import {HostedByCollectedFrom, Journal, Project, RelationResult} from "../../utils/result-preview/result-preview";
import {Context, Reference} from "../../utils/entities/resultLandingInfo";
import {Injectable} from '@angular/core';
import {properties} from "../../../../environments/environment";
import {StringUtils} from "../../utils/string-utils.class";

@Injectable({
  providedIn: 'root'
})
export class ParsingFunctions {
	public eoscSubjects = [
		{label: 'EOSC::Jupyter Notebook', link: 'https://' + (properties.environment != 'production'?'beta.':'') + 'marketplace.eosc-portal.eu/services?tag=EOSC%3A%3AJupyter+Notebook', value: 'Jupyter Notebook'},
		{label: 'EOSC::RO-crate', link: 'https://' + (properties.environment != 'production'?'beta.':'') + 'marketplace.eosc-portal.eu/services?tag=EOSC%3A%3ARO-crate', value: 'RO-crate'},
		{label: 'EOSC::Galaxy Workflow', link: 'https://' + (properties.environment != 'production'?'beta.':'') + 'marketplace.eosc-portal.eu/services?tag=EOSC%3A%3AGalaxy+Workflow', value: 'Galaxy Workflow'},
		{label: 'EOSC::Twitter Data', link: 'https://' + (properties.environment != 'production'?'beta.':'') + 'marketplace.eosc-portal.eu/services?tag=EOSC%3A%3ATwitter+Data', value: 'Twitter Data'}
	]

  public notebookInSubjects: boolean = false;
  private notebookKeyword: string = "eosc jupyter notebook";
  private notebook_label: string = "EOSC";
  private notebook_value: string = "EOSC Jupyter Notebook";
  
  public open = 'lock_open';
  public closed = 'lock';
  public unknown = 'question_mark';

  private instanceWithDoiExists: boolean = false;

  constructor() {
  }
  
  public ngOnDestroy() {
  }
  
  public parseFundingByProjects(fundedByProjects: Project[], relation: any): Project[] {
    if (fundedByProjects == undefined) {
      fundedByProjects = [];
    }
    
    let fundedByProject: Project = {
      "id": "", "acronym": "", "title": "",
      "funderShortname": "", "funderName": "",
      "funding": "", "code": "", "provenanceAction": "", "validated": false
    };
    
    if (relation.title != 'unidentified') {
      fundedByProject['id'] = relation['to'].content;
      fundedByProject['acronym'] = relation.acronym;
      fundedByProject['title'] = relation.title;
      fundedByProject['code'] = relation.code;
      if(relation.validated && relation.validated.date) {
        fundedByProject['validated'] = true;
      }
			fundedByProject['provenanceAction'] = relation.provenanceaction;
    } else {
      fundedByProject['id'] = "";
      fundedByProject['acronym'] = "";
      fundedByProject['title'] = "";
      fundedByProject['code'] = "";
      fundedByProject['provenanceAction'] = "";
    }
    
    if (relation.hasOwnProperty("funding")) {
      let funding: { "funderName": string, "funderShortname": string, "stream": string };
      funding = this.parseFundingTrees(relation.funding);
      
      if (funding.funderName) {
        fundedByProject['funderName'] = funding.funderName;
      }
      if (funding.funderShortname) {
        fundedByProject['funderShortname'] = funding.funderShortname;
      }
      if (funding.stream) {
        fundedByProject['funding'] = funding.stream;
      }
    }
    fundedByProjects.push(fundedByProject);
    return fundedByProjects;
  }
  
  // publication & research data : for fundedByProjects | project landing : for funding
  public parseFundingTrees(fundingTree: any): { "funderName": string, "funderShortname": string, "stream": string } {
    let funding: { "funderName": string, "funderShortname": string, "stream": string } = {
      "funderName": "",
      "funderShortname": "",
      "stream": ""
    };
    let length = Array.isArray(fundingTree) ? fundingTree.length : 1;
    
    for (let i = 0; i < length; i++) {
      let fundingData = Array.isArray(fundingTree) ? fundingTree[i] : fundingTree;
      
      if (fundingData.hasOwnProperty("funder")) {
        funding.funderShortname = fundingData['funder'].shortname;
        funding.funderName = fundingData['funder'].name;
      }
      
      funding.stream = this.addFundingLevel0(fundingData, funding.stream);
      
      funding.stream = this.addFundingLevel1(fundingData, funding.stream);
      
      funding.stream = this.addFundingLevel2(fundingData, funding.stream);
    }
    return funding;
  }
  
  addFundingLevel0(parent: string, fundingStream: string): string {
    if (parent.hasOwnProperty("funding_level_0")) {
      let level0 = parent['funding_level_0'];
      
      fundingStream += (fundingStream) ? " ; " : "";
      fundingStream += level0.name;
    }
    return fundingStream;
  }
  
  addFundingLevel1(parent: string, fundingStream: string): string {
    if (parent.hasOwnProperty("funding_level_1")) {
      let level1 = parent['funding_level_1'];
      
