"""Tests for multi-credential runtime pooling and rotation."""

from __future__ import annotations

import base64
import json
import time
from datetime import datetime, timezone

import pytest


def _write_auth_store(tmp_path, payload: dict) -> None:
    hermes_home = tmp_path / "hermes"
    hermes_home.mkdir(parents=True, exist_ok=True)
    (hermes_home / "auth.json").write_text(json.dumps(payload, indent=2))


def _jwt_with_claims(claims: dict) -> str:
    def _part(payload: dict) -> str:
        raw = json.dumps(payload, separators=(",", ":")).encode("utf-8")
        return base64.urlsafe_b64encode(raw).decode("ascii").rstrip("=")

    return f"{_part({'alg': 'none', 'typ': 'JWT'})}.{_part(claims)}.sig"


def test_fill_first_selection_skips_recently_exhausted_entry(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                        "last_status": "exhausted",
                        "last_status_at": time.time(),
                        "last_error_code": 402,
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "***",
                        "last_status": "ok",
                        "last_status_at": None,
                        "last_error_code": None,
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    entry = pool.select()

    assert entry is not None
    assert entry.id == "cred-2"
    assert pool.current().id == "cred-2"


def test_select_clears_expired_exhaustion(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-1",
                        "label": "old",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                        "last_status": "exhausted",
                        "last_status_at": time.time() - 90000,
                        "last_error_code": 402,
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    entry = pool.select()

    assert entry is not None
    assert entry.last_status == "ok"


def test_round_robin_strategy_rotates_priorities(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "***",
                    },
                ]
            },
        },
    )
    config_path = tmp_path / "hermes" / "config.yaml"
    config_path.write_text("credential_pool_strategies:\n  openrouter: round_robin\n")

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    first = pool.select()
    assert first is not None
    assert first.id == "cred-1"

    reloaded = load_pool("openrouter")
    second = reloaded.select()
    assert second is not None
    assert second.id == "cred-2"


def test_random_strategy_uses_random_choice(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("OPENROUTER_API_KEY", raising=False)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "***",
                    },
                ]
            },
        },
    )
    config_path = tmp_path / "hermes" / "config.yaml"
    config_path.write_text("credential_pool_strategies:\n  openrouter: random\n")

    monkeypatch.setattr("agent.credential_pool.random.choice", lambda entries: entries[-1])

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    selected = pool.select()
    assert selected is not None
    assert selected.id == "cred-2"



def test_exhausted_entry_resets_after_ttl(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-or-primary",
                        "base_url": "https://openrouter.ai/api/v1",
                        "last_status": "exhausted",
                        "last_status_at": time.time() - 90000,
                        "last_error_code": 429,
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.id == "cred-1"
    assert entry.last_status == "ok"


def test_exhausted_402_entry_resets_after_one_hour(tmp_path, monkeypatch):
    """402-exhausted credentials recover after 1 hour, not 24."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                        "base_url": "https://openrouter.ai/api/v1",
                        "last_status": "exhausted",
                        "last_status_at": time.time() - 3700,  # ~1h2m ago
                        "last_error_code": 402,
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.id == "cred-1"
    assert entry.last_status == "ok"


def test_exhausted_401_entry_resets_after_five_minutes(tmp_path, monkeypatch):
    """Transient auth failures should not strand single-key setups for an hour."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                        "base_url": "https://openrouter.ai/api/v1",
                        "last_status": "exhausted",
                        "last_status_at": time.time() - 310,
                        "last_error_code": 401,
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.id == "cred-1"
    assert entry.last_status == "ok"


def test_explicit_reset_timestamp_overrides_default_429_ttl(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # Prevent auto-seeding from Codex CLI tokens on the host
    monkeypatch.setattr(
        "hermes_cli.auth._import_codex_cli_tokens",
        lambda: None,
    )
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-1",
                        "label": "weekly-reset",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "tok-1",
                        "last_status": "exhausted",
                        "last_status_at": time.time() - 7200,
                        "last_error_code": 429,
                        "last_error_reason": "device_code_exhausted",
                        "last_error_reset_at": time.time() + 7 * 24 * 60 * 60,
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openai-codex")
    assert pool.has_available() is False
    assert pool.select() is None


def test_mark_exhausted_and_rotate_persists_status(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-ant-api-primary",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-ant-api-secondary",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    assert pool.select().id == "cred-1"

    next_entry = pool.mark_exhausted_and_rotate(status_code=402)

    assert next_entry is not None
    assert next_entry.id == "cred-2"

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["anthropic"][0]
    assert persisted["last_status"] == "exhausted"
    assert persisted["last_error_code"] == 402


def test_billing_rotation_marks_all_entries_sharing_failed_key(tmp_path, monkeypatch):
    """A 402 must exhaust every pool entry backed by the same API key.

    Regression: the same key can back more than one pool entry — e.g. an
    explicit pool entry plus a ``model_config`` entry auto-seeded from
    ``model.api_key`` (both carry the identical ``runtime_api_key``).  When
    ``mark_exhausted_and_rotate`` is called with ``api_key_hint`` it matched
    only the *first* such entry, leaving the sibling OK.  ``_select_unlocked()``
    then kept handing back the same depleted key, so the billing-recovery
    ``continue`` loop in the conversation retry path never converged — the
    request hung ~2.5min until the client disconnected, with no 402 ever
    surfaced to the user.  All entries sharing the failed key must be
    exhausted so the pool reaches "no available entries" and the error
    propagates immediately.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    shared_key = "sk-deepseek-shared"
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "custom": [
                    {
                        "id": "cred-explicit",
                        "label": "520555",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": shared_key,
                        "base_url": "https://api.deepseek.com",
                    },
                    {
                        "id": "cred-model-config",
                        "label": "model_config",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": shared_key,
                        "base_url": "https://api.deepseek.com",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_EXHAUSTED

    pool = load_pool("custom")

    # First 402 on the shared key: rotation must NOT hand back a sibling
    # entry that wraps the same depleted key — it must converge to None.
    next_entry = pool.mark_exhausted_and_rotate(
        status_code=402,
        api_key_hint=shared_key,
    )
    assert next_entry is None

    # Both entries are now exhausted (not just the first match).
    statuses = {entry.id: entry.last_status for entry in pool.entries()}
    assert statuses["cred-explicit"] == STATUS_EXHAUSTED
    assert statuses["cred-model-config"] == STATUS_EXHAUSTED


def test_unmatched_api_key_hint_rotates_without_benching_innocent_key(tmp_path, monkeypatch):
    """An api_key_hint matching no entry must not quarantine a healthy key.

    Regression: when the hint was unmatched (key rotated away, or a wrapper
    whose runtime key differs), mark_exhausted_and_rotate fell through to
    current()/_select_unlocked() — on a freshly loaded pool that selects the
    NEXT healthy key and benched it for the full cooldown TTL, punishing an
    innocent credential.  Now it rotates without marking anything.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # Keep the dev machine's live ~/.claude credentials from seeding a
    # claude_code singleton entry into this pool (same isolation as the
    # other anthropic pool tests in this file).
    monkeypatch.setattr("agent.anthropic_adapter.read_claude_code_credentials", lambda: None)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-ant-api-primary",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-ant-api-secondary",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_DEAD, STATUS_EXHAUSTED

    # Freshly loaded pool: current() is None, exactly the shape of the bug.
    pool = load_pool("anthropic")

    next_entry = pool.mark_exhausted_and_rotate(
        status_code=429,
        api_key_hint="sk-ant-api-rotated-away",
    )

    # A fresh selection is still handed back so the caller can retry...
    assert next_entry is not None

    # ...but no credential was benched, in memory or on disk.
    assert all(
        entry.last_status not in (STATUS_EXHAUSTED, STATUS_DEAD)
        for entry in pool.entries()
    )
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    for persisted in auth_payload["credential_pool"]["anthropic"]:
        assert persisted.get("last_status") not in (STATUS_EXHAUSTED, STATUS_DEAD)
        assert persisted.get("last_error_code") is None


def test_token_invalidated_marks_credential_dead(tmp_path, monkeypatch):
    """OpenAI Codex token_invalidated must mark the credential DEAD, not exhausted.

    Regression for #32849: when an OAuth credential is revoked upstream, the
    1-hour exhausted TTL means it re-enters rotation every hour and fails
    again with the same 401 — surfacing as "Failed to generate context
    summary" on context compression.  Terminal OAuth failures should never
    auto-recover.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-dead",
                        "label": "revoked",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "revoked-at",
                        "refresh_token": "revoked-rt",
                    },
                    {
                        "id": "cred-ok",
                        "label": "healthy",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "healthy-at",
                        "refresh_token": "healthy-rt",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_DEAD

    pool = load_pool("openai-codex")
    assert pool.select().id == "cred-dead"

    # Simulate the exact OpenAI Codex 401 token_invalidated response shape.
    next_entry = pool.mark_exhausted_and_rotate(
        status_code=401,
        error_context={
            "reason": "token_invalidated",
            "message": "Your authentication token has been invalidated. Please try signing in again.",
        },
    )

    # Rotation still works — we hand off to the healthy credential.
    assert next_entry is not None
    assert next_entry.id == "cred-ok"

    # The revoked credential is now permanently marked DEAD.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"][0]
    assert persisted["last_status"] == STATUS_DEAD
    assert persisted["last_error_code"] == 401
    assert persisted["last_error_reason"] == "token_invalidated"


def test_dead_credential_never_re_enters_rotation_after_ttl(tmp_path, monkeypatch):
    """A DEAD credential must stay excluded regardless of how much time passes.

    The exhausted TTL clears entries after 5 min (401) / 1 hour (429).
    A DEAD credential has no recovery TTL — it stays dead until either
    (a) an explicit re-auth write-side sync rewrites the tokens, or
    (b) the manual-prune TTL elapses (covered by separate tests below).
    This test verifies the core invariant in the recent-entry window.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # DEAD entry from 2 hours ago — well past the exhausted TTLs (5min/1h)
    # but well within the 24h manual-prune window.
    two_hours_ago = time.time() - (2 * 3600)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-dead",
                        "label": "revoked",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "revoked-at",
                        "refresh_token": "revoked-rt",
                        "last_status": "dead",
                        "last_status_at": two_hours_ago,
                        "last_error_code": 401,
                        "last_error_reason": "token_invalidated",
                    },
                    {
                        "id": "cred-ok",
                        "label": "healthy",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "healthy-at",
                        "refresh_token": "healthy-rt",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_DEAD

    pool = load_pool("openai-codex")
    selected = pool.select()
    # Should skip the dead entry and pick the healthy one — even though
    # the dead entry has priority 0 (would normally be picked first) and
    # plenty of time has passed since it was marked dead.
    assert selected is not None
    assert selected.id == "cred-ok"

    # The DEAD entry is still marked dead on disk — not cleared by TTL.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    dead_entry = next(e for e in auth_payload["credential_pool"]["openai-codex"]
                       if e["id"] == "cred-dead")
    assert dead_entry["last_status"] == STATUS_DEAD


def test_429_rate_limit_still_uses_exhausted_not_dead(tmp_path, monkeypatch):
    """429 rate limits must NOT be treated as terminal.

