"""Sliced upstream fixture: the exact api/profiles.py fragments the Atlas
voice patcher grafts into (session-continuity 409 resilience). Mirrors the
pinned Hermes WebUI deployment byte-for-byte for the anchored regions; see
dockerfiles/hermes-webui-atlas-patch.py."""

import logging
import threading

logger = logging.getLogger(__name__)

_root_profile_name_cache = {'default'}
_root_profile_name_cache_lock = threading.Lock()
_root_profile_name_cache_loaded = False


def list_profiles_api():
    """Fixture stand-in for the hermes_cli-backed profile listing."""
    return []


def _is_root_profile(name: str) -> bool:
    """True if *name* resolves to the Hermes Agent root profile (~/.hermes).

    Matches the legacy 'default' alias plus any name where list_profiles_api()
    reports is_default=True. Memoized; call _invalidate_root_profile_cache()
    after mutating profile metadata.
    """
    global _root_profile_name_cache_loaded
    if not name:
        return False
    if name == 'default':
        return True
    with _root_profile_name_cache_lock:
        if _root_profile_name_cache_loaded:
            return name in _root_profile_name_cache
    # Cache miss — populate from list_profiles_api(). Done outside the lock to
    # avoid holding it across a hermes_cli subprocess call.
    try:
        infos = list_profiles_api()
    except Exception:
        logger.debug("Failed to list profiles for root-profile lookup", exc_info=True)
        return False
    with _root_profile_name_cache_lock:
        _root_profile_name_cache.clear()
        _root_profile_name_cache.add('default')
        for p in infos:
            try:
                if p.get('is_default') and p.get('name'):
                    _root_profile_name_cache.add(p['name'])
            except (AttributeError, TypeError):
                continue
        _root_profile_name_cache_loaded = True
        return name in _root_profile_name_cache


def _profiles_match(row_profile, active_profile) -> bool:
    """Return True if a session/project row's profile matches the active profile.

    Treats both the literal alias 'default' and any renamed-root display name
    (per _is_root_profile) as equivalent, so legacy rows tagged 'default'
    still surface when the user has renamed the root profile to e.g. 'kinni',
    and vice versa.

    A row with no profile (`None` or empty string) is treated as belonging to
    the root profile — that's the convention used by the legacy backfill at
    api/models.py::all_sessions, and matches the default seen in
    `static/sessions.js` (`S.activeProfile||'default'`).

    Originally lived in api/routes.py; relocated here so both routes.py and
    out-of-process consumers (mcp_server.py) can import the canonical helper
    instead of duplicating the body. See #1614 for the visibility model.
    """
    row = row_profile or 'default'
    active = active_profile or 'default'
    if row == active:
        return True
    # Cross-alias the renamed root.
    if _is_root_profile(row) and _is_root_profile(active):
        return True
    return False