From fc0df1de4e641dfdfaf72ab4cceb92003c75af7c Mon Sep 17 00:00:00 2001
From: Lasse Mammen <lkm@bookboon.com>
Date: Thu, 31 Jan 2019 14:06:38 +0000
Subject: [PATCH 1/3] Add AudioTalk book type

Signed-off-by: Lasse Mammen <lkm@bookboon.com>
---
 src/Entity/AudioTalkBook.php | 8 ++++++++
 src/Entity/Book.php          | 1 +
 2 files changed, 9 insertions(+)
 create mode 100644 src/Entity/AudioTalkBook.php

diff --git a/src/Entity/AudioTalkBook.php b/src/Entity/AudioTalkBook.php
new file mode 100644
index 0000000..f3b561e
--- /dev/null
+++ b/src/Entity/AudioTalkBook.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Bookboon\Api\Entity;
+
+class AudioTalkBook extends Book
+{
+    const _OWN_TYPE = Book::TYPE_AUDIOTALK;
+}
diff --git a/src/Entity/Book.php b/src/Entity/Book.php
index 317db3e..4d86bd3 100644
--- a/src/Entity/Book.php
+++ b/src/Entity/Book.php
@@ -13,6 +13,7 @@ class Book extends Entity
     const TYPE_AUDIO = 'audio';
     const TYPE_PDF = 'pdf';
     const TYPE_VIDEO = 'video';
+    const TYPE_AUDIOTALK = 'audioTalk';
 
     const FORMAT_PDF = 'pdf';
     const FORMAT_EPUB = 'epub';

From d62561eba3c494f48fffc74bea2946d0653e92d0 Mon Sep 17 00:00:00 2001
From: Lasse Mammen <lkm@bookboon.com>
Date: Thu, 31 Jan 2019 14:07:05 +0000
Subject: [PATCH 2/3] Prevent unknown book types throwing exceptions for
 missing class

Signed-off-by: Lasse Mammen <lkm@bookboon.com>
---
 src/Entity/Book.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Entity/Book.php b/src/Entity/Book.php
index 4d86bd3..d201b9a 100644
--- a/src/Entity/Book.php
+++ b/src/Entity/Book.php
@@ -118,7 +118,13 @@ public static function getEntitiesFromArray(array $array)
     {
         $entities = [];
         foreach ($array as $object) {
-            $entities[] = self::objectTransformer($object);
+            if (in_array(
+                $object['_type'],
+                [self::TYPE_PDF, self::TYPE_AUDIO, self::TYPE_VIDEO, self::TYPE_AUDIOTALK],
+                true)
+            ) {
+                $entities[] = self::objectTransformer($object);
+            }
         }
 
         return $entities;

From 9ccd486008ac5fea14b50258bd0b0165d4ff88db Mon Sep 17 00:00:00 2001
From: Lasse Mammen <lkm@bookboon.com>
Date: Thu, 31 Jan 2019 14:17:49 +0000
Subject: [PATCH 3/3] Make Book entity abstract

Signed-off-by: Lasse Mammen <lkm@bookboon.com>
---
 src/Entity/Book.php       | 4 ++--
 src/Entity/Exam.php       | 3 +--
 tests/Entity/BookTest.php | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/Entity/Book.php b/src/Entity/Book.php
index d201b9a..dd30f2e 100644
--- a/src/Entity/Book.php
+++ b/src/Entity/Book.php
@@ -6,7 +6,7 @@
 use Bookboon\Api\Client\BookboonResponse;
 use Bookboon\Api\Client\ClientInterface;
 
-class Book extends Entity
+abstract class Book extends Entity
 {
     const _OWN_TYPE = '';
 
@@ -104,7 +104,7 @@ public static function getAll(
      * @param array $objectArray
      * @return Book
      */
-    private static function objectTransformer(array $objectArray)
+    public static function objectTransformer(array $objectArray)
     {
         $className = 'Bookboon\Api\Entity\\' . ucfirst($objectArray['_type']) . 'Book';
         return new $className($objectArray);
diff --git a/src/Entity/Exam.php b/src/Entity/Exam.php
index 2080450..fafdbb2 100644
--- a/src/Entity/Exam.php
+++ b/src/Entity/Exam.php
@@ -128,11 +128,10 @@ public function getTimeSeconds()
      * Return book to which the exam is related
      *
      * @return Book
-     * @throws \Bookboon\Api\Exception\EntityDataException
      */
     public function getBook()
     {
-        return new Book($this->safeGet('book', []));
+        return Book::objectTransformer($this->safeGet('book', []));
     }
 
     /**
diff --git a/tests/Entity/BookTest.php b/tests/Entity/BookTest.php
index dc3d92f..45ff6b0 100644
--- a/tests/Entity/BookTest.php
+++ b/tests/Entity/BookTest.php
@@ -107,7 +107,7 @@ public function testHasPdf()
      */
     public function testInvalidBook()
     {
-        $book = new Book(['blah']);
+        $book = new PdfBook(['blah']);
     }
 
     public function testBookDownloadOauth()