"""Pausing a reply to ask the reader something.

Driven through the real generation loop with a scripted endpoint, because the
things worth pinning here are all about the loop: that Stop still works while
nothing is streaming, that a decision lands at the right index, and that the
card clears itself.
"""

from __future__ import annotations

import asyncio

import pytest
from sqlalchemy import select

from lembas.db.models import ROLE_ASSISTANT, Chat, Connection, Message, Model
from lembas.services import generation as generation_service
from lembas.services import interaction, settings_store


def _chat_that_can_ask(db, user_id):
    connection = Connection(name="c", base_url="http://127.0.0.1:1", api_key_encrypted="")
    db.add(connection)
    db.commit()
    db.add(Model(connection_id=connection.id, model_id="m", capabilities_json={"tools": True}))
    db.commit()
    chat = Chat(user_id=user_id, model_id="m", connection_id=connection.id)
    db.add(chat)
    db.commit()
    db.add(Message(chat_id=chat.id, role="user", content="Which one?", complete=True))
    db.commit()
    assistant = Message(chat_id=chat.id, role=ROLE_ASSISTANT, content="", complete=False)
    db.add(assistant)
    db.commit()
    return chat.id, assistant.id


def _ask_chunk(question: str, options: list[str] | None = None, *, index: int = 0, call_id="c1"):
    import json as _json

    arguments = {"question": question}
    if options is not None:
        arguments["options"] = options
    return {
        "choices": [
            {
                "delta": {
                    "tool_calls": [
                        {
                            "index": index,
                            "id": call_id,
                            "function": {
                                "name": "ask_user",
                                "arguments": _json.dumps(arguments),
                            },
                        }
                    ]
                }
            }
        ]
    }


def _text_chunk(text: str) -> dict:
    return {"choices": [{"delta": {"content": text}}]}


def _stub_stream(rounds, seen):
    async def stream_chat(_endpoint, payload):
        seen.append(payload)
        for chunk in rounds[min(len(seen) - 1, len(rounds) - 1)]:
            yield chunk

    return stream_chat


async def _until_paused(generation, *, timeout: float = 2.0):
    """Wait for the card to go up."""
    deadline = asyncio.get_running_loop().time() + timeout
    while asyncio.get_running_loop().time() < deadline:
        if generation.pending is not None:
            return generation.pending
        await asyncio.sleep(0.01)
    raise AssertionError("the reply never paused")


@pytest.fixture
def scripted(db, user_id, monkeypatch):
    """A reply that asks one question, then answers with whatever it was told."""
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    payloads: list[dict] = []
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream(
            [[_ask_chunk("Tea or coffee?", ["Tea", "Coffee"])], [_text_chunk("Right you are.")]],
            payloads,
        ),
    )
    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    return generation, payloads, chat_id, message_id


# --- The tool is offered at all ----------------------------------------------
def test_ask_user_is_offered_to_an_ordinary_chat(db, user_id):
    """Not an agent feature. A model in a plain conversation should be able to
    stop and ask which of two things you meant."""
    from lembas.db.models import User
    from lembas.services import tools as tools_service

    chat_id, _message_id = _chat_that_can_ask(db, user_id)
    chat = db.get(Chat, chat_id)
    offered = tools_service.resolve_tools(db, chat, db.get(User, user_id))
    assert "ask_user" in offered.by_name


def test_ask_user_is_withheld_without_the_permission(db, user_id):
    from lembas.db.models import User
    from lembas.services import tools as tools_service

    user = db.get(User, user_id)
    # Administrators are given every permission, so the baseline only bites a
    # plain account.
    user.role = "user"
    settings_store.update(db, {"default_permissions": {"tools.ask": False}})
    db.commit()

    chat = db.get(Chat, _chat_that_can_ask(db, user_id)[0])
    assert "ask_user" not in tools_service.resolve_tools(db, chat, user).by_name


