{-# 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.SDB.PutAttributes
-- 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)
--
-- The PutAttributes operation creates or replaces attributes in an item.
-- The client may specify new attributes using a combination of the
-- 'Attribute.X.Name' and 'Attribute.X.Value' parameters. The client
-- specifies the first attribute by the parameters 'Attribute.0.Name' and
-- 'Attribute.0.Value', the second attribute by the parameters
-- 'Attribute.1.Name' and 'Attribute.1.Value', and so on.
--
-- Attributes are uniquely identified in an item by their name\/value
-- combination. For example, a single item can have the attributes
-- '{ \"first_name\", \"first_value\" }' and
-- '{ \"first_name\", second_value\" }'. However, it cannot have two
-- attribute instances where both the 'Attribute.X.Name' and
-- 'Attribute.X.Value' are the same.
--
-- Optionally, the requestor can supply the 'Replace' parameter for each
-- individual attribute. Setting this value to 'true' causes the new
-- attribute value to replace the existing attribute value(s). For example,
-- if an item has the attributes '{ \'a\', \'1\' }', '{ \'b\', \'2\'}' and
-- '{ \'b\', \'3\' }' and the requestor calls 'PutAttributes' using the
-- attributes '{ \'b\', \'4\' }' with the 'Replace' parameter set to true,
-- the final attributes of the item are changed to '{ \'a\', \'1\' }' and
-- '{ \'b\', \'4\' }', which replaces the previous values of the \'b\'
-- attribute with the new value.
--
-- You cannot specify an empty string as an attribute name.
--
-- Because Amazon SimpleDB makes multiple copies of client data and uses an
-- eventual consistency update model, an immediate GetAttributes or Select
-- operation (read) immediately after a PutAttributes or DeleteAttributes
-- operation (write) might not return the updated data.
--
-- The following limitations are enforced for this operation:
--
-- -   256 total attribute name-value pairs per item
-- -   One billion attributes per domain
-- -   10 GB of total user data storage per domain
--
-- /See:/ <http://docs.aws.amazon.com/AmazonSimpleDB/latest/DeveloperGuide/SDB_API_PutAttributes.html AWS API Reference> for PutAttributes.
module Network.AWS.SDB.PutAttributes
    (
    -- * Creating a Request
      putAttributes
    , PutAttributes
    -- * Request Lenses
    , paExpected
    , paDomainName
    , paItemName
    , paAttributes

    -- * Destructuring the Response
    , putAttributesResponse
    , PutAttributesResponse
    ) where

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

-- | /See:/ 'putAttributes' smart constructor.
data PutAttributes = PutAttributes'
    { _paExpected   :: !(Maybe UpdateCondition)
    , _paDomainName :: !Text
    , _paItemName   :: !Text
    , _paAttributes :: ![ReplaceableAttribute]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'PutAttributes' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'paExpected'
--
-- * 'paDomainName'
--
-- * 'paItemName'
--
-- * 'paAttributes'
putAttributes
    :: Text -- ^ 'paDomainName'
    -> Text -- ^ 'paItemName'
    -> PutAttributes
putAttributes pDomainName_ pItemName_ =
    PutAttributes'
    { _paExpected = Nothing
    , _paDomainName = pDomainName_
    , _paItemName = pItemName_
    , _paAttributes = mempty
    }

-- | The update condition which, if specified, determines whether the
-- specified attributes will be updated or not. The update condition must
-- be satisfied in order for this request to be processed and the
-- attributes to be updated.
paExpected :: Lens' PutAttributes (Maybe UpdateCondition)
paExpected = lens _paExpected (\ s a -> s{_paExpected = a});

-- | The name of the domain in which to perform the operation.
paDomainName :: Lens' PutAttributes Text
paDomainName = lens _paDomainName (\ s a -> s{_paDomainName = a});

-- | The name of the item.
paItemName :: Lens' PutAttributes Text
paItemName = lens _paItemName (\ s a -> s{_paItemName = a});

-- | The list of attributes.
paAttributes :: Lens' PutAttributes [ReplaceableAttribute]
paAttributes = lens _paAttributes (\ s a -> s{_paAttributes = a}) . _Coerce;

instance AWSRequest PutAttributes where
        type Rs PutAttributes = PutAttributesResponse
        request = postQuery sDB
        response = receiveNull PutAttributesResponse'

instance ToHeaders PutAttributes where
        toHeaders = const mempty

instance ToPath PutAttributes where
        toPath = const "/"

instance ToQuery PutAttributes where
        toQuery PutAttributes'{..}
          = mconcat
              ["Action" =: ("PutAttributes" :: ByteString),
               "Version" =: ("2009-04-15" :: ByteString),
               "Expected" =: _paExpected,
               "DomainName" =: _paDomainName,
               "ItemName" =: _paItemName,
               toQueryList "Attribute" _paAttributes]

-- | /See:/ 'putAttributesResponse' smart constructor.
data PutAttributesResponse =
    PutAttributesResponse'
    deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'PutAttributesResponse' with the minimum fields required to make a request.
--
putAttributesResponse
    :: PutAttributesResponse
putAttributesResponse = PutAttributesResponse'