397 lines
13 KiB
TypeScript
397 lines
13 KiB
TypeScript
import { SelectionModel } from '@angular/cdk/collections';
|
|
import { Injectable } from '@angular/core';
|
|
import { MatDialog } from '@angular/material/dialog';
|
|
import { BehaviorSubject, throwError } from 'rxjs';
|
|
import { Observable } from 'rxjs';
|
|
import { tap } from 'rxjs/operators';
|
|
|
|
import { BillViewItem } from '../core/bill-view-item';
|
|
import { ModifierCategory } from '../core/modifier-category';
|
|
import { Product } from '../core/product';
|
|
import { ReceivePaymentItem } from '../core/receive-payment-item';
|
|
import { SaleCategory } from '../core/sale-category';
|
|
import { Table } from '../core/table';
|
|
import { ToasterService } from '../core/toaster.service';
|
|
import { ModifierCategoryService } from '../modifier-categories/modifier-category.service';
|
|
import { MathService } from '../shared/math.service';
|
|
|
|
import { Bill } from './bills/bill';
|
|
import { Inventory } from './bills/inventory';
|
|
import { Kot } from './bills/kot';
|
|
import { VoucherType } from './bills/voucher-type';
|
|
import { VoucherService } from './bills/voucher.service';
|
|
import { ModifiersComponent } from './modifiers/modifiers.component';
|
|
|
|
@Injectable()
|
|
export class BillService {
|
|
public dataObs: BehaviorSubject<BillViewItem[]>;
|
|
public bill: Bill = new Bill();
|
|
public grossAmount: BehaviorSubject<number>;
|
|
public discountAmount: BehaviorSubject<number>;
|
|
public hhAmount: BehaviorSubject<number>;
|
|
public taxAmount: BehaviorSubject<number>;
|
|
public amount: Observable<number>;
|
|
public amountVal: number;
|
|
public selection = new SelectionModel<string>(true, []);
|
|
private amountBs: BehaviorSubject<number>;
|
|
private updateTable: boolean;
|
|
private allowDeactivate: boolean; // To disable Deactivate Guard on navigation after printing bill or kot.
|
|
|
|
constructor(
|
|
private dialog: MatDialog,
|
|
private toaster: ToasterService,
|
|
private math: MathService,
|
|
private ser: VoucherService,
|
|
private modifierCategoryService: ModifierCategoryService,
|
|
) {
|
|
this.dataObs = new BehaviorSubject<BillViewItem[]>([]);
|
|
this.grossAmount = new BehaviorSubject(0);
|
|
this.discountAmount = new BehaviorSubject(0);
|
|
this.hhAmount = new BehaviorSubject(0);
|
|
this.taxAmount = new BehaviorSubject(0);
|
|
this.amountBs = new BehaviorSubject(0);
|
|
this.amountVal = 0;
|
|
this.updateTable = true;
|
|
this.allowDeactivate = false;
|
|
this.amount = this.amountBs.pipe(tap((x) => (this.amountVal = x)));
|
|
}
|
|
|
|
displayBill(): void {
|
|
this.allowDeactivate = false;
|
|
const data = this.transformBillToView(this.bill);
|
|
this.dataObs.next(data);
|
|
this.updateAmounts();
|
|
}
|
|
|
|
transformBillToView(bill: Bill): BillViewItem[] {
|
|
return bill.kots
|
|
.map((k: Kot) => [
|
|
new BillViewItem({
|
|
kotId: k.id,
|
|
isKot: true,
|
|
info: k.id ? `Kot: ${k.code} / ${k.date} (${k.user.name})` : '== New Kot ==',
|
|
}),
|
|
...k.inventories.map(
|
|
(i) =>
|
|
new BillViewItem({
|
|
id: i.id,
|
|
kotId: k.id,
|
|
isKot: false,
|
|
productId: i.product.id,
|
|
isHappyHour: i.isHappyHour,
|
|
isPrinted: !!k.id,
|
|
