\SavePipeline;
+
+use App\Models\Content\Content;
+
+interface Pipeline {
+    /**
+     * Add new process into pipeline
+     *
+     * @param string $process
+     *
+     * @return void
+     */
+    function add($process);
+
+    /**
+     * Save content page
+     *
+     * @param Content $page
+     * @param array   $input
+     *
+     * @return Content
+     */
+    function run(Content & $page, array $input);
+}

app/CMS/Contracts/Content/SavePipeline/Process.php

@@ -0,0 +1,16 @@
+<?php
+namespace App\CMS\Contracts\Content\SavePipeline;
+
+use App\Models\Content\Content;
+
+interface Process {
+    /**
+     * Process and modify given page
+     *
+     * @param Content $page
+     * @param array   $input
+     *
+     * @return mixed
+     */
+    function handle(Content & $page, array & $input);
+}

app/CMS/Contracts/Interaction.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Contracts;
+
+interface Interaction {
+    /**
+     * Perform given action
+     *
+     * @param $data array input data
+     * @param $parameters array parameters
+     *
+     * @return mixed
+     */
+    public function handle($data, $parameters);
+
+    /**
+     * @param $data array input data
+     *
+     * @return array
+     */
+    public function getValidationRules($data = []);
+}

app/CMS/Contracts/Modules/AppHandler.php

@@ -0,0 +1,42 @@
+<?php
+namespace App\CMS\Contracts\Modules;
+
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+
+interface AppHandler extends BaseModuleHandler
+{
+    public static function getHistoryHandler();
+
+    /**
+     * Getter for section names in creating/editing content resource
+     *
+     * @return mixed
+     */
+    public static function getExtendedFormSections();
+
+    /**
+     * Getter for views used in extended part of form for creating new content
+     *
+     * This method should return pairs <section, view-name>. View is returned only as name in plain text
+     *
+     * @return array of views/templates/html codes divided into section
+     */
+    public static function getExtendedFormInputsCreate();
+
+    /**
+     * Getter for extended part of form for editing existing content
+     *
+     * Basically, this method may be
+     *
+     * @return array of views/templates/html codes divided into section
+     */
+    public static function getExtendedFormInputsEdit();
+
+    /**
+     * Does this module support categories?
+     *
+     * @return boolean
+     */
+    public static function supportCategories();
+}

app/CMS/Contracts/Modules/BaseModuleHandler.php

@@ -0,0 +1,18 @@
+<?php
+namespace App\CMS\Contracts\Modules;
+
+use App\Models\User;
+
+interface BaseModuleHandler
+{
+    /**
+     * Register admin menu (or multiple ones)
+     *
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user);
+
+}

app/CMS/Contracts/Modules/InstallableModule.php

@@ -0,0 +1,23 @@
+<?php
+namespace App\CMS\Contracts\Modules;
+
+use App\Models\Module;
+
+interface InstallableModule {
+    /**
+     * Install module.
+     *
+     * This method is called after inserting info about module into database. It can be called only using Artisan in
+     * CLI.
+     */
+    public static function install();
+
+    /**
+     * Uninstalls module
+     *
+     * @param Module $module
+     *
+     * @return mixed
+     */
+    public static function uninstall(Module $module);
+}

app/CMS/Contracts/Modules/TemplateHandler.php

@@ -0,0 +1,30 @@
+<?php
+namespace App\CMS\Contracts\Modules;
+
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+
+/**
+ * Interface TemplateHandler
+ *
+ * Inerface used for registering template into CMS core.
+ *
+ * @package App\CMS\Handlers\Contracts
+ */
+interface TemplateHandler extends BaseModuleHandler
+{
+    /**
+     * Get list of registered templates and supported modules.
+     *
+     * Returned array is expected to be array of arrays with following items: module, namespace and templateName.
+     * Example:
+     * return [
+     *    ['module' => 'Article', 'templateName' => 'article::template.name']
+     * ];
+     *
+     * When no "namespace" is specified, value strtolower(module) is used instaed.
+     *
+     * @return array
+     */
+    public static function getPublicTemplatePaths();
+}

app/CMS/Contracts/Repositories/BaseRepository.php

@@ -0,0 +1,7 @@
+<?php
+namespace App\CMS\Contracts\Repositories;
+
+interface BaseRepository {
+    public function getOne($id = null);
+    public function all();
+}

app/CMS/Contracts/Repositories/Content.php

@@ -0,0 +1,15 @@
+<?php
+namespace App\CMS\Contracts\Repositories;
+
+interface Content extends BaseRepository
+{
+    const STATUS_DRAFT = 'draft';
+    const STATUS_PROTECTED = 'protected';
+    const STATUS_PUBLIC = 'public';
+
+    public function getOverview($handler = null, $statuses = null);
+
+    public function getHomepage();
+
+    public function getByURL($url);
+}

app/CMS/Contracts/Repositories/Module.php

@@ -0,0 +1,20 @@
+<?php
+namespace App\CMS\Contracts\Repositories;
+
+use App\Models\Content\Content as ContentModel;
+use App\Models\Module as ModuleModel;
+
+interface Module extends BaseRepository
+{
+    public function getCreateContentTitle(ModuleModel $module);
+
+    public function getUpdateContentTitle(ModuleModel $module, ContentModel $content = null);
+
+    public function getOverviewTitle(ModuleModel $module);
+
+    public function getByHandler($handler);
+
+    public function call(ModuleModel $module, $method, $parameters = []);
+
+    public function callOnString($moduleHandler, $method, $parameters = []);
+}

app/CMS/Contracts/Repositories/Template.php

@@ -0,0 +1,21 @@
+<?php
+namespace App\CMS\Contracts\Repositories;
+
+use App\Models\Module as ModuleModel;
+use App\Models\Templates\Template as TemplateModel;
+
+interface Template
+{
+    const EDITED_TEMPLATES_DIRECTORY = 'custom';
+    const ASSETS_DIRECTORY = 'assets';
+    const MODULES_DIRECTORY = 'modules';
+    const TEMPLATE_SUFFIX = '.blade.php';
+    const CUSTOM_EDIT_DIRECTORY = 1;
+    const ORIGINAL_DIRECTORY = 2;
+
+    public function setModel(TemplateModel $model);
+
+    public function getPathToTemplate($mode = null);
+
+    public function getForModule(ModuleModel $module);
+}

app/CMS/Contracts/Search/SearchHandler.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Handlers\Contracts;
+namespace App\CMS\Handlers\Contracts;
 
 interface SearchHandler {
     public function getId();

app/CMS/Contracts/Search/SearchPresenterHandler.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Handlers\Contracts;
+namespace App\CMS\Handlers\Contracts;
 
 interface SearchPresenterHandler
 {

app/CMS/Contracts/Widgets/AdminDashboardWidget.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Widgets\Contracts;
+namespace App\CMS\Contracts\Widgets;
 
 interface AdminDashboardWidget extends PublicWidget
 {

app/CMS/Contracts/Widgets/InstallableWidget.php

@@ -0,0 +1,17 @@
+<?php
+namespace App\CMS\Contracts\Widgets;
+
+interface InstallableWidget extends PublicWidget  {
+
+    /**
+     * Function for installing given widget
+     *
+     * @return mixed
+     */
+    public static function install();
+
+    /**
+     * Function for uninstalling widget
+     */
+    public static function uninstall();
+}

app/CMS/Contracts/Widgets/MenuExtensionHandler.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Widgets\Contracts;
+namespace App\CMS\Widgets\Contracts;
 
 interface MenuExtensionHandler {
 

app/CMS/Contracts/Widgets/PublicWidget.php

@@ -1,8 +1,8 @@
 <?php
-namespace App\Widgets\Contracts;
+namespace App\CMS\Contracts\Widgets;
 
 use App\Http\Requests\Request;
-use App\Models\Widget;
+use App\Models\Widgets\Widget;
 
 interface PublicWidget
 {
@@ -28,22 +28,11 @@ interface PublicWidget
     public static function getPresenter();
 
     /**
-     * @param Widget  $widget
+     * Get widget settings for saving into database
-     * @param \stdClass $data
      *
-     * @return mixed
+     * @param Request $request
-     */
-    public static function save(Widget $widget, \stdClass $data);
-
-    /**
-     * Function for installing given widget
      *
-     * @return mixed
+     * @return array
      */
-    public static function install();
+    public static function save(Request $request);
-
-    /**
-     * Function for uninstalling widget
-     */
-    public static function uninstall();
 }

app/CMS/Contracts/Widgets/WidgetRenderer.php

@@ -1,8 +1,8 @@
 <?php
-namespace App\Widgets\Contracts;
+namespace App\CMS\Contracts\Widgets;
 
-use App\Models\Widget;
+use App\Models\Widgets\Widget;
-use App\Models\WidgetType;
+use App\Models\Widgets\WidgetType;
 
 interface WidgetRenderer
 {
@@ -11,11 +11,11 @@ interface WidgetRenderer
      *
      * This method renders some HTML code for displaying.
      *
-     * @param object $settings
+     * @param Widget $settings
      *
      * @return mixed
      */
-    public static function render($settings);
+    public static function render(Widget $settings);
 
     /**
      * Display form for creating new instance of widget

app/CMS/Enumerations/ActionLogTypes.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\ActionLogType;
 

app/CMS/Enumerations/ActionLogTypesForLogger.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\ActionLogType;
+use App\Models\ActionLog\ActionLogType;
 
 class ActionLogTypesForLogger extends BaseEnumeration
 {

app/CMS/Enumerations/BaseEnumeration.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Enumerations\Exceptions\EnumerationExistsException;
+use App\CMS\Exceptions\Enumerations\EnumerationExistsException;
 
 abstract class BaseEnumeration
 {
@@ -47,7 +47,7 @@ abstract class BaseEnumeration
     public static function push($key, $translation, $overwrite = false)
     {
         // item exists and we do not want to overwrite items
-        if (!$overwrite && isset(self::$items[get_called_class()][$key])) {
+        if (!$overwrite && !is_null($key) && isset(self::$items[get_called_class()][$key])) {
             throw new EnumerationExistsException(get_called_class() . ': ' . $key . ' already in ' . $translation);
         }
 

app/CMS/Enumerations/ContentStatuses.php

@@ -1,7 +1,8 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\Content;
+
+use App\CMS\Contracts\Repositories\Content;
 
 class ContentStatuses extends BaseEnumeration
 {
@@ -9,7 +10,6 @@ class ContentStatuses extends BaseEnumeration
     {
         $roles = [
             Content::STATUS_DRAFT     => 'admin/contents.status_' . Content::STATUS_DRAFT,
-            Content::STATUS_DELETED   => 'admin/contents.status_' . Content::STATUS_DELETED,
             Content::STATUS_PROTECTED => 'admin/contents.status_' . Content::STATUS_PROTECTED,
             Content::STATUS_PUBLIC    => 'admin/contents.status_' . Content::STATUS_PUBLIC
         ];

app/CMS/Enumerations/ModuleNamesWithIds.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\Module;
 

app/CMS/Enumerations/Modules.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\Module;
 

app/CMS/Enumerations/ModulesHandlerToId.php

@@ -1,7 +1,8 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\Module;
+use Illuminate\Support\Facades\Cache;
 
