Fleshed out entity provided and optimized imports

app/Entities/EntityProvider.php

@@ -1,7 +1,78 @@
 <?php namespace BookStack\Entities;
 
-
+/**
+ * Class EntityProvider
+ *
+ * Provides access to the core entity models.
+ * Wrapped up in this provider since they are often used together
+ * so this is a neater alternative to injecting all in individually.
+ *
+ * @package BookStack\Entities
+ */
 class EntityProvider
 {
-    // TODO -
+
+    /**
+     * @var Bookshelf
+     */
+    protected $bookshelf;
+
+    /**
+     * @var Book
+     */
+    protected $book;
+
+    /**
+     * @var Chapter
+     */
+    protected $chapter;
+
+    /**
+     * @var Page
+     */
+    protected $page;
+
+    /**
+     * @var PageRevision
+     */
+    protected $pageRevision;
+
+    /**
+     * EntityProvider constructor.
+     * @param Bookshelf $bookshelf
+     * @param Book $book
+     * @param Chapter $chapter
+     * @param Page $page
+     * @param PageRevision $pageRevision
+     */
+    public function __construct(
+        Bookshelf $bookshelf,
+        Book $book,
+        Chapter $chapter,
+        Page $page,
+        PageRevision $pageRevision
+    ) {
+        $this->bookshelf = $bookshelf;
+        $this->book = $book;
+        $this->chapter = $chapter;
+        $this->page = $page;
+        $this->pageRevision = $pageRevision;
+    }
+
+    /**
+     * Fetch all core entity types as an associated array
+     * with their basic names as the keys.
+     * @return Entity[]
+     */
+    public function all()
+    {
+        return [
+            'bookshelf' => $this->bookshelf,
+            'book' => $this->book,
+            'chapter' => $this->chapter,
+            'page' => $this->page,
+        ];
+    }
+
+
 }