Automatically post on facebook page

.env.example

@@ -30,4 +30,8 @@ MAIL_ENCRYPTION=null
 
 PUSHER_APP_ID=
 PUSHER_APP_KEY=
-PUSHER_APP_SECRET=
+PUSHER_APP_SECRET=
+
+FB_APP_ID=
+FB_APP_SECRET=
+FB_PAGE_TOKEN=

app/Http/Controllers/NeedsController.php

@@ -6,18 +6,24 @@
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Response;
 use Validator;
+use App\Services\FacebookNotification;
+use DomainException;
 
 class NeedsController extends Controller
 {
     private $need;
 
+    private $fbNotifier;
+
     /**
      * NeedsController constructor.
      * @param NeedsRepository $needsRepository
+     * @param FacebookNotification $fbNotifier
      */
-    public function __construct(NeedsRepository $needsRepository)
+    public function __construct(NeedsRepository $needsRepository, FacebookNotification $fbNotifier)
     {
         $this->need = $needsRepository;
+        $this->fbNotifier = $fbNotifier;
     }
 
     /**
@@ -63,12 +69,19 @@ public function save(Request $request)
                 ->with('errors', $validator->errors()->all())
                 ->withInput();
         } else {
-            $response = $this->need->addNeed($request->all());
-            if ($response) {
+            try {
+
+                $need = $this->need->addNeed($request->all());
+
+                //need is being created first and if fb posting fail rest of the logic
+                //is executed
+                $fbId = $this->fbNotifier->publishNeed($need);
+                $this->need->updateNeed($need->id, ['fb_post_id' => $fbId]);
+
                 return redirect('/needs')
                     ->with('isSuccess', true)
                     ->with('message', 'Needs added.');
-            } else {
+            } catch (DomainException $e) {
                 return redirect('/needs/add')
                     ->with('isSuccess', false)
                     ->with('errors', ['Needs adding failed. Please try again.'])

app/Need.php

@@ -12,6 +12,6 @@ class Need extends Model
      * @var array
      */
     protected $fillable = [
-        'name', 'telephone', 'address', 'city', 'needs', 'heads'
+        'name', 'telephone', 'address', 'city', 'needs', 'heads', 'fb_post_id'
     ];
 }

app/Repositories/NeedsRepository.php

@@ -11,6 +11,7 @@
 use App\Need;
 use App\Repositories\Contracts\NeedsInterface;
 use Illuminate\Support\Facades\Log;
+use DomainException;
 
 class NeedsRepository implements NeedsInterface
 {
@@ -23,10 +24,20 @@ class NeedsRepository implements NeedsInterface
     public function addNeed($input)
     {
         try {
-            Need::create($input);
-            return true;
+            return Need::create($input);
         } catch (\Exception $e) {
-            Log::error($e->getMessage());
+            throw new DomainException('Unable to create need.');
+        }
+    }
+
+    public function updateNeed($id, array $input)
+    {
+        $need = $this->findNeed($id);
+
+        if ($need) {
+            $need->fill($input);
+            return $need->save();
+        } else {
             return false;
         }
     }

app/Services/FacebookNotification.php

@@ -0,0 +1,51 @@
+<?php
+namespace App\Services;
+
+use App\Need;
+use Facebook\Facebook;
+use Facebook\Exceptions\FacebookResponseException;
+use Facebook\Exceptions\FacebookSDKException;
+use DomainException;
+use Config;
+use Log;
+
+class FacebookNotification
+{
+    protected $fb;
+
+    public function __construct()
+    {
+        //TODO: should come from the IoC container
+        //hardcoding to validate the feature
+        $this->fb = new Facebook([
+          'app_id' => Config::get('services.facebook.app_id'),
+          'app_secret' => Config::get('services.facebook.app_secret'),
+          'default_graph_version' => 'v2.9',
+          'default_access_token' => Config::get('services.facebook.page_token')
+        ]);
+    }
+
+    public function publishNeed(Need $need)
+    {
+        $content   = [];
+        $content[] = $need->needs;
+        $content[] = $need->address;
+        $content[] = $need->city;
+        $content[] = "People - ". $need->heads;
+        $content[] = $need->name.' - '.$need->telephone;
+
+        try {
+
+          $response = $this->fb->post('/me/feed', ['message' => implode($content, "\n")]);
+          $response->decodeBody();
+          return array_get($response->getDecodedBody(), 'id');
+
+        } catch(FacebookResponseException $e) {
+            Log::error($e);
+            return false;
+        } catch(FacebookSDKException $e) {
+            Log::error($e);
+            return false;
+        }
+    }
+}

composer.json

@@ -1,11 +1,12 @@
-    {
+{
     "name": "laravel/laravel",
     "description": "The Laravel Framework.",
     "keywords": ["framework", "laravel"],
     "license": "MIT",
     "type": "project",
     "require": {
         "php": ">=5.6.4",
+        "facebook/graph-sdk": "^5.5",
         "laravel/framework": "5.4.*",
         "laravel/tinker": "~1.0"
     },

config/services.php

@@ -35,4 +35,10 @@
         'secret' => env('STRIPE_SECRET'),
     ],
 
+    'facebook' => [
+        'app_id' => env('FB_APP_ID'),
+        'app_secret' => env('FB_APP_SECRET'),
+        'page_token' => env('FB_PAGE_TOKEN')
+    ]
+
 ];

database/migrations/2017_05_29_003241_add_fb_post_id_to_needs.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddFbPostIdToNeeds extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('needs', function (Blueprint $table) {
+            $table->string("fb_post_id", 100)->after("heads")->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('needs', function (Blueprint $table) {
+            $table->dropColumn("needs");
+        });
+    }
+}