334 lines
9.8 KiB
TypeScript
334 lines
9.8 KiB
TypeScript
import { SelectionModel } from '@angular/cdk/collections';
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import { Injectable } from '@angular/core';
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import { MatDialog } from '@angular/material/dialog';
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import * as math from 'mathjs';
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import { BehaviorSubject } from 'rxjs';
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import { Observable } from 'rxjs/internal/Observable';
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import { BillViewItem } from '../core/bill-view-item';
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import { ModifierCategory } from '../core/modifier-category';
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import { Product } from '../core/product';
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import { Table } from '../core/table';
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import { ToasterService } from '../core/toaster.service';
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import { ModifierCategoryService } from '../modifier-categories/modifier-category.service';
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import { Bill } from './bills/bill';
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import { Inventory } from './bills/inventory';
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import { Kot } from './bills/kot';
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import { VoucherType } from './bills/voucher-type';
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import { VoucherService } from './bills/voucher.service';
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import { ModifiersComponent } from './modifiers/modifiers.component';
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@Injectable()
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export class BillService {
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public dataObs;
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public data: any[];
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public bill: Bill = new Bill();
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public netAmount: BehaviorSubject<number>;
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public discountAmount: BehaviorSubject<number>;
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public taxAmount: BehaviorSubject<number>;
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public amount: BehaviorSubject<number>;
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public selection = new SelectionModel<any>(true, []);
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constructor(
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private dialog: MatDialog,
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private toaster: ToasterService,
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private ser: VoucherService,
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private modifierCategoryService: ModifierCategoryService,
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) {
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this.data = [];
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this.dataObs = new BehaviorSubject<any[]>(this.data);
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this.netAmount = new BehaviorSubject(0);
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this.discountAmount = new BehaviorSubject(0);
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this.taxAmount = new BehaviorSubject(0);
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this.amount = new BehaviorSubject(0);
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}
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loadData(bill: Bill): void {
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this.bill = bill;
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const view: BillViewItem[][] = this.bill.kots.map((k: Kot) => [
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new BillViewItem({
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id: k.id,
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isKot: true,
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oldKot: true,
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info: `Kot: ${k.code} / ${k.date} (${k.user.name}) `,
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}),
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...k.inventories.map(
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(i) =>
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new BillViewItem({
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id: i.id,
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kotId: k.id,
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isKot: false,
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product: i.product,
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productId: i.product.id,
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isHappyHour: i.isHappyHour,
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isPrinted: true,
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info: `${i.product.name} @ ${i.price} - ${math.round(i.discount * 100, 2)}%`,
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price: i.price,
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quantity: i.quantity,
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discount: i.discount,
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taxRate: i.taxRate,
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tax: i.tax,
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modifiers: i.modifiers,
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}),
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),
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]);
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this.data = view.reduce((a, c) => a.concat(c), []);
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this.data.push({ isKot: true, newKot: true, info: '== New Kot ==' });
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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minimum(productId: string, happyHour: boolean): number {
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return this.data.reduce(
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(a, c) => (c.productId === productId && c.isHappyHour === happyHour ? a + c.quantity : a),
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0,
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);
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}
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addProduct(product: Product, quantity: number, discount: number): void {
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const old = this.data.find(
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(x) =>
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!x.isKot && !x.id && x.productId === product.id && x.isHappyHour === product.hasHappyHour,
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);
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if (quantity < 0) {
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const minimum = this.minimum(product.id as string, product.hasHappyHour) + quantity;
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if (minimum + quantity < 0) {
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this.toaster.show('Error', 'Total quantity cannot be negative!');
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return;
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}
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}
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if (old !== undefined) {
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old.quantity += quantity;
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} else {
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const item = {
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isKot: false,
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product,
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productId: product.id,
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isHappyHour: product.hasHappyHour,
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info: `${product.name} @ ${product.price} - ${0}%`,
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price: product.price,
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quantity,
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discount,
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taxRate: product.tax.rate,
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tax: product.tax,
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modifiers: [],
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};
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this.data.push(item);
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this.modifierCategoryService.listForProduct(product.id as string).subscribe((result) => {
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if (
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result.reduce((a: any, c: ModifierCategory) => {
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return a + c.minimum;
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}, 0)
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) {
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this.showModifier(item);
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}
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});
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}
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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showModifier(item: any): void {
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// [routerLink]="['/sales', 'modifiers', item.id]"
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const dialogRef = this.dialog.open(ModifiersComponent, {
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position: {
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top: '10vh',
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},
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data: {
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list: this.modifierCategoryService.listForProduct(item.productId),
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selected: item.modifiers,
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},
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});
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dialogRef.afterClosed().subscribe((result) => {
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if (result !== undefined) {
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item.modifiers = result;
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}
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});
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}
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addOne(item: any): void {
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item.quantity += 1;
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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quantity(item: any, quantity: number): void {
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item.quantity = quantity;
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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subtractOne(item: any, canEdit: boolean): void {
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if (item.quantity > 1 || (canEdit && this.minimum(item.productId, item.isHappyHour) >= 1)) {
