extends Node

func _ready():
	print("=== LightmapGI Baked Lighting Baker ===")
	print("Opening scene: res://assets/scenes/modular/kit_demo.tscn")
	
	# Load the scene
	var scene = ResourceLoader.load("res://assets/scenes/modular/kit_demo.tscn")
	if not scene:
		print("ERROR: Failed to load scene!")
		get_tree().quit(1)
		return
	
	var instance = scene.instantiate()
	get_tree().root.add_child(instance)
	
	# Find the LightmapGI node
	var lightmap = instance.find_child("LightmapGI", true, false)
	if not lightmap:
		print("ERROR: No LightmapGI node found in scene!")
		get_tree().quit(1)
		return
	
	if not lightmap is LightmapGI:
		print("ERROR: Found node 'LightmapGI' is not a LightmapGI type!")
		get_tree().quit(1)
		return
	
	print("LightmapGI found. Configuration:")
	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)
	
	# Start baking
	print("")
	print("=== Starting LightmapGI bake ===")
	print("(This may take a while...)")
	
	# Wait one frame for scene to fully initialize
	await get_tree().process_frame
	
	var result = lightmap.bake(instance, null)
	
	if result != OK:
		print("ERROR: Lightmap bake failed with error code: ", result)
		get_tree().quit(1)
		return
	
	print("")
	print("=== Lightmap bake successful! ===")
	
	# Save the scene with baked data
	print("Saving scene with baked lightmap data...")
	var packed = PackedScene.new()
	packed.pack(instance)
	var save_result = ResourceSaver.save(packed, "res://assets/scenes/modular/kit_demo.tscn")
	
	if save_result != OK:
		print("ERROR: Failed to save scene! Error code: ", save_result)
		get_tree().quit(1)
		return
	
	print("Scene saved successfully!")
	print("Baked lighting data is now embedded in kit_demo.tscn")
	print("(The LightmapGI node's light_data property contains the baked data)")
	print("")
	print("=== Done ===")
	get_tree().quit(0)