# --- The pause ---------------------------------------------------------------
async def test_the_reply_pauses_and_the_card_describes_the_question(scripted):
    generation, _payloads, _chat_id, _message_id = scripted
    task = asyncio.create_task(generation_service._run(generation))

    pending = await _until_paused(generation)
    assert pending.kind == interaction.KIND_QUESTION
    assert pending.items[0].title == "Tea or coffee?"
    assert pending.items[0].options == ("Tea", "Coffee")
    assert "Waiting for your answer" in generation.status

    pending.resolve(interaction.ANSWER, answers={"q0": "Tea"})
    await task


async def test_the_answer_reaches_the_model_as_a_tool_result(scripted):
    generation, payloads, _chat_id, _message_id = scripted
    task = asyncio.create_task(generation_service._run(generation))

    pending = await _until_paused(generation)
    pending.resolve(interaction.ANSWER, answers={"q0": "Coffee, please"})
    await task

    turns = [m for m in payloads[1]["messages"] if m.get("role") == "tool"]
    assert len(turns) == 1
    assert "Coffee, please" in turns[0]["content"]
    assert turns[0]["tool_call_id"] == "c1"


async def test_the_card_is_cleared_once_it_is_answered(scripted):
    generation, _payloads, _chat_id, _message_id = scripted
    task = asyncio.create_task(generation_service._run(generation))

    pending = await _until_paused(generation)
    version = generation.version
    pending.resolve(interaction.ANSWER, answers={"q0": "Tea"})
    await task

    assert generation.pending is None
    assert generation.version > version, "clearing has to bump the version or no frame is sent"


async def test_the_transcript_keeps_what_was_asked_and_answered(scripted):
    generation, _payloads, _chat_id, _message_id = scripted
    task = asyncio.create_task(generation_service._run(generation))

    pending = await _until_paused(generation)
    pending.resolve(interaction.ANSWER, answers={"q0": "Tea"})
    await task

    event = generation.tool_events[0]
    assert event["kind"] == "ask"
    assert event["query"] == "Tea or coffee?"
    assert "Tea" in event["text"]


# --- Stop, while nothing is streaming ----------------------------------------
async def test_stop_ends_a_reply_that_is_waiting_for_an_answer(db, user_id, monkeypatch):
    """`cancel` is read only between streamed chunks, and there are no chunks
    while the card is up. Without the wakeup in request_stop the button does
    nothing at all here."""
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream([[_ask_chunk("Tea or coffee?")], [_text_chunk("unreachable")]], []),
    )

    generation = generation_service.ensure(chat_id, message_id)
    await _until_paused(generation)

    assert generation_service.request_stop(message_id) is True
    await asyncio.wait_for(asyncio.shield(generation_service._TASKS[message_id]), timeout=2)

    assert generation.stopped is True
    assert generation.pending is None


# --- Timeout ------------------------------------------------------------------
async def test_an_unanswered_question_expires_and_the_reply_finishes(db, user_id, monkeypatch):
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    payloads: list[dict] = []
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream([[_ask_chunk("Tea or coffee?")], [_text_chunk("Never mind.")]], payloads),
    )
    # The clamp floor is 60s, so the timeout is forced directly rather than
    # through the settings.
    monkeypatch.setattr(
        generation_service.tools_service,
        "context_for",
        lambda *a, **k: _fast_context(*a, **k),
    )

    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    await asyncio.wait_for(generation_service._run(generation), timeout=5)

    turns = [m for m in payloads[1]["messages"] if m.get("role") == "tool"]
    assert "did not answer" in turns[0]["content"]
    assert generation.tool_events[0]["status"] == "error"


def _fast_context(db, user, chat=None, *, tools=None):
    from lembas.services import tools as tools_service

    context = tools_service.ToolContext(
        owner_id=user.id if user else "",
        tools=tools.by_name if tools is not None else None,
    )
    context.interaction_timeout = 0.2
    return context


# --- The primitive on its own -------------------------------------------------
def test_resolving_twice_only_counts_once():
    """Two tabs, or a double click. The second answer must not win."""

