"""Tests for GET /api/seances/recent — the Ghost Log recap
(usability wave, Workstream C, #7)."""

from datetime import datetime, timedelta, timezone

import pytest

from app.models.contact_session import ContactSession
from app.models.entity import Entity
from app.models.event import Event


async def _register(client, username):
    resp = await client.post(
        "/auth/register", json={"username": username, "password": "spookyspooky"}
    )
    assert resp.status_code == 201
    return resp.json()["id"]


async def _login(client, username):
    resp = await client.post(
        "/auth/login", json={"username": username, "password": "spookyspooky"}
    )
    assert resp.status_code == 200


def _entity(name, signature):
    return Entity(
        name=name,
        epithet="the Test Wraith",
        rarity_tier="rare",
        signature=signature,
        visual_profile={"hue": 200, "form": "wisp"},
    )


@pytest.mark.asyncio
async def test_unauthenticated_rejected(client):
    resp = await client.get("/api/seances/recent")
    assert resp.status_code == 401


@pytest.mark.asyncio
async def test_only_own_sessions_newest_first_with_counts_and_echoes(client, db_session):
    my_id = await _register(client, "seeker1")
    other_id = await _register(client, "seeker2")
    await _login(client, "seeker1")

    entity = _entity("Testnamed", "sig-aaaa")
    db_session.add(entity)
    await db_session.flush()

    now = datetime.now(timezone.utc)
    older = ContactSession(
        user_id=my_id, entity_id=entity.id, mode="evp", started_at=now - timedelta(hours=2)
    )
    newer = ContactSession(
        user_id=my_id, entity_id=entity.id, mode="wire", started_at=now - timedelta(hours=1)
    )
    theirs = ContactSession(user_id=other_id, mode="ouija", started_at=now)
    db_session.add_all([older, newer, theirs])
    await db_session.flush()

    # Events on the newer session: 2 questions, 3 anomalies, 4 spirit
    # utterances (only the newest 3 should come back as echoes).
    events = [
        Event(session_id=newer.id, kind="question", text="who's there?"),
        Event(session_id=newer.id, kind="question", text="still there?"),
        Event(session_id=newer.id, kind="anomaly", payload={"score": 1}),
        Event(session_id=newer.id, kind="anomaly", payload={"score": 2}),
        Event(session_id=newer.id, kind="anomaly", payload={"score": 3}),
    ]
    for i in range(4):
        events.append(
            Event(
                session_id=newer.id,
                kind="utterance",
                text=f"echo {i}",
                payload={"kind": "reply"},
                created_at=now - timedelta(minutes=30 - i),
            )
        )
    # An utterance on the OTHER user's session must never leak.
    events.append(
        Event(
            session_id=theirs.id,
            kind="utterance",
            text="not yours",
            payload={"kind": "greeting"},
        )
    )
    db_session.add_all(events)
    await db_session.commit()

    resp = await client.get("/api/seances/recent")
    assert resp.status_code == 200
    seances = resp.json()["seances"]

    # Only my sessions, newest first.
    assert [s["id"] for s in seances] == [str(newer.id), str(older.id)]

    first = seances[0]
    assert first["mode"] == "wire"
    assert first["counts"] == {"question": 2, "anomaly": 3, "utterance": 4}
    assert first["echoes"] == ["echo 3", "echo 2", "echo 1"]
    assert first["entity"] == {
        "id": str(entity.id),
        "name": "Testnamed",
        "epithet": "the Test Wraith",
        "rarity": "rare",
        "visual": {"hue": 200, "form": "wisp"},
    }

    # No cross-user text anywhere in the response.
    assert "not yours" not in resp.text


@pytest.mark.asyncio
async def test_session_without_entity_does_not_crash(client, db_session):
    my_id = await _register(client, "seeker3")
    await _login(client, "seeker3")

    session = ContactSession(user_id=my_id, mode="ouija")
    db_session.add(session)
    await db_session.commit()

    resp = await client.get("/api/seances/recent")
    assert resp.status_code == 200
    seances = resp.json()["seances"]
    assert len(seances) == 1
    assert seances[0]["entity"] is None
    assert seances[0]["counts"] == {}
    assert seances[0]["echoes"] == []


@pytest.mark.asyncio
async def test_limited_to_twelve(client, db_session):
    my_id = await _register(client, "seeker4")
    await _login(client, "seeker4")

    now = datetime.now(timezone.utc)
    db_session.add_all(
        ContactSession(user_id=my_id, mode="wire", started_at=now - timedelta(minutes=i))
        for i in range(15)
    )
    await db_session.commit()

    resp = await client.get("/api/seances/recent")
    assert resp.status_code == 200
    assert len(resp.json()["seances"]) == 12