/* =============================================================================
 * A00_Common/design/design_profile_base.ts
 * 종단도 계획선 기준 = 측점 한 벌(서버 일반 + 지금 구조물 측점 · 272) — `design_profile` 에서 나눔(700줄).
 * 계산 묶음 planline 단계(`design_pipeline_page`)도 같은 기준을 받음.
 * ========================================================================== */

import type { SectionDetailResponse } from "../../B06_Section/B06_Section_Api_Fetch";
import type { AlignmentBase } from "../../B05_Profile/logic/B05_Profile_UI_Profile_Alignment";
import type { IrregularStation } from "../../B05_Profile/B05_Profile_UI_IrregularStations";
import {
  irregularGraphStations,
  maxChainageOf,
} from "../../B05_Profile/B05_Profile_UI_Profile_Layout";
import { followMovedNodes, oneStationList } from "../../common_util/common_util_structure_station";

/** 계획선 측점 줄 = 측점 한 벌(서버 일반 + 지금 구조물 측점 · 272) — 표 · ▲▼ · 그래프 · 3D · 횡단 다시 셈(342-1)이
 *  같은 목록 · 사라진 구조물 측점의 꼭짓점은 서버와 같게 옮기거나 지움(`followMovedNodes`) · 늘 저장분에서 셈. */
export function listedBase(
  storedBase: AlignmentBase | null,
  detail: SectionDetailResponse | null,
  irregularStations: IrregularStation[],
): AlignmentBase | null {
  if (!storedBase || !detail) return storedBase;
  const server = detail.longitudinal.stations;
  const planted = irregularGraphStations(irregularStations, maxChainageOf(detail.longitudinal));
  const list = oneStationList(server, planted);
  const after = new Set(list.map((station) => station.chainage_m.toFixed(3)));
  const before = new Set(server.map((station) => station.chainage_m.toFixed(3)));
  const gone = server
    .filter((station) => station.kind === "irregular" && !station.grid)
    .map((station) => station.chainage_m)
    .filter((chainage) => !after.has(chainage.toFixed(3)));
  const born = list
    .map((station) => station.chainage_m)
    .filter((chainage) => !before.has(chainage.toFixed(3)));
  return {
    ...storedBase,
    basePvi: followMovedNodes(storedBase.basePvi, gone, born),
    stations: list.map((station) => ({
      station_id: station.station_id,
      chainage_m: station.chainage_m,
    })),
  };
}