Save Bayar ID Billing

public function bayar_post()
    {
        $id_billing = trim($this->post('id_billing'));

        if ($id_billing == '') {
            $response = [
                'resp_code'    => '99',
                'resp_desc'    => 'ID Billing Kosong.',
                'idbilling'    => '',
                'npwpd'        => '',
                'nama'         => '',
                'bulan'        => '',
                'tahun'        => '',
                'tanggal'      => '',
                'tanggaltempo' => '',
                'nosppd'       => '',
                'tagihanpokok' => 0,
                'jenispajak'   => '',
                'pengguna'     => '',
                'uraian'       => '',
                'denda'        => 0,
            ];
        } else {
            $jenisret = substr($id_billing, 5, 1);

            if ($jenisret == 1) {
                // IMB
                $dataResp = $this->db->get_where('v_imb_dpm', array('no_billing' => $id_billing))->row();
                if (count($dataResp) == 0) {
                    $response = [
                        'resp_code'    => '01',
                        'resp_desc'    => 'ID Billing Tidak Terdaftar.',
                        'idbilling'    => '',
                        'npwpd'        => '',
                        'nama'         => '',
                        'bulan'        => '',
                        'tahun'        => '',
                        'tanggal'      => '',
                        'tanggaltempo' => '',
                        'nosppd'       => '',
                        'tagihanpokok' => 0,
                        'jenispajak'   => '',
                        'pengguna'     => '',
                        'uraian'       => '',
                        'denda'        => 0,
                    ];
                } else {
                    if ($dataResp->tgl_bayar == '') {
                        // Proses Bayar
                        $id   = $dataResp->id;
                        $data = array(
                            'sts_proses'          => 12,
                            'tgl_validasi'        => date('Y-m-d'),
                            'user_validasi'       => '',
                            'pemohon_date_update' => date('Y-m-d'),
                            'tgl_bayar'           => 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);

                        $response = [
                            'resp_code' => '00',
                            'resp_desc' => 'Pembayaran Sukses',
                        ];
                    } else {
                        $response = [
                            'resp_code' => '02',
                            'resp_desc' => 'Anda sudah melakukan Pembayaran',
                        ];
                    }
                }
            } elseif ($jenisret == 2) {
                // Trayek
                $dataResp = $this->db->get_where('v_trayek_dpm', array('no_billing' => $id_billing))->row();
                if (count($dataResp) == 0) {
                    $response = [
                        'resp_code'    => '01',
                        'resp_desc'    => 'ID Billing Tidak Terdaftar.',
                        'idbilling'    => '',
                        'npwpd'        => '',
                        'nama'         => '',
                        'bulan'        => '',
                        'tahun'        => '',
                        'tanggal'      => '',
                        'tanggaltempo' => '',
                        'nosppd'       => '',
                        'tagihanpokok' => 0,
                        'jenispajak'   => '',
                        'pengguna'     => '',
                        'uraian'       => '',
                        'denda'        => 0,
                    ];
                } else {
                    if ($dataResp->tgl_bayar == '') {
                        // Proses Bayar
                        $id   = $dataResp->id;
                        $data = array(
                            'sts_proses'          => 12,
                            'tgl_validasi'        => date('Y-m-d'),
                            'user_validasi'       => '',
                            'pemohon_date_update' => date('Y-m-d'),
                            'tgl_bayar'           => date('Y-m-d'),
                            'pemohon_time_update' => date('Y-m-d H:i:s'),
                        );

                        $this->db->where('id', $id);
                        $this->db->update('c39_trayek_pemohon', $data);

                        $response = [
                            'resp_code' => '00',
                            'resp_desc' => 'Pembayaran Sukses',
                        ];
                    } else {
                        $response = [
                            'resp_code' => '02',
                            'resp_desc' => 'Anda sudah melakukan Pembayaran',
                        ];
                    }
                }
            } elseif ($jenisret == 3) {
                // Pemakaman
                $dataResp = $this->db->get_where('v_makam', array('no_billing' => $id_billing))->row();
                if (count($dataResp) == 0) {
                    $response = [
                        'resp_code'    => '01',
                        'resp_desc'    => 'ID Billing Tidak Terdaftar.',
                        'idbilling'    => '',
                        'npwpd'        => '',
                        'nama'         => '',
                        'bulan'        => '',
                        'tahun'        => '',
                        'tanggal'      => '',
                        'tanggaltempo' => '',
                        'nosppd'       => '',
                        'tagihanpokok' => 0,
                        'jenispajak'   => '',
                        'pengguna'     => '',
                        'uraian'       => '',
                        'denda'        => 0,
                    ];
                } else {
                    if ($dataResp->tgl_bayar == '') {
                        // Proses Bayar
                        $id   = $dataResp->id;
                        $data = array(
                            'sts_proses'          => 6,
                            'tgl_validasi'        => date('Y-m-d'),
                            'user_validasi'       => '',
                            'pemohon_date_update' => date('Y-m-d'),
                            'tgl_bayar'           => date('Y-m-d'),
                            'pemohon_time_update' => date('Y-m-d H:i:s'),
                        );

                        $this->db->where('id', $id);
                        $this->db->update('c39_makam_pemohon', $data);

                        $response = [
                            'resp_code' => '00',
                            'resp_desc' => 'Pembayaran Sukses',
                        ];
                    } else {
                        $response = [
                            'resp_code' => '02',
                            'resp_desc' => 'Anda sudah melakukan Pembayaran',
                        ];
                    }
                }
            }
        }

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