// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package atspi

import "git.stormux.org/storm/cthulhu/internal/platform/xorg"

// ForegroundTitle binds copied title metadata to the foreground ownership epoch.
type ForegroundTitle struct {
	Title xorg.WindowTitle
	Epoch uint64
}

func (adapter *Adapter) ForegroundTitle() ForegroundTitle {
	if title := adapter.foregroundTitle.Load(); title != nil {
		return *title
	}
	return ForegroundTitle{}
}

func (adapter *Adapter) TitleChanges() <-chan struct{} { return adapter.titleChanges }

// Called only by the GLib owner; consumers never issue X11 requests.
func (adapter *Adapter) refreshWindowTitle() {
	state := adapter.Foreground()
	value := ForegroundTitle{Title: adapter.foregroundReader.ReadTitle(state.Client.Window), Epoch: state.Epoch}
	if value == adapter.ForegroundTitle() {
		return
	}
	adapter.foregroundTitle.Store(&value)
	select {
	case adapter.titleChanges <- struct{}{}:
	default:
	}
}