"""CopilotSession unit tests."""

import asyncio
from datetime import UTC, datetime
from unittest.mock import AsyncMock, Mock
from uuid import uuid4

import pytest

from copilot.session import CopilotSession
from copilot.session_events import (
    AssistantMessageData,
    SessionEvent,
    SessionEventType,
    SessionIdleData,
    SessionMode,
)


def _event(data, event_type: SessionEventType) -> SessionEvent:
    return SessionEvent(
        data=data,
        id=uuid4(),
        timestamp=datetime.now(UTC),
        type=event_type,
    )


@pytest.mark.asyncio
async def test_send_and_wait_skips_autopilot_continuation_idle():
    client = Mock()
    client.request = AsyncMock(return_value={"messageId": "message-1"})
    session = CopilotSession("session-1", client)

    pending = asyncio.create_task(session.send_and_wait("keep going"))
    await asyncio.sleep(0)
    client.request.assert_awaited_once()

    session._dispatch_event(
        _event(
            AssistantMessageData(content="intermediate", message_id="assistant-1"),
            SessionEventType.ASSISTANT_MESSAGE,
        )
    )
    session._dispatch_event(
        _event(
            SessionIdleData(mode=SessionMode.AUTOPILOT),
            SessionEventType.SESSION_IDLE,
        )
    )
    assert not pending.done()

    session._dispatch_event(
        _event(
            AssistantMessageData(content="final", message_id="assistant-2"),
            SessionEventType.ASSISTANT_MESSAGE,
        )
    )
    session._dispatch_event(
        _event(
            SessionIdleData(mode=SessionMode.INTERACTIVE),
            SessionEventType.SESSION_IDLE,
        )
    )

    result = await asyncio.wait_for(pending, timeout=1)
    assert result is not None
    assert isinstance(result.data, AssistantMessageData)
    assert result.data.content == "final"