<?php
namespace App\Controller;

use App\Form\SafetyQuizType;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Yaml\Yaml;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Psr\Log\LoggerInterface;

use function PHPUnit\Framework\containsIdentical;

class SafetyController extends AbstractController
{
    #[Route('/training/safety', name: 'safetyHome')]
    public function Index() : Response
    {
        $contentFile = Yaml::parseFile('../config/safetyLinks.yaml', 2, 2, Yaml::PARSE_OBJECT_FOR_MAP);
        return $this->render('Training/Safety/safetyHome.html.twig',['content' => $contentFile]);
    }
    #[Route('/training/safety/quiz')]
    public function Quiz(Request $request, LoggerInterface $log)
    {
        $form = $this->createForm(SafetyQuizType::class);
        $form->handleRequest($request);
        if($form->isSubmitted() && $form->isValid())
        {
            //TODO: Process quiz submissions. Calculate score & return a printable results page
            $data = $form->getData();
            $testerName = $data['Name'];
            unset($data['Name']);
            $correctAnswers = 0;
            foreach($data as $question)
            {
                if($question)
                {
                    $correctAnswers++;
                }
            }
            $log->Debug($testerName . ' quiz answers correct: ' . $correctAnswers);
            return $this->render('Training/Safety/quizResults.html.twig', ['testerName'=>$testerName,
                'correctAnswers'=>$correctAnswers, 'totalAnswers'=>count($data)]);
        }
        return $this->render('Training/Safety/SafetyQuiz.html.twig',['quiz'=>$form]);
    }
    #[Route('/Training/Safety/Topics/{topic?}')]
    public function Topics(?string $topic, LoggerInterface $log) : Response
    {
        //We want to show the safety homepage if this is blank
        if($topic == null)
        {
            return $this->redirectToRoute('safetyHome');
        }

        //We need to get the previous and next topics for nav buttons
        //FEATURING: Regret for not having mapped this YAML file to a data model that would have saved myself a lot of trouble and spaghetti
        $contentFile = Yaml::parseFile('../config/safetyLinks.yaml', 2, 2, Yaml::PARSE_OBJECT_FOR_MAP);
        $previousTopic = $nextTopic = ""; //declare ahead of time for scoping

        $arrayKeys = array_keys($contentFile['Cards']);
        foreach($arrayKeys as $key)
        {
            $card = $contentFile['Cards'][$key];
            for($i = 0; $i < count($card); $i++)
            {
                $entry = $card[$i];
                $cardIndex = array_search($key, $arrayKeys);
                if($entry['url'] == $topic)
                {
                    //Assign Previous Topic
                    if($i > 0)
                    {
                        $previousTopic = $contentFile['Cards'][$arrayKeys[$cardIndex]][$i-1];
                    }
                    else  if($cardIndex > 0) //there's a previous card, use the last entry in it
                    {
                        //NOTE: Should be fine to use end, at this point we shouldn't care about the array's internal pointer, we're done iterating
                        $previousTopic = end($contentFile['Cards'][$arrayKeys[$cardIndex-1]]);
                    }

                    //Assign Next Topic
                    if($i < count($card)-1) //Next topic should be within the same card
                    {
                        $nextTopic = $contentFile['Cards'][$arrayKeys[$cardIndex]][$i+1];
                    }
                    else if($cardIndex < count($contentFile['Cards'])-1) //Next topic is not in same card, or does not exist
                    {
                        $nextTopic = $contentFile['Cards'][$arrayKeys[$cardIndex+1]][0]; //Set to first entry in next card
                    }
                    break 2; //Got what we needed, break out of both for loops
                }
            }
        }
            
        $topic = strtolower($topic);
        //TODO: Insert back button
        $navButtonData = ['previous'=> $previousTopic, 'next' => $nextTopic];
        $contents = $this->render('Training/Safety/Topics/'.$topic.".html.twig");
        $navButtons = $this->render('Training/Safety/navButtons.html.twig',$navButtonData);
        return new Response($contents . $navButtons);
    }
}