class_name CockpitPressureBulkhead
extends Node3D

## Imported pressure hull (end cap, knuckle and barrel in one shell) and the
## porthole bolted into it. Both models are instanced by `cockpit_interior.tscn`.

const WHITEBOX_NAMES: Array[String] = [
	"LeftBulkhead",
	"RightBulkhead",
	"TopBulkhead",
	"BottomBulkhead",
]

var _hull_shells: Array[Node] = []
var _porthole_frame: MeshInstance3D
var _porthole_glass: MeshInstance3D


func _ready() -> void:
	var hull := get_node_or_null("HullWall")
	if hull != null:
		_hull_shells = hull.find_children("*", "MeshInstance3D", true, false)
	_porthole_frame = _find_mesh("Porthole")
	_porthole_glass = _find_mesh("PortholeGlass")
	if _hull_shells.is_empty() or _porthole_frame == null or _porthole_glass == null:
		push_error("Pressure hull or porthole model is missing a node")
		return
	_porthole_glass.cast_shadow = GeometryInstance3D.SHADOW_CASTING_SETTING_OFF


func panel_count() -> int:
	return _hull_shells.size()


func hull_shell() -> MeshInstance3D:
	return null if _hull_shells.is_empty() else _hull_shells[0] as MeshInstance3D


func porthole_frame() -> MeshInstance3D:
	return _porthole_frame


func porthole_glass() -> MeshInstance3D:
	return _porthole_glass


func rectangular_whitebox_is_hidden() -> bool:
	for node_name: String in WHITEBOX_NAMES:
		var whitebox := get_parent().get_node_or_null(node_name) as MeshInstance3D
		if whitebox != null and whitebox.visible:
			return false
	return true


func _find_mesh(mesh_name: String) -> MeshInstance3D:
	var matches := find_children(mesh_name, "MeshInstance3D", true, false)
	return null if matches.is_empty() else matches[0] as MeshInstance3D