    They should keep the existing 1-hour TTL cooldown semantics so the
    credential re-enters rotation once the rate window resets.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "at-1",
                        "refresh_token": "rt-1",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "at-2",
                        "refresh_token": "rt-2",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_EXHAUSTED

    pool = load_pool("openai-codex")
    assert pool.select().id == "cred-1"

    next_entry = pool.mark_exhausted_and_rotate(
        status_code=429,
        error_context={"reason": "rate_limit_exceeded", "message": "Rate limit exceeded"},
    )
    assert next_entry is not None
    assert next_entry.id == "cred-2"

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"][0]
    # 429 stays exhausted (transient) — NOT dead.
    assert persisted["last_status"] == STATUS_EXHAUSTED
    assert persisted["last_error_code"] == 429


def test_generic_401_without_terminal_reason_still_uses_exhausted(tmp_path, monkeypatch):
    """A 401 with no specific code/reason should keep TTL semantics.

    Only specific terminal reasons (token_invalidated, token_revoked, etc.)
    transition to DEAD.  A generic 401 might be a transient server-side
    issue worth retrying after the 5-min TTL.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "at-1",
                        "refresh_token": "rt-1",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "at-2",
                        "refresh_token": "rt-2",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_EXHAUSTED

    pool = load_pool("openai-codex")
    pool.select()

    # 401 with no specific reason — stays exhausted, NOT dead.
    pool.mark_exhausted_and_rotate(
        status_code=401,
        error_context={"message": "Unauthorized"},
    )

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"][0]
    assert persisted["last_status"] == STATUS_EXHAUSTED
    assert persisted["last_error_code"] == 401


def test_dead_manual_entry_pruned_after_24h(tmp_path, monkeypatch):
    """A DEAD manual entry is removed from the pool after the prune TTL.

    Manual entries (``manual:*``) are independent credentials with no
    singleton to re-seed from, so we can clean them up after a quiet
    window without losing recoverability — the user can always re-add
    via ``hermes auth add``.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # DEAD entry from > 24h ago
    long_ago = time.time() - (25 * 3600)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-old-dead",
                        "label": "ancient-dead",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "stale",
                        "refresh_token": "stale",
                        "last_status": "dead",
                        "last_status_at": long_ago,
                        "last_error_code": 401,
                        "last_error_reason": "token_invalidated",
                    },
                    {
                        "id": "cred-ok",
                        "label": "healthy",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "healthy-at",
                        "refresh_token": "healthy-rt",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openai-codex")
    # Trigger _available_entries via select; that runs the prune.
    selected = pool.select()
    assert selected is not None
    assert selected.id == "cred-ok"

    # On-disk pool should have the dead entry removed.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"]
    assert len(persisted) == 1
    assert persisted[0]["id"] == "cred-ok"


def test_dead_manual_entry_kept_within_24h(tmp_path, monkeypatch):
    """A DEAD manual entry stays in the pool until the prune TTL elapses.

    Recent DEAD entries are kept so the audit trail (last_error_reason,
    timestamps) remains visible while the user investigates.  They simply
    don't participate in rotation (covered by the DEAD-skip test above).
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # DEAD entry from only an hour ago — well within the 24h window
    recent = time.time() - 3600
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-recent-dead",
                        "label": "recent-dead",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:device_code",
                        "access_token": "stale",
                        "refresh_token": "stale",
                        "last_status": "dead",
                        "last_status_at": recent,
                        "last_error_code": 401,
                        "last_error_reason": "token_invalidated",
                    },
                    {
                        "id": "cred-ok",
                        "label": "healthy",
                        "auth_type": "oauth",
                        "priority": 1,
                        "source": "manual:device_code",
                        "access_token": "healthy-at",
                        "refresh_token": "healthy-rt",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_DEAD

    pool = load_pool("openai-codex")
    selected = pool.select()
    assert selected is not None
    assert selected.id == "cred-ok"

    # On-disk pool should still have BOTH entries — recent dead is preserved.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"]
    assert len(persisted) == 2
    dead_entry = next(e for e in persisted if e["id"] == "cred-recent-dead")
    assert dead_entry["last_status"] == STATUS_DEAD


def test_dead_singleton_seeded_entry_not_pruned(tmp_path, monkeypatch):
    """A DEAD ``device_code`` entry must NOT be pruned even after 24h.

    Singleton-seeded entries get re-created by ``_seed_from_singletons`` on
    every ``load_pool()``, so pruning them is pointless — they reappear
    immediately with the same stale singleton tokens.  Keep them visible
    with the DEAD marker so the user knows what's broken.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    long_ago = time.time() - (48 * 3600)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "providers": {
                "openai-codex": {
                    "tokens": {"access_token": "revoked-at", "refresh_token": "revoked-rt"},
                    "last_refresh": "2026-01-01T00:00:00Z",
                    "auth_mode": "chatgpt",
                },
            },
            "credential_pool": {
                "openai-codex": [
                    {
                        "id": "cred-seeded-dead",
                        "label": "seeded-dead",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "device_code",   # singleton-seeded, NOT manual
                        "access_token": "revoked-at",
                        "refresh_token": "revoked-rt",
                        "last_status": "dead",
                        "last_status_at": long_ago,
                        "last_error_code": 401,
                        "last_error_reason": "token_invalidated",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool, STATUS_DEAD

    pool = load_pool("openai-codex")
    # No healthy entry available; select returns None (pool empty for rotation).
    assert pool.select() is None

    # On-disk: the singleton-seeded DEAD entry is preserved.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openai-codex"]
    assert len(persisted) == 1
    assert persisted[0]["id"] == "cred-seeded-dead"
    assert persisted[0]["last_status"] == STATUS_DEAD


def test_load_pool_seeds_env_api_key(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-seeded")
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "env:OPENROUTER_API_KEY"
    assert entry.access_token == "sk-or-seeded"



def test_load_pool_does_not_persist_env_seeded_secret_value(tmp_path, monkeypatch):
    """Runtime env keys may be used in memory but must not land in auth.json."""
    sentinel = "S3NTINEL_DO_NOT_PERSIST_OPENROUTER"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", sentinel)
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "env:OPENROUTER_API_KEY"
    assert entry.access_token == sentinel

    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    persisted = json.loads(auth_text)["credential_pool"]["openrouter"][0]
    assert persisted["source"] == "env:OPENROUTER_API_KEY"
    assert persisted["label"] == "OPENROUTER_API_KEY"
    assert persisted["auth_type"] == "api_key"
    assert persisted["priority"] == 0
    assert "access_token" not in persisted
    assert persisted["secret_fingerprint"].startswith("sha256:")


def test_load_pool_collapses_duplicate_env_rows_to_active_key(tmp_path, monkeypatch):
    """One env source is one credential, even if auth.json contains stale duplicates."""
    key = "sk-or-active-main-key"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", key)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "current-row",
                        "label": "OPENROUTER_API_KEY",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "env:OPENROUTER_API_KEY",
                    },
                    {
                        "id": "stale-duplicate",
                        "label": "OPENROUTER_API_KEY",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "env:OPENROUTER_API_KEY",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")

    assert [(entry.id, entry.runtime_api_key) for entry in pool.entries()] == [
        ("current-row", key)
    ]
    persisted = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    assert [entry["id"] for entry in persisted["credential_pool"]["openrouter"]] == [
        "current-row"
    ]


def test_credential_pool_never_selects_empty_borrowed_entry():
    from agent.credential_pool import CredentialPool, PooledCredential

    pool = CredentialPool(
        "openrouter",
        [
            PooledCredential(
                provider="openrouter",
                id="metadata-only",
                label="OPENROUTER_API_KEY",
                auth_type="api_key",
                priority=0,
                source="env:OPENROUTER_API_KEY",
                access_token="",
            )
        ],
    )

    assert pool.select() is None
    assert pool.acquire_lease() is None


def test_load_pool_persists_bitwarden_origin_metadata_without_secret(tmp_path, monkeypatch):
    """Bitwarden-injected env vars retain source metadata but not raw values."""
    sentinel = "S3NTINEL_DO_NOT_PERSIST_BITWARDEN"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", sentinel)
    monkeypatch.setattr(
        "hermes_cli.env_loader.get_secret_source",
        lambda env_var: "bitwarden" if env_var == "OPENROUTER_API_KEY" else None,
    )
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.access_token == sentinel
    assert entry.source == "env:OPENROUTER_API_KEY"

    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    persisted = json.loads(auth_text)["credential_pool"]["openrouter"][0]
    assert persisted["source"] == "env:OPENROUTER_API_KEY"
    assert persisted["secret_source"] == "bitwarden"
    assert "access_token" not in persisted



def test_load_pool_sanitizes_legacy_raw_borrowed_entry_when_value_unchanged(tmp_path, monkeypatch):
    """Existing raw env-seeded pool entries are rewritten even if the env value matches."""
    sentinel = "S3NTINEL_DO_NOT_PERSIST_LEGACY_RAW"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", sentinel)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "legacy-env",
                        "label": "OPENROUTER_API_KEY",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "env:OPENROUTER_API_KEY",
                        "access_token": sentinel,
                        "base_url": "https://openrouter.ai/api/v1",
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.access_token == sentinel
    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    persisted = json.loads(auth_text)["credential_pool"]["openrouter"][0]
    assert persisted["id"] == "legacy-env"
    assert "access_token" not in persisted
    assert persisted["secret_fingerprint"].startswith("sha256:")



def test_pooled_credential_to_dict_strips_borrowed_secret_fields():
    from agent.credential_pool import PooledCredential

    sentinel = "S3NTINEL_DO_NOT_PERSIST_TO_DICT"
    credential = PooledCredential(
        provider="openrouter",
        id="borrowed-1",
        label="vault-ref",
        auth_type="api_key",
        priority=3,
        source="vault:openrouter/api-key",
        access_token=sentinel,
        refresh_token=f"refresh-{sentinel}",
        agent_key=f"agent-{sentinel}",
        request_count=7,
        last_status="ok",
        extra={
            "api_key": f"extra-{sentinel}",
            "client_secret": f"client-{sentinel}",
            "secret_key": f"secret-key-{sentinel}",
            "authToken": f"auth-token-{sentinel}",
            "refreshToken": f"camel-refresh-{sentinel}",
            "authorization": f"Bearer {sentinel}",
            "tokens": {"access_token": f"nested-{sentinel}"},
            "token_type": "Bearer",
            "scope": "inference",
        },
    )

    payload = credential.to_dict()
    serialized = json.dumps(payload)

    assert sentinel not in serialized
    assert "access_token" not in payload
    assert "refresh_token" not in payload
    assert "agent_key" not in payload
    assert "api_key" not in payload
    assert "client_secret" not in payload
    assert "secret_key" not in payload
    assert "authToken" not in payload
    assert "refreshToken" not in payload
    assert "authorization" not in payload
    assert "tokens" not in payload
    assert payload["source"] == "vault:openrouter/api-key"
    assert payload["label"] == "vault-ref"
    assert payload["request_count"] == 7
    assert payload["token_type"] == "Bearer"
    assert payload["scope"] == "inference"
    assert payload["secret_fingerprint"].startswith("sha256:")



