# fly_attachment_effect_test —— 40250 BuildAttachInstance/UpdateAttachInstance/
# __Bomb 的资源消费和 FlyTrace 回归。
extends SceneTree

const AssetRoot = preload("res://asset_root.gd")
const EffectRegistry = preload("res://fx/effect_registry.gd")
const FlyObject = preload("res://fly_object.gd")

var _failures := 0

func _ck(condition: bool, message: String) -> void:
	if condition:
		return
	_failures += 1
	printerr("FAIL: ", message)

func _init() -> void:
	await _run()
	quit(1 if _failures else 0)

func _run() -> void:
	await process_frame
	var assets := AssetRoot.path()
	var registry = EffectRegistry.new()
	registry.setup(assets)
	var spawned_effects: Array[String] = []
	registry.fx_spawned.connect(func(name: String, _id: int, _lifetime: int): spawned_effects.append(name))

	var mount := Node3D.new()
	get_root().add_child(mount)
	var geometry_probe = FlyObject.FlyInstance.new()
	geometry_probe.pos = Vector3.ZERO
	geometry_probe.vel = Vector3(0.0, -1.0, 0.0)
	var multi_line := {"fly_type": 2, "distance": 1.0, "roll": 0.0}
	_ck(is_equal_approx(geometry_probe._attachment_position(multi_line).z, -1.0),
			"AttachData MULTI_LINE keeps 40250's negative local Z offset")
	var manager := FlyObject.new()
	manager.manual_step = true
	mount.add_child(manager)
	manager.setup(mount, null, assets)
	manager.set_effect_registry(registry)

	var target := Node3D.new()
	target.position = Vector3(5.0, 0.0, 0.0)
	mount.add_child(target)
	await process_frame

	var data = FlyObject.FlyData.load_msf(
		"d:/ymir work/pc/assassin/effect/arrow_01_fast.msf", assets)
	_ck(data != null, "arrow_01_fast.msf loads")
	if data != null:
		_ck(data.attach_data.size() == 1, "arrow resource keeps one AttachData group")
		var inst = manager.spawn(Vector3.ZERO, target, false, data)
		_ck(inst.attachments.size() == 1, "BuildAttachInstance creates one attachment")
		if inst.attachments.size() == 1:
			var attachment: Dictionary = inst.attachments[0]
			_ck(is_instance_valid(attachment.get("effect", null)),
					"AttachFile is instantiated through EffectRegistry")
			_ck(is_instance_valid(attachment.get("tail", null)),
					"TailFlag creates a FlyTrace mesh")
			_ck(manager._visuals.get(inst, null) == null,
					"resource-driven projectile does not duplicate a generic SphereMesh")
		manager.step(0.01)
		if inst.attachments.size() == 1:
			var trail_history: Array = inst.attachments[0].get("history", [])
			_ck(trail_history.size() >= 2, "UpdateAttachInstance records moving tail positions")

		# Arrow reaches the target and must use BombEffect instead of only the
		# generic placeholder flash when EffectRegistry has the source resource.
		for _i in 20:
			if manager.active_count() == 0:
				break
			manager.step(0.05)
		var found_bomb := false
		for effect_name in spawned_effects:
			if String(effect_name).get_file().get_basename() == "blow_1_low_center":
				found_bomb = true
		_ck(found_bomb, "__Bomb consumes arrow BombEffect resource")
		_ck(manager._flash_nodes.is_empty(),
				"resource BombEffect does not receive a duplicate pre-hit flash")

	manager.clear_for_map_change()
	_ck(manager.active_count() == 0 and manager._effect_nodes.is_empty(),
			"map reset releases resource-driven bomb effects")
	manager.free()
	target.free()
	mount.free()
	await process_frame
	if _failures == 0:
		print("PASS: fly_attachment_effect_test")