"""Tests for ops_run claim queue (ACTIVITY-WP-0026)."""

from __future__ import annotations

import os
import uuid
from datetime import datetime, timedelta, timezone
from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from activity_core.ops_run_queue import (
    build_idempotency_key,
    emit_triggering_event_id,
    max_attempts,
    ops_run_queue_enabled,
    ops_run_to_dict,
)
from activity_core.rules.models import TaskSpec


def test_ops_run_queue_enabled_default(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("OPS_RUN_QUEUE_ENABLED", raising=False)
    assert ops_run_queue_enabled() is True
    monkeypatch.setenv("OPS_RUN_QUEUE_ENABLED", "false")
    assert ops_run_queue_enabled() is False
    monkeypatch.setenv("OPS_RUN_QUEUE_ENABLED", "1")
    assert ops_run_queue_enabled() is True


def test_build_idempotency_key() -> None:
    spec = TaskSpec(
        title="t",
        activity_definition_id="aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
        source_id="emit-fi",
        triggering_event_id="wf-1",
    )
    assert build_idempotency_key(spec) == (
        "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee:emit-fi:wf-1"
    )


def test_emit_triggering_event_id_scheduled_uses_run_id() -> None:
    """Bare 'scheduled' must not be the ops_run key for every weekday fire."""
    day1 = emit_triggering_event_id("scheduled", "run-day-1")
    day2 = emit_triggering_event_id("scheduled", "run-day-2")
    assert day1 == "run-day-1"
    assert day2 == "run-day-2"
    assert day1 != day2


def test_emit_triggering_event_id_prefers_scheduled_for() -> None:
    got = emit_triggering_event_id(
        "scheduled",
        "run-fallback",
        scheduled_for="2026-08-05T05:30:00+00:00",
    )
    assert got == "scheduled:2026-08-05T05:30:00+00:00"


def test_emit_triggering_event_id_passes_through_events_and_manual() -> None:
    assert emit_triggering_event_id("evt-abc", "run-x") == "evt-abc"
    assert (
        emit_triggering_event_id("manual-3da4cf06", "run-y") == "manual-3da4cf06"
    )


def test_scheduled_fires_produce_distinct_ops_keys() -> None:
    """Regression: two cron days must not share one ops_run idempotency key."""
    def_id = "3169ab1f-882b-59c7-9763-d014dc96f4fc"
    source = "emit-fi-daily-brief-task"
    key_aug4 = build_idempotency_key(
        TaskSpec(
            title="FI",
            activity_definition_id=def_id,
            source_id=source,
            triggering_event_id=emit_triggering_event_id("scheduled", "run-aug4"),
        )
    )
    key_aug5 = build_idempotency_key(
        TaskSpec(
            title="FI",
            activity_definition_id=def_id,
            source_id=source,
            triggering_event_id=emit_triggering_event_id("scheduled", "run-aug5"),
        )
    )
    # Old bug: both would be "...:scheduled"
    legacy = f"{def_id}:{source}:scheduled"
    assert key_aug4 != key_aug5
    assert key_aug4 != legacy
    assert key_aug5 != legacy


def test_max_attempts(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("OPS_RUN_MAX_ATTEMPTS", raising=False)
    assert max_attempts() == 3
    monkeypatch.setenv("OPS_RUN_MAX_ATTEMPTS", "5")
    assert max_attempts() == 5


def test_ops_run_to_dict_shape() -> None:
    now = datetime.now(timezone.utc)
    row = MagicMock()
    row.id = uuid.uuid4()
    row.activity_definition_id = uuid.uuid4()
    row.idempotency_key = "k"
    row.target_repo = "freedom-intelligence"
    row.title = "FI brief"
    row.description = "d"
    row.labels = ["automated", "research-brief"]
    row.priority = "medium"
    row.state = "open"
    row.claim_owner = None
    row.lease_until = None
    row.attempt = 0
    row.source_type = "rule"
    row.source_id = "emit"
    row.triggering_event_id = "e1"
    row.approach_hint = None
    row.result = {}
    row.created_at = now
    row.updated_at = now
    d = ops_run_to_dict(row)
    assert d["target_repo"] == "freedom-intelligence"
    assert d["state"] == "open"
    assert "research-brief" in d["labels"]
    assert d["created_at"]


@pytest.mark.asyncio
async def test_create_ops_run_disabled(monkeypatch: pytest.MonkeyPatch) -> None:
    from activity_core.ops_run_queue import create_ops_run_from_spec

    monkeypatch.setenv("OPS_RUN_QUEUE_ENABLED", "false")
    session = AsyncMock()
    spec = TaskSpec(
        title="t",
        activity_definition_id=str(uuid.uuid4()),
        source_id="s",
        triggering_event_id="e",
    )
    assert await create_ops_run_from_spec(session, spec) is None
    session.execute.assert_not_called()


