import { Injectable } from '@angular/core';
import { Router, NavigationExtras } from '@angular/router';

@Injectable()
export class FixRoute {

    constructor(
        private router: Router
    ) {}

    navigate(paths: any[], extras: NavigationExtras = { skipLocationChange: false }): Promise<boolean> {
        if (!extras.relativeTo) {
            return this.router.navigate(paths, extras);
        }

        let segments = extras.relativeTo.snapshot.pathFromRoot.slice(1).map(p => p.routeConfig.path);
        paths.forEach(s => {
            const pathParts = s.split('/');
            pathParts.forEach(p => {
                if (p !== '..' && p != '.') {
                    segments.push(p);
                } else if (s !== '.') {
                    segments.pop()
                }
            });
        });

        extras = Object.assign({}, extras);
        delete extras.relativeTo;
        return this.router.navigate(segments, extras);
    }
}