-<?php namespace BookStack\Entities;
+<?php
+namespace BookStack\Entities;
+use BookStack\Entities\Models\Book;
+use BookStack\Entities\Models\Bookshelf;
+use BookStack\Entities\Models\Chapter;
+use BookStack\Entities\Models\Entity;
+use BookStack\Entities\Models\Page;
+use BookStack\Entities\Models\PageRevision;
+
+/**
+ * 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.
+ */
class EntityProvider
{
- // TODO -
-}
\ No newline at end of file
+ public Bookshelf $bookshelf;
+ public Book $book;
+ public Chapter $chapter;
+ public Page $page;
+ public PageRevision $pageRevision;
+
+ public function __construct()
+ {
+ $this->bookshelf = new Bookshelf();
+ $this->book = new Book();
+ $this->chapter = new Chapter();
+ $this->page = new Page();
+ $this->pageRevision = new PageRevision();
+ }
+
+ /**
+ * Fetch all core entity types as an associated array
+ * with their basic names as the keys.
+ *
+ * @return array<string, Entity>
+ */
+ public function all(): array
+ {
+ return [
+ 'bookshelf' => $this->bookshelf,
+ 'book' => $this->book,
+ 'chapter' => $this->chapter,
+ 'page' => $this->page,
+ ];
+ }
+
+ /**
+ * Get an entity instance by its basic name.
+ */
+ public function get(string $type): Entity
+ {
+ $type = strtolower($type);
+ $instance = $this->all()[$type] ?? null;
+
+ if (is_null($instance)) {
+ throw new \InvalidArgumentException("Provided type \"{$type}\" is not a valid entity type");
+ }
+
+ return $instance;
+ }
+
+ /**
+ * Get the morph classes, as an array, for a single or multiple types.
+ */
+ public function getMorphClasses(array $types): array
+ {
+ $morphClasses = [];
+ foreach ($types as $type) {
+ $model = $this->get($type);
+ $morphClasses[] = $model->getMorphClass();
+ }
+
+ return $morphClasses;
+ }
+}