@smarttracker/blue-button-generate/test/util/xml2jsutil.js

Blue Button CCDA Generator.

"use strict";

var xml2js = require('xml2js');
var jsonutil = require('../util/jsonutil');

var findSection = exports.findSection = (function () {
  var templateIdsForSection = {
    'allergies': ["2.16.840.1.113883.10.20.22.2.6", "2.16.840.1.113883.10.20.22.2.6.1"],
    'medications': ["2.16.840.1.113883.10.20.22.2.1", "2.16.840.1.113883.10.20.22.2.1.1"],
    'immunizations': ["2.16.840.1.113883.10.20.22.2.2", "2.16.840.1.113883.10.20.22.2.2.1"],
    'procedures': ["2.16.840.1.113883.10.20.22.2.7", "2.16.840.1.113883.10.20.22.2.7.1"],
    'encounters': ["2.16.840.1.113883.10.20.22.2.22"],
    'payers': ["2.16.840.1.113883.10.20.22.2.18"],
    'plan_of_care': ["2.16.840.1.113883.10.20.22.2.10"],
    'problems': ["2.16.840.1.113883.10.20.22.2.5", "2.16.840.1.113883.10.20.22.2.5.1"],
    'social_history': ["2.16.840.1.113883.10.20.22.2.17"],
    'vitals': ["2.16.840.1.113883.10.20.22.2.4", "2.16.840.1.113883.10.20.22.2.4.1"],
    'results': ["2.16.840.1.113883.10.20.22.2.3", "2.16.840.1.113883.10.20.22.2.3.1"]
  };

  var findNormalSection = function (ccd, sectionName) {
    var root = jsonutil.getDeepValue(ccd, 'ClinicalDocument.component.0.structuredBody.0.component');
    if (root) {
      var n = root.length;
      var templateIds = templateIdsForSection[sectionName];
      for (var i = 0; i < n; ++i) {
        var sectionInfo = root[i].section[0];
        var ids = sectionInfo.templateId;
        if (ids) {
          for (var j = 0; j < ids.length; ++j) {
            var id = ids[j];
            for (var k = 0; k < templateIds.length; ++k) {
              var templateId = templateIds[k];
              if (id['$'].root === templateId) {
                return root[i].section[0];
              }
            }
          }
        }
      }
    }
    return null;
  };

  var findDemographics = function (ccd) {
    var result = jsonutil.getDeepValue(ccd, 'ClinicalDocument.recordTarget.0.patientRole.0');
    return result;
  };

  return function (ccd, sectionName) {
    if (sectionName === 'demographics') {
      return findDemographics(ccd);
    } else {
      return findNormalSection(ccd, sectionName);
    }
  };
})();

var toOrderedJSON = exports.toOrderedJSON = function (xml, callback) {
  var parser = new xml2js.Parser({
    async: false,
    normalize: true
  });
  parser.parseString(xml, function (err, result) {
    if (err) {
      callback(err);
    } else {
      var orderedResult = jsonutil.orderByKeys(result);
      callback(err, orderedResult);
    }
  });
};

var sectionNames = ['demographics', 'allergies', 'medications', 'immunizations', 'procedures', 'encounters', 'payers', 'plan_of_care', 'problems', 'social_history', 'vitals', 'results'];

exports.toOrderedSectionJSONs = function (xml, callback) {
  toOrderedJSON(xml, function (err, result) {
    if (err) {
      callback(err);
    } else {
      var resultSectionized = sectionNames.reduce(function (r, name) {
        var sectionJSON = findSection(result, name);
        r[name] = sectionJSON;
        return r;
      }, {});
      callback(null, resultSectionized);
    }
  });
};