/* =============================================================================
 * M01_MasterData_Machine_Api.ts
 * M01 기계 화면 서버 호출(PLAN 821-2) — 양식 목록 · 시간당 경비 · 쓰는 곳 · 비슷한 기계 찾기 · 한 줄.
 * 서버 = `M01_MasterData_Machine.py` · 시스템 관리자만.
 * ========================================================================== */

import { API_BASE_URL } from "@config/config_frontend";
import type { MachinePick } from "@ui/ui_template_machine_form";
import type { Row } from "./M01_MasterData_Api_Fetch";

export interface MachineLists {
  fuels: MachinePick[];
  jobs: MachinePick[];
  power: number;
  hour: number;
  books: string[];
  /** 구분 → 원문 */
  groups: Record<string, string>;
}

export interface MachineHourly {
  노무비?: number;
  재료비?: number;
  경비?: number;
  계?: number;
  reason?: string;
}

async function get<T>(path: string, params: Record<string, string> = {}): Promise<T> {
  const query = new URLSearchParams(params);
  const res = await fetch(`${API_BASE_URL}/m01/machine${path}?${query}`, {
    credentials: "include",
  });
  const body = (await res.json()) as T & { detail?: unknown };
  if (!res.ok) throw new Error(String(body.detail ?? `HTTP ${res.status}`));
  return body;
}

let lists: Promise<MachineLists> | null = null;
/** 한 번 받아 둠(페이지 다시 그리면 다시 받음) */
export const fetchMachineLists = (fresh = false): Promise<MachineLists> => {
  if (!lists || fresh)
    lists = get<MachineLists>("/lists").catch((e) => ((lists = null), Promise.reject(e)));
  return lists;
};

export const fetchMachineHourly = (keys: string[]): Promise<Record<string, MachineHourly>> =>
  keys.length ? get("/hourly", { keys: keys.join(",") }) : Promise.resolve({});

export const fetchMachineUses = async (key: string): Promise<string[]> =>
  (await get<{ uses: string[] }>("/uses", { key })).uses;

export const findMachines = async (q: string): Promise<Row[]> =>
  (await get<{ rows: Row[] }>("/find", { q })).rows;

export const fetchMachineRow = (key: string): Promise<{ version: string; row: Row }> =>
  get("/row", { key });