<?php
//Show errors
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

var_dump($_POST);

//Load Required Components
require_once 'src/recaptcha_autoload.php';
require_once "functions.php";
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
require 'src/Exception.php';
require 'src/PHPMailer.php';
require 'src/SMTP.php';

function validate($formData)
{

	// Initiate Arrays

	$errorsMSG = array(); // array to hold validation errors
	$data = array(); // array to pass back data k:not needed

	$firstName = $formData['firstName'] ?? '';
	$lastName = $formData['lastName'];
	$companyName = $formData['companyName'];
	$companyAddress = $formData['companyAddress'];
	$emailAddress = $formData['emailAddress'];
	$message = $formData['message'];
	$pname_exp = '/^[a-zA-Z0-9\_]{2,20}/';

	// Validate firstName

	if (empty($firstName)) {
		$errorsMSG['firstName'] = 'First Name is required.';
	}

	// Check RegEx for Personal Name

	if (!preg_match($pname_exp, $firstName)) {
		$errorsMSG['firstName'] = 'First Name is required.';
	}

	// Validate lastName

	if (empty($lastName)) {
		$errorsMSG['lastName'] = 'Last Name is required.';
	}

	// Check RegEx for Personal Name

	if (!preg_match($pname_exp, $lastName)) {
		$errorsMSG['firstName'] = 'Last Name is required.';
	}

	// Validate companyName

	if (empty($companyName)) {
		$errorsMSG['companyName'] = 'Company Name is required.';
	}

	// Validate companyAddress

	if (empty($companyAddress)) {
		$errorsMSG['companyAddress'] = 'Company Address is required.';
	}

	// Validate emailAddress

	if (empty($emailAddress)) {
		$errorsMSG['emailAddress'] = 'Email Address is required.';
	}

	// Check if emailAddress is a valid email address

	if (!filter_var($emailAddress, FILTER_VALIDATE_EMAIL)) {
		$errorsMSG['emailAddress'] = 'Email address is not valid.';
	}

	// Validate message

	if (empty($message)) {
		$errorsMSG['message'] = 'Message is required.';
	}

    $captcha = checkCaptcha($formData['g-recaptcha-response']);
    if(!$captcha['isSuccess']){
        $errorsMSG ['captcha'] = $captcha['errorCodes'];
    }
    return $errorsMSG;

//Send Errors
		if ( ! empty($errorsMSG)) {

        // if there are items in our errors array, return those errors
        $data['success'] = false;
        $data['errors']  = $errorsMSG;
    }

		echo json_encode($data);

}

// [
//	    'isSuccess' =>  bool,
//	    'errorCodes' => k: actually IDK :)
//	]

function checkCaptcha($g_recaptcha_response)
{
	$recaptcha_secret_key = 'SECRET_PASSWORD';
//	$recaptcha = new ReCaptchaReCaptcha($recaptcha_secret_key, new ReCaptchaRequestMethodCurlPost());
	$recaptcha = new \ReCaptcha\ReCaptcha($recaptcha_secret_key);
	$resp = $recaptcha->verify($g_recaptcha_response, $_SERVER['REMOTE_ADDR']);
	return [
	    'isSuccess' =>  $resp->isSuccess(),
	    'errorCodes' => $resp->getErrorCodes(),
	    ];
}

function sendMail($formData)
{
	$mail = new PHPMailer(true); // Passing `true` enables exceptions
	// Server settings

	$mail->SMTPDebug = 2; // Enable verbose debug output
	$mail->isSMTP(); // Set mailer to use SMTP
	$mail->Host = 'smtp.server.com'; // Specify main and backup SMTP servers
	$mail->SMTPAuth = true; // Enable SMTP authentication
	$mail->Username = 'user@server.com'; // SMTP username
	$mail->Password = 'SECRET_PASSWORD'; // SMTP password
	$mail->SMTPSecure = 'ssl'; // Enable TLS encryption, `ssl` also accepted
	$mail->Port = 465; // TCP port to connect to

	// Recipients

	$mail->setFrom('user@server.com', 'Mailer');
	$mail->addAddress('user@server.com', 'Joe User'); // Add a recipient

	// Content

	$mail->isHTML(true); // Set email format to HTML
	$mail->Subject = 'New Message from Contact Form';

	// prepare email body

	$body_message = "";
	$body_message.= "Sender IP: " . get_client_ip() . "<br />";

	// @todo: make the other rows the same way, i.e. $formData['key'];

	$body_message.= "First Name: " . $formData['firstName'] . "<br />";
	$body_message.= "Last Name: " . $formData['lastName'] . "<br />";
	$body_message.= "Company Name: " . $formData['companyName'] . "<br />";
	$body_message.= "Company Address: " . $formData['companyAddress'] . "<br />";
	$body_message.= "City: " . $formData['city'] . "<br />";
	//$body_message.= "State: " . $state . "<br />";
	$body_message.= "Sender email: " . $formData['emailAddress'] . "<br />";
//	$body_message.= "Sender Phone: " . $formData['phoneNumber'] . "<br />";
	$body_message.= "\n\n" . $formData['message'];
	$mail->Body = $body_message;
	$mail->send();
}

/////////////////////////////////////////////////
// process

//this will be our whole response (jsoned later)
$response = [
    //we'll change these later, possibly:
    'success' => false,
    'errors' => [],
    'message' => 'There has been an issue sending your message',//could be an "OK" error message as well, depends on the 'success' key.
];

// Copy $_POST to $formData
$formData = $_POST;

// mock / change $formData if needed (for tests etc)
// $formData['blah'] = 'bleh';


//validate
$errors = validate($formData);

if(!empty($errors)){
   $response['success']  = false;
   $response['errors']  = $errors;

}else {//it's ok
    //send it
    try{
        sendMail($formData);
        //if we are here, then everything theoretically went fine.
        $response['success'] = true;
        $response['message'] = 'OK';
    }
	catch(Exception $e) {
		// @todo - in javascript, in the if ( ! data.success) ....  do something about the
		$response['success']  = false;
		$response['message'] = 'There has been an issue sending your message';

	}

}

echo json_encode($response);
exit;

?>