157 lines
3.7 KiB
TypeScript

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import {
BehaviorSubject,
filter,
map,
Observable,
of,
switchMap,
take,
tap,
throwError,
} from 'rxjs';
import { Powerball } from '../models/powerball';
import { PowerballPagination } from '../models/powerball-pagination';
@Injectable({
providedIn: 'root',
})
export class PowerballService {
// Private
private __pagination = new BehaviorSubject<PowerballPagination | undefined>(
undefined
);
private __powerball = new BehaviorSubject<Powerball | undefined>(undefined);
private __powerballs = new BehaviorSubject<Powerball[] | undefined>(
undefined
);
/**
* Constructor
*/
constructor(private _httpClient: HttpClient) {}
// -----------------------------------------------------------------------------------------------------
// @ Accessors
// -----------------------------------------------------------------------------------------------------
/**
* Getter for pagination
*/
get pagination$(): Observable<PowerballPagination | undefined> {
return this.__pagination.asObservable();
}
/**
* Getter for powerball
*/
get powerball$(): Observable<Powerball | undefined> {
return this.__powerball.asObservable();
}
/**
* Getter for powerballs
*/
get powerballs$(): Observable<Powerball[] | undefined> {
return this.__powerballs.asObservable();
}
// -----------------------------------------------------------------------------------------------------
// @ Public methods
// -----------------------------------------------------------------------------------------------------
/**
* Get powerballs
*
*
* @param page
* @param size
* @param sort
* @param order
* @param search
*/
getPowerballs(
page: number = 0,
size: number = 10,
sort: string = 'nickname',
order: 'asc' | 'desc' | '' = 'asc',
search: string = ''
): Observable<{
pagination: PowerballPagination;
powerballs: Powerball[];
}> {
return this._httpClient
.get<{ pagination: PowerballPagination; powerballs: Powerball[] }>(
'api/apps/game/powerball/powerballs',
{
params: {
page: '' + page,
size: '' + size,
sort,
order,
search,
},
}
)
.pipe(
tap((response) => {
this.__pagination.next(response.pagination);
this.__powerballs.next(response.powerballs);
})
);
}
/**
* Get product by id
*/
getPowerballById(id: string | null): Observable<Powerball> {
return this.__powerballs.pipe(
take(1),
map((powerballs) => {
// Find the product
const powerball =
powerballs?.find((item) => item.id === id) || undefined;
// Update the product
this.__powerball.next(powerball);
// Return the product
return powerball;
}),
switchMap((product) => {
if (!product) {
return throwError('Could not found product with id of ' + id + '!');
}
return of(product);
})
);
}
/**
* Create product
*/
createPowerball(): Observable<Powerball> {
return this.powerballs$.pipe(
take(1),
switchMap((powerballs) =>
this._httpClient
.post<Powerball>('api/apps/game/powerball/product', {})
.pipe(
map((newPowerball) => {
// Update the powerballs with the new product
if (!!powerballs) {
this.__powerballs.next([newPowerball, ...powerballs]);
}
// Return the new product
return newPowerball;
})
)
)
);
}
}