import { Injectable } from '@angular/core';
import {HttpClient} from '@angular/common/http';

@Injectable({
  providedIn: 'root'
})
export class AutocompleteService {

  apiRoot = 'https://restcountries.eu';

  constructor(private http: HttpClient) { }

  doSearch(inputText: string, callback: any) {
    this.http.get(`${this.apiRoot}/rest/v2/name/${inputText}`, { observe: 'response' }).subscribe(response => {
      if (response.status === 200) {
        const result = Object.keys(response.body).map(key => {
          return response.body[key].name;
        });
        callback(result);
      } else {
        callback([]);
      }
    });
  }}