    async def go():
        pause = interaction.build("abc", [_item()], timeout=5)
        assert pause.resolve(interaction.ANSWER, answers={"q0": "first"}) is True
        assert pause.resolve(interaction.ANSWER, answers={"q0": "second"}) is False
        assert (await pause._future).answers == {"q0": "first"}

    asyncio.run(go())


def test_an_interruption_with_no_future_cannot_be_resolved():
    pause = interaction.Interruption(id="abc", items=(_item(),))
    assert pause.resolve(interaction.ANSWER) is False


def _item(key: str = "q0", *, title: str = "Tea or coffee?", **kwargs) -> interaction.Item:
    return interaction.Item(
        index=0,
        key=key,
        kind=interaction.KIND_QUESTION,
        tool_name="ask_user",
        title=title,
        **kwargs,
    )


# --- Resolving one -------------------------------------------------------------
# `answer()` is exercised in-process rather than over the TestClient, because a
# future belongs to the loop that made it and TestClient runs the app on its
# own. In production both are the single uvicorn loop, which is the arrangement
# the in-process registry already requires.
async def test_answer_finds_the_pause_and_resolves_it(db, user_id):
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    generation.pending = interaction.build("pause-1", [_item()], timeout=30)
    generation_service._RUNNING[message_id] = generation
    try:
        assert generation_service.answer(chat_id, "pause-1", answers={"q0": "Tea"}) is True
        assert (await generation.pending._future).answers == {"q0": "Tea"}
    finally:
        generation_service._RUNNING.pop(message_id, None)


async def test_answer_ignores_a_pause_in_another_chat(db, user_id):
    """The endpoint checks ownership of the chat, so the lookup is scoped to it
    -- an id on its own would not be an authorisation."""
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    generation.pending = interaction.build("pause-1", [_item()], timeout=30)
    generation_service._RUNNING[message_id] = generation
    try:
        assert generation_service.answer("another-chat", "pause-1", answers={"q0": "x"}) is False
        assert not generation.pending._future.done()
    finally:
        generation_service._RUNNING.pop(message_id, None)


async def test_an_allow_choice_is_kept_as_a_verdict_not_as_typed_text():
    """"allow" is a decision, not something somebody wrote in the box."""
    pause = interaction.build("p", [_item()], timeout=5)
    pause.resolve(interaction.ALLOW)
    reply = await pause._future
    assert reply.permitted is True
    assert reply.outcome == interaction.ALLOW


def test_answering_something_that_has_gone_says_so(client, db, registered, user_id):
    chat_id, _message_id = _chat_that_can_ask(db, user_id)
    response = client.post(f"/api/chats/{chat_id}/interaction/nope", data={"choice": "Tea"})
    assert response.status_code == 204
    assert "no longer waiting" in response.headers["HX-Trigger"]


def test_another_account_cannot_answer_your_question(client, db, registered, user_id):
    """Without the ownership check, a guessed id would be answering -- and
    later, approving a command in -- somebody else's conversation."""
    from lembas.db.models import User

    chat_id, message_id = _chat_that_can_ask(db, user_id)
    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    # No future: the request must be refused before anything tries to resolve
    # it, so there is nothing here for it to reach.
    pause = interaction.Interruption(id="pause-2", items=(_item(),))
    generation.pending = pause
    generation_service._RUNNING[message_id] = generation
    try:
        client.post("/auth/logout")
        client.post(
            "/auth/register",
            data={"name": "Sam", "email": "sam@shire.test", "password": "correct horse battery"},
            follow_redirects=False,
        )
        intruder = db.scalar(select(User).where(User.email == "sam@shire.test"))
        intruder.role = "user"
        intruder.active = True
        db.commit()
        client.post(
            "/auth/login",
            data={"email": "sam@shire.test", "password": "correct horse battery"},
            follow_redirects=False,
        )

        response = client.post(
            f"/api/chats/{chat_id}/interaction/pause-2", data={"choice": "Tea"}
        )
        assert response.status_code == 404
        assert pause is generation.pending, "still waiting for the person it belongs to"
    finally:
        generation_service._RUNNING.pop(message_id, None)


