class_name DiveDifficultyProfile
extends RefCounted

var profile_id: StringName
var oxygen_consumption_multiplier: float
var battery_consumption_multiplier: float
var collision_damage_multiplier: float
var pressure_damage_multiplier: float
var crush_grace_multiplier: float


func _init(
	p_profile_id: StringName,
	p_oxygen_consumption_multiplier: float,
	p_battery_consumption_multiplier: float,
	p_collision_damage_multiplier: float,
	p_pressure_damage_multiplier: float,
	p_crush_grace_multiplier: float
) -> void:
	profile_id = p_profile_id
	oxygen_consumption_multiplier = p_oxygen_consumption_multiplier
	battery_consumption_multiplier = p_battery_consumption_multiplier
	collision_damage_multiplier = p_collision_damage_multiplier
	pressure_damage_multiplier = p_pressure_damage_multiplier
	crush_grace_multiplier = p_crush_grace_multiplier


static func exploration():
	return new(&"exploration", 0.75, 0.80, 0.65, 0.50, 1.50)


static func standard():
	return new(&"standard", 1.0, 1.0, 1.0, 1.0, 1.0)


static func expert():
	return new(&"expert", 1.20, 1.15, 1.25, 1.35, 0.75)


func validation_error() -> String:
	if profile_id.is_empty():
		return "difficulty profile_id is empty"
	for value: float in [
		oxygen_consumption_multiplier,
		battery_consumption_multiplier,
		collision_damage_multiplier,
		pressure_damage_multiplier,
		crush_grace_multiplier,
	]:
		if not is_finite(value) or value <= 0.0:
			return "difficulty multipliers must be finite and positive"
	return ""