form dependency

sources/Controller/Form/Dependency/FormDependencyDataRegister.php

@@ -0,0 +1,104 @@
+<?php
+
+namespace Combodo\iTop\Controller\Form\Dependency;
+
+use Symfony\Component\Form\FormInterface;
+
+
+/**
+ * Store the dependencies data for a form.
+ */
+class FormDependencyDataRegister
+{
+	/** @var array data */
+	private array $data = [];
+
+	/**
+	 * Set a value.
+	 *
+	 * @param array $path
+	 * @param mixed|null $value
+	 *
+	 * @return void
+	 */
+	public function setPathValue(array $path, mixed $value = null): void
+	{
+		$key = $path[0];
+
+		if(count($path) === 1) {
+			$this->data[$key] = $value;
+		}
+		else{
+			if(!array_key_exists($key, $this->data) || $this->data[$key] === null){
+				$this->data[$key] = [];
+			}
+			array_shift($path);
+			$this->setPathValue($path, $value);
+		}
+	}
+
+	/**
+	 * Get a value.
+	 *
+	 * @param array $path
+	 *
+	 * @return mixed
+	 * @throws MissingDataException
+	 */
+	public function getPathValue(array $path): mixed
+	{
+		$key = $path[0];
+
+		if(!array_key_exists($key, $this->data)){
+			throw new MissingDataException("data $key doesn't exists");
+		}
+
+		if(count($path) === 1) {
+			return $this->data[$key];
+		}
+		else{
+			array_shift($path);
+			return $this->getPathValue($path);
+		}
+	}
+
+	/**
+	 * Get dependencies data.
+	 *
+	 * @param FormInterface $form
+	 * @param array $bounds
+	 *
+	 * @return array
+	 * @throws IncompleteDependenciesException
+	 */
+	public function getDependenciesData(FormInterface $form, array $bounds): array
+	{
+		$result = [];
+
+		foreach($bounds as $boundElement){
+
+			try{
+				$value = $this->getPathValue($boundElement['form']['path']);
+			}
+			catch(MissingDataException){
+				throw new IncompleteDependenciesException();
+			}
+
+			$result[$boundElement['bound']['slot']] = [
+				'bound_name' => $boundElement['form']['name'],
+				'value' => $value
+			];
+
+		}
+
+		return $result;
+	}
+
+	/**
+	 * @return array
+	 */
+	public function getData(): array
+	{
+		return $this->data;
+	}
+}