import { Component, OnInit, ViewChild } from '@angular/core';
import { TableListDataSource } from './table-list-datasource';
import { Table } from '../../core/table';
import { ActivatedRoute, Router } from '@angular/router';
import { MatTable } from "@angular/material";
import { MenuCategory } from "../../core/menu-category";
import { BehaviorSubject } from "rxjs";
import { CdkDragDrop, moveItemInArray } from "@angular/cdk/drag-drop";
import { ToasterService } from "../../core/toaster.service";
import { TableService } from "../table.service";

@Component({
  selector: 'app-table-list',
  templateUrl: './table-list.component.html',
  styleUrls: ['./table-list.component.css']
})
export class TableListComponent implements OnInit {
  @ViewChild('table', { static: true }) table: MatTable<MenuCategory>;
  dataSource: TableListDataSource;
  list: Table[];
  data: BehaviorSubject<Table[]>;
  /** Columns displayed in the table. Columns IDs can be added, removed, or reordered. */
  displayedColumns = ['name', 'seats', 'section', 'isActive'];

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private toaster: ToasterService,
    private ser: TableService
  ) {
    this.data = new BehaviorSubject([]);
    this.data.subscribe((data: Table[]) => {
      this.list = data;
    })
  }

  ngOnInit() {
    this.route.data
      .subscribe((data: { list: Table[] }) => {
        this.data.next(data.list);
      });
    this.dataSource = new TableListDataSource(this.data);
  }

  updateSortOrder() {
    this.ser.updateSortOrder(this.list)
      .subscribe(
        (result) => {
          this.toaster.show('Success', '');
        },
        (error) => {
          this.toaster.show('Danger', error.error);
        }
      );
  }

  dropTable(event: CdkDragDrop<MenuCategory[]>) {
    const prevIndex = this.list.indexOf(event.item.data);
    moveItemInArray(this.list, prevIndex, event.currentIndex);
    this.data.next(this.list);
  }
}