import type { CpNode } from '../cp-node.js';
import { getBoundaryTangentLine } from '../../point-on-shape/get-boundary-tangent-line.js';
import { getBeziersFromTangents } from '../../utils/get-beziers-from-tangents.js';


/**
 * Returns the bezier curves (an array of 1 or 2 lines or quadratics joined
 * smoothly) approximating the shape boundary between the contact points of 
 * two `CpNode`s.
 * 
 * @param cpNodeA 
 * @param cpNodeB 
 */
function getImpliedBoundaryBezierBetween(
        cpNodeA: CpNode,
        cpNodeB: CpNode): number[][][] {

    return getBeziersFromTangents(
        getBoundaryTangentLine(cpNodeA.pointOnShape, true),
        getBoundaryTangentLine(cpNodeB.pointOnShape, false)
    );
}


export { getImpliedBoundaryBezierBetween }