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

import { Product } 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';

@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;
  productGroups: ProductGroup[] = [];
  item: Product = new Product();

  constructor(
    private route: ActivatedRoute,
    private router: Router,
    private dialog: MatDialog,
    private fb: FormBuilder,
    private toaster: ToasterService,
    private ser: ProductService,
  ) {
    this.form = this.fb.group({
      code: { value: '', disabled: true },
      name: '',
      units: '',
      fraction: '',
      fractionUnits: '',
      productYield: '',
      price: '',
      salePrice: '',
      isPurchased: '',
      isSold: '',
      isActive: '',
      productGroup: '',
    });
  }

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

      this.productGroups = data.productGroups;
      this.showItem(data.item);
    });
  }

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

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

  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.units = formModel.units;
    this.item.fraction = +formModel.fraction;
    this.item.fractionUnits = formModel.fractionUnits;
    this.item.productYield = +formModel.productYield;
    this.item.price = +formModel.price;
    this.item.salePrice = +formModel.salePrice;
    this.item.isPurchased = formModel.isPurchased;
    this.item.isSold = formModel.isSold;
    this.item.isActive = formModel.isActive;
    this.item.productGroup.id = formModel.productGroup;
    return this.item;
  }
}