Angular 2 paging component utilizing the router

paging.component.ts

import {Component, Input, OnInit} from '@angular/core';

@Component({
    selector: 'paging',
    templateUrl: './paging.component.html',
    styleUrls: ['./paging.component.css']
})
export class PagingComponent implements OnInit {

    @Input()
    prevLabel: string;
    @Input()
    separator: string;
    @Input()
    nextLabel: string;

    private currentPage: number;
    private totalPages: number;

    private linkPrefix: string;
    private prevRouterLink: Array<any> = [];
    private nextRouterLink: Array<any> = [];

    constructor() {
        this.linkPrefix = '/news/page';
    }

    ngOnInit(): void {
        this.currentPage = 1;
        this.totalPages = 1;
    }

    init(currentPage: number, totalPages: number) {
        this.currentPage = currentPage;
        this.totalPages = totalPages;

        this.prevRouterLink = [];
        this.nextRouterLink = [];

        this.currentPage = !this.currentPage ? 1 : this.currentPage;
        
        this.prevRouterLink.push(this.linkPrefix);
        this.prevRouterLink.push(this.currentPage - 1);
        
        this.nextRouterLink.push(this.linkPrefix);
        this.nextRouterLink.push(this.currentPage + 1);
    }
}