<?php
include "../koneksi.php";

$NPM                = $_POST["NPM"];
$Nama_Mahasiswa     = $_POST["Nama_Mahasiswa"];

$Tempat_Lahir       = $_POST["Tempat_Lahir"];
$Tanggal_Lahir      = $_POST["Tanggal_Lahir"];
$JK                 = $_POST["JK"];
$Alamat             = $_POST["Alamat"];
$IPK                = $_POST["IPK"];

$Email              = $_POST["Email"];
$No_Telp            = $_POST["No_Telp"];
$Kode_Jurusan_Mhs   = $_POST["Kode_Jurusan_Mhs"];

$foto = $_FILES['foto']['name'];
$tmp = $_FILES['foto']['tmp_name'];

// Rename nama fotonya dengan menambahkan tanggal dan jam upload
$fotobaru = date('dmYHis').$foto;

// Set path folder tempat menyimpan fotonya
$path = "../upload/".$fotobaru;

// Cek apakah gambar berhasil diupload atau tidak
if(move_uploaded_file($tmp, $path)){ // Jika proses upload sukses
    // Proses simpan ke Database
    if ($add = mysqli_query($konek, "INSERT INTO mahasiswa (npm, nama_mahasiswa, tempat_lahir, ipk,
                                    tanggal_lahir, jenis_kelamin, alamat, email, no_telp, jurusan, gambar_filename
                                    ) VALUES
                                ('$NPM', '$Nama_Mahasiswa','$Tempat_Lahir','$IPK',
                                '$Tanggal_Lahir', '$JK', '$Alamat', '$Email','$No_Telp',
                                '$Kode_Jurusan_Mhs', '$fotobaru')")){

        $passwordRandom = randomPassword();
        $hashPasswordRandom = md5($passwordRandom);

        $createUser = mysqli_query($konek, "INSERT INTO user (username, password, password_asli, role_id, status_kirim_email)
                            VALUES ('$NPM', '$hashPasswordRandom','$passwordRandom','5', '0')");

        if($createUser)
        {
            kirimPassword($NPM , $passwordRandom, $Email);
            header("Location: mahasiswa.php");
        exit();
    }
    }
        die ("Terdapat kesalahan : ". mysqli_error($konek));

}else{ // Jika proses upload gagal
    $response = array(
        'status'=>'gagal', // Set status
        'pesan'=>'Gambar gagal untuk diupload', // Set pesan
    );

}


function randomPassword() {
    $alphabet = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
    $pass = array(); //remember to declare $pass as an array
    $alphaLength = strlen($alphabet) - 1; //put the length -1 in cache
    for ($i = 0; $i < 8; $i++) {
        $n = rand(0, $alphaLength);
        $pass[] = $alphabet[$n];
    }
    return implode($pass); //turn the array into a string
}

function kirimPassword($username, $password, $email){



    $query = "SELECT * FROM rsa ORDER BY id DESC LIMIT 1";
    $result = mysqli_query($konek, $query);

    $n = "";
    $e = "";
    $d = "";
    $hasil ="";

    if($result){
      while($row = mysqli_fetch_array($result)){
        $n = $row['n'];
        $e = $row['e'];
        $d = $row['d'];

        for($i=0;$i<strlen($password);++$i){
            //rumus enkripsi <enkripsi>=<pesan>^<e>mod<n>
            $hasil.=gmp_strval(gmp_mod(gmp_pow(ord($password[$i]),$e),$n));
            //antar tiap karakter dipisahkan dengan "."
            if($i!=strlen($password)-1){
                $hasil.=".";
            }
          }
      }
    }


    $mail = new PHPMailer;
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
    $mail->Username = '...@gmail.com';                 // SMTP username
    $mail->Password = '...';                           // SMTP password
    $mail->SMTPSecure = 'ssl';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 465;                                    // TCP port to connect to
    $mail->setFrom('ambotang7277@gmail.com', 'Panitia Pemilihan Raya Mahasiswa');
    $mail->addAddress($email);               // Name is optional
 //   $mail->addReplyTo('ambotang7277@gmail.com', 'Information');
    $mail->isHTML(true);                                  // Set email format to HTML
    $mail->Subject = 'Akun Login User E-Voting';
    $mail->AddEmbeddedImage('../aset/foto/univ2.jpg', 'logo2');
    $mail->AddEmbeddedImage('../aset/foto/univ1.jpg', 'logo1');
    $mail->Body    = "<img src='cid:logo1' width='100' height='100'/> <img src='cid:logo2' width='100' height='100'/><br/><br/>
    Username Anda :'.$username.' Password Anda : '.$hasil.
                        '<br/> Silakan masukkan password di menu RSA";
    $mail->AltBody = 'Silakan didecrypt di alamat voting menu RSA';

    if(!$mail->send()) {
        $error = $mail->ErrorInfo;
        echo ("<script LANGUAGE='JavaScript'>
        window.alert('Email Tidak Terkirim');
        window.location.href='user.php';
        </script>");
    } else {
        echo ("<script LANGUAGE='JavaScript'>
        window.alert('Email Terkirim');
        window.location.href='user.php';
        </script>");
    }


    }



?>