Jumlah Notifikasi Informasi

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

        if ($username == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Username kosong.',
            ];
        } elseif ($level == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Level tidak diketahui.',
            ];
        } else {
            if ($level == 'Member') {
                $this->db->select('count(notifikasi_id) as jumlah');
                $this->db->from('lemlit_notifikasi');
                $this->db->where('notifikasi_status', 1);
                $this->db->where('user_username', $username);
                $this->db->where('notifikasi_level', 'Member');
            } else {
                $this->db->select('count(notifikasi_id) as jumlah');
                $this->db->from('lemlit_notifikasi');
                $this->db->where('notifikasi_status', 1);
                $this->db->where('notifikasi_level', 'Admin');
            }

            $total = $this->db->get()->row();

            $response = [
                'resp_error' => false,
                'resp_msg'   => 'success',
                'total'      => number_format($total->jumlah, 0, '', ','),
            ];
        }

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