from django.urls import reverse


def _tab(label: str, href: str, active: bool) -> dict:
    return {
        "label": label,
        "href": href,
        "active": bool(active),
    }


def settings_hierarchy_nav(request):
    match = getattr(request, "resolver_match", None)
    if match is None:
        return {}

    url_name = str(getattr(match, "url_name", "") or "")
    namespace = str(getattr(match, "namespace", "") or "")
    path = str(getattr(request, "path", "") or "")

    notifications_href = reverse("notifications_settings")
    system_href = reverse("system_settings")
    accessibility_href = reverse("accessibility_settings")
    encryption_href = reverse("encryption_settings")
    permissions_href = reverse("permission_settings")
    security_2fa_href = reverse("security_2fa")
    ai_models_href = reverse("ai_models")
    ai_traces_href = reverse("ai_execution_log")
    commands_href = reverse("command_routing")
    tasks_href = reverse("tasks_settings")
    translation_href = reverse("translation_settings")
    availability_href = reverse("availability_settings")

    general_routes = {
        "notifications_settings",
        "notifications_update",
        "system_settings",
        "accessibility_settings",
    }
    security_routes = {
        "security_settings",
        "encryption_settings",
        "permission_settings",
        "security_2fa",
    }
    ai_routes = {
        "ai_settings",
        "ai_models",
        "ais",
        "ai_create",
        "ai_update",
        "ai_delete",
        "ai_execution_log",
    }
    modules_routes = {
        "modules_settings",
        "command_routing",
        "tasks_settings",
        "translation_settings",
        "availability_settings",
    }

    two_factor_security_routes = {
        "profile",
        "setup",
        "backup_tokens",
        "disable",
        "phone_create",
        "phone_delete",
    }

    if url_name in general_routes:
        settings_nav = {
            "title": "General",
            "tabs": [
                _tab("Notifications", notifications_href, path == notifications_href),
                _tab("System", system_href, path == system_href),
                _tab("Accessibility", accessibility_href, path == accessibility_href),
            ],
        }
    elif url_name in security_routes or (
        namespace == "two_factor" and url_name in two_factor_security_routes
    ):
        settings_nav = {
            "title": "Security",
            "tabs": [
                _tab("Encryption", encryption_href, path == encryption_href),
                _tab("Permissions", permissions_href, path == permissions_href),
                _tab(
                    "2FA",
                    security_2fa_href,
                    path == security_2fa_href or namespace == "two_factor",
                ),
            ],
        }
    elif url_name in ai_routes:
        settings_nav = {
            "title": "AI",
            "tabs": [
                _tab("Models", ai_models_href, path == ai_models_href),
                _tab("Traces", ai_traces_href, path == ai_traces_href),
            ],
        }
    elif url_name in modules_routes:
        settings_nav = {
            "title": "Modules",
            "tabs": [
                _tab("Commands", commands_href, path == commands_href),
                _tab("Tasks", tasks_href, path == tasks_href),
                _tab("Translation", translation_href, path == translation_href),
                _tab("Availability", availability_href, path == availability_href),
            ],
        }
    else:
        settings_nav = None

    if not settings_nav:
        return {}
    return {"settings_nav": settings_nav}