register method

void register(HttpMethod method, String path, Function handler)

Register a route handler

Implementation

void register(HttpMethod method, String path, Function handler) {
  // Normalize path: ensure start with / and remove trailing /
  if (!path.startsWith('/')) path = '/$path';
  if (path.length > 1 && path.endsWith('/')) {
    path = path.substring(0, path.length - 1);
  }

  final segments = path.split('/').where((s) => s.isNotEmpty).toList();
  var current = _root;

  for (final segment in segments) {
    if (segment.startsWith(':')) {
      // Parameter node
      // In this simple trie, we assume only one param node per level for simplicity
      // Ideally we check if existing child is param or not
      final paramName = segment.substring(1);

      // Find or create param child
      // For now, let's use a special key for storage, e.g., '?'
      if (!current.children.containsKey('?')) {
        final node = TrieNode('?');
        node.isParam = true;
        node.paramName = paramName;
        current.children['?'] = node;
      }
      current = current.children['?']!;
    } else {
      // Static node
      current = current.children.putIfAbsent(
        segment,
        () => TrieNode(segment),
      );
    }
  }

  current.handlers[method] = handler;
}