import { useId } from "react";
import type {
  HeatmapCell,
  HeatmapProps,
  HeatmapRow,
} from "./schema";

export type FlatHeatmapCell = HeatmapCell & {
  rowLabel: string;
  columnLabel: string;
  rowIndex: number;
  columnIndex: number;
  originalIndex: number;
  identity: string;
  coordinate: string;
};

export function cellIdentity(rowIndex: number, columnIndex: number) {
  return `r${rowIndex}-c${columnIndex}`;
}

export function cellCoordinate(rowIndex: number, columnIndex: number) {
  return `R${String(rowIndex + 1).padStart(2, "0")} · C${String(
    columnIndex + 1,
  ).padStart(2, "0")}`;
}

/** スコアを0〜1へ写す。描画関数として範囲外入力にも防御的に対応する。 */
export function normalizeScore(score: number, min: number, max: number) {
  if (max === min) return 0.5;
  return Math.max(0, Math.min(1, (score - min) / (max - min)));
}

/** 正規化した値を0〜4の5段階へ写す。最大値だけは必ず最濃色になる。 */
export function intensityBand(score: number, min: number, max: number) {
  return Math.min(4, Math.floor(normalizeScore(score, min, max) * 5));
}

/** 行列を入力順つきの一次元セルへ変換する。 */
export function flattenCells(
  rows: readonly HeatmapRow[],
  columns: readonly string[],
): FlatHeatmapCell[] {
  return rows.flatMap((row, rowIndex) =>
    row.cells.map((cell, columnIndex) => ({
      ...cell,
      rowLabel: row.label,
      columnLabel: columns[columnIndex] ?? "",
      rowIndex,
      columnIndex,
      originalIndex: rowIndex * columns.length + columnIndex,
      identity: cellIdentity(rowIndex, columnIndex),
      coordinate: cellCoordinate(rowIndex, columnIndex),
    })),
  );
}

/** スコア降順。同点は元の行列順を保ち、入力が同じなら常に同じ結果になる。 */
export function rankedCells(
  rows: readonly HeatmapRow[],
  columns: readonly string[],
) {
  return flattenCells(rows, columns).sort(
    (a, b) => b.score - a.score || a.originalIndex - b.originalIndex,
  );
}

/** 最高スコア1件を返す。空の行列はnull。 */
export function priorityCell(
  rows: readonly HeatmapRow[],
  columns: readonly string[],
) {
  return rankedCells(rows, columns)[0] ?? null;
}

const BAND_CLASSES = [
  "border-outline bg-surface-subtle text-secondary",
  "border-tertiary/10 bg-tertiary/10 text-on-surface",
  "border-tertiary/20 bg-tertiary/20 text-on-surface",
  "border-tertiary/30 bg-tertiary/40 text-on-surface",
  "border-primary-container bg-primary-container text-on-primary",
] as const;

function stagger(index: number) {
  return `calc(var(--stagger-step) * ${index})`;
}

function scoreLabel(score: number) {
  return new Intl.NumberFormat("ja-JP", { maximumFractionDigits: 2 }).format(
    score,
  );
}

function CellLocator({
  rows,
  columns,
  cell,
  priority,
}: {
  rows: readonly HeatmapRow[];
  columns: readonly string[];
  cell: FlatHeatmapCell;
  priority: boolean;
}) {
  return (
    <span
      aria-hidden="true"
      className="grid size-10 shrink-0 gap-px border border-outline bg-outline"
      style={{
        gridTemplateColumns: `repeat(${columns.length}, minmax(0, 1fr))`,
      }}
    >
      {rows.flatMap((_, rowIndex) =>
        columns.map((__, columnIndex) => {
          const active =
            rowIndex === cell.rowIndex && columnIndex === cell.columnIndex;
          return (
            <span
              key={cellIdentity(rowIndex, columnIndex)}
              data-heatmap-locator-active={active ? "true" : undefined}
              data-row-index={active ? rowIndex : undefined}
              data-column-index={active ? columnIndex : undefined}
              className={
                active
                  ? priority
                    ? "bg-gradient-to-br from-tertiary to-accent-violet"
                    : "bg-primary"
                  : "bg-surface"
              }
            />
          );
        }),
      )}
    </span>
  );
}

