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

package app

import "git.stormux.org/storm/cthulhu/internal/atspi"

type wineWindowTitle struct {
	text       string
	foreground atspi.ForegroundTitle
}

// Wine control output stays in its presenter. Its titles use the same
// event-loop policy as native title changes, through a copied-data mailbox.
func connectWineWindowTitles(owner *wineEventPresenter, live *liveSettings, adapter Adapter) {
	if live == nil {
		return
	}
	live.wineTitles = make(chan wineWindowTitle, 1)
	source, _ := adapter.(windowTitleSource)
	owner.windowTitle = func(text string) {
		update := wineWindowTitle{text: text}
		if source != nil {
			update.foreground = source.ForegroundTitle()
		}
		select {
		case <-live.wineTitles:
		default:
		}
		select {
		case live.wineTitles <- update:
		default:
		}
	}
}

func (titles *windowTitleController) wineChanged(update wineWindowTitle) {
	native := update.foreground.Title
	// A helper may deliver a delayed focus after another program took the
	// foreground. X11 metadata is authoritative when it is available.
	if native.Window != 0 && !equivalentWindowTitles(native.Title, update.text) {
		return
	}
	if titles.foreground != nil {
		current := titles.foreground.Foreground()
		if current.Client.Known && current.Client.Window == 0 {
			return
		}
	}
	changed := titles.lastTitle != ""
	if titles.pending != nil {
		changed = titles.pending.changed
	}
	if native.Window != 0 && (update.foreground.Epoch != titles.lastNative.Epoch ||
		native.Window != titles.lastNative.Title.Window || native.TitleWindow != titles.lastNative.Title.TitleWindow) {
		changed = false
	}
	titles.queue(pendingWindowTitle{text: update.text, native: native,
		window: titles.state.owner.window, epoch: update.foreground.Epoch, changed: changed,
		application: titles.application})
}