import { Injectable } from '@angular/core';
import { select, Store } from '@ngrx/store';

import { Observable } from 'rxjs';

import { ErrorDto } from '@models/error';

import {
  Auth,
  CreateLoginDto,
  LoginDto,
  SendNewActivationTokenDto,
  TokenDto
} from '@models/auth';

import { State } from '../reducers';
import {
  selectAccount,
  selectError,
  selectIsAuthenticated,
  selectLoading,
  selectRegistered,
  selectToken
} from '../selectors';

import * as AuthActions from '../actions';

@Injectable()
export class AuthFacade {
  get account$(): Observable<Auth | null> {
    return this.store.pipe(select(selectAccount));
  }

  get error$(): Observable<ErrorDto | null> {
    return this.store.pipe(select(selectError));
  }

  get isAuthenticated$() {
    return this.store.pipe(select(selectIsAuthenticated));
  }

  get loading$(): Observable<boolean> {
    return this.store.pipe(select(selectLoading));
  }

  get registered$(): Observable<boolean> {
    return this.store.pipe(select(selectRegistered));
  }

  get token$(): Observable<TokenDto | null> {
    return this.store.pipe(select(selectToken));
  }

  constructor(private store: Store<State>) {}

  activateUser(token: string): void {
    this.store.dispatch(AuthActions.activateUser({ token }));
  }

  logged(): void {
    this.store.dispatch(AuthActions.logged());
  }

  login(credentials: LoginDto): void {
    this.store.dispatch(AuthActions.login({ credentials }));
  }

  logout(): void {
    this.store.dispatch(AuthActions.logout());
  }

  sendNewActivationToken(payload: SendNewActivationTokenDto): void {
    this.store.dispatch(AuthActions.newActivationToken({ payload }));
  }

  notActivationSent(): void {
    this.store.dispatch(AuthActions.notActivationSent());
  }

  reset(): void {
    this.store.dispatch(AuthActions.loginReset());
  }

  signup(account: CreateLoginDto): void {
    this.store.dispatch(AuthActions.signup({ account }));
  }

  signedUp(): void {
    this.store.dispatch(AuthActions.signedUp());
  }
}