extends SceneTree
## Beweis-Probe (Karte t_bceb0965, WEGWERF — nicht Teil der Suite):
## Mehrfachauswahl mit 3 Objekten — gemeinsames Verschieben via Inspektor
## (relativ: Abstände bleiben), Zahlen vor/nach, EIN Undo stellt ALLE her,
## abschließend ein PNG mit den 3 markierten Objekten nach dem Verschieben.
## Aufruf: xvfb-run -a godot4 --path . --rendering-driver opengl3 \
##           -s res://tests/probe_multi_move.gd   (PROBE_PNG = Ausgabepfad)


func _initialize() -> void:
	_run.call_deferred()


func _pos(obj: Dictionary) -> Array:
	return obj.get("pos", [0.0, 0.0, 0.0])


func _dist(a: Dictionary, b: Dictionary) -> float:
	var pa := _pos(a)
	var pb := _pos(b)
	return Vector2(float(pa[0]), float(pa[2])).distance_to(Vector2(float(pb[0]), float(pb[2])))


func _run() -> void:
	var scene: PackedScene = load("res://core/scenes/main.tscn")
	var main = scene.instantiate()
	root.add_child(main)
	await process_frame
	await process_frame
	DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_WINDOWED)
	DisplayServer.window_set_size(Vector2i(2328, 1310))

	# Drei Objekte im Dreieck (verschiedene X/Z → Abstände sind eindeutig).
	var objs: Array = main.doc["objects"]
	objs.append({"id": "barrel_001", "pos": [8.0, 0.0, 8.0], "scale": 1.5, "rot_y_deg": 30.0})
	objs.append({"id": "box_001", "pos": [14.0, 0.0, 6.0], "scale": 1.0, "rot_y_deg": 0.0})
	objs.append({"id": "wall_001", "pos": [11.0, 0.0, 13.0], "scale": 1.0, "rot_y_deg": 0.0})
	main.call("_after_structure_change")
	main.history.clear()
	main.interaction.call("select_many", [0, 1, 2])
	await process_frame

	var cam = main.get("camera")
	if cam != null:
		cam.call("focus_on", Vector3(11.0, 0.0, 9.5))
		cam.set("distance", 34.0)

	# ---- Zahlen VORHER ----
	var d01_vor := _dist(objs[0], objs[1])
	var d02_vor := _dist(objs[0], objs[2])
	var d12_vor := _dist(objs[1], objs[2])
	print("PROBE_VOR  pos0=%s pos1=%s pos2=%s" % [_pos(objs[0]), _pos(objs[1]), _pos(objs[2])])
	print("PROBE_VOR  Abstaende: 0-1=%.3f 0-2=%.3f 1-2=%.3f" % [d01_vor, d02_vor, d12_vor])

	# ---- Gemeinsames Verschieben: Inspektor pos_x tippen (Anker → 12.0) ----
	var insp = main.get("inspector")
	var w = insp.widget("pos_x")
	w.edit.text = "12.0"
	w.edit.text_submitted.emit("12.0")
	await process_frame

	var d01_nach := _dist(objs[0], objs[1])
	var d02_nach := _dist(objs[0], objs[2])
	var d12_nach := _dist(objs[1], objs[2])
	print("PROBE_NACH pos0=%s pos1=%s pos2=%s" % [_pos(objs[0]), _pos(objs[1]), _pos(objs[2])])
	print("PROBE_NACH Abstaende: 0-1=%.3f 0-2=%.3f 1-2=%.3f" % [d01_nach, d02_nach, d12_nach])
	var ok_abst := absf(d01_nach - d01_vor) < 0.001 \
			and absf(d02_nach - d02_vor) < 0.001 \
			and absf(d12_nach - d12_vor) < 0.001
	print("PROBE_ABSTAENDE_ERHALTEN %s" % ("OK" if ok_abst else "FAIL"))

	# ---- EIN Undo stellt ALLE drei her ----
	main.call("_do_undo")
	await process_frame
	var p0_undo := _pos(objs[0])
	var p1_undo := _pos(objs[1])
	var p2_undo := _pos(objs[2])
	var ok_undo := str(p0_undo) == "8, 0, 8" or (absf(float(p0_undo[0]) - 8.0) < 0.001 \
			and absf(float(p0_undo[2]) - 8.0) < 0.001)
	var ok_undo1 := absf(float(p1_undo[0]) - 14.0) < 0.001 and absf(float(p1_undo[2]) - 6.0) < 0.001
	var ok_undo2 := absf(float(p2_undo[0]) - 11.0) < 0.001 and absf(float(p2_undo[2]) - 13.0) < 0.001
	print("PROBE_UNDO pos0=%s pos1=%s pos2=%s" % [p0_undo, p1_undo, p2_undo])
	print("PROBE_UNDO_ALLE_ZURUECK %s" % ("OK" if (ok_undo and ok_undo1 and ok_undo2) else "FAIL"))

	# ---- Zustand für das Bild wiederherstellen: Redo = dieselbe Verschiebung ----
	main.call("_do_redo")
	await process_frame
	print("PROBE_REDO pos0=%s pos1=%s pos2=%s" % [_pos(objs[0]), _pos(objs[1]), _pos(objs[2])])

	# ---- PNG: drei markierte Objekte nach der gemeinsamen Verschiebung ----
	for i in 6:
		await process_frame
	await RenderingServer.frame_post_draw
	var img := root.get_texture().get_image()
	var out := OS.get_environment("PROBE_PNG")
	if out.is_empty():
		out = "/tmp/probe_multi_move.png"
	img.save_png(out)
	print("PNG_OK ", out)
	quit(0)