Add ActionGroup class

src/ActionGroup.php

@@ -0,0 +1,76 @@
+<?php
+declare (strict_types=1);
+
+namespace LotGD\Core;
+
+/**
+ * A grouping of navigation actions, like a submenu.
+ */
+class ActionGroup
+{
+    private $id;
+    private $title;
+    private $sortKey;
+    private $actions;
+
+    /**
+     * Create a new ActionGroup, starting with an empty set of actions.
+     * @param string $id Unique identifier for this group, in the vendor/module/group format.
+     * @param string $title Title to display to the end user. Empty string means no title.
+     * @param string $sortKey Navigation menus are displayed in the order sorted by this string.
+     */
+    public function __construct(string $id, string $title, string $sortKey)
+    {
+        $this->id = $id;
+        $this->title = $title;
+        $this->sortKey = $sortKey;
+        $this->actions = [];
+    }
+
+    /**
+     * Returns the unique identifier for this group, in the vendor/module/group format.
+     * @return string
+     */
+    public function getId(): string
+    {
+        return $this->id;
+    }
+
+    /**
+     * Returns the title for this group.
+     * @return string
+     */
+    public function getTitle(): string
+    {
+        return $this->title;
+    }
+
+    /**
+     * Returns the sort key for this group. The ordering of the groups in the
+     * final menu displayed to users will be sorted by this key. The default
+     * menu's sort key is 'A'.
+     * @return string
+     */
+    public function getSortKey(): string
+    {
+        return $this->sortKey;
+    }
+
+    /**
+     * Returns the ordered array of actions.
+     * @return array<Action>
+     */
+    public function getActions(): array
+    {
+        return $this->actions;
+    }
+
+    /**
+     * Sets the ordered array of actions.
+     * @param array<Action> $actions
+     */
+    public function setActions(array $actions)
+    {
+        $this->actions = $actions;
+    }
+}