import { Component, OnInit, ViewChild } from '@angular/core';
import { MatPaginator } from '@angular/material/paginator';
import { MatTableDataSource } from '@angular/material/table';
import { MatDialog } from '@angular/material/dialog';

import { AddAction } from '../../models/add-action.enum';
import { DropZoneResp } from '../../models/dropzone';
import { DropzoneService } from '../../services/dropzone.service';
import { ServiceComm } from '../../services/service-comm.service';
import { AuthenticationService } from '../../services/authentication.service';
import { NewDropZoneComponent } from '../new-drop-zone/new-drop-zone.component';

@Component({
  selector: 'app-list-of-dzs',
  templateUrl: './list-of-dzs.component.html',
  styleUrls: ['./list-of-dzs.component.css'],
})
export class ListOfDzsComponent implements OnInit {
  public displayedColumns: Array<string> = [
    'isfavorite',
    'name',
    'address',
    'type',
  ];
  public dataSourceTable: MatTableDataSource<DropZoneResp>;
  public isUserAdmin: boolean;
  public resultsLength = 0;
  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;

  constructor(private serviceApi: DropzoneService,
              private serviceComm: ServiceComm,
              private authenticationService: AuthenticationService,
              public dialog: MatDialog) { 
    this.isUserAdmin = this.authenticationService.currentUserValue.roles === "admin";
  }

  ngOnInit() {
    this.serviceComm.refreshRequest.subscribe((action) => {
      if (action === AddAction.Dropzone) {
        this.dialog.closeAll();
        this.getListOfDropZones();
      }
    });
    this.serviceComm.UpdatedComponentTitle('List of DZs');
    this.getListOfDropZones();
  }

  private getListOfDropZones() {
    this.serviceApi.getListOfDropZones().subscribe((data) => {
      setTimeout(() => {
        data.sort((a, b) => (b.isFavorite ? 1 : 0) - (a.isFavorite ? 1 : 0) || a.name.localeCompare(b.name));
        this.dataSourceTable = new MatTableDataSource<DropZoneResp>(data);
        this.dataSourceTable.paginator = this.paginator;
        this.resultsLength = data.length;
      }, 500);
    });
  }

  public setToFavorite(dropzone: DropZoneResp) {
    dropzone.isFavorite = this.serviceApi.SetFavoriteDropZone(dropzone);
    const data = this.dataSourceTable.data;
    data.sort((a, b) => (b.isFavorite ? 1 : 0) - (a.isFavorite ? 1 : 0));
    this.dataSourceTable = new MatTableDataSource<DropZoneResp>(data);
    this.dataSourceTable.paginator = this.paginator;
  }

  public removeToFavorite(dropzone: DropZoneResp) {
    dropzone.isFavorite = !this.serviceApi.RemoveFavoriteDropZone(dropzone);
    const data = this.dataSourceTable.data;
    data.sort((a, b) => (b.isFavorite ? 1 : 0) - (a.isFavorite ? 1 : 0));
    this.dataSourceTable = new MatTableDataSource<DropZoneResp>(data);
    this.dataSourceTable.paginator = this.paginator;
  }

  openDialogToAdd() {
    this.dialog.open(NewDropZoneComponent, {
      height: '400px',
      width: '600px',
    });
  }

  applyFilter(event: Event) {
    const filterValue = (event.target as HTMLInputElement).value;
    this.dataSourceTable.filter = filterValue.trim().toLowerCase();
  }
}