Aislo/B05_Profile/B05_Profile_UI_Drainage_Suggest.ts

/* =============================================================================
 * B05_Profile_UI_Drainage_Suggest.ts
 * 배수유역 칸 제안 목록(347-3) — 관경 · 시설 종류를 보여 주고 [적용] 한 번에 관 초안으로.
 * 모으기 · 얹기 규칙은 `logic/B05_Profile_Drainage_Suggest.ts` · 자동 바꿈 없음.
 * 관 자리 후보 = [자동 제안] 목록(510 · `B05_Profile_UI_Drainage_Propose`) — 여기 안 올림(두 목록 겹침).
 * ========================================================================== */

import type {
  DetailBasinResponse,
  DetailPipeInput,
} from "../B04_PreProcess/B04_PreProcess_Api_Fetch";
import {
  applySuggestions,
  collectSuggestions,
  type Suggestion,
} from "./logic/B05_Profile_Drainage_Suggest";

const FACILITY_NAME: Record<string, string> = {
  pipe: "배관",
  box_culvert: "BOX암거",
  ford_bridge: "세월교",
};

const facilityName = (id: string): string => FACILITY_NAME[id] ?? id;

/** 제안 한 줄 글. */
export function suggestionText(item: Suggestion): string {
  const at = `측점 ${Math.round(item.chainageM)} m`;
  if (item.kind === "position") return at; // 모으지 않음(510 · [자동 제안] 목록)
  if (item.kind === "facility")
    return `${at} — ${facilityName(item.from)} → ${facilityName(item.to)} 검토`;
  return `${at} — 관경 ${item.from === null ? "미정" : `Ø${item.from}`} → Ø${item.to}`;
}

export interface DrainageSuggest {
  root: HTMLElement;
  update(response: DetailBasinResponse): void;
  /** 노선 · 관이 바뀌어 낡음 — [적용] 끔(옛 노선 기준 제안이 새 노선에 안 들어가게). */
  setStale(stale: boolean): void;
}

export function createDrainageSuggest(
  pipeRequest: () => DetailPipeInput[],
  applyPoints: (points: DetailPipeInput[]) => void,
): DrainageSuggest {
  const root = document.createElement("div");
  root.className = "b05-drainage__suggest";
  root.hidden = true;
  const head = document.createElement("div");
  head.className = "b05-drainage__suggest-head";
  const title = document.createElement("span");
  const apply = document.createElement("button");
  apply.type = "button";
  apply.className = "ui-btn ui-btn--filled b05-drainage__analyze";
  apply.setAttribute("data-size", "22");
  apply.textContent = "적용";
  const applyTitle =
    "관경 · 시설 제안을 관 초안에 한 번에 얹습니다 — [저장] 때 남습니다(관 자리는 [자동 제안]).";
  apply.title = applyTitle;
  head.append(title, apply);
  const list = document.createElement("ul");
  list.className = "b05-drainage__suggest-list";
  root.append(head, list);
  let suggestions: Suggestion[] = [];
  let stale = false;
  /** [적용] 켜짐 — 낡지 않고 관경 · 시설 제안이 있을 때. */
  const paintApply = (): void => {
    apply.disabled = stale || suggestions.length === 0;
    apply.title = stale ? "노선이 바뀌어 제안이 낡음 — 새 계산 뒤 적용" : applyTitle;
  };

  apply.addEventListener("click", () => {
    if (suggestions.length && !apply.disabled)
      applyPoints(applySuggestions(pipeRequest(), suggestions));
  });

  return {
    root,
    update(response) {
      suggestions = response.stale
        ? []
        : collectSuggestions(response.pipe_points, response.basins, []);
      root.hidden = suggestions.length === 0;
      title.textContent = `제안 ${suggestions.length}건`;
      paintApply();
      list.replaceChildren(
        ...suggestions.map((item) => {
          const row = document.createElement("li");
          row.textContent = suggestionText(item);
          return row;
        }),
      );
    },
    setStale(next) {
      stale = next;
      paintApply();
    },
  };
}