import {
	type AnyCreature,
	calculateInitiative,
	calculatePf2eInitiative,
} from "@initiative/domain";

export function creatureInitiativeModifier(creature: AnyCreature): number {
	if ("system" in creature && creature.system === "pf2e") {
		return calculatePf2eInitiative(creature.perception).modifier;
	}
	const c = creature as {
		abilities: { dex: number };
		cr: string;
		initiativeProficiency: number;
	};
	return calculateInitiative({
		dexScore: c.abilities.dex,
		cr: c.cr,
		initiativeProficiency: c.initiativeProficiency,
	}).modifier;
}