import {Injectable} from '@angular/core';
import {Subject} from 'rxjs';
import {HttpClient, HttpParams} from '@angular/common/http';
import {User} from './user.model';

@Injectable({providedIn: 'root'})

export class UserService{
	private uZaddr = '';
	private uZaddrUpdated = new Subject<string>();

	constructor(private http: HttpClient){
	}
	
	addUser(address: string, session: string, blocktime: number) {
		const user: User={_id: '', address: address, session: session, blocktime: blocktime};
		this.http.post<{message: string}>('http://localhost:3000/api/users', user).
		subscribe((responseData) => {
			console.log(responseData.message);
		});
	}

	getUser(session: string) {
		const params = new HttpParams().append('session', session);
		this.http.get<{message: string, user: any}>('http://localhost:3000/api/getuser', { headers:{}, params: params, observe: 'response'}).
		subscribe((UserDataResponse) => {
			console.log(UserDataResponse.status);
			if (UserDataResponse.status == 200){
				this.uZaddr = UserDataResponse.body!.user[0].address;
				this.uZaddrUpdated.next(this.uZaddr);
			} else {
				this.uZaddrUpdated.next('');
			}
		});

	}

	getZaddrUpdateListener() {
		return this.uZaddrUpdated;
	}

}