export default function Heatmap({
  title,
  subtitle,
  scale,
  columns,
  rows,
  instanceId,
}: HeatmapProps) {
  const autoId = useId();
  const uid = (instanceId ?? autoId).replace(/[^a-zA-Z0-9_-]/g, "") || "heatmap";
  const radioName = `heatmap-view-${uid}`;
  const cells = flattenCells(rows, columns);
  const top = priorityCell(rows, columns);
  const topFive = rankedCells(rows, columns).slice(0, 5);
  const notes = cells.filter((cell) => cell.note);
  const interactionCss = cells
    .map(
      (cell) => `
[data-heatmap-root="${uid}"]:has([data-heatmap-hotspot="${cell.identity}"]:is(:hover,:focus-visible)) [data-heatmap-row-header="${cell.rowIndex}"] {
  background-color: color-mix(in srgb, var(--color-primary) 9%, var(--color-surface));
  box-shadow: inset 3px 0 0 var(--color-primary);
  color: var(--color-on-surface);
}
[data-heatmap-root="${uid}"]:has([data-heatmap-hotspot="${cell.identity}"]:is(:hover,:focus-visible)) [data-heatmap-column-header="${cell.columnIndex}"] {
  background-color: color-mix(in srgb, var(--color-primary) 9%, var(--color-surface));
  box-shadow: inset 0 -3px 0 var(--color-primary);
  color: var(--color-on-surface);
}
[data-heatmap-root="${uid}"]:has([data-heatmap-hotspot="${cell.identity}"]:is(:hover,:focus-visible)) [data-heatmap-surface="${cell.identity}"] {
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 2px var(--color-primary);
  color: var(--color-on-surface);
}
[data-heatmap-root="${uid}"]:has([data-heatmap-hotspot="${cell.identity}"]:is(:hover,:focus-visible)) [data-heatmap-default-priority="true"]:not([data-heatmap-surface="${cell.identity}"]) {
  filter: saturate(.28) brightness(1.08);
}`,
    )
    .join("\n");

  return (
    <section
      data-heatmap-root={uid}
      className="group/heatmap mx-auto max-w-slide bg-surface p-12 font-sans text-on-surface"
    >
      <style>{interactionCss}</style>
      <header className="mb-6 flex flex-wrap items-end justify-between gap-4">
        <div className="max-w-3xl">
          <h1 className="text-h1">{title}</h1>
          {subtitle && (
            <p className="mt-2 text-body-sm text-secondary">{subtitle}</p>
          )}
        </div>

        <div className="flex shrink-0 rounded-sm border border-outline bg-surface-subtle p-1 shadow-card">
          <input
            id={`${uid}-overview`}
            type="radio"
            name={radioName}
            defaultChecked
            className="heatmap-view-overview sr-only"
          />
          <label
            htmlFor={`${uid}-overview`}
            className="cursor-pointer rounded-sm px-4 py-1.5 text-label text-secondary group-has-[.heatmap-view-overview:checked]/heatmap:bg-primary group-has-[.heatmap-view-overview:checked]/heatmap:text-on-primary group-has-[.heatmap-view-overview:focus-visible]/heatmap:ring-2 group-has-[.heatmap-view-overview:focus-visible]/heatmap:ring-tertiary"
          >
            分布
          </label>
          <input
            id={`${uid}-priorities`}
            type="radio"
            name={radioName}
            className="heatmap-view-priorities sr-only"
          />
          <label
            htmlFor={`${uid}-priorities`}
            className="cursor-pointer rounded-sm px-4 py-1.5 text-label text-secondary group-has-[.heatmap-view-priorities:checked]/heatmap:bg-primary group-has-[.heatmap-view-priorities:checked]/heatmap:text-on-primary group-has-[.heatmap-view-priorities:focus-visible]/heatmap:ring-2 group-has-[.heatmap-view-priorities:focus-visible]/heatmap:ring-tertiary"
          >
            重点課題
          </label>
        </div>
      </header>

      <div
        data-testid="heatmap-overview"
        className="block group-has-[.heatmap-view-priorities:checked]/heatmap:hidden"
      >
        {top && (
          <div className="mb-5 grid gap-2 border-y border-outline py-4 sm:grid-cols-[auto_minmax(0,1fr)_auto] sm:items-center sm:gap-5">
            <div>
              <p className="font-mono text-label text-tertiary">
                PRIORITY COORDINATE
              </p>
              <p className="mt-0.5 font-mono text-h3">{top.coordinate}</p>
            </div>
            <p className="min-w-0 text-body-sm">
              <span className="font-semibold">{top.rowLabel}</span>
              <span className="mx-2 text-secondary">×</span>
              <span>{top.columnLabel}</span>
            </p>
            <p className="font-mono text-h2 sm:text-right">
              {scoreLabel(top.score)}
              <span className="ml-1 text-label text-secondary">
                / {scoreLabel(scale.max)}
              </span>
            </p>
          </div>
        )}