      // For projects' parsing
      if (level1.hasOwnProperty("parent")) {
        fundingStream = this.addFundingLevel0(level1.parent, fundingStream);
      }
      
      fundingStream += (fundingStream) ? " | " : "";
      fundingStream += level1.name;
    }
    return fundingStream;
  }
  
  addFundingLevel2(parent: string, fundingStream: string): string {
    if (parent.hasOwnProperty("funding_level_2")) {
      let level2 = parent['funding_level_2'];
      
      // For projects' parsing
      if (level2.hasOwnProperty("parent")) {
        fundingStream = this.addFundingLevel1(level2.parent, fundingStream);
      }
      
      fundingStream += (fundingStream) ? " | " : "";
      fundingStream += level2.name;
    }
    return fundingStream;
  }
  
  // publication & dataset landing : for collectedFrom
  parseCollectedFrom(collectedFrom: { "name": string, "id": string }[],
                     _collectedFrom: any) {
    let length: number = collectedFrom.length;
    collectedFrom[length] = {"name": "", "id": ""};
    collectedFrom[length]['name'] = _collectedFrom.name;
    collectedFrom[length]['id'] = _collectedFrom.id;
  }
  
  // publication & dataset landing : for downloadFrom
  addPublisherToHostedBy_collectedFrom(hostedBy_collectedFrom: HostedByCollectedFrom[],
                                       publisher: string, journal: Journal,
                                       identifiers: Map<string, string[]>/*, title: { "name": string, "url": string, "accessMode": string}*/) {
    if (!this.instanceWithDoiExists && publisher && identifiers != null && identifiers.has('doi')) {
      if (hostedBy_collectedFrom == null) {
        hostedBy_collectedFrom = [];
      }
      let available: HostedByCollectedFrom = {
        downloadNames: [],
        downloadUrl: "",
        collectedNamesAndIds: null,
        accessRight: "",
        types: [],
        years: [],
        accessRightIcon: ""
      };

      if (journal && journal.journal) {
        available.downloadNames.push(publisher + "/ " + journal['journal']);
      } else {
        available.downloadNames.push(publisher);
      }

      available.downloadUrl = properties.doiURL + identifiers.get("doi")[0];;
      available.accessRightIcon = this.unknown;
      /*
            if(title != undefined && title['url'] == "") {
              title['url'] = url;
            }
      */
      hostedBy_collectedFrom.push(available);
    }
    return hostedBy_collectedFrom;
  }
  
  // publication & dataset landing : for downloadFrom
  parseDownloadFrom(downloadFrom: Map<string, { "url": string[], "accessMode": string[], "bestAccessMode": string }>, instance: any, url: string) {
    let key: string = instance['hostedby'].name;
    
    if (key) {
      this.addUrlAndAccessMode(downloadFrom, instance, key, url);
    }
  }
  
  // publication & dataset landing : for publishedIn
  parsePublishedIn(publishedIn: Map<string, { "url": string[], "accessMode": string[], "bestAccessMode": string }>, instance: any, result: any, url: string, counter: number): number {
    if (result != null && result.hasOwnProperty("source")) {
      let key: string;
      if (Array.isArray(result.source)) {
        if (counter == result.source.length) {
          counter--;
        }
        key = result['source'][counter];
      } else {
        key = result['source'];
      }
      
      if (key) {
        this.addUrlAndAccessMode(publishedIn, instance, key, url);
        counter++;
      }
    }
    return counter;
  }
  
