Tolak Data IMB

public function tolakdata_post()
    {
        $username = trim($this->post('username'));
        $level    = $this->post('level');
        $id       = $this->post('id');
        $alasan   = $this->post('alasan');

        if ($username == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Username Kosong.',
            ];
        } elseif ($id == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'ID Permohonan Tidak Boleh Kosong.',
            ];
        } elseif ($level != 'Ka. Seksi') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Level Anda tidak Berhak Melakukan Proses ini.',
            ];
        } elseif ($alasan == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Alasan Penolakan Boleh Kosong.',
            ];
        } else {
            $data = array(
                'sts_proses'          => 11, // Tolak
                'validasi_kasie'      => 'Tidak Valid',
                'alasan_kasie'        => $alasan,
                'tgl_validasi_kasie'  => date('Y-m-d'),
                'user_validasi'       => $username,
                'pemohon_date_update' => date('Y-m-d'),
                'pemohon_time_update' => date('Y-m-d H:i:s'),
            );

            $this->db->where('id', $id);
            $this->db->update('c39_imb_pemohon', $data);

            // Insert ke Notifikasi Member
            $dataijin  = $this->db->get_where('v_imb_dpm', array('id' => $id))->row();
            $pesan     = 'Permohonan IMB Anda No. ' . $dataijin->no_register . '. Status : Di Tolak Ka. Seksi';
            $dataNotif = array(
                'user_pengirim'          => $username,
                'user_username'          => $dataijin->user_username,
                'id'                     => $id,
                'notifikasi_no_register' => $dataijin->no_register,
                'notifikasi_date'        => date('Y-m-d'),
                'notifikasi_desc'        => $pesan,
                'notifikasi_level'       => 'Member',
            );

            $this->db->insert('bpmppt_notifikasi', $dataNotif);
            sendNotification($dataijin->device_id, $pesan);

            // Insert ke Notifikasi Petugas
            $pesanPetugas    = 'Permohonan IMB No. ' . $dataijin->no_register . ' Atas Nama : ' . $dataijin->nama . '. Status : Di Tolak Ka. Seksi';
            $dataNotifProses = array(
                'user_pengirim'          => $username,
                'user_username'          => $dataijin->user_username,
                'id'                     => $id,
                'notifikasi_no_register' => $dataijin->no_register,
                'notifikasi_date'        => date('Y-m-d'),
                'notifikasi_desc'        => $pesanPetugas,
                'notifikasi_level'       => 'Ka. Bidang',
            );

            $this->db->insert('bpmppt_notifikasi', $dataNotifProses);

            // Send Notifikasi ke Petugas di Atasnya
            $listUser = $this->db->get_where('bpmppt_users', array('device_id !=' => '', 'user_level' => $petugas))->result();
            if (count($listUser) > 0) {
                foreach ($listUser as $r) {
                    sendNotification($r->device_id, $pesanPetugas);
                }
            }

            // Email ke Pemohon
            $nama         = trim($this->post('username'));
            $namapemohon  = trim(ucwords(strtolower($dataijin->user_name)));
            $footer       = $this->ticket_model->select_footer()->row();
            $dataFooter   = $footer->content_desc;
            $sender_email = 'sipto.bpmppt@gmail.com';
            $sender_name  = 'DPM PTSP Kudus';
            $noreg        = $dataijin->no_register;
            $email        = $dataijin->user_email;
            $pesan        = $this->input->post('alasan', 'true');
            $subject      = "Status Permohonan Izin";
            $message      = "Kepada Yth. " . $namapemohon . "<br>
                        No. Register : " . $noreg . "<br>
                        <p><b>Permohonan Anda DITOLAK.</b><br /><br />" . $pesan . "</p>
                        <br>
                        <p>
                        Terima Kasih<br><br>
                        Hormat Kami,<br>
                        " . $nama . "<br>
                        " . $level . "<br><br>" . $dataFooter . "</p>";

            $this->load->library('email');
            $this->email->set_mailtype("html");
            $this->email->from($sender_email, $sender_name);
            $this->email->to($email);
            $this->email->subject($subject);
            $this->email->message($message);
            $this->email->send()

            $response = [
                'resp_error' => false,
                'resp_msg'   => 'Tolak Permohonan Berhasil.',
            ];
        }

        $this->response($response, 200);
    }