// 원본 「JDLExcel과 단가비교」(ActionJDLCompare, 숨은 단축키 Ctrl+Alt+J → TfrmJDLExcelCompare) — 일위대가·단가산출·기계경비 호표마다
// Excel 의 코드 열에서 그 코드를 품은 셀(Pos(코드, 셀) > 0)을 1행~(호표 수+50)행 안에서 찾아 같은 행 합계 열 값과 TC 를 비교한다.
// 차이(|TC − Excel|)가 있으면 표시, 못 찾으면 「없음」. 자료는 바꾸지 않는다(보기 전용). Excel 은 .xlsx·.xls 모두.
const EstJdlCompare = (() => {
  const TABLES = [
    ["HeadTitleDat", "일위대가"],
    ["CostTitleDat", "단가산출"],
    ["MachTitleDat", "기계경비"],
  ];
  function compare(rows, table, codeCol, totalCol) {
    const limit = rows.length + 50;
    return rows
      .filter((r) => String(r.Code ?? "").trim())
      .map((r) => {
        const code = String(r.Code).trim();
        let found = null;
        for (let i = 0; i < Math.min(limit, table.length); i++) {
          const cell = table[i]?.[codeCol];
          if (cell != null && String(cell).includes(code)) {
            found = Number(String(table[i][totalCol] ?? "").replace(/,/g, "")) || 0;
            break;
          }
        }
        const tc = Number(r.TC) || 0;
        return {
          Code: code,
          Name: r.Name ?? "",
          Size: r.Size ?? "",
          Unite: r.Unite ?? "",
          TC: tc,
          OTC: found,
          GN: found == null ? null : Math.abs(tc - found),
          Checked: found == null || Math.abs(tc - found) > 1e-9,
        };
      });
  }
  // .xls(BIFF) 셀 → 행 배열
  function xlsTables(sheets) {
    const out = {};
    for (const s of sheets) {
      const table = [];
      for (const [k, c] of Object.entries(s.cells)) {
        const [r, col] = k.split(",").map(Number);
        (table[r] ||= [])[col] = c.value;
      }
      out[s.name] = table;
    }
    return out;
  }

  function form(state) {
    const c = (state.jdlCompare ||= {
        tab: 0,
        sheet: 1,
        code: "A",
        total: "H",
        tables: null,
        result: [],
      }),
      { esc, number } = EstApp,
      diff = c.result.filter((r) => r.Checked).length;
    EstApp.showDialog(
      "JDL엑셀 단가 비교",
      `<div class="business-tools">${TABLES.map(([, l], i) => `<button data-action="jdl-compare-tab" data-i="${i}"${i === c.tab ? ' style="font-weight:bold"' : ""}>${l}</button>`).join("")}</div><div class="form-fields"><label>시트번호<input name="jc-sheet" type="number" min="1" value="${c.sheet}"></label><label>코드칼럼<input name="jc-code" value="${esc(c.code)}" size="3"></label><label>합계셀칼럼<input name="jc-total" value="${esc(c.total)}" size="3"></label></div><button data-action="jdl-compare-open">엑셀파일열기</button> <button data-action="jdl-compare-run">검  색</button> ${c.tables ? `시트 ${Object.keys(c.tables).length}개` : "Excel 을 여세요"} · 다른 금액·없음 ${diff}건<div style="max-height:380px;overflow:auto"><table class="sheet"><thead><tr><th>코드</th><th>품명</th><th>규격</th><th>단위</th><th>EST 금액</th><th>Excel 금액</th><th>차이</th></tr></thead><tbody>${c.result.map((r) => `<tr${r.Checked ? ' style="background:#fde2e2"' : ""}><td>${esc(r.Code)}</td><td style="text-align:left">${esc(r.Name)}</td><td>${esc(r.Size)}</td><td>${esc(r.Unite)}</td><td>${number(r.TC)}</td><td>${r.OTC == null ? "없음" : number(r.OTC)}</td><td>${r.GN == null ? "" : number(r.GN)}</td></tr>`).join("")}</tbody></table></div>`,
    );
  }
  function read(c) {
    const v = (n) => document.querySelector(`#dialog-content [name="${n}"]`)?.value;
    c.sheet = Math.max(1, Number(v("jc-sheet")) || 1);
    c.code = String(v("jc-code") || "A").toUpperCase();
    c.total = String(v("jc-total") || "H").toUpperCase();
  }
  async function run(name, state, node) {
    if (name === "jdl-compare") return form(state);
    const c = state.jdlCompare;
    read(c);
    if (name === "jdl-compare-tab") {
      c.tab = Number(node.dataset.i);
      c.result = [];
    } else if (name === "jdl-compare-open") {
      const input = document.createElement("input");
      input.type = "file";
      input.accept = ".xlsx,.xls";
      input.addEventListener("change", async () => {
        try {
          const file = input.files[0];
          if (!file) return;
          const body = await file.arrayBuffer();
          c.tables = /\.xls$/i.test(file.name)
            ? xlsTables(await EstApp.api("/api/read-xls", { method: "POST", body }))
            : EstExcelMap.sheetTables(
                await EstApp.api("/api/import-xlsx", { method: "POST", body }),
              );
        } catch (error) {
          state.notice = error.message;
        }
        form(state);
      });
      return input.click();
    } else if (name === "jdl-compare-run") {
      if (!c.tables) throw Error("엑셀파일을 먼저 여세요.");
      const table = Object.values(c.tables)[c.sheet - 1];
      if (!table) throw Error(`시트 ${c.sheet} 이 없습니다.`);
      const col = (x) => EstExcelMap.columnIndex(x);
      c.result = compare(
        state.project.tables[TABLES[c.tab][0]] || [],
        table,
        col(c.code),
        col(c.total),
      );
    }
    form(state);
  }
  const names = new Set(["jdl-compare", "jdl-compare-tab", "jdl-compare-open", "jdl-compare-run"]);
  function handle(name, state, node) {
    if (!names.has(name)) return false;
    run(name, state, node).catch((error) => {
      state.notice = error.message;
      EstApp.render();
    });
    return true;
  }
  return { compare, xlsTables, handle };
})();