  // publication & dataset landing : for downloadFrom and publishedIn
  addUrlAndAccessMode(mapStructure: Map<string, { "url": string[], "accessMode": string[], "bestAccessMode": string }>, instance: any, key: string, url: string) {
    if (!mapStructure.has(key)) {
      mapStructure.set(key, {"url": null, "accessMode": null, "bestAccessMode": null});
    }
    
    if (mapStructure.get(key)['url'] == null) {
      mapStructure.get(key)['url'] = new Array<string>();
    }
    
    if (url) {
      mapStructure.get(key)['url'].push(url);
    }
    
    if (mapStructure.get(key)['accessMode'] == null) {
      mapStructure.get(key)['accessMode'] = new Array<string>();
    }
    
    if (instance.hasOwnProperty("accessright")) {
      if (url) {
        mapStructure.get(key)['accessMode'].push(instance['accessright'].classname);
      }
      
      if (this.changeBestAccessMode(mapStructure.get(key)['bestAccessMode'], instance['accessright'])) {
        mapStructure.get(key)['bestAccessMode'] = instance['accessright'].classname;
      }
    } else if (url) {
      mapStructure.get(key)['accessMode'].push("");
    }
  }

  parseHostedBy_collectedFrom(hostedBy_collectedFrom: HostedByCollectedFrom[],
                              instance: any, url: string, globalAccessRight: string) {
    if(!url) {
      return;
    }

    let available: HostedByCollectedFrom = {
      "downloadNames": [],
      "downloadUrl": null,
      "collectedNamesAndIds": new Map(),
      "accessRight": null,
      "accessRightIcon": "",
      "types": [],
      "years": [],
      "license": ""
    };

    if (instance.hasOwnProperty("hostedby")) {
      let downloadNames: Set<string> = new Set();
      let length = Array.isArray(instance['hostedby']) ? instance['hostedby'].length : 1;
      for (let i = 0; i < length; i++) {
        let hostedBy = Array.isArray(instance['hostedby']) ? instance['hostedby'][i] : instance['hostedby'];
        if (hostedBy.name && hostedBy.name != "other resources" && hostedBy.name != "Unknown Repository") {
          downloadNames.add(String(hostedBy.name));
        }
      }
      available.downloadNames = Array.from(downloadNames);

      if (available.downloadNames.length == 0) {
        available.downloadNames.push(url.substring(0, 30) + '...');  // substring(from, to);
      }
    }

    if (instance.hasOwnProperty("collectedfrom")) {
      let length = Array.isArray(instance['collectedfrom']) ? instance['collectedfrom'].length : 1;
      for (let i = 0; i < length; i++) {
        let collectedFrom = Array.isArray(instance['collectedfrom']) ? instance['collectedfrom'][i] : instance['collectedfrom'];
        if(collectedFrom.name && collectedFrom.id) {
          available.collectedNamesAndIds.set(String(collectedFrom.name), collectedFrom.id);
        }
      }
    }

    if (instance.hasOwnProperty("instancetype")) {
      let types: Set<string> = new Set();
      let length = Array.isArray(instance['instancetype']) ? instance['instancetype'].length : 1;
      for (let i = 0; i < length; i++) {
        let instanceType = Array.isArray(instance['instancetype']) ? instance['instancetype'][i] : instance['instancetype'];
        if(instanceType.classname && instanceType.classname.toLowerCase() !== "unknown") {
          types.add(instanceType.classname);
        }
      }
      available.types = Array.from(types);
    }

    if (instance.hasOwnProperty("dateofacceptance")) {
      let years: Set<string> = new Set();
      let length = Array.isArray(instance['dateofacceptance']) ? instance['dateofacceptance'].length : 1;
      for (let i = 0; i < length; i++) {
        let dateOfAcceptance = Array.isArray(instance['dateofacceptance']) ? instance['dateofacceptance'][i] : instance['dateofacceptance'];
        let date: string = (dateOfAcceptance) + ""; // transform to string in case it is an integer
        years.add((date && (date).indexOf('-') !== -1) ? date.split('-')[0] : date);
      }
      available.years = Array.from(years);
    }

    available['downloadUrl'] = url;
    if(url.includes("doi.org/")) {
      this.instanceWithDoiExists = true;
    }

    if (instance.hasOwnProperty("accessright")) {
      let length = Array.isArray(instance['accessright']) ? instance['accessright'].length : 1;
      for (let i = 0; i < length; i++) {
        let accessRight = Array.isArray(instance['accessright']) ? instance['accessright'][i] : instance['accessright'];

        if (this.changeBestAccessMode(available.accessRight, accessRight)) {
          available.accessRight = accessRight.classname;
          if (this.changeBestAccessMode(globalAccessRight, accessRight)) {
            globalAccessRight = accessRight.classname;
          }
        }
      }

