test-debug.mts

import JSZip from 'jszip';
import { readFileSync } from 'fs';
import { inflateRawSync } from 'zlib';
import { decodeBinarySchema, compileSchema } from 'kiwi-schema';

const buf = readFileSync('/Users/deepaksingh/Downloads/fig-mcp/test.fig');
const zip = await JSZip.loadAsync(buf);
console.log('ZIP files:', Object.keys(zip.files).slice(0, 5));
const canvasFig = zip.file('canvas.fig');
console.log('canvas.fig found:', !!canvasFig);
if (canvasFig) {
  const data = await canvasFig.async('uint8array');
  console.log('canvas.fig size:', data.length);
  console.log('canvas.fig magic:', String.fromCharCode(...data.slice(0, 8)));
  
  // Test archive parsing
  const view = new DataView(data.buffer, data.byteOffset, data.byteLength);
  let offset = 8 + 4; // skip "fig-kiwi" + version uint32
  const chunks: Uint8Array[] = [];
  while (offset + 4 <= data.length) {
    const size = view.getUint32(offset, true);
    offset += 4;
    chunks.push(data.slice(offset, offset + size));
    offset += size;
  }
  console.log('Chunks:', chunks.length, chunks.map(c => c.length));
  
  if (chunks.length >= 2) {
    const rawSchema = inflateRawSync(chunks[0]);
    const rawData = inflateRawSync(chunks[1]);
    console.log('Schema size:', rawSchema.length, 'Data size:', rawData.length);
    const schema = decodeBinarySchema(rawSchema);
    console.log('Schema decoded OK');
    const compiled = compileSchema(schema) as any;
    const msg = compiled.decodeMessage(rawData) as any;
    console.log('Message keys:', Object.keys(msg));
    const nc = msg.nodeChanges ?? [];
    console.log('NodeChanges count:', nc.length);
    const types = [...new Set(nc.map((n: any) => n.type))];
    console.log('Node types:', types);
  }
}