Controllers/api/v2/boost/campaigns/preview.php

 <?php
-/**
- * preview
- * @author edgebal
- */
 
 namespace Minds\Controllers\api\v2\boost\campaigns;
 
+use Minds\Api\Api;
 use Minds\Core\Boost\Campaigns\Campaign;
 use Minds\Core\Boost\Campaigns\Stats;
 use Minds\Core\Di\Di;
-use Minds\Interfaces;
-use Minds\Api\Factory;
 
-class preview implements Interfaces\Api
+class preview extends Api
 {
-    /**
-     * Equivalent to HTTP GET method
-     * @param array $pages
-     * @return mixed|null
-     */
-    public function get($pages)
-    {
-        return Factory::response([]);
-    }
-
     /**
      * Equivalent to HTTP POST method
      * @param array $pages
      * @return mixed|null
      */
-    public function post($pages)
+    public function post($pages): void
     {
-        $campaign = new Campaign();
-
-        $campaign
+        $campaign = (new Campaign())
             ->setType($_POST['type'] ?? '')
             ->setEntityUrns($_POST['entity_urns'] ?? [])
             ->setBudgetType($_POST['budget_type'] ?? '')
             ->setHashtags($_POST['hashtags'] ?? [])
-            ->setStart((int) ($_POST['start'] ?? 0))
-            ->setEnd((int) ($_POST['end'] ?? 0))
-            ->setBudget((float) ($_POST['budget'] ?? 0));
+            ->setStart((int)($_POST['start'] ?? 0))
+            ->setEnd((int)($_POST['end'] ?? 0))
+            ->setBudget((float)($_POST['budget'] ?? 0))
+            ->setImpressions($_POST['impressions']);
 
         /** @var Stats $statsManager */
         $statsManager = Di::_()->get('Boost\Campaigns\Stats');
 
-        $stats = $statsManager->get($campaign);
-
-        return Factory::response([
-            'preview' => [
-                'cannot_fulfill_daily' => $stats['cannot_fulfill_daily'],
-            ]
-        ]);
-    }
-
-    /**
-     * Equivalent to HTTP PUT method
-     * @param array $pages
-     * @return mixed|null
-     */
-    public function put($pages)
-    {
-        return Factory::response([]);
-    }
-
-    /**
-     * Equivalent to HTTP DELETE method
-     * @param array $pages
-     * @return mixed|null
-     */
-    public function delete($pages)
-    {
-        return Factory::response([]);
+        $this->send($statsManager->setCampaign($campaign)->getAll());
     }
 }

Core/Boost/Campaigns/Manager.php

@@ -7,6 +7,7 @@ use Minds\Common\Repository\Response;
 use Minds\Common\Urn;
 use Minds\Core\Boost\Campaigns\Payments\Payment;
 use Minds\Core\Boost\Campaigns\Payments\Repository as PaymentsRepository;
+use Minds\Core\Boost\Checksum;
 use Minds\Core\Queue\Client as QueueClient;
 use Minds\Core\Queue\Interfaces\QueueClient as QueueClientInterface;
 use Minds\Entities\User;
@@ -202,7 +203,10 @@ class Manager
             throw new CampaignException('Invalid campaign type');
         }
 
-        // TODO: Validate based on data
+        /** TODO: Checksum Verification */
+        //$guid = (new Urn($campaign->getEntityUrns()[0]))->getNss();
+        //$checksum = (new Checksum())->setGuid($campaign->getGuid())->setEntity($guid)->generate();
+        //if (!$campaign->getChecksum() || ($campaign->getChecksum() !== $checksum)) {
         if (!$campaign->getChecksum()) {
             throw new CampaignException('Invalid checksum value');
         }

Core/Boost/Campaigns/Stats.php

@@ -2,16 +2,48 @@
 
 namespace Minds\Core\Boost\Campaigns;
 
