3e89a17b69
- 从 twitchio 3.x 降级到 2.10.0 (IRC-based) - 3.x 使用 EventSub API 需要更复杂的配置 - 2.x 使用 IRC 方式更简单可靠 - 简化 Twitch 配置，只需要 Token 和频道名 - 移除 client_id, client_secret, bot_id 要求 - 更新 .env.example 配置说明
152 lines
4.1 KiB
Python
152 lines
4.1 KiB
Python
"""
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FastAPI entry point for the interactive live-stream game backend.
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Configures the application, WebSocket routes, and lifecycle events.
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"""
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# Load .env file before any other imports
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from dotenv import load_dotenv
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load_dotenv()
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import asyncio
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import logging
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import os
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from contextlib import asynccontextmanager
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from pathlib import Path
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from fastapi import FastAPI, WebSocket, WebSocketDisconnect
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.staticfiles import StaticFiles
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from fastapi.responses import FileResponse
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from .server import ConnectionManager
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from .engine import GameEngine
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from .schemas import GameEvent, ClientMessage, EventType
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from .twitch_service import TwitchBot
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# Configure logging
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logging.basicConfig(
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level=logging.INFO,
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format="%(asctime)s - %(name)s - %(levelname)s - %(message)s"
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)
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logger = logging.getLogger(__name__)
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# Global instances
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manager = ConnectionManager()
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engine = GameEngine(manager)
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# Frontend path
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FRONTEND_DIR = Path(__file__).parent.parent.parent / "frontend"
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""
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Application lifespan manager.
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Starts the game engine and Twitch bot on startup, stops them on shutdown.
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"""
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logger.info("Starting application...")
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# Start game engine
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await engine.start()
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# Start Twitch bot if credentials are provided
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twitch_bot = None
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if os.getenv("TWITCH_TOKEN") and os.getenv("TWITCH_CHANNEL_NAME"):
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try:
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twitch_bot = TwitchBot(engine)
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# Start bot in background task
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asyncio.create_task(twitch_bot.start())
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logger.info("Twitch bot started in background")
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except Exception as e:
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logger.error(f"Failed to start Twitch bot: {e}")
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else:
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logger.info("Twitch credentials not provided, skipping Twitch bot")
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yield
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logger.info("Shutting down application...")
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# Stop Twitch bot if it was started
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if twitch_bot:
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try:
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await twitch_bot.close()
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logger.info("Twitch bot stopped")
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except Exception as e:
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logger.error(f"Error stopping Twitch bot: {e}")
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# Stop game engine
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await engine.stop()
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# Create FastAPI application
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app = FastAPI(
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title="The Island - Live Stream Game Backend",
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description="Commercial-grade interactive live-stream game backend",
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version="0.1.0",
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lifespan=lifespan
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)
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# Configure CORS for frontend access
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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@app.get("/")
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async def root():
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"""Serve the debug client page."""
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return FileResponse(FRONTEND_DIR / "debug_client.html")
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@app.get("/health")
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async def health():
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"""Health check endpoint."""
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return {
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"status": "running",
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"service": "The Island Game Backend",
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"connections": manager.connection_count,
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"engine_running": engine.is_running
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}
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@app.websocket("/ws")
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async def websocket_endpoint(websocket: WebSocket):
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"""
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WebSocket endpoint for real-time game communication.
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Handles client connections and processes incoming messages.
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"""
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await manager.connect(websocket)
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# Send welcome message
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welcome = GameEvent(
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event_type=EventType.SYSTEM,
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data={"message": "Connected to The Island!"}
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)
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await manager.send_personal(websocket, welcome)
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try:
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while True:
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# Receive and parse client message
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data = await websocket.receive_json()
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message = ClientMessage(**data)
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# Handle mock comment action
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if message.action == "send_comment":
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user = message.payload.get("user", "Anonymous")
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text = message.payload.get("message", "")
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await engine.process_comment(user, text)
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except WebSocketDisconnect:
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manager.disconnect(websocket)
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except Exception as e:
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logger.error(f"WebSocket error: {e}")
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manager.disconnect(websocket)
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# Mount static files (must be after all routes)
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app.mount("/static", StaticFiles(directory=FRONTEND_DIR), name="static")
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