        <div data-heatmap-view="matrix-desktop" className="hidden sm:block">
          <table className="w-full table-fixed border-collapse">
            <colgroup>
              <col className="w-[28%]" />
              {columns.map((_, columnIndex) => (
                <col key={columnIndex} />
              ))}
            </colgroup>
            <thead>
              <tr className="border-y border-outline">
                <th className="px-3 py-3 text-left font-mono text-label text-secondary">
                  AREA / AXIS
                </th>
                {columns.map((column, columnIndex) => (
                  <th
                    key={columnIndex}
                    scope="col"
                    data-heatmap-column-header={columnIndex}
                    data-heatmap-default-axis={
                      columnIndex === top?.columnIndex ? "column" : undefined
                    }
                    className={`border-l border-outline px-2 py-3 text-center text-label transition-[background-color,box-shadow,color] ${
                      columnIndex === top?.columnIndex
                        ? "bg-tertiary-container text-on-tertiary-container"
                        : "text-secondary"
                    }`}
                  >
                    <span className="mb-1 block font-mono text-label opacity-70">
                      C{String(columnIndex + 1).padStart(2, "0")}
                    </span>
                    {column}
                  </th>
                ))}
              </tr>
            </thead>
            <tbody>
              {rows.map((row, rowIndex) => (
                <tr key={rowIndex}>
                  <th
                    scope="row"
                    data-heatmap-row-header={rowIndex}
                    data-heatmap-default-axis={
                      rowIndex === top?.rowIndex ? "row" : undefined
                    }
                    className={`border-b border-outline px-3 py-3 text-left text-label transition-[background-color,box-shadow,color] ${
                      rowIndex === top?.rowIndex
                        ? "bg-tertiary-container text-on-tertiary-container"
                        : "text-on-surface"
                    }`}
                  >
                    <span className="mb-1 block font-mono text-label opacity-70">
                      R{String(rowIndex + 1).padStart(2, "0")}
                    </span>
                    {row.label}
                  </th>
                  {row.cells.map((cell, columnIndex) => {
                    const flat = cells.find(
                      (candidate) =>
                        candidate.rowIndex === rowIndex &&
                        candidate.columnIndex === columnIndex,
                    ) as FlatHeatmapCell;
                    const isPriority = flat.originalIndex === top?.originalIndex;
                    const band = intensityBand(cell.score, scale.min, scale.max);
                    return (
                      <td
                        key={columnIndex}
                        data-testid="heatmap-cell"
                        className="animate-rise border-b border-l border-outline p-1.5"
                        style={{ animationDelay: stagger(flat.originalIndex) }}
                      >
                        <button
                          type="button"
                          data-row-index={rowIndex}
                          data-column-index={columnIndex}
                          data-heatmap-cell-id={flat.identity}
                          data-heatmap-hotspot={flat.identity}
                          data-heatmap-surface={flat.identity}
                          data-heatmap-default-priority={
                            isPriority ? "true" : undefined
                          }
                          data-priority={isPriority ? "true" : "false"}
                          aria-label={`${flat.coordinate} ${row.label} × ${columns[columnIndex]}: ${scoreLabel(cell.score)}`}
                          className={`relative flex min-h-16 w-full cursor-default flex-col items-center justify-center border p-2 text-center outline-none transition-[border-color,box-shadow,color,filter] focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 ${
                            isPriority
                              ? "border-tertiary bg-gradient-to-br from-tertiary to-accent-violet text-on-primary"
                              : BAND_CLASSES[band]
                          }`}
                        >
                          <span className="font-mono text-h3">
                            {scoreLabel(cell.score)}
                          </span>
                          <span className="mt-0.5 font-mono text-label opacity-70">
                            {flat.coordinate.replace(" · ", "/")}
                          </span>
                          {isPriority && (
                            <span className="absolute top-1 right-1 border-l border-surface/40 pl-1 font-mono text-label text-on-primary">
                              重点
                            </span>
                          )}
                        </button>
                      </td>
                    );
                  })}
                </tr>
              ))}
            </tbody>
          </table>
        </div>

