from fastapi import APIRouter, HTTPException

router = APIRouter()

# 在运行时获取插件实例
plugin = None

def set_plugin_instance(plugin_instance):
    global plugin
    plugin = plugin_instance

@router.get("/")
async def api_root():
    return {"message": "欢迎插件API", "status": "运行中"}

@router.get("/welcome")
async def get_welcome(name: str = "用户"):
    """获取欢迎消息"""
    if plugin is None or not plugin.enabled:
        raise HTTPException(status_code=400, detail="插件未启用")
    message = plugin.get_welcome_message(name)
    return {"message": message}

@router.get("/status")
async def get_status():
    """获取插件状态"""
    if plugin is None:
        return {"name": "welcome", "enabled": False, "message": "插件未加载"}
    return plugin.get_status()

@router.post("/enable")
async def enable_plugin():
    """启用插件"""
    if plugin is None:
        raise HTTPException(status_code=400, detail="插件未加载")
    plugin.on_enable()
    return {"message": "插件已启用"}

@router.post("/disable")
async def disable_plugin():
    """禁用插件"""
    if plugin is None:
        raise HTTPException(status_code=400, detail="插件未加载")
    plugin.on_disable()
    return {"message": "插件已禁用"}