extends SceneTree
## WEGWERF-Probe: Prüft, ob ImageTexture.get_image() im Headless-Modus
## funktioniert (fuer Inhaltsvergleich GLTF-Textur vs. Cache-Textur)
## und ob die GLTF-Textur wirklich identischen Inhalt hat wie die Datei.

const PFAD := "/opt/data/scopedvr/work/sync_c8748efc/scopedvr-client/assets/objekte/military_desert/walls/wall_001.glb"
const TEX := "/opt/data/scopedvr/work/sync_c8748efc/scopedvr-client/assets/objekte/military_desert/textures/desert_multicam_1.png"


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


func _run() -> void:
	var gltf_mod := load("res://src/viewport/glb_mesh_store.gd")
	var res = gltf_mod.call("_glb_mesh", PFAD)
	if res == null:
		print("FEHLER: _glb_mesh null")
		quit(1)
		return
	var mesh: Mesh = res
	for si in mesh.get_surface_count():
		var mat = mesh.surface_get_material(si)
		if mat is BaseMaterial3D:
			var tex: Texture2D = (mat as BaseMaterial3D).albedo_texture
			print("surface %d: tex=%s iid=%d" % [si, tex.get_class(), tex.get_instance_id()])
			if tex is ImageTexture:
				var img: Image = (tex as ImageTexture).get_image()
				if img == null:
					print("  get_image() -> NULL (Headless kann nicht lesen)")
				else:
					print("  get_image() -> %dx%d format=%d" % [img.get_width(), img.get_height(), img.get_format()])
					var p: Color = img.get_pixel(0, 0)
					print("  pixel00=%s" % str(p))
					var p2: Color = img.get_pixel(1023, 1023)
					print("  pixel1023_1023=%s" % str(p2))
	# Unsere Version direkt von der Platte zum Vergleich
	var ours: Image = Image.load_from_file(TEX)
	if ours != null:
		print("unsere Datei: %dx%d format=%d pixel00=%s pixel1023=%s" % [
			ours.get_width(), ours.get_height(), ours.get_format(),
			str(ours.get_pixel(0, 0)), str(ours.get_pixel(1023, 1023))])
	quit(0)