@pytest.mark.parametrize("source", [
    "age://openrouter/api-key",
    "systemd",
    "keyring",
    "1password",
    "pass",
    "sops",
    "future_secret_store:openrouter",
])
def test_borrowed_source_variants_strip_secret_fields(source):
    from agent.credential_pool import PooledCredential

    sentinel = f"S3NTINEL_DO_NOT_PERSIST_{source.replace(':', '_').replace('/', '_')}"
    credential = PooledCredential(
        provider="openrouter",
        id="borrowed-variant",
        label="borrowed",
        auth_type="api_key",
        priority=0,
        source=source,
        access_token=sentinel,
        refresh_token=f"refresh-{sentinel}",
    )

    payload = credential.to_dict()
    serialized = json.dumps(payload)

    assert sentinel not in serialized
    assert "access_token" not in payload
    assert "refresh_token" not in payload
    assert payload["source"] == source
    assert payload["secret_fingerprint"].startswith("sha256:")



def test_load_pool_prunes_stale_borrowed_custom_config_entry(tmp_path, monkeypatch):
    sentinel = "S3NTINEL_DO_NOT_PERSIST_STALE_CUSTOM"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "custom:foo": [
                    {
                        "id": "stale-custom",
                        "label": "Foo",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "config:Foo",
                        "access_token": sentinel,
                        "base_url": "https://foo.example/v1",
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("custom:foo")

    assert pool.entries() == []
    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    assert json.loads(auth_text)["credential_pool"]["custom:foo"] == []



def test_write_credential_pool_sanitizes_borrowed_payload_at_disk_boundary(tmp_path, monkeypatch):
    """Direct dictionary callers cannot bypass the borrowed-secret guard."""
    sentinel = "S3NTINEL_DO_NOT_PERSIST_DIRECT_WRITE"
    manual_secret = "MANUAL_SECRET_STAYS_PERSISTABLE"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))

    from hermes_cli.auth import write_credential_pool

    write_credential_pool("openrouter", [
        {
            "id": "borrowed-1",
            "label": "systemd-ref",
            "auth_type": "api_key",
            "priority": 0,
            "source": "systemd://hermes/openrouter",
            "access_token": sentinel,
            "refresh_token": f"refresh-{sentinel}",
            "agent_key": f"agent-{sentinel}",
            "api_key": f"extra-{sentinel}",
        },
        {
            "id": "manual-1",
            "label": "manual",
            "auth_type": "api_key",
            "priority": 1,
            "source": "manual",
            "access_token": manual_secret,
        },
    ])

    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    assert manual_secret in auth_text
    entries = json.loads(auth_text)["credential_pool"]["openrouter"]
    borrowed, manual = entries
    assert borrowed["source"] == "systemd://hermes/openrouter"
    assert "access_token" not in borrowed
    assert "refresh_token" not in borrowed
    assert "agent_key" not in borrowed
    assert "api_key" not in borrowed
    assert borrowed["secret_fingerprint"].startswith("sha256:")
    assert manual["access_token"] == manual_secret



def test_write_credential_pool_treats_unowned_oauth_source_as_borrowed(tmp_path, monkeypatch):
    sentinel = "S3NTINEL_DO_NOT_PERSIST_UNOWNED_OAUTH"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))

    from hermes_cli.auth import write_credential_pool

    write_credential_pool("openrouter", [
        {
            "id": "unowned-oauth",
            "label": "unowned-oauth",
            "auth_type": "oauth",
            "priority": 0,
            "source": "oauth",
            "access_token": sentinel,
            "refresh_token": f"refresh-{sentinel}",
        }
    ])

    auth_text = (tmp_path / "hermes" / "auth.json").read_text()
    assert sentinel not in auth_text
    persisted = json.loads(auth_text)["credential_pool"]["openrouter"][0]
    assert persisted["source"] == "oauth"
    assert "access_token" not in persisted
    assert "refresh_token" not in persisted
    assert persisted["secret_fingerprint"].startswith("sha256:")



def test_write_credential_pool_preserves_known_provider_owned_oauth_state(tmp_path, monkeypatch):
    sentinel = "PROVIDER_OWNED_DEVICE_CODE_STAYS_PERSISTABLE"
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))

    from hermes_cli.auth import write_credential_pool

    write_credential_pool("nous", [
        {
            "id": "nous-device",
            "label": "device-code",
            "auth_type": "oauth",
            "priority": 0,
            "source": "device_code",
            "access_token": sentinel,
            "refresh_token": f"refresh-{sentinel}",
            "agent_key": f"agent-{sentinel}",
        }
    ])

    persisted = json.loads((tmp_path / "hermes" / "auth.json").read_text())["credential_pool"]["nous"][0]
    assert persisted["access_token"] == sentinel
    assert persisted["refresh_token"] == f"refresh-{sentinel}"
    assert persisted["agent_key"] == f"agent-{sentinel}"



def test_load_pool_prefers_dotenv_over_stale_os_environ(tmp_path, monkeypatch):
    """Regression for #18254: stale OPENROUTER_API_KEY in os.environ (inherited
    from a parent shell) must NOT shadow the fresh key in ~/.hermes/.env when
    seeding the credential pool. Before the fix, `get_env_value()` preferred
    os.environ and silently wrote the stale value into auth.json, causing
    persistent 401 errors after key rotation.
    """
    hermes_home = tmp_path / "hermes"
    hermes_home.mkdir()
    monkeypatch.setenv("HERMES_HOME", str(hermes_home))

    # Simulate the bug: parent shell exported a stale test key
    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-STALE-from-shell")

    # User edited ~/.hermes/.env with the fresh key
    (hermes_home / ".env").write_text(
        "OPENROUTER_API_KEY=sk-or-FRESH-from-dotenv\n"
    )

    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool
    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "env:OPENROUTER_API_KEY"
    # The fresh key from .env must win over the stale shell export
    assert entry.access_token == "sk-or-FRESH-from-dotenv", (
        f"Expected .env to win, got {entry.access_token!r}"
    )


def test_load_pool_falls_back_to_os_environ_when_dotenv_empty(tmp_path, monkeypatch):
    """When ~/.hermes/.env does not define OPENROUTER_API_KEY (typical Docker /
    K8s / systemd deployment), seeding must still pick up the key from
    os.environ. Guards against regressions that would break production
    deployments relying on runtime-injected env vars.
    """
    hermes_home = tmp_path / "hermes"
    hermes_home.mkdir()
    monkeypatch.setenv("HERMES_HOME", str(hermes_home))
    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-from-runtime-env")

    # .env exists but does not define OPENROUTER_API_KEY
    (hermes_home / ".env").write_text("SOME_OTHER_VAR=unrelated\n")

    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool
    pool = load_pool("openrouter")
    entry = pool.select()

    assert entry is not None
    assert entry.access_token == "sk-or-from-runtime-env"


def test_load_pool_preserves_env_seeded_entry_when_env_is_missing(tmp_path, monkeypatch):
    # Regression for #9331: load_pool() is a non-destructive read. A process
    # that lacks the seeding env var must NOT delete the persisted pool entry
    # that another process correctly seeded.
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("OPENROUTER_API_KEY", raising=False)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "seeded-env",
                        "label": "OPENROUTER_API_KEY",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "env:OPENROUTER_API_KEY",
                        "access_token": "stale-token",
                        "base_url": "https://openrouter.ai/api/v1",
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")

    entries = pool.entries()
    assert len(entries) == 1
    assert entries[0].source == "env:OPENROUTER_API_KEY"

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["openrouter"]
    assert len(persisted) == 1
    assert persisted[0]["source"] == "env:OPENROUTER_API_KEY"


def test_load_pool_missing_env_does_not_overwrite_other_process_seed(tmp_path, monkeypatch):
    # The exact cross-process oscillation described in #9331: a process without
    # MINIMAX_API_KEY must leave the on-disk entry intact for processes that
    # do have it.
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("MINIMAX_API_KEY", raising=False)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "minimax": [
                    {
                        "id": "minimax-env",
                        "label": "MINIMAX_API_KEY",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "env:MINIMAX_API_KEY",
                        "access_token": "seeded-by-other-process",
                        "base_url": "https://api.minimaxi.chat/v1",
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("minimax")

    assert pool.has_credentials()
    assert len(pool.entries()) == 1
    assert pool.entries()[0].source == "env:MINIMAX_API_KEY"

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    persisted = auth_payload["credential_pool"]["minimax"]
    assert len(persisted) == 1
    assert persisted[0]["source"] == "env:MINIMAX_API_KEY"


def test_load_pool_migrates_nous_provider_state(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-token",
                    "refresh_token": "refresh-token",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                }
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "device_code"
    assert entry.portal_base_url == "https://portal.example.com"
    assert entry.agent_key == "agent-key"


def test_load_pool_mirrors_nous_invoke_jwt_agent_key_runtime_api_key(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    expires_at = datetime.fromtimestamp(time.time() + 3600, tz=timezone.utc).isoformat()
    token = _jwt_with_claims({
        "sub": "test-user",
        "scope": ["inference:invoke"],
        "exp": int(time.time() + 3600),
    })
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": token,
                    "refresh_token": "refresh-token",
                    "expires_at": expires_at,
                    "agent_key": token,
                    "agent_key_expires_at": expires_at,
                }
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "device_code"
    assert entry.agent_key == token
    assert entry.runtime_api_key == token

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    pool_entry = auth_payload["credential_pool"]["nous"][0]
    assert pool_entry["agent_key"] == token
    assert pool_entry["agent_key_expires_at"] == expires_at


def test_nous_runtime_api_key_rejects_opaque_agent_key():
    from agent.credential_pool import PooledCredential

    entry = PooledCredential(
        provider="nous",
        id="nous-opaque",
        label="opaque",
        auth_type="oauth",
        priority=0,
        source="device_code",
        access_token="opaque-access-token",
        refresh_token="refresh-token",
        agent_key="opaque-agent-key",
        agent_key_expires_at=datetime.fromtimestamp(
            time.time() + 3600,
            tz=timezone.utc,
        ).isoformat(),
        extra={"scope": "inference:invoke"},
    )

    assert entry.runtime_api_key == ""


def test_nous_pool_terminal_refresh_removes_device_code_entry(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("HERMES_SHARED_AUTH_DIR", str(tmp_path / "shared"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-token",
                    "refresh_token": "refresh-token",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                }
            },
        },
    )

    from agent.credential_pool import PooledCredential, load_pool
    from hermes_cli import auth as auth_mod
    from hermes_cli.auth import AuthError

    refresh_calls = {"count": 0}

    def _terminal_refresh_failure(*_args, **_kwargs):
        refresh_calls["count"] += 1
        raise AuthError(
            "Refresh session has been revoked",
            provider="nous",
            code="invalid_grant",
            relogin_required=True,
        )

    pool = load_pool("nous")
    selected = pool.select()
    assert selected is not None
    assert selected.source == "device_code"
    pool.add_entry(PooledCredential.from_dict("nous", {
        "id": "legacy-seeded",
        "source": "manual:device_code",
        "auth_type": "oauth",
        "access_token": "old-access-token",
        "refresh_token": "old-refresh-token",
        "agent_key": "old-agent-key",
    }))
    pool.add_entry(PooledCredential.from_dict("nous", {
        "id": "manual-key",
        "source": "manual",
        "auth_type": "api_key",
        "access_token": "manual-nous-key",
    }))

    monkeypatch.setattr(auth_mod, "resolve_nous_runtime_credentials", _terminal_refresh_failure)

    assert pool.try_refresh_current() is None

    assert [entry.id for entry in pool.entries()] == ["manual-key"]

