/*--------------------------------------------------------------------------------------------------------------
 *  Copyright (c) insite-gmbh. All rights reserved.
 *  Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------------------------*/
import { Injectable } from '@angular/core';
import { Router, Event, NavigationStart } from '@angular/router';
import { RoutingDisabler } from './RoutingDisabler';

@Injectable()
export class RoutingDisablerService {
    private _locks: Array<string> = new Array<string>(); 
    private _disabler: RoutingDisabler = null;

    get isDisabled(): boolean {
        return this._disabler !== null;
    }

    constructor(private _router: Router) {}

    public disable(lockId: string): void {
        if (!this._disabler) {
            this._disabler = new RoutingDisabler(this._router);
        }
        if (this._locks.indexOf(lockId) < 0) {
            this._locks.push(lockId);
        }
    }
    
    public enable(lockId: string): void {
        let idx = this._locks.indexOf(lockId);
        if (idx >= 0) {
            this._locks.splice(idx, 1);
            if (this._locks.length == 0) {
                this._disabler.reEnable();
                this._disabler = null;
            }
        }
    }
}