renderGraph method

Implementation

String renderGraph(ConceptualGraph graph) {
  final buf = StringBuffer();
  buf.writeln('── Conceptual Graph ─────────────────────────────');
  buf.writeln('   Nodes: ${graph.nodeCount} | Edges: ${graph.edgeCount}');
  buf.writeln();

  for (final node in graph.getAllNodes().take(20)) {
    buf.writeln('  [${node.id.substring(0, 8)}] "${node.concept.content}"');
    for (final edge in node.edges.values.take(5)) {
      final target = graph.getNode(edge.targetId);
      final label = target?.concept.content ?? edge.targetId;
      buf.writeln(
          '       ──${edge.relationshipType.name}(${edge.strength.toStringAsFixed(2)})──▶ '
          '"$label"');
    }
  }

  if (graph.nodeCount > 20) {
    buf.writeln('  ... and ${graph.nodeCount - 20} more nodes');
  }

  return buf.toString();
}