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    nous_state = auth_payload["providers"]["nous"]
    assert not nous_state.get("refresh_token")
    assert not nous_state.get("access_token")
    assert not nous_state.get("agent_key")
    assert nous_state["last_auth_error"]["code"] == "invalid_grant"
    assert [entry["id"] for entry in auth_payload["credential_pool"]["nous"]] == ["manual-key"]

    assert pool.try_refresh_current() is None
    assert refresh_calls["count"] == 1


def test_load_pool_removes_nous_device_code_when_singleton_quarantined(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "last_auth_error": {"code": "invalid_grant"},
                }
            },
            "credential_pool": {
                "nous": [
                    {
                        "id": "seeded-current",
                        "source": "device_code",
                        "auth_type": "oauth",
                        "access_token": "stale-access",
                        "refresh_token": "stale-refresh",
                        "agent_key": "stale-agent",
                    },
                    {
                        "id": "seeded-legacy",
                        "source": "manual:device_code",
                        "auth_type": "oauth",
                        "access_token": "older-stale-access",
                    },
                    {
                        "id": "manual-key",
                        "source": "manual",
                        "auth_type": "api_key",
                        "access_token": "manual-nous-key",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")

    assert [entry.id for entry in pool.entries()] == ["manual-key"]
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    assert [entry["id"] for entry in auth_payload["credential_pool"]["nous"]] == ["manual-key"]


def test_load_pool_removes_stale_file_backed_singleton_entry(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
    monkeypatch.delenv("ANTHROPIC_TOKEN", raising=False)
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "seeded-file",
                        "label": "claude-code",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "claude_code",
                        "access_token": "stale-access-token",
                        "refresh_token": "stale-refresh-token",
                        "expires_at_ms": int(time.time() * 1000) + 60_000,
                    }
                ]
            },
        },
    )

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: None,
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: None,
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")

    assert pool.entries() == []

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    assert auth_payload["credential_pool"]["anthropic"] == []


def test_load_pool_migrates_nous_provider_state_preserves_tls(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-token",
                    "refresh_token": "refresh-token",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                    "tls": {
                        "insecure": True,
                        "ca_bundle": "/tmp/nous-ca.pem",
                    },
                }
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entry = pool.select()

    assert entry is not None
    assert entry.tls == {
        "insecure": True,
        "ca_bundle": "/tmp/nous-ca.pem",
    }

    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    assert auth_payload["credential_pool"]["nous"][0]["tls"] == {
        "insecure": True,
        "ca_bundle": "/tmp/nous-ca.pem",
    }


def test_singleton_seed_does_not_clobber_manual_oauth_entry(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
    monkeypatch.delenv("ANTHROPIC_TOKEN", raising=False)
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    monkeypatch.setattr("hermes_cli.auth.is_provider_explicitly_configured", lambda pid: True)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "manual-1",
                        "label": "manual-pkce",
                        "auth_type": "oauth",
                        "priority": 0,
                        "source": "manual:hermes_pkce",
                        "access_token": "manual-token",
                        "refresh_token": "manual-refresh",
                        "expires_at_ms": 1711234567000,
                    }
                ]
            },
        },
    )

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: {
            "accessToken": "seeded-token",
            "refreshToken": "seeded-refresh",
            "expiresAt": 1711234999000,
        },
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: None,
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    entries = pool.entries()

    assert len(entries) == 2
    assert {entry.source for entry in entries} == {"manual:hermes_pkce", "hermes_pkce"}


def test_load_pool_prefers_anthropic_env_token_over_file_backed_oauth(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
    monkeypatch.setenv("ANTHROPIC_TOKEN", "env-override-token")
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: {
            "accessToken": "file-backed-token",
            "refreshToken": "refresh-token",
            "expiresAt": int(time.time() * 1000) + 3_600_000,
        },
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: None,
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    entry = pool.select()

    assert entry is not None
    assert entry.source == "env:ANTHROPIC_TOKEN"
    assert entry.access_token == "env-override-token"


def test_load_pool_api_key_path_skips_oauth_autodiscovery(tmp_path, monkeypatch):
    """API-key auth path: autodiscovered OAuth creds must NOT be seeded.

    When the user picks "Anthropic API key" at `hermes setup`,
    `save_anthropic_api_key()` writes ANTHROPIC_API_KEY and zeros
    ANTHROPIC_TOKEN.  That env-var pattern is the explicit signal that the
    user opted into the API-key path and explicitly OUT of the OAuth
    masquerade (Claude Code identity injection + `mcp_` tool-name rewrite
    + claude-cli user-agent).  Autodiscovered Claude Code / Hermes PKCE
    tokens from other tools' credential files must NOT be silently mixed
    into the anthropic pool — otherwise rotation on a 401/429 could flip
    the session onto OAuth credentials mid-conversation.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("ANTHROPIC_API_KEY", "sk-ant-api03-explicit-user-key")
    monkeypatch.delenv("ANTHROPIC_TOKEN", raising=False)
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})
    monkeypatch.setattr("hermes_cli.auth.is_provider_explicitly_configured", lambda pid: True)

    pkce_called = {"n": 0}
    cc_called = {"n": 0}

    def _fake_pkce():
        pkce_called["n"] += 1
        return {
            "accessToken": "sk-ant-oat01-pkce-token",
            "refreshToken": "pkce-refresh",
            "expiresAt": int(time.time() * 1000) + 3_600_000,
        }

    def _fake_cc():
        cc_called["n"] += 1
        return {
            "accessToken": "sk-ant-oat01-claude-code-token",
            "refreshToken": "cc-refresh",
            "expiresAt": int(time.time() * 1000) + 3_600_000,
        }

    monkeypatch.setattr("agent.anthropic_adapter.read_hermes_oauth_credentials", _fake_pkce)
    monkeypatch.setattr("agent.anthropic_adapter.read_claude_code_credentials", _fake_cc)

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    sources = {entry.source for entry in pool.entries()}

    # Only the explicit API-key entry should be in the pool.
    assert sources == {"env:ANTHROPIC_API_KEY"}, f"got {sources}"
    # And we should not have even called the autodiscovery readers.
    assert pkce_called["n"] == 0
    assert cc_called["n"] == 0


def test_load_pool_api_key_path_prunes_stale_oauth_entries(tmp_path, monkeypatch):
    """Switching OAuth -> API key must prune stale OAuth entries from auth.json.

    Without this, a user who logs into OAuth (seeding `claude_code` or
    `hermes_pkce` into auth.json) and later switches to the API key at
    `hermes setup` would still have those OAuth entries dormant on disk.
    Pool rotation on a transient 401 could revive them and flip the
    session onto the OAuth masquerade.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("ANTHROPIC_API_KEY", "sk-ant-api03-explicit-user-key")
    monkeypatch.delenv("ANTHROPIC_TOKEN", raising=False)
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)

    # Plant a stale claude_code entry in the on-disk pool (as if a previous
    # OAuth session seeded it).
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "providers": {},
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "stale1",
                        "source": "claude_code",
                        "auth_type": "oauth",
                        "access_token": "sk-ant-oat01-stale-claude-code",
                        "refresh_token": "stale-refresh",
                        "expires_at_ms": int(time.time() * 1000) + 3_600_000,
                        "priority": 0,
                        "label": "stale-claude-code",
                        "request_count": 0,
                    },
                ],
            },
        },
    )
    monkeypatch.setattr("hermes_cli.auth.is_provider_explicitly_configured", lambda pid: True)
    monkeypatch.setattr("agent.anthropic_adapter.read_hermes_oauth_credentials", lambda: None)
    monkeypatch.setattr("agent.anthropic_adapter.read_claude_code_credentials", lambda: None)

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    sources = {entry.source for entry in pool.entries()}

    # Stale claude_code entry must be gone, API key must be present.
    assert "claude_code" not in sources
    assert "env:ANTHROPIC_API_KEY" in sources


def test_load_pool_oauth_path_still_autodiscovers(tmp_path, monkeypatch):
    """OAuth path: ANTHROPIC_TOKEN set, autodiscovery still fires.

    Regression guard: the API-key gate must not affect users who chose the
    OAuth path at `hermes setup`.  When ANTHROPIC_TOKEN is set (and
    ANTHROPIC_API_KEY is empty), autodiscovered Claude Code creds should
    still be seeded into the pool as before.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
    monkeypatch.setenv("ANTHROPIC_TOKEN", "sk-ant-oat01-explicit-oauth-token")
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})
    monkeypatch.setattr("hermes_cli.auth.is_provider_explicitly_configured", lambda pid: True)

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: None,
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {
            "accessToken": "sk-ant-oat01-autodiscovered-cc",
            "refreshToken": "cc-refresh",
            "expiresAt": int(time.time() * 1000) + 3_600_000,
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    sources = {entry.source for entry in pool.entries()}

    # Both env OAuth token and autodiscovered Claude Code creds should be there.
    assert "env:ANTHROPIC_TOKEN" in sources
    assert "claude_code" in sources


def test_least_used_strategy_selects_lowest_count(tmp_path, monkeypatch):
    """least_used strategy should select the credential with the lowest request_count."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setattr(
        "agent.credential_pool.get_pool_strategy",
        lambda _provider: "least_used",
    )
    monkeypatch.setattr(
        "agent.credential_pool._seed_from_singletons",
        lambda provider, entries: (False, set()),
    )
    monkeypatch.setattr(
        "agent.credential_pool._seed_from_env",
        lambda provider, entries: (False, set()),
    )
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "key-a",
                        "label": "heavy",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-or-heavy",
                        "request_count": 100,
                    },
                    {
                        "id": "key-b",
                        "label": "light",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-or-light",
                        "request_count": 10,
                    },
                    {
                        "id": "key-c",
                        "label": "medium",
                        "auth_type": "api_key",
                        "priority": 2,
                        "source": "manual",
                        "access_token": "sk-or-medium",
                        "request_count": 50,
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()
    assert entry is not None
    assert entry.id == "key-b"
    assert entry.access_token == "sk-or-light"


def test_thread_safety_concurrent_select(tmp_path, monkeypatch):
    """Concurrent select() calls should not corrupt pool state."""
    import threading as _threading

    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setattr(
        "agent.credential_pool.get_pool_strategy",
        lambda _provider: "round_robin",
    )
    monkeypatch.setattr(
        "agent.credential_pool._seed_from_singletons",
        lambda provider, entries: (False, set()),
    )
    monkeypatch.setattr(
        "agent.credential_pool._seed_from_env",
        lambda provider, entries: (False, set()),
    )
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": f"key-{i}",
                        "label": f"key-{i}",
                        "auth_type": "api_key",
                        "priority": i,
                        "source": "manual",
                        "access_token": f"sk-or-{i}",
                    }
                    for i in range(5)
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    results = []
    errors = []

    def worker():
        try:
            for _ in range(20):
                entry = pool.select()
                if entry:
                    results.append(entry.id)
        except Exception as exc:
            errors.append(exc)

    threads = [_threading.Thread(target=worker) for _ in range(4)]
    for t in threads:
        t.start()
    for t in threads:
        t.join()

    assert not errors, f"Thread errors: {errors}"
    assert len(results) == 80  # 4 threads * 20 selects


def test_custom_endpoint_pool_keyed_by_name(tmp_path, monkeypatch):
    """Verify load_pool('custom:together.ai') works and returns entries from auth.json."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # Disable seeding so we only test stored entries
    monkeypatch.setattr(
        "agent.credential_pool._seed_custom_pool",
        lambda pool_key, entries: (False, set()),
    )
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "custom:together.ai": [
                    {
                        "id": "cred-1",
                        "label": "together-key",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-together-xxx",
                        "base_url": "https://api.together.ai/v1",
                    },
                    {
                        "id": "cred-2",
                        "label": "together-key-2",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-together-yyy",
                        "base_url": "https://api.together.ai/v1",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("custom:together.ai")
    assert pool.has_credentials()
    entries = pool.entries()
    assert len(entries) == 2
    assert entries[0].access_token == "sk-together-xxx"
    assert entries[1].access_token == "sk-together-yyy"

