module Fog
  module Compute
    class OpenStack
      # http://docs.openstack.org/api/openstack-compute/2/content/ProgramaticLimits.html
      #
      class Real
        def get_limits
          request(
            :expects  => 200,
            :method   => 'GET',
            :path     => '/limits.json'
          )
        end
      end

      class Mock
        def get_limits
          rate_limits = [
            { 'regex' => '.*',
              'limit' => [
                { 'next-available' => '2012-11-22T16:13:44Z',
                  'unit'           => 'MINUTE',
                  'verb'           => 'POST',
                  'remaining'      => 9,
                  'value'          => 10 },
                { 'next-available' => '2012-11-23T00:46:14Z',
                  'unit'           => 'MINUTE',
                  'verb'           => 'PUT',
                  'remaining'      => 10,
                  'value' => 10 },
                { 'next-available' => '2012-11-22T16:14:30Z',
                  'unit'           => 'MINUTE',
                  'verb'           => 'DELETE',
                  'remaining'      => 99,
                  'value'          => 100 } ],
                'uri' => '*' },
            { 'regex' => '^/servers',
              'limit' => [
                { 'next-available' => '2012-11-23T00:46:14Z',
                  'unit'           => 'DAY',
                  'verb'           => 'POST',
                  'remaining'      => 50,
                  'value'          => 50} ],
              'uri'=>'*/servers' },
            { 'regex' => '.*changes-since.*',
              'limit' => [
                { 'next-available' => '2012-11-23T00:46:14Z',
                  'unit'           => 'MINUTE',
                  'verb'           => 'GET',
                  'remaining'      => 3,
                  'value'          => 3 } ],
              'uri' => '*changes-since*' }
          ]

          absolute_limits = {
            # Max
            'maxServerMeta'            => 128,
            'maxTotalInstances'        => 10,
            'maxPersonality'           => 5,
            'maxImageMeta'             => 128,
            'maxPersonalitySize'       => 10240,
            'maxSecurityGroupRules'    => 20,
            'maxTotalKeypairs'         => 100,
            'maxSecurityGroups'        => 10,
            'maxTotalCores'            => 20,
            'maxTotalFloatingIps'      => 10,
            'maxTotalRAMSize'          => 51200,

            # Used
            'totalCoresUsed'           => -1,
            'totalRAMUsed'             => -2048,
            'totalInstancesUsed'       => -1,
            'totalSecurityGroupsUsed'  => 0,
            'totalFloatingIpsUsed'     => 0
          }

          Excon::Response.new(
            :status => 200,
            :body => {
              'limits' => {
                'rate'     => rate_limits,
                'absolute' => absolute_limits }
            }
          )
        end
      end
    end
  end
end