// Enhanced mermaid conversion script that preserves newlines for all chart types
export const code = async (inputs) => {
  const raw = String(inputs.diagram || "").trim();
  if (!raw) throw new Error("No Mermaid input provided");
  
  // Normalize line endings first
  const normalizedDiagram = raw
    .replace(/\r\n/g, '\n')  // Convert Windows line endings
    .replace(/\r/g, '\n');   // Convert old Mac line endings
  
  // Base64 encode to preserve exact content including newlines
  const base64Encoded = Buffer.from(normalizedDiagram, 'utf8').toString('base64');
  
  // Create a wrapper that tells the server this is base64 encoded
  const wrappedDiagram = `%%{init: {"base64": true}}%%\n${base64Encoded}`;
  
  console.log("Original diagram length:", normalizedDiagram.length);
  console.log("Original has newlines:", normalizedDiagram.includes('\n'));
  console.log("Base64 encoded length:", base64Encoded.length);
  console.log("Wrapped diagram:", wrappedDiagram);
  
  return { rawDsl: wrappedDiagram };
};