    # Select should return the first entry (fill_first default)
    entry = pool.select()
    assert entry is not None
    assert entry.id == "cred-1"


def test_custom_endpoint_pool_seeds_from_config(tmp_path, monkeypatch):
    """Verify seeding from custom_providers api_key in config.yaml."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1})

    # Write config.yaml with a custom_providers entry
    config_path = tmp_path / "hermes" / "config.yaml"
    import yaml
    config_path.write_text(yaml.dump({
        "custom_providers": [
            {
                "name": "Together.ai",
                "base_url": "https://api.together.ai/v1",
                "api_key": "sk-config-seeded",
            }
        ]
    }))

    from agent.credential_pool import load_pool

    pool = load_pool("custom:together.ai")
    assert pool.has_credentials()
    entries = pool.entries()
    assert len(entries) == 1
    assert entries[0].access_token == "sk-config-seeded"
    assert entries[0].source == "config:Together.ai"


def test_custom_endpoint_pool_seeds_from_model_config(tmp_path, monkeypatch):
    """Verify seeding from model.api_key when model.provider=='custom' and base_url matches."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1})

    import yaml
    config_path = tmp_path / "hermes" / "config.yaml"
    config_path.write_text(yaml.dump({
        "custom_providers": [
            {
                "name": "Together.ai",
                "base_url": "https://api.together.ai/v1",
            }
        ],
        "model": {
            "provider": "custom",
            "base_url": "https://api.together.ai/v1",
            "api_key": "sk-model-key",
        },
    }))

    from agent.credential_pool import load_pool

    pool = load_pool("custom:together.ai")
    assert pool.has_credentials()
    entries = pool.entries()
    # Should have the model_config entry
    model_entries = [e for e in entries if e.source == "model_config"]
    assert len(model_entries) == 1
    assert model_entries[0].access_token == "sk-model-key"


def test_custom_pool_does_not_break_existing_providers(tmp_path, monkeypatch):
    """Existing registry providers work exactly as before with custom pool support."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-test")
    _write_auth_store(tmp_path, {"version": 1, "providers": {}})

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    entry = pool.select()
    assert entry is not None
    assert entry.source == "env:OPENROUTER_API_KEY"
    assert entry.access_token == "sk-or-test"


def test_get_custom_provider_pool_key(tmp_path, monkeypatch):
    """get_custom_provider_pool_key maps base_url to custom:<name> pool key."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    (tmp_path / "hermes").mkdir(parents=True, exist_ok=True)
    import yaml
    config_path = tmp_path / "hermes" / "config.yaml"
    config_path.write_text(yaml.dump({
        "custom_providers": [
            {
                "name": "Together.ai",
                "base_url": "https://api.together.ai/v1",
                "api_key": "sk-xxx",
            },
            {
                "name": "My Local Server",
                "base_url": "http://localhost:8080/v1",
            },
        ]
    }))

    from agent.credential_pool import get_custom_provider_pool_key

    assert get_custom_provider_pool_key("https://api.together.ai/v1") == "custom:together.ai"
    assert get_custom_provider_pool_key("https://api.together.ai/v1/") == "custom:together.ai"
    assert get_custom_provider_pool_key("http://localhost:8080/v1") == "custom:my-local-server"
    assert get_custom_provider_pool_key("https://unknown.example.com/v1") is None
    assert get_custom_provider_pool_key("") is None


def test_get_custom_provider_pool_key_prefers_name_over_base_url(tmp_path, monkeypatch):
    """When two custom providers share the same base_url, provider_name resolves to the correct one."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    (tmp_path / "hermes").mkdir(parents=True, exist_ok=True)
    import yaml
    config_path = tmp_path / "hermes" / "config.yaml"
    config_path.write_text(yaml.dump({
        "custom_providers": [
            {
                "name": "provider-a",
                "base_url": "http://gateway:8080/v1",
                "api_key": "sk-aaa",
            },
            {
                "name": "provider-b",
                "base_url": "http://gateway:8080/v1",
                "api_key": "sk-bbb",
            },
        ]
    }))

    from agent.credential_pool import get_custom_provider_pool_key

    # Without provider_name, first match wins (backward compatible)
    assert get_custom_provider_pool_key("http://gateway:8080/v1") == "custom:provider-a"

    # With provider_name, exact name match wins regardless of order
    assert get_custom_provider_pool_key("http://gateway:8080/v1", provider_name="provider-b") == "custom:provider-b"
    assert get_custom_provider_pool_key("http://gateway:8080/v1", provider_name="provider-a") == "custom:provider-a"

    # Name match with non-matching base_url still works via fallback
    assert get_custom_provider_pool_key("http://gateway:8080/v1", provider_name="nonexistent") == "custom:provider-a"

    # Empty provider_name is same as None (backward compatible)
    assert get_custom_provider_pool_key("http://gateway:8080/v1", provider_name="") == "custom:provider-a"


def test_list_custom_pool_providers(tmp_path, monkeypatch):
    """list_custom_pool_providers returns custom: pool keys from auth.json."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "a1",
                        "label": "test",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    }
                ],
                "custom:together.ai": [
                    {
                        "id": "c1",
                        "label": "together",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    }
                ],
                "custom:fireworks": [
                    {
                        "id": "c2",
                        "label": "fireworks",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    }
                ],
                "custom:empty": [],
            },
        },
    )

    from agent.credential_pool import list_custom_pool_providers

    result = list_custom_pool_providers()
    assert result == ["custom:fireworks", "custom:together.ai"]
    # "custom:empty" not included because it's empty



def test_acquire_lease_prefers_unleased_entry(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    },
                    {
                        "id": "cred-2",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "***",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    first = pool.acquire_lease()
    second = pool.acquire_lease()

    assert first == "cred-1"
    assert second == "cred-2"
    assert pool._active_leases.get("cred-1", 0) == 1
    assert pool._active_leases.get("cred-2", 0) == 1



def test_release_lease_decrements_counter(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "openrouter": [
                    {
                        "id": "cred-1",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "***",
                    }
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("openrouter")
    leased = pool.acquire_lease()
    assert leased == "cred-1"
    assert pool._active_leases.get("cred-1", 0) == 1

    pool.release_lease("cred-1")
    assert pool._active_leases.get("cred-1", 0) == 0


def test_load_pool_does_not_seed_claude_code_when_anthropic_not_configured(tmp_path, monkeypatch):
    """Claude Code credentials must not be auto-seeded when the user never selected anthropic."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})

    # Claude Code credentials exist on disk
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": "sk-ant...oken", "refreshToken": "rt", "expiresAt": 9999999999999},
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: None,
    )
    # User configured kimi-coding, NOT anthropic
    monkeypatch.setattr(
        "hermes_cli.auth.is_provider_explicitly_configured",
        lambda pid: pid == "kimi-coding",
    )

    from agent.credential_pool import load_pool
    pool = load_pool("anthropic")

    # Should NOT have seeded the claude_code entry
    assert pool.entries() == []


def test_load_pool_seeds_copilot_via_gh_auth_token(tmp_path, monkeypatch):
    """Copilot credentials from `gh auth token` should be seeded into the pool."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})

    monkeypatch.setattr(
        "hermes_cli.copilot_auth.resolve_copilot_token",
        lambda: ("gho_fake_token_abc123", "gh auth token"),
    )

    from agent.credential_pool import load_pool
    pool = load_pool("copilot")

    assert pool.has_credentials()
    entries = pool.entries()
    assert len(entries) == 1
    assert entries[0].source == "gh_cli"
    assert entries[0].access_token == "gho_fake_token_abc123"
    assert entries[0].base_url == "https://api.githubcopilot.com"


def test_load_pool_does_not_seed_copilot_when_no_token(tmp_path, monkeypatch):
    """Copilot pool should be empty when resolve_copilot_token() returns nothing."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})

    monkeypatch.setattr(
        "hermes_cli.copilot_auth.resolve_copilot_token",
        lambda: ("", ""),
    )

    from agent.credential_pool import load_pool
    pool = load_pool("copilot")

    assert not pool.has_credentials()
    assert pool.entries() == []


def test_load_pool_seeds_qwen_oauth_via_cli_tokens(tmp_path, monkeypatch):
    """Qwen OAuth credentials from ~/.qwen/oauth_creds.json should be seeded into the pool."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})

    monkeypatch.setattr(
        "hermes_cli.auth.resolve_qwen_runtime_credentials",
        lambda **kw: {
            "provider": "qwen-oauth",
            "base_url": "https://portal.qwen.ai/v1",
            "api_key": "qwen_fake_token_xyz",
            "source": "qwen-cli",
            "expires_at_ms": 1900000000000,
            "auth_file": str(tmp_path / ".qwen" / "oauth_creds.json"),
        },
    )

    from agent.credential_pool import load_pool
    pool = load_pool("qwen-oauth")

    assert pool.has_credentials()
    entries = pool.entries()
    assert len(entries) == 1
    assert entries[0].source == "qwen-cli"
    assert entries[0].access_token == "qwen_fake_token_xyz"


def test_load_pool_does_not_seed_qwen_oauth_when_no_token(tmp_path, monkeypatch):
    """Qwen OAuth pool should be empty when no CLI credentials exist."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})

    from hermes_cli.auth import AuthError

    monkeypatch.setattr(
        "hermes_cli.auth.resolve_qwen_runtime_credentials",
        lambda **kw: (_ for _ in ()).throw(
            AuthError("Qwen CLI credentials not found.", provider="qwen-oauth", code="qwen_auth_missing")
        ),
    )

    from agent.credential_pool import load_pool
    pool = load_pool("qwen-oauth")

    assert not pool.has_credentials()
    assert pool.entries() == []


def test_nous_seed_from_singletons_preserves_obtained_at_timestamps(tmp_path, monkeypatch):
    """Regression test for #15099 secondary issue.

