class Bundler::Audit::Database

def self.path
  if File.directory?(USER_PATH)
    t1 = Dir.chdir(USER_PATH) { Time.parse(`git log --date=iso8601 --pretty="%cd" -1`).utc }
    t2 = VENDORED_TIMESTAMP
    if t1 >= t2 then USER_PATH
    else             VENDORED_PATH
    end
  else
    VENDORED_PATH
  end
end

def self.update!(options={})
  unless (options.keys - [:quiet]).empty?
    raise(ArgumentError,"Invalid option(s)")
  end
  if File.directory?(USER_PATH)
    if File.directory?(File.join(USER_PATH, ".git"))
      Dir.chdir(USER_PATH) do
        command = %w(git pull --no-rebase)
        command << '--quiet' if options[:quiet]
        command << 'origin' << 'master'
        system *command
      end
    end
  else
    command = %w(git clone)
    command << '--quiet' if options[:quiet]
    command << URL << USER_PATH
    system *command
  end
end

def advisories(&block)
  return enum_for(__method__) unless block_given?
  each_advisory_path do |path|
    yield Advisory.load(path)
  end
end

def advisories_for(name)
  return enum_for(__method__,name) unless block_given?
  each_advisory_path_for(name) do |path|
    yield Advisory.load(path)
  end
end

def check_gem(gem)
  return enum_for(__method__,gem) unless block_given?
  advisories_for(gem.name) do |advisory|
    if advisory.vulnerable?(gem.version)
      yield advisory
    end
  end
end

def each_advisory_path(&block)
  Dir.glob(File.join(@path,'gems','*','*.yml'),&block)
end

def each_advisory_path_for(name,&block)
  Dir.glob(File.join(@path,'gems',name,'*.yml'),&block)
end

def initialize(path=self.class.path)
  unless File.directory?(path)
    raise(ArgumentError,"#{path.dump} is not a directory")
  end
  @path = path
end

def inspect
  "#<#{self.class}:#{self}>"
end

def size
  each_advisory_path.count
end

def to_s
  @path
end