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item.quantity -= 1;
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this.dataObs.next(this.data);
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this.updateAmounts();
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} else if (item.quantity === 0) {
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this.removeItem(item);
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}
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}
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removeItem(item: any): void {
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this.data.splice(this.data.indexOf(item), 1);
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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modifier(item: any): void {
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this.showModifier(item);
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}
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discount(discounts: { id: string; name: string; discount: number }[]): void {
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this.data.forEach((x) => {
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if (!x.isKot) {
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x.discount =
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(discounts.find((d) => d.id === x.product.saleCategory.id) as {
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id: string;
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name: string;
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discount: number;
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}).discount / 100;
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x.info = `${x.product.name} @ ${x.price} - ${math.round(x.discount * 100, 2)}%`;
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}
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});
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this.dataObs.next(this.data);
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this.updateAmounts();
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}
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private getKot(): Kot {
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return new Kot({
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inventories: this.data
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.filter((x) => !x.isKot && !x.isPrinted)
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.map(
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(y) =>
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new Inventory({
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product: y.product,
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quantity: y.quantity,
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price: y.price,
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isHappyHour: y.isHappyHour,
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discount: y.discount,
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modifiers: y.modifiers,
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taxRate: y.taxRate,
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tax: y.tax,
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}),
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),
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});
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}
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printKot(guestBookId: string | null): Observable<boolean> {
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const item = JSON.parse(JSON.stringify(this.bill));
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const newKot = this.getKot();
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if (newKot.inventories.length === 0) {
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this.toaster.show('Error', 'Cannot print a blank KOT\nPlease add some products!');
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}
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item.kots.push(newKot);
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return this.ser.saveOrUpdate(item, VoucherType.Kot, guestBookId, true);
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}
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printBill(guest_book_id: string | null, voucherType: VoucherType): Observable<boolean> {
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const item = JSON.parse(JSON.stringify(this.bill));
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item.kots.forEach((k: Kot) => {
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k.inventories.forEach((i: Inventory) => {
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i.discount = this.data.find((x) => !x.isKot && x.id === i.id).discount;
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});
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});
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item.kots.push(this.getKot());
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return this.ser.saveOrUpdate(item, voucherType, guest_book_id, true);
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}
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type() {
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return this.bill.voucherType;
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}
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receivePayment(
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amounts: { id: number; name: string; amount: number }[],
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name: string,
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): Observable<boolean> {
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return this.ser.receivePayment(this.bill.id as string, amounts, name, true);
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}
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moveTable(table: Table): Observable<boolean> {
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return this.ser.moveTable(this.bill.id as string, table);
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}
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mergeTable(table: Table): Observable<boolean> {
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return this.ser.mergeTable(this.bill.id as string, table);
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}
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moveKot(kotId: string, table: Table): Observable<boolean> {
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return this.ser.moveKotToNewTable(this.bill.id as string, kotId, table);
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}
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mergeKot(kotId: string, table: Table): Observable<boolean> {
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return this.ser.mergeKotWithOldBill(this.bill.id as string, kotId, table);
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}
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voidBill(reason: string): Observable<boolean> {
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return this.ser.voidBill(this.bill.id as string, reason, true);
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}
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updateAmounts() {
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this.netAmount.next(
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math.round(
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this.data
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.filter((x) => !x.isKot)
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.reduce((ca: number, c: any) => ca + (c.isHappyHour ? 0 : c.price) * c.quantity, 0),
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),
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);
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this.discountAmount.next(
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math.round(
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this.data
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.filter((x) => !x.isKot)
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.reduce(
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(ca: number, c: Inventory) =>
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ca + (c.isHappyHour ? 0 : c.price) * c.quantity * c.discount,
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0,
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),
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),
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);
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this.taxAmount.next(
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math.round(
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this.data
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.filter((x) => !x.isKot)
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.reduce(
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(ca: number, c: Inventory) =>
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ca + (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * c.taxRate,
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0,
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),
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),
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);
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this.amount.next(
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math.round(
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this.data
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.filter((x) => !x.isKot)
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.reduce(
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(ca: number, c: Inventory) =>
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ca + (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * (1 + c.taxRate),
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0,
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),
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),
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);
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}
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amountVal(): number {
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return math.round(
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this.bill.kots.reduce(
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(ka: number, k: Kot) =>
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ka +
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k.inventories.reduce(
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(ca: number, c: Inventory) =>
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ca + (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * (1 + c.taxRate),
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0,
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),
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0,
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),
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);
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}
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splitBill(table: Table): Observable<boolean> {
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const inventoriesToMove: string[] = this.selection.selected.map((x: any) => x.id);
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return this.ser.splitBill(this.bill.id as string, inventoriesToMove, table);
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}
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}
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