class Rufo::DotFile

def find_in(dir)
  @cache.fetch(dir) do
    @cache[dir] = internal_find_in(dir)
  end
end

def get_config_in(dir)
  dot_rufo = find_in(dir)
  if dot_rufo
    return parse(dot_rufo)
  end
end

def initialize
  @cache = {}
end

def internal_find_in(dir)
  dir = File.expand_path(dir)
  file = File.join(dir, ".rufo")
  if File.exist?(file)
    return File.read(file)
  end
  parent_dir = File.dirname(dir)
  return if parent_dir == dir
  find_in(parent_dir)
end

def parse(file_contents)
  file_contents.lines
               .map { |s| s.strip.split(/\s+/, 2) }
               .each_with_object({}) do |(name, value), acc|
    value ||= ""
    if value.start_with?(":")
      value = value[1..-1].to_sym
    elsif value == "true"
      value = true
    elsif value == "false"
      value = false
    elsif value.start_with?("[")
      value = value[1..-2].split(",")
    else
      $stderr.puts "Unknown config value=#{value.inspect} for #{name.inspect}"
      next
    end
    acc[name.to_sym] = value
  end
end