380 lines
11 KiB
TypeScript
380 lines
11 KiB
TypeScript
import {AfterViewInit, Component, ElementRef, OnInit, OnDestroy, ViewChild} from '@angular/core';
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import {FormBuilder, FormGroup} from '@angular/forms';
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import { MatAutocompleteSelectedEvent } from '@angular/material/autocomplete';
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import { MatDialog } from '@angular/material/dialog';
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import {ActivatedRoute, Router} from '@angular/router';
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import {BehaviorSubject, fromEvent, Observable, of, of as observableOf, zip} from 'rxjs';
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import {PurchaseDataSource} from './purchase-datasource';
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import {Account} from '../core/account';
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import {VoucherService} from '../core/voucher.service';
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import {AccountService} from '../core/account.service';
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import {DbFile, Inventory, Voucher} from '../core/voucher';
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import * as moment from 'moment';
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import {AuthService} from '../auth/auth.service';
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import {ConfirmDialogComponent} from '../shared/confirm-dialog/confirm-dialog.component';
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import {ToasterService} from '../core/toaster.service';
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import {debounceTime, distinctUntilChanged, map, startWith, switchMap} from 'rxjs/operators';
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import {PurchaseDialogComponent} from './purchase-dialog.component';
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import {ImageDialogComponent} from '../shared/image-dialog/image-dialog.component';
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import {ProductService} from '../product/product.service';
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import {Product} from '../core/product';
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import {Hotkey, HotkeysService} from 'angular2-hotkeys';
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@Component({
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selector: 'app-purchase',
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templateUrl: './purchase.component.html',
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styleUrls: ['./purchase.component.css']
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})
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export class PurchaseComponent implements OnInit, AfterViewInit, OnDestroy {
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@ViewChild('accountElement', { static: true }) accountElement: ElementRef;
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@ViewChild('productElement', { static: true }) productElement: ElementRef;
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@ViewChild('dateElement', { static: true }) dateElement: ElementRef;
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public inventoryObservable = new BehaviorSubject<Inventory[]>([]);
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dataSource: PurchaseDataSource;
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form: FormGroup;
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voucher: Voucher;
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product: Product;
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accBal: any;
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displayedColumns = ['product', 'quantity', 'rate', 'tax', 'discount', 'amount', 'action'];
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accounts: Observable<Account[]>;
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products: Observable<Product[]>;
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constructor(
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private route: ActivatedRoute,
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private router: Router,
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private fb: FormBuilder,
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private dialog: MatDialog,
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private hotkeys: HotkeysService,
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private toaster: ToasterService,
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private auth: AuthService,
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private ser: VoucherService,
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private productSer: ProductService,
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private accountSer: AccountService
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) {
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this.createForm();
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this.listenToAccountAutocompleteChange();
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this.listenToProductAutocompleteChange();
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}
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ngOnInit() {
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this.route.data
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.subscribe((data: { voucher: Voucher }) => {
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this.loadVoucher(data.voucher);
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});
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this.hotkeys.add(new Hotkey('f2', (event: KeyboardEvent): boolean => {
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setTimeout(() => {
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this.dateElement.nativeElement.focus();
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}, 0);
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return false; // Prevent bubbling
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}, ['INPUT', 'SELECT', 'TEXTAREA']));
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this.hotkeys.add(new Hotkey('ctrl+s', (event: KeyboardEvent): boolean => {
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if (this.canSave()) {
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this.save();
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}
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return false; // Prevent bubbling
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}, ['INPUT', 'SELECT', 'TEXTAREA']));
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this.hotkeys.add(new Hotkey('ctrl+p', (event: KeyboardEvent): boolean => {
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if (this.voucher.id && !this.voucher.posted && this.auth.user.perms.indexOf('post-vouchers') !== -1) {
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this.post();
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}
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return false; // Prevent bubbling
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}, ['INPUT', 'SELECT', 'TEXTAREA']));
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}
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ngAfterViewInit() {
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this.focusAccount();
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}
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ngOnDestroy() {
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this.hotkeys.reset();
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}
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loadVoucher(voucher) {
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this.voucher = voucher;
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this.form.setValue({
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date: moment(this.voucher.date, 'DD-MMM-YYYY').toDate(),
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account: this.voucher.vendor,
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amount: Math.abs(this.voucher.inventories.map((x) => x.amount).reduce((p, c) => p + c, 0)),
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addRow: {
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product: '',
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quantity: '',
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price: '',
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tax: '',
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discount: ''
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},
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narration: this.voucher.narration
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});
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this.dataSource = new PurchaseDataSource(this.inventoryObservable);
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this.updateView();
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}
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focusAccount() {
