from __future__ import annotations

from fastapi import HTTPException

from v1.agent.repository import AgentRepository


class _FakeSession:
    def __init__(self) -> None:
        self.added: list[object] = []

    def add(self, obj: object) -> None:
        self.added.append(obj)

    async def flush(self) -> None:
        return None

    async def refresh(self, _obj: object) -> None:
        return None


async def test_create_session_for_user_creates_session_row() -> None:
    session = _FakeSession()
    repository = AgentRepository(session=session)  # type: ignore[arg-type]

    await repository.create_session_for_user(
        user_id="00000000-0000-0000-0000-000000000001"
    )

    session_row = session.added[0]
    assert str(getattr(session_row, "user_id")) == "00000000-0000-0000-0000-000000000001"


async def test_create_session_for_user_rejects_invalid_uuid() -> None:
    session = _FakeSession()
    repository = AgentRepository(session=session)  # type: ignore[arg-type]

    try:
        await repository.create_session_for_user(user_id="invalid-uuid")
        raise AssertionError("expected invalid user_id")
    except HTTPException as exc:
        assert exc.status_code == 422
        assert exc.detail == "Invalid user_id"