745c5c4e3a
- Add ws/ directory: server setup, auth, router, connections map - WebSocket auth rejects upgrade with 401 if no Better Auth session - Router parses WsClientMessageSchema, dispatches to handlers, two-layer error handling (AppError -> WsErrorSchema, unknown -> 500) - connections.ts: in-memory Map<lobbyId, Map<userId, WebSocket>> with addConnection, removeConnection, broadcastToLobby - LobbyGameStore interface + InMemoryLobbyGameStore implementation following existing GameSessionStore pattern - multiplayerGameService: generateMultiplayerQuestions() decoupled from single-player flow, hardcoded defaults en->it nouns easy 3 rounds - handleLobbyJoin and handleLobbyLeave implemented - WsErrorSchema added to shared schemas - server.ts switched to createServer + setupWebSocket
75 lines
2.1 KiB
TypeScript
75 lines
2.1 KiB
TypeScript
import { randomUUID } from "crypto";
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import { getGameTerms, getDistractors } from "@lila/db";
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import type {
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GameQuestion,
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AnswerOption,
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SupportedLanguageCode,
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SupportedPos,
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DifficultyLevel,
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} from "@lila/shared";
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// TODO(game-mode-slice): replace with lobby settings when mode selection lands
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const MULTIPLAYER_DEFAULTS = {
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sourceLanguage: "en" as SupportedLanguageCode,
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targetLanguage: "it" as SupportedLanguageCode,
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pos: "noun" as SupportedPos,
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difficulty: "easy" as DifficultyLevel,
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rounds: 3,
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};
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const shuffle = <T>(array: T[]): T[] => {
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const result = [...array];
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for (let i = result.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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const temp = result[i]!;
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result[i] = result[j]!;
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result[j] = temp;
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}
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return result;
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};
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export type MultiplayerQuestion = GameQuestion & { correctOptionId: number };
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export const generateMultiplayerQuestions = async (): Promise<
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MultiplayerQuestion[]
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> => {
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const correctAnswers = await getGameTerms(
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MULTIPLAYER_DEFAULTS.sourceLanguage,
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MULTIPLAYER_DEFAULTS.targetLanguage,
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MULTIPLAYER_DEFAULTS.pos,
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MULTIPLAYER_DEFAULTS.difficulty,
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MULTIPLAYER_DEFAULTS.rounds,
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);
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const questions: MultiplayerQuestion[] = await Promise.all(
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correctAnswers.map(async (correctAnswer) => {
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const distractorTexts = await getDistractors(
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correctAnswer.termId,
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correctAnswer.targetText,
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MULTIPLAYER_DEFAULTS.targetLanguage,
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MULTIPLAYER_DEFAULTS.pos,
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MULTIPLAYER_DEFAULTS.difficulty,
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3,
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);
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const optionTexts = [correctAnswer.targetText, ...distractorTexts];
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const shuffledTexts = shuffle(optionTexts);
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const correctOptionId = shuffledTexts.indexOf(correctAnswer.targetText);
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const options: AnswerOption[] = shuffledTexts.map((text, index) => ({
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optionId: index,
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text,
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}));
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return {
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questionId: randomUUID(),
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prompt: correctAnswer.sourceText,
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gloss: correctAnswer.sourceGloss,
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options,
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correctOptionId,
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};
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}),
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);
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return questions;
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};
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