+use Minds\Core\Analytics\EntityCentric\BoostViewsDaily;
+use Minds\Core\Time;
+
 class Stats
 {
+    /** @var Campaign */
+    protected $campaign;
+
+    /** @var BoostViewsDaily */
+    protected $boostViewsDaily;
+
+    public function __construct(BoostViewsDaily $boostViewsDaily = null)
+    {
+        $this->boostViewsDaily = $boostViewsDaily ?: new BoostViewsDaily();
+    }
+
     /**
      * @param Campaign $campaign
+     * @return Stats
+     */
+    public function setCampaign(Campaign $campaign): self
+    {
+        $this->campaign = $campaign;
+        return $this;
+    }
+
+    /**
      * @return array
      */
-    public function get(Campaign $campaign)
+    public function getAll(): array
     {
+        /* TODO: Evaluate the campaign targetting parameters against our data */
+
+        $campaignDurationDays = ($this->campaign->getEnd() - $this->campaign->getStart()) / Time::ONE_DAY_MS;
+        $campaignViewsPerDayReq = ($campaignDurationDays > 0) ? $this->campaign->getImpressions() / $campaignDurationDays : 0;
+        $globalViewsPerDay = $this->boostViewsDaily->getAvg();
+
         return [
-            'cannot_fulfill_daily' => false,
+            'canBeDelivered' => ($campaignViewsPerDayReq < $globalViewsPerDay),
+            'durationDays' => $campaignDurationDays,
+            'viewsPerDayRequested' => $campaignViewsPerDayReq,
+            'globalViewsPerDay' => $globalViewsPerDay
         ];
     }
 }

Spec/Core/Boost/Campaigns/ManagerSpec.php

@@ -157,6 +157,8 @@ class ManagerSpec extends ObjectBehavior
         $campaign->getOwnerGuid()->shouldBeCalled()->willReturn(1234);
         $campaign->getName()->shouldBeCalled()->willReturn('Test Campaign');
         $campaign->getType()->shouldBeCalled()->willReturn('newsfeed');
+        //$campaign->getEntityUrns()->shouldBeCalled()->willReturn(['urn:activity:12345']);
+        //$campaign->getGuid()->shouldBeCalled()->willReturn(12345);
         $campaign->getChecksum()->shouldBeCalled()->willReturn(null);
         $this->shouldThrow(CampaignException::class)->duringCreateCampaign($campaign);
     }

Spec/Core/Boost/Campaigns/StatsSpec.php

@@ -2,21 +2,66 @@
 
 namespace Spec\Minds\Core\Boost\Campaigns;
 
+use Minds\Core\Analytics\EntityCentric\BoostViewsDaily;
 use Minds\Core\Boost\Campaigns\Campaign;
 use Minds\Core\Boost\Campaigns\Stats;
 use PhpSpec\ObjectBehavior;
+use Prophecy\Argument;
 
 class StatsSpec extends ObjectBehavior
 {
+    /** @var BoostViewsDaily */
+    protected $boostViewsDaily;
+
     public function it_is_initializable()
     {
         $this->shouldHaveType(Stats::class);
     }
 
-    public function it_should_get_stats(Campaign $campaign)
+    public function let(BoostViewsDaily $boostViewsDaily)
+    {
+        $this->beConstructedWith($boostViewsDaily);
+        $this->boostViewsDaily = $boostViewsDaily;
+    }
+
+    public function it_should_set_campaign(Campaign $campaign)
+    {
+        $this->setCampaign($campaign)->shouldReturn($this);
+    }
+
+    public function it_should_get_all_stats_with_can_be_delivered_false(Campaign $campaign)
     {
-        $this->get($campaign)->shouldReturn([
-            'cannot_fulfill_daily' => false,
-        ]);
+        $stats = [
+            'canBeDelivered' => false,
+            'durationDays' => 5,
+            'viewsPerDayRequested' => 50000,
+            'globalViewsPerDay' => 10000
+        ];
+
+        $this->setCampaign($campaign);
+        $campaign->getEnd()->shouldBeCalled()->willReturn(1570924800000);
+        $campaign->getStart()->shouldBeCalled()->willReturn(1570492800000);
+        $campaign->getImpressions()->shouldBeCalled()->willReturn(250000);
+        $this->boostViewsDaily->getAvg()->shouldBeCalled()->willReturn(10000);
+
+        $this->getAll()->shouldHaveKeyWithValue('canBeDelivered', false);
+    }
+
+    public function it_should_get_all_stats(Campaign $campaign)
+    {
+        $stats = [
+            'canBeDelivered' => true,
+            'durationDays' => 5,
+            'viewsPerDayRequested' => 1000,
+            'globalViewsPerDay' => 10000
+        ];
+
+        $this->setCampaign($campaign);
+        $campaign->getEnd()->shouldBeCalled()->willReturn(1570924800000);
+        $campaign->getStart()->shouldBeCalled()->willReturn(1570492800000);
+        $campaign->getImpressions()->shouldBeCalled()->willReturn(5000);
+        $this->boostViewsDaily->getAvg()->shouldBeCalled()->willReturn(10000);
+
+        $this->getAll()->shouldHaveKeyWithValue('canBeDelivered', true);
     }
 }