<?php

namespace rednaoeasycalculationforms\core\Managers\FormManager\Fields;

use Exception;
use rednaoeasycalculationforms\core\db\SettingsRepository;
use rednaoeasycalculationforms\core\Exception\FriendlyException;
use rednaoeasycalculationforms\core\Integration\PostIntegration;

class FBRecaptcha extends FBFieldBase
{
    public function GetLineItems()
    {
        return null;
    }

    public function PrepareForSerialization()
    {
        if($this->Entry == null)
        {
            throw new FriendlyException('Invalid Recaptcha Verification', 'A recaptcha value was not submitted');
        }

        $response = $this->Entry->Value->Response;
        $this->Entry = null;

        $settingsRepository = new SettingsRepository($this->Loader);
        $recaptchaSettings = $settingsRepository->GetRecaptchaSettings();

        $captcha = array();
        $captcha['response'] = $response;
        $captcha["remoteip"] = $_SERVER['REMOTE_ADDR'];
        $captcha["secret"] = $recaptchaSettings->SecretKey;;
        $args = Array();
        $args['headers'] = Array
        (
            'Content-Type' => 'application/x-www-form-urlencoded;',
            'Method' => 'Post'
        );
        $args['body'] = $captcha;

        $postIntegration = new PostIntegration($this->Loader);
        if($recaptchaSettings->Type == 'hcaptcha')
            $url = 'https://hcaptcha.com/siteverify';
        else
            $url = 'https://www.google.com/recaptcha/api/siteverify';
        $res = $postIntegration->RemotePost($url, $args);
        $response = json_decode($res["body"], true);

        if($recaptchaSettings->Type == 'scoring')
        {
            if(\floatval($response['score']) <= \floatval($recaptchaSettings->MinimumScore))
            {
                throw new FriendlyException('Invalid Recaptcha Verification', 'The submission had an score of ' . $response['score'] . ' and the minimum is ' . $recaptchaSettings->MinimumScore);

            }
        }

        if($response["success"] === true)
            return null;

        if($response["error-codes"][0] == "invalid-input-secret")
            throw new FriendlyException('Invalid Recaptcha Verification', 'Invalid secret key');

        throw new FriendlyException('Invalid Recaptcha Verification', 'The recaptcha probably expired');
    }

}