{-# 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.DirectoryService.DescribeTrusts
-- Copyright   : (c) 2013-2018 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Obtains information about the trust relationships for this account.
--
--
-- If no input parameters are provided, such as DirectoryId or TrustIds, this request describes all the trust relationships belonging to the account.
--
module Network.AWS.DirectoryService.DescribeTrusts
    (
    -- * Creating a Request
      describeTrusts
    , DescribeTrusts
    -- * Request Lenses
    , dtDirectoryId
    , dtNextToken
    , dtTrustIds
    , dtLimit

    -- * Destructuring the Response
    , describeTrustsResponse
    , DescribeTrustsResponse
    -- * Response Lenses
    , dtrsNextToken
    , dtrsTrusts
    , dtrsResponseStatus
    ) where

import Network.AWS.DirectoryService.Types
import Network.AWS.DirectoryService.Types.Product
import Network.AWS.Lens
import Network.AWS.Prelude
import Network.AWS.Request
import Network.AWS.Response

-- | Describes the trust relationships for a particular Microsoft AD in the AWS cloud. If no input parameters are are provided, such as directory ID or trust ID, this request describes all the trust relationships.
--
--
--
-- /See:/ 'describeTrusts' smart constructor.
data DescribeTrusts = DescribeTrusts'
  { _dtDirectoryId :: !(Maybe Text)
  , _dtNextToken   :: !(Maybe Text)
  , _dtTrustIds    :: !(Maybe [Text])
  , _dtLimit       :: !(Maybe Nat)
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeTrusts' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dtDirectoryId' - The Directory ID of the AWS directory that is a part of the requested trust relationship.
--
-- * 'dtNextToken' - The /DescribeTrustsResult.NextToken/ value from a previous call to 'DescribeTrusts' . Pass null if this is the first call.
--
-- * 'dtTrustIds' - A list of identifiers of the trust relationships for which to obtain the information. If this member is null, all trust relationships that belong to the current account are returned. An empty list results in an @InvalidParameterException@ being thrown.
--
-- * 'dtLimit' - The maximum number of objects to return.
describeTrusts
    :: DescribeTrusts
describeTrusts =
  DescribeTrusts'
    { _dtDirectoryId = Nothing
    , _dtNextToken = Nothing
    , _dtTrustIds = Nothing
    , _dtLimit = Nothing
    }


-- | The Directory ID of the AWS directory that is a part of the requested trust relationship.
dtDirectoryId :: Lens' DescribeTrusts (Maybe Text)
dtDirectoryId = lens _dtDirectoryId (\ s a -> s{_dtDirectoryId = a})

-- | The /DescribeTrustsResult.NextToken/ value from a previous call to 'DescribeTrusts' . Pass null if this is the first call.
dtNextToken :: Lens' DescribeTrusts (Maybe Text)
dtNextToken = lens _dtNextToken (\ s a -> s{_dtNextToken = a})

-- | A list of identifiers of the trust relationships for which to obtain the information. If this member is null, all trust relationships that belong to the current account are returned. An empty list results in an @InvalidParameterException@ being thrown.
dtTrustIds :: Lens' DescribeTrusts [Text]
dtTrustIds = lens _dtTrustIds (\ s a -> s{_dtTrustIds = a}) . _Default . _Coerce

-- | The maximum number of objects to return.
dtLimit :: Lens' DescribeTrusts (Maybe Natural)
dtLimit = lens _dtLimit (\ s a -> s{_dtLimit = a}) . mapping _Nat

instance AWSRequest DescribeTrusts where
        type Rs DescribeTrusts = DescribeTrustsResponse
        request = postJSON directoryService
        response
          = receiveJSON
              (\ s h x ->
                 DescribeTrustsResponse' <$>
                   (x .?> "NextToken") <*> (x .?> "Trusts" .!@ mempty)
                     <*> (pure (fromEnum s)))

instance Hashable DescribeTrusts where

instance NFData DescribeTrusts where

instance ToHeaders DescribeTrusts where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("DirectoryService_20150416.DescribeTrusts" ::
                       ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON DescribeTrusts where
        toJSON DescribeTrusts'{..}
          = object
              (catMaybes
                 [("DirectoryId" .=) <$> _dtDirectoryId,
                  ("NextToken" .=) <$> _dtNextToken,
                  ("TrustIds" .=) <$> _dtTrustIds,
                  ("Limit" .=) <$> _dtLimit])

instance ToPath DescribeTrusts where
        toPath = const "/"

instance ToQuery DescribeTrusts where
        toQuery = const mempty

-- | The result of a DescribeTrust request.
--
--
--
-- /See:/ 'describeTrustsResponse' smart constructor.
data DescribeTrustsResponse = DescribeTrustsResponse'
  { _dtrsNextToken      :: !(Maybe Text)
  , _dtrsTrusts         :: !(Maybe [Trust])
  , _dtrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeTrustsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dtrsNextToken' - If not null, more results are available. Pass this value for the /NextToken/ parameter in a subsequent call to 'DescribeTrusts' to retrieve the next set of items.
--
-- * 'dtrsTrusts' - The list of Trust objects that were retrieved. It is possible that this list contains less than the number of items specified in the /Limit/ member of the request. This occurs if there are less than the requested number of items left to retrieve, or if the limitations of the operation have been exceeded.
--
-- * 'dtrsResponseStatus' - -- | The response status code.
describeTrustsResponse
    :: Int -- ^ 'dtrsResponseStatus'
    -> DescribeTrustsResponse
describeTrustsResponse pResponseStatus_ =
  DescribeTrustsResponse'
    { _dtrsNextToken = Nothing
    , _dtrsTrusts = Nothing
    , _dtrsResponseStatus = pResponseStatus_
    }


-- | If not null, more results are available. Pass this value for the /NextToken/ parameter in a subsequent call to 'DescribeTrusts' to retrieve the next set of items.
dtrsNextToken :: Lens' DescribeTrustsResponse (Maybe Text)
dtrsNextToken = lens _dtrsNextToken (\ s a -> s{_dtrsNextToken = a})

-- | The list of Trust objects that were retrieved. It is possible that this list contains less than the number of items specified in the /Limit/ member of the request. This occurs if there are less than the requested number of items left to retrieve, or if the limitations of the operation have been exceeded.
dtrsTrusts :: Lens' DescribeTrustsResponse [Trust]
dtrsTrusts = lens _dtrsTrusts (\ s a -> s{_dtrsTrusts = a}) . _Default . _Coerce

-- | -- | The response status code.
dtrsResponseStatus :: Lens' DescribeTrustsResponse Int
dtrsResponseStatus = lens _dtrsResponseStatus (\ s a -> s{_dtrsResponseStatus = a})

instance NFData DescribeTrustsResponse where