class Yum

def method_missing(name)
  repo(name.to_s) if !name.nil?
end

def repo(repo)
  YumRepo.new(self, repo)
end

def repo_key(key)
  return key if key.nil?
  key.gsub('Repo-', '').downcase
end

def repos
  repositories.map { |repo| repo['id'] }
end

def repositories
  return @cache if defined?(@cache)
  # parse the repository data from yum
  # we cannot use -C, because this is not reliable and may lead to errors
  @command_result = inspec.command('yum -v repolist all')
  @content = @command_result.stdout
  @cache = []
  repo = {}
  in_repo = false
  @content.each_line do |line|
    # detect repo start
    in_repo = true if line =~ /^\s*Repo-id\s*:\s*(.*)\b/
    # detect repo end
    if line == "\n" && in_repo
      in_repo = false
      @cache.push(repo)
      repo = {}
    end
    # parse repo content
    if in_repo == true
      val = /^\s*([^:]*?)\s*:\s*(.*?)\s*$/.match(line)
      repo[repo_key(strip(val[1]))] = strip(val[2])
    end
  end
  @cache
end

def strip(value)
  value.strip if !value.nil?
end

def to_s
  'Yum Repository'
end