/* =============================================================================
 * 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.
 *
 * 관 옵션(폼 칸 · 관 초안 ?? 저장 관)의 조정값 몫도 여기서(387-4b · `layPipeOptions`) — 관 벽 높이 · 형태(h · m) ·
 * 흙막이 n 단(h · m · 구간). 예전에는 B06 보기가 열릴 때 폼이 되보내야만 얹혀 B05 만 연 면적이 달랐음.
 * 형상(관 세트 · 흙막이 세트 · 도수로 · 세월교 · BOX 제원)은 형상 얹기(`attachShapes`)가 이미 함.
 * 같은 규칙 = `B06_Section_UI_Page_Pipe_Options`(폼을 고친 그 자리 즉시 반영 몫).
 * ========================================================================== */

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";
import { PIPE_MATCH_M } from "../A00_Common/design/design_selection";
import { applySpanPatch, WALL_MIN_PURE_HEIGHT_M } from "./logic/B06_Section_UI_Cross_Culvert_Const";
import { tierSpanOf } from "./B06_Section_UI_Cross_Culvert_Wire";
import { computeStoredLayouts } from "./B06_Section_Structure_Layouts";

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 },
      };
  }
}

/** 관 옵션 조정값 몫 얹기(387-4b) — 관 초안 ?? 저장 관(페이지 자료 줄). 가게 · 자료 줄은 부를 때 늦게 불러옴 —
 *  이 파일을 끄는 시험 · 묶음이 그 줄기(fetch · 가게)를 안 끌게. 못 받으면 그대로.
 *  `reshape` = 관 제원도 형상 얹기 규칙으로 다시(다시 셈 창구 앞 · B06 폼 되보내기가 옵션 값을 제원에 그대로
 *  써 넣어 최소 높이 · 집수정 쪽 칸이 서버와 갈림 — 집수정 높이 1.5 ↔ 2 등). */
export async function withPipeOptions(
  detail: SectionDetailResponse,
  projectId: string,
  reshape = false,
): Promise<void> {
  if (reshape)
    await import("./B06_Section_Section_Drafts")
      .then(({ withDraftShapes }) => withDraftShapes(detail, projectId))
      .catch(() => undefined);
  const pipes = await import("../B05_Profile/B05_Profile_Api_Pipes_Draft")
    .then(
      async ({ readPendingPipes }) =>
        readPendingPipes(projectId) ??
        (await import("../A00_Common/design/design_page_data"))
          .pagePipes(projectId)
          .then((res) => res.pipe_points),
    )
    .catch(() => null);
  if (pipes) layPipeOptions(detail, pipes as OptionPipe[]);
}

/** 관 하나 — 자리 · 폼 칸(관 초안 · 저장 관 `pipe_points` 같은 꼴). */
export interface OptionPipe {
  chainage_m: number;
  options?: Record<string, unknown> | null;
}

const isDefault = (a: WallAdjust): boolean =>
  Math.abs(a.x) < 1e-9 && a.d == null && a.h == null && a.m == null;
const round1 = (value: number): number => Math.round(value * 10) / 10;

/** 조정창 `update` 와 같은 꼴 — x · d 는 그대로 · h · m 만(폼 한 칸이 주인 · 빈 칸 = 자동 null). */
function setWall(design: CrossDesign, role: string, h: number | null, m: string | null): void {
  const current = { ...ZERO_ADJUST, ...(design.revet_adjust?.[role] ?? {}) } as WallAdjust;
  const next: WallAdjust = { ...current, h: h === null ? null : round1(h), m };
  const bucket = { ...(design.revet_adjust ?? {}) };
  if (isDefault(next)) delete bucket[role];
  else bucket[role] = next;
  design.revet_adjust = bucket;
}

/** 관 옵션의 조정값 몫을 상세에 얹음(폼 칸 전부 = 되보내기와 같은 규칙) — 같은 값이면 그대로. */
export function layPipeOptions(
  detail: SectionDetailResponse,
  pipes: ReadonlyArray<OptionPipe>,
): void {
  const sections = detail.cross_sections;
  for (const pipe of pipes) {
    const options = pipe.options;
    if (!options) continue;
    const near = (at: number): boolean => Math.abs(at - pipe.chainage_m) < PIPE_MATCH_M;
    // 물넘이포장 = 제원만(66-2) · 벽 없음
    if (sections.some((s) => s.ford_pavement && near(s.ford_pavement.chainage_m ?? s.chainage_m)))
      continue;
    const owner = sections.find((s) => near(s.chainage_m));
    const culvert = owner?.culvert;
    const design = owner?.design;
    if (!owner || !culvert || !design) continue;
    const num = (key: string): number | undefined => {
      const value = Number(options[key]);
      return Number.isFinite(value) ? value : undefined;
    };
    for (const role of ["inlet", "outlet"] as const) {
      const form = options[`${role}_revet_form`];
      setWall(
        design,
        role,
        num(`${role}_revet_height_m`) ?? null,
        typeof form === "string" ? form : null,
      );
    }
    if (culvert.hidden_pipe && !owner.ford && !owner.box) continue;
    // 흙막이 n 단 = 지형이 세운 유출 다단(`pipeExtraCount` 와 같은 셈)
    const outlet = design.extra_wall_counts?.outlet ?? 0;
    const probe = {
      ...owner,
      design: { ...design, extra_wall_counts: { basin: 0, ...design.extra_wall_counts, outlet } },
    };
    const tiers = outlet
      ? (computeStoredLayouts(probe, sections)?.culvert?.extraWalls.length ?? outlet)
      : 0;
    for (let n = 1; n <= tiers; n++) {
      const role = `extra${n - 1}`;
      const value = (item: string): number | undefined => {
        const raw = options[`soil_add_${n}_${item}`];
        return raw === undefined || raw === "" || !Number.isFinite(Number(raw))
          ? undefined
          : Number(raw);
      };
      const form = options[`soil_add_${n}_form`];
      const height = value("height");
      setWall(
        design,
        role,
        height === undefined ? null : Number(Math.max(height, WALL_MIN_PURE_HEIGHT_M).toFixed(1)),
        typeof form === "string" && form ? form : null,
      );
      const span = { lengthM: value("length"), beforeM: value("before"), afterM: value("after") };
      if (Object.values(span).every((v) => v === undefined)) continue;
      const at = tierSpanOf(owner, role);
      const current = {
        lengthM: Math.round((at.beforeM + at.afterM) * 10) / 10,
        beforeM: Math.round(at.beforeM * 10) / 10,
        afterM: Math.round(at.afterM * 10) / 10,
      };
      const next = applySpanPatch(current, span);
      design.extra_spans = {
        ...(design.extra_spans ?? {}),
        [role]: { length_m: next.lengthM, before_m: next.beforeM, after_m: next.afterM },
      };
    }
  }
}