import {Injectable, ReflectiveInjector, Injector} from '@angular/core';
import {Headers, Http, Response} from '@angular/http';
import 'rxjs/Rx';
import {FieldBase} from '../../app/form/fields/field-base';
import {JsonObjest} from '../../app/entities/JsonObject.class';
import {FieldVisibility} from '../../app/services/fieldVisibility.service';
import {dataModelBuilder} from '../../app/services/dataModelBuilder.service';
import { DatasetProfile } from '../entities/datasetprofile';
import {DataModel} from '../entities/DataModel'


import './../../assets/xml2json.min.js';

declare var X2JS: any;

@Injectable()
export class ServerService {

  xml2jsonOBJ: any;
  //fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/a868dbbb-ee37-4ce6-81c8-27048e0599a9';
  fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/a71a6a92-5c23-40d7-ab87-e30bc860f5a4';//include rules!
  //fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/6c845c42-dc09-42ed-9959-cceb3b616364';

/*  
  //fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/a868dbbb-ee37-4ce6-81c8-27048e0599a9';
  fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/a71a6a92-5c23-40d7-ab87-e30bc860f5a4';
  //fetchURL: string = 'http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/6c845c42-dc09-42ed-9959-cceb3b616364';
*/

  data: any;
  
  constructor(private http: Http) {
    this.xml2jsonOBJ = new X2JS();
  }

  
  getData() {
    
    if(this.data != null)
      return this.data;  //use the already loaded one
    
    
    return this.http.get(this.fetchURL)
      .map(
      (response: Response) => {
          const data = response.json();
  
          //replace the xmls {model,view,rule} definitions with json -- https://github.com/abdmob/x2js library
          data.dataset.profile.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.definition);
          data.dataset.profile.ruleset.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.ruleset.definition);
          data.dataset.profile.viewstyle.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.viewstyle.definition);
          //can be converted back to xml (which shouldn't be needed) with   this.xml2jsonOBJ.json2xml_str    
          
          this.data = data; //cache it for subsequent calls
          
          return data;
        }
      );


  }

  
  
  getFields() {
   

    //return this.http.get('http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/6c845c42-dc09-42ed-9959-cceb3b616364')
    return this.http.get('http://dl010.madgik.di.uoa.gr:8080/dmp-backend/rest/DMP/a868dbbb-ee37-4ce6-81c8-27048e0599a9')
      .map(
      (response: Response) => {
        const data = response.json();
        let obj: JsonObjest = new JsonObjest();

        //let test = new FieldBase(data);  

        //replace the xmls {model,view,rule} definitions with json -- https://github.com/abdmob/x2js library
        data.dataset.profile.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.definition);
        data.dataset.profile.ruleset.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.ruleset.definition);
        data.dataset.profile.viewstyle.definition = this.xml2jsonOBJ.xml_str2json(data.dataset.profile.viewstyle.definition);
        //can be converted back to xml (which shouldn't be needed) with   this.xml2jsonOBJ.json2xml_str       
        obj.fields = data.dataset.profile.viewstyle.definition.root.fields.field;
        
        console.log("obj.fields");
        console.log(obj.fields);

        return obj.fields; //return data;
      }
      );
  }
}