barker/bookie/src/app/section-printers/section-printer.component.ts

import { Component, ElementRef, OnInit, ViewChild } from '@angular/core';
import { AbstractControl, FormArray, FormBuilder, FormGroup } from '@angular/forms';
import { MatDialog } from '@angular/material/dialog';
import { MatSelectChange } from '@angular/material/select';
import { ActivatedRoute, Router } from '@angular/router';
import { BehaviorSubject } from 'rxjs';
import { map } from 'rxjs/operators';

import { Printer } from '../core/printer';
import { Section } from '../core/section';
import { SectionPrinter } from '../core/section-printer';
import { ToasterService } from '../core/toaster.service';
import { ConfirmDialogComponent } from '../shared/confirm-dialog/confirm-dialog.component';

import { SectionPrinterDataSource } from './section-printer-datasource';
import { SectionPrinterService } from './section-printer.service';

@Component({
  selector: 'app-section-printer',
  templateUrl: './section-printer.component.html',
  styleUrls: ['./section-printer.component.css'],
})
export class SectionPrinterComponent implements OnInit {
  @ViewChild('section', { static: true }) sectionElement?: ElementRef;
  form: FormGroup;
  public listObservable = new BehaviorSubject<SectionPrinter[]>([]);
  dataSource: SectionPrinterDataSource = new SectionPrinterDataSource(this.listObservable);
  list: SectionPrinter[] = [];
  sections: Section[] = [];
  printers: Printer[] = [];
  sectionId = '';
  displayedColumns = ['saleCategory', 'printer', 'copies'];

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private fb: FormBuilder,
    private toaster: ToasterService,
    private dialog: MatDialog,
    private ser: SectionPrinterService,
  ) {
    // Create form
    this.form = this.fb.group({
      section: '',
      saleCategories: this.fb.array([]),
    });
    route.params.pipe(map((p) => p.id)).subscribe((x) => {
      this.sectionId = x;
    });
  }

  ngOnInit() {
    this.route.data.subscribe((value) => {
      const data = value as { list: SectionPrinter[]; sections: Section[]; printers: Printer[] };
      this.sections = data.sections;
      this.printers = data.printers;
      this.showItem(data.list);
      this.dataSource = new SectionPrinterDataSource(this.listObservable);
      this.listObservable.next(this.list);
    });
  }

  showItem(list: SectionPrinter[]) {
    this.list = list;
    (this.form.get('section') as AbstractControl).setValue(this.sectionId);
    this.form.setControl(
      'saleCategories',
      this.fb.array(
        this.list.map((x) =>
          this.fb.group({
            saleCategory: x.saleCategory?.name || 'Default',
            printer: x.printer?.id,
            copies: `${x.copies}`,
          }),
        ),
      ),
    );
  }

  save() {
    this.ser.save(this.sectionId, this.getItem()).subscribe(
      (result: SectionPrinter[]) => {
        this.toaster.show('Success', '');
        this.showItem(result);
      },
      (error) => {
        this.toaster.show('Error', error);
      },
    );
  }

  delete() {
    this.ser.delete(this.sectionId).subscribe(
      () => {
        this.toaster.show('Success', '');
      },
      (error) => {
        this.toaster.show('Error', error);
      },
    );
  }

  confirmDelete(): void {
    const dialogRef = this.dialog.open(ConfirmDialogComponent, {
      width: '250px',
      data: {
        title: 'Delete all printers for this section?',
        content: 'Are you sure? This cannot be undone.',
      },
    });

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

  getItem(): SectionPrinter[] {
    const formModel = this.form.value;
    this.sectionId = formModel.section;
    const array = this.form.get('saleCategories') as FormArray;
    this.list.forEach((item, index) => {
      const cont = array.controls[index].value;
      if (cont.printer === null || cont.printer === undefined) {
        item.printer = null;
      } else {
        item.printer = { id: cont.printer };
      }
      item.copies = +cont.copies;
    });
    return this.list;
  }

  show(val: MatSelectChange) {
    this.router.navigate(['/section-printers', val.value]);
  }
}