package display

import (
	"errors"
	"strings"
	"testing"

	"github.com/BurntSushi/xgb/xproto"
)

func TestX11FullscreenArgsKeepCanvasBelowVideo(t *testing.T) {
	args := x11FullscreenArgs(0x1a2b)

	joined := strings.Join(args, " ")
	if !strings.Contains(joined, "add,fullscreen,below") {
		t.Fatalf("args %v must request fullscreen with below stacking", args)
	}
	if !strings.Contains(joined, "0x00001a2b") {
		t.Fatalf("args %v must reference the kiosk window id", args)
	}
}

func TestX11SessionRedrawsOnlyOnExpose(t *testing.T) {
	if !x11WantsRedraw(xproto.ExposeEvent{}) {
		t.Fatal("expose events must trigger a redraw")
	}
	if x11WantsRedraw(xproto.MapNotifyEvent{}) {
		t.Fatal("map notify events must not trigger a redraw")
	}
}

func TestX11OpenerAppliesFullscreenArgsThroughHook(t *testing.T) {
	var got [][]string
	opener := X11Opener{Fullscreen: func(args []string) error {
		got = append(got, args)
		return errors.New("wmctrl missing")
	}}

	if err := opener.applyFullscreen(x11FullscreenArgs(0x42)); err == nil {
		t.Fatal("hook error must propagate for logging")
	}
	if len(got) != 1 || !strings.Contains(strings.Join(got[0], " "), "add,fullscreen,below") {
		t.Fatalf("hook args %v must request fullscreen with below stacking", got)
	}
}