From 1e7545ec2df2c0532d6bd7255cb60d269a5ed113 Mon Sep 17 00:00:00 2001
From: Ricdijk <richard@vandijkonline.nl>
Date: Mon, 28 Dec 2020 20:30:42 +0100
Subject: [PATCH] implemented media::hasLiked() and added function to example
 likeAndUnlikeMdeia.php (#835)

---
 examples/likeAndUnlikeMedia.php      | 36 +++++++++++++++++++++++++---
 src/InstagramScraper/Model/Media.php | 18 +++++++++++++-
 2 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/examples/likeAndUnlikeMedia.php b/examples/likeAndUnlikeMedia.php
index 99cfc54f..412e799d 100644
--- a/examples/likeAndUnlikeMedia.php
+++ b/examples/likeAndUnlikeMedia.php
@@ -1,15 +1,45 @@
 <?php
+ini_set('display_errors', 1);ini_set('display_startup_errors', 1);error_reporting(E_ALL);
 use Phpfastcache\Helper\Psr16Adapter;
 use InstagramScraper\Exception\InstagramException;
 
 require __DIR__ . '/../vendor/autoload.php';
 
-$instagram = \InstagramScraper\Instagram::withCredentials(new \GuzzleHttp\Client(), 'username', 'password', new Psr16Adapter('Files'));
+$instagram = \InstagramScraper\Instagram::withCredentials(new \GuzzleHttp\Client(), 'user', 'passwd', new Psr16Adapter('Files'));
 $instagram->login();
 
+$mediaId='2474033634010898853';
+
+function loghasLiked($bool)
+{
+  echo "HasLiked: ";
+  var_export($bool);
+  if     ($bool === null) echo " -> Unknown\n<br>"; //e.g. getMedia by tag won't give us haslike (-> an additional call to getMediaByCode/Id will give the result)
+  elseif ($bool)          echo " -> Liked\n<br>";
+  else                    echo " -> Not Liked\n<br>";
+}
+
 try {
-    $instagram->like('1663256735663694497');
-    $instagram->unlike('1663256735663694497');
+    loghasLiked($instagram->getMediaById($mediaId)->getHasLiked());
+    //hasLiked: False -> Not Liked
+
+    $instagram->like($mediaId);
+    loghasLiked($instagram->getMediaById($mediaId)->getHasLiked());
+    //hasLiked: True -> Liked
+
+    $instagram->unlike($mediaId);
+    loghasLiked($instagram->getMediaById($mediaId)->getHasLiked());
+    //hasLiked: False -> Not Liked
+
+    echo "\n<br>";
+    $media = $instagram->getCurrentTopMediasByTagName('Photography')[0];
+    loghasLiked($media->getHasLiked());
+    //hasLiked: NULL -> Unknown
+
+    $media = $instagram->getMediaById($media->getId());
+    loghasLiked($media->getHasLiked());
+    //hasLiked: False -> Not Liked
+
 } catch (InstagramException $ex) {
     echo $ex->getMessage();
 }
diff --git a/src/InstagramScraper/Model/Media.php b/src/InstagramScraper/Model/Media.php
index 3c35d8f2..98a196f1 100644
--- a/src/InstagramScraper/Model/Media.php
+++ b/src/InstagramScraper/Model/Media.php
@@ -125,6 +125,11 @@ class Media extends AbstractModel
      */
     protected $likesCount = 0;
 
+    /**
+     * @var boolean
+     */
+    protected $hasLiked = null;
+
     /**
      * @var
      */
@@ -401,6 +406,14 @@ public function getLikesCount()
         return $this->likesCount;
     }
 
+    /**
+     * @return boolean
+     */
+    public function getHasLiked()
+    {
+      return $this->hasLiked;
+    }
+
     /**
      * @return mixed
      */
@@ -672,6 +685,9 @@ protected function initPropertiesCustom($value, $prop, $arr)
             case 'edge_liked_by':
                 $this->likesCount = $arr[$prop]['count'];
                 break;
+            case 'viewer_has_liked':
+                $this->hasLiked = $arr[$prop];
+                break;
             case 'edge_media_to_caption':
                 if (is_array($arr[$prop]['edges']) && !empty($arr[$prop]['edges'])) {
                     $first_caption = $arr[$prop]['edges'][0];
@@ -774,4 +790,4 @@ public function getOwner()
     {
         return $this->owner;
     }
-}
\ No newline at end of file
+}