{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

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

-- |
-- Module      : Amazonka.SDB.DeleteAttributes
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Deletes one or more attributes associated with an item. If all
-- attributes of the item are deleted, the item is deleted.
--
-- @DeleteAttributes@ is an idempotent operation; running it multiple times
-- on the same item or attribute does not result in an error response.
--
-- Because Amazon SimpleDB makes multiple copies of item data and uses an
-- eventual consistency update model, performing a GetAttributes or Select
-- operation (read) immediately after a @DeleteAttributes@ or PutAttributes
-- operation (write) might not return updated item data.
module Amazonka.SDB.DeleteAttributes
  ( -- * Creating a Request
    DeleteAttributes (..),
    newDeleteAttributes,

    -- * Request Lenses
    deleteAttributes_attributes,
    deleteAttributes_expected,
    deleteAttributes_domainName,
    deleteAttributes_itemName,

    -- * Destructuring the Response
    DeleteAttributesResponse (..),
    newDeleteAttributesResponse,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response
import Amazonka.SDB.Types

-- | /See:/ 'newDeleteAttributes' smart constructor.
data DeleteAttributes = DeleteAttributes'
  { -- | A list of Attributes. Similar to columns on a spreadsheet, attributes
    -- represent categories of data that can be assigned to items.
    attributes :: Prelude.Maybe [Attribute],
    -- | The update condition which, if specified, determines whether the
    -- specified attributes will be deleted or not. The update condition must
    -- be satisfied in order for this request to be processed and the
    -- attributes to be deleted.
    expected :: Prelude.Maybe UpdateCondition,
    -- | The name of the domain in which to perform the operation.
    domainName :: Prelude.Text,
    -- | The name of the item. Similar to rows on a spreadsheet, items represent
    -- individual objects that contain one or more value-attribute pairs.
    itemName :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DeleteAttributes' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'attributes', 'deleteAttributes_attributes' - A list of Attributes. Similar to columns on a spreadsheet, attributes
-- represent categories of data that can be assigned to items.
--
-- 'expected', 'deleteAttributes_expected' - The update condition which, if specified, determines whether the
-- specified attributes will be deleted or not. The update condition must
-- be satisfied in order for this request to be processed and the
-- attributes to be deleted.
--
-- 'domainName', 'deleteAttributes_domainName' - The name of the domain in which to perform the operation.
--
-- 'itemName', 'deleteAttributes_itemName' - The name of the item. Similar to rows on a spreadsheet, items represent
-- individual objects that contain one or more value-attribute pairs.
newDeleteAttributes ::
  -- | 'domainName'
  Prelude.Text ->
  -- | 'itemName'
  Prelude.Text ->
  DeleteAttributes
newDeleteAttributes pDomainName_ pItemName_ =
  DeleteAttributes'
    { attributes = Prelude.Nothing,
      expected = Prelude.Nothing,
      domainName = pDomainName_,
      itemName = pItemName_
    }

-- | A list of Attributes. Similar to columns on a spreadsheet, attributes
-- represent categories of data that can be assigned to items.
deleteAttributes_attributes :: Lens.Lens' DeleteAttributes (Prelude.Maybe [Attribute])
deleteAttributes_attributes = Lens.lens (\DeleteAttributes' {attributes} -> attributes) (\s@DeleteAttributes' {} a -> s {attributes = a} :: DeleteAttributes) Prelude.. Lens.mapping Lens.coerced

-- | The update condition which, if specified, determines whether the
-- specified attributes will be deleted or not. The update condition must
-- be satisfied in order for this request to be processed and the
-- attributes to be deleted.
deleteAttributes_expected :: Lens.Lens' DeleteAttributes (Prelude.Maybe UpdateCondition)
deleteAttributes_expected = Lens.lens (\DeleteAttributes' {expected} -> expected) (\s@DeleteAttributes' {} a -> s {expected = a} :: DeleteAttributes)

-- | The name of the domain in which to perform the operation.
deleteAttributes_domainName :: Lens.Lens' DeleteAttributes Prelude.Text
deleteAttributes_domainName = Lens.lens (\DeleteAttributes' {domainName} -> domainName) (\s@DeleteAttributes' {} a -> s {domainName = a} :: DeleteAttributes)

-- | The name of the item. Similar to rows on a spreadsheet, items represent
-- individual objects that contain one or more value-attribute pairs.
deleteAttributes_itemName :: Lens.Lens' DeleteAttributes Prelude.Text
deleteAttributes_itemName = Lens.lens (\DeleteAttributes' {itemName} -> itemName) (\s@DeleteAttributes' {} a -> s {itemName = a} :: DeleteAttributes)

instance Core.AWSRequest DeleteAttributes where
  type
    AWSResponse DeleteAttributes =
      DeleteAttributesResponse
  request overrides =
    Request.postQuery (overrides defaultService)
  response =
    Response.receiveNull DeleteAttributesResponse'

instance Prelude.Hashable DeleteAttributes where
  hashWithSalt _salt DeleteAttributes' {..} =
    _salt
      `Prelude.hashWithSalt` attributes
      `Prelude.hashWithSalt` expected
      `Prelude.hashWithSalt` domainName
      `Prelude.hashWithSalt` itemName

instance Prelude.NFData DeleteAttributes where
  rnf DeleteAttributes' {..} =
    Prelude.rnf attributes
      `Prelude.seq` Prelude.rnf expected
      `Prelude.seq` Prelude.rnf domainName
      `Prelude.seq` Prelude.rnf itemName

instance Data.ToHeaders DeleteAttributes where
  toHeaders = Prelude.const Prelude.mempty

instance Data.ToPath DeleteAttributes where
  toPath = Prelude.const "/"

instance Data.ToQuery DeleteAttributes where
  toQuery DeleteAttributes' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ("DeleteAttributes" :: Prelude.ByteString),
        "Version"
          Data.=: ("2009-04-15" :: Prelude.ByteString),
        Data.toQuery
          ( Data.toQueryList "Attribute"
              Prelude.<$> attributes
          ),
        "Expected" Data.=: expected,
        "DomainName" Data.=: domainName,
        "ItemName" Data.=: itemName
      ]

-- | /See:/ 'newDeleteAttributesResponse' smart constructor.
data DeleteAttributesResponse = DeleteAttributesResponse'
  {
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DeleteAttributesResponse' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
newDeleteAttributesResponse ::
  DeleteAttributesResponse
newDeleteAttributesResponse =
  DeleteAttributesResponse'

instance Prelude.NFData DeleteAttributesResponse where
  rnf _ = ()