module LibsCatalog

# File lib/libs_catalog.rb, line 30
def apply_filter(names, filter)
  pattern = filter.to_s.strip
  return names if pattern.empty?

  glob = pattern.include?("*") ? pattern : "#{pattern}*"
  names.select { |name| File.fnmatch(glob, name, File::FNM_CASEFOLD) }
end

# File lib/libs_catalog.rb, line 13
def list(lib_dir:, filter: nil)
  pattern = File.join(lib_dir, "**", "*.rb")
  paths = Dir.glob(pattern).sort
  names = paths
          .reject { |path| path.include?(VENDOR_SEGMENT) }
          .map { |path| relative_name(path, lib_dir: lib_dir) }

  apply_filter(names, filter)
end

# File lib/libs_catalog.rb, line 23
def relative_name(path, lib_dir:)
  root = File.expand_path(lib_dir)
  rel = File.expand_path(path).sub(/\A#{Regexp.escape(root)}\/?/, "")
  rel.sub(/\.rb\z/, "")
end