export function createMinimalPdf(
  text = "Visual diff fixture",
  pageWidth = 595,
  pageHeight = 842,
): Uint8Array {
  const escapedText = text.replaceAll("\\", "\\\\").replaceAll("(", "\\(").replaceAll(")", "\\)");
  const content = `BT /F1 18 Tf 72 ${pageHeight - 72} Td (${escapedText}) Tj ET`;
  const objects = [
    "<< /Type /Catalog /Pages 2 0 R >>",
    "<< /Type /Pages /Kids [3 0 R] /Count 1 >>",
    `<< /Type /Page /Parent 2 0 R /MediaBox [0 0 ${pageWidth} ${pageHeight}] /Resources << /Font << /F1 4 0 R >> >> /Contents 5 0 R >>`,
    "<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>",
    `<< /Length ${content.length} >>\nstream\n${content}\nendstream`,
  ];
  let pdf = "%PDF-1.4\n";
  const offsets = [0];
  for (const [index, object] of objects.entries()) {
    offsets.push(pdf.length);
    pdf += `${index + 1} 0 obj\n${object}\nendobj\n`;
  }
  const xrefOffset = pdf.length;
  pdf += `xref\n0 ${objects.length + 1}\n`;
  pdf += "0000000000 65535 f \n";
  for (const offset of offsets.slice(1)) {
    pdf += `${String(offset).padStart(10, "0")} 00000 n \n`;
  }
  pdf += `trailer\n<< /Size ${objects.length + 1} /Root 1 0 R >>\n`;
  pdf += `startxref\n${xrefOffset}\n%%EOF\n`;
  return new TextEncoder().encode(pdf);
}