class_name ToolPowerDemand
extends RefCounted

var tool_id: StringName
var effective_power_kw: float


func _init(p_tool_id: StringName, p_effective_power_kw: float) -> void:
	tool_id = p_tool_id
	effective_power_kw = p_effective_power_kw


func validation_error() -> String:
	if tool_id.is_empty():
		return "tool_id is empty"
	if not is_finite(effective_power_kw) or effective_power_kw < 0.0:
		return "tool power must be finite and non-negative"
	return ""