Files
NowChess-Frontend/src/app/services/game-api.service.ts
T

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TypeScript

import { Injectable, inject } from '@angular/core';
import { HttpClient, HttpParams } from '@angular/common/http';
import { Observable } from 'rxjs';
import { environment } from '../../environments/environment';
import {
GameFull,
GameState,
GameStreamEvent,
LegalMovesResponse,
PlayerInfo
} from '../models/game.models';
import { StreamHandlerService } from './stream-handler.service';
@Injectable({ providedIn: 'root' })
export class GameApiService {
private readonly apiBase = environment.apiBaseUrl;
private readonly wsBase = environment.wsBaseUrl;
private readonly apiPath = environment.apiPath;
private readonly streamHandler = inject(StreamHandlerService);
constructor(private readonly http: HttpClient) {}
createGame(): Observable<GameFull> {
return this.http.post<GameFull>(`${this.apiBase}${this.apiPath}`, {});
}
createGameVsBot(difficulty: 'easy' | 'medium' | 'hard' = 'medium'): Observable<GameFull> {
const playerColor = Math.random() > 0.5 ? 'white' : 'black';
const playerInfo: PlayerInfo = {
id: `player-${Date.now()}`,
displayName: 'You'
};
const botInfo: PlayerInfo = {
id: `bot-${difficulty}`,
displayName: `Bot (${difficulty})`
};
const payload =
playerColor === 'white'
? { white: playerInfo, black: botInfo }
: { white: botInfo, black: playerInfo };
return this.http.post<GameFull>(`${this.apiBase}${this.apiPath}`, payload);
}
getGame(gameId: string): Observable<GameFull> {
return this.http.get<GameFull>(`${this.apiBase}${this.apiPath}/${gameId}`);
}
makeMove(gameId: string, uci: string): Observable<GameState> {
return this.http.post<GameState>(`${this.apiBase}${this.apiPath}/${gameId}/move/${uci}`, {});
}
getLegalMoves(gameId: string, square?: string): Observable<LegalMovesResponse> {
let params = new HttpParams();
if (square) {
params = params.set('square', square);
}
return this.http.get<LegalMovesResponse>(`${this.apiBase}${this.apiPath}/${gameId}/moves`, { params });
}
importFen(fen: string): Observable<GameFull> {
return this.http.post<GameFull>(`${this.apiBase}${this.apiPath}/import/fen`, { fen });
}
importPgn(pgn: string): Observable<GameFull> {
return this.http.post<GameFull>(`${this.apiBase}${this.apiPath}/import/pgn`, { pgn });
}
private resolveWsBase(): string {
if (this.wsBase) {
return this.wsBase;
}
const wsProtocol = window.location.protocol === 'https:' ? 'wss' : 'ws';
return `${wsProtocol}://${window.location.host}`;
}
streamGame(gameId: string): Observable<GameStreamEvent> {
const wsUrl = `${this.resolveWsBase()}${this.apiPath}/${gameId}/stream`;
const fallbackUrl = `${this.apiBase}${this.apiPath}/${gameId}/stream`;
return this.streamHandler.createGameStream(wsUrl, fallbackUrl, gameId);
}
}