/* =============================================================================
 * B06_Section_Section_Adjusts.ts
 * 저장 안 한 조정창 값(세션 · 측점 누가거리 열쇠)을 상세 설계 칸에 얹음 — 상세 가게가 읽을 때 한 번(387-4).
 *
 * 조정창(`_UI_Page_Station_Controls` · `_Ford_Controls` · `_Span_Control`)이 고칠 때 캐시에 얹는 것과 같은
 * 칸 · 같은 꼴. 예전에는 고칠 때만 얹어 새로고침 · B05 만 연 페이지는 세션 값을 몰랐음 — 카드 그리기가 면적을
 * 고쳐 들어 B06 을 연 뒤에만 면적이 바뀜(B05 만 연 면적 ≠ B06). 조정창은 세션 → 설계 순으로 읽으니 겹쳐도 같음.
 * ========================================================================== */

import { readState } from "../A00_Common/b_page_state";
import type { CrossDesign, SectionDetailResponse } from "./B06_Section_Api_Fetch";
import { DEFAULT_BASIN_ADJUST, ZERO_ADJUST } from "./B06_Section_UI_Cross_Culvert_Types";
import type { WallAdjust } from "./B06_Section_UI_Cross_Culvert_Types";
import { fordAdjustOf } from "./B06_Section_UI_Cross_Ford_Geom";
import { DEFAULT_BOX_SIDE_ADJUST } from "./B06_Section_UI_Cross_Box_Geom";

type Cells = Record<string, unknown>;
type Obj = Record<string, unknown>;
const INLET = ["auto", "revet", "I", "L", "U"];
const isObj = (value: unknown): value is Obj => !!value && typeof value === "object";
const count = (value: unknown): number =>
  Number.isInteger(value) && (value as number) > 0 ? (value as number) : 0;

/** 조정창 읽기와 같은 꼴 — 옛 숫자 = x 이동량 · d 0 = 기본 자리(null). */
function wallAdjust(value: unknown): WallAdjust | null {
  if (typeof value === "number" && Number.isFinite(value)) return { ...ZERO_ADJUST, x: value };
  if (!isObj(value)) return null;
  const partial = value as Partial<WallAdjust>;
  return { ...ZERO_ADJUST, ...partial, d: partial.d ? partial.d : null };
}

export function withDraftAdjusts(
  detail: SectionDetailResponse,
  projectId: string,
  routeId: number,
): void {
  const read = (name: Parameters<typeof readState>[0]): Cells =>
    readState<Cells>(name, projectId, routeId) ?? {};
  const revet = read("revetx");
  const basin = read("basinadjust");
  const inlet = read("inletstruct");
  const extra = read("extrawall");
  const spans = read("extraspan");
  const ford = read("fordadjust");
  const box = read("boxadjust");
  const link = read("revetlink") as { detached?: Cells; grade?: Cells };
  for (const section of detail.cross_sections) {
    const design = section.design as (CrossDesign & Obj) | null | undefined;
    if (!design) continue;
    const at = section.chainage_m.toFixed(2);
    const own = (cells: Cells): Array<[string, unknown]> =>
      Object.entries(cells)
        .filter(([key]) => key.startsWith(`${at}:`))
        .map(([key, value]) => [key.slice(at.length + 1), value]);
    for (const [role, value] of own(revet)) {
      const adjust = wallAdjust(value);
      if (adjust) design.revet_adjust = { ...(design.revet_adjust ?? {}), [role]: adjust };
    }
    if (typeof inlet[at] === "string" && INLET.includes(inlet[at] as string))
      design.inlet_structure = inlet[at] as CrossDesign["inlet_structure"];
    if (isObj(basin[at])) design.basin_adjust = { ...DEFAULT_BASIN_ADJUST, ...basin[at] };
    if (at in extra || `b${at}` in extra)
      design.extra_wall_counts = { outlet: count(extra[at]), basin: count(extra[`b${at}`]) };
    for (const [wall, value] of own(spans)) {
      const span = value as { lengthM: number; beforeM: number; afterM: number } | null;
      if (!span || !Number.isFinite(span.beforeM) || !Number.isFinite(span.afterM)) continue;
      design.extra_spans = {
        ...(design.extra_spans ?? {}),
        [wall]: { length_m: span.lengthM, before_m: span.beforeM, after_m: span.afterM },
      };
    }
    if (isObj(link.detached) && at in link.detached)
      design.revet_link_detached = !!link.detached[at];
    if (isObj(link.grade) && at in link.grade) design.revet_follow_grade = !!link.grade[at];
    if (isObj(ford[at])) design.ford_adjust = fordAdjustOf(ford[at]);
    const sides = box[at] as { left?: Obj; right?: Obj } | undefined;
    if (isObj(sides))
      design.box_adjust = {
        left: { ...DEFAULT_BOX_SIDE_ADJUST, ...sides.left },
        right: { ...DEFAULT_BOX_SIDE_ADJUST, ...sides.right },
      };
  }
}