"""
Nakama Moderation Backend - Python FastAPI
"""
import os
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.middleware.trustedhost import TrustedHostMiddleware
import uvicorn

from config import settings
from database import connect_db, close_db
# Import from middleware.py file (not directory)
import middleware as app_middleware
from routes.mod_app import router as mod_app_router
from routes.moderation_auth import router as moderation_auth_router
from websocket_server import get_socketio_app
from utils.minio_client import init_minio


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Lifecycle management"""
    # Startup
    print("\n" + "=" * 60)
    print("🚀 Запуск сервера модерации (Python)...")
    await connect_db()
    
    # Initialize MinIO
    if settings.MINIO_ENABLED:
        init_minio()
    
    print("=" * 60 + "\n")
    
    yield
    
    # Shutdown
    print("\n" + "=" * 60)
    print("🛑 Остановка сервера модерации...")
    await close_db()
    print("=" * 60 + "\n")


app = FastAPI(
    title="Nakama Moderation API",
    description="API для модерации Nakama",
    version="2.0.0",
    lifespan=lifespan
)

# CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.MODERATION_CORS_ORIGIN.split(',') if settings.MODERATION_CORS_ORIGIN != '*' else ['*'],
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "DELETE", "OPTIONS"],
    allow_headers=["Content-Type", "Authorization", "x-telegram-init-data"],
    max_age=86400,
)

# Setup middleware (security, logging, etc.)
app_middleware.setup_middleware(app)

# Health check
@app.get("/health")
async def health_check():
    return {
        "status": "ok",
        "service": "moderation",
        "version": "2.0.0-python"
    }

# Root endpoint
@app.get("/")
async def root():
    return {"message": "Nakama Moderation API - Python"}

# Include routers
app.include_router(mod_app_router, prefix="/api/mod-app", tags=["moderation"])
app.include_router(moderation_auth_router, prefix="/api/moderation-auth", tags=["auth"])

# Mount Socket.IO app for WebSocket
# Socket.IO ASGI app needs to wrap FastAPI app to handle both HTTP and WebSocket
try:
    socketio_app = get_socketio_app()
    # Socket.IO will handle /socket.io and /mod-chat paths
    # We need to mount it so it can intercept WebSocket connections
    # But FastAPI routes should still work
    # The Socket.IO ASGI app will handle its own paths and pass others to FastAPI
    app.mount("/socket.io", socketio_app)
    app.mount("/mod-chat", socketio_app)  # Also mount at /mod-chat for namespace
    print("✅ WebSocket (Socket.IO) настроен")
    print("   📡 Namespace /mod-chat доступен для чата модераторов")
except Exception as e:
    print(f"⚠️  Ошибка настройки WebSocket: {e}")
    import traceback
    traceback.print_exc()
    print("   Чат модераторов будет недоступен")


if __name__ == "__main__":
    print("\n" + "=" * 60)
    print("✅ Сервер модерации запущен (Python)")
    print(f"   🌐 API: http://0.0.0.0:{settings.MODERATION_PORT}/api")
    print(f"   🔌 WebSocket: http://0.0.0.0:{settings.MODERATION_PORT}/socket.io")
    print(f"   📦 MongoDB: {settings.MONGODB_URI.split('@')[-1] if '@' in settings.MONGODB_URI else settings.MONGODB_URI}")
    print("=" * 60 + "\n")
    
    uvicorn.run(
        "main:app",
        host="0.0.0.0",
        port=settings.MODERATION_PORT,
        reload=settings.IS_DEVELOPMENT,
        log_level="info"
    )