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setTimeout(() => {
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this.accountElement.nativeElement.focus();
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}, 0);
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}
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addRow() {
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const formValue = this.form.get('addRow').value;
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const quantity = +(formValue.quantity);
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const price = +(formValue.price);
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const tax = +(formValue.tax);
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const discount = +(formValue.discount);
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if (this.product === null || quantity <= 0 || price <= 0) {
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return;
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}
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const oldFiltered = this.voucher.inventories.filter((x) => x.product.id === this.product.id);
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if (oldFiltered.length) {
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this.toaster.show('Danger', 'Product already added');
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return;
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}
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this.voucher.inventories.push({
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id: null,
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quantity: quantity,
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rate: price,
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tax: tax,
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discount: discount,
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amount: quantity * price * (1 + tax) * (1 - discount),
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product: this.product,
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batch: null
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});
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this.resetAddRow();
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this.updateView();
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}
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resetAddRow() {
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this.form.get('addRow').reset({
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product: null,
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quantity: '',
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price: '',
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tax: '',
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discount: ''
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});
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this.product = null;
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setTimeout(() => {
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this.productElement.nativeElement.focus();
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}, 0);
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}
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updateView() {
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this.inventoryObservable.next(this.voucher.inventories);
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this.form.get('amount').setValue(Math.abs(this.voucher.inventories.map((x) => x.amount).reduce((p, c) => p + c, 0)));
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}
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editRow(row: Inventory) {
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const dialogRef = this.dialog.open(PurchaseDialogComponent, {
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width: '750px',
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data: {inventory: Object.assign({}, row)}
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});
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dialogRef.afterClosed().subscribe((result: boolean | Inventory) => {
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if (!result) {
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return;
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}
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const j = result as Inventory;
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if (j.product.id !== row.product.id && this.voucher.inventories.filter((x) => x.product.id === j.product.id).length) {
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return;
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}
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Object.assign(row, j);
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this.updateView();
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});
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}
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deleteRow(row: Inventory) {
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this.voucher.inventories.splice(this.voucher.inventories.indexOf(row), 1);
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this.updateView();
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}
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createForm() {
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this.form = this.fb.group({
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date: '',
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account: '',
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amount: {value: '', disabled: true},
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addRow: this.fb.group({
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product: '',
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quantity: '',
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price: '',
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tax: '',
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discount: ''
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}),
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narration: ''
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});
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this.accBal = null;
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}
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canSave() {
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if (!this.voucher.id) {
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return true;
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} else if (this.voucher.posted && this.auth.user.perms.indexOf('edit-posted-vouchers') !== -1) {
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return true;
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} else {
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return this.voucher.user.id === this.auth.user.id || this.auth.user.perms.indexOf("edit-other-user's-vouchers") !== -1;
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}
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}
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post() {
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this.ser.post(this.voucher.id)
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.subscribe(
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(result) => {
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this.loadVoucher(result);
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this.toaster.show('Success', 'Voucher Posted');
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},
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(error) => {
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this.toaster.show('Danger', error);
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}
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);
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}
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save() {
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const voucher: Voucher = this.getVoucher();
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this.ser.saveOrUpdate(voucher)
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.subscribe(
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(result) => {
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this.toaster.show('Success', '');
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if (voucher.id === result.id) {
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this.loadVoucher(result);
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} else {
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this.router.navigate(['/purchase', result.id]);
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}
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},
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(error) => {
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this.toaster.show('Danger', error);
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}
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);
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}
