//go:build windows

package platform

import (
	_ "embed"
	"runtime"

	"fyne.io/systray"
)

// trayIconICO is the brand mascot as a Windows .ico, embedded in the binary and
// shown in the notification area.
//
//go:embed tray-icon.ico
var trayIconICO []byte

// InstallStatusBar installs the Windows system-tray icon, mirroring the macOS
// menu bar: left-click (primary tap) opens the main window, right-click shows
// the Show / Settings / Quit menu. systray owns a Win32 message loop, so it runs
// on its own OS-locked goroutine; the menu-item click channels are drained in a
// second goroutine. The handler closures already hand work to a goroutine before
// touching the Wails runtime, so invoking them from here is safe.
func InstallStatusBar(m StatusBarMenu, h StatusBarHandler) {
	statusBarHandler = h
	go func() {
		// systray creates a window + GetMessage loop on this thread; the window
		// is thread-affine, so the goroutine must not migrate.
		runtime.LockOSThread()
		systray.Run(func() { trayOnReady(m) }, nil)
	}()
}

func trayOnReady(m StatusBarMenu) {
	systray.SetIcon(trayIconICO)
	systray.SetTitle(m.Title)
	systray.SetTooltip(m.Title)

	// Left-click → open the main window (matches the macOS convention). Right-
	// click falls through to the menu below (Windows default).
	systray.SetOnTapped(func() {
		if statusBarHandler.OnShowWindow != nil {
			statusBarHandler.OnShowWindow()
		}
	})

	show := systray.AddMenuItem(m.Show, "")
	settings := systray.AddMenuItem(m.Settings, "")
	quit := systray.AddMenuItem(m.Quit, "")

	go func() {
		for {
			select {
			case <-show.ClickedCh:
				if statusBarHandler.OnShowWindow != nil {
					statusBarHandler.OnShowWindow()
				}
			case <-settings.ClickedCh:
				if statusBarHandler.OnOpenSettings != nil {
					statusBarHandler.OnOpenSettings()
				}
			case <-quit.ClickedCh:
				if statusBarHandler.OnQuit != nil {
					statusBarHandler.OnQuit()
				}
			}
		}
	}()
}

// SetDockVisible is a no-op on Windows: the app lifecycle already hides/shows the
// window (Wails WindowHide/WindowShow), which removes/adds the taskbar button, so
// there is no separate Dock-style activation policy to toggle.
func SetDockVisible(_ bool) {}