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

import { Observable } from 'rxjs';
import 'rxjs/add/observable/from';

@Injectable()
export class PrototypeSearchService{
  
  results:{
    name: string,
    domain: string,
    title?: string
  }[] = [
    {
      "name": "Department of Education",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Energy",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of the Treasury",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Emergency Services and Public Protection",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Education, South Carolina",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Corrections Massachusetts",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Assistive and Rehabilitative Services",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Health Minnesota",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Human Resources",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of General Services",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "Department of Off Street Parking of the city of Miami",
      "domain": "Federal Hierarchy"
    },
    {
      "name": "16.829",
      "title": "Juvenile Justice Education Collaboration Assistance",
      "domain": "Assistance Listing"
    },
    {
      "name": "16.828",
      "title": "Swift, Certain, and Fair (SCF) Sanctions program: Replicating the Concepts behind Project HOPE",
      "domain": "Assistance Listing"
    },
    {
      "name": "16.827",
      "title": "Justice Reinvestment Initiative",
      "domain": "Assistance Listing"
    },
    {
      "name": "Mechanical Services, Inc. Action Obligation $16.82 BPA CALL",
      "title": "Justice Reinvestment Initiative",
      "domain": "Contract Data"
    }
  ]
  
  
  public loadData(query: string) {
    return Observable.from([this.results]).map(response => {
      return response.map(item => {
        
        let description;
        
        let regex = new RegExp(query, 'gi');
        let match;
        if(match = regex.exec(item.name)){
          let wordLength = parseInt(match.index + query.length);
          if(match.index === 0){
            description = `${item.name.slice(match.index, wordLength)}<b>${item.name.slice(wordLength)}</b>`;
          }else{
            description = `<b>${item.name.slice(0, match.index)}</b>${item.name.slice(match.index, wordLength)}<b>${item.name.slice(wordLength)}</b>`;
          }
          
          if(item.domain === 'Assistance Listing'){
            description = `${item.name.slice(match.index, wordLength)}<b>${item.name.slice(wordLength)}</b>`;
            description = `${description} ${item.title}`;
          }
        }
        
        return {
          name: item.name,
          domain: (query.length >= 14 || item.domain === 'Assistance Listing') ? `in ${item.domain}` : false,
          description: description
        }
        
      }).filter( item => item.description);
    });
  }
  
}