    }

    if (available.accessRight) {
      if (available.accessRight.toLowerCase().indexOf('open') !== -1) {
        available.accessRightIcon = this.open;
      } else if (available.accessRight.toLowerCase().indexOf('not available') !== -1) {
        available.accessRightIcon = this.unknown;
      } else {
        available.accessRightIcon = this.closed;
      }
    } else {
      available.accessRightIcon = this.unknown;
    }

    if(instance.hasOwnProperty("license")) {
      available.license = Array.isArray(instance['license']) ? instance['license'][0] : instance['license'];
    }

    hostedBy_collectedFrom.push(available);
  }
  
  // publication & dataset landing : for downloadFrom and publishedIn
  changeBestAccessMode(currentAccessMode: string, accessMode: any): boolean {
    if (!accessMode) {
      return false;
    }
    accessMode = accessMode.classid;
    
    switch (currentAccessMode) {
      case null:
        if (accessMode != "UNKNOWN") {
          return true;
        }
        return false;
      case "CLOSED":
        if (accessMode == "OPEN" ||
          accessMode == "OPEN SOURCE" ||
          accessMode == "EMBARGO" ||
          accessMode == "RESTRICTED") {
          return true;
        }
        return false;
      case "RESTRICTED":
        if (accessMode == "OPEN" ||
          accessMode == "OPEN SOURCE" ||
          accessMode == "EMBARGO") {
          return true;
        }
        return false;
      case "EMBARGO":
        if (accessMode == "OPEN" ||
          accessMode == "OPEN SOURCE") {
          return true;
        }
        return false;
      case "OPEN SOURCE":
        if (accessMode == "OPEN") {
          return true;
        }
        return false;
    }
    return false;
  }
  
  // publication & dataset & software & orp landing : for relatedResearchResults
  parseResults(researchResults: RelationResult[], relation, provenanceAction: string, relationName: string): RelationResult[] {
    if (researchResults == undefined) {
      researchResults = [];
    }

    let researchResult: RelationResult = {
      name: "",
      id: "",
      date: "",
      percentage: null,
      percentageName: null,
      class: "",
      provenanceAction: provenanceAction,
      relationName: relationName
    };

    // researchResult.relationName = relation.to.class;

    if(relation['resulttype']) {
      if (relation['resulttype'].classname == "publication") {
        researchResult['class'] = "publication";
      } else if (relation['resulttype'].classname == "dataset") {
        researchResult['class'] = "dataset";
      } else if (relation['resulttype'].classname == "software") {
        researchResult['class'] = "software";
      } else if (relation['resulttype'].classname == "other") {
        researchResult['class'] = "other";
      }
    }
    researchResult['id'] = relation['to'].content;
    if(Array.isArray(relation['title'])) {
      for(let i=0; i<relation['title'].length; i++) {
        if(relation['title'][i] && relation['title'][i].content) {
          if(!researchResult['name'] || relation['title'][i].classid == "main title") {
            researchResult['name'] = String(relation['title'][i].content);
          }
        }
      }
    } else {
      researchResult['name'] = (relation['title'] && relation['title'].content) ? String(relation['title'].content) : "";
    }
    if(!researchResult['name']) {
      researchResult['name'] = "[no title available]";
    }
    if (relation.hasOwnProperty("dateofacceptance")) {
      var date: string = ((Array.isArray(relation.dateofacceptance)) ? (relation.dateofacceptance[0]) : (relation.dateofacceptance)) + ""; // transform to string in case it is an integer
      researchResult['date'] = (date && (date).indexOf('-') !== -1) ? date.split('-')[0] : date;
    }
    //researchResult['date'] = relation.dateofacceptance.substring(0,4);;
    let percentageName: string;
    if(relation.trust) {
      percentageName = "trust";
    } else if(relation.similarity) {
      percentageName = "similarity";
    }
    if(percentageName) {
      researchResult['percentage'] = Math.round(relation[percentageName] * 100);
      researchResult['percentageName'] = percentageName;
    }
    researchResults.push(researchResult);
    return researchResults;
  }

  sortByPercentage(results: RelationResult[]): RelationResult[] {
    if (results) {
      return results.sort(function (a, b) {
        return b["percentage"] - a["percentage"]
      });
    }
    return results;
  }
  
