const EstIssues = (() => {
  let page = 0;
  const grouped = new Set(["HeadMainDat", "CostMainDat", "MachMainDat"]);
  const kinds = {
    5: "StuffcDat",
    6: "LaborcDat",
    21: "SilJukDat",
    101: "EstiMateDat",
    103: "HeadMainDat",
    104: "CostMainDat",
    105: "MachMainDat",
  };
  function scan(project) {
    const issues = [],
      sources = new Map();
    for (const [kind, table] of Object.entries(kinds)) {
      const codes = new Map();
      (project.tables[table] || []).forEach((row, index) => {
        if (!row.Code || (grouped.has(table) && !(Number(row.Index) > 0))) return;
        const list = codes.get(String(row.Code)) || [];
        list.push({ row, index });
        codes.set(String(row.Code), list);
      });
      sources.set(Number(kind), codes);
      for (const [code, list] of codes)
        if (list.length > 1)
          for (const { index } of list) issues.push({ table, index, code, message: "코드 중복" });
    }
    for (const table of ["EstMainDat", "HeadMainDat", "MachMainDat"]) {
      (project.tables[table] || []).forEach((row, index) => {
        if (Number(row.Level) > 0 || Number(row.Index) > 0 || !row.Code) return;
        const codes = sources.get(Number(row.LinkIndex));
        if (!codes) return;
        const matches = codes.get(String(row.Code)) || [];
        if (!matches.length)
          issues.push({ table, index, code: row.Code, message: "연결 자료 없음" });
        else if (matches.length > 1)
          issues.push({ table, index, code: row.Code, message: "연결 코드 중복" });
        else
          for (const field of ["Name", "Size"]) {
            const a = row[field],
              b = matches[0].row[field];
            if (a && b && EstNative.normalize(a) !== EstNative.normalize(b))
              issues.push({
                table,
                index,
                code: row.Code,
                message: field === "Name" ? "연결 품명 차이" : "연결 규격 차이",
              });
          }
      });
    }
    const costs = project.tables.CostMainDat || [],
      costGroups = EstNative.groups(costs);
    for (const message of project.calculation?.errors || []) {
      const text = String(message),
        match = text.match(/^(.+):(\d+) /),
        code = match?.[1],
        group = code && costGroups.get(code),
        offset = match ? Number(match[2]) - 1 : -1,
        unique = group && sources.get(104)?.get(code)?.length === 1,
        index = unique && offset >= 0 && offset < group.rows.length ? group.start + offset : -1;
      issues.push({
        table: index >= 0 ? "CostMainDat" : "",
        index,
        code: index >= 0 ? code : "",
        message: text,
      });
    }
    return issues;
  }
  function render() {
    const { state, esc, byId, titles } = EstApp,
      issues = scan(state.project);
    page = Math.max(0, Math.min(page, Math.ceil(issues.length / 100) - 1));
    const rows = issues.slice(page * 100, page * 100 + 100);
    byId("work-content").innerHTML =
      `<div class="business-tools"><b>자료 오류 검색</b><span>${issues.length}건 · ${page + 1}/${Math.max(1, Math.ceil(issues.length / 100))}쪽</span><button data-issue-page="-1" ${page === 0 ? "disabled" : ""}>이전</button><button data-issue-page="1" ${(page + 1) * 100 >= issues.length ? "disabled" : ""}>다음</button></div><p>연결 품명·규격 차이는 확인이 필요한 항목으로 표시합니다.</p><table class="sheet"><thead><tr><th>자료</th><th>행</th><th>코드</th><th>내용</th><th>이동</th></tr></thead><tbody>${rows.map((item) => `<tr><td>${esc(titles[item.table] || item.table || "전체 계산")}</td><td>${item.index >= 0 ? item.index + 1 : ""}</td><td>${esc(item.code)}</td><td>${esc(item.message)}</td><td>${item.table ? `<button data-issue-table="${esc(item.table)}" data-issue-row="${item.index}">행 열기</button>` : ""}</td></tr>`).join("")}</tbody></table>`;
  }
  function install() {
    document.addEventListener("click", (event) => {
      const step = event.target.closest("[data-issue-page]");
      if (step) {
        page += Number(step.dataset.issuePage);
        render();
        return;
      }
      const node = event.target.closest("[data-issue-table]");
      if (!node) return;
      const table = node.dataset.issueTable,
        index = Number(node.dataset.issueRow),
        rows = EstApp.state.project.tables[table] || [];
      if (!rows[index]) return;
      let group = "";
      if (grouped.has(table))
        for (const [code, item] of EstNative.groups(rows))
          if (index >= item.start && index < item.start + item.rows.length) {
            group = code;
            break;
          }
      if (grouped.has(table) && !group) {
        EstApp.state.notice = "묶음 코드가 중복되거나 해당 행의 묶음이 없어 이동할 수 없습니다.";
        EstApp.render();
        return;
      }
      EstApp.navigate(table, group);
      const visible = EstApp.visibleRows(),
        position = visible.findIndex((item) => item.index === index);
      if (position >= 0) EstApp.state.page = Math.floor(position / 100);
      EstApp.state.selection = new Set([index]);
      EstApp.render();
    });
  }
  return { scan, render, install };
})();