import { HttpHeaders } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { environment } from '../../../environments/environment';
import { UserInvitationCriteria } from '../../models/criteria/invitation/UserInvitationCriteria';
import { RequestItem } from '../../models/criteria/RequestItem';
import { Invitation } from '../../models/invitation/Invitation';
import { User } from '../../models/invitation/User';
import { BaseHttpService } from '../../utilities/cite-http-service-module/base-http.service';

@Injectable()
export class InvitationService {

	private actionUrl: string;
	private headers: HttpHeaders;

	constructor(private http: BaseHttpService) {

		this.actionUrl = environment.Server + 'invite/';

		this.headers = new HttpHeaders();
		this.headers = this.headers.set('Content-Type', 'application/json');
		this.headers = this.headers.set('Accept', 'application/json');
	}

	public inviteUsers(invitation: Invitation): Observable<User[]> {
		return this.http.post<User[]>(this.actionUrl + 'users', invitation, { headers: this.headers });
	}

	public getUsers(usersInvitationRequestItem: RequestItem<UserInvitationCriteria>): Observable<User[]> {
		return this.http.post<User[]>(this.actionUrl + 'getUsers', usersInvitationRequestItem, { headers: this.headers });
	}

	public exchange(id: String): Observable<String> {
		return this.http.get<String>(this.actionUrl + 'exchange/' + id, { headers: this.headers });
	}
}