        <div data-heatmap-view="matrix-mobile" className="sm:hidden">
          <div className="mb-3 grid grid-cols-2 gap-x-4 gap-y-2 border-y border-outline py-3">
            {columns.map((column, columnIndex) => (
              <div
                key={columnIndex}
                data-heatmap-column-header={columnIndex}
                data-heatmap-default-axis={
                  columnIndex === top?.columnIndex ? "column" : undefined
                }
                className={`flex min-w-0 items-baseline gap-2 px-1 py-1 transition-[background-color,box-shadow,color] ${
                  columnIndex === top?.columnIndex
                    ? "bg-tertiary-container text-on-tertiary-container"
                    : "text-secondary"
                }`}
              >
                <span className="font-mono text-label">
                  C{String(columnIndex + 1).padStart(2, "0")}
                </span>
                <span className="min-w-0 text-label">{column}</span>
              </div>
            ))}
          </div>

          <div className="border-t border-outline">
            {rows.map((row, rowIndex) => (
              <article
                key={rowIndex}
                data-heatmap-mobile-row={rowIndex}
                className="border-b border-outline py-4"
              >
                <h2
                  data-heatmap-row-header={rowIndex}
                  data-heatmap-default-axis={
                    rowIndex === top?.rowIndex ? "row" : undefined
                  }
                  className={`mb-2 flex items-center gap-2 px-1 py-1 text-body-sm transition-[background-color,box-shadow,color] ${
                    rowIndex === top?.rowIndex
                      ? "bg-tertiary-container text-on-tertiary-container"
                      : "text-on-surface"
                  }`}
                >
                  <span className="font-mono text-label opacity-70">
                    R{String(rowIndex + 1).padStart(2, "0")}
                  </span>
                  {row.label}
                </h2>
                <div
                  className="grid gap-1"
                  style={{
                    gridTemplateColumns: `repeat(${columns.length}, minmax(0, 1fr))`,
                  }}
                >
                  {row.cells.map((cell, columnIndex) => {
                    const flat = cells[
                      rowIndex * columns.length + columnIndex
                    ] as FlatHeatmapCell;
                    const isPriority =
                      flat.originalIndex === top?.originalIndex;
                    const band = intensityBand(
                      cell.score,
                      scale.min,
                      scale.max,
                    );
                    return (
                      <button
                        type="button"
                        key={columnIndex}
                        data-testid="heatmap-cell"
                        data-row-index={rowIndex}
                        data-column-index={columnIndex}
                        data-heatmap-cell-id={flat.identity}
                        data-heatmap-hotspot={flat.identity}
                        data-heatmap-surface={flat.identity}
                        data-heatmap-default-priority={
                          isPriority ? "true" : undefined
                        }
                        data-priority={isPriority ? "true" : "false"}
                        aria-label={`${flat.coordinate} ${row.label} × ${columns[columnIndex]}: ${scoreLabel(cell.score)}`}
                        className={`flex min-w-0 cursor-default flex-col items-center border px-1 py-2 outline-none transition-[border-color,box-shadow,color,filter] focus-visible:ring-2 focus-visible:ring-primary ${
                          isPriority
                            ? "border-tertiary bg-gradient-to-br from-tertiary to-accent-violet text-on-primary"
                            : BAND_CLASSES[band]
                        }`}
                      >
                        <span className="font-mono text-label opacity-70">
                          C{String(columnIndex + 1).padStart(2, "0")}
                        </span>
                        <span className="font-mono text-h3">
                          {scoreLabel(cell.score)}
                        </span>
                      </button>
                    );
                  })}
                </div>
              </article>
            ))}
          </div>
        </div>

        <div className="mt-4 flex flex-wrap items-center justify-end gap-3 font-mono text-label text-secondary">
          <span>{scale.lowLabel}</span>
          <div className="flex gap-1" aria-label={`${scale.lowLabel}から${scale.highLabel}`}>
            {BAND_CLASSES.map((className, index) => (
              <span
                key={index}
                aria-hidden="true"
                className={`h-2 w-8 rounded-full border ${className}`}
              />
            ))}
          </div>
          <span>{scale.highLabel}</span>
        </div>
      </div>

