/* =============================================================================
 * A00_Common/design/design_route_server.ts
 * 계산 자리 route 「서버」(PLAN 511-B B-5) — 묶음 route 단계 노선(선 · 곡선)을 서버 Node
 * `route.polyline`(같은 `buildEditedPolyline` · 노선 저장과 같은 셈)으로. 판이 both 면 null(화면 셈) ·
 * 서버 값만 · 잠잠 뒤 · 끊김 · 실패 = undefined(단계가 화면 셈으로).
 * ========================================================================== */

import type { DraftArgs } from "../../B05_Profile/logic/B05_Profile_Pipeline_RouteGround";
import type { EditedPolyline } from "../../B05_Profile/logic/B05_Profile_UI_RouteEdit_Curve";
import { calcOnServerNow } from "./design_calc_sites";
import { calcOnServerOnly } from "./design_calc_server";

export function routeOnServer(
  args: DraftArgs,
  signal: AbortSignal,
): Promise<EditedPolyline | undefined> | null {
  if (!calcOnServerNow("route")) return null;
  const [points, curveOn, curveRadius, minRadiusM] = args;
  const route_polyline = {
    points,
    curve_flags: curveOn,
    radii: curveRadius,
    min_radius_m: minRadiusM,
  };
  return calcOnServerOnly<EditedPolyline>(
    "route",
    "route.polyline",
    {
      run: ["route.polyline"],
      inputs: { route_polyline },
      pick: (results) => results["route.polyline"],
    },
    signal,
  );
}