class_name TreeNode
extends Node3D

@onready var area: Area3D = $InteractRange
var mesh_instances: Array[MeshInstance3D] = []
var original_materials: Array[Material] = []
var outline_material: Material
var base_circle: MeshInstance3D
var circle_material: Material

func _ready():
	create_base_circle()
	# Find all MeshInstance3D nodes in the GLB
	find_all_mesh_instances(self)

	setup_outline_material()
	area.body_entered.connect(_on_player_entered)
	area.body_exited.connect(_on_player_exited)

func setup_outline_material():
	if mesh_instances.is_empty():
		print("Warning: No MeshInstance3D found in GLB!")
		return

	# Store original materials
	for mesh in mesh_instances:
		if mesh.get_surface_override_material(0):
			original_materials.append(mesh.get_surface_override_material(0))
		else:
			original_materials.append(mesh.get_surface_override_material(0))
	# Create outline material with your shader
	outline_material = ShaderMaterial.new()
	outline_material.shader = preload("res://outline.gdshader")
	outline_material.set_shader_parameter("color", Vector3(0.702, 0.557, 0.259))

func find_all_mesh_instances(node: Node):
	if node is MeshInstance3D:
			mesh_instances.append(node)

	for child in node.get_children():
			find_all_mesh_instances(child)

func create_base_circle():
	base_circle = MeshInstance3D.new()
	add_child(base_circle)

	# Create a flat cylinder for the circle
	var cylinder = CylinderMesh.new()
	cylinder.top_radius = 0.4 # Adjust size as needed
	cylinder.bottom_radius = 0.4
	cylinder.height = 0.02 # Very thin to make it look like a flat circle
	cylinder.rings = 1
	cylinder.radial_segments = 9 # More segments = smoother circle

	base_circle.mesh = cylinder

	# Create transparent material with outline
	circle_material = StandardMaterial3D.new()
	circle_material.flags_transparent = true
	circle_material.albedo_color = Color(1.0, 0.843, 0.0, 0.0) # Fully transparent gold

	# Add rim lighting effect for outline appearance
	circle_material.rim_enabled = true
	circle_material.rim = 1.0
	circle_material.rim_tint = 1.0
	circle_material.rim_color = Color(1.0, 0.843, 0.0) # Gold rim

	base_circle.material_override = circle_material

	# Position at ground level
	base_circle.position.y = 0.01 # Slightly above ground to avoid z-fighting

	# Start hidden
	base_circle.visible = false

func _on_player_entered(body: Node3D):
	if body.is_in_group("player"):
		base_circle.visible = true
		# Apply outline to all mesh instances
		for mesh in mesh_instances:
			mesh.material_overlay = outline_material

func _on_player_exited(body: Node3D):
	if body.is_in_group("player"):
		Log.pr('Out of range...')
		base_circle.visible = false
			# Remove outline from all mesh instances
		for mesh in mesh_instances:
			mesh.material_overlay = null