import {Injectable} from '@angular/core';
import {URLSearchParams} from '@angular/http';
import {Http, Response} from '@angular/http';
import { Headers, RequestOptions } from '@angular/http';
import {Observable}     from 'rxjs/Observable';
import{EnvProperties} from '../../../utils/properties/env-properties';
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/share';
import { ClaimResult} from  '../claimEntities.class';

@Injectable()
export class SearchOrcidService {
  constructor( private http: Http ) {}


  searchOrcidAuthor (term: string, authorIds: string[], authors, properties:EnvProperties, addId):any {
    console.info("In searchOrcidAuthor: "+term);

    var headers = new Headers();
    headers.append('Accept', 'application/orcid+json');

    let url = properties.searchOrcidURL + term+'/record';
    let key = url;

    return this.http.get(url, { headers: headers })
                .map(res => res.json()['person'])
                .do(res => console.log(res))
                .map(res => [res['name']['given-names'],
                             res['name']['family-name'],
                             res['name']])
                .do(res => console.log(res))
                .map(res => this.parseOrcidAuthor(res, authorIds, authors, addId));
    }

  searchOrcidAuthors (term: string, authorIds: string[],
    properties:EnvProperties):any {
    console.info("In search Orcid authors for keyword: "+term);

    var headers = new Headers();
    headers.append('Accept', 'application/orcid+json');

    let url = properties.searchOrcidURL+'search?defType=edismax&q='+term+'&qf=given-name^1.0+family-name^2.0+other-names^1.0+credit-name^1.0&start=0&rows=10';
    let key = url;

    return this.http.get(url, { headers: headers })
      .map(res => res.json()['result'])
      .map(res => this.parseOrcidAuthors(res, authorIds));

    }

    searchOrcidPublications (id: string, properties:EnvProperties, parse:boolean = false):any {
      console.info("In search Orcid publications for author: "+id);

      var headers = new Headers();
      headers.append('Accept', 'application/orcid+json');

      let url =properties.searchOrcidURL+id+'/works';
      let key = url;

      return this.http.get(url, { headers: headers })
        .map(res => res.json()['group'])
        .do(res => console.log(res))
        .map(request => (parse?this.parse(request):request));
        //.map(res => res['orcid-work']);
      }


      parseOrcidAuthor (data: any, authorIds: string[],authors, addId):any {

              if(data[2] != null) {
                  if(addId){
                    authorIds.push(data[2].path);
                  }
                  var author ={};
                  author['id']=data[2].path;
                  if(data[0] != null) {
                    author['authorGivenName']=data[0].value;
                   } else {
                     author['authorGivenName']="";
                  }
                  if(data[1] != null) {
                    author['authorFamilyName']=data[1].value;
                  } else {
                    author['authorFamilyName']="";
                  }
                  authors.push(author);

                  return true;
              }

              return false;
      }

      parseOrcidAuthors (data: any, authorIds: string[]):any {
              let ret: boolean = false;
              let mydata: any;
              let length: number;

              if(data != null) {
                  length = data.length!=undefined ? data.length : 1;

                  for(let i=0; i<length; i++) {
                      mydata = data.length!=undefined  ? data[i] : data;

                           if(mydata.hasOwnProperty("orcid-identifier")) {
                               authorIds.push(mydata['orcid-identifier'].path);

                              //  if(mydata.hasOwnProperty("orcid-bio")) {
                              //      if(mydata['orcid-bio'].hasOwnProperty("personal-details")) {
                              //          if(mydata['orcid-bio']['personal-details'].hasOwnProperty("given-names")) {
                              //              authorGivenNames.push(mydata['orcid-bio']['personal-details']['given-names'].value);
                              //          } else {
                              //              authorGivenNames.push("");
                              //          }
                               //
                              //          if(mydata['orcid-bio']['personal-details'].hasOwnProperty("family-name")) {
                              //              authorFamilyNames.push(mydata['orcid-bio']['personal-details']['family-name'].value);
                              //          } else {
                              //              authorFamilyNames.push("");
                              //          }
                              //      }
                              //  }
                               ret = true;
                           }

                  }
              }
              return ret;
      }
      parse(response):ClaimResult[]{
        var results:ClaimResult[] = [];
        for(var i=0; i<response.length; i++){
          var item=response[i];
          var result:ClaimResult = new ClaimResult();
          result.DOI = null;
          result.url = null;
          result.publisher =  null;
          result.journal =  null;
          if(item['work-summary'] && item['work-summary'].length > 0){
            item = item['work-summary'][0];
          }else{
             item['work-summary'];
          }
            if(item['external-ids'] && item['external-ids']['external-id']){
              for(var j =0; j< item['external-ids']['external-id'].length; j++){
                var id = item['external-ids']['external-id'][j];
                if(id['external-id-type'] == "doi"){
                  result.DOI = id['external-id-value'];
                  result.url = "http://dx.doi.org/" + result.DOI;
                  break;
                }
              }
            }
            result.id = item['put-code'];
            if(item.title && item.title.title){
              result.title = item['title']['title'].value;
            }
          result.journal = item['journal-title'];          
          result.source = 'orcid';
          result.type = 'publication';
          if(item['publication-date'] && item['publication-date']['year']){
            result.date = item['publication-date']['year'].value
          }

          result.accessRights =  "OPEN";
          if(item.publisher){
            result.publisher = item.publisher;
          }
          result.result = item;

          results.push(result);
        }

        return results;

      }



}