 class ModulesHandlerToId extends BaseEnumeration
 {
@@ -12,7 +13,9 @@ class ModulesHandlerToId extends BaseEnumeration
      */
     protected static function init()
     {
-        $modules = Module::all(['handler', 'id']);
+        $modules = Cache::rememberForever('module-handler-to-id-enumeration', function () {
+            return Module::all(['handler', 'id']);
+        });
 
         foreach ($modules as $module) {
             self::push($module->handler, $module->id);

app/CMS/Enumerations/TemplatePaths.php

@@ -6,9 +6,9 @@
  * Time: 10:33
  */
 
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\TemplatePath;
+use App\Models\Templates\TemplatePath;
 
 class TemplatePaths extends BaseEnumeration
 {

app/CMS/Enumerations/TemplatePathsHumanReadable.php

@@ -6,9 +6,9 @@
  * Time: 10:33
  */
 
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\TemplatePath;
+use App\Models\Templates\TemplatePath;
 
 class TemplatePathsHumanReadable extends BaseEnumeration
 {

app/CMS/Enumerations/TemplatePathsHumanReadableRootOnly.php

@@ -6,9 +6,9 @@
  * Time: 10:33
  */
 
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\TemplatePath;
+use App\Models\Templates\TemplatePath;
 
 class TemplatePathsHumanReadableRootOnly extends BaseEnumeration
 {

app/CMS/Enumerations/Templates.php

@@ -6,9 +6,9 @@
  * Time: 15:50
  */
 
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\Template;
+use App\Models\Templates\Template;
 
 class Templates extends BaseEnumeration
 {

app/CMS/Enumerations/UserRoles.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\User;
 
@@ -9,7 +9,7 @@ class UserRoles extends BaseEnumeration
     {
         $roles = [
             User::ROLE_ADMIN   => 'admin/userManagement.role_' . User::ROLE_ADMIN,
-            User::ROLE_EDITOR  => 'admin/userManagement.role_' . User::ROLE_EDITOR,
+//            User::ROLE_EDITOR  => 'admin/userManagement.role_' . User::ROLE_EDITOR,
             User::ROLE_VISITOR => 'admin/userManagement.role_' . User::ROLE_VISITOR
         ];
 

app/CMS/Enumerations/UserStates.php

@@ -6,7 +6,7 @@
  * Time: 23:20
  */
 
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
 use App\Models\User;
 
@@ -15,7 +15,6 @@ class UserStates extends BaseEnumeration
     public static function init()
     {
         $items = [
-            User::STATE_DELETED => 'admin/userManagement.status_' . User::STATE_DELETED,
             User::STATE_BLOCKED => 'admin/userManagement.status_' . User::STATE_BLOCKED,
             User::STATE_ACTIVE  => 'admin/userManagement.status_' . User::STATE_ACTIVE
         ];

app/CMS/Enumerations/WidgetTypes.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\WidgetType;
+use App\Models\Widgets\WidgetType;
 
 class WidgetTypes extends BaseEnumeration
 {

app/CMS/Enumerations/WidgetTypesWithHandlers.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Enumerations;
+namespace App\CMS\Enumerations;
 
-use App\Models\WidgetType;
+use App\Models\Widgets\WidgetType;
 
 class WidgetTypesWithHandlers extends BaseEnumeration
 {

app/CMS/Exceptions/Enumerations/EnumerationExistsException.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Enumerations\Exceptions;
+namespace App\CMS\Exceptions\Enumerations;
 
 class EnumerationExistsException extends \Exception {
 

app/CMS/Exceptions/FileManager/SubdirectoryExistsInDirectory.php

@@ -0,0 +1,6 @@
+<?php
+namespace App\CMS\Exceptions\FileManager;
+
+class SubdirectoryExistsInDirectory extends \Exception
+{
+}

app/CMS/Exceptions/Validation/ValidationFailedException.php

@@ -0,0 +1,19 @@
+<?php
+namespace App\CMS\Exceptions\Validation;
+
+use Exception;
+
+class ValidationFailedException extends \Exception {
+    protected $validator;
+
+    public function __construct($validator, $message = null, $code = null, Exception $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+
+        $this->validator = $validator;
+    }
+
+    public function getValidator(){
+        return $this->validator;
+    }
+}

app/CMS/Exceptions/Widgets/MissingParameterException.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Widgets\Exceptions;
+namespace App\CMS\Widgets\Exceptions;
 
 use Exception;
 

app/CMS/Exceptions/Widgets/WidgetExistsException.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Widgets\Exceptions;
+namespace App\CMS\Widgets\Exceptions;
 
 use Exception;
 

app/CMS/Handlers/AdminHandler.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace App\CMS\Handlers;
+
+use App\CMS\Contracts\Modules\AppHandler;
+use App\Models\FileManager\File;
+
+/**
+ * Class Handler
+ * Handler is a class which handles module-specific behaviour which cannot be done by module itself, resp. cannot be
+ * done by some abstract magic.
+ * @package App\CMS\Handlers\
+ */
+abstract class AdminHandler extends BaseHandler implements AppHandler
+{
+    public static function getHistoryHandler()
+    {
+        return History::class;
+    }
+
+    public static function getExtendedFormSections()
+    {
+        $formParts = [
+            'basicInfo'   => trans('admin/contents.basicInfo'),
+            'meta'        => trans('admin/contents.metaOptions'),
+            'publication' => trans('admin/contents.publicationOptions'),
+            'appearance'  => trans('admin/contents.appearance'),
+            'files'       => trans('admin/contents.files')
+        ];
+
+        if (\Auth::user()->cannot('upload', File::class)) {
+            unset($formParts['files']);
+        }
+
+        return $formParts;
+    }
+
+    public static function getExtendedFormInputsCreate()
+    {
+        $formParts = [
+            'basicInfo'   => 'admin.content.formParts.basicInformation',
+            'meta'        => 'admin.content.formParts.metaInformation',
+            'publication' => 'admin.content.formParts.publicationSetup',
+            'appearance'  => 'admin.content.formParts.appearance',
+            'files'       => 'admin.content.formParts.files'
+        ];
+
+        if (\Auth::user()->cannot('upload', File::class)) {
+            unset($formParts['files']);
+        }
+
+        return $formParts;
+    }
+
+    public static function getExtendedFormInputsEdit()
+    {
+        return self::getExtendedFormInputsCreate();
+    }
+}

app/CMS/Handlers/BaseHandler.php

@@ -0,0 +1,142 @@
+<?php
+
+namespace App\CMS\Handlers;
+
+use App\CMS\Contracts\Modules\BaseModuleHandler;
+use App\CMS\Enumerations\TemplatePathsHumanReadableRootOnly;
+use App\CMS\Enumerations\WidgetTypes;
+use App\CMS\Repositories\Module;
+use App\Models\ActionLog\ActionLog;
+use App\Models\Content\Content;
+use App\Models\FileManager\File;
+use App\Models\Settings;
+use App\Models\Templates\Template;
+use App\Models\User;
+use App\Models\Widgets\Widget;
+use App\Models\Widgets\WidgetArea;
+
+abstract class BaseHandler implements BaseModuleHandler
+{
+    /**
+     * Register admin menu (or multiple ones)
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user)
+    {
+        $menu = \Menu::instance('mainMenu');
+        if (!is_null($menu)) {
+            // menus were already defined
+            return;
+        }
+
+        // create instance of main menu
+        \Menu::create('mainMenu', function ($menu) use ($user) {
+            //            $menu->route('admin.dashboard', trans('admin/mainMenu.dashboard'), [], 10, ['icon' => 'fa fa-fw fa-dashboard']);
+
+            /**
+             * Content pages
+             * Submenus can be registered later
+             */
+            $contentModules = app(Module::class)->getContentModules();
+
+            if ($user->can('manage', Content::class) && !$contentModules->isEmpty()) {
+                $menu->dropdown(trans('admin/mainMenu.contentPages'), function ($sub) {
+                    $sub->route('content.overview', trans('admin/mainMenu.contentPageOverview'), [], 10000, ['icon' => 'fa fa-fw fa-list']);
+                }, 20, ['icon' => 'fa fa-fw fa-database']);
+            }
+
+            /**
+             * File manager
+             */
+            if ($user->can('manage', File::class)) {
+                $menu->route('upload.overview', trans('admin/mainMenu.fileManager'), [], 40, ['icon' => 'fa fa-fw fa-folder']);
+            }
+
+            /**
+             * Widgets and widget areas
+             */
+            if ($user->can('manage', Widget::class) || $user->can('manage', WidgetArea::class)) {
+                $menu->dropdown(trans('admin/mainMenu.widgets'), function ($sub) use ($user) {
+                    // create list of all widget types
+                    $widgets = WidgetTypes::getWithTranslations();
+
+                    if (!empty($widgets) && $user->can('create', Widget::class)) {
+                        $sub->dropdown(trans('admin/mainMenu.newWidget'), function ($sub) use ($widgets) {
+                            $i = 1;
+                            foreach ($widgets as $type => $name) {
+                                $sub->route('widgets.new', $name, ['type' => $type], $i++);
+                            }
+                        }, 10, ['icon' => 'fa fa-fw fa-plus']);
+                    }
+                    if ($user->can('manage', Widget::class)) {
+                        $sub->route('widgets.overview', trans('admin/mainMenu.widgetsOverview'), [], 20, ['icon' => 'fa fa-fw fa-list']);
+                    }
+
+                    // menu for widget areas
+                    if ($user->can('manage', WidgetArea::class)) {
+                        $sub->dropdown(trans('admin/mainMenu.widgetAreas'), function ($sub) use ($user) {
+                            if ($user->can('create', WidgetArea::class)) {
+                                $sub->route('widgetareas.new', trans('admin/mainMenu.newWidgetArea'), [], 1, ['icon' => 'fa fa-fw fa-plus']);
+                            }
+                            $sub->route('widgetareas.overview', trans('admin/mainMenu.widgetAreaOverview'), [], 2, ['icon' => 'fa fa-fw fa-list']);
+                        }, 50, ['icon' => 'fa fa-fw fa-object-group']);
+                    }
+                }, 50, ['icon' => 'fa fa-fw fa-puzzle-piece']);
+            }
+
+            /**
+             * Divide system entries and other links in menu
+             */
+            $menu->addDivider(9999);
+
+            $menu->dropdown(trans('admin/mainMenu.system'), function ($sub) use ($user) {
+
+                /**
+                 * User management
+                 */
+                if ($user->can('manage', User::class)) {
+                    $sub->dropdown(trans('admin/mainMenu.userManagement'), function ($sub) use ($user) {
+                        if ($user->can('create', User::class)) {
+                            $sub->route('users.new', trans('admin/mainMenu.newUser'), [], 10, ['icon' => 'fa fa-fw fa-user-plus']);
+                        }
+                        $sub->route('users.overview', trans('admin/mainMenu.usersOverview'), [], 30, ['icon' => 'fa fa-fw fa-users']);
+                    }, 20, ['icon' => 'fa fa-fw fa-users']);
+                }
+
+                /**
+                 * Templates
+                 */
+                if ($user->can('manage', Template::class)) {
+                    $templatePaths = TemplatePathsHumanReadableRootOnly::getWithTranslations();
+                    if (!empty($templatePaths)) {
+                        $sub->dropdown(trans('admin/mainMenu.templates'), function ($sub) use ($templatePaths) {
+                            $i = 1;
+                            foreach ($templatePaths as $id => $name) {
+                                $sub->route('templates.overview', $name, ['id' => $id], $i++);
+                            }
+                        }, 60, ['icon' => 'fa fa-fw fa-file-code-o']);
+                    }
+                }
+
+                if ($user->can('manage', ActionLog::class)) {
+                    $sub->route('log.overview', trans('admin/mainMenu.actionLog'), [], 70, ['icon' => 'fa fa-fw fa-history']);
+                }
+
+                if ($user->can('manage', Settings::class)) {
+                    $sub->route('settings.overview', trans('admin/mainMenu.settings'), [], 80, ['icon' => 'fa fa-fw fa-gear']);
+                    $sub->route('permissions.index', trans('admin/mainMenu.permissions'), [], 90, ['icon' => 'fa fa-fw fa-key']);
+                }
+            }, 10000, ['icon' => 'fa fa-fw fa-gears']);
+        });
+
+        // create menu with user profile
+        \Menu::create('profileMenu', function ($menu) use ($user) {
+            $menu->route('users.detail', trans('admin/userManagement.profile'), ['user' => $user], 10, ['icon' => 'fa fa-fw fa-user icon']);
+            $menu->addDivider(999);
+            $menu->route('logout', trans('admin/common.logout'), [], 1000, ['icon' => 'fa fa-fw fa-power-off icon']);
+        });
+    }
+}