  // publication & dataset landing : for identifiers
  parseIdentifiers(pid: any): Map<string, string[]> {
    let identifiers = new Map<string, string[]>();
    
    if (pid.hasOwnProperty("classid") && pid['classid'] != "") {
      if (pid.classid == "doi" || pid.classid == "pmc" || pid.classid == "handle" || pid.classid == "pmid" || pid.classid == "re3data") {
        if (!identifiers.has(pid.classid)) {
          identifiers.set(pid.classid, new Array<string>());
        }
        identifiers.get(pid.classid).push(pid.content+"");
      }
    } else {
      for (let i = 0; i < pid.length; i++) {
        if (pid[i].classid == "doi" || pid[i].classid == "pmc" || pid[i].classid == "handle" || pid[i].classid == "pmid" || pid[i].classid == "re3data") {
          if (!identifiers.has(pid[i].classid)) {
            identifiers.set(pid[i].classid, new Array<string>());
          }
          identifiers.get(pid[i].classid).push(pid[i].content+"");
        }
      }
    }
    return identifiers;
  }

  // publication & dataset landing : for subjects and otherSubjects and classifiedSubjects
  parseEoscSubjects(_subjects: any): any[] {
    let eoscSubjectsFound = [];
    let setOfEoscSubjects: Set<string> = new Set();

    let subject;
    let length = Array.isArray(_subjects) ? _subjects.length : 1;

    for (let i = 0; i < length; i++) {
      subject = Array.isArray(_subjects) ? _subjects[i] : _subjects;
      let content: string = subject.code+"";
      let checkAndAddEoscSubjectResp = this.checkAndAddEoscSubject(setOfEoscSubjects, eoscSubjectsFound, subject, content);
      let found: boolean = checkAndAddEoscSubjectResp["found"];
      if(found) {
        setOfEoscSubjects = checkAndAddEoscSubjectResp["setOfEoscSubject"];
        eoscSubjectsFound = checkAndAddEoscSubjectResp["eoscSubjectsFound"];
      }
    }

    return eoscSubjectsFound;
  }

  // publication & dataset landing : for subjects and otherSubjects and classifiedSubjects
  parseAllSubjects(_subjects: any, vocabulary: any): [string[], Map<string, string[]>, Map<string, string[]>, string[], string[], any[]] {
    let eoscSubjectsFound = [];
    let subjects: string[];
    let otherSubjects: Map<string, string[]>;
    let classifiedSubjects: Map<string, string[]>;
    let fos: string[];
    let sdg: string[];

    let setOfEoscSubjects: Set<string> = new Set();

    let subject;
    let length = Array.isArray(_subjects) ? _subjects.length : 1;
    
    for (let i = 0; i < length; i++) {
      subject = Array.isArray(_subjects) ? _subjects[i] : _subjects;
      if (subject.classid != "") {
        if (subject.classid == "keyword") {
          let content: string = subject.content+"";
          let checkAndAddEoscSubjectResp = this.checkAndAddEoscSubject(setOfEoscSubjects, eoscSubjectsFound, subject, content);
          let found: boolean = checkAndAddEoscSubjectResp["found"];
          if(found) {
            setOfEoscSubjects = checkAndAddEoscSubjectResp["setOfEoscSubject"];
            eoscSubjectsFound = checkAndAddEoscSubjectResp["eoscSubjectsFound"];
          } else {
            if (subjects == undefined) {
              subjects = new Array<string>();
            }
            subjects.push(content);
          }
        } else if (!vocabulary || vocabulary[subject.classid] || subject.classid === "SDG" || subject.classid === "FOS") {
        // if (subject.inferred && subject.inferred == true) {
          if(subject.classid === "SDG") {
            if (sdg == undefined) {
              sdg = new Array<string>();
            }
            sdg.push(subject.content+"");
          } else if(subject.classid === "FOS") {
            if (fos == undefined) {
              fos = new Array<string>();
            }
            fos.push(subject.content+"");
          } else {
            if (classifiedSubjects == undefined) {
              classifiedSubjects = new Map<string, string[]>();
            }

