Language update

Added different level of language preference functionaloty which can be
set from the new option in top navigation bar
Lanaguage preference can be set as
* System language (Default for all users)
* Session based   (User who are not logged in and want to see they
system in language of their choice can set their preference in browser
session)
* User lever (for authenticated users who have updated their language
preference, system will change into their selected language when they
log into the system)

app/Exceptions/Handler.php

@@ -48,6 +48,7 @@ class Handler extends ExceptionHandler
      */
     public function report(Exception $e)
     {
+        dd($e);
         Bugsnag::setBeforeNotifyFunction(function ($error) { //set bugsnag
             return false;
         });

app/Http/Controllers/Admin/helpdesk/LanguageController.php

@@ -84,6 +84,7 @@ class LanguageController extends Controller
         $path = base_path('resources/lang');
         $values = scandir($path);  //Extracts names of directories present in lang directory
         $values = array_slice($values, 2); // skips array element $value[0] = '.' & $value[1] = '..'
+        $sysLanguage = \Cache::get('language');
         return \Datatable::collection(new Collection($values))
                         ->addColumn('language', function ($model) {
                             if ($model == Config::get('app.fallback_locale')) {
@@ -95,15 +96,15 @@ class LanguageController extends Controller
                         ->addColumn('id', function ($model) {
                             return $model;
                         })
-                        ->addColumn('status', function ($model) {
-                            if (Lang::getLocale() === $model) {
+                        ->addColumn('status', function ($model) use ($sysLanguage){
+                            if ($sysLanguage === $model) {
                                 return "<span style='color:green'>".Lang::trans('lang.active').'</span>';
                             } else {
                                 return "<span style='color:red'>".Lang::trans('lang.inactive').'</span>';
                             }
                         })
-                        ->addColumn('Action', function ($model) {
-                            if (Lang::getLocale() === $model) {
+                        ->addColumn('Action', function ($model) use ($sysLanguage) {
+                            if ($model === $sysLanguage) {
                                 return "<a href='change-language/".$model."'><input type='button' class='btn btn-info btn-xs btn-flat' disabled value='".Lang::trans('lang.disable')."'/></a>  
                 <a href='change-language/".$model."' class='btn btn-danger btn-xs btn-flat' disabled><i class='fa fa-trash' style='color:black;'> </i> ".Lang::trans('lang.delete').'</a>';
                             } else {

app/Http/Controllers/Client/helpdesk/UnAuthController.php

@@ -19,6 +19,7 @@ use Hash;
 // classes
 use Illuminate\Http\Request;
 use Lang;
+use Session;
 
 /**
  * GuestController.
@@ -415,4 +416,30 @@ class UnAuthController extends Controller
             }
         }
     }
+
+    /**
+     * Function to chnage user language preference
+     *
+     * @param string $lang //desired language's iso code
+     *
+     * @category function to change system's language
+     *
+     * @return response
+     */
+    public static function changeUserLanguage($lang)
+    {
+        $path = base_path('resources/lang');  // Path to check available language packages
+        if (array_key_exists($lang, \Config::get('languages')) && in_array($lang, scandir($path))) {
+            if (\Auth::check()) {
+                $id = \Auth::user()->id;
+                $user = User::find($id);
+                $user->user_language = $lang;
+                $user->save();
+            } else {
+                Session::put('language', $lang);
+            }
+        }
+
+        return redirect()->back();
+    }
 }