app/CMS/Handlers/History.php

@@ -1,9 +1,9 @@
 <?php
-namespace App\Handlers;
+namespace App\CMS\Handlers;
 
-use App\Enumerations\ContentStatuses;
+use App\CMS\Enumerations\ContentStatuses;
-use App\Handlers\Contracts\HistoryHandler;
+use App\CMS\Handlers\Contracts\HistoryHandler;
-use App\Helpers\Differ;
+use App\CMS\Helpers\Differ;
 
 class History implements HistoryHandler
 {
@@ -25,6 +25,15 @@ class History implements HistoryHandler
                 break;
             case 'metaDescription':
                 return Differ::htmlDiff($changeset->old_value, $changeset->new_value);
+                break;
+            case 'file':
+                if (!$changeset->old_value) {
+                    // old value is null -> new file was uploaded
+                    return trans('admin/history.uploadedFile', ['file' => $changeset->new_value]);
+                } else {
+                    return trans('admin/history.deletedFile', ['file' => $changeset->old_value]);
+                }
+
                 break;
             case 'status':
                 $statuses = ContentStatuses::getWithTranslations();
@@ -34,7 +43,7 @@ class History implements HistoryHandler
                     'to'   => $statuses[$changeset->new_value]
                 ]);
                 break;
-            case 'is_homepage':
+            case 'isHomepage':
                 return trans('admin/history.setupAsHomepage');
                 break;
             default:

app/CMS/Handlers/Interaction.php

@@ -0,0 +1,39 @@
+<?php
+namespace App\Cms\Handlers\Interactions;
+
+use App\CMS\Contracts\Interaction as InteractionContract;
+use App\CMS\Exceptions\Validation\ValidationFailedException;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Validator;
+
+class Interaction
+{
+    /**
+     * Handle interaction with application
+     *
+     * @param string $interactionClass
+     * @param array  $data
+     * @param array  $extraParameters
+     *
+     * @return mixed
+     * @throws ValidationFailedException
+     */
+    public static function handle($interactionClass, $data, ...$extraParameters)
+    {
+        /**
+         * @var $interaction InteractionContract
+         */
+
+        $interaction = app($interactionClass);
+        // validate interaction
+        $validator = Validator::make($data, $interaction->getValidationRules($extraParameters));
+
+        if ($validator->fails()) {
+            throw new ValidationFailedException($validator);
+        }
+
+        // handle it
+
+        return $interaction->handle($data, $extraParameters);
+    }
+}

app/CMS/Handlers/Registrators/Items/SettingExtension.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Handlers\Registrators\Items;
+namespace App\CMS\Handlers\Registrators\Items;
 
 class SettingExtension
 {

app/CMS/Handlers/Registrators/MenuExtensionRegistrator.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Handlers\Registrators;
+namespace App\CMS\Handlers\Registrators;
 
-use App\Widgets\Contracts\MenuExtensionHandler;
+use App\CMS\Widgets\Contracts\MenuExtensionHandler;
 
 class MenuExtensionRegistrator {
 

app/CMS/Handlers/Registrators/SearchEngineRegistrator.php

@@ -1,10 +1,10 @@
 <?php
-namespace App\Handlers\Registrators;
+namespace App\CMS\Handlers\Registrators;
 
-use App\Enumerations\Exceptions\EnumerationExistsException;
+use App\CMS\Exceptions\Enumerations\EnumerationExistsException;
-use App\Handlers\Contracts\SearchHandler;
+use App\CMS\Handlers\Contracts\SearchHandler;
-use App\Handlers\Contracts\SearchPresenterHandler;
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
-use App\Handlers\Registrators\Items\SearchEngine;
+use App\CMS\Handlers\Registrators\Items\SearchEngine;
 use Symfony\Component\Process\Exception\InvalidArgumentException;
 
 class SearchEngineRegistrator

app/CMS/Handlers/Registrators/SettingsExtensionRegistrator.php

@@ -1,8 +1,8 @@
 <?php
-namespace App\Handlers\Registrators;
+namespace App\CMS\Handlers\Registrators;
 
-use App\Enumerations\Exceptions\EnumerationExistsException;
+use App\CMS\Enumerations\Exceptions\EnumerationExistsException;
-use App\Handlers\Registrators\Items\SettingExtension;
+use App\CMS\Handlers\Registrators\Items\SettingExtension;
 
 class SettingsExtensionRegistrator
 {

app/CMS/Handlers/Registrators/TemplateRegistrator.php

@@ -1,10 +1,11 @@
 <?php
-namespace App\Handlers\Registrators;
+namespace App\CMS\Handlers\Registrators;
 
-use App\Enumerations\TemplatePaths;
+use App\CMS\Contracts\Repositories\Template;
-use App\Enumerations\Templates;
+use App\CMS\Enumerations\TemplatePaths;
-use App\Models\Template;
+use App\CMS\Enumerations\Templates;
-use App\Models\TemplatePath;
+use App\Models\Templates\Template as TemplateModel;
+use App\Models\Templates\TemplatePath;
 use Illuminate\Support\Facades\File;
 use Illuminate\Support\Str;
 use Symfony\Component\Process\Exception\InvalidArgumentException;
@@ -28,6 +29,10 @@ class TemplateRegistrator
      * @var int ID of module
      */
     protected $moduleId;
+    /**
+     * @var array list of all registered template paths
+     */
+    protected $paths = [];
 
     /**
      * Set base path
@@ -64,7 +69,7 @@ class TemplateRegistrator
      */
     public function setNamespace($namespace)
     {
-        $this->namespace = $namespace . '::';
+        $this->namespace = $namespace;
     }
 
     /**
@@ -73,28 +78,52 @@ class TemplateRegistrator
     public function unsetNamespace()
     {
         $this->namespace = null;
+        $this->setModuleId(null);
     }
 
     /**
      * Registers new template path.
      * This method registeres given path itself with all subdirectories
      *
+     * @param        $baseDirectory
      * @param string $path path relatively to root of the project
      * @param string $name human readable identification of given template path
      *
      * @throws \Exception
      */
-    public function register($path, $name)
+    public function register($baseDirectory, $path, $name)
     {
-        // check if base directory was set
+        $this->paths[] = [
-        if (!$this->baseDirectory || !is_dir($this->baseDirectory)) {
+            'namespace'     => $this->namespace,
-            throw new \Exception('Set $baseDirectory before registering template path.');
+            'moduleId'      => $this->moduleId,
+            'baseDirectory' => $baseDirectory,
+            'path'          => $this->baseDirectory . DIRECTORY_SEPARATOR . $path,
+            'name'          => $name
+        ];
+        $this->unsetNamespace();
+    }
+
+    /**
+     * Save templates into database
+     */
+    public function saveTemplates()
+    {
+        if (!is_array($this->paths) || empty($this->paths)) {
+            return;
         }
 
-        $this->registeredPath = $this->baseDirectory . DIRECTORY_SEPARATOR . $path;
+        foreach ($this->paths as $path) {
+            if (!empty($path['namespace'])) {
+                $this->setNamespace($path['namespace'] . '::');
+            }
+            $this->setModuleId($path['moduleId']);
+            $this->setBaseDirectory($path['baseDirectory']);
 
-        // register path
+            $this->registeredPath = $this->baseDirectory . DIRECTORY_SEPARATOR . $path['path'];
-        $this->registerPath($this->registeredPath, $name);
+            // register path
+            $this->registerPath($this->registeredPath, $path['name']);
+            $this->unsetNamespace();
+        }
     }
 
     /**
@@ -106,7 +135,10 @@ class TemplateRegistrator
      */
     protected function relativePath($directory)
     {
-        return trim(str_replace(base_path(), '', $directory), '/');
+        $directory = str_replace('/', DIRECTORY_SEPARATOR, $directory);
+        $directory = str_replace('\\', DIRECTORY_SEPARATOR, $directory);
+
+        return trim(str_replace(base_path(), '', $directory), '\\/');
     }
 
     /**
@@ -117,6 +149,10 @@ class TemplateRegistrator
      */
     protected function scanForSubdirectories($directory, $name)
     {
+        if (!is_dir($directory)) {
+            return;
+        }
+
         $directories = File::directories($directory);
 
         foreach ($directories as $dir) {
@@ -166,7 +202,7 @@ class TemplateRegistrator
      * @param $path
      * @param $templatePathId
      *
-     * @throws \App\Enumerations\Exceptions\EnumerationExistsException
+     * @throws \App\CMS\Enumerations\Exceptions\EnumerationExistsException
      */
     protected function registerTemplates($path, $templatePathId)
     {
@@ -184,7 +220,6 @@ class TemplateRegistrator
             $registeredTemplates = Templates::getWithTranslations();
 
             if (!in_array($templateName, $registeredTemplates)) {
-
                 $params = [
                     'template_name' => $templateName,
                     'name'          => $templateName,
@@ -195,7 +230,7 @@ class TemplateRegistrator
                 ];
 
                 // save template into database
-                $newTemplate = Template::create($params);
+                $newTemplate = TemplateModel::create($params);
 
