import { Component, OnInit } from '@angular/core';
import { FormControl, FormGroup } from '@angular/forms';
import { MatDialog } from '@angular/material/dialog';
import { ActivatedRoute, Router } from '@angular/router';
import * as moment from 'moment';
import { BehaviorSubject } from 'rxjs';
import { map } from 'rxjs/operators';

import { ToasterService } from '../../core/toaster.service';
import { ConfirmDialogComponent } from '../../shared/confirm-dialog/confirm-dialog.component';
import { GuestBook } from '../guest-book';
import { GuestBookList } from '../guest-book-list';
import { GuestBookService } from '../guest-book.service';

import { GuestBookListDataSource } from './guest-book-list-datasource';

@Component({
  selector: 'app-guest-book-list',
  templateUrl: './guest-book-list.component.html',
  styleUrls: ['./guest-book-list.component.sass'],
})
export class GuestBookListComponent implements OnInit {
  data: BehaviorSubject<GuestBook[]> = new BehaviorSubject<GuestBook[]>([]);
  dataSource: GuestBookListDataSource = new GuestBookListDataSource(this.data);
  form: FormGroup<{
    date: FormControl<Date>;
  }>;

  /** Columns displayed in the table. Columns IDs can be added, removed, or reordered. */
  displayedColumns = ['sno', 'name', 'phone', 'pax', 'date', 'action'];

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private dialog: MatDialog,
    private toaster: ToasterService,
    private ser: GuestBookService,
  ) {
    // Create form
    this.form = new FormGroup({
      date: new FormControl(new Date(), { nonNullable: true }),
    });
    this.listenToDateChange();
  }

  listenToDateChange(): void {
    this.form.controls.date.valueChanges.pipe(map((x) => moment(x).format('DD-MMM-YYYY'))).subscribe((x) =>
      this.ser.list(x).subscribe((list: GuestBookList) => {
        this.data.next(list.list);
      }),
    );
  }

  ngOnInit() {
    this.route.data.subscribe((value) => {
      const data = value as { list: GuestBookList };
      this.data.next(data.list.list);
      this.form.setValue({ date: moment(data.list.date, 'DD-MMM-YYYY').toDate() });
    });
    this.dataSource = new GuestBookListDataSource(this.data);
  }

  delete(id: string) {
    this.ser.delete(id).subscribe(
      () => {
        this.toaster.show('Success', '');
        this.router.navigateByUrl('/guest-book');
      },
      (error) => {
        this.toaster.show('Error', error);
      },
    );
  }

  confirmDelete(id: string): void {
    const dialogRef = this.dialog.open(ConfirmDialogComponent, {
      width: '250px',
      data: { title: 'Delete Guest Book Entry?', content: 'Are you sure? This cannot be undone.' },
    });

    dialogRef.afterClosed().subscribe((result: boolean) => {
      if (result) {
        this.delete(id);
      }
    });
  }
}