brewman/overlord/src/app/product/product-detail/product-detail.component.ts

import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core';
import { FormControl, FormGroup } from '@angular/forms';
import { MatDialog } from '@angular/material/dialog';
import { ActivatedRoute, Router } from '@angular/router';
import { BehaviorSubject } from 'rxjs';

import { Product, StockKeepingUnit } from '../../core/product';
import { ProductGroup } from '../../core/product-group';
import { ToasterService } from '../../core/toaster.service';
import { ConfirmDialogComponent } from '../../shared/confirm-dialog/confirm-dialog.component';
import { ProductService } from '../product.service';

import { ProductDetailDatasource } from './product-detail-datasource';
import { ProductDetailDialogComponent } from './product-detail-dialog.component';

@Component({
  selector: 'app-product-detail',
  templateUrl: './product-detail.component.html',
  styleUrls: ['./product-detail.component.css'],
})
export class ProductDetailComponent implements OnInit, AfterViewInit {
  @ViewChild('nameElement', { static: true }) nameElement?: ElementRef;
  form: FormGroup<{
    code: FormControl<string | number>;
    name: FormControl<string | null>;
    fractionUnits: FormControl<string | null>;
    addRow: FormGroup<{
      units: FormControl<string | null>;
      fraction: FormControl<string | null>;
      productYield: FormControl<string | null>;
      costPrice: FormControl<string | null>;
      salePrice: FormControl<string | null>;
    }>;
    isPurchased: FormControl<boolean>;
    isSold: FormControl<boolean>;
    isActive: FormControl<boolean>;
    productGroup: FormControl<string | null>;
  }>;

  productGroups: ProductGroup[] = [];
  public skus = new BehaviorSubject<StockKeepingUnit[]>([]);
  dataSource: ProductDetailDatasource = new ProductDetailDatasource(this.skus);
  item: Product = new Product();

  displayedColumns = ['units', 'fraction', 'yield', 'costPrice', 'salePrice', 'action'];

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private dialog: MatDialog,
    private toaster: ToasterService,
    private ser: ProductService,
  ) {
    this.form = new FormGroup({
      code: new FormControl<string | number>({ value: 0, disabled: true }, { nonNullable: true }),
      name: new FormControl<string | null>(null),
      fractionUnits: new FormControl<string | null>(null),
      addRow: new FormGroup({
        units: new FormControl<string | null>(null),
        fraction: new FormControl<string | null>(null),
        productYield: new FormControl<string | null>(null),
        costPrice: new FormControl<string | null>(null),
        salePrice: new FormControl<string | null>(null),
      }),
      isPurchased: new FormControl<boolean>(true, { nonNullable: true }),
      isSold: new FormControl<boolean>(true, { nonNullable: true }),
      isActive: new FormControl<boolean>(true, { nonNullable: true }),
      productGroup: new FormControl<string | null>(null),
    });
  }

  ngOnInit() {
    this.route.data.subscribe((value) => {
      const data = value as { item: Product; productGroups: ProductGroup[] };

      this.productGroups = data.productGroups;
      this.showItem(data.item);
    });
    this.dataSource = new ProductDetailDatasource(this.skus);
    this.skus.next(this.item.skus);
  }

  showItem(item: Product) {
    this.item = item;
    this.form.setValue({
      code: this.item.code || '(Auto)',
      name: this.item.name,
      fractionUnits: this.item.fractionUnits ?? '',
      addRow: {
        units: '',
        fraction: '',
        productYield: '',
        costPrice: '',
        salePrice: '',
      },
      isPurchased: this.item.isPurchased,
      isSold: this.item.isSold,
      isActive: this.item.isActive,
      productGroup: this.item.productGroup ? this.item.productGroup.id ?? '' : '',
    });
  }

  ngAfterViewInit() {
    setTimeout(() => {
      if (this.nameElement) {
        this.nameElement.nativeElement.focus();
      }
    }, 0);
  }

  addRow() {
    const formValue = this.form.value.addRow;
    if (formValue === undefined) {
      return;
    }
    const fraction = Number(formValue.fraction);
    if (fraction < 1) {
      this.toaster.show('Danger', 'Fraction has to be >= 1');
      return;
    }
    const productYield = Number(formValue.productYield);
    if (productYield < 0 || productYield > 1) {
      this.toaster.show('Danger', 'Product Yield has to be > 0 and <= 1');
      return;
    }
    const costPrice = Number(formValue.costPrice);
    if (costPrice < 0) {
      this.toaster.show('Danger', 'Price has to be >= 0');
      return;
    }
    const salePrice = Number(formValue.salePrice);
    if (salePrice < 0) {
      this.toaster.show('Danger', 'Sale Price has to be >= 0');
      return;
    }
    this.item.skus.push(
      new StockKeepingUnit({
        units: formValue.units ?? '',
        fraction,
        productYield,
        costPrice,
        salePrice,
      }),
    );
    this.skus.next(this.item.skus);
    this.resetAddRow();
  }

  resetAddRow() {
    this.form.controls.addRow.reset();
  }

  editRow(row: StockKeepingUnit) {
    const dialogRef = this.dialog.open(ProductDetailDialogComponent, {
      width: '750px',
      data: {
        item: { ...row },
        isSold: this.item.isSold,
        isPurchased: this.item.isPurchased,
      },
    });

    dialogRef.afterClosed().subscribe((result: boolean | StockKeepingUnit) => {
      if (!result) {
        return;
      }
      const j = result as StockKeepingUnit;
      Object.assign(row, j);
      this.skus.next(this.item.skus);
      this.resetAddRow();
    });
  }

  deleteRow(row: StockKeepingUnit) {
    this.item.skus.splice(this.item.skus.indexOf(row), 1);
    this.skus.next(this.item.skus);
  }

  save() {
    this.ser.saveOrUpdate(this.getItem()).subscribe(
      () => {
        this.toaster.show('Success', '');
        this.router.navigateByUrl('/products');
      },
      (error) => {
        this.toaster.show('Danger', error);
      },
    );
  }

  delete() {
    this.ser.delete(this.item.id as string).subscribe(
      () => {
        this.toaster.show('Success', '');
        this.router.navigateByUrl('/products');
      },
      (error) => {
        this.toaster.show('Danger', error);
      },
    );
  }

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

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

  getItem(): Product {
    const formModel = this.form.value;
    this.item.name = formModel.name ?? '';
    this.item.fractionUnits = formModel.fractionUnits ?? '';
    this.item.isPurchased = formModel.isPurchased ?? true;
    this.item.isSold = formModel.isSold ?? false;
    this.item.isActive = formModel.isActive ?? true;
    if (this.item.productGroup === null || this.item.productGroup === undefined) {
      this.item.productGroup = new ProductGroup();
    }
    this.item.productGroup.id = formModel.productGroup ?? '';
    return this.item;
  }
}