                 // push template into enumeration - so it will not be registered again
                 Templates::push($newTemplate->id, $templateName);
@@ -211,7 +246,7 @@ class TemplateRegistrator
      * @param null $parent
      *
      * @return mixed|null
-     * @throws \App\Enumerations\Exceptions\EnumerationExistsException
+     * @throws \App\CMS\Enumerations\Exceptions\EnumerationExistsException
      */
     protected function saveTemplatePath($path, $name, $parent = null)
     {
@@ -268,12 +303,17 @@ class TemplateRegistrator
      *
      * @return string
      */
-    private function getTemplateName($template)
+    protected function getTemplateName($template)
     {
-        $templateName = str_replace($this->registeredPath . DIRECTORY_SEPARATOR, '', $template);
+        $templateName = $template;
+
+        $templateName = str_replace($this->registeredPath, '', $templateName);
+        $templateName = str_replace('\\', DIRECTORY_SEPARATOR, $templateName);
+        $templateName = str_replace('/', DIRECTORY_SEPARATOR, $templateName);
         $templateName = str_replace(DIRECTORY_SEPARATOR, '.', $templateName);
         $templateName = str_replace(Template::TEMPLATE_SUFFIX, '', $templateName);
+        $templateName = preg_replace('/\.{2,}/', '.', $templateName);
 
-        return $this->namespace . $templateName;
+        return $this->namespace . trim($templateName, '.');
     }
 }

app/CMS/Handlers/Registrators/WidgetRegistrator.php

@@ -0,0 +1,59 @@
+<?php
+namespace App\CMS\Handlers\Registrators;
+
+use App\CMS\Enumerations\WidgetTypesWithHandlers;
+use App\Models\Widgets\WidgetType;
+
+class WidgetRegistrator
+{
+    protected $registeredWidgets = [];
+
+    /**
+     * Method used for registering new widgets
+     *
+     * @param      $classname
+     * @param null $templateId
+     * @param null $moduleId
+     */
+    public function register($classname, $templateId = null, $moduleId = null)
+    {
+        $this->registeredWidgets[] = [
+            'class'      => $classname,
+            'templateId' => $templateId,
+            'moduleId'   => $moduleId
+        ];
+    }
+
+    /**
+     * Install all non-installed widgets
+     */
+    public function installWidgets()
+    {
+        $installed = WidgetTypesWithHandlers::getSimple();
+        foreach ($this->registeredWidgets as $registeredWidget) {
+            $classname = $registeredWidget['class'];
+            $templateId = $registeredWidget['templateId'];
+            $moduleId = $registeredWidget['moduleId'];
+
+            // register widget as new widget type
+            if (!in_array($classname, $installed)) {
+                $widgetName = call_user_func($classname . '::getName');
+                $widgetDescription = call_user_func($classname . '::getDescription');
+
+                // create row in widget types
+                WidgetType::create([
+                                       'handler'     => $classname,
+                                       'name'        => $widgetName,
+                                       'module_id'   => $moduleId,
+                                       'template_id' => $templateId,
+                                       'description' => $widgetDescription
+                                   ]);
+
+                // install widget (if neccessary)
+                if (is_callable([$classname, 'install'])) {
+                    call_user_func($classname . '::install');
+                }
+            }
+        }
+    }
+}

app/CMS/Handlers/Search/Content.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\CMS\Handlers\Search;
+
+use App\Models\Content\Content as ContentModel;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Auth;
+
+class Content extends Search
+{
+    /**
+     * Search for given patttern/term
+     *
+     * @param string $term searched word
+     *
+     * @return array|\Illuminate\Database\Eloquent\Collection|Collection|static[]
+     */
+    public function search($term)
+    {
+        if (Auth::user()
+                ->cannot('manage', ContentModel::class)) {
+            return new Collection();
+        }
+
+        $token = $this->tokenize($term);
+
+        return ContentModel::where('pageContent', 'LIKE', $token)
+                           ->orWhere('metaDescription', 'LIKE', $token)
+                           ->orWhere('metaKeywords', 'LIKE', $token)
+                           ->orWhere('title', 'LIKE', $token)
+                           ->orWhere('url', 'LIKE', $token)
+                           ->get();
+    }
+
+    public function getId()
+    {
+        return 'content';
+    }
+
+    public function getName()
+    {
+        return trans('search.content');
+    }
+}

app/CMS/Handlers/Search/Files.php

@@ -1,7 +1,9 @@
 <?php
-namespace App\Handlers\Search;
 
-use App\Models\File;
+namespace App\CMS\Handlers\Search;
+
+use App\Models\FileManager\File;
+use Illuminate\Support\Collection;
 
 class Files extends Search
 {
@@ -24,9 +26,15 @@ class Files extends Search
      */
     public function search($term)
     {
+        if (\Auth::user()
+                 ->cannot('manage', File::class)) {
+            return new Collection();
+        }
+
         $token = $this->tokenize($term);
 
         return File::where('original_filename', 'LIKE', $token)
+                   ->orWhere('name', 'LIKE', $token)
                    ->orWhere('keywords', 'LIKE', $token)
                    ->orWhere('description', 'LIKE', $token)
                    ->orWhere('mime_type', 'LIKE', $token)

app/CMS/Handlers/Search/Presenters/AdminContent.php

@@ -0,0 +1,22 @@
+<?php
+namespace App\CMS\Handlers\Search\Presenters;
+
+use App\CMS\Enumerations\ContentStatuses;
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
+use App\Models\Content\Content;
+
+class AdminContent implements SearchPresenterHandler
+{
+    public function render($foundItems)
+    {
+        if (\Auth::user()
+                ->cannot('manage', Content::class)) {
+            return null;
+        }
+
+        return view('admin.search.results.content', [
+            'pages'    => $foundItems,
+            'statuses' => ContentStatuses::getWithTranslations(),
+        ]);
+    }
+}

app/CMS/Handlers/Search/Presenters/AdminFiles.php

@@ -1,7 +1,8 @@
 <?php
-namespace App\Handlers\Search\Presenters;
+namespace App\CMS\Handlers\Search\Presenters;
 
-use App\Handlers\Contracts\SearchPresenterHandler;
+use App\CMS\Handlers\Contracts\SearchPresenterHandler;
+use App\Models\FileManager\File;
 
 class AdminFiles implements SearchPresenterHandler
 {
@@ -14,6 +15,11 @@ class AdminFiles implements SearchPresenterHandler
      */
     public function render($foundItems)
     {
-        return view('admin.fileManager.filesTiles', ['files' => $foundItems]);
+        if (\Auth::user()
+                 ->cannot('manage', File::class)) {
+            return null;
+        }
+
+        return view('admin.fileManager.filesTiles', ['files' => $foundItems, 'hideDelete' => true]);
     }
 }

app/CMS/Handlers/Search/Search.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Handlers\Search;
+namespace App\CMS\Handlers\Search;
 
-use App\Handlers\Contracts\SearchHandler;
+use App\CMS\Handlers\Contracts\SearchHandler;
 use Symfony\Component\Process\Exception\InvalidArgumentException;
 
 abstract class Search implements SearchHandler

app/CMS/Helpers/CurrentTemplate.php

@@ -0,0 +1,92 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\CMS\Contracts\Modules\TemplateHandler;
+use App\Models\Content\Content;
+use App\Models\Module;
+use App\Models\User;
+use Illuminate\Database\QueryException;
+use Illuminate\Support\Facades\Cache;
+
+class CurrentTemplate implements TemplateHandler
+{
+    protected static $template;
+    protected static $initialized = false;
+
+    /**
+     * Getter for currently set template
+     * @return Module
+     * @throws \ErrorException
+     */
+    public static function get()
+    {
+        if (!self::$initialized) {
+                self::$template = Cache::rememberForever('current-template', function () {
+                    return Module::where('is_template', true)
+                          ->where('enabled', true)
+                          ->first();
+                });
+
+
+            self::$initialized = true;
+        }
+
+        return self::$template;
+    }
+
+    /**
+     * Shortcut for getting template handler
+     *
+     * @return string
+     * @throws \ErrorException
+     */
+    public static function handler()
+    {
+        $template = self::get();
+
+        if (!$template) {
+            throw new \ErrorException('No template selected, no handler available!');
+        }
+
+        return $template->handler;
+    }
+
+    /**
+     * Reset currently set template and load another one on next call of get() method.
+     */
+    public static function reset()
+    {
+        self::$initialized = false;
+    }
+
+    /**
+     * Register admin menu (or multiple ones)
+     *
+     * This cannot be in ServiceProvider because Session is started at middleware. And ServiceProvider is called before
+     * starting any middleware..
+     *
+     * @param User $user model of logged user
+     */
+    public static function registerAdminMenu(User $user)
+    {
+        call_user_func_array([self::handler(), 'registerAdminMenu'], [$user]);
+    }
+
+    /**
+     * Get list of registered templates and supported modules.
+     *
+     * Returned array is expected to be array of arrays with following items: module, namespace and templateName.
+     * Example:
+     * return [
+     *    ['module' => 'Article', 'templateName' => 'article::template.name']
+     * ];
+     *
+     * When no "namespace" is specified, value strtolower(module) is used instaed.
+     *
+     * @return array
+     */
+    public static function getPublicTemplatePaths()
+    {
+        return call_user_func([self::handler(), 'getPublicTemplatePaths']);
+    }
+}

app/CMS/Helpers/Date.php

@@ -0,0 +1,64 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Date
+{
+    /**
+     * Print date in configured format
+     *
+     * @param      $datestamp
+     * @param bool $withTime
+     *
+     * @return false|string
+     */
+    public static function date($datestamp, $withTime = true)
+    {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        $format = $withTime ? config('app.datetime_format') : config('app.date_format');
+
+        return date($format, $timestamp);
+    }
+
+    public static function dateFormatted($format, $datestamp)
+    {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        return date($format, $timestamp);
+    }
+
+    public static function monthName($datestamp) {
+        $timestamp = strtotime($datestamp);
+
+        if ($timestamp <= 0) {
+            return '';
+        }
+
+        $months = [
+            trans('common.months.january'),
+            trans('common.months.february'),
+            trans('common.months.march'),
+            trans('common.months.april'),
+            trans('common.months.may'),
+            trans('common.months.june'),
+            trans('common.months.july'),
+            trans('common.months.august'),
+            trans('common.months.semptember'),
+            trans('common.months.october'),
+            trans('common.months.november'),
+            trans('common.months.december'),
+        ];
+
+        $monthNumber = date('n', $timestamp);
+
+        return $months[$monthNumber - 1];
+    }
+}

app/CMS/Helpers/Differ.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\Helpers;
+namespace App\CMS\Helpers;
 
 /*
     Paul's Simple Differ Algorithm v 0.1

app/CMS/Helpers/FileManager.php

@@ -1,7 +1,7 @@
 <?php
-namespace App\Helpers;
+namespace App\CMS\Helpers;
 
-use App\Models\File;
+use App\Models\FileManager\File;
 
 class FileManager
 {
@@ -17,34 +17,42 @@ class FileManager
         switch ($type) {
             case 'image':
 
