extends SceneTree
## Repro harness for the "bull + matador invisible on phone" bug. Loads the shell with the
## arena level, waits for spawn, prints vis/pos for the skinned characters and dumps a real
## screenshot so the Compatibility (mobile/web) render path can be compared to Forward+.
##   godot --rendering-method gl_compatibility --script tests/mobile_render_repro.gd
##   godot --rendering-method forward_plus     --script tests/mobile_render_repro.gd

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


func _report(nodes: Array, label: String) -> void:
	if nodes.is_empty():
		print("  ", label, ": NONE")
		return
	var n := nodes[0] as Node3D
	print("  ", label, ": vis=", n.is_visible_in_tree(), " pos=", str(n.global_position.round()))
	# Walk to the skinned MeshInstance3D and report its state + AABB.
	_dump_meshes(n, "    ")


func _dump_meshes(node: Node, indent: String) -> void:
	if node is MeshInstance3D:
		var mi := node as MeshInstance3D
		var aabb := mi.get_aabb()
		var lod_count := 0
		var surf := 0
		if mi.mesh != null:
			surf = mi.mesh.get_surface_count()
		print(indent, "MeshInstance3D '", mi.name, "' vis=", mi.visible,
			" skin=", mi.skin != null, " gscale=", str(mi.global_transform.basis.get_scale()),
			"\n", indent, "  aabb_pos=", aabb.position, " aabb_size=", aabb.size,
			" custom_aabb=", mi.custom_aabb.size, " surfaces=", surf)
	for c: Node in node.get_children():
		_dump_meshes(c, indent)


func _run() -> void:
	# Compatibility (OpenGL) has no RenderingDevice; Forward+/Mobile do. This reflects the
	# renderer actually chosen by --rendering-method, unlike the static project setting.
	var method := "gl_compatibility" if RenderingServer.get_rendering_device() == null else "forward_plus"
	print("=== RENDER REPRO  method=", method, "  gpu=", RenderingServer.get_video_adapter_name(), " ===")

	var run: Node = root.get_node("Run")
	run.ensure_run()
	run.debug_level_override = run.get_level(&"arena")

	var scene: Node = load("res://scene.tscn").instantiate()
	root.add_child(scene)
	current_scene = scene

	await create_timer(1.2).timeout

	print("bull + matador state:")
	_report(get_nodes_in_group(&"player"), "bull")
	_report(get_nodes_in_group(&"matador"), "matador")

	# Force a couple more draw frames, then grab the framebuffer.
	for i in 4:
		await process_frame
	var img := root.get_viewport().get_texture().get_image()
	var out := "tests/output/render_%s.png" % method
	DirAccess.make_dir_recursive_absolute("res://tests/output")
	img.save_png("res://" + out)
	print("screenshot -> ", out, "  (", img.get_width(), "x", img.get_height(), ")")
	quit()