import { Injectable } from '@angular/core';
import { Http, Response, Headers, RequestOptions } from '@angular/http';
import { Observable } from 'rxjs/Rx';

import { ResultInfo } from '../results/resultInfo';
import { CommunityInfo } from './communityInfo';
import{EnvProperties} from '../../utils/properties/env-properties';

@Injectable()
export class CommunityService {

    constructor(private http:Http) {
      }

    getCommunity(properties:EnvProperties, url: string) {
        return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)) : url)
                        .map(res => <any> res.json()).map(res => this.parseCommunity(res));
    }

    updateCommunity(url: string, community:any) {
        let headers = new Headers({'Content-Type': 'application/json'});
        let options = new RequestOptions({headers: headers});

        let body = JSON.stringify(community);

        console.log(body);

        return this.http.post(url, body, options)
                          /*.map(res => res.json())*/
                          .do(request => console.log("Insert Response:"+request.status));
    }

    iscommunityManager(properties:EnvProperties, url: string, manager:string){
      return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)) : url)
                      .map(res => <any> res.json()).map(res => this.parseCommunity(res)).map(community => community.managers.indexOf(manager)!=-1);
    }
    iscommunityRI(properties:EnvProperties, url: string){
      return this.http.get((properties.useCache)? (properties.cacheUrl+encodeURIComponent(url)) : url)
                      .map(res => <any> res.json()).map(res => this.parseCommunity(res)).map(community => (community && community.type && community.type !="community"));
    }
    isSubscribedToCommunity(pid:string, email:string, url:string){
      return this.http.get(url+"/community/"+pid+"/subscribers")
                      .map(res =>  ((<any>res =="")?{}:<any> res.json()))

                      .map(res => {
                        if(res.subscribers && res.subscribers != null){

                          for(var i =0; i< res.subscribers.length; i++ ){
                            if(res.subscribers[i]!=null && res.subscribers[i].email == email){
                              return true;
                            }
                          }
                        }
                        return false;

                      }).do(res => {console.log("Response is "+res)});
    }
    parseCommunity(data:any): CommunityInfo {

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

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

          let resData = Array.isArray(data) ? data[i] : data;

          var community: CommunityInfo = new CommunityInfo();

          if(Array.isArray(resData)) {

              community['title'] = resData[0].name;
              community['shortTitle'] = resData[0].shortName;
              community['communityId'] = resData[0].id;
              community['queryId'] = resData[0].queryId;
              community['logoUrl'] = resData[0].logoUrl;
              community['description'] = resData[0].description;
              community['date'] = resData[0].creationDate;
              community['zenodoCommunity'] = resData[0].zenodoCommunity;
              community['status'] = "all";
              if(resData[0].hasOwnProperty('status')){
                community['status'] = resData[0].status;
                var status = ["all","hidden","manager"];
                if(status.indexOf(community['status']) ==-1){
                  community['status'] = "hidden";
                }
              }
              if (resData[0].type != null) {
                    community['type'] = resData[0].type;
              }

              if(resData[0].managers != null) {
                  if(community['managers'] == undefined) {
                    community['managers'] = new Array<string>();
                  }

                  let managers = resData[0].managers;
                  let length = Array.isArray(managers) ? managers.length : 1;

                  for(let i=0; i<length; i++) {
                    let manager = Array.isArray(managers) ? managers[i] : managers;
                    community.managers[i] = manager;
                  }
              }

              if(resData[0].subjects != null) {
                  if(community['subjects'] == undefined) {
                    community['subjects'] = new Array<string>();
                  }

                  let subjects = resData[0].subjects;
                  let length = Array.isArray(subjects) ? subjects.length : 1;

                  for(let i=0; i<length; i++) {
                    let subject = Array.isArray(subjects) ? subjects[i] : subjects;
                    community.subjects[i] = subject;
                  }
              }

          } else if(!Array.isArray(resData)) {

              community['title'] = resData.name;
              community['shortTitle'] = resData.shortName;
              community['communityId'] = resData.id;
              community['queryId'] = resData.queryId;
              community['logoUrl'] = resData.logoUrl;
              community['description'] = resData.description;
              community['date'] = resData.creationDate;
              community['zenodoCommunity'] = resData.zenodoCommunity;
              community['status'] = "all";
              if(resData.hasOwnProperty('status')){
                community['status'] = resData.status;
                var status = ["all","hidden","manager"];
                if(status.indexOf(community['status']) ==-1){
                  community['status'] = "hidden";
                }
              }
              if (resData.type != null) {
                    community['type'] = resData.type;
              }

              if(resData.managers != null) {
                  if(community['managers'] == undefined) {
                    community['managers'] = new Array<string>();
                  }

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

                  for(let i=0; i<length; i++) {
                    let manager = Array.isArray(managers) ? managers[i] : managers;
                    community.managers[i] = manager;
                  }
              }

              if(resData.subjects != null) {
                  if(community['subjects'] == undefined) {
                    community['subjects'] = new Array<string>();
                  }

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

                  for(let i=0; i<length; i++) {
                    let subject = Array.isArray(subjects) ? subjects[i] : subjects;
                    community.subjects[i] = subject;
                  }
              }
          }
      }
      return community;
    }

}