@pytest.mark.asyncio
async def test_create_ops_run_inserts(monkeypatch: pytest.MonkeyPatch) -> None:
    from activity_core.ops_run_queue import create_ops_run_from_spec

    monkeypatch.setenv("OPS_RUN_QUEUE_ENABLED", "true")
    run_id = uuid.uuid4()
    result = MagicMock()
    result.scalar_one_or_none.return_value = run_id
    session = AsyncMock()
    session.execute = AsyncMock(return_value=result)
    spec = TaskSpec(
        title="FI daily",
        target_repo="freedom-intelligence",
        labels=["automated", "research-brief"],
        activity_definition_id=str(uuid.uuid4()),
        source_id="emit-fi-daily-brief-task",
        triggering_event_id="manual-1",
    )
    got = await create_ops_run_from_spec(session, spec)
    assert got == run_id
    session.execute.assert_awaited()


@pytest.mark.asyncio
async def test_claim_and_complete_roundtrip(monkeypatch: pytest.MonkeyPatch) -> None:
    """In-memory style: claim filters labels and complete transitions state."""
    from activity_core import ops_run_queue as oq

    now = datetime.now(timezone.utc)
    open_run = MagicMock()
    open_run.id = uuid.uuid4()
    open_run.state = "open"
    open_run.labels = ["automated", "research-brief"]
    open_run.attempt = 0
    open_run.claim_owner = None
    open_run.lease_until = None
    open_run.result = {}

    session = AsyncMock()

    reopen_result = MagicMock()
    reopen_result.rowcount = 0

    id_result = MagicMock()
    id_result.scalars.return_value.all.return_value = [open_run.id]

    async def execute_side_effect(stmt, *args, **kwargs):
        # reopen_stale_claims uses Update; claim select uses Select (may contain FOR UPDATE)
        name = type(stmt).__name__.lower()
        if name == "update":
            return reopen_result
        return id_result

    session.execute = AsyncMock(side_effect=execute_side_effect)
    session.get = AsyncMock(return_value=open_run)

    claimed = await oq.claim_ops_runs(
        session,
        worker_id="worker-1",
        labels=["research-brief"],
        limit=1,
        lease_seconds=60,
    )
    assert len(claimed) == 1
    assert open_run.state == "claimed"
    assert open_run.claim_owner == "worker-1"
    assert open_run.attempt == 1
    assert open_run.lease_until is not None
    assert open_run.lease_until > now

    done = await oq.complete_ops_run(
        session,
        open_run.id,
        worker_id="worker-1",
        result={"path": "briefs/x.md"},
    )
    assert done is not None
    assert open_run.state == "succeeded"
    assert open_run.result["path"] == "briefs/x.md"


@pytest.mark.asyncio
async def test_complete_persists_only_normalized_glas_evidence() -> None:
    from activity_core import ops_run_queue as oq

    row = MagicMock()
    row.state = "claimed"
    row.claim_owner = "worker-1"
    row.lease_until = datetime.now(timezone.utc) + timedelta(minutes=1)
    row.result = {}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    done = await oq.complete_ops_run(
        session,
        uuid.uuid4(),
        worker_id="worker-1",
        result={
            "ok": True,
            "evidence": {
                "request_id": "request-1",
                "profile_ref": "harness.agent-dev@1.0.0",
                "rein_id": "rein-aharness",
                "outcome": "succeeded",
                "duration_s": 0,
            },
            "tool_output": "must not persist",
        },
    )

    assert done is row
    assert row.result == {
        "ok": True,
        "execution_evidence": {
            "request_id": "request-1",
            "profile_ref": "harness.agent-dev@1.0.0",
            "rein_id": "rein-aharness",
            "outcome": "succeeded",
            "duration_s": 0,
        },
    }


@pytest.mark.asyncio
async def test_fail_reopen_under_max_attempts(monkeypatch: pytest.MonkeyPatch) -> None:
    from activity_core import ops_run_queue as oq

    monkeypatch.setenv("OPS_RUN_MAX_ATTEMPTS", "3")
    row = MagicMock()
    row.id = uuid.uuid4()
    row.state = "claimed"
    row.claim_owner = "w1"
    row.lease_until = datetime.now(timezone.utc) + timedelta(minutes=1)
    row.attempt = 1
    row.result = {}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    out = await oq.fail_ops_run(
        session, row.id, worker_id="w1", error="timeout", reopen=True
    )
    assert out is not None
    assert row.state == "open"
    assert row.claim_owner is None


