# res://scenes/debug/orrery_view.gd
extends Node2D

@export_group("Generation Assets")
@export var star_scene: PackedScene
@export var planet_scene: PackedScene
@export var moon_scene: PackedScene
@export var barycenter_scene: PackedScene
@export var spaceship_scene: PackedScene # Add this even if unused for now

@export_group("Orrery Settings")
@export var debug_marker_scene: PackedScene # Link your new DebugMarker.tscn here

@onready var camera: Camera2D = $Camera2D
@onready var system_root: Node2D = $GeneratedSystem
@onready var info_label: RichTextLabel = $UI/InfoPanel/MarginContainer/InfoLabel

var markers: Dictionary = {} # Maps a body to its marker

func _ready():
	# 1. Create and configure the generator tool.
	var generator = StarSystemGenerator.new()
	
	# Create a temporary StarSystem-like object to pass to the generator
	var temp_system_node = Node2D.new()
	temp_system_node.star_scene = star_scene
	temp_system_node.planet_scene = planet_scene
	temp_system_node.moon_scene = moon_scene
	temp_system_node.barycenter_scene = barycenter_scene
	temp_system_node.spaceship_scene = spaceship_scene
	
	# 2. Generate the system under our dedicated root node.
	var generation_result = generator.generate(temp_system_node)
	system_root.add_child(temp_system_node) # Keep the generated hierarchy
	
	# 3. Create a debug marker for every generated body.
	var all_bodies = generation_result.all_bodies + generation_result.all_barycenters
	for body in all_bodies:
		if is_instance_valid(body):
			var marker = debug_marker_scene.instantiate()
			add_child(marker) # Add markers to the OrreryView, not the generated system
			marker.initialize(body)
			marker.marker_selected.connect(_on_marker_selected)
			markers[body] = marker

func _process(_delta):
	# Keep the markers synced with their body's global position.
	for body in markers:
		var marker = markers[body]
		marker.global_position = body.global_position

func _unhandled_input(event: InputEvent):
	# Simple camera controls
	if event is InputEventMouseMotion and event.button_mask & MOUSE_BUTTON_MASK_MIDDLE:
		camera.offset -= event.relative / camera.zoom.x

	if event is InputEventMouseButton:
		if event.button_index == MOUSE_BUTTON_WHEEL_UP:
			camera.zoom *= 1.2
		elif event.button_index == MOUSE_BUTTON_WHEEL_DOWN:
			camera.zoom /= 1.2

func _on_marker_selected(body):
	# Update the info panel with the selected body's data.
	var text = "[b]%s[/b]\n" % body.name
	
	if body is OrbitalBody3D:
		text += "Mass: %.2f\n" % body.mass
		text += "Velocity: (%.2f, %.2f)\n" % [body.linear_velocity.x, body.linear_velocity.y]
		text += "Position: (%.0f, %.0f)\n" % [body.global_position.x, body.global_position.y]
		if body is Barycenter and is_instance_valid(body.get_parent()):
			text += "Parent: %s" % body.get_parent().name
	
	info_label.text = text