/* =============================================================================
 * M01_MasterData_UI_LogicLab_FlowRows.ts
 * 흐름 로직의 왼쪽 「단가산출 상세」 줄 만들기(DOM 없음 · 순수) — 흐름도 출력 상자를 비용 종류별로 묶어
 * 줄(이름 · 단위 · 값) · 소계 · 계 · 함수 상자별 결과 값. 값은 DataFlow 계산 결과(`CfEvalResult`)를 읽기만 함.
 * 모양은 docs/raw/M01_쉬운단가/흐름도_적용_정함.md 7. 시험 = resources/tester/test_m01_logic_flowview.py
 * ========================================================================== */

import type { CfEvalResult } from "../M02_MasterTemplete/DataFlow/M02_DF_Eval";
import type { CfBox, CfCost, CfLogic, CfRound } from "../M02_MasterTemplete/DataFlow/M02_DF_Model";
import { roundBy, showRounded } from "../M02_MasterTemplete/DataFlow/M02_DF_Round";

export type FlowGroupKey = "labor" | "material" | "cost" | "plain";

/** 비용 종류 → 묶음(인력 = 노무비 · 재료 = 재료비 · 경비) · 값(비용 아님)은 따로 */
export const GROUP_OF: Record<CfCost, FlowGroupKey> = {
  노무비: "labor",
  재료비: "material",
  경비: "cost",
  값: "plain",
};
export const GROUP_ORDER: FlowGroupKey[] = ["labor", "material", "cost", "plain"];
const COST_OF: Record<Exclude<FlowGroupKey, "plain">, "노무비" | "재료비" | "경비"> = {
  labor: "노무비",
  material: "재료비",
  cost: "경비",
};

export interface FlowLine {
  box: string;
  name: string;
  unit: string;
  value: number | string | boolean | null;
  /** 보이는 글 — 숫자는 그 출력의 끝수 자리대로 */
  text: string;
}

export interface FlowGroup {
  key: FlowGroupKey;
  lines: FlowLine[];
  /** 비용 묶음만 — 합계 끝수를 적용한 소계 */
  sub: number | null;
  subText: string;
}

export interface FlowFunc {
  box: string;
  name: string;
  unit: string;
  value: unknown;
  text: string;
}

export interface FlowRows {
  groups: FlowGroup[];
  /** 합계 끝수(기본 1원 미만 버림)를 적용한 계 */
  total: number;
  totalText: string;
  funcs: FlowFunc[];
  errors: string[];
}

const plain = (v: unknown): string =>
  v === null || v === undefined || Array.isArray(v)
    ? "—"
    : typeof v === "number"
      ? v.toLocaleString("ko-KR", { maximumFractionDigits: 6 })
      : String(v);

/** 줄 모으기 — round.item = 출력 기본 끝수 · round.total = 합계 기본 끝수 */
export function flowRows(
  lg: CfLogic,
  ev: CfEvalResult,
  round: { item: CfRound; total: CfRound | null },
): FlowRows {
  const outs: CfBox[] = lg.boxes.filter((b) => b.kind === "output");
  const groups = GROUP_ORDER.map((key): FlowGroup => {
    const mine = outs.filter((b) => GROUP_OF[b.output?.cost ?? "값"] === key);
    const lines = mine.map((b): FlowLine => {
      const v = ev.outputs[b.id] ?? null;
      const r = b.output?.round ?? (key === "plain" ? undefined : round.item);
      return {
        box: b.id,
        name: b.name,
        unit: b.output?.unit ?? b.unit,
        value: v,
        text: typeof v === "number" ? showRounded(v, r) : plain(v),
      };
    });
    const raw = key === "plain" ? null : ev.cost[COST_OF[key]];
    const sub = raw === null ? null : roundBy(round.total, raw);
    return {
      key,
      lines,
      sub,
      subText: sub === null ? "" : showRounded(sub, round.total ?? undefined),
    };
  }).filter((g) => g.lines.length);
  const total = roundBy(round.total, ev.cost.계);
  const funcs = lg.boxes
    .filter((b) => b.kind === "function" && b.func)
    .map((b): FlowFunc => {
      const out = b.func!.output;
      const v = ev.ports[b.id]?.[out.name];
      return {
        box: b.id,
        name: b.name,
        unit: out.unit || b.unit,
        value: v,
        text:
          typeof v === "number"
            ? v.toLocaleString("ko-KR", { maximumFractionDigits: 6 })
            : plain(v),
      };
    });
  return {
    groups,
    total,
    totalText: showRounded(total, round.total ?? undefined),
    funcs,
    errors: ev.errors,
  };
}