      <div
        data-testid="heatmap-priorities"
        className="hidden group-has-[.heatmap-view-priorities:checked]/heatmap:block"
      >
        <div className="mb-4 flex flex-wrap items-baseline justify-between gap-4 border-y border-outline py-4">
          <div>
            <p className="font-mono text-label text-tertiary">
              PRIORITY LOCATOR
            </p>
            <h2 className="mt-1 text-h2">優先着手 上位5件</h2>
          </div>
          <p className="font-mono text-label text-secondary">
            score / {scoreLabel(scale.max)}
          </p>
        </div>
        <div className="border-t border-outline">
          {topFive.map((cell, index) => {
            const isPriority = index === 0;
            const width = Math.max(
              6,
              normalizeScore(cell.score, scale.min, scale.max) * 100,
            );
            return (
              <article
                key={cell.originalIndex}
                data-testid="heatmap-priority-row"
                data-heatmap-cell-id={cell.identity}
                data-heatmap-surface={cell.identity}
                data-heatmap-default-priority={
                  isPriority ? "true" : undefined
                }
                data-row-index={cell.rowIndex}
                data-column-index={cell.columnIndex}
                data-score={cell.score}
                className={`animate-rise border-b transition-[border-color,box-shadow,color,filter] ${
                  isPriority
                    ? "border-tertiary bg-gradient-to-r from-tertiary/10 via-surface to-surface"
                    : "border-outline bg-surface"
                }`}
                style={{ animationDelay: stagger(index) }}
              >
                <button
                  type="button"
                  data-heatmap-hotspot={cell.identity}
                  aria-label={`${String(index + 1)}位 ${cell.coordinate} ${cell.rowLabel} × ${cell.columnLabel}: ${scoreLabel(cell.score)}`}
                  className="grid w-full cursor-default grid-cols-[2.5rem_3rem_minmax(0,1fr)_auto] items-center gap-3 px-1 py-4 text-left outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 sm:gap-4"
                >
                  <span className="font-mono text-label text-secondary">
                    {String(index + 1).padStart(2, "0")}
                  </span>
                  <span>
                    <CellLocator
                      rows={rows}
                      columns={columns}
                      cell={cell}
                      priority={isPriority}
                    />
                  </span>
                  <div className="min-w-0">
                    <p className="font-mono text-label text-tertiary">
                      {cell.coordinate}
                    </p>
                    <p className="mt-0.5 text-label text-on-surface">
                      {cell.rowLabel}
                      <span className="mx-2 text-secondary">×</span>
                      {cell.columnLabel}
                    </p>
                    <div className="mt-2 h-1.5 overflow-hidden bg-surface-subtle">
                      <span
                        className={`block h-full ${
                          isPriority
                            ? "bg-gradient-to-r from-tertiary to-accent-violet"
                            : "bg-tertiary"
                        }`}
                        style={{ width: `${width}%` }}
                      />
                    </div>
                  </div>
                  <span className="font-mono text-h3">
                    {scoreLabel(cell.score)}
                  </span>
                </button>
              </article>
            );
          })}
        </div>
      </div>

      {notes.length > 0 && (
        <details data-inline-disclosure="true" className="group mt-6 rounded-lg border border-outline bg-surface-subtle">
          <summary className="flex cursor-pointer list-none items-center px-4 py-3 text-label text-secondary focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-tertiary">
            <span>補足を確認</span>
            <span className="ml-auto font-mono">{notes.length}件</span>
            <span aria-hidden="true" className="ml-2 text-tertiary transition-transform group-open:rotate-45">＋</span>
          </summary>
          <div className="grid gap-3 border-t border-outline p-4 sm:grid-cols-2">
            {notes.map((cell) => (
              <article key={cell.originalIndex} data-note-item="true" className="rounded-md bg-surface p-4">
                <h3 className="text-label">{cell.rowLabel} × {cell.columnLabel}</h3>
                <p className="mt-1 font-mono text-label text-secondary">score {scoreLabel(cell.score)}</p>
                <p className="mt-2 text-body-sm">{cell.note}</p>
              </article>
            ))}
          </div>
        </details>
      )}
    </section>
  );
}

import { z } from "zod";

export const heatmapScaleSchema = z
  .object({
    min: z.number().describe("評価スコアの最小値"),
    max: z.number().describe("評価スコアの最大値。minより大きい値"),
    lowLabel: z.string().describe("凡例の最小側ラベル（例: 低）"),
    highLabel: z.string().describe("凡例の最大側ラベル（例: 高）"),
  })
  .strict()
  .refine((scale) => scale.max > scale.min, {
    message: "scale.max は scale.min より大きくすること",
    path: ["max"],
  });

