<?php

class Downloader extends MY_Controller
{
  // dev
  //var $NAT_PATIENT_API = "http://10.9.8.249/one-api/nat_patient/r_api/";
  //prod
  var $NAT_PATIENT_API = "http://192.168.50.250/one-api/nat_patient/r_api/";
  function __construct()
  {
    parent::__construct();
  }
  function log($msg)
  {
    //$dt = Date("Y-m-d H:i:s");
    //echo "$dt $msg \n";
    echo $msg;
  }
  /*
    create table m_patient_nat_download (
      M_PatientNatDownloadID int not null auto_increment primary key,
      M_PatientNatDownloadDate datetime default current_timestamp(),
      M_PatientNatDownloadData text,
      M_PatientNatDownloadIsProcessed varchar(1) default 'N',
      key(M_PatientNatDownloadIsProcessed)
    ); 
   */
  function get_branch()
  {
    $sql = "select M_BranchID,M_BranchCode from m_branch where M_BranchIsDefault = 'Y' and M_BranchIsActive = 'Y'";
    $qry = $this->db->query($sql);
    if (!$qry) {
      $this->log("[ERR] " . $this->db->error()["message"] . "|" . $this->db->last_query());
      exit;
    }
    $rows = $qry->result_array();
    if (count($rows) == 0) {
      $this->log("[ERR] Default Branch not found.");
      exit;
    }
    return [$rows[0]["M_BranchID"], $rows[0]["M_BranchCode"]];
  }

  function download()
  {
    list($branchID, $branchCode) = $this->get_branch();
    $url = $this->NAT_PATIENT_API . "download/"  . $branchCode;
    $resp = $this->post($url, "");
    $j_resp = json_decode($resp, true);
    $this->db->trans_begin();
    if ($j_resp["status"] == "OK") {
      if (count($j_resp["data"]) > 0) {
        //insert to download and confirm
        $ids = [];
        $sql = "insert into m_patient_nat_download(M_PatientNatDownloadData) values(?)";
        foreach ($j_resp["data"] as $d) {
          $ids[] = $d["logDownloadID"];
          $qry = $this->db->query($sql, [json_encode($d["logDownloadData"])]);
          if (!$qry) {
            $this->db->trans_rollback();
            $this->log("Error " . $j_resp["message"]);
            exit;
          }
        }
        $param = ["branchCode" => $branchCode, "ids" => $ids];
        $j_param = json_encode($param);
        $url = $this->NAT_PATIENT_API . "download_confirm/";
        $z_param = gzcompress($j_param, 9);
        $resp = $this->post($url, $z_param);
        $j_resp = json_decode($resp, true);
        if ($j_resp["status"] == "OK") {
          $this->db->trans_commit();
          $this->log("Success");
        } else {
          $this->db->trans_rollback();
          $this->log("Err " . $j_resp["message"]);
        }
      } else {
        $this->log("No National Patient Downloaded Data");
      }
    } else {
      $this->log("Error " . $j_resp["message"]);
    }
  }

  function process()
  {
    list($branchID, $branchCode) = $this->get_branch();
    $this->db->trans_begin();
    $sql = "select * from m_patient_nat_download where M_PatientNatDownloadIsProcessed = 'N' limit 0,50";
    $qry = $this->db->query($sql);
    if (!$qry) {
      $this->db->trans_rollback();
      $this->log("Error select m_patient_nat_download | " . $this->db->last_query());
      exit;
    }
    $rows = $qry->result_array();
    foreach ($rows as $r) {
      $data = json_decode($r["M_PatientNatDownloadData"], true);
      if ($branchCode == $data["patient"]["M_BranchCode"]) {
        $sql = "update m_patient set M_PatientIDNumber = ? where M_PatientID = ?";
        $qry = $this->db->query($sql, [$data["patient"]["Nat_PatientIDNumber"], $data["patient"]["M_PatientID"]]);
        if (!$qry) {
          $this->db->trans_rollback();
          $this->log("Error update m_patient | " . $this->db->last_query());
          exit;
        }
      } else {
        $this->log("Invalid branch : " . $data["patient"]["M_BranchCode"]);
      }
    }
    $this->db->trans_commit();
    $this->log("Success");
  }
  public function post($url, $data)
  {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
      "Content-Type: application/text",
      "Content-Length: " . strlen($data),
    ]);
    $result = curl_exec($ch);
    if (curl_error($ch) != "") {
      echo json_encode([
        "status" => "ERR",
        "message" => "Http Error : " . curl_error($ch),
      ]);
      curl_close($ch);
      exit();
    }
    curl_close($ch);
    return $result;
  }
}