services/FhirResourcesService.php

   1 <?php
   2 /**
   3  * FHIRResources service class
   4  *
   5  * @package   OpenEMR
   6  * @link      http://www.open-emr.org
   7  * @author    Jerry Padgett <sjpadgett@gmail.com>
   8  * @copyright Copyright (c) 2018 Jerry Padgett <sjpadgett@gmail.com>
   9  * @license   https://github.com/openemr/openemr/blob/master/LICENSE GNU General Public License 3
  10  */
  11
  12
  13 namespace OpenEMR\Services;
  14
  15 use HL7\FHIR\STU3\FHIRDomainResource\FHIREncounter;
  16 use HL7\FHIR\STU3\FHIRDomainResource\FHIRPatient;
  17 use HL7\FHIR\STU3\FHIRDomainResource\FHIRPractitioner;
  18 use HL7\FHIR\STU3\FHIRElement\FHIRAddress;
  19 use HL7\FHIR\STU3\FHIRElement\FHIRAdministrativeGender;
  20 use HL7\FHIR\STU3\FHIRElement\FHIRCodeableConcept;
  21 use HL7\FHIR\STU3\FHIRElement\FHIRHumanName;
  22 use HL7\FHIR\STU3\FHIRElement\FHIRId;
  23 use HL7\FHIR\STU3\FHIRElement\FHIRReference;
  24 use HL7\FHIR\STU3\FHIRResource\FHIREncounter\FHIREncounterParticipant;
  25 use HL7\FHIR\STU3\FHIRResource\FHIRBundle;
  26 use HL7\FHIR\STU3\FHIRResource\FHIRBundle\FHIRBundleLink;
  27 use HL7\FHIR\STU3\PHPFHIRResponseParser;
  28
  29 //use HL7\FHIR\STU3\FHIRResource\FHIREncounter\FHIREncounterLocation;
  30 //use HL7\FHIR\STU3\FHIRResource\FHIREncounter\FHIREncounterDiagnosis;
  31 //use HL7\FHIR\STU3\FHIRElement\FHIRPeriod;
  32 //use HL7\FHIR\STU3\FHIRElement\FHIRParticipantRequired;
  33
  34 class FhirResourcesService
  35 {
  36     public function createBundle($resource = '', $resource_array = [], $encode = true)
  37     {
  38         $bundleUrl = \RestConfig::$REST_FULL_URL;
  39         $nowDate = date("Y-m-d\TH:i:s");
  40         $meta = array('lastUpdated' => $nowDate);
  41         $bundleLink = new FHIRBundleLink(array('relation' => 'self', 'url' => $bundleUrl));
  42         // set bundle type default to collection so may include different
  43         // resource types. at least I hope thats how it works....
  44         $bundleInit = array(
  45             'identifier' => $resource . "bundle",
  46             'type' => 'collection',
  47             'total' => count($resource_array),
  48             'meta' => $meta);
  49         $bundle = new FHIRBundle($bundleInit);
  50         $bundle->addLink($bundleLink);
  51         foreach ($resource_array as $addResource) {
  52             $bundle->addEntry($addResource);
  53         }
  54
  55         if ($encode) {
  56             return json_encode($bundle);
  57         }
  58
  59         return $bundle;
  60     }
  61
  62     public function createPatientResource($resourceId = '', $data = '', $encode = true)
  63     {
  64         // @todo add display text after meta
  65         $nowDate = date("Y-m-d\TH:i:s");
  66         $id = new FhirId();
  67         $id->setValue($resourceId);
  68         $name = new FHIRHumanName();
  69         $address = new FHIRAddress();
  70         $gender = new FHIRAdministrativeGender();
  71         $meta = array('versionId' => '1', 'lastUpdated' => $nowDate);
  72         $initResource = array('id' => $id, 'meta' => $meta);
  73         $name->setUse('official');
  74         $name->setFamily($data['lname']);
  75         $name->given = [$data['fname'], $data['mname']];
  76         $address->addLine($data['street']);
  77         $address->setCity($data['city']);
  78         $address->setState($data['state']);
  79         $address->setPostalCode($data['postal_code']);
  80         $gender->setValue(strtolower($data['sex']));
  81
  82         $patientResource = new FHIRPatient($initResource);
  83         //$patientResource->setId($id);
  84         $patientResource->setActive(true);
  85         $patientResource->setGender($gender);
  86         $patientResource->addName($name);
  87         $patientResource->addAddress($address);
  88
  89         if ($encode) {
  90             return json_encode($patientResource);
  91         } else {
  92             return $patientResource;
  93         }
  94     }
  95
  96     public function createPractitionerResource($id = '', $data = '', $encode = true)
  97     {
  98         $resource = new FHIRPractitioner();
  99         $id = new FhirId();
 100         $name = new FHIRHumanName();
 101         $address = new FHIRAddress();
 102         $id->setValue($id);
 103         $name->setUse('official');
 104         $name->setFamily($data['lname']);
 105         $name->given = [$data['fname'], $data['mname']];
 106         $address->addLine($data['street']);
 107         $address->setCity($data['city']);
 108         $address->setState($data['state']);
 109         $address->setPostalCode($data['zip']);
 110         $resource->setId($id);
 111         $resource->setActive(true);
 112         $gender = new FHIRAdministrativeGender();
 113         $gender->setValue('unknown');
 114         $resource->setGender($gender);
 115         $resource->addName($name);
 116         $resource->addAddress($address);
 117
 118         if ($encode) {
 119             return json_encode($resource);
 120         } else {
 121             return $resource;
 122         }
 123     }
 124
 125     public function createEncounterResource($eid = '', $data = '', $encode = true)
 126     {
 127         $pid = 'patient-' . $data['pid'];
 128         $temp = $data['provider_id'];
 129         //$r = $this->createPractitionerResource($data['provider_id'], $temp);
 130         $resource = new FHIREncounter();
 131         $id = new FhirId();
 132         $id->setValue('encounter-' . $eid);
 133         $resource->setId($id);
 134         $participant = new FHIREncounterParticipant();
 135         $prtref = new FHIRReference;
 136         $temp = 'Practitioner/provider-' . $data['provider_id'];
 137         $prtref->setReference($temp);
 138         $participant->setIndividual($prtref);
 139         $date = date('Y-m-d', strtotime($data['date']));
 140         $participant->setPeriod(['start' => $date]);
 141
 142         $resource->addParticipant($participant);
 143         $reason = new FHIRCodeableConcept();
 144         $reason->setText($data['reason']);
 145         $resource->addReason($reason);
 146         $resource->status = 'finished';
 147         $resource->setSubject(['reference' => "Patient/$pid"]);
 148
 149         if ($encode) {
 150             return json_encode($resource);
 151         } else {
 152             return $resource;
 153         }
 154     }
 155
 156     public function parseResource($rjson = '', $scheme = 'json')
 157     {
 158         $parser = new PHPFHIRResponseParser(false);
 159         if ($scheme == 'json') {
 160             $class_object = $parser->parse($rjson);
 161         } else {
 162             // @todo xml- not sure yet.
 163         }
 164         return $class_object; // feed to resource class or use as is object
 165     }
 166 }