Function updateArcSegmentInScript

packages/parsers/src/gsapParser.ts:2862–2897

(
  script: string,
  animationId: string,
  segmentIndex: number,
  update: Partial<ArcPathSegment>,
)

}

export function updateArcSegmentInScript(
  script: string,
  animationId: string,
  segmentIndex: number,
  update: Partial<ArcPathSegment>,
): string {
  const loc = locateAnimation(script, animationId);
  if (!loc) return script;

  const anim = loc.target.animation;
  if (!anim.arcPath?.enabled) return script;

  const segments = [...anim.arcPath.segments];
  if (segmentIndex < 0 || segmentIndex >= segments.length) return script;

  segments[segmentIndex] = { ...segments[segmentIndex]!, ...update };

  const waypoints = extractArcWaypoints(anim);
  if (waypoints.length < 2) return script;

  const motionPathCode = buildMotionPathObjectCode({
    waypoints,
    segments,
    autoRotate: anim.arcPath.autoRotate,
  });

  const varsArg = loc.target.call.varsArg;
  const existingProp = varsArg.properties.find(
    (p: AstNode) => isObjectProperty(p) && propKeyName(p) === "motionPath",
  );
  if (existingProp) {
    existingProp.value = parseExpr(motionPathCode);
  }

  return recast.print(loc.parsed.ast).code;
}

/**
 * Move a single motionPath waypoint (anchor) to a new position. The waypoint