"""FastAPI 主应用"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.config import settings
from app.routers import vm, storage, network, snapshot, monitor

app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    description="KVM 虚拟化管理平台 API",
)

# CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# 注册路由
app.include_router(vm.router, prefix=f"{settings.API_PREFIX}/vm", tags=["虚拟机管理"])
app.include_router(storage.router, prefix=f"{settings.API_PREFIX}/storage", tags=["存储管理"])
app.include_router(network.router, prefix=f"{settings.API_PREFIX}/network", tags=["网络管理"])
app.include_router(snapshot.router, prefix=f"{settings.API_PREFIX}/snapshot", tags=["快照管理"])
app.include_router(monitor.router, prefix=f"{settings.API_PREFIX}/monitor", tags=["资源监控"])


@app.get("/")
async def root():
    return {"name": settings.APP_NAME, "version": settings.APP_VERSION}


@app.get(f"{settings.API_PREFIX}/host")
async def host_info():
    """获取宿主机信息"""
    from app.libvirt_conn import libvirt_conn
    return libvirt_conn.get_host_info()


@app.get("/health")
async def health():
    """健康检查"""
    from app.libvirt_conn import libvirt_conn
    try:
        conn = libvirt_conn.conn
        return {"status": "ok", "libvirt": conn.isAlive()}
    except Exception as e:
        return {"status": "error", "message": str(e)}