first version

kirby/src/Cms/Ingredients.php

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+<?php
+
+namespace Kirby\Cms;
+
+use Closure;
+
+/**
+ * The Ingredients class is the foundation for
+ * $kirby->urls() and $kirby->roots() objects.
+ * Those are configured in `kirby/config/urls.php`
+ * and `kirby/config/roots.php`
+ */
+class Ingredients
+{
+
+    /**
+     * @var array
+     */
+    protected $ingredients = [];
+
+    /**
+     * Creates a new ingredient collection
+     *
+     * @param array $ingredients
+     */
+    public function __construct(array $ingredients)
+    {
+        $this->ingredients = $ingredients;
+    }
+
+    /**
+     * Magic getter for single ingredients
+     *
+     * @param string $method
+     * @param array $args
+     * @return mixed
+     */
+    public function __call(string $method, array $args = null)
+    {
+        return $this->ingredients[$method] ?? null;
+    }
+
+    /**
+     * Improved var_dump output
+     *
+     * @return array
+     */
+    public function __debuginfo(): array
+    {
+        return $this->ingredients;
+    }
+
+    /**
+     * Get a single ingredient by key
+     *
+     * @param string $key
+     * @return mixed
+     */
+    public function __get(string $key)
+    {
+        return $this->ingredients[$key] ?? null;
+    }
+
+    /**
+     * Resolves all ingredient callbacks
+     * and creates a plain array
+     *
+     * @param array $ingredients
+     * @return self
+     */
+    public static function bake(array $ingredients): self
+    {
+        foreach ($ingredients as $name => $ingredient) {
+            if (is_a($ingredient, 'Closure') === true) {
+                $ingredients[$name] = $ingredient($ingredients);
+            }
+        }
+
+        return new static($ingredients);
+    }
+
+    /**
+     * Returns all ingredients as plain array
+     *
+     * @return array
+     */
+    public function toArray(): array
+    {
+        return $this->ingredients;
+    }
+}