<?php
require 'vendor/autoload.php';
use PHPMailer\PHPMailer\Exception;
use PHPMailer\PHPMailer\PHPMailer;

define('PORTAL_ID', '14537193');
define('FORM_ID', '69a9830f-099c-4b5a-9b99-28f52e17becf');

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    logger('Input: ' . json_encode($_POST));

    $hubspot_helper = new Hubspothelper();
    $hub_res = $hubspot_helper->post_form($_POST);

    logger('Hubspot reply:' . json_encode($hub_res));

    $res = sendMail($_POST);
    logger($res);

    $hub_res['body'] = json_decode($hub_res['body']);
    
    header('Content-Type: application/json');
    $data = [];
    if (@$hub_res['body']->inlineMessage) {
        $data['success'] = $hub_res['body']->inlineMessage;
    } else {
        $data['error'] = 'Invalid input, check your email or phone number';
    }
    echo json_encode($data);
    /* header("Location: app.html"); */
}

function logger($text)
{
    if (!is_dir('logs')) {
        mkdir('logs');
    }
    $text = date('c') . '| ' . $text;
    @file_put_contents('logs/' . date('Ymd') . '.log', $text . "\n", FILE_APPEND);
}

class Hubspothelper
{
    private $url = 'https://api.hsforms.com/submissions/v3/integration/submit/%s/%s';
    private $consent_text = "By continuing you agree to the Terms and Conditions and Privacy Policies.";
    private $filter_keys = [];
    public $send_ip = true;
    public $send_page_url = true;
    public $send_hubspotkey = true;
    public function set_key_filer($key)
    {
        $this->filter_keys[] = $key;
    }
    public function set_consent_text($str)
    {
        $this->consent_text = $str;
    }
    public function post_form($data)
    {
        $str = $this->decrypt_b64();
        $url = vsprintf($this->url, $str);
        return $this->curl_post($url, $this->create_json($data));
    }
    private function create_json($arr)
    {
        $json_data = [];
        if (isset($arr['terms'])) {
            $json_data['legalConsentOptions'] = [
                'consent' => [
                    'consentToProcess' => true,
                    'text' => $this->consent_text,
                ],
            ];
            unset($arr['terms']);
        }
        $json_data['fields'] = $this->array_to_fields($arr);

        $json_data['context'] = [];
        if ($this->send_ip) {
            $json_data['context']['ipAddress'] = $this->get_ip();
        }
        if ($this->send_page_url) {
            $json_data['context']['pageUri'] = $_SERVER['HTTP_REFERER'];
        }
        if ($this->send_hubspotkey && isset($_COOKIE['hubspotutk'])) {
            $json_data['context']['hutk'] = $_COOKIE['hubspotutk'];
        }
        if (empty($json_data['context'])) {
            unset($json_data['context']);
        }
        return $json_data;
    }
    private function array_to_fields($arr)
    {
        $data = [];
        foreach ($arr as $key => $value) {
            if (in_array($key, $this->filter_keys)) {
                continue;
            }
            $data[] = ['name' => $key, 'value' => $value];
        }
        return $data;
    }
    private function curl_post($url, $data)
    {
        $result = null;
        try {
            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
            $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            $result = curl_exec($ch);
            curl_close($ch);
        } catch (\Throwable $e) {
            echo $e->getMessage();die;
            error_log($e->getMessage());
        }
        return [
            'code' => $httpcode,
            'body' => $result,
        ];
    }
    private function decrypt_b64()
    {
        return [
            PORTAL_ID,
            FORM_ID,
        ];
    }
    private function get_ip()
    {
        $ipaddress = '';
        if (getenv('HTTP_CLIENT_IP')) {
            $ipaddress = getenv('HTTP_CLIENT_IP');
        } else if (getenv('HTTP_X_FORWARDED_FOR')) {
            $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
        } else if (getenv('HTTP_X_FORWARDED')) {
            $ipaddress = getenv('HTTP_X_FORWARDED');
        } else if (getenv('HTTP_FORWARDED_FOR')) {
            $ipaddress = getenv('HTTP_FORWARDED_FOR');
        } else if (getenv('HTTP_FORWARDED')) {
            $ipaddress = getenv('HTTP_FORWARDED');
        } else if (getenv('REMOTE_ADDR')) {
            $ipaddress = getenv('REMOTE_ADDR');
        } else {
            $ipaddress = 'UNKNOWN';
        }

        return $ipaddress;
    }
}

function sendMail($post)
{
    $mail = new PHPMailer(true);
    try {
        //Server settings
        //$mail->SMTPDebug = SMTP::DEBUG_SERVER; //Enable verbose debug output
        $mail->isSMTP(); //Send using SMTP
        $mail->Host = 'smtp.gmail.com'; //Set the SMTP server to send through
        $mail->SMTPAuth = true; //Enable SMTP authentication
        $mail->Username = 'dev@appedology.com'; //SMTP username
        $mail->Password = '!@2021Pakist@nMAY@!';//'Pakist@n123!!@@'; //SMTP password
        $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS; //Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
        $mail->Port = 587; //TCP port to connect to, use 465 for `PHPMailer::ENCRYPTION_SMTPS` above

        //Recipients
        $mail->setFrom('dev@appedology.com');
        $mail->addAddress('presale@appedology.com'); //Add a recipient

        $body = '';

        foreach ($post as $key => $value) {
            $body .= '<p><b>' . $key . '</b>: ' . $value . '</p>';
        }

        //Content
        $mail->isHTML(true); //Set email format to HTML
        $mail->Subject = 'New lead submission on Appedology Landing Page';
        $mail->Body = $body;

        $mail->send();
        return 'Message has been sent';
    } catch (Exception $e) {
        return "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
    }
}