# --- The card ------------------------------------------------------------------
def _render(pending) -> str:
    from lembas.api.chats import _ask_html

    return _ask_html("chat-1", pending)


def test_nothing_pending_renders_nothing():
    """The frame is sent unconditionally so the card can clear itself. An empty
    string is how it does that."""
    assert _render(None) == ""


def test_the_card_shows_the_question_and_its_options():
    pause = interaction.Interruption(
        id="p1",
        items=(
            _item(title="Tea or coffee?", options=("Tea", "Coffee")),
        ),
    )
    html = _render(pause)
    assert "Tea or coffee?" in html
    assert 'value="Tea"' in html and 'value="Coffee"' in html
    assert 'hx-post="/api/chats/chat-1/interaction/p1"' in html
    assert "The model is asking you" in html, "attributed to the model, not to LLeMbas"


def test_an_approval_card_shows_what_the_model_said_it_was_doing():
    """Attributed, and kept apart from our own reason for stopping. An
    explanation a reader takes for the application's would be LLeMbas vouching
    for a command a model wrote."""
    pause = interaction.Interruption(
        id="p1",
        items=(
            interaction.Item(
                index=0,
                key="a0",
                kind=interaction.KIND_APPROVAL,
                tool_name="shell_run",
                title="Run a command on Box",
                detail="pytest -q",
                reason="Edit mode asks before anything that runs a command.",
                purpose="Checking the change did not break anything.",
            ),
        ),
    )
    html = _render(pause)
    assert "It says: Checking the change did not break anything." in html
    assert "pytest -q" in html
    assert "Edit mode asks" in html


def test_an_explanation_on_a_card_is_escaped():
    """It is model text, and the model may have been reading somebody else's
    file a moment ago."""
    pause = interaction.Interruption(
        id="p1",
        items=(
            interaction.Item(
                index=0,
                key="a0",
                kind=interaction.KIND_APPROVAL,
                tool_name="shell_run",
                title="Run a command on Box",
                detail="ls",
                purpose="<img src=x onerror=alert(1)>",
            ),
        ),
    )
    html = _render(pause)
    assert "<img src=x" not in html
    assert "&lt;img" in html


def test_the_card_never_offers_a_password_field():
    """A model talked into asking for a credential must not be handed a field
    that looks built for one."""
    pause = interaction.Interruption(
        id="p1",
        items=(
            _item(title="Confirm your password to continue:"),
        ),
    )
    html = _render(pause)
    assert 'type="password"' not in html
    assert 'type="text"' in html


def test_everything_on_the_card_is_escaped():
    """The question is model output, and the model may have been reading
    somebody else's file a moment ago."""
    pause = interaction.Interruption(
        id="p1",
        items=(
            _item(
                title="<img src=x onerror=alert(1)>",
                detail="rm -rf / <script>",
                options=('"><script>bad</script>',),
            ),
        ),
    )
    html = _render(pause)
    assert "<img" not in html
    assert "<script>" not in html
    assert "&lt;img" in html


# --- Several questions, one card, one submit ---------------------------------
def _multi_chunk(questions: list[dict], *, call_id="c1", index=0):
    import json as _json

    return {
        "choices": [
            {
                "delta": {
                    "tool_calls": [
                        {
                            "index": index,
                            "id": call_id,
                            "function": {
                                "name": "ask_user",
                                "arguments": _json.dumps({"questions": questions}),
                            },
                        }
                    ]
                }
            }
        ]
    }


async def test_several_questions_arrive_on_one_card(db, user_id, monkeypatch):
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream(
            [
                [
                    _multi_chunk(
                        [
                            {"question": "Which database?", "options": ["SQLite", "Postgres"]},
                            {"question": "Which port?"},
                            {"question": "Deploy now?", "options": ["Yes", "Later"]},
                        ]
                    )
                ],
                [_text_chunk("Understood.")],
            ],
            [],
        ),
    )

