"""Composite Factor Repository Protocol（M7.2b）。"""

from __future__ import annotations

from typing import Protocol

from app.domain.entities.composite import CompositeDefinition


class CompositeRepository(Protocol):
    def save(self, definition: CompositeDefinition) -> CompositeDefinition:
        """新建组合（name 冲突抛 ValueError）。"""

    def get(self, composite_id: str) -> CompositeDefinition | None: ...

    def list(self) -> list[CompositeDefinition]: ...

    def delete(self, composite_id: str) -> bool:
        """删除；不存在返回 False。"""