class UserAgent::Browsers::Opera

def self.extend?(agent)
  (agent.first && agent.first.product == 'Opera') ||
    (agent.application && agent.application.product == 'Opera') ||
      (agent.last && agent.last.product == 'OPR')
end

def browser
  'Opera'
end

def localization
  if application.comment.nil?
    nil
  elsif platform == "Macintosh"
    application.comment[3]
  else
    application.comment[2]
  end
end

def mini?
  /Opera Mini/ === application
end

def mobile?
  mini?
end

def os
  if application.comment.nil?
    nil
  elsif application.comment[0] =~ /Windows/
    OperatingSystems.normalize_os(application.comment[0])
  else
    application.comment[1]
  end
end

def platform
  if application.comment.nil?
    nil
  elsif application.comment[0] =~ /Windows/
    "Windows"
  else
    application.comment[0]
  end
end

def security
  if application.comment.nil?
    :strong
  elsif platform == "Macintosh"
    Security[application.comment[2]]
  elsif mini?
    Security[application.comment[-2]]
  else
    Security[application.comment[1]]
  end
end

def version
  if mini?
    application.comment.detect{|c| c =~ /Opera Mini/}[/Opera Mini\/([\d\.]+)/, 1] rescue Version.new
  elsif product = detect_product('Version')
    product.version
  else
    super
  end
end