    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    task = asyncio.create_task(generation_service._run(generation))
    pending = await _until_paused(generation)

    assert len(pending.items) == 3
    assert [i.title for i in pending.items] == ["Which database?", "Which port?", "Deploy now?"]
    assert [i.key for i in pending.items] == ["q0", "q1", "q2"]
    assert pending.items[1].options == (), "a question may have no options at all"
    assert "Waiting for your answers" in generation.status

    pending.resolve(interaction.ANSWER, answers={"q0": "Postgres", "q1": "5433", "q2": "Later"})
    await task


async def test_all_the_answers_come_back_in_one_tool_turn(db, user_id, monkeypatch):
    """One call, one turn -- however many questions it carried. The endpoint
    expects exactly one tool result per tool_call_id."""
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    payloads: list[dict] = []
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream(
            [
                [_multi_chunk([{"question": "Which database?"}, {"question": "Which port?"}])],
                [_text_chunk("Understood.")],
            ],
            payloads,
        ),
    )

    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    task = asyncio.create_task(generation_service._run(generation))
    pending = await _until_paused(generation)
    pending.resolve(interaction.ANSWER, answers={"q0": "Postgres", "q1": "5433"})
    await task

    turns = [m for m in payloads[1]["messages"] if m.get("role") == "tool"]
    assert len(turns) == 1
    content = turns[0]["content"]
    # Each answer is quoted beside its own question, so the model is not left
    # matching them up by position.
    assert "Which database?" in content and "Postgres" in content
    assert "Which port?" in content and "5433" in content
    assert content.index("Which database?") < content.index("Which port?")


async def test_a_question_left_blank_is_reported_as_skipped(db, user_id, monkeypatch):
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    payloads: list[dict] = []
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream(
            [
                [_multi_chunk([{"question": "Which database?"}, {"question": "Which port?"}])],
                [_text_chunk("Understood.")],
            ],
            payloads,
        ),
    )

    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    task = asyncio.create_task(generation_service._run(generation))
    pending = await _until_paused(generation)
    pending.resolve(interaction.ANSWER, answers={"q0": "Postgres", "q1": ""})
    await task

    content = [m for m in payloads[1]["messages"] if m.get("role") == "tool"][0]["content"]
    assert "Postgres" in content
    assert "left unanswered" in content and "Which port?" in content


async def test_two_ask_calls_in_one_round_share_a_card_but_answer_separately(
    db, user_id, monkeypatch
):
    """One card, because the reader should be interrupted once -- but two tool
    turns, because there were two calls."""
    import json as _json

    chat_id, message_id = _chat_that_can_ask(db, user_id)
    payloads: list[dict] = []
    both = {
        "choices": [
            {
                "delta": {
                    "tool_calls": [
                        {
                            "index": 0,
                            "id": "a",
                            "function": {
                                "name": "ask_user",
                                "arguments": _json.dumps({"questions": [{"question": "First?"}]}),
                            },
                        },
                        {
                            "index": 1,
                            "id": "b",
                            "function": {
                                "name": "ask_user",
                                "arguments": _json.dumps({"questions": [{"question": "Second?"}]}),
                            },
                        },
                    ]
                }
            }
        ]
    }
    monkeypatch.setattr(
        generation_service,
        "stream_chat",
        _stub_stream([[both], [_text_chunk("Understood.")]], payloads),
    )

    generation = generation_service.Generation(chat_id=chat_id, message_id=message_id)
    task = asyncio.create_task(generation_service._run(generation))
    pending = await _until_paused(generation)

    assert len(pending.items) == 2
    assert {i.index for i in pending.items} == {0, 1}, "one item per call"
    assert [i.key for i in pending.items] == ["q0", "q1"], "keys are unique across calls"

    pending.resolve(interaction.ANSWER, answers={"q0": "one", "q1": "two"})
    await task

    turns = [m for m in payloads[1]["messages"] if m.get("role") == "tool"]
    assert [t["tool_call_id"] for t in turns] == ["a", "b"]
    assert "one" in turns[0]["content"] and "two" in turns[1]["content"]


