{-# 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.MemoryDb.ListTags
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists all tags currently on a named resource. A tag is a key-value pair
-- where the key and value are case-sensitive. You can use tags to
-- categorize and track your MemoryDB resources. For more information, see
-- <https://docs.aws.amazon.com/MemoryDB/latest/devguide/Tagging-Resources.html Tagging your MemoryDB resources>
module Amazonka.MemoryDb.ListTags
  ( -- * Creating a Request
    ListTags (..),
    newListTags,

    -- * Request Lenses
    listTags_resourceArn,

    -- * Destructuring the Response
    ListTagsResponse (..),
    newListTagsResponse,

    -- * Response Lenses
    listTagsResponse_tagList,
    listTagsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListTags' smart constructor.
data ListTags = ListTags'
  { -- | The Amazon Resource Name (ARN) of the resource for which you want the
    -- list of tags
    resourceArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListTags' 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:
--
-- 'resourceArn', 'listTags_resourceArn' - The Amazon Resource Name (ARN) of the resource for which you want the
-- list of tags
newListTags ::
  -- | 'resourceArn'
  Prelude.Text ->
  ListTags
newListTags pResourceArn_ =
  ListTags' {resourceArn = pResourceArn_}

-- | The Amazon Resource Name (ARN) of the resource for which you want the
-- list of tags
listTags_resourceArn :: Lens.Lens' ListTags Prelude.Text
listTags_resourceArn = Lens.lens (\ListTags' {resourceArn} -> resourceArn) (\s@ListTags' {} a -> s {resourceArn = a} :: ListTags)

instance Core.AWSRequest ListTags where
  type AWSResponse ListTags = ListTagsResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          ListTagsResponse'
            Prelude.<$> (x Data..?> "TagList" Core..!@ Prelude.mempty)
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ListTags where
  hashWithSalt _salt ListTags' {..} =
    _salt `Prelude.hashWithSalt` resourceArn

instance Prelude.NFData ListTags where
  rnf ListTags' {..} = Prelude.rnf resourceArn

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

instance Data.ToJSON ListTags where
  toJSON ListTags' {..} =
    Data.object
      ( Prelude.catMaybes
          [Prelude.Just ("ResourceArn" Data..= resourceArn)]
      )

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

instance Data.ToQuery ListTags where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newListTagsResponse' smart constructor.
data ListTagsResponse = ListTagsResponse'
  { -- | A list of tags as key-value pairs.
    tagList :: Prelude.Maybe [Tag],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListTagsResponse' 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:
--
-- 'tagList', 'listTagsResponse_tagList' - A list of tags as key-value pairs.
--
-- 'httpStatus', 'listTagsResponse_httpStatus' - The response's http status code.
newListTagsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListTagsResponse
newListTagsResponse pHttpStatus_ =
  ListTagsResponse'
    { tagList = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | A list of tags as key-value pairs.
listTagsResponse_tagList :: Lens.Lens' ListTagsResponse (Prelude.Maybe [Tag])
listTagsResponse_tagList = Lens.lens (\ListTagsResponse' {tagList} -> tagList) (\s@ListTagsResponse' {} a -> s {tagList = a} :: ListTagsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The response's http status code.
listTagsResponse_httpStatus :: Lens.Lens' ListTagsResponse Prelude.Int
listTagsResponse_httpStatus = Lens.lens (\ListTagsResponse' {httpStatus} -> httpStatus) (\s@ListTagsResponse' {} a -> s {httpStatus = a} :: ListTagsResponse)

instance Prelude.NFData ListTagsResponse where
  rnf ListTagsResponse' {..} =
    Prelude.rnf tagList
      `Prelude.seq` Prelude.rnf httpStatus