findMatch method

RouteMatch? findMatch(Map<String, NyRouterRoute> routeMappings)

Find matching route and extract parameters

Implementation

RouteMatch? findMatch(Map<String, NyRouterRoute> routeMappings) {
  // Normalize the input path but keep leading slash
  final normalizedPath = _normalizePath(path);
  final pathSegments = normalizedPath.split('/');

  // Try each registered route
  for (final entry in routeMappings.entries) {
    final routePattern = _normalizePath(entry.key);
    final route = entry.value;
    final patternSegments = routePattern.split('/');

    // Quick check for segment count (including empty segments from leading slash)
    if (pathSegments.length != patternSegments.length) {
      continue;
    }

    final params = <String, String>{};
    var isMatch = true;

    // Check each segment
    for (var i = 0; i < patternSegments.length; i++) {
      final patternSegment = patternSegments[i];
      final pathSegment = pathSegments[i];

      // Skip empty segments from leading slash
      if (patternSegment.isEmpty && pathSegment.isEmpty) {
        continue;
      }

      if (patternSegment.startsWith('{') && patternSegment.endsWith('}')) {
        // Extract parameter
        final paramName =
            patternSegment.substring(1, patternSegment.length - 1);
        params[paramName] = pathSegment;
      } else if (patternSegment != pathSegment) {
        // Static segment doesn't match
        isMatch = false;
        break;
      }
    }

    if (isMatch) {
      return RouteMatch(
        pattern: entry.key, // Keep original pattern
        route: route,
        parameters: params,
      );
    }
  }

  return null;
}