extends Node3D

# Auto-bakes the LightmapGI when opened in the Godot editor.
# Only runs in editor mode — does nothing in exported builds.
# 
# Manual bake:
#   Open the scene in the Godot editor, select LightmapGI node,
#   click "Bake Lightmap" in the inspector at the top of the node's properties.
#
# This script provides feedback in the editor Output panel.

@tool

func _ready():
	if not Engine.is_editor_hint():
		# Not in editor — nothing to do for runtime
		return
	
	# Check if we have a LightmapGI node
	var lightmap = _find_lightmap_gi()
	if not lightmap:
		push_error("KitDemo: No LightmapGI node found in scene!")
		return
	
	# Check if already baked
	if lightmap.light_data != null:
		print("KitDemo: Lightmap already baked. To re-bake:")
		print("  Select LightmapGI node → 'Bake Lightmap' button in Inspector")
		return
	
	# Not baked — offer to bake
	print("KitDemo: LightmapGI found but not baked.")
	print("  To bake: Select LightmapGI → click 'Bake Lightmap' at top of Inspector")
	print("  Or right-click LightmapGI node → 'Bake Lightmap'")
	print("")
	print("  LightmapGI settings:")
	print("    Bounces: ", lightmap.bounces)
	print("    Texel Scale: ", lightmap.texel_scale)
	print("    Texel Subdiv: ", lightmap.texel_subdiv)
	print("    Max Texture Size: ", lightmap.max_texture_size)
	print("    Interior: ", lightmap.interior)


func _find_lightmap_gi() -> LightmapGI:
	for child in get_children():
		if child is LightmapGI:
			return child
	return null