Initial release

backend/app/main.py

@@ -0,0 +1,85 @@
+import asyncio
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI, Request, Response
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.core.config import settings
+from app.models import Base  # noqa: F401 - ensure all models are registered
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    from app.bot import router as bot_router
+    from app.bot.router import bot, dp
+
+    me = await bot.get_me()
+    bot_router.bot_username = me.username or ""
+
+    from aiogram.types import BotCommand
+    await bot.set_my_commands([
+        BotCommand(command="start", description="Open lottery manager"),
+        BotCommand(command="newlottery", description="Create a new lottery"),
+        BotCommand(command="mylotteries", description="View my lotteries"),
+        BotCommand(command="help", description="Help and project info"),
+    ])
+
+    from app.services.scheduler import auto_draw_scheduler
+    asyncio.create_task(auto_draw_scheduler())
+
+    if settings.webhook_url:
+        webhook_url = f"{settings.webhook_url}{settings.webhook_path}"
+        await bot.set_webhook(
+            webhook_url,
+            secret_token=settings.webhook_secret or None,
+            drop_pending_updates=True,
+        )
+    else:
+        # Development: long-polling mode
+        asyncio.create_task(dp.start_polling(bot, handle_signals=False))
+
+    yield
+
+    from app.bot.router import bot as _bot
+    await _bot.session.close()
+
+
+app = FastAPI(title="TGLotteryBot API", lifespan=lifespan)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# API routers
+from app.api.routers import lotteries, prizes, participants, chats, users  # noqa: E402
+
+app.include_router(lotteries.router, prefix="/api")
+app.include_router(prizes.router, prefix="/api")
+app.include_router(participants.router, prefix="/api")
+app.include_router(chats.router, prefix="/api")
+app.include_router(users.router, prefix="/api")
+
+
+@app.post(settings.webhook_path)
+async def telegram_webhook(request: Request) -> Response:
+    """Receive Telegram updates via webhook."""
+    from app.bot.router import bot, dp
+    from aiogram.types import Update
+
+    secret = request.headers.get("X-Telegram-Bot-Api-Secret-Token", "")
+    if settings.webhook_secret and secret != settings.webhook_secret:
+        return Response(status_code=403)
+
+    body = await request.json()
+    update = Update(**body)
+    await dp.feed_update(bot, update)
+    return Response(status_code=200)
+
+
+@app.get("/health")
+async def health() -> dict:
+    return {"status": "ok"}