import { Component, OnInit } from '@angular/core';
import { RootService } from '../../../_services/root.service';
import { StockService } from '../stock.service';
import { NotificationService } from '../../../_services/notification.service';
import { GridComponent, GridDataResult, DataStateChangeEvent } from '@progress/kendo-angular-grid';
import { process, State } from '@progress/kendo-data-query';
import { StockDemandMasterViewModel } from '../MedStock.class';
import { AuthenticationService } from '../../../_services/authentication.service';
import { LocalService } from '../../../_services/local.service';

@Component({
  selector: 'app-stock-demand',
  templateUrl: './stock-demand.component.html',
  styles: []
})
export class StockDemandComponent implements OnInit {
  public MedList: any[] = [];
  public saving = false;
  public yearList = [2019, 2020]
  public loading = false;

  public stockM: StockDemandMasterViewModel = new StockDemandMasterViewModel();

  public state: State = {
    // skip: 0,
    //take: 5,

    // Initial filter descriptor
    filter: {
      logic: 'and',
      filters: [{ field: 'Name', operator: 'contains', value: '' }]
    }
  };
  public gridData: GridDataResult = process(this.MedList, this.state);

  public dataStateChange(state: DataStateChangeEvent): void {
    this.state = state;
    this.gridData = process(this.MedList, this.state);
  }

  constructor(private _authenticationService: AuthenticationService,
    private _rootService: RootService,
    private _stockService: StockService,
    public _notificationService: NotificationService,
    private _localService: LocalService) { }

  ngOnInit() {
    this.stockM.Year = new Date().getFullYear();
    this.drpYearOnChange();
  }

  drpYearOnChange() {
    this.loading = true;
    this._stockService.getExistingDemands(this.stockM.Year).subscribe(
      (res: any) => {
        if (res) {
          this.stockM = res;
          this.loading = false;

        }
      },
      err => {
        this.loading = false;
        this.handleError(err);

      }
    );
  }

  saveDemand(obj: any) {
    debugger;
    this.saving = true;
    obj.DemandMaster = new StockDemandMasterViewModel();
    obj.DemandMaster.Year = this.stockM.Year;

    this._stockService.saveDemand(obj).subscribe(
      (res: any) => {
        this.saving = false;
        this._notificationService.notify("success", "Demand Save Successfully");
      },
      err => {
        this.saving = false;
        this.handleError(err);
      }
    );
  }

  private handleError(err: any) {
    if (err.status == 403) {
      this._authenticationService.logout();
    }
  }
}