{-# 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.AlexaBusiness.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 for the specified resource.
--
-- This operation returns paginated results.
module Amazonka.AlexaBusiness.ListTags
  ( -- * Creating a Request
    ListTags (..),
    newListTags,

    -- * Request Lenses
    listTags_maxResults,
    listTags_nextToken,
    listTags_arn,

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

    -- * Response Lenses
    listTagsResponse_nextToken,
    listTagsResponse_tags,
    listTagsResponse_httpStatus,
  )
where

import Amazonka.AlexaBusiness.Types
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

-- | /See:/ 'newListTags' smart constructor.
data ListTags = ListTags'
  { -- | The maximum number of results to include in the response. If more
    -- results exist than the specified @MaxResults@ value, a token is included
    -- in the response so that the remaining results can be retrieved.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | An optional token returned from a prior request. Use this token for
    -- pagination of results from this action. If this parameter is specified,
    -- the response includes only results beyond the token, up to the value
    -- specified by @MaxResults@.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The ARN of the specified resource for which to list tags.
    arn :: 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:
--
-- 'maxResults', 'listTags_maxResults' - The maximum number of results to include in the response. If more
-- results exist than the specified @MaxResults@ value, a token is included
-- in the response so that the remaining results can be retrieved.
--
-- 'nextToken', 'listTags_nextToken' - An optional token returned from a prior request. Use this token for
-- pagination of results from this action. If this parameter is specified,
-- the response includes only results beyond the token, up to the value
-- specified by @MaxResults@.
--
-- 'arn', 'listTags_arn' - The ARN of the specified resource for which to list tags.
newListTags ::
  -- | 'arn'
  Prelude.Text ->
  ListTags
newListTags pArn_ =
  ListTags'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      arn = pArn_
    }

-- | The maximum number of results to include in the response. If more
-- results exist than the specified @MaxResults@ value, a token is included
-- in the response so that the remaining results can be retrieved.
listTags_maxResults :: Lens.Lens' ListTags (Prelude.Maybe Prelude.Natural)
listTags_maxResults = Lens.lens (\ListTags' {maxResults} -> maxResults) (\s@ListTags' {} a -> s {maxResults = a} :: ListTags)

-- | An optional token returned from a prior request. Use this token for
-- pagination of results from this action. If this parameter is specified,
-- the response includes only results beyond the token, up to the value
-- specified by @MaxResults@.
listTags_nextToken :: Lens.Lens' ListTags (Prelude.Maybe Prelude.Text)
listTags_nextToken = Lens.lens (\ListTags' {nextToken} -> nextToken) (\s@