@pytest.mark.asyncio
async def test_fail_permanent_at_max_attempts(monkeypatch: pytest.MonkeyPatch) -> None:
    from activity_core import ops_run_queue as oq

    monkeypatch.setenv("OPS_RUN_MAX_ATTEMPTS", "3")
    row = MagicMock()
    row.id = uuid.uuid4()
    row.state = "claimed"
    row.claim_owner = "w1"
    row.lease_until = datetime.now(timezone.utc) + timedelta(minutes=1)
    row.attempt = 3
    row.result = {}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    out = await oq.fail_ops_run(
        session, row.id, worker_id="w1", error="timeout", reopen=True
    )
    assert out is not None
    assert row.state == "failed"


@pytest.mark.asyncio
async def test_fail_persists_redacted_failure_evidence() -> None:
    from activity_core import ops_run_queue as oq

    row = MagicMock()
    row.state = "claimed"
    row.claim_owner = "worker-1"
    row.lease_until = datetime.now(timezone.utc) + timedelta(minutes=1)
    row.attempt = 1
    row.result = {}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    failed = await oq.fail_ops_run(
        session,
        uuid.uuid4(),
        worker_id="worker-1",
        error="execution refused",
        result={
            "ok": False,
            "evidence": {
                "request_id": "request-failed",
                "profile_ref": "harness.agent-dev@1.0.0",
                "rein_id": "rein-aharness",
                "outcome": "failed",
                "failure_stage": "execution",
                "error": "execution failed; inspect direct caller error",
                "duration_s": 3.5,
            },
            "tool_error": "raw provider failure must not persist",
        },
    )

    assert failed is row
    assert row.result["error"] == "execution refused"
    assert row.result["execution_evidence"]["failure_stage"] == "execution"
    assert "tool_error" not in row.result


@pytest.mark.asyncio
@pytest.mark.parametrize("lease_offset", [None, timedelta(0), timedelta(seconds=-1)])
async def test_heartbeat_rejects_missing_or_expired_lease(
    lease_offset: timedelta | None,
) -> None:
    from activity_core import ops_run_queue as oq

    now = datetime(2026, 8, 23, 10, 0, tzinfo=timezone.utc)
    row = MagicMock()
    row.state = "claimed"
    row.claim_owner = "worker-1"
    row.lease_until = now + lease_offset if lease_offset is not None else None
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    with patch.object(oq, "_utcnow", return_value=now):
        heartbeat = await oq.heartbeat_ops_run(
            session,
            uuid.uuid4(),
            worker_id="worker-1",
            lease_seconds=60,
        )

    assert heartbeat is None
    assert row.lease_until == (now + lease_offset if lease_offset is not None else None)
    session.get.assert_awaited_once()
    assert session.get.await_args.kwargs == {"with_for_update": True}


@pytest.mark.asyncio
async def test_complete_rejects_expired_lease_without_mutation() -> None:
    from activity_core import ops_run_queue as oq

    now = datetime(2026, 8, 23, 10, 0, tzinfo=timezone.utc)
    row = MagicMock()
    row.state = "claimed"
    row.claim_owner = "worker-1"
    row.lease_until = now - timedelta(microseconds=1)
    row.result = {"before": True}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    with patch.object(oq, "_utcnow", return_value=now):
        completed = await oq.complete_ops_run(
            session,
            uuid.uuid4(),
            worker_id="worker-1",
            result={"ok": True},
        )

    assert completed is None
    assert row.state == "claimed"
    assert row.result == {"before": True}


@pytest.mark.asyncio
async def test_fail_rejects_wrong_owner_with_active_lease() -> None:
    from activity_core import ops_run_queue as oq

    now = datetime(2026, 8, 23, 10, 0, tzinfo=timezone.utc)
    row = MagicMock()
    row.state = "claimed"
    row.claim_owner = "worker-1"
    row.lease_until = now + timedelta(minutes=1)
    row.result = {"before": True}
    session = AsyncMock()
    session.get = AsyncMock(return_value=row)

    with patch.object(oq, "_utcnow", return_value=now):
        failed = await oq.fail_ops_run(
            session,
            uuid.uuid4(),
            worker_id="worker-2",
            error="must not persist",
        )

    assert failed is None
    assert row.state == "claimed"
    assert row.result == {"before": True}


def test_label_filter_any_vs_all() -> None:
    """Document labels_mode semantics used by claim_ops_runs."""
    row_labels = {"automated", "research-brief"}
    want = {"research-brief", "missing"}
    assert bool(want & row_labels)  # any
    assert not want.issubset(row_labels)  # all