# --- Whatever shape the model actually emits ----------------------------------
@pytest.mark.parametrize(
    ("args", "expected"),
    [
        ({"questions": [{"question": "A"}, {"question": "B"}]}, ["A", "B"]),
        ({"question": "A"}, ["A"]),                       # the singular form
        ({"questions": "A"}, ["A"]),                      # a string where a list belonged
        ({"questions": ["A", "B"]}, ["A", "B"]),          # bare strings
        ({"questions": {"question": "A"}}, ["A"]),        # one object, not wrapped
        ({"questions": [{"nope": 1}, {"question": "B"}]}, ["B"]),  # junk is dropped
        ({}, []),
        ({"questions": []}, []),
    ],
)
def test_the_questions_are_read_however_they_were_spelled(args, expected):
    """A capable model sends the schema. A small one sends something close, and
    getting it wrong costs a round trip and shows a card saying nothing."""
    asked = generation_service._questions_in(args)
    assert [q["question"] for q in asked] == expected


def test_a_lone_bare_question_keeps_a_sibling_options_list():
    asked = generation_service._questions_in({"questions": ["Tea or coffee?"], "options": ["Tea"]})
    assert asked[0]["options"] == ["Tea"]


def test_too_many_questions_are_cut_off():
    args = {"questions": [{"question": f"Q{i}"} for i in range(20)]}
    assert len(generation_service._questions_in(args)) == interaction.MAX_QUESTIONS


def test_the_card_renders_every_question_with_its_own_fields():
    pause = interaction.Interruption(
        id="p1",
        items=(
            _item("q0", title="Which database?", options=("SQLite", "Postgres")),
            _item("q1", title="Which port?"),
        ),
    )
    html = _render(pause)

    assert "Which database?" in html and "Which port?" in html
    # Radios rather than submit buttons: picking one must not send the form
    # while two other questions are still blank.
    assert 'type="radio" name="choice.q0" value="SQLite"' in html
    assert 'name="text.q0"' in html and 'name="text.q1"' in html
    # A question with no options still gets somewhere to write.
    assert 'name="choice.q1"' not in html
    assert html.count("Send answers") == 1, "one submit for the whole card"


def test_a_single_question_says_answer_rather_than_send_answers():
    html = _render(interaction.Interruption(id="p1", items=(_item(),)))
    assert "Send answers" not in html
    assert ">\n          Answer" in html or "Answer" in html


def test_the_endpoint_gathers_every_answer_at_once(client, db, registered, user_id):
    """The whole card in one POST -- what was typed beating what was picked."""
    chat_id, message_id = _chat_that_can_ask(db, user_id)
    seen: dict = {}

    def capture(chat, interaction_id, *, verdict="", answers=None):
        seen["chat"] = chat
        seen["id"] = interaction_id
        seen["verdict"] = verdict
        seen["answers"] = answers
        return True

    from lembas.api import chats as chats_api

    original = chats_api.generation_service.answer
    chats_api.generation_service.answer = capture
    try:
        response = client.post(
            f"/api/chats/{chat_id}/interaction/p1",
            data={
                "choice.q0": "Postgres",
                "text.q0": "",
                "choice.q1": "Yes",
                "text.q1": "actually, later",
                "text.q2": "5433",
            },
        )
        assert response.status_code == 204
    finally:
        chats_api.generation_service.answer = original

    assert seen["answers"] == {
        "q0": "Postgres",            # picked, nothing written
        "q1": "actually, later",     # written wins over picked
        "q2": "5433",                # written, nothing to pick
    }
    assert seen["verdict"] == ""
    assert message_id  # the chat was real


def test_the_endpoint_passes_a_verdict_through_untouched(client, db, registered, user_id):
    chat_id, _message_id = _chat_that_can_ask(db, user_id)
    seen: dict = {}

    from lembas.api import chats as chats_api

    original = chats_api.generation_service.answer
    chats_api.generation_service.answer = lambda c, i, *, verdict="", answers=None: (
        seen.update(verdict=verdict, answers=answers) or True
    )
    try:
        client.post(f"/api/chats/{chat_id}/interaction/p1", data={"verdict": "allow"})
    finally:
        chats_api.generation_service.answer = original

    assert seen["verdict"] == "allow"
    assert seen["answers"] == {}