import { CpNode } from "../cp-node.js";
import { getAllOnCircle } from "./get-all-on-circle.js";
import { isTerminating } from "./is-terminating.js";


/**
 * Returns the number of contact points (up to planar coordinates) on the 
 * maximal disk circle implied by this `CpNode`. 
 * 
 * See also `getProngCount`.
 */
function getRealProngCount(cpNode: CpNode) {
    const nonTerminatingCpNodes = getAllOnCircle(cpNode)
    .filter(cpNode => !isTerminating(cpNode));

    return nonTerminatingCpNodes.length;
}


export { getRealProngCount }