info: `${i.product.name} @ ${i.price} - ${this.math.halfRoundEven(i.discount * 100, 2)}%`,
|
|
quantity: i.quantity,
|
|
modifiers: i.modifiers,
|
|
}),
|
|
),
|
|
])
|
|
.reduce((a, c) => a.concat(c), []);
|
|
}
|
|
|
|
loadData(bill: Bill, updateTable: boolean): void {
|
|
this.updateTable = updateTable;
|
|
bill.kots.push(new Kot());
|
|
this.bill = bill;
|
|
this.selection.clear();
|
|
this.displayBill();
|
|
}
|
|
|
|
minimum(productId: string, happyHour: boolean): number {
|
|
return this.bill.kots.reduce(
|
|
(t, k) =>
|
|
k.inventories.reduce(
|
|
(a, c) => (c.product.id === productId && c.isHappyHour === happyHour ? a + c.quantity : a),
|
|
0,
|
|
) + t,
|
|
0,
|
|
);
|
|
}
|
|
|
|
addProduct(product: Product, quantity: number, discount: number): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find((x) => x.product.id === product.id && x.isHappyHour === product.hasHappyHour);
|
|
if (quantity < 0) {
|
|
const minimum = this.minimum(product.id as string, product.hasHappyHour) + quantity;
|
|
if (minimum + quantity < 0) {
|
|
this.toaster.show('Error', 'Total quantity cannot be negative!');
|
|
return;
|
|
}
|
|
}
|
|
if (old !== undefined) {
|
|
old.quantity += quantity;
|
|
} else {
|
|
const item = new Inventory({
|
|
product,
|
|
quantity,
|
|
price: product.price,
|
|
isHappyHour: product.hasHappyHour,
|
|
taxRate: product.tax.rate,
|
|
tax: product.tax,
|
|
discount,
|
|
modifiers: [],
|
|
});
|
|
newKot.inventories.push(item);
|
|
this.modifierCategoryService.listForProduct(product.id as string).subscribe((result) => {
|
|
if (result.reduce((a: number, c: ModifierCategory) => a + c.minimum, 0)) {
|
|
this.showModifier(item);
|
|
}
|
|
});
|
|
}
|
|
this.displayBill();
|
|
}
|
|
|
|
showModifier(item: Inventory): void {
|
|
// [routerLink]="['/sales', 'modifiers', item.id]"
|
|
const dialogRef = this.dialog.open(ModifiersComponent, {
|
|
position: {
|
|
top: '10vh',
|
|
},
|
|
data: {
|
|
list: this.modifierCategoryService.listForProduct(item.product.id as string),
|
|
selected: item.modifiers,
|
|
},
|
|
});
|
|
|
|
dialogRef.afterClosed().subscribe((result) => {
|
|
if (result !== undefined) {
|
|
item.modifiers = result;
|
|
}
|
|
});
|
|
this.displayBill();
|
|
}
|
|
|
|
addOne(item: BillViewItem): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find(
|
|
(x) => x.product.id === item.productId && x.isHappyHour === item.isHappyHour,
|
|
) as Inventory;
|
|
old.quantity += 1;
|
|
this.displayBill();
|
|
}
|
|
|
|
quantity(item: BillViewItem, quantity: number): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find(
|
|
(x) => x.product.id === item.productId && x.isHappyHour === item.isHappyHour,
|
|
) as Inventory;
|
|
old.quantity = quantity;
|
|
this.displayBill();
|
|
}
|
|
|
|
subtractOne(item: BillViewItem, canEdit: boolean): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find(
|
|
(x) => x.product.id === item.productId && x.isHappyHour === item.isHappyHour,
|
|
) as Inventory;
|
|
if (item.quantity >= 1 || (canEdit && this.minimum(item.productId as string, item.isHappyHour) >= 1)) {
|
|
old.quantity -= 1;
|
|
} else if (item.quantity === 0) {
|
|
newKot.inventories.splice(newKot.inventories.indexOf(old), 1);
|
|
}
|
|
this.displayBill();
|
|
}
|
|
|
|
