"""Tests for the audit writer (upsert into kevin_signal_bridge_state)."""

from datetime import datetime, timezone
from decimal import Decimal

import pytest
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

pytestmark = pytest.mark.integration

from services.kevin_signal_bridge.audit import AuditWriter
from shared.models.meet_kevin import (
    KevinAnalysis,
    KevinChannel,
    KevinMarketOutlook,
    KevinStockMention,
    KevinTickerAction,
    KevinTimeHorizon,
    KevinVideo,
    KevinVideoStatus,
)
from shared.models.meet_kevin_trading import KevinSignalBridgeState


def _factory(session: AsyncSession):
    class _StaticSessionFactory:
        async def __aenter__(self):
            return session

        async def __aexit__(self, *args):
            pass

    def factory():
        return _StaticSessionFactory()

    return factory


async def _seed_mention(session: AsyncSession) -> int:
    channel = KevinChannel(youtube_channel_id="UCa", title="t")
    session.add(channel)
    await session.flush()
    video = KevinVideo(
        channel_id=channel.id,
        youtube_video_id="va",
        title="t",
        published_at=datetime.now(timezone.utc),
        status=KevinVideoStatus.ANALYZED,
    )
    session.add(video)
    await session.flush()
    analysis = KevinAnalysis(
        video_id=video.id,
        model="m",
        prompt_version="v1",
        market_outlook_direction=KevinMarketOutlook.NEUTRAL,
        market_outlook_reasoning="x",
        summary="x",
        prompt_tokens=10,
        completion_tokens=10,
        cost_usd=Decimal("0.01"),
    )
    session.add(analysis)
    await session.flush()
    mention = KevinStockMention(
        video_id=video.id,
        analysis_id=analysis.id,
        symbol="NVDA",
        action=KevinTickerAction.BUY,
        conviction=Decimal("0.7"),
        time_horizon=KevinTimeHorizon.WEEKS,
        rationale_quote="x",
    )
    session.add(mention)
    await session.flush()
    return mention.id


@pytest.mark.asyncio
async def test_audit_writer_inserts_new_row(db_session: AsyncSession):
    mention_id = await _seed_mention(db_session)
    writer = AuditWriter(session_factory=_factory(db_session))
    await writer.write(
        mention_id=mention_id,
        bridge_status="emitted",
        effective_conviction=Decimal("0.75"),
        notes="hello",
    )
    row = (
        await db_session.execute(
            select(KevinSignalBridgeState).where(
                KevinSignalBridgeState.mention_id == mention_id
            )
        )
    ).scalar_one()
    assert row.bridge_status.value == "emitted"


@pytest.mark.asyncio
async def test_audit_writer_upserts_on_duplicate(db_session: AsyncSession):
    mention_id = await _seed_mention(db_session)
    writer = AuditWriter(session_factory=_factory(db_session))
    await writer.write(mention_id=mention_id, bridge_status="dry_run", notes="first")
    await writer.write(mention_id=mention_id, bridge_status="emitted", notes="second")
    rows = (
        (
            await db_session.execute(
                select(KevinSignalBridgeState).where(
                    KevinSignalBridgeState.mention_id == mention_id
                )
            )
        )
        .scalars()
        .all()
    )
    assert len(rows) == 1
    assert rows[0].bridge_status.value == "emitted"
    assert rows[0].notes == "second"