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

import { Flight } from './../classes/flight.class';
import { User } from './../classes/user.class';
import { Reader } from './../classes/reader.class';
import { Plane } from './../classes/plane.class';

@Injectable()
export class DataService {

  url:string = "";

  constructor(private http : Http){
  }

  load() : Promise<Object>
  {
  	return new Promise((resolve, reject) => {

  		if(this.url != "")
  		{
  			resolve();
  		}
  		else
  		{
  			this.http.get('/app/config/api.json').subscribe((res)=>{
		  		 var data = res.json();
			     this.url = data.protocol + data.hostname + ":" + data.port + "/" + data.api;
			     console.log(this.url);
			     resolve();
			});
  		}

  	});

  }


  //FLIGHTS

  flight(id:number): Observable<any> {
    let flightdata = this.http.get(`${this.url}/flights/${id}`, {headers: this.getHeaders()}).map(r => r.json());
    return flightdata;
  }

  flights(): Observable<any> {
    let flightdata = this.http.get(`${this.url}/flights`, {headers: this.getHeaders()}).map(r => r.json());
    return flightdata;
  }

  endFlight(id:number): Observable<any> {
    let flight = this.http.put(`${this.url}/flights/${id}/stop`, {headers: this.getHeaders()}).map(r => r.json());
    return flight
  }


  //USERS

  user(id:number): Observable<any> {
    let usersdata = this.http.get(`${this.url}/users/${id}`, {headers: this.getHeaders()}).map(r => r.json());
    return usersdata;
  }

  users(): Observable<any> {
    let usersdata = this.http.get(`${this.url}/users`, {headers: this.getHeaders()}).map(r => r.json());
    return usersdata;
  }

  postUser(user:User): Observable<User>{
    let userData = this.http.post(`${this.url}/users`, {name:user.name, cardId: user.card, role:user.role}, {headers: this.getHeaders()}).map(r => r.json());
    return userData;
  }

  editUser(user:User): Observable<User>{
    let userData = this.http.put(`${this.url}/users/${user.id}`, {name:user.name, cardId: user.card, role:user.role}, {headers: this.getHeaders()}).map(r => r.json());
    return userData;
  }


  //READERS

  reader(id:number): Observable<any> {
    let readerData = this.http.get(`${this.url}/readers/${id}`, {headers: this.getHeaders()}).map(r => r.json());
    return readerData;
  }

  readers(): Observable<any> {
    let readersData = this.http.get(`${this.url}/readers`, {headers: this.getHeaders()}).map(r => r.json());
    return readersData;
  }

  editReader(reader:Reader): Observable<Reader>{
    let readerData = this.http.put(`${this.url}/readers/${reader.id}`, {readerId:reader.reader_id, planeId:reader.plane.id}, {headers: this.getHeaders()}).map(r => r.json());
    return readerData;
  }  


  //PLANES

  plane(id:number): Observable<any> {
    let planeData = this.http.get(`${this.url}/planes/${id}`, {headers: this.getHeaders()}).map(r => r.json());
    return planeData;
  }

  planes(): Observable<any> {
    let planesData = this.http.get(`${this.url}/planes`, {headers: this.getHeaders()}).map(r => r.json());
    return planesData;
  }

  postPlane(plane:Plane): Observable<Plane>{
    let userData = this.http.post(`${this.url}/planes`, {name:plane.name, registration: plane.registration, model:plane.model, comment:plane.comment}, {headers: this.getHeaders()}).map(r => r.json());
    return userData;
  }

  editPlane(plane:Plane): Observable<Plane>{
    let planeData = this.http.put(`${this.url}/planes/${plane.id}`, {name:plane.name, registration: plane.registration, model:plane.model, comment:plane.comment}, {headers: this.getHeaders()}).map(r => r.json());
    return planeData;
  }


  //OTHER

  private getHeaders(){
    let headers = new Headers();
    headers.append('Accept', 'application/json');
    return headers;
  }
}