removeItem(item: BillViewItem): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find(
|
|
(x) => x.product.id === item.productId && x.isHappyHour === item.isHappyHour,
|
|
) as Inventory;
|
|
newKot.inventories.splice(newKot.inventories.indexOf(old), 1);
|
|
this.displayBill();
|
|
}
|
|
|
|
modifier(item: BillViewItem): void {
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
const old = newKot.inventories.find(
|
|
(x) => x.product.id === item.productId && x.isHappyHour === item.isHappyHour,
|
|
) as Inventory;
|
|
this.showModifier(old);
|
|
}
|
|
|
|
discount(discounts: { id: string; name: string; discount: number }[]): void {
|
|
for (const kot of this.bill.kots) {
|
|
const noDiscount = kot.inventories.filter((x) => x.isHappyHour).map((x) => x.product.id as string);
|
|
for (const inventory of kot.inventories) {
|
|
const e = discounts.find((d) => d.id === (inventory.product.saleCategory as SaleCategory).id);
|
|
if (e === undefined || noDiscount.indexOf(inventory.product.id as string) !== -1) {
|
|
continue;
|
|
}
|
|
inventory.discount = e.discount;
|
|
}
|
|
}
|
|
this.displayBill();
|
|
}
|
|
|
|
printKot(guestBookId: string | null): Observable<boolean> {
|
|
const item = JSON.parse(JSON.stringify(this.bill));
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
if (newKot.inventories.filter((x) => x.quantity !== 0).length === 0) {
|
|
return throwError('Cannot print a blank KOT\nPlease add some products!');
|
|
}
|
|
if (!this.happyHourItemsBalanced() || this.happyHourItemsMoreThanRegular()) {
|
|
return throwError('Happy hour products are not balanced.');
|
|
}
|
|
return this.ser
|
|
.saveOrUpdate(item, VoucherType.Kot, guestBookId, this.updateTable)
|
|
.pipe(tap(() => (this.allowDeactivate = true)));
|
|
}
|
|
|
|
printBill(guest_book_id: string | null, voucherType: VoucherType): Observable<boolean> {
|
|
const item = JSON.parse(JSON.stringify(this.bill));
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
if (item.kots.length === 1 && newKot.inventories.length === 0) {
|
|
return throwError('Cannot print a blank Bill\nPlease add some products!');
|
|
}
|
|
if (!this.happyHourItemsBalanced() || this.happyHourItemsMoreThanRegular()) {
|
|
return throwError('Happy hour products are not balanced.');
|
|
}
|
|
return this.ser
|
|
.saveOrUpdate(item, voucherType, guest_book_id, this.updateTable)
|
|
.pipe(tap(() => (this.allowDeactivate = true)));
|
|
}
|
|
|
|
receivePayment(value: { choices: ReceivePaymentItem[]; reason: string }): Observable<boolean> {
|
|
return this.ser.receivePayment(this.bill.id as string, value.choices, value.reason, this.updateTable);
|
|
}
|
|
|
|
moveTable(table: Table): Observable<boolean> {
|
|
return this.ser.moveTable(this.bill.id as string, table);
|
|
}
|
|
|
|
mergeTable(table: Table): Observable<boolean> {
|
|
return this.ser.mergeTable(this.bill.id as string, table);
|
|
}
|
|
|
|
moveKot(kotId: string, table: Table): Observable<boolean> {
|
|
return this.ser.moveKotToNewTable(this.bill.id as string, kotId, table);
|
|
}
|
|
|
|
mergeKot(kotId: string, table: Table): Observable<boolean> {
|
|
return this.ser.mergeKotWithOldBill(this.bill.id as string, kotId, table);
|
|
}
|
|
|
|
cancelBill(reason: string): Observable<boolean> {
|
|
return this.ser.cancelBill(this.bill.id as string, reason, this.updateTable);