						let content: string = subject.content+"";
            let checkAndAddEoscSubjectResp = this.checkAndAddEoscSubject(setOfEoscSubjects, eoscSubjectsFound, subject, content);
						let found: boolean = checkAndAddEoscSubjectResp["found"];
            if(found) {
              setOfEoscSubjects = checkAndAddEoscSubjectResp["setOfEoscSubject"];
              eoscSubjectsFound = checkAndAddEoscSubjectResp["eoscSubjectsFound"];
            } else {
              if (!classifiedSubjects.has(subject.classname)) {
                classifiedSubjects.set(subject.classname, new Array<string>());
              }
							classifiedSubjects.get(subject.classname).push(content);
						}
          }
        } else {
          let content: string = subject.content+"";
          let checkAndAddEoscSubjectResp = this.checkAndAddEoscSubject(setOfEoscSubjects, eoscSubjectsFound, subject, content);
          let found: boolean = checkAndAddEoscSubjectResp["found"];
          if(found) {
            setOfEoscSubjects = checkAndAddEoscSubjectResp["setOfEoscSubject"];
            eoscSubjectsFound = checkAndAddEoscSubjectResp["eoscSubjectsFound"];
          } else {
            let classname: string = subject.classname + "";
            if (subjects == undefined) {
              subjects = new Array<string>();
            }
            subjects.push(content);
          }
        }
      }
    }
    return [subjects, otherSubjects, classifiedSubjects, fos, sdg, eoscSubjectsFound];
  }

  checkAndAddEoscSubject(setOfEoscSubjects: Set<string>, eoscSubjectsFound, subject, content) {
    let found: boolean = false;

    if(!setOfEoscSubjects.has(content)) {
      // looping through our declared array
      this.eoscSubjects.forEach(item => {
        if (content && content == item.label) {
          found = true;
          eoscSubjectsFound.push(item);
          setOfEoscSubjects.add(content);
        }
      });
    }
    return {"found": found, "setOfEoscSubject": setOfEoscSubjects, "eoscSubjectsFound": eoscSubjectsFound};
  }
  
  parseContexts(_contexts: any): Context[] {
    let contexts = new Array<Context>();

    let position = 0;
    let labels = "";
    let context;
    let length = Array.isArray(_contexts) ? _contexts.length : 1;
    for (let i = 0; i < length; i++) {
      let numOfCategories: number = 0;  // count categories with label
      context = Array.isArray(_contexts) ? _contexts[i] : _contexts;
      
      if (context.label && context.hasOwnProperty("type") && (context['type'] == "community" || context['type'] == "ri")) {
        if (context.hasOwnProperty("category")) {
          let category;
          let length2 = Array.isArray(context['category']) ? context['category'].length : 1;
          for (let z = 0; z < length2; z++) {
            let numOfConcepts: number = 0;  // count category concepts with label
            category = Array.isArray(context['category']) ? context['category'][z] : context['category'];
            if (category.label && category.hasOwnProperty("concept")) {
              let categoryConcept;
              let length1 = Array.isArray(category['concept']) ? category['concept'].length : 1;
              for (let j = 0; j < length1; j++) {
                categoryConcept = Array.isArray(category['concept']) ? category['concept'][j] : category['concept'];

                // initalize if there is concept label or this is the last concept of the category and there were no concepts
                // otherwise we could have multiple entries for the same category but without concepts
                if(categoryConcept.label || (numOfConcepts == 0 && j == (length1 - 1))) {
                  contexts[position] = {
                    "labelContext": "", "idContext": "",
                    "labelCategory": "", "idCategory": "",
                    "labelConcept": "", "idConcept": ""
                  };
                  contexts[position]['labelContext'] = context.label;
                  contexts[position]['idContext'] = context.id;
                  contexts[position]['labelCategory'] = category.label;
                  contexts[position]['idCategory'] = category.id;
                  contexts[position]['labelConcept'] = categoryConcept.label ? categoryConcept.label : null;
                  contexts[position]['idConcept'] = categoryConcept.label ? categoryConcept.id : null;