export const heatmapCellSchema = z
  .object({
    score: z
      .number()
      .describe(
        "行と列の交点の評価スコア。scale.min〜scale.maxの範囲に収める",
      ),
    note: z
      .string()
      .optional()
      .describe("図の下の補足欄で明示的に展開する根拠・観察事実・対策の補足"),
  })
  .strict();

export const heatmapRowSchema = z
  .object({
    label: z.string().describe("行に置く業務領域・部門・対象名"),
    cells: z
      .array(heatmapCellSchema)
      .min(2)
      .max(6)
      .describe("columnsと同じ順・同じ件数の評価セル（2〜6件）"),
  })
  .strict();

export const schema = z
  .object({
    title: z.string().describe("スライドタイトル。最優先の交点を結論として書く"),
    subtitle: z
      .string()
      .optional()
      .describe("評価時点、評価方法、対象範囲、出典など"),
    scale: heatmapScaleSchema,
    columns: z
      .array(z.string())
      .min(2)
      .max(6)
      .describe("列に置く評価軸（2〜6件）"),
    rows: z
      .array(heatmapRowSchema)
      .min(2)
      .max(6)
      .describe("行に置く業務領域とセル（2〜6件）"),
    instanceId: z
      .string()
      .optional()
      .describe("同一ページに複数置く場合のビュー切替radio名の識別子"),
  })
  .strict()
  .superRefine((data, ctx) => {
    data.rows.forEach((row, rowIndex) => {
      if (row.cells.length !== data.columns.length) {
        ctx.addIssue({
          code: "custom",
          message: `cells は columns と同じ${data.columns.length}件にすること`,
          path: ["rows", rowIndex, "cells"],
        });
      }

      row.cells.forEach((cell, columnIndex) => {
        if (cell.score < data.scale.min || cell.score > data.scale.max) {
          ctx.addIssue({
            code: "custom",
            message: `score は ${data.scale.min}〜${data.scale.max} の範囲にすること`,
            path: ["rows", rowIndex, "cells", columnIndex, "score"],
          });
        }
      });
    });
  });

export type HeatmapScale = z.infer<typeof heatmapScaleSchema>;
export type HeatmapCell = z.infer<typeof heatmapCellSchema>;
export type HeatmapRow = z.infer<typeof heatmapRowSchema>;
export type HeatmapProps = z.infer<typeof schema>;

{
  "title": "基幹業務の刷新優先度 — 請求・入金の事業影響から着手する",
  "subtitle": "5業務領域 × 4評価軸を5段階で診断（2026年7月 業務部門ヒアリング）",
  "scale": {
    "min": 1,
    "max": 5,
    "lowLabel": "低",
    "highLabel": "高"
  },
  "columns": ["事業影響", "発生頻度", "検知困難性", "改善緊急度"],
  "rows": [
    {
      "label": "営業・顧客管理",
      "cells": [
        { "score": 3 },
        { "score": 4, "note": "顧客情報の重複登録が月平均38件発生" },
        { "score": 2 },
        { "score": 3 }
      ]
    },
    {
      "label": "受注・契約",
      "cells": [
        { "score": 4, "note": "契約条件の転記確認に1案件あたり約25分を要する" },
        { "score": 4 },
        { "score": 3 },
        { "score": 4 }
      ]
    },
    {
      "label": "調達・在庫",
      "cells": [
        { "score": 3 },
        { "score": 3 },
        { "score": 4, "note": "棚卸差異は月末まで顕在化せず、補充判断が遅れる" },
        { "score": 3 }
      ]
    },
    {
      "label": "請求・入金",
      "cells": [
        { "score": 5, "note": "請求遅延が売上計上と資金繰りの双方へ直結する" },
        { "score": 4 },
        { "score": 4 },
        { "score": 4, "note": "属人化した照合作業を次期更新前に標準化する必要がある" }
      ]
    },
    {
      "label": "経営管理",
      "cells": [
        { "score": 4 },
        { "score": 3 },
        { "score": 4, "note": "部門別採算の確定が翌月第8営業日まで遅れる" },
        { "score": 3 }
      ]
    }
  ],
  "instanceId": "core-business-risk"
}