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getVoucher(): Voucher {
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const formModel = this.form.value;
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this.voucher.date = moment(formModel.date).format('DD-MMM-YYYY');
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this.voucher.vendor = formModel.account;
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this.voucher.narration = formModel.narration;
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return this.voucher;
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}
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delete() {
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this.ser.delete(this.voucher.id)
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.subscribe(
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(result) => {
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this.toaster.show('Success', '');
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this.router.navigate(['/purchase'], {replaceUrl: true});
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},
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(error) => {
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this.toaster.show('Danger', error);
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}
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);
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}
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confirmDelete(): void {
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const dialogRef = this.dialog.open(ConfirmDialogComponent, {
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width: '250px',
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data: {title: 'Delete Voucher?', content: 'Are you sure? This cannot be undone.'}
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});
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dialogRef.afterClosed().subscribe((result: boolean) => {
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if (result) {
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this.delete();
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}
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});
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}
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listenToAccountAutocompleteChange(): void {
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const control = this.form.get('account');
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this.accounts = control.valueChanges
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.pipe(
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startWith(null),
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map(x => (x !== null && x.length >= 1) ? x : null),
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debounceTime(150),
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distinctUntilChanged(),
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switchMap(x => (x === null) ? observableOf([]) : this.accountSer.autocomplete(x))
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);
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}
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listenToProductAutocompleteChange(): void {
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const control = this.form.get('addRow').get('product');
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this.products = control.valueChanges
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.pipe(
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startWith(null),
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map(x => (x !== null && x.length >= 1) ? x : null),
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debounceTime(150),
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distinctUntilChanged(),
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switchMap(x => (x === null) ? observableOf([]) : this.productSer.autocomplete(x))
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);
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}
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displayAccount(account?: Account): string | undefined {
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return account ? account.name : undefined;
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}
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accountSelected(event: MatAutocompleteSelectedEvent): void {
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this.form.get('account').setValue(event.option.value);
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}
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displayProductName(product?: Product): string | undefined {
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return product ? product.name : undefined;
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}
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productSelected(event: MatAutocompleteSelectedEvent): void {
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this.product = event.option.value;
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this.form.get('addRow').get('price').setValue(this.product.price);
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}
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zoomImage(file: DbFile) {
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this.dialog.open(ImageDialogComponent, {
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width: '750px',
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data: file.resized
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});
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}
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deleteImage(file: DbFile) {
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const index = this.voucher.files.indexOf(file);
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this.voucher.files.splice(index, 1);
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}
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detectFiles(event) {
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const files = event.target.files;
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if (files) {
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for (const file of files) {
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const reader = new FileReader();
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reader.onload = (e: any) => {
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zip(of(e.target.result),
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this.resizeImage(e.target.result, 100, 150),
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this.resizeImage(e.target.result, 825, 1170)
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).subscribe(
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val => this.voucher.files.push({id: null, thumbnail: val[1], resized: val[2]})
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);
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};
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reader.readAsDataURL(file);
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}
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}
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}
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resizeImage(image, MAX_WIDTH, MAX_HEIGHT) {
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const canvas = document.createElement('canvas');
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const ctx = canvas.getContext('2d');
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const img = new Image();
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const ex = fromEvent(img, 'load').pipe(
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map((e) => {
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let width = img.naturalWidth,
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height = img.naturalHeight;
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const ratio = Math.min(1, MAX_WIDTH / width, MAX_HEIGHT / height);
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if (ratio === 1) {
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return image;
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}
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width *= ratio;
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height *= ratio;
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canvas.width = width;
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canvas.height = height;
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ctx.drawImage(img, 0, 0, width, height);
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return canvas.toDataURL('image/jpeg', 0.95);
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})
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);
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img.src = image;
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return ex;
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}
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}
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