"""Router ORM contract guards (Gitea issue #6 / T3).

These tests pin the observable behaviour of router endpoints that currently
embed ORM writes directly (S2). When those handlers are later moved into a
service, the tests should still pass unchanged — that is the contract.
"""
from datetime import timedelta

import pytest
from fastapi.testclient import TestClient
from sqlmodel import Session, SQLModel, create_engine, select

from agenteval.intelligent_eval.models import IntelligentEvalStatus
from agenteval.storage.db import (
    IntelligentEvalDB,
    IntelligentEvalDecisionLogDB,
    OpenClawCronPoolDB,
    utc_now,
)
from agenteval.web.app import app
from agenteval.web.deps import get_db


@pytest.fixture()
def client(tmp_path):
    from agenteval.storage.db import (  # noqa: F401
        IntelligentEvalDB,
        IntelligentEvalSessionDB,
        IntelligentEvalTaskQueueDB,
    )

    engine = create_engine(
        f"sqlite:///{tmp_path / 'test.db'}",
        connect_args={"check_same_thread": False},
    )
    SQLModel.metadata.create_all(engine)
    session = Session(engine)

    def override_get_db():
        try:
            yield session
        finally:
            pass

    app.dependency_overrides[get_db] = override_get_db
    yield TestClient(app)
    app.dependency_overrides.clear()
    session.close()
    engine.dispose()


@pytest.fixture()
def db_session(client):
    return next(app.dependency_overrides[get_db]())


# T3.1 — heartbeat updates last_active_at / status / current_eval_id


def test_heartbeat_updates_cron_fields(client: TestClient, db_session: Session):
    cron = OpenClawCronPoolDB(
        openclaw_cron_id="cron-1",
        status="idle",
        last_active_at=utc_now() - timedelta(hours=1),
    )
    db_session.add(cron)
    db_session.commit()

    response = client.post(
        "/api/openclaw/crons/cron-1/heartbeat",
        json={"status": "busy", "current_eval_id": "eval-42"},
    )
    assert response.status_code == 200

    db_session.refresh(cron)
    assert cron.status == "busy"
    assert cron.current_eval_id == "eval-42"


def test_heartbeat_404_for_unknown_cron(client: TestClient):
    response = client.post(
        "/api/openclaw/crons/does-not-exist/heartbeat",
        json={"status": "busy", "current_eval_id": None},
    )
    assert response.status_code == 404


# T3.2 — decision-logs POST persists to DB


def test_create_decision_log_persists(client: TestClient, db_session: Session):
    import uuid
    eval_db = IntelligentEvalDB(
        id=str(uuid.uuid4()),
        name="eval-dl",
        target_id="t1",
        status=IntelligentEvalStatus.EXECUTING.value,
    )
    db_session.add(eval_db)
    db_session.commit()

    response = client.post(
        f"/api/intelligent-evals/{eval_db.id}/decision-logs",
        json={
            "decision_type": "execute_session",
            "reason": "slot_due",
            "context": {"slot": "8-10h", "deficit": 2},
            "cron_id": "cron-1",
        },
    )
    assert response.status_code == 200

    logs = db_session.exec(
        select(IntelligentEvalDecisionLogDB).where(
            IntelligentEvalDecisionLogDB.eval_id == eval_db.id
        )
    ).all()
    assert len(logs) == 1
    assert logs[0].decision_type == "execute_session"
    assert logs[0].reason == "slot_due"


def test_create_decision_log_404_for_unknown_eval(client: TestClient):
    import uuid
    response = client.post(
        f"/api/intelligent-evals/{uuid.uuid4()}/decision-logs",
        json={
            "decision_type": "execute_session",
            "reason": "slot_due",
            "context": {},
            "cron_id": "cron-1",
        },
    )
    assert response.status_code == 404


# T3.3 — decision-logs GET lists logs


def test_list_decision_logs_returns_inserted(client: TestClient, db_session: Session):
    import uuid
    eval_db = IntelligentEvalDB(
        id=str(uuid.uuid4()),
        name="eval-dl-list",
        target_id="t1",
        status=IntelligentEvalStatus.EXECUTING.value,
    )
    db_session.add(eval_db)
    db_session.commit()

    for dtype in ("execute_session", "wait", "start_analysis"):
        r = client.post(
            f"/api/intelligent-evals/{eval_db.id}/decision-logs",
            json={"decision_type": dtype, "reason": "test", "context": {}, "cron_id": "cron-1"},
        )
        assert r.status_code == 200

    response = client.get(f"/api/intelligent-evals/{eval_db.id}/decision-logs")
    assert response.status_code == 200
    data = response.json()
    assert "logs" in data
    types = {log["decision_type"] for log in data["logs"]}
    assert types == {"execute_session", "wait", "start_analysis"}