-                // try to check if file have thumbnail
+               $url = Path::thumbnail($file->filename);
-                if (file_exists(config('app.thumbnail_url') . '/' . $file->filename)) {
-                    $url = config('app.thumbnail_url') . '/' . $file->filename;
-                } else {
-                    $url = config('app.upload_url') . '/' . $file->filename;
-                }
 
                 return '<img src="' . $url . '" alt="' . $file->description . '" />';
                 break;
             case 'text':
-                return '<i class="fa fa-file-text-o"></i>';
+                return self::getIcon($file, 'fa-file-text-o');
                 break;
             case 'application':
                 switch ($subtype) {
                     case 'pdf':
-                        return '<i class="fa fa-file-pdf-o"></i>';
+                        return self::getIcon($file, 'fa-file-pdf-o');
                         break;
                     default:
-                        return '<i class="fa fa-newspaper-o"></i>';
+                        return self::getIcon($file, 'fa-newspaper-o');
                         break;
                 }
                 break;
             default:
-                return '<i class="fa fa-question"></i>';
+                return self::getIcon($file, 'fa-question');
                 break;
         }
     }
 
+    /**
+     * Shortcut for displaying icons
+     *
+     * @param $file
+     * @param $icon
+     *
+     * @return string
+     */
+    protected static function getIcon($file, $icon)
+    {
+        return '<p><i class="fa fa-2x ' . $icon . '"></i><br /><span>' . e(str_limit($file->original_filename, 15)) . '</span></p>';
+    }
+
     /**
      *
      *
@@ -83,7 +91,6 @@ class FileManager
                 return '<img src="' . $url . '" alt="' . $file->description . '" />';
                 break;
             case 'text':
-
                 $string = '<pre><code>';
                 $string .= htmlspecialchars(file_get_contents($path));
                 $string .= '</pre></code>';
@@ -91,15 +98,8 @@ class FileManager
                 return $string;
                 break;
             case 'application':
-                switch ($subtype) {
+                return '<iframe src = "'.asset('resources/assets/admin/js/viewerJs/').'/#'.Path::upload($file->filename).'" style="width: 100%; height: 50em" allowfullscreen webkitallowfullscreen></iframe>';
-                    case 'pdf':
+            break;
-                        return '<i class="fa fa-file-pdf-o"></i>';
-                        break;
-                    default:
-                        return '<i class="fa fa-newspaper-o"></i>';
-                        break;
-                }
-                break;
             default:
                 return self::getPreview($file);
                 break;
@@ -119,19 +119,12 @@ class FileManager
 
         switch ($type) {
             case 'text':
-
+                return [trans('admin/fileManager.encoding') => mb_detect_encoding(file_get_contents($path))];
-                return [
-                    trans('admin/fileManager.encoding') => mb_detect_encoding(file_get_contents($path))
-                ];
                 break;
 
             case 'image':
                 list ($width, $height) = getimagesize($path);
-
+                return [trans('admin/fileManager.resolution') => $height . ' x ' . $width,];
-                return [
-                    trans('admin/fileManager.resolution') => $height . ' x ' . $width,
-                ];
-
                 break;
         }
 

app/CMS/Helpers/Gravatar.php

@@ -0,0 +1,10 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Gravatar
+{
+    public static function img($email, $size = 50)
+    {
+        return "//www.gravatar.com/avatar/" . md5(strtolower(trim($email))) . "?s=" . $size;
+    }
+}

app/CMS/Helpers/PageRenderer.php

@@ -0,0 +1,37 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\CMS\Handlers\Contracts\AppHandler;
+use App\Models\Content\Content;
+use Webwizo\Shortcodes\Facades\Shortcode;
+
+/**
+ * Class PageRenderer
+ *
+ * Simple class for rendering page for visitor
+ *
+ * @package App\CMS\Helpers
+ */
+class PageRenderer
+{
+    /**
+     * Render page
+     *
+     * @param Content $page
+     *
+     * @return mixed
+     */
+    public static function render(Content $page)
+    {
+        // do something template-specific
+        $parameters = call_user_func_array([CurrentTemplate::handler(), 'beforeRender'], [&$page]);
+
+        /**
+         * @var $handler AppHandler
+         */
+        $handler = new $page->moduleHandler;
+
+        // render page
+        return $handler->render($page, $parameters);
+    }
+}

app/CMS/Helpers/Path.php

@@ -1,46 +1,11 @@
 <?php
-namespace App\Helpers;
+namespace App\CMS\Helpers;
 
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Process\Exception\InvalidArgumentException;
 
-class Template
+class Path
 {
-    /**
-     * Getter for real template name
-     *
-     * @param $template
-     *
-     * @return null|string
-     */
-    public static function name($template)
-    {
-        $namespace = null;
-        if (strpos($template, '::')) {
-            list($namespace, $template) = explode('::', $template);
-            $namespace .= '::';
-        }
-
-        $theme = config('app.theme');
-
-        // list of prefixes
-        $prefixes = [$theme . '.custom.', $theme . '.', ''];
-
-        $view = null;
-        foreach ($prefixes as $prefix) {
-            if (view()->exists($namespace . 'visitor.' . $prefix . $template)) {
-                $view = $namespace . 'visitor.' . $prefix . $template;
-                break;
-            }
-        }
-
-        if (is_null($view)) {
-            throw new InvalidArgumentException('Cannot find template for ' . $namespace . $template);
-        }
-
-        return $view;
-    }
-
     /**
      * Get URL to uploaded file
      *
@@ -59,6 +24,25 @@ class Template
         return config('app.upload_url') . '/' . $filename;
     }
 
+    public static function thumbnail($filename)
+    {
+        // try to check if file have thumbnail
+        if (file_exists(config('app.thumbnail_path') . '/' . $filename)) {
+            $url = config('app.thumbnail_url') . '/' . $filename;
+        } else {
+            $url = self::upload($filename);
+        }
+
+        return $url;
+    }
+
+    /**
+     * Get path to given asset
+     *
+     * @param $path
+     *
+     * @return string
+     */
     public static function asset($path)
     {
         if (env('APP_DEBUG')) {

app/CMS/Helpers/RootDirectory.php

@@ -0,0 +1,49 @@
+<?php
+namespace App\CMS\Helpers;
+
+use App\Models\FileManager\Directory;
+use App\Models\FileManager\File;
+
+class RootDirectory
+{
+    protected static $directory;
+
+    /**
+     * Create root directory
+     *
+     * @return Directory
+     */
+    protected static function create()
+    {
+        $directory = new Directory();
+        $directory->name = 'Root';
+        $directory->is_root = true;
+        $directory->save();
+
+        Directory::whereNull('parent_id')
+                 ->where('is_root', false)
+                 ->update(['parent_id' => $directory->id]);
+
+        File::where('directory_id', null)
+            ->update(['directory_id' => $directory->id]);
+
+        return $directory;
+    }
+
+    /**
+     * Get root directory
+     *
+     * @return Directory
+     */
+    public static function get()
+    {
+        self::$directory = Directory::where('is_root', true)
+                                    ->first();
+
+        if (is_null(self::$directory)) {
+            self::$directory = self::create();
+        }
+
+        return self::$directory;
+    }
+}

app/CMS/Helpers/Settings.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace App\CMS\Helpers;
+
+use App\CMS\Repositories\Settings\Settings as SettingsRepository;
+use App\Models\Settings as SettingsModel;
+use Illuminate\Support\Facades\Cache;
+
+/**
+ * Class Settings
+ *
+ * Helper class for easier obtaining system settings
+ *
+ * @package App\CMS\Helpers
+ */
+class Settings
+{
+    /**
+     * @var array List of all used settings
+     */
+    protected static $settings;
+    /**
+     * @var bool Are data already initialized?
+     */
+    protected static $initialized = false;
+
+    /**
+     * Getter for settings determined with key.
+     *
+     * @param string      $key     settings key
+     * @param string|null $default default value, which will be returned when given key does not exist
+     *
+     * @param null        $exists
+     *
+     * @return null|string
+     */
+    public static function get($key, $default = null, & $exists = null)
+    {
+        self::init();
+
+        if (isset(self::$settings->$key)) {
+            $exists = true;
+            self::$initialized = true;
+            return self::$settings->$key;
+        }
+
+        $exists = false;
+        return $default;
+    }
+
+    /**
+     * Shortcut for obtaining settings saved as JSON
+     *
+     * @param $key
+     *
+     * @return mixed
+     */
+    public static function getJson($key)
+    {
+        return json_decode(self::get($key, '{}'));
+    }
+
+    /**
+     * Get all settings
+     *
+     * @return array
+     */
+    public static function all()
+    {
+        self::init();
+
+        return self::$settings;
+    }
+
+    /**
+     * Initialize settings array
+     */
+    private static function init()
+    {
+        if (!self::$initialized) {
+            self::$settings = Cache::remember('settings', config('cache.settingCacheLifetime'), function () {
+                return app(SettingsRepository::class)->getAll();
+            });
+        }
+    }
+}

app/CMS/Helpers/Template.php

@@ -0,0 +1,49 @@
+<?php
+namespace App\CMS\Helpers;
+
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\Process\Exception\InvalidArgumentException;
+
+class Template
+{
+    /**
+     * Getter for real template name
+     *
+     * @param      $template
+     *
+     * @param bool $throwExceptions
+     *
+     * @return null|string
+     */
+    public static function name($template, $throwExceptions = true)
+    {
+        $namespace = null;
+        if (strpos($template, '::')) {
+            list($namespace, $template) = explode('::', $template);
+            $namespace .= '::';
+        }
+
+        // list of prefixes
+        $prefixes = ['custom.', ''];
+
+        $view = null;
+        foreach ($prefixes as $prefix) {
+            if (view()->exists($namespace . 'visitor.' . $prefix . $template)) {
+                $view = $namespace . 'visitor.' . $prefix . $template;
+                break;
+            }
+        }
+
+        if (is_null($view)) {
+            if ($throwExceptions) {
+                throw new InvalidArgumentException('Cannot find template for ' . $namespace . $template);
+            } else {
+                return false;
+            }
+        }
+
+        return $view;
+    }
+
+
+}

app/CMS/Helpers/Traits/Nullable.php

@@ -0,0 +1,33 @@
+<?php
+namespace App\CMS\Helpers\Traits;
+
+use Carbon\Carbon;
+
+/**
+ * Class Nullable
+ *
+ * @package App\CMS\Helpers\Traits
+ */
+trait Nullable {
+    /**
+     * Get null or parsed date
+     *
+     * @param $date
+     *
+     * @return null|string
+     */
+    public function nullableDate($date) {
+        return empty($date) ? null : Carbon::parse($date)->toDateTimeString();
+    }
+
+    /**
+     * Get null or input value
+     *
+     * @param $string
+     *
+     * @return null
+     */
+    public function nullable($string) {
+        return empty($string) ? null : $string;
+    }
+}

app/CMS/Helpers/Widget.php

@@ -0,0 +1,18 @@
+<?php
+namespace App\CMS\Helpers;
+
+class Widget
+{
+    public static function render(\App\Models\Widgets\Widget $widget)
+    {
+        $handler = $widget->widget_type_handler;
+
+        if (is_string($widget->settings)) {
+            $widget->settings = json_decode($widget->settings);
+        }
+
+        $presenter = call_user_func([$handler, 'getPresenter']);
+
+        return call_user_func([$presenter, 'render'], $widget);
+    }
+}