    When ``_seed_from_singletons`` materialises a device_code pool entry from
    the ``providers.nous`` singleton, it must carry the mint/refresh
    timestamps (``obtained_at``, ``agent_key_obtained_at``, ``expires_in``,
    etc.) into the pool entry.  Without them, freshness-sensitive consumers
    (self-heal hooks, pool pruning by age) treat just-minted credentials as
    older than they actually are and evict them.
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "providers": {
                "nous": {
                    "access_token": "at_XXXXXXXX",
                    "refresh_token": "rt_YYYYYYYY",
                    "client_id": "hermes-cli",
                    "portal_base_url": "https://portal.nousresearch.com",
                    "inference_base_url": "https://inference.nousresearch.com/v1",
                    "token_type": "Bearer",
                    "scope": "openid profile",
                    "obtained_at": "2026-04-24T10:00:00+00:00",
                    "expires_at": "2026-04-24T11:00:00+00:00",
                    "expires_in": 3600,
                    "agent_key": "sk-nous-AAAA",
                    "agent_key_id": "ak_123",
                    "agent_key_expires_at": "2026-04-25T10:00:00+00:00",
                    "agent_key_expires_in": 86400,
                    "agent_key_reused": False,
                    "agent_key_obtained_at": "2026-04-24T10:00:05+00:00",
                    "tls": {"insecure": False, "ca_bundle": None},
                },
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entries = pool.entries()

    device_entries = [e for e in entries if e.source == "device_code"]
    assert len(device_entries) == 1, f"expected single device_code entry; got {len(device_entries)}"
    e = device_entries[0]

    # Direct dataclass fields — must survive the singleton → pool copy.
    assert e.access_token == "at_XXXXXXXX"
    assert e.refresh_token == "rt_YYYYYYYY"
    assert e.expires_at == "2026-04-24T11:00:00+00:00"
    assert e.agent_key == "sk-nous-AAAA"
    assert e.agent_key_expires_at == "2026-04-25T10:00:00+00:00"

    # Extra fields — this is what regressed.  These must be carried through
    # via ``extra`` dict or __getattr__, NOT silently dropped.
    assert e.obtained_at == "2026-04-24T10:00:00+00:00", (
        f"obtained_at was dropped during seed; got {e.obtained_at!r}. This breaks "
        f"downstream pool-freshness consumers (#15099)."
    )
    assert e.agent_key_obtained_at == "2026-04-24T10:00:05+00:00"
    assert e.expires_in == 3600
    assert e.agent_key_id == "ak_123"
    assert e.agent_key_expires_in == 86400
    assert e.agent_key_reused is False


class TestLeastUsedStrategy:
    """Regression: least_used strategy must increment request_count on select."""

    def test_request_count_increments(self):
        """Each select() call should increment the chosen entry's request_count."""
        from unittest.mock import patch as _patch
        from agent.credential_pool import CredentialPool, PooledCredential, STRATEGY_LEAST_USED

        entries = [
            PooledCredential(provider="test", id="a", label="a", auth_type="api_key",
                             source="a", access_token="tok-a", priority=0, request_count=0),
            PooledCredential(provider="test", id="b", label="b", auth_type="api_key",
                             source="b", access_token="tok-b", priority=1, request_count=0),
        ]
        with _patch("agent.credential_pool.get_pool_strategy", return_value=STRATEGY_LEAST_USED):
            pool = CredentialPool("test", entries)

        # First select should pick entry with lowest count (both 0 → first)
        e1 = pool.select()
        assert e1 is not None
        count_after_first = e1.request_count
        assert count_after_first == 1, f"Expected 1 after first select, got {count_after_first}"

        # Second select should pick the OTHER entry (now has lower count)
        e2 = pool.select()
        assert e2 is not None
        assert e2.id != e1.id or e2.request_count == 2, (
            "least_used should alternate or increment"
        )


# ── PR #10160 salvage: Nous OAuth cross-process sync tests ─────────────────

def test_sync_nous_entry_from_auth_store_adopts_newer_tokens(tmp_path, monkeypatch):
    """When auth.json has a newer refresh token, the pool entry should adopt it."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-OLD",
                    "refresh_token": "refresh-OLD",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key-OLD",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                }
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entry = pool.select()
    assert entry is not None
    assert entry.refresh_token == "refresh-OLD"

    # Simulate another process refreshing the token in auth.json
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-NEW",
                    "refresh_token": "refresh-NEW",
                    "expires_at": "2026-03-24T12:30:00+00:00",
                    "agent_key": "agent-key-NEW",
                    "agent_key_expires_at": "2026-03-24T14:00:00+00:00",
                }
            },
        },
    )

    synced = pool._sync_nous_entry_from_auth_store(entry)
    assert synced is not entry
    assert synced.access_token == "access-NEW"
    assert synced.refresh_token == "refresh-NEW"
    assert synced.agent_key == "agent-key-NEW"
    assert synced.agent_key_expires_at == "2026-03-24T14:00:00+00:00"

def test_sync_nous_entry_noop_when_tokens_match(tmp_path, monkeypatch):
    """When auth.json has the same refresh token, sync should be a no-op."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-token",
                    "refresh_token": "refresh-token",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                }
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("nous")
    entry = pool.select()
    assert entry is not None

    synced = pool._sync_nous_entry_from_auth_store(entry)
    assert synced is entry

def test_nous_exhausted_entry_recovers_via_auth_store_sync(tmp_path, monkeypatch):
    """An exhausted Nous entry should recover when auth.json has newer tokens."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    from agent.credential_pool import load_pool, STATUS_EXHAUSTED
    from dataclasses import replace as dc_replace

    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-OLD",
                    "refresh_token": "refresh-OLD",
                    "expires_at": "2026-03-24T12:00:00+00:00",
                    "agent_key": "agent-key",
                    "agent_key_expires_at": "2026-03-24T13:30:00+00:00",
                }
            },
        },
    )

    pool = load_pool("nous")
    entry = pool.select()
    assert entry is not None

    # Mark entry as exhausted (simulating a failed refresh)
    exhausted = dc_replace(
        entry,
        last_status=STATUS_EXHAUSTED,
        last_status_at=time.time(),
        last_error_code=401,
    )
    pool._replace_entry(entry, exhausted)
    pool._persist()

    # Simulate another process having successfully refreshed
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "active_provider": "nous",
            "providers": {
                "nous": {
                    "portal_base_url": "https://portal.example.com",
                    "inference_base_url": "https://inference.example.com/v1",
                    "client_id": "hermes-cli",
                    "token_type": "Bearer",
                    "scope": "inference:invoke",
                    "access_token": "access-FRESH",
                    "refresh_token": "refresh-FRESH",
                    "expires_at": "2026-03-24T12:30:00+00:00",
                    "agent_key": "agent-key-FRESH",
                    "agent_key_expires_at": "2026-03-24T14:00:00+00:00",
                }
            },
        },
    )

    available = pool._available_entries(clear_expired=True)
    assert len(available) == 1
    assert available[0].refresh_token == "refresh-FRESH"
    assert available[0].last_status is None


# ── OpenAI Codex OAuth cross-process sync tests ────────────────────────────

def _codex_auth_store(access: str, refresh: str) -> dict:
    return {
        "version": 1,
        "active_provider": "openai-codex",
        "providers": {
            "openai-codex": {
                "auth_mode": "chatgpt",
                "tokens": {
                    "access_token": access,
                    "refresh_token": refresh,
                    "id_token": "id-" + access,
                },
                "last_refresh": "2026-04-28T00:00:00Z",
            }
        },
    }


def test_sync_codex_entry_from_auth_store_adopts_newer_tokens(tmp_path, monkeypatch):
    """When auth.json has newer Codex tokens, the pool entry should adopt them."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, _codex_auth_store("access-OLD", "refresh-OLD"))

    from agent.credential_pool import load_pool

    pool = load_pool("openai-codex")
    entry = pool.select()
    assert entry is not None
    assert entry.access_token == "access-OLD"
    assert entry.refresh_token == "refresh-OLD"

    # Simulate `hermes auth openai-codex` replacing the token pair on disk.
    _write_auth_store(tmp_path, _codex_auth_store("access-NEW", "refresh-NEW"))

    synced = pool._sync_codex_entry_from_auth_store(entry)
    assert synced is not entry
    assert synced.access_token == "access-NEW"
    assert synced.refresh_token == "refresh-NEW"
    assert synced.last_status is None
    assert synced.last_error_code is None
    assert synced.last_error_reset_at is None


def test_sync_codex_entry_noop_when_tokens_match(tmp_path, monkeypatch):
    """When auth.json has the same tokens, sync should be a no-op."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(tmp_path, _codex_auth_store("access-same", "refresh-same"))

    from agent.credential_pool import load_pool

    pool = load_pool("openai-codex")
    entry = pool.select()
    assert entry is not None

    synced = pool._sync_codex_entry_from_auth_store(entry)
    assert synced is entry


def test_codex_exhausted_entry_recovers_via_auth_store_sync(tmp_path, monkeypatch):
    """An exhausted Codex entry should recover when auth.json has newer tokens.

    Reproduces the Discord report (p1aceho1der, Apr 2026): after a Codex
    rate-limit reset the user ran `hermes model` to reauth, but the pool
    entry stayed marked EXHAUSTED with last_error_reset_at many hours in
    the future — so `_available_entries` kept returning empty and every
    request failed with "no available entries (all exhausted or empty)".
    """
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    from agent.credential_pool import load_pool, STATUS_EXHAUSTED
    from dataclasses import replace as dc_replace

    _write_auth_store(tmp_path, _codex_auth_store("access-OLD", "refresh-OLD"))

    pool = load_pool("openai-codex")
    entry = pool.select()
    assert entry is not None

    # Mark entry as exhausted with last_error_reset_at one hour in the
    # future (Codex 429 weekly-window pattern).
    now = time.time()
    exhausted = dc_replace(
        entry,
        last_status=STATUS_EXHAUSTED,
        last_status_at=now,
        last_error_code=429,
        last_error_reset_at=now + 3600,
    )
    pool._replace_entry(entry, exhausted)
    pool._persist()

    # Sanity: before the reauth, _available_entries refuses to return
    # this entry because last_error_reset_at is in the future.
    # (clear_expired would only clear it AFTER exhausted_until elapsed.)
    available_before = pool._available_entries(clear_expired=True, refresh=False)
    assert available_before == []

    # Simulate `hermes model` / `hermes auth` refreshing the tokens.
    _write_auth_store(tmp_path, _codex_auth_store("access-FRESH", "refresh-FRESH"))

    available = pool._available_entries(clear_expired=True, refresh=False)
    assert len(available) == 1
    assert available[0].access_token == "access-FRESH"
    assert available[0].refresh_token == "refresh-FRESH"
    assert available[0].last_status is None
    assert available[0].last_error_reset_at is None


def test_codex_exhausted_entry_stays_stuck_without_auth_store_update(tmp_path, monkeypatch):
    """Regression guard: if auth.json tokens haven't changed, the exhausted
    entry must stay stuck behind its reset window — sync must not spuriously
    clear status just because the entry is STATUS_EXHAUSTED."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    from agent.credential_pool import load_pool, STATUS_EXHAUSTED
    from dataclasses import replace as dc_replace

    _write_auth_store(tmp_path, _codex_auth_store("access-same", "refresh-same"))

    pool = load_pool("openai-codex")
    entry = pool.select()
    assert entry is not None

    now = time.time()
    exhausted = dc_replace(
        entry,
        last_status=STATUS_EXHAUSTED,
        last_status_at=now,
        last_error_code=429,
        last_error_reset_at=now + 3600,
    )
    pool._replace_entry(entry, exhausted)
    pool._persist()

    # auth.json unchanged → sync returns same entry → exhausted_until check
    # still skips it.
    available = pool._available_entries(clear_expired=True, refresh=False)
    assert available == []


# ---------------------------------------------------------------------------
# xAI OAuth terminal error quarantine
# ---------------------------------------------------------------------------


def _xai_auth_store(access_token: str, refresh_token: str) -> dict:
    return {
        "version": 1,
        "active_provider": "xai-oauth",
        "providers": {
            "xai-oauth": {
                "tokens": {
                    "access_token": access_token,
                    "refresh_token": refresh_token,
                },
                "discovery": {"token_endpoint": "https://accounts.x.ai/oauth2/token"},
                "redirect_uri": "http://localhost:12345/callback",
            }
        },
    }


def test_is_terminal_xai_oauth_refresh_error():
    from hermes_cli.auth import AuthError, _is_terminal_xai_oauth_refresh_error

    assert _is_terminal_xai_oauth_refresh_error(
        AuthError("Refresh failed", provider="xai-oauth", code="xai_refresh_failed", relogin_required=True)
    )
    assert _is_terminal_xai_oauth_refresh_error(
        AuthError("No token", provider="xai-oauth", code="xai_auth_missing_refresh_token", relogin_required=True)
    )
    # transient 429/5xx: relogin_required=False → not terminal
    assert not _is_terminal_xai_oauth_refresh_error(
        AuthError("Rate limit", provider="xai-oauth", code="xai_refresh_failed", relogin_required=False)
    )
    # Nous error does not trigger xAI check
    assert not _is_terminal_xai_oauth_refresh_error(
        AuthError("Revoked", provider="nous", code="invalid_grant", relogin_required=True)
    )
    # Generic exception
    assert not _is_terminal_xai_oauth_refresh_error(ValueError("oops"))


def test_xai_oauth_terminal_refresh_clears_auth_json_and_removes_pool_entries(
    tmp_path, monkeypatch
):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("XAI_API_KEY", raising=False)
    monkeypatch.delenv("XAI_OAUTH_ACCESS_TOKEN", raising=False)

