import { Component, OnInit, OnDestroy } from '@angular/core';
import { KeycloakService } from '../../utils/keycloak.service';
import { UserConfigService } from '../../utils/user-config.service';
import { Router } from '@angular/router';
import { split, lowerCase } from 'lodash';
import { Subscription } from 'rxjs';

@Component({
	selector: 'login',
	template: '',
	styles: [],
})
export class LoginComponent implements OnInit, OnDestroy {
	private appConfig;
	keyCloakSubscription: Subscription;
	userConfigDFSubscription: Subscription;
	userConfigDPOSubscription: Subscription;
	userConfigCPSubscription: Subscription;
	userConfigSubscription: Subscription;
    constructor(private userConfig: UserConfigService, private router: Router, private keycloak: KeycloakService) {}

    ngOnInit() {
		this.keyCloakSubscription = this.keycloak.cast.subscribe(isKeycloakInitialised => {
			if (isKeycloakInitialised) {
				this.initLogin();
			}
		});
	}

    initLogin(): void {
		if (localStorage.espToken || this.keycloak.getToken()) {
			this.router.navigate(['landing']);
		} else {
			this.keycloak.login();
		}
	}

	navigateToDefaultApp() {
		const i18n = this.appConfig['i18n']['translations'];
		let routeName = [split(lowerCase(i18n['header']), ' ', 2).join('-')];
		const queryParams = {};
		if (localStorage.currentLocation) {
			routeName = [localStorage.currentLocation];
			const searchQuery = localStorage.search;
			if (searchQuery && searchQuery !== '') {
				searchQuery
					.substr(1)
					.split('&')
					.forEach(item => {
						queryParams[item.split('=')[0]] = item.split('=')[1];
					});
			}
			localStorage.removeItem('currentLocation');
			localStorage.removeItem('search');
        }
        // this.router.navigate(routeName, { queryParams });
		this.router.navigate(["/predictive-ordering"], { queryParams });
	}

	ngOnDestroy() {
		this.userConfigDFSubscription?.unsubscribe();
		this.userConfigDPOSubscription?.unsubscribe();
		this.keyCloakSubscription?.unsubscribe();
		this.userConfigCPSubscription?.unsubscribe();
	}
}