                  position++;
                  numOfConcepts++;
                }
              }
            } else if(category.label || (numOfCategories == 0 && z == (length2 - 1))) {
              contexts[position] = {"labelContext": "", "idContext": "",
                                    "labelCategory": "",  "idCategory": "",
                                    "labelConcept": "", "idConcept": ""};
              contexts[position]['labelContext'] = context.label;
              contexts[position]['idContext'] = context.id;
              contexts[position]['labelCategory'] = category.label ? category.label : null;
              contexts[position]['idCategory'] = category.label ? category.id : null;
              contexts[position]['labelConcept'] = null;
              contexts[position]['idConcept'] = null;
              position++;
              numOfCategories++;
            }
          }
        } else {
          contexts[position] = {"labelContext": "", "idContext": "",
            "labelCategory": "",  "idCategory": "",
            "labelConcept": "", "idConcept": ""};
          contexts[position]['labelContext'] = context.label;
          contexts[position]['idContext'] = context.id;
          contexts[position]['labelCategory'] = null;
          contexts[position]['idCategory'] = null;
          contexts[position]['labelConcept'] = null;
          contexts[position]['idConcept'] = null;
          contexts[position]['new'] = false;
          position++;
        }
      }
    }
    return contexts;
  }
  public static getEnermapsConceptId(contexts: any): string{
    let enermapsconcepts = contexts.filter(c=> {return c.idCategory == "enermaps::selection" && c.idConcept});
    return enermapsconcepts && enermapsconcepts.length > 0?enermapsconcepts[0].idConcept.split("enermaps::selection::")[1]:null;
    // return "hotmaps_heat_tot_curr_density"
  }
  parseTypes(types: string[], uniqueTypes: Set<string>, instance: any) {
    if (instance && instance.hasOwnProperty("instancetype") && instance['instancetype'].classname) {
      if (!uniqueTypes.has(instance['instancetype'].classname)) {
        types.push(instance['instancetype'].classname);
        uniqueTypes.add(instance['instancetype'].classname);
      }
    }
  }
  
  parseLanguages(_languages: any) {
    var languages = new Array<string>();

    if (!Array.isArray(_languages)) {
      if (_languages.classname != "Undetermined" && _languages.classname) {
        languages.push(_languages.classname);
      }
    } else {
      for (let i = 0; i < _languages.length; i++) {
        if (_languages[i].classname != "Undetermined" && _languages[i].classname) {
          languages.push(_languages[i].classname);
        }
      }
    }
    return languages;
  }
  
  parseCountries(_countries: any) {
    var countries = new Array<string>();
    
    if (!Array.isArray(_countries)) {
      if (_countries.classname != "Undetermined" && _countries.classname) {
        countries.push(_countries.classname);
      }
    } else {
      for (let i = 0; i < countries.length; i++) {
        if (_countries[i].classname != "Undetermined" && _countries[i].classname) {
          countries.push(_countries[i].classname);
        }
      }
    }
    return countries;
  }
  
  parseProgrammingLanguages(_pLanguages) {
    var pLanguages = new Array<string>();
    
    if (!Array.isArray(_pLanguages)) {
      if (_pLanguages.classname != "Undetermined" && _pLanguages.classname) {
        pLanguages.push(_pLanguages.classname);
      }
    } else {
      for (let i = 0; i < _pLanguages.length; i++) {
        if (_pLanguages[i].classname != "Undetermined" && _pLanguages[i].classname) {
          pLanguages.push(_pLanguages[i].classname);
        }
      }
    }
    return pLanguages;
  }
  
  parseReferences(citations: any): Reference[] {
    let references: Reference[] = [];
    citations = Array.isArray(citations) ? citations : [citations];
    citations.forEach(citation => {
      let reference: Reference = {name: null, ids: []};
      if(citation.rawText) {
        reference.name = citation.rawText;
      }
      if(citation.id) {
        let ids: any[] = Array.isArray(citation.id) ? citation.id : [citation.id];
        ids.forEach(id => {
          reference.ids.push({
            type: id.type,
            value: id.value,
            trust: id.confidenceLevel
          });
        });
      }
      references[citation.position - 1] = reference;
    });
    return references;
  }
  static parseRelCanonicalId(record, type){
    try{
      if(record["result"]["metadata"]["oaf:entity"][("oaf:"+type)]["children"] && record["result"]["metadata"]["oaf:entity"][("oaf:"+type)]["children"][type]){
        for(let child of record["result"]["metadata"]["oaf:entity"][("oaf:"+type)]["children"][type]){
          return child["objidentifier"];
        }
      }
    }catch(e){
      // console.error(e);
    }
    return  record["result"]["header"]["dri:objIdentifier"];

  }

  parseDescription(description):string[] {

    let abstracts = [];
    if(!Array.isArray(description)) {
      abstracts = [description ? String(description) : ""];
    } else {
      abstracts = description.map( x => String(x));
    }
    try{
      abstracts = abstracts.map( x => StringUtils.HTMLToString(x));
    } catch (e) {}
    abstracts =abstracts.sort((a,b) => b.length - a.length);
    return abstracts;
  }

}