Frontend: display and behavior of pickUserOrMe form field

src/Bundle/ChillMainBundle/Form/Type/PickUserOrMeDynamicType.php

@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Form\Type;
+
+use Chill\MainBundle\Entity\User;
+use Chill\MainBundle\Form\Type\DataTransformer\EntityToJsonTransformer;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+use Symfony\Component\Serializer\SerializerInterface;
+
+/**
+ * Pick user dymically, using vuejs module "AddPerson".
+ *
+ * Possible options:
+ *
+ * - `multiple`: pick one or more users
+ * - `suggested`: a list of suggested users
+ * - `suggest_myself`: append the current user to the list of suggested
+ * - `as_id`: only the id will be set in the returned data
+ * - `submit_on_adding_new_entity`: the browser will immediately submit the form when new users are checked
+ */
+class PickUserOrMeDynamicType extends AbstractType
+{
+    public function __construct(
+        private readonly DenormalizerInterface $denormalizer,
+        private readonly SerializerInterface $serializer,
+        private readonly NormalizerInterface $normalizer,
+    ) {}
+
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->addViewTransformer(new EntityToJsonTransformer($this->denormalizer, $this->serializer, $options['multiple'], 'user'));
+    }
+
+    public function buildView(FormView $view, FormInterface $form, array $options)
+    {
+        $view->vars['multiple'] = $options['multiple'];
+        $view->vars['types'] = ['user'];
+        $view->vars['uniqid'] = uniqid('pick_user_or_me_dyn');
+        $view->vars['suggested'] = [];
+        $view->vars['as_id'] = true === $options['as_id'] ? '1' : '0';
+        $view->vars['submit_on_adding_new_entity'] = true === $options['submit_on_adding_new_entity'] ? '1' : '0';
+
+        foreach ($options['suggested'] as $user) {
+            $view->vars['suggested'][] = $this->normalizer->normalize($user, 'json', ['groups' => 'read']);
+        }
+        //        $user = /* should come from context */ $options['context'];
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver
+            ->setDefault('multiple', false)
+            ->setAllowedTypes('multiple', ['bool'])
+            ->setDefault('compound', false)
+            ->setDefault('suggested', [])
+            // if set to true, only the id will be set inside the content. The denormalization will not work.
+            ->setDefault('as_id', false)
+            ->setAllowedTypes('as_id', ['bool'])
+            ->setDefault('submit_on_adding_new_entity', false)
+            ->setAllowedTypes('submit_on_adding_new_entity', ['bool']);
+    }
+
+    public function getBlockPrefix()
+    {
+        return 'pick_entity_dynamic';
+    }
+}