    _write_auth_store(tmp_path, _xai_auth_store("old-access-token", "old-refresh-token"))

    from agent.credential_pool import PooledCredential, load_pool
    import hermes_cli.auth as auth_mod
    from hermes_cli.auth import AuthError

    pool = load_pool("xai-oauth")
    selected = pool.select()
    assert selected is not None
    assert selected.source == "device_code"

    # Add a manual API-key entry that must survive the quarantine.
    pool.add_entry(PooledCredential.from_dict("xai-oauth", {
        "id": "manual-key",
        "source": "manual",
        "auth_type": "api_key",
        "access_token": "manual-xai-key",
    }))

    refresh_calls = {"count": 0}

    def _terminal_refresh_failure(*_args, **_kwargs):
        refresh_calls["count"] += 1
        raise AuthError(
            "Refresh session has been revoked",
            provider="xai-oauth",
            code="xai_refresh_failed",
            relogin_required=True,
        )

    monkeypatch.setattr(auth_mod, "refresh_xai_oauth_pure", _terminal_refresh_failure)

    assert pool.try_refresh_current() is None

    # Only the manual entry survives.
    assert [entry.id for entry in pool.entries()] == ["manual-key"]

    # Auth.json tokens must be cleared.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    xai_state = auth_payload["providers"]["xai-oauth"]
    tokens = xai_state.get("tokens", {})
    assert not tokens.get("access_token")
    assert not tokens.get("refresh_token")
    assert xai_state["last_auth_error"]["code"] == "xai_refresh_failed"
    assert xai_state["last_auth_error"]["relogin_required"] is True

    # Persisted pool must also have only the manual entry.
    assert [entry["id"] for entry in auth_payload["credential_pool"]["xai-oauth"]] == ["manual-key"]

    # A second try_refresh_current must not call refresh_xai_oauth_pure again
    # (pool is now empty of device-code entries and current is None).
    assert pool.try_refresh_current() is None
    assert refresh_calls["count"] == 1


def test_xai_oauth_nonterminal_refresh_does_not_quarantine(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("XAI_API_KEY", raising=False)
    monkeypatch.delenv("XAI_OAUTH_ACCESS_TOKEN", raising=False)

    _write_auth_store(tmp_path, _xai_auth_store("old-access-token", "old-refresh-token"))

    from agent.credential_pool import load_pool
    import hermes_cli.auth as auth_mod
    from hermes_cli.auth import AuthError

    pool = load_pool("xai-oauth")
    assert pool.select() is not None

    def _transient_failure(*_args, **_kwargs):
        raise AuthError(
            "Rate limited",
            provider="xai-oauth",
            code="xai_refresh_failed",
            relogin_required=False,
        )

    monkeypatch.setattr(auth_mod, "refresh_xai_oauth_pure", _transient_failure)

    pool.try_refresh_current()

    # Tokens must NOT be cleared from auth.json.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    tokens = auth_payload["providers"]["xai-oauth"].get("tokens", {})
    assert tokens.get("access_token") == "old-access-token"
    assert tokens.get("refresh_token") == "old-refresh-token"


def test_xai_oauth_concurrent_pool_instances_refresh_single_use_token_once(
    tmp_path, monkeypatch
):
    import threading
    import time

    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("XAI_API_KEY", raising=False)
    monkeypatch.delenv("XAI_OAUTH_ACCESS_TOKEN", raising=False)

    _write_auth_store(tmp_path, {
        "version": 1,
        "providers": {},
        "credential_pool": {
            "xai-oauth": [{
                "id": "manual-xai",
                "label": "manual-xai",
                "auth_type": "oauth",
                "priority": 0,
                "source": "manual:xai_pkce",
                "access_token": "old-access-token",
                "refresh_token": "one-time-refresh-token",
                "base_url": "https://api.x.ai/v1",
            }],
        },
    })

    from agent.credential_pool import load_pool
    import hermes_cli.auth as auth_mod

    pools = [load_pool("xai-oauth"), load_pool("xai-oauth")]
    start = threading.Barrier(2)
    refresh_calls: list[tuple[str, str]] = []

    def _refresh(access_token, refresh_token, **_kwargs):
        refresh_calls.append((access_token, refresh_token))
        time.sleep(0.1)
        return {
            "access_token": "fresh-access-token",
            "refresh_token": "fresh-refresh-token",
            "last_refresh": "2026-07-12T00:00:00+00:00",
        }

    monkeypatch.setattr(auth_mod, "refresh_xai_oauth_pure", _refresh)
    results = []
    errors = []

    def _worker(pool):
        try:
            start.wait()
            results.append(pool.try_refresh_matching("old-access-token"))
        except Exception as exc:
            errors.append(exc)

    threads = [threading.Thread(target=_worker, args=(pool,)) for pool in pools]
    for thread in threads:
        thread.start()
    for thread in threads:
        thread.join()

    assert not errors
    assert refresh_calls == [("old-access-token", "one-time-refresh-token")]
    assert sorted(entry.access_token for entry in results) == [
        "fresh-access-token",
        "fresh-access-token",
    ]
    persisted = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    stored = persisted["credential_pool"]["xai-oauth"][0]
    assert stored["access_token"] == "fresh-access-token"
    assert stored["refresh_token"] == "fresh-refresh-token"


# ---------------------------------------------------------------------------
# Codex OAuth terminal error quarantine
# ---------------------------------------------------------------------------


def _codex_auth_store(access_token: str, refresh_token: str) -> dict:
    return {
        "version": 1,
        "active_provider": "openai-codex",
        "providers": {
            "openai-codex": {
                "tokens": {
                    "access_token": access_token,
                    "refresh_token": refresh_token,
                },
            }
        },
    }


def test_is_terminal_codex_oauth_refresh_error():
    from hermes_cli.auth import AuthError, _is_terminal_codex_oauth_refresh_error

    assert _is_terminal_codex_oauth_refresh_error(
        AuthError("Refresh failed", provider="openai-codex", code="codex_refresh_failed", relogin_required=True)
    )
    assert _is_terminal_codex_oauth_refresh_error(
        AuthError("No token", provider="openai-codex", code="codex_auth_missing_refresh_token", relogin_required=True)
    )
    assert _is_terminal_codex_oauth_refresh_error(
        AuthError("Revoked", provider="openai-codex", code="invalid_grant", relogin_required=True)
    )
    assert _is_terminal_codex_oauth_refresh_error(
        AuthError("Reused", provider="openai-codex", code="refresh_token_reused", relogin_required=True)
    )
    # transient 429/5xx: relogin_required=False -> not terminal
    assert not _is_terminal_codex_oauth_refresh_error(
        AuthError("Rate limit", provider="openai-codex", code="codex_refresh_failed", relogin_required=False)
    )
    # xAI error does not trigger Codex check
    assert not _is_terminal_codex_oauth_refresh_error(
        AuthError("Revoked", provider="xai-oauth", code="xai_refresh_failed", relogin_required=True)
    )
    # Generic exception
    assert not _is_terminal_codex_oauth_refresh_error(ValueError("oops"))


def test_codex_oauth_terminal_refresh_clears_auth_json_and_removes_pool_entries(
    tmp_path, monkeypatch
):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("OPENAI_API_KEY", raising=False)
    monkeypatch.delenv("CODEX_OAUTH_ACCESS_TOKEN", raising=False)

    _write_auth_store(tmp_path, _codex_auth_store("old-access-token", "old-refresh-token"))

    from agent.credential_pool import PooledCredential, load_pool
    import hermes_cli.auth as auth_mod
    from hermes_cli.auth import AuthError

    pool = load_pool("openai-codex")
    selected = pool.select()
    assert selected is not None
    assert selected.source == "device_code"

    # Add a manual API-key entry that must survive the quarantine.
    pool.add_entry(PooledCredential.from_dict("openai-codex", {
        "id": "manual-key",
        "source": "manual",
        "auth_type": "api_key",
        "access_token": "manual-codex-key",
    }))

    refresh_calls = {"count": 0}

    def _terminal_refresh_failure(*_args, **_kwargs):
        refresh_calls["count"] += 1
        raise AuthError(
            "Refresh session has been revoked",
            provider="openai-codex",
            code="codex_refresh_failed",
            relogin_required=True,
        )

    monkeypatch.setattr(auth_mod, "refresh_codex_oauth_pure", _terminal_refresh_failure)

    assert pool.try_refresh_current() is None

    # Only the manual entry survives.
    assert [entry.id for entry in pool.entries()] == ["manual-key"]

    # Auth.json tokens must be cleared.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    codex_state = auth_payload["providers"]["openai-codex"]
    tokens = codex_state.get("tokens", {})
    assert not tokens.get("access_token")
    assert not tokens.get("refresh_token")
    assert codex_state["last_auth_error"]["code"] == "codex_refresh_failed"
    assert codex_state["last_auth_error"]["relogin_required"] is True

    # Persisted pool must also have only the manual entry.
    assert [entry["id"] for entry in auth_payload["credential_pool"]["openai-codex"]] == ["manual-key"]

    # A second try_refresh_current must not call refresh_codex_oauth_pure again.
    assert pool.try_refresh_current() is None
    assert refresh_calls["count"] == 1


def test_codex_oauth_nonterminal_refresh_does_not_quarantine(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("OPENAI_API_KEY", raising=False)
    monkeypatch.delenv("CODEX_OAUTH_ACCESS_TOKEN", raising=False)

    _write_auth_store(tmp_path, _codex_auth_store("old-access-token", "old-refresh-token"))

    from agent.credential_pool import load_pool
    import hermes_cli.auth as auth_mod
    from hermes_cli.auth import AuthError

    pool = load_pool("openai-codex")
    assert pool.select() is not None

    def _transient_failure(*_args, **_kwargs):
        raise AuthError(
            "Rate limited",
            provider="openai-codex",
            code="codex_refresh_failed",
            relogin_required=False,
        )

    monkeypatch.setattr(auth_mod, "refresh_codex_oauth_pure", _transient_failure)

    pool.try_refresh_current()

