47 lines
1.7 KiB
TypeScript
47 lines
1.7 KiB
TypeScript
import { Injectable } from '@angular/core';
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import { GameFull, GameState, GameStatus } from '../models/game.models';
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export interface GameCompletion {
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isFinished: boolean;
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message: string;
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}
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@Injectable({ providedIn: 'root' })
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export class GameCompletionService {
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getGameCompletion(game: GameFull | null, state: GameState | null): GameCompletion {
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if (!game || !state) {
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return { isFinished: false, message: '' };
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}
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const status = state.status;
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const gameEndingStatuses: GameStatus[] = ['checkmate', 'stalemate', 'resign', 'draw', 'insufficientMaterial'];
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if (!gameEndingStatuses.includes(status)) {
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return { isFinished: false, message: '' };
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}
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const message = this.buildCompletionMessage(status, state, game);
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return { isFinished: true, message };
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}
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private buildCompletionMessage(status: GameStatus, state: GameState, game: GameFull): string {
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switch (status) {
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case 'checkmate':
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const winner = state.winner === 'white' ? game.white.displayName : game.black.displayName;
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return `Checkmate! ${winner} wins!`;
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case 'stalemate':
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return 'Stalemate! The game is a draw.';
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case 'resign':
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const resignedPlayer = state.winner === 'white' ? game.black.displayName : game.white.displayName;
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const resignedWinner = state.winner === 'white' ? game.white.displayName : game.black.displayName;
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return `${resignedPlayer} resigned. ${resignedWinner} wins!`;
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case 'draw':
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return 'Draw! The game ended in a draw.';
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case 'insufficientMaterial':
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return 'Insufficient material! The game is a draw.';
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default:
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return 'Game ended!';
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}
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}
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}
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