D-Net

import {Injectable} from '@angular/core';

import {Http, Response} from '@angular/http';

import {Observable}     from 'rxjs/Observable';

import {OpenaireProperties} from '../utils/properties/openaireProperties';

import {SearchResult}     from '../utils/entities/searchResult';

import {RefineResultsUtils} from './servicesUtils/refineResults.class';

@Injectable()

export class SearchProjectsService {

    private sizeOfDescription: number = 497;

    constructor(private http: Http) {}

    searchProjects (params: string, page: number, size: number, refineFields:string[] ):any {

        console.info("In searchProjects");

        let link = OpenaireProperties.getSearchAPIURL()+"projects";

        let url = link+"?";

        if(params != '') {

            url += params+"&page="+page+"&size="+size;

        } else {

            url += "page="+page+"&size="+size;

        }

        return this.http.get(url)

                    .map(res => <any> res.json())

                    //.do(res => console.info(res))

                    .map(res => [res['meta'].total, this.parseResults(res['results']),RefineResultsUtils.parse(res['refineResults'],refineFields)]);

    }

    parseResults(data: any): SearchResult[] {

        let results: SearchResult[] = [];

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

        for(let i=0; i<length; i++) {

            let resData = Array.isArray(data) ? data[i]['result']['metadata']['oaf:entity']['oaf:project'] : data['result']['metadata']['oaf:entity']['oaf:project'];

            var result: SearchResult = new SearchResult();

            result['title'] = {"name": '', "url": '', "accessMode": ''};

            if(Array.isArray(resData['title'])) {

                // resData['title'][0].hasOwnProperty("content") {

                    result['title'].name = resData['title'][0];

                // }

            } else {

                // resData['title'].hasOwnProperty("content") {

                    result['title'].name = resData['title'];

                // }

            }

            // if(resData['title'].hasOwnProperty("content")) {

            //     result['title'].name = resData['title'].content;

            // }

            result['title'].url = OpenaireProperties.getsearchLinkToProject();

            result['title'].url += length > 1 ? data[i]['result']['header']['dri:objIdentifier'] : data['result']['header']['dri:objIdentifier'];

            if(resData['rels'].hasOwnProperty("rel")) {

                let relLength = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'].length : 1;

                for(let j=0; j<relLength; j++) {

                    let relation = Array.isArray(resData['rels']['rel']) ? resData['rels']['rel'][j] : resData['rels']['rel'];

                    if(relation.hasOwnProperty("to")) {

                         if(relation['to'].class == "hasParticipant") {

                            if(result['organizations'] == undefined) {

                                result['organizations'] = new Array<

                                    { "name": string, "url": string}>();

                            }

                            let countOrganizations = result['organizations'].length;

                            result['organizations'][countOrganizations] = { "name": "", "url": "" }

                            result['organizations'][countOrganizations]['url'] =

                                OpenaireProperties.getsearchLinkToOrganization() + relation['to'].content;

                            result['organizations'][countOrganizations]['name'] = relation.legalname;

                        }

                    }

                }

            }

            if(resData.hasOwnProperty("fundingtree")) {

              if(result['funders'] == undefined) {

                  result['funders'] = new Array<

                      {"funderShortname": string, "funderName": string}>();

              }

                let fundingLength = Array.isArray(resData['fundingtree']) ? resData['fundingtree'].length : 1;

                for(let z=0; z<fundingLength; z++) {

                    let fundingData = Array.isArray(resData['fundingtree']) ? resData['fundingtree'][z] : resData['fundingtree'];

                      let countFunders = result['funders'].length;

                    if(fundingData.hasOwnProperty("funder")) {

                        result['funders'][countFunders] =   {"funderShortname": "", "funderName": ""};

                        result['funders'][countFunders]['funderShortname'] = fundingData['funder'].shortname;

                        result['funders'][countFunders]['funderName'] = fundingData['funder'].name;

                    }

                }

            }

            if(resData.hasOwnProperty("startdate")) {

              result.startYear = resData.startdate.split('-')[0];

            }

            if(resData.hasOwnProperty("enddate")) {

              result.endYear = resData.enddate.split('-')[0];

            }

            results.push(result);

        }

        return results;

    }

}