    # Tokens must NOT be cleared from auth.json.
    auth_payload = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    tokens = auth_payload["providers"]["openai-codex"].get("tokens", {})
    assert tokens.get("access_token") == "old-access-token"
    assert tokens.get("refresh_token") == "old-refresh-token"


def test_persist_preserves_concurrent_disk_only_entry(tmp_path, monkeypatch):
    """Regression for #19566: stale rotation writes keep concurrent entries."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # Block external-credential autodiscovery: a real ~/.claude/.credentials.json
    # on a dev machine would seed an extra claude_code entry and break the
    # exact-id assertions below (passes on CI where no such file exists).
    monkeypatch.setattr("agent.anthropic_adapter.read_hermes_oauth_credentials", lambda: None)
    monkeypatch.setattr("agent.anthropic_adapter.read_claude_code_credentials", lambda: None)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-A",
                        "label": "primary",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-A",
                    },
                    {
                        "id": "cred-B",
                        "label": "secondary",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-B",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool
    from hermes_cli.auth import read_credential_pool, write_credential_pool

    pool = load_pool("anthropic")
    assert {entry.id for entry in pool.entries()} == {"cred-A", "cred-B"}

    disk_snapshot = read_credential_pool("anthropic")
    disk_snapshot.append(
        {
            "id": "cred-C",
            "label": "added-concurrently",
            "auth_type": "api_key",
            "priority": 2,
            "source": "manual",
            "access_token": "sk-C",
        }
    )
    write_credential_pool("anthropic", disk_snapshot)

    pool.mark_exhausted_and_rotate(status_code=429)

    final = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    final_ids = [entry["id"] for entry in final["credential_pool"]["anthropic"]]
    assert set(final_ids) == {"cred-A", "cred-B", "cred-C"}
    persisted_a = next(
        entry
        for entry in final["credential_pool"]["anthropic"]
        if entry["id"] == "cred-A"
    )
    assert persisted_a["last_status"] == "exhausted"


def test_remove_index_does_not_resurrect_via_disk_merge(tmp_path, monkeypatch):
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    # Block external-credential autodiscovery (see note in the test above).
    monkeypatch.setattr("agent.anthropic_adapter.read_hermes_oauth_credentials", lambda: None)
    monkeypatch.setattr("agent.anthropic_adapter.read_claude_code_credentials", lambda: None)
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-A",
                        "label": "keep",
                        "auth_type": "api_key",
                        "priority": 0,
                        "source": "manual",
                        "access_token": "sk-A",
                    },
                    {
                        "id": "cred-B",
                        "label": "drop",
                        "auth_type": "api_key",
                        "priority": 1,
                        "source": "manual",
                        "access_token": "sk-B",
                    },
                ]
            },
        },
    )

    from agent.credential_pool import load_pool

    pool = load_pool("anthropic")
    pool.remove_index(2)

    final = json.loads((tmp_path / "hermes" / "auth.json").read_text())
    final_ids = [entry["id"] for entry in final["credential_pool"]["anthropic"]]
    assert final_ids == ["cred-A"]


# ---------------------------------------------------------------------------
# _sync_anthropic_entry_from_credentials_file — parity fix tests
# ---------------------------------------------------------------------------

def _make_anthropic_claude_code_pool(tmp_path, monkeypatch, *, access_token, refresh_token, expires_at_ms=9_999_999_999_000):
    """Helper: load an Anthropic pool seeded with a single claude_code entry."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
    monkeypatch.delenv("ANTHROPIC_TOKEN", raising=False)
    monkeypatch.delenv("CLAUDE_CODE_OAUTH_TOKEN", raising=False)
    _write_auth_store(tmp_path, {"version": 1, "credential_pool": {}})
    monkeypatch.setattr("hermes_cli.auth.is_provider_explicitly_configured", lambda pid: pid == "anthropic")
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_hermes_oauth_credentials",
        lambda: None,
    )
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": access_token, "refreshToken": refresh_token, "expiresAt": expires_at_ms},
    )
    from agent.credential_pool import load_pool
    pool = load_pool("anthropic")
    entry = pool.select()
    assert entry is not None
    assert entry.source == "claude_code"
    return pool, entry


def test_sync_anthropic_entry_access_token_only_changed(tmp_path, monkeypatch):
    """Sync must trigger when access_token rotates but refresh_token stays the same.

    This is the parity-fix case: the old code checked only refresh_token,
    so a silent access_token re-issue left the pool with a stale bearer token.
    """
    pool, entry = _make_anthropic_claude_code_pool(
        tmp_path, monkeypatch,
        access_token="old-access",
        refresh_token="shared-refresh",
    )

    # Credentials file: new access_token, same refresh_token
    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": "new-access", "refreshToken": "shared-refresh", "expiresAt": 9_999_999_999_000},
    )

    synced = pool._sync_anthropic_entry_from_credentials_file(entry)

    assert synced is not entry, "sync must return a new entry object"
    assert synced.access_token == "new-access"
    assert synced.refresh_token == "shared-refresh"


def test_sync_anthropic_entry_refresh_token_changed(tmp_path, monkeypatch):
    """Sync must trigger when refresh_token rotates (single-use rotation path)."""
    pool, entry = _make_anthropic_claude_code_pool(
        tmp_path, monkeypatch,
        access_token="access-v1",
        refresh_token="refresh-v1",
    )

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": "access-v2", "refreshToken": "refresh-v2", "expiresAt": 9_999_999_999_000},
    )

    synced = pool._sync_anthropic_entry_from_credentials_file(entry)

    assert synced is not entry
    assert synced.access_token == "access-v2"
    assert synced.refresh_token == "refresh-v2"


def test_sync_anthropic_entry_tokens_unchanged_no_op(tmp_path, monkeypatch):
    """Sync must be a no-op when credentials file matches the pool entry."""
    pool, entry = _make_anthropic_claude_code_pool(
        tmp_path, monkeypatch,
        access_token="same-access",
        refresh_token="same-refresh",
    )

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": "same-access", "refreshToken": "same-refresh", "expiresAt": 9_999_999_999_000},
    )

    synced = pool._sync_anthropic_entry_from_credentials_file(entry)

    assert synced is entry, "no-op sync must return the original entry object"


def test_sync_anthropic_entry_clears_all_error_fields(tmp_path, monkeypatch):
    """Syncing fresh tokens must clear all six error/status fields on the entry.

    Before the fix, last_error_reason / last_error_message / last_error_reset_at
    were left set, so a previously-exhausted entry could stay stuck even after
    fresh tokens arrived from the credentials file.
    """
    from dataclasses import replace as dc_replace
    from agent.credential_pool import STATUS_EXHAUSTED

    pool, entry = _make_anthropic_claude_code_pool(
        tmp_path, monkeypatch,
        access_token="stale-access",
        refresh_token="stale-refresh",
    )

    now = time.time()
    exhausted = dc_replace(
        entry,
        last_status=STATUS_EXHAUSTED,
        last_status_at=now,
        last_error_code=401,
        last_error_reason="token_expired",
        last_error_message="Access token has expired",
        last_error_reset_at=now + 300,
    )
    pool._replace_entry(entry, exhausted)

    monkeypatch.setattr(
        "agent.anthropic_adapter.read_claude_code_credentials",
        lambda: {"accessToken": "fresh-access", "refreshToken": "fresh-refresh", "expiresAt": 9_999_999_999_000},
    )

    synced = pool._sync_anthropic_entry_from_credentials_file(exhausted)

    assert synced is not exhausted
    assert synced.access_token == "fresh-access"
    assert synced.last_status is None
    assert synced.last_status_at is None
    assert synced.last_error_code is None
    assert synced.last_error_reason is None
    assert synced.last_error_message is None
    assert synced.last_error_reset_at is None


def _load_two_ok_pool(tmp_path, monkeypatch):
    """A pool with two OK anthropic entries, current = cred-1."""
    monkeypatch.setenv("HERMES_HOME", str(tmp_path / "hermes"))
    _write_auth_store(
        tmp_path,
        {
            "version": 1,
            "credential_pool": {
                "anthropic": [
                    {
                        "id": "cred-1", "label": "primary", "auth_type": "api_key",
                        "priority": 0, "source": "manual", "access_token": "***",
                        "last_status": "ok", "last_status_at": None, "last_error_code": None,
                    },
                    {
                        "id": "cred-2", "label": "secondary", "auth_type": "api_key",
                        "priority": 1, "source": "manual", "access_token": "***",
                        "last_status": "ok", "last_status_at": None, "last_error_code": None,
                    },
                ]
            },
        },
    )
    from agent.credential_pool import load_pool

    return load_pool("anthropic")


def _fresh_entry(pool):
    """A copy of the pool's first entry under a new id, for add_entry()."""
    from dataclasses import replace as dc_replace

    return dc_replace(pool.entries()[0], id="cred-new")


class TestCredentialPoolQueryLocking:
    """Public pool-state methods must run under ``self._lock``.

    ``has_available``/``peek``/``current``/``entries`` all touch
    ``self._entries`` (and ``_available_entries`` even prunes + persists),
    and the management surface (``has_credentials``/``reset_statuses``/
    ``remove_index``/``resolve_target``/``add_entry``) reads or rebinds
    ``self._entries`` and persists auth.json, so they must all hold the
    same lock every mutating entry point uses.  A naive fix would deadlock
    because the lock is non-reentrant and ``peek`` calls ``current`` +
    ``_available_entries``; these tests guard both the no-deadlock and the
    actually-locked properties.
    """

    def test_query_methods_do_not_deadlock(self, tmp_path, monkeypatch):
        pool = _load_two_ok_pool(tmp_path, monkeypatch)
        pool.select()  # set a current entry

        # peek() internally calls current() + _available_entries(); if any of
        # these re-acquired the non-reentrant lock we'd hang here forever.
        assert pool.current() is not None
        assert pool.peek() is not None
        assert pool.has_available() is True
        assert pool.has_credentials() is True
        assert pool.resolve_target("cred-1")[1] is not None
        # (env may seed extra singleton entries; just assert ours are present)
        assert {"cred-1", "cred-2"} <= {e.id for e in pool.entries()}
        # try_refresh_matching's no-hint branch resolves the current entry
        # while already holding the lock — must use _current_unlocked(), not
        # current(), or it deadlocks on the non-reentrant lock (found when
        # rebasing this fix over the #69843 salvage which added the method).
        pool.try_refresh_matching()

    @pytest.mark.parametrize(
        "method,get_args",
        [
            ("has_available", lambda pool: ()),
            ("peek", lambda pool: ()),
            ("current", lambda pool: ()),
            ("entries", lambda pool: ()),
            ("has_credentials", lambda pool: ()),
            ("reset_statuses", lambda pool: ()),
            ("resolve_target", lambda pool: ("cred-1",)),
            ("remove_index", lambda pool: (1,)),
            ("add_entry", lambda pool: (_fresh_entry(pool),)),
        ],
    )
    def test_query_method_acquires_lock(self, tmp_path, monkeypatch, method, get_args):
        import threading

        pool = _load_two_ok_pool(tmp_path, monkeypatch)
        pool.select()
        args = get_args(pool)

        inner = pool._lock

        class _InstrumentedLock:
            """Probe that records acquire attempts, so the test can prove the
            worker actually reached ``self._lock`` before asserting that it
            blocks (a plain timed wait passes spuriously if the worker is
            simply never scheduled)."""

            def __init__(self):
                self.attempted = threading.Event()

            def acquire(self, *args, **kwargs):
                self.attempted.set()
                return inner.acquire(*args, **kwargs)

            def release(self):
                inner.release()

            def __enter__(self):
                self.acquire()
                return self

            def __exit__(self, *exc):
                self.release()

        probe = _InstrumentedLock()
        pool._lock = probe

        done = threading.Event()

        def _call():
            getattr(pool, method)(*args)
            done.set()

        # Hold the real lock (without tripping the probe), then fire the query
        # on another thread. If the method acquires self._lock (as it must),
        # it blocks until we release.
        inner.acquire()
        try:
            worker = threading.Thread(target=_call, daemon=True)
            worker.start()
            assert probe.attempted.wait(timeout=2.0), (
                f"{method}() never attempted to acquire self._lock"
            )
            assert not done.wait(timeout=0.5), (
                f"{method}() returned while the pool lock was held — it is not "
                f"blocking on self._lock"
            )
        finally:
            inner.release()

        assert done.wait(timeout=2.0), f"{method}() did not complete after lock release"
