<?php

$to = 'example@gmail.com';
$errors = array();
$method = $_SERVER['REQUEST_METHOD'];
$c = true;

if ( $method === 'POST' ) {

	$project_name = trim($_POST["project_name"]);
	$form_subject = trim($_POST["form_subject"]);

	foreach ( $_POST as $key => $value ) {
		if ( $value != "" && $key != "project_name" && $key != "form_subject" ) {
			$message .= "
			" . ( ($c = !$c) ? '<tr>':'<tr style="background-color: #f8f8f8;">' ) . "
				<td style='padding: 10px; border: #e9e9e9 1px solid;'><b>$key</b></td>
				<td style='padding: 10px; border: #e9e9e9 1px solid;'>$value</td>
			</tr>
			";
		}
	}
} else if ( $method === 'GET' ) {

	$project_name = trim($_GET["project_name"]);
	$form_subject = trim($_GET["form_subject"]);

	foreach ( $_GET as $key => $value ) {
			if ( $value != "" && $key != "project_name" && $key != "form_subject" ) {
				$message .= "
				" . ( ($c = !$c) ? '<tr>':'<tr style="background-color: #f8f8f8;">' ) . "
				<td style='padding: 10px; border: #e9e9e9 1px solid;'><b>$key</b></td>
				<td style='padding: 10px; border: #e9e9e9 1px solid;'>$value</td>
			</tr>
			";
		}
	}
}

$message = "<table style='width: 100%;'>$message</table>";

function adopt($text) {
	return '=?UTF-8?B?'.Base64_encode($text).'?=';
}

if ( isset( $_FILES["file"]) ) {


	$file_name = $_FILES["file"]["name"];
	$file_size =$_FILES["file"]["size"];
	$file_tmp =$_FILES["file"]["tmp_name"];
	$file_type=$_FILES["file"]["type"];
	$file_ext=strtolower(end(explode(".",$_FILES["file"]["name"])));

	$expensions= array("jpeg","jpg","png", "doc", "docx", "pdf");

	if(in_array($file_ext,$expensions) === false){
		$errors["status"] = "error";
		$errors["text"]= "Выберите файл jpg, png, pdf или doc";
	}
	else if ( !empty( $_FILES['file']['tmp_name'] ) and $_FILES['file']['error'] == 0 ) {
		$filepath = $_FILES['file']['tmp_name'];
		$filename = $_FILES['file']['name'];
	} else {
		$filepath = '';
		$filename = '';
	}

}

if(empty($errors)){
	send_mail($to, $message, $project_name, $form_subject, $filepath, $filename);
	$errors["status"] = "success";
	$errors["text"] = "Заявка отправлена!";
}

// Вспомогательная функция для отправки почтового сообщения с вложением
function send_mail($to, $message, $project_name, $form_subject, $filepath, $filename)
{

	$boundary = "--".md5(uniqid(time())); // генерируем разделитель
	$headers = "From: ".adopt($project_name)." <".$to.">" . PHP_EOL . "Reply-To: ".$to."" . PHP_EOL;
	$headers .= "MIME-Version: 1.0\r\n";
	$headers .="Content-Type: multipart/mixed; boundary=\"".$boundary."\"\r\n";

	$multipart = "--".$boundary."\r\n";
	$multipart .= "Content-type: text/html; charset=\"utf-8\"\r\n";
	$multipart .= "Content-Transfer-Encoding: quoted-printable\r\n\r\n";

	$message = $message."\r\n\r\n";

	$multipart .= $message;

	$file = '';
	if ( !empty( $filepath ) ) {
		$fp = fopen($filepath, "r");
		if ( $fp ) {
			$content = fread($fp, filesize($filepath));
			fclose($fp);
			$file .= "--".$boundary."\r\n";
			$file .= "Content-Type: application/octet-stream\r\n";
			$file .= "Content-Transfer-Encoding: base64\r\n";
			$file .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
			$file .= chunk_split(base64_encode($content))."\r\n";
		}
	}
	$multipart .= $file."--".$boundary."--\r\n";
	mail($to, adopt($form_subject), $multipart, $headers);
}

echo json_encode($errors);
exit;

?>