|
|
}
|
|
|
|
updateAmounts() {
|
|
this.grossAmount.next(
|
|
this.math.halfRoundEven(
|
|
this.bill.kots.reduce((t, k) => k.inventories.reduce((a, c) => a + c.price * c.quantity, 0) + t, 0),
|
|
),
|
|
);
|
|
this.hhAmount.next(
|
|
this.math.halfRoundEven(
|
|
this.bill.kots.reduce(
|
|
(t, k) => k.inventories.reduce((a, c) => a + (c.isHappyHour ? c.price : 0) * c.quantity, 0) + t,
|
|
0,
|
|
),
|
|
),
|
|
);
|
|
this.discountAmount.next(
|
|
this.math.halfRoundEven(
|
|
this.bill.kots.reduce(
|
|
(t, k) => k.inventories.reduce((a, c) => a + (c.isHappyHour ? 0 : c.price) * c.quantity * c.discount, 0) + t,
|
|
0,
|
|
),
|
|
),
|
|
);
|
|
this.taxAmount.next(
|
|
this.math.halfRoundEven(
|
|
this.bill.kots.reduce(
|
|
(t, k) =>
|
|
k.inventories.reduce(
|
|
(a, c) => a + (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * c.taxRate,
|
|
0,
|
|
) + t,
|
|
0,
|
|
),
|
|
),
|
|
);
|
|
this.amountBs.next(
|
|
this.math.halfRoundEven(
|
|
this.bill.kots.reduce(
|
|
(t, k) =>
|
|
k.inventories.reduce(
|
|
(a, c) =>
|
|
a +
|
|
this.math.halfRoundEven(
|
|
(c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * (1 + c.taxRate),
|
|
2,
|
|
),
|
|
0,
|
|
) + t,
|
|
0,
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
splitBill(inventories: string[], table: Table): Observable<boolean> {
|
|
return this.ser.splitBill(this.bill.id as string, inventories, table, this.updateTable);
|
|
}
|
|
|
|
public getInventories(saleCategories: string[]): { move: string[]; keep: string[] } {
|
|
const data: { move: string[]; keep: string[] } = { move: [], keep: [] };
|
|
for (const kot of this.bill.kots) {
|
|
for (const inv of kot.inventories) {
|
|
if (saleCategories.indexOf(inv.product.saleCategory?.id as string) === -1) {
|
|
data.keep.push(inv.id as string);
|
|
} else {
|
|
data.move.push(inv.id as string);
|
|
}
|
|
}
|
|
}
|
|
return data;
|
|
}
|
|
|
|
private happyHourItemsBalanced(): boolean {
|
|
for (const kot of this.bill.kots) {
|
|
const happyHourItems = kot.inventories
|
|
.filter((x) => x.isHappyHour)
|
|
.map((x) => ({ id: x.product.id as string, quantity: x.quantity }));
|
|
for (const item of happyHourItems) {
|
|
const q = kot.inventories.find(
|
|
(x) => !x.isHappyHour && x.product.id === item.id && x.quantity === item.quantity,
|
|
);
|
|
if (q === undefined) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private happyHourItemsMoreThanRegular(): boolean {
|
|
const invs: { [id: string]: { normal: number; happy: number } } = {};
|
|
for (const kot of this.bill.kots) {
|
|
for (const inventory of kot.inventories) {
|
|
const pid = inventory.product.id as string;
|
|
if (invs[pid] === undefined) {
|
|
invs[pid] = { normal: 0, happy: 0 };
|
|
}
|
|
if (inventory.isHappyHour) {
|
|
invs[pid].happy += inventory.quantity;
|
|
} else {
|
|
invs[pid].normal += inventory.quantity;
|
|
}
|
|
}
|
|
}
|
|
for (const [, value] of Object.entries(invs)) {
|
|
if (value.happy > value.normal) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public canDeactivate(): boolean {
|
|
if (this.allowDeactivate) {
|
|
return true;
|
|
}
|
|
const newKot = this.bill.kots.find((k) => k.id === undefined) as Kot;
|
|
return newKot.inventories.length === 0;
|
|
}
|
|
}
|