import {Component, OnInit} from '@angular/core';
import {Account, AccountService} from "app/core";
import {HttpErrorResponse, HttpHeaders, HttpResponse} from "@angular/common/http";
import {ITicket} from "app/shared/model/ticket.model";
import {TicketService} from "app/entities/ticket";
import {JhiAlertService, JhiEventManager, JhiParseLinks} from "ng-jhipster";
import {Subscription} from "rxjs";

@Component({
    selector: 'jhi-selfticket',
    templateUrl: './selfticket.component.html',
    styles: []
})
export class SelfticketComponent implements OnInit {

    tickets: ITicket[];

    account: Account;
    page: any;
    itemsPerPage: any;
    eventSubscriber: Subscription;
    predicate: any;
    reverse: any;
    links: any;
    totalItems: any;


    constructor(
        private accountService: AccountService,
        private ticketService: TicketService,
        private jhiAlertService: JhiAlertService,
        private eventManager: JhiEventManager,
        private parseLinks: JhiParseLinks
    ) {
    }

    ngOnInit() {
        this.loadSelf();
        this.accountService.identity().then((account: Account) => {
            this.account = account;
        });
        this.registerChangeInTickets();
    }

    loadSelf() {
        this.ticketService
            .querySelf({
                page: this.page - 1,
                size: this.itemsPerPage,
                sort: this.sort()
            })
            .subscribe(
                (res: HttpResponse<ITicket[]>) => this.paginateTickets(res.body, res.headers),
                (res: HttpErrorResponse) => this.onError(res.message)
            );

    }

    sort() {
        const result = [this.predicate + ',' + (this.reverse ? 'asc' : 'desc')];
        if (this.predicate !== 'id') {
            result.push('id');
        }
        return result;
    }

    protected paginateTickets(data: ITicket[], headers: HttpHeaders) {
        this.links = this.parseLinks.parse(headers.get('link'));
        this.totalItems = parseInt(headers.get('X-Total-Count'), 10);
        this.tickets = data;
    }

    protected onError(errorMessage: string) {
        this.jhiAlertService.error(errorMessage, null, null);
    }

    registerChangeInTickets() {
        this.eventSubscriber = this.eventManager.subscribe('ticketListModification', response => this.loadSelf());
    }

}