"""Layers.

Split out of the single 1854-line ``AutoCADBackend`` ABC in v1.5.0 (M7).
``AutoCADBackend`` composes every contract in this package, so importing
``backends.base.AutoCADBackend`` is unchanged for callers.
"""

from __future__ import annotations

from abc import ABC, abstractmethod
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from backends.base import LayerInfo


class LayerContract(ABC):
    @abstractmethod
    async def layer_list(self) -> list[LayerInfo]: ...

    @abstractmethod
    async def layer_create(
        self,
        name: str,
        color: int = 7,
        linetype: str = "Continuous",
        lineweight: float = -3,
    ) -> LayerInfo: ...

    @abstractmethod
    async def layer_delete(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_set_current(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_modify(
        self,
        name: str,
        color: int | None = None,
        linetype: str | None = None,
        lineweight: float | None = None,
    ) -> LayerInfo: ...

    @abstractmethod
    async def layer_freeze(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_thaw(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_lock(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_unlock(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_hide(self, name: str) -> dict: ...

    @abstractmethod
    async def layer_show(self, name: str) -> dict: ...