from turtle import Turtle
from typing import Optional, Collection, Any
from controls.device import SynchronyDevice
from controls.device import TraitDescriptor
from controls.device import ActionDescriptor


class TurtleDevice(SynchronyDevice):
    def open(self):
        self.turtle = Turtle()
        super().open()

    def close(self):
        self.turtle.clear()
        super().close()

    def trait_descriptors(self) -> Collection[TraitDescriptor]:
        pass

    def action_descriptors(self) -> Collection[ActionDescriptor]:
        pass

    def __getitem__(self, trait_name: str) -> Optional[Any]:
        """Return logical state of trait `trait_name`."""
        pass

    def read(self, trait_name: str) -> Any:
        raise NonReadableTrait

    def write(self, trait_name: str, value: Any) -> bool:
        self.turtle.write()

    def invalidate(self, trait_name: str):
        pass