app/CMS/Helpers/WidgetAreas.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\CMS\Helpers;
+
+use App\CMS\Repositories\Widgets\WidgetArea as WidgetAreaRepository;
+use Illuminate\Support\Facades\Cache;
+
+class WidgetAreas
+{
+    /**
+     * @var array list of inicialized widget areas
+     */
+    protected static $widgetAreas = [];
+    protected static $initialized = false;
+
+    protected static function saveRenderedWidgetArea($widgets)
+    {
+        foreach ($widgets as $widget) {
+            if (!isset(self::$widgetAreas[$widget->widget_area_code])) {
+                self::$widgetAreas[$widget->widget_area_code] = '';
+            }
+
+            self::$widgetAreas[$widget->widget_area_code] .= Widget::render($widget);
+        }
+    }
+
+    protected static function loadWidgetArea($uniqueCode)
+    {
+        $widgets = Cache::remember('widget-area-' . $uniqueCode, setting('widgetCacheLifetime', 5), function () use ($uniqueCode) {
+            $widgetArea = app(\App\CMS\Repositories\Widgets\WidgetArea::class);
+
+            return $widgetArea->getWidgets($uniqueCode)
+                              ->get();
+        });
+
+        self::saveRenderedWidgetArea($widgets);
+    }
+
+    protected static function initWidgetAreas()
+    {
+        if (self::$initialized) {
+            return;
+        }
+
+        $widgets = Cache::remember('widgets', setting('widgetCacheLifetime', 5), function () {
+            $widgetArea = app(WidgetAreaRepository::class);
+            return $widgetArea->getWidgets()
+                              ->get();
+        });
+
+        self::saveRenderedWidgetArea($widgets);
+        self::$initialized = true;
+    }
+
+    /**
+     * Renderer for whole widget area.
+     *
+     * @param $uniqueCode
+     *
+     * @return void
+     */
+    public static function render($uniqueCode)
+    {
+        if (!self::$initialized) {
+            self::initWidgetAreas();
+        }
+
+        if (!isset(self::$widgetAreas[$uniqueCode])) {
+            self::loadWidgetArea($uniqueCode);
+        }
+
+        echo isset(self::$widgetAreas[$uniqueCode]) ? self::$widgetAreas[$uniqueCode] : null;
+    }
+
+    /**
+     * Get list of loaded widgets and areas
+     *
+     * @return array
+     */
+    public static function getLoadedWidgets()
+    {
+        return ['areas' => array_keys(self::$widgetAreas)];
+    }
+}

app/CMS/Helpers/functions.php

@@ -0,0 +1,34 @@
+<?php
+/**
+ * Define function for escaping characters.
+ *
+ * This funcion prevents of creating build-in function, which escapes also accents...
+ *
+ * @param $value
+ *
+ * @return string
+ */
+function e($value)
+{
+    return htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
+}
+
+/**
+ * Shortcut for \App\CMS\Helpers\Settings::get()
+ *
+ * @param      $key
+ * @param null $default
+ *
+ * @return null|string
+ */
+function setting($key, $default = null) {
+    return \App\CMS\Helpers\Settings::get($key, $default);
+}
+
+function asset_path($path) {
+    return env('SITE_URL').'/assets/'.$path;
+}
+
+function template_name($name, $throwExceptions = true) {
+    return \App\CMS\Helpers\Template::name($name, $throwExceptions);
+}

app/CMS/Interactions/Admin/Content/ChangeStatus.php

@@ -0,0 +1,38 @@
+<?php
+namespace App\CMS\Interactions\Admin\Content;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Enumerations\ContentStatuses;
+
+class ChangeStatus implements Interaction
+{
+    /**
+     * Change status of content page
+     *
+     * @param array $data
+     * @param array $parameters
+     *
+     * @return mixed|void
+     */
+    public function handle($data, $parameters)
+    {
+        list ($page) = $parameters;
+
+        $page->status = $data['status'];
+        $page->save();
+    }
+
+    /**
+     * Check if status is valid
+     *
+     * @param array $parameters
+     *
+     * @return array
+     */
+    public function getValidationRules($parameters = [])
+    {
+        $statuses = ContentStatuses::getWithTranslations();
+
+        return ['status' => 'in:' . implode(',', array_keys($statuses))];
+    }
+}

app/CMS/Interactions/Admin/Content/DeletePage.php

@@ -0,0 +1,45 @@
+<?php
+namespace App\CMS\Interactions\Admin\Content;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Contracts\Repositories\Module;
+use App\Models\Content\Content;
+use Illuminate\Support\Facades\App;
+
+class DeletePage implements Interaction
+{
+    /**
+     * Perform given action
+     *
+     * @param $data       array input data
+     * @param $parameters array parameters
+     *
+     * @return void
+     */
+    public function handle($data, $parameters)
+    {
+        /**
+         * @var $page   Content
+         * @var $module Module
+         */
+
+        $module = App::make(Module::class);
+        list ($page) = $parameters;
+
+        // delete page
+        $page->delete();
+
+        // let module to delete some extra content created during page's life
+        $module->callOnString($page->moduleHandler, 'delete', [$page]);
+    }
+
+    /**
+     * @param $data array input data
+     *
+     * @return array
+     */
+    public function getValidationRules($data = [])
+    {
+        return [];
+    }
+}

app/CMS/Interactions/Admin/Content/EditContent.php

@@ -0,0 +1,78 @@
+<?php
+namespace App\Cms\Interactions\Admin\Content;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Contracts\Repositories\Module;
+use App\CMS\Enumerations\ContentStatuses;
+use App\CMS\Helpers\CurrentTemplate;
+use App\Events\EditContent as EditContentEvent;
+use App\Http\Requests\Request;
+use App\Models\Content\Content;
+use App\Models\FileManager\File;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Event;
+use Illuminate\Support\Str;
+use Mcamara\LaravelLocalization\Facades\LaravelLocalization;
+
+class EditContent implements Interaction
+{
+    /**
+     * @var Module
+     */
+    protected $module;
+    /**
+     * @var File
+     */
+    protected $file;
+
+    public function __construct()
+    {
+        $this->module = App::make(Module::class);
+        $this->file = App::make(File::class);
+    }
+
+    /**
+     * Edit page
+     *
+     * @param array $data
+     * @param array $parameters
+     *
+     * @return mixed
+     */
+    public function handle($data, $parameters)
+    {
+        /**
+         * @var $page Content
+         */
+        list($page) = $parameters;
+
+        app('saveContentPipeline')->run($page, $data);
+
+        return $page;
+    }
+
+    /**
+     * Validate this interaction
+     *
+     * @param array $parameters
+     *
+     * @return array
+     */
+    public function getValidationRules($parameters = [])
+    {
+        $id = $parameters[0]->id;
+
+        // get all available statuses
+        $statuses = ContentStatuses::getSimple();
+        $statuses = implode(',', $statuses);
+
+        return [
+            'title'         => 'required',
+            'url'           => 'required|unique:contents,url,' . $id.',id,deleted_at,NULL,language,' . LaravelLocalization::getCurrentLocale(),
+            'publishedFrom' => 'date',
+            'publishedTo'   => 'date',
+            'status'        => 'required|in:' . $statuses,
+            'parentPage'    => 'exists:contents,id'
+        ];
+    }
+}

app/CMS/Interactions/Admin/Content/NewContent.php

@@ -0,0 +1,74 @@
+<?php
+namespace App\Cms\Interactions\Admin\Content;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Contracts\Repositories\Content as ContentRepository;
+use App\CMS\Contracts\Repositories\Module;
+use App\CMS\Enumerations\ContentStatuses;
+use App\CMS\Helpers\CurrentTemplate;
+use App\Models\Content\Content;
+use App\Models\FileManager\File;
+use Illuminate\Support\Facades\App;
+use Mcamara\LaravelLocalization\Facades\LaravelLocalization;
+
+class NewContent implements Interaction
+{
+    /**
+     * @var ContentRepository
+     */
+    protected $content;
+    /**
+     * @var File
+     */
+    protected $file;
+    /**
+     * @var Module
+     */
+    protected $module;
+
+    public function __construct()
+    {
+        $this->content = App::make(ContentRepository::class);
+        $this->module = App::make(Module::class);
+        $this->file = App::make(File::class);
+    }
+
+    /**
+     * Create new content page
+     *
+     * @param array   $data
+     * @param         $parameters
+     *
+     * @return Content
+     */
+    public function handle($data, $parameters)
+    {
+        list($moduleHandler) = $parameters;
+
+        $data['userId'] = \Auth::user()->id;
+        $data['language'] = LaravelLocalization::getCurrentLocale();
+        $data['moduleHandler'] = $moduleHandler;
+
+        $page = new Content();
+        app('saveContentPipeline')->run($page, $data);
+
+        return $page;
+    }
+
+    public function getValidationRules($parameters = [])
+    {
+        // get all available statuses
+        $statuses = ContentStatuses::getSimple();
+        $statuses = implode(',', $statuses);
+
+        return [
+            'titlePhoto'    => 'image',
+            'title'         => 'required',
+            'url'           => 'required|unique:contents,url,NULL,id,deleted_at,NULL,language,' . LaravelLocalization::getCurrentLocale(),
+            'status'        => 'required|in:'.$statuses,
+            'parentPage'    => 'exists:contents,id',
+            'publishedFrom' => 'date',
+            'publishedTo'   => 'date',
+        ];
+    }
+}

app/CMS/Interactions/Admin/Content/SetHomepage.php

@@ -0,0 +1,43 @@
+<?php
+namespace App\CMS\Interactions\Admin\Content;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Enumerations\ContentStatuses;
+use App\Models\Content\Content;
+use Mcamara\LaravelLocalization\Facades\LaravelLocalization;
+
+class SetHomepage implements Interaction
+{
+    /**
+     * Set homepage of given page
+     *
+     * @param array $data
+     * @param array $parameters
+     *
+     * @return void
+     */
+    public function handle($data, $parameters)
+    {
+        list ($page) = $parameters;
+        // disable any other existing homepage
+        Content::where('isHomepage', true)
+               ->where('language', LaravelLocalization::getCurrentLocale())
+               ->update(['isHomepage' => false]);
+
+        // set new homepage
+        $page->isHomepage = true;
+        $page->save();
+    }
+
+    /**
+     * Check if status is valid
+     *
+     * @param array $parameters
+     *
+     * @return array
+     */
+    public function getValidationRules($parameters = [])
+    {
+        return [];
+    }
+}

app/CMS/Interactions/Admin/FileManager/CreateDirectory.php

@@ -0,0 +1,56 @@
+<?php
+namespace App\CMS\Interactions\Admin\FileManager;
+
+use App\CMS\Contracts\Interaction;
+use App\CMS\Exceptions\FileManager\SubdirectoryExistsInDirectory;
+use App\CMS\Repositories\FileManager\Directory as DirectoryRepository;
+use App\Models\FileManager\Directory;
+
+class CreateDirectory implements Interaction
+{
+    /**
+     * @var DirectoryRepository
+     */
+    private $repository;
+
+    public function __construct(DirectoryRepository $repository)
+    {
+        $this->repository = $repository;
+    }
+
+    /**
+     * Perform given action
+     *
+     * @param $data       array input data
+     * @param $parameters array parameters
+     *
+     * @return Directory
+     * @throws SubdirectoryExistsInDirectory
+     */
+    public function handle($data, $parameters)
+    {
+        $data['parentDirectory'] = isset($data['parentDirectory']) ? $data['parentDirectory'] : null;
+
+        // check if created folder does not exist in current directory
+        if ($this->repository->checkIfNameExists($data['name'], $data['parentDirectory'])) {
+            throw new SubdirectoryExistsInDirectory();
+        }
+
+        // create new database entry
+        return $this->repository->create($data);
+    }
+
+    /**
+     * @param $data array input data
+     *
+     * @return array
+     * @throws SubdirectoryExistsInDirectory
+     */
+    public function getValidationRules($data = [])
+    {
+        return [
+            'name'            => 'required|max:255',
+            'parentDirectory' => 'exists:directories,id'
+        ];
+    }
+}

app/CMS/MenuPresenters/FoundationDrilldownMenuPresenter.php

@@ -1,8 +1,9 @@
 <?php
-namespace App\MenuPresenters;
 
