out of stock notification

app/Http/Controllers/Auth/Users.php

@@ -203,4 +203,27 @@ class Users extends Controller
         // Redirect to invoices
         return redirect('incomes/invoices');
     }
+
+    /**
+     * Mark items out of stock notifications are read and redirect to items page.
+     *
+     * @param  User  $user
+     *
+     * @return Response
+     */
+    public function readItemsOutOfStock(User $user)
+    {
+        // Mark item notifications as read
+        foreach ($user->unreadNotifications as $notification) {
+            // Not an item notification
+            if ($notification->getAttribute('type') != 'App\Notifications\Item\Item') {
+                continue;
+            }
+
+            $notification->markAsRead();
+        }
+
+        // Redirect to items
+        return redirect('items/items');
+    }
 }

app/Http/Controllers/Expenses/Bills.php

@@ -153,6 +153,10 @@ class Bills extends Controller
                     $item_object = Item::find($item['item_id']);
 
                     $item_sku = $item_object->sku;
+
+                    // Increase stock (item bought)
+                    $item_object->quantity++;
+                    $item_object->save();
                 }
 
                 $tax = $tax_id = 0;

app/Http/Controllers/Incomes/Invoices.php

@@ -21,6 +21,7 @@ use App\Models\Setting\Category;
 use App\Models\Setting\Currency;
 use App\Models\Setting\Tax;
 use App\Notifications\Income\Invoice as Notification;
+use App\Notifications\Item\Item as ItemNotification;
 use App\Traits\Currencies;
 use App\Traits\DateTime;
 use App\Traits\Uploads;
@@ -161,6 +162,21 @@ class Invoices extends Controller
                     $item_object = Item::find($item['item_id']);
 
                     $item_sku = $item_object->sku;
+
+                    // Decrease stock (item sold)
+                    $item_object->quantity--;
+                    $item_object->save();
+
+                    // Notify users if out of stock
+                    if ($item_object->quantity == 0) {
+                        foreach ($item_object->company->users as $user) {
+                            if (!$user->can('read-notifications')) {
+                                continue;
+                            }
+
+                            $user->notify(new ItemNotification($item_object));
+                        }
+                    }
                 }
 
                 $tax = $tax_id = 0;

app/Http/ViewComposers/Header.php

@@ -20,6 +20,7 @@ class Header
 
         $bills = [];
         $invoices = [];
+        $items = [];
         $notifications = 0;
         $company = null;
 
@@ -47,6 +48,10 @@ class Header
                     $invoices[$data['invoice_id']] = $data['amount'];
                     $notifications++;
                     break;
+                case 'App\Notifications\Item\Item':
+                    $items[$data['item_id']] = $data['name'];
+                    $notifications++;
+                    break;
             }
         }
 
@@ -57,6 +62,7 @@ class Header
             'notifications' => $notifications,
             'bills' => $bills,
             'invoices' => $invoices,
+            'items' => $items,
             'company' => $company,
             'updates' => $updates,
         ]);

app/Notifications/Item/Item.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Notifications\Item;
+
+use Illuminate\Notifications\Notification;
+use Illuminate\Notifications\Messages\MailMessage;
+
+class Item extends Notification
+{
+    /**
+     * The item model.
+     *
+     * @var object
+     */
+    public $item;
+
+    /**
+     * Create a notification instance.
+     *
+     * @param  object  $item
+     */
+    public function __construct($item)
+    {
+        $this->item = $item;
+    }
+
+    /**
+     * Get the notification's channels.
+     *
+     * @param  mixed  $notifiable
+     * @return array|string
+     */
+    public function via($notifiable)
+    {
+        return ['mail', 'database'];
+    }
+
+    /**
+     * Build the mail representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return \Illuminate\Notifications\Messages\MailMessage
+     */
+    public function toMail($notifiable)
+    {
+        return (new MailMessage)
+            ->line(trans('items.notification.message', ['name' => $this->item->name]))
+            ->action(trans('items.notification.button'), url('items/items', $this->item->id, true));
+    }
+
+    /**
+     * Get the array representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function toArray($notifiable)
+    {
+        return [
+            'item_id' => $this->item->id,
+            'name' => $this->item->name,
+        ];
+    }
+}

resources/lang/en-GB/header.php

@@ -8,6 +8,7 @@ return [
         'counter'           => '{0} You have no notification|{1} You have :count notification|[2,*] You have :count notifications',
         'overdue_invoices'  => '{1} :count overdue invoice|[2,*] :count overdue invoices',
         'upcoming_bills'    => '{1} :count upcoming bill|[2,*] :count upcoming bills',
+        'items_stock'       => '{1} :count item out of stock|[2,*] :count items out of stock',
         'view_all'          => 'View All'
     ],
 

resources/lang/en-GB/items.php

@@ -7,4 +7,9 @@ return [
     'purchase_price'        => 'Purchase Price',
     'sku'                   => 'SKU',
 
+    'notification' => [
+        'message'       => 'You are receiving this email because the :name is running out of stock.',
+        'button'        => 'View Now',
+    ],
+
 ];

resources/views/partials/admin/header.blade.php

@@ -116,6 +116,13 @@
                                     </a>
                                 </li>
                                 @endif
+                                @if (count($items))
+                                <li>
+                                    <a href="{{ url('auth/users/' . $user->id . '/read-items') }}">
+                                        <i class="fa fa-cubes text-red"></i> {{ trans_choice('header.notifications.items_stock', count($items), ['count' => count($items)]) }}
+                                    </a>
+                                </li>
+                                @endif
                             </ul>
                         </li>
                         <li class="footer"><a href="#">{{ trans('header.notifications.view_all') }}</a></li>

routes/web.php

@@ -31,6 +31,7 @@ Route::group(['middleware' => 'language'], function () {
                 Route::get('logout', 'Auth\Login@destroy')->name('logout');
                 Route::get('users/{user}/read-bills', 'Auth\Users@readUpcomingBills');
                 Route::get('users/{user}/read-invoices', 'Auth\Users@readOverdueInvoices');
+                Route::get('users/{user}/read-items', 'Auth\Users@readItemsOutOfStock');
                 Route::resource('users', 'Auth\Users');
                 Route::resource('roles', 'Auth\Roles');
                 Route::resource('permissions', 'Auth\Permissions');