<?php

namespace App\Flag\Controller;

use App\Flag\FlagAccessor;
use App\Flag\FlagEnum;
use Psr\Cache\CacheItemPoolInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Exception\JsonException;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class FlagController extends AbstractController
{
    #[Route('/flag/{flagName}', name: 'flag_update', methods: ['PUT'])]
    public function updateFlag(CacheItemPoolInterface $cache, Request $request, string $flagName): Response
    {
        try {
            FlagEnum::from($flagName);
            $flagValue = \json_decode($request->getContent(), true, flags: JSON_THROW_ON_ERROR)[FlagAccessor::FLAG_VALUE];
        } catch (\ValueError $e) {
            throw new \InvalidArgumentException('invalid flag name provided');
        } catch (JsonException $e) {
            throw new \InvalidArgumentException('invalid json format');
        }

        $flag = $cache->getItem($flagName);
        $flag->set($flagValue);
        $cache->save($flag);

        return new JsonResponse(
            [\sprintf('flag %s has been %s.', $flagName, $flagValue ? 'enabled' : 'disabled')]
        );
    }
}