import fs from "node:fs/promises";
import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";

const inputPath = "C:/Users/milu/OneDrive - Exxeta/Dokumente/Assessor Zeiterfassung/ASSESSOR_Zeiterfassung_Sep2026_Jul2027_Form_wie_vorher.xlsx";
const outputDir = "C:/Users/milu/OneDrive - Exxeta/Dokumente/VS CODE/ASSESSOR-2-5/outputs/01a089e9-f688-7f21-87c9-db223e98841f";

const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(inputPath));
const overview = await workbook.inspect({
  kind: "workbook,sheet,table,definedName,drawing",
  maxChars: 12000,
  tableMaxRows: 8,
  tableMaxCols: 10,
  tableMaxCellChars: 100,
});
console.log(overview.ndjson);

const sheets = workbook.worksheets.items;
for (const sheet of sheets) {
  const used = sheet.getUsedRange();
  console.log(`SHEET\t${sheet.name}\t${used?.address ?? "(empty)"}`);
  if (used) {
    const region = await workbook.inspect({
      kind: "region,formula,computedStyle",
      sheetId: sheet.name,
      range: used.address,
      maxChars: 10000,
      tableMaxRows: 45,
      tableMaxCols: 12,
      tableMaxCellChars: 120,
      options: { maxResults: 120 },
    });
    console.log(region.ndjson);
    const preview = await workbook.render({ sheetName: sheet.name, autoCrop: "all", scale: 1, format: "png" });
    const safe = sheet.name.replace(/[^a-z0-9_-]+/gi, "_");
    await fs.writeFile(`${outputDir}/preview_${safe}.png`, new Uint8Array(await preview.arrayBuffer()));
  }
}