class_name SiteRoute
extends Resource

@export var route_id: StringName
@export var waypoints_m := PackedVector3Array()
@export var maximum_depth_m: float = 0.0


func validation_error() -> String:
	if route_id.is_empty():
		return "route id is empty"
	if waypoints_m.size() < 2:
		return "route needs at least two waypoints"
	if not is_finite(maximum_depth_m) or maximum_depth_m <= 0.0:
		return "route maximum depth must be positive"
	for waypoint: Vector3 in waypoints_m:
		if not (is_finite(waypoint.x) and is_finite(waypoint.y) and is_finite(waypoint.z)):
			return "route waypoints must be finite"
		if -waypoint.y > maximum_depth_m:
			return "route waypoint exceeds the route maximum depth"
	return ""