-use Pingpong\Menus\MenuItem;
+namespace App\CMS\MenuPresenters;
-use Pingpong\Menus\Presenters\Presenter;
+
+use Nwidart\Menus\MenuItem;
+use Nwidart\Menus\Presenters\Presenter;
 
 class FoundationDrilldownMenuPresenter extends Presenter
 {
@@ -77,6 +78,6 @@ class FoundationDrilldownMenuPresenter extends Presenter
                 <ul class="vertical menu">
                   ' . $this->getChildMenuItems($item) . '
                 </ul>
-              </li>' . PHP_EOL;;
+              </li>' . PHP_EOL;
     }
 }

app/CMS/MenuPresenters/FoundationDropdownMenuPresenter.php

@@ -1,7 +1,8 @@
 <?php
-namespace App\MenuPresenters;
 
-use Pingpong\Menus\Presenters\Presenter;
+namespace App\CMS\MenuPresenters;
+
+use Nwidart\Menus\Presenters\Presenter;
 
 class FoundationDropdownMenuPresenter extends Presenter
 {
@@ -27,7 +28,7 @@ class FoundationDropdownMenuPresenter extends Presenter
     public function getMenuWithoutDropdownWrapper($item)
     {
         $link = '<a href="' . $item->getUrl() . '">' . $item->getIcon() . ' ' . $item->title . '</a>';
-        return '<li' . $this->getActiveState($item) . '>' . $link . '</li>'.PHP_EOL;
+        return '<li' . $this->getActiveState($item) . '>' . $link . '</li>' . PHP_EOL;
     }
 
     /**
@@ -43,7 +44,7 @@ class FoundationDropdownMenuPresenter extends Presenter
      */
     public function getDividerWrapper()
     {
-        return '<li class="divider"></li>'.PHP_EOL;
+        return '<li class="divider"></li>' . PHP_EOL;
     }
 
     /**
@@ -56,6 +57,6 @@ class FoundationDropdownMenuPresenter extends Presenter
                 <ul class="vertical menu">
                   ' . $this->getChildMenuItems($item) . '
                 </ul>
-              </li>' . PHP_EOL;;
+              </li>' . PHP_EOL;
     }
 }

app/CMS/MenuPresenters/FoundationInitializedDropdownMenuPresenter.php

@@ -1,5 +1,5 @@
 <?php
-namespace App\MenuPresenters;
+namespace App\CMS\MenuPresenters;
 
 class FoundationInitializedDropdownMenuPresenter extends FoundationDropdownMenuPresenter
 {

app/CMS/MenuPresenters/MetismenuPresenter.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace App\CMS\MenuPresenters;
+
+use Nwidart\Menus\MenuItem;
+use Nwidart\Menus\Presenters\Presenter;
+
+class MetismenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<ul class="nav metismenu" id="sidebar-menu">' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</ul>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        if (!is_string($item->getUrl())) {
+            return null;
+        }
+
+        return '<li' . $this->getActiveState($item) . '><a href="' . $item->getUrl() . '">' . $item->getIcon() . ' ' . $item->title . '</a></li>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState(MenuItem $item)
+    {
+        if ($item->isDivider()) {
+            return null;
+        }
+
+        $active = ' class="active"';
+
+        if (empty($item->getChilds())) {
+            // for direct menu input return if page is active
+            return \Request::is($item->getRequest()) ? $active : null;
+        } else {
+            // on nested menu inputs loop over children and in case any of them is active, mark active also root level
+            foreach ($item->getChilds() as $child) {
+                if ($this->getActiveState($child)) {
+                    return $active;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<li class="divider"></li>' . PHP_EOL;
+    }
+
+    public function getMultiLevelDropdownWrapper($item)
+    {
+        return $this->getMenuWithDropDownWrapper($item);
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        $active = $this->getActiveState($item);
+        return '<li' . $active . '>
+              <a  href="#">' . $item->getIcon() . ' ' . $item->title . ' <i class="fa arrow"></i></a>
+                <ul>
+                  ' . $this->getChildMenuItems($item) . '
+                </ul>
+              </li>' . PHP_EOL;
+    }
+}

app/CMS/MenuPresenters/ProfileMenuPresenter.php

@@ -0,0 +1,62 @@
+<?php
+namespace App\CMS\MenuPresenters;
+
+use Nwidart\Menus\MenuItem;
+use Nwidart\Menus\Presenters\Presenter;
+
+
+class ProfileMenuPresenter extends Presenter
+{
+    /**
+     * {@inheritdoc }
+     */
+    public function getOpenTagWrapper()
+    {
+        return PHP_EOL . '<div class="dropdown-menu profile-dropdown-menu">' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getCloseTagWrapper()
+    {
+        return PHP_EOL . '</div>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithoutDropdownWrapper($item)
+    {
+        return '<a href="' . $item->getUrl() . '" class="dropdown-item">' . $item->getIcon() . ' ' . $item->title . '</a>' . PHP_EOL;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getActiveState(MenuItem $item)
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getDividerWrapper()
+    {
+        return '<div class="dropdown-divider"></div>' . PHP_EOL;
+    }
+
+    public function getMultiLevelDropdownWrapper($item)
+    {
+        return null;//$this->getMenuWithDropDownWrapper($item);
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function getMenuWithDropDownWrapper($item)
+    {
+        return null;
+    }
+}

app/CMS/ModuleManager/Installer.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\CMS\ModuleManager;
+
+use App\CMS\Contracts\Modules\AppHandler;
+use App\CMS\Contracts\Modules\TemplateHandler;
+use App\Models\Module;
+use Illuminate\Support\Facades\App;
+
+class Installer
+{
+    /**
+     * Create new module in database
+     *
+     * @param        $name
+     * @param        $alias
+     * @param string $description
+     * @param null   $handler
+     * @param        $parentModuleId
+     * @param array  $settings
+     *
+     * @return Module
+     * @throws \ErrorException
+     */
+    public static function install($name, $alias, $staticName, $description, $handler, $parentModuleId, $settings)
+    {
+        // check if user does not want to install module in runtime
+        if (!App::runningInConsole()) {
+            throw new \ErrorException('Modules can be installed only via Artisan!');
+        }
+
+        $managesContent = $handler ? in_array(AppHandler::class, class_implements($handler)) : false;
+        $isTemplate = $handler ? in_array(TemplateHandler::class, class_implements($handler)) : false;
+        $supportCategories = $managesContent ? call_user_func([$handler, 'supportCategories']) : false;
+
+        if ($parentModuleId) {
+            $parentModule = Module::findOrFail($parentModuleId);
+            $parentModule->has_submodules = true;
+            $parentModule->save();
+        }
+
+        // insert module into database
+        $module = Module::create([
+                                     'name'               => $name,
+                                     'description'        => $description,
+                                     'handler'            => $handler,
+                                     'static_name'        => $staticName,
+                                     'manages_content'    => $managesContent,
+                                     'support_categories' => $supportCategories,
+                                     'alias'              => $alias,
+                                     'module_settings'    => $settings,
+                                     'parent_id'          => $parentModuleId ? $parentModuleId : null,
+                                     'enabled'            => 1,
+                                     'is_template'        => $isTemplate
+                                 ]);
+
+        // install something module-specific
+        if ($handler && is_callable([$handler, 'install'])) {
+            call_user_func([$handler, 'install']);
+        }
+
+        return $module;
+    }
+}

app/CMS/ModuleManager/Providers/ModuleManager.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\CMS\ModuleManager\Providers;
+
+use App\CMS\Repositories\Module as ModuleRepository;
+use Illuminate\Support\ServiceProvider;
+
+class ModuleManager extends ServiceProvider
+{
+    /**
+     * Bootstrap the application services.
+     * @return void
+     */
+    public function boot()
+    {
+        // this service provider needs published config - config is merged right after this service provider
+        $modules = app(ModuleRepository::class)->getOnlyModules();
+
+
+        // iterate over all modules and enable or disable them
+        foreach ($modules as $module) {
+            if (isset($module->module_settings['providers']) && !empty($module->module_settings['providers'])) {
+                foreach ($module->module_settings['providers'] as $provider) {
+                    $this->app->register($provider);
+                }
+            }
+
+            // include files (if any)
+            if (isset($module->module_settings['files']) && !empty($module->module_settings['files'])) {
+                foreach ($module->module_settings['files'] as $file) {
+                    include config('modules.paths.modules') . '/' . $module->static_name . '/' . $file;
+                }
+            }
+        }
+    }
+
+    /**
+     * Register the application services.
+     * @return void
+     */
+    public function register()
+    {
+    }
+}

app/CMS/ModuleManager/Uninstaller.php

@@ -0,0 +1,60 @@
+<?php
+namespace  App\CMS\ModuleManager;
+
+use App\Models\Module;
+use App\Models\Templates\TemplatePath;
+use Illuminate\Support\Facades\App;
+
+class Uninstaller {
+    /**
+     * Delete module from database and uninstall its dependencies
+     *
+     * @param Module $module
+     *
+     * @throws \ErrorException
+     */
+    public static function uninstall(Module $module)
+    {
+        // check if user does not want to install module in runtime
+        if (!App::runningInConsole()) {
+            throw new \ErrorException('Modules can be uninstalled only via Artisan!');
+        }
+
+        // delete everything in /resources/views/visitor
+        if ($module->is_template) {
+            self::deleteDirectory(resource_path('views/visitor'));
+            self::deleteDirectory(resource_path('views/modules'));
+            self::deleteDirectory(public_path('assets'));
+
+            // delete all template paths
+            TemplatePath::getQuery()
+                        ->delete();
+        }
+
+        if ($module->handler && is_callable([$module->handler, 'uninstall'])) {
+            call_user_func([$module->handler, 'uninstall'], $module);
+        }
+
+        $module->delete();
+    }
+
+    /**
+     * Delete directory when uninstalling module.
+     *
+     * @param $directory
+     *
+     * @throws \ErrorException
+     */
+    private static function deleteDirectory($directory)
+    {
+        if (!is_dir($directory)) {
+            return;
+        }
+
+        $success = \File::deleteDirectory($directory, true);
+
+        if (!$success) {
+            throw new \ErrorException('Cannot delete ' . $directory);
+        }
+    }
+}

app/CMS/Modules/ServiceProviders/ServiceProvider.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\CMS\Modules\ServiceProviders;
+
+use Illuminate\Support\ServiceProvider as LaravelServiceProvider;
+
+abstract class ServiceProvider extends LaravelServiceProvider
+{
+    /**
+     * Indicates if loading of the provider is deferred.
+     * @var bool
+     */
+    protected $defer = false;
+    protected $alias = false;
+    protected $path = false;
+
+    abstract protected function setModuleAlias();
+
+    abstract protected function setModulePath();
+
+    /**
+     * Boot the application events.
+     * @return void
+     */
+    public function boot()
+    {
+        $this->setModuleAlias();
+        $this->setModulePath();
+
+        $this->registerTranslations();
+        $this->registerConfig();
+        $this->registerViews();
+    }
+
+    /**
+     * Register config.
+     * @return void
+     */
+    protected function registerConfig()
+    {
+        $this->publishes([$this->path . '/../Config/config.php' => config_path($this->alias . '.php')]);
+        $this->mergeConfigFrom($this->path . '/../Config/config.php', $this->alias);
+    }
+
+    public function register()
+    {
+    }
+
+    /**
+     * Register views.
+     * @return void
+     */
+    protected function registerViews()
+    {
+        $viewPath = base_path('resources/views/modules/' . $this->alias);
+        $sourcePath = $this->path . '/../Resources/views';
+
+        $this->loadViewsFrom(array_merge(array_map(function ($path) {
+            return $path . '/modules/' . $this->alias;
+        }, \Config::get('view.paths')), [$sourcePath]), $this->alias);
+
+        if (is_dir($sourcePath)) {
+            $this->publishes([$sourcePath => $viewPath], 'module-views');
+        }
+    }
+
+    /**
+     * Register translations.
+     * @return void
+     */
+    protected function registerTranslations()
+    {
+        $this->loadTranslationsFrom($this->path . '/../Resources/lang', $this->alias);
+    }
+}

app/CMS/Modules/Stubs/Config/config.stub

@@ -0,0 +1,12 @@
+<?php
+
+return [
+    'name' => '$Module$',
+    'translatedName' => '$module$::$module$.name',
+    'translatedDescription' => '$module$::$module$.description',
+    'alias'     => 'categories',
+    'handler'   => \Modules\$Module$\Handlers\$Module$Handler::class,
+    'providers' => [\Modules\$Module$\Providers\$Module$ServiceProvider::class],
+    'files'     => ['Http/routes.php'],
+    'order'     => 0,
+];

app/CMS/Modules/Stubs/Entities/$Entity$.stub

@@ -0,0 +1,8 @@
+<?php
+namespace Modules\$ModuleNamespace$\Entities;
+
+use Illuminate\Database\Eloquent\Model;
+
+class $Entity$ extends Model {
+	// ...
+}

app/CMS/Modules/Stubs/Handlers/$Module$ContentHandler.stub

@@ -0,0 +1,40 @@
+<?php
+
+namespace Modules\$ModuleNamespace$\Handlers;
+
+use App\CMS\Contracts\Content\ContentTitles;
+use App\Models\Content\Content;
+
+class $Module$ContentHandler extends $Module$Handler implements ContentTitles
+{
+    /**
+     * Get translated title for pages overview of given type.
+     * This value is used for rendering list of all content pages of given type in administration.
+     * @return string
+     */
+    public static function getOverviewTitle()
+    {
+        // TODO: Implement getOverviewTitle() method.
+    }
+
+    /**
+     * Title displayed above for for creating new content page
+     * @return string
+     */
+    public static function getCreateNewTitle()
+    {
+        // TODO: Implement getCreateNewTitle() method.
+    }
+
+    /**
+     * Title for form displayed for editin content page
+     *
+     * @param Content $content
+     *
+     * @return mixed
+     */
+    public static function getEditTitle(Content $content)
+    {
+        // TODO: Implement getEditTitle() method.
+    }
+}

app/CMS/Modules/Stubs/Handlers/$Module$Handler.stub

@@ -0,0 +1,38 @@
+<?php
+
+namespace Modules\$ModuleNamespace$\Handlers;
+
+use App\CMS\Handlers\BaseHandler;
+use App\Models\User;
+
+class $Module$Handler extends BaseHandler
+{
+    /**
+     * Register admin menu
+     *
+     * @param User $user
+     */
+    public static function registerAdminMenu(User $user)
+    {
+        // register links in admin menu
+        $menu = \Menu::instance('mainMenu');
+
+		  $menu->dropdown(trans('$module$::$module$.name'), function ($submenu) use ($user) {
+             $submenu->route('$module$.overview', trans('$module$::$module$.overview'), [], 20, ['icon' => 'fa fa-fw fa-list']);
+             $submenu->route('$module$.new', trans('$module$::$module$.new'), [], 21, ['icon' => 'fa fa-fw fa-plus']);
+        }, 15, ['icon' => 'fa fa-fw']);
+
+
+
+        // TODO: add admin menu entries
+    }
+
+    /**
+     * Does this module support categories?
+     * @return boolean
+     */
+    public static function supportCategories()
+    {
+        return true;
+    }
+}

app/CMS/Modules/Stubs/Http/Controllers/Admin/$Module$.stub

@@ -0,0 +1,103 @@
+<?php
+
+namespace Modules\$ModuleNamespace$\Http\Controllers\Admin;
+
+use App\Http\Controllers\Admin\Controller;
+use Modules\$ModuleNamespace$\Http\Requests\Update$Entity$;
+use Modules\$ModuleNamespace$\Http\Requests\Create$Entity$;
+use Modules\$ModuleNamespace$\Repositories\$Module$Repository;
+use $EntityNamespace$\$Entity$ as $Entity$Entity;
+
+class $Module$ extends Controller
+{
+    /**
+     * @var $Module$Repository
+     */
+    private $$module$Repository;
+
+    public function __construct($Module$Repository $$module$Repository)
+    {
+        $this->$module$Repository = $$module$Repository;
+    }
+
+    /**
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
+     */
+    public function index()
+    {
+		  $items = $Entity$Entity::all();
+
+        return view('$module$::admin/index', compact('items'));
+    }
+
+    /**
+     * Display form for updating entity
+     *
+     * @param $Entity$Entity $entity
+     *
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
+     */
+    public function edit($Entity$Entity $entity)
+    {
+        return view('$module$::admin/update', compact('entity'));
+    }
+
+    /**
+     * Update existing entity
+     *
+     * @param Update$Entity$ $request
+     * @param $Entity$Entity       $item
+     *
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function update(Update$Entity$ $request, $Entity$Entity $entity)
+    {
+
+        // ...
+
+        $this->$module$Repository->update($entity, $request->all());
+
+        return redirect()
+            ->back()
+            ->with('success', trans('$module$.$module.successfullyUpdated'));
+    }
+
+    /**
+     * Display form for creating new entity
+     *
+     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
+     */
+    public function create() {
+        $entity = new $Entity$Entity();
+
+        return view('$module$::admin/create', compact('entity'));
+    }
+
+    /**
+     * Create new instance of entity
+     */
+    public function store(Create$Entity$ $request) {
+        // ...
+
+        $this->$module$Repository->create($request->all());
+
+        return redirect()
+            ->back()
+            ->with('success', trans('$module$.$module.successfullyUpdated'));
+    }
+
+    /**
+     * Delete entity
+     *
+     * @param $Entity$ $entity
+     *
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function destroy($Entity$ $entity) {
+        $entity->delete();
+
+        return redirect()
+            ->back()
+            ->with('success', trans('$module$.$module.successfullyDeleted'));
+    }
+}

app/CMS/Modules/Stubs/Http/Requests/Create$Entity$.stub

@@ -0,0 +1,11 @@
+<?php
+namespace Modules\$ModuleNamespace$\Http\Requests;
+
+use App\Http\Requests\Request;
+
+class Create$Entity$ extends Request {
+    public function rules()
+    {
+        return parent::rules();
+    }
+}

app/CMS/Modules/Stubs/Http/Requests/Update$Entity$.stub

@@ -0,0 +1,11 @@
+<?php
+namespace Modules\$ModuleNamespace$\Http\Requests;
+
+use App\Http\Requests\Request;
+
+class Update$Entity$ extends Request {
+    public function rules()
+    {
+        return parent::rules();
+    }
+}

app/CMS/Modules/Stubs/Http/routes.stub

@@ -0,0 +1,25 @@
+<?php
+
+\Route::group([
+                 'prefix'     => \LaravelLocalization::setLocale() . '/admin/$module$',
+                 'middleware' => ['admin'],
+                 'namespace'  => 'Modules\$Module$\Http\Controllers\Admin'
+             ], function () {
+    Route::get('/', '$Module$@index')
+         ->name('$module$.overview');
+
+    Route::get('/new', '$Module$@create')
+         ->name('$module$.new');
+    
+    Route::post('/new', '$Module$@store')
+         ->name('$module$.postNew');
+
+    Route::get('/edit/{id}', '$Module$@edit')
+         ->name('$module$.edit');
+    
+    Route::post('/edit/{id}', '$Module$@update')
+         ->name('$module$.postEdit');
+
+    Route::get('/delete/{id}', '$Module$@delete')
+         ->name('$module$.delete');
+});

app/CMS/Modules/Stubs/Providers/$Module$ServiceProvider.stub

@@ -0,0 +1,31 @@
+<?php
+
+namespace Modules\$Module$\Providers;
+
+use App\CMS\Contracts\Modules\ServiceProvider;
+
+/**
+ * Class $Module$ServiceProvider
+ *
+ * Service provider for module $Module$
+ *
+ * @package Modules\$Module$\Providers
+ */
+class $Module$ServiceProvider extends ServiceProvider
+{
+    /**
+     * Set module Alias
+     */
+    protected function setModuleAlias()
+    {
+        $this->alias = strtolower('$module$');
+    }
+
+    /**
+     * Set path to module
+     */
+    protected function setModulePath()
+    {
+        $this->path = __DIR__;
+    }
+}

app/CMS/Modules/Stubs/Repositories/$Module$Repository.stub

@@ -0,0 +1,24 @@
+<?php
+namespace Modules\$ModuleNamespace$\Repositories;
+
+use $EntityNamespace$\$Entity$ as $Entity$Entity;
+
+class $Module$Repository {
+    /**
+     * Create new instance of entity
+     *
+     * @param $data
+     */
+    public function create($data) {
+        $Entity$Entity::create($data);
+    }
+
+    /**
+     * Update entity
+     *
+     * @param $Entity$Entity $entity
+     */
+    public function update($Entity$Entity $entity, $data) {
+        $entity->update($data);
+    }
+}

app/CMS/Modules/Stubs/Resources/lang/cs/$module$.stub

@@ -0,0 +1,13 @@
+<?php
+
+return [
+    'name' => '$Module$',
+    'new' => 'Vytvořit nový',
+    'description' => '',
+    'successfullyUpdated' => 'Úspěšně upraveno.',
+    'successfullyCreated' => 'Úspěšně vytvořeno.',
+    'successfullyDeleted' => 'Úspěšně smazáno.',
+    'overview' => 'Přehled',
+    'noItems' => 'Žádná data.',
+    'save' => 'Uložit'
+];