{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
{-# LANGUAGE OverloadedStrings  #-}
{-# LANGUAGE RecordWildCards    #-}
{-# LANGUAGE TypeFamilies       #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-binds   #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Network.AWS.OpsWorks.DescribeElasticIPs
-- Copyright   : (c) 2013-2015 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Describes
-- <http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html Elastic IP addresses>.
--
-- You must specify at least one of the parameters.
--
-- __Required Permissions__: To use this action, an IAM user must have a
-- Show, Deploy, or Manage permissions level for the stack, or an attached
-- policy that explicitly grants permissions. For more information on user
-- permissions, see
-- <http://docs.aws.amazon.com/opsworks/latest/userguide/opsworks-security-users.html Managing User Permissions>.
--
-- /See:/ <http://docs.aws.amazon.com/opsworks/latest/APIReference/API_DescribeElasticIPs.html AWS API Reference> for DescribeElasticIPs.
module Network.AWS.OpsWorks.DescribeElasticIPs
    (
    -- * Creating a Request
      describeElasticIPs
    , DescribeElasticIPs
    -- * Request Lenses
    , deiInstanceId
    , deiIPs
    , deiStackId

    -- * Destructuring the Response
    , describeElasticIPsResponse
    , DescribeElasticIPsResponse
    -- * Response Lenses
    , deirsElasticIPs
    , deirsResponseStatus
    ) where

import           Network.AWS.OpsWorks.Types
import           Network.AWS.OpsWorks.Types.Product
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | /See:/ 'describeElasticIPs' smart constructor.
data DescribeElasticIPs = DescribeElasticIPs'
    { _deiInstanceId :: !(Maybe Text)
    , _deiIPs        :: !(Maybe [Text])
    , _deiStackId    :: !(Maybe Text)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeElasticIPs' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'deiInstanceId'
--
-- * 'deiIPs'
--
-- * 'deiStackId'
describeElasticIPs
    :: DescribeElasticIPs
describeElasticIPs =
    DescribeElasticIPs'
    { _deiInstanceId = Nothing
    , _deiIPs = Nothing
    , _deiStackId = Nothing
    }

-- | The instance ID. If you include this parameter, 'DescribeElasticIps'
-- returns a description of the Elastic IP addresses associated with the
-- specified instance.
deiInstanceId :: Lens' DescribeElasticIPs (Maybe Text)
deiInstanceId = lens _deiInstanceId (\ s a -> s{_deiInstanceId = a});

-- | An array of Elastic IP addresses to be described. If you include this
-- parameter, 'DescribeElasticIps' returns a description of the specified
-- Elastic IP addresses. Otherwise, it returns a description of every
-- Elastic IP address.
deiIPs :: Lens' DescribeElasticIPs [Text]
deiIPs = lens _deiIPs (\ s a -> s{_deiIPs = a}) . _Default . _Coerce;

-- | A stack ID. If you include this parameter, 'DescribeElasticIps' returns
-- a description of the Elastic IP addresses that are registered with the
-- specified stack.
deiStackId :: Lens' DescribeElasticIPs (Maybe Text)
deiStackId = lens _deiStackId (\ s a -> s{_deiStackId = a});

instance AWSRequest DescribeElasticIPs where
        type Rs DescribeElasticIPs =
             DescribeElasticIPsResponse
        request = postJSON opsWorks
        response
          = receiveJSON
              (\ s h x ->
                 DescribeElasticIPsResponse' <$>
                   (x .?> "ElasticIps" .!@ mempty) <*>
                     (pure (fromEnum s)))

instance ToHeaders DescribeElasticIPs where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("OpsWorks_20130218.DescribeElasticIps" ::
                       ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON DescribeElasticIPs where
        toJSON DescribeElasticIPs'{..}
          = object
              (catMaybes
                 [("InstanceId" .=) <$> _deiInstanceId,
                  ("Ips" .=) <$> _deiIPs,
                  ("StackId" .=) <$> _deiStackId])

instance ToPath DescribeElasticIPs where
        toPath = const "/"

instance ToQuery DescribeElasticIPs where
        toQuery = const mempty

-- | Contains the response to a 'DescribeElasticIps' request.
--
-- /See:/ 'describeElasticIPsResponse' smart constructor.
data DescribeElasticIPsResponse = DescribeElasticIPsResponse'
    { _deirsElasticIPs     :: !(Maybe [ElasticIP])
    , _deirsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeElasticIPsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'deirsElasticIPs'
--
-- * 'deirsResponseStatus'
describeElasticIPsResponse
    :: Int -- ^ 'deirsResponseStatus'
    -> DescribeElasticIPsResponse
describeElasticIPsResponse pResponseStatus_ =
    DescribeElasticIPsResponse'
    { _deirsElasticIPs = Nothing
    , _deirsResponseStatus = pResponseStatus_
    }

-- | An 'ElasticIps' object that describes the specified Elastic IP
-- addresses.
deirsElasticIPs :: Lens' DescribeElasticIPsResponse [ElasticIP]
deirsElasticIPs = lens _deirsElasticIPs (\ s a -> s{_deirsElasticIPs = a}) . _Default . _Coerce;

-- | The response status code.
deirsResponseStatus :: Lens' DescribeElasticIPsResponse Int
deirsResponseStatus = lens _deirsResponseStatus (\ s a -> s{_deirsResponseStatus = a});