<?php

namespace Chill\TaskBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Doctrine\ORM\EntityManager;
use Chill\PersonBundle\Entity\Person;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Chill\TaskBundle\Entity\SingleTask;
use Chill\TaskBundle\Form\SingleTaskType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\FormFactoryInterface;
use Chill\TaskBundle\Security\Authorization\TaskVoter;
use Symfony\Component\Security\Core\Role\Role;
use Chill\MainBundle\Entity\User;
use Chill\PersonBundle\Security\Authorization\PersonVoter;
use Chill\TaskBundle\Repository\SingleTaskRepository;
use Chill\MainBundle\Pagination\PaginatorFactory;

class SingleTaskController extends Controller
{

    
    /**
     * @Route("/{_locale}/task/single-task/new")
     */
    public function newAction(Request $request)
    {
        $personId = $request->query->getInt('person_id', null);
        
        if ($personId === null) {
            return new Response("You must provide a person_id", Response::HTTP_BAD_REQUEST);
        }
        
        $person = $this->getDoctrine()->getManager()
            ->getRepository(Person::class)
            ->find($personId);
        
        if ($person === null) {
            throw $this->createNotFoundException("Invalid person id");
        }
        
        $task = (new SingleTask())
            ->setPerson($person)
            ->setAssignee($this->getUser())
            ->setType('task_default')
            ;
        
        $this->denyAccessUnlessGranted(TaskVoter::CREATE, $task, 'You are not '
            . 'allowed to create this task');
        
        $form = $this->createCreateForm($task);
        
        $form->handleRequest($request);
        
        if ($form->isSubmitted()) {
            if ($form->isValid()) {
                $em = $this->getDoctrine()->getManager();
                $em->persist($task);
                
                $em->flush();

                $this->addFlash('success', "The task is created");
                                
                return $this->redirectToRoute('chill_task_task_list', [
                    'personId' => $task->getPerson()->getId()
                ]);
                
            } else {
                $this->addFlash('error', "This form contains errors");
            }
        }
        
        return $this->render('ChillTaskBundle:SingleTask:new.html.twig', array(
            'form' => $form->createView(),
            'task' => $task
        ));
    }
    
    /**
     * 
     * @param SingleTask $task
     * @return \Symfony\Component\Form\FormInterface
     */
    protected function createCreateForm(SingleTask $task)
    {
        $form = $this->createForm(SingleTaskType::class, $task, [
            'center' => $task->getCenter(),
            'role'   => new Role(TaskVoter::CREATE)
        ]);
        
        $form->add('submit', SubmitType::class);
        
        return $form;
    }
    
    /**
     * @Route(
     *  "/{_locale}/task/task/list/person/{personId}",
     *  name="chill_task_task_list"
     * )
     */
    public function listAction(
        Request $request, 
        Person $personId,
        PaginatorFactory $paginatorFactory
    ) {
        $person = $personId;
        /* @var $taskRepository SingleTaskRepository */
        $taskRepository = $this->get('chill_task.single_task_repository');
        /* @var $viewParams array The parameters for the view */
        $viewParams['person'] = $person;
        
        // collect parameters for filter
        $params['person'] = $person;
        
        if ($request->query->has('date_status')) {
            $statuses = $request->query->get('date_status');
            $singleStatus = count($statuses) === 1;
            // check for invalid parameters
            $diff = \array_diff(
                $statuses, 
                SingleTaskRepository::DATE_STATUSES)
                ;
            
            if (count($diff) > 0) {
                return new Response(
                    'date_status not allowed: '. \implode(', ', $diff), 
                     Response::HTTP_BAD_REQUEST
                    );
            }
        }
            
        foreach(SingleTaskRepository::DATE_STATUSES as $type) {
            if($request->query->has('date_status') 
                && FALSE === \in_array($type, $statuses ?? [])) {
                continue;
            }
            
            $params['date_status'] = $type;
            $count = $taskRepository
                ->countByParameters($params, $this->getUser())
                ;
            $paginator = $paginatorFactory->create($count);
            $viewParams['single_task_'.$type.'_count'] = $count;
            $viewParams['single_task_'.$type.'_paginator'] = $paginator;
            $viewParams['single_task_'.$type.'_tasks'] = $taskRepository
                ->findByParameters($params, $this->getUser(), 
                    $singleStatus ? $paginator->getCurrentPage()->getFirstItemNumber() : 0, 
                    $singleStatus ? $paginator->getItemsPerPage() : 10)
                ;
        }
        
        return $this->render('ChillTaskBundle:Task:index.html.twig', $viewParams);
    }
    
    protected function getPersonParam(Request $request, EntityManagerInterface $em)
    {
        $person = $em->getRepository(Person::class)
            ->find($request->query->getInt('person_id'))
            ;

        if (NULL === $person) {
            throw $this->createNotFoundException('person not found');
        }

        $this->denyAccessUnlessGranted(PersonVoter::SEE, $person, "You are "
            . "not allowed to see this person");

        return $person;
    }
    
    protected function getUserParam(Request $request, EntityManagerInterface $em)
    {
        $user = $em->getRepository(User::class)
            ->find($request->query->getInt('user_id'))
            ;

        if (NULL === $user) {
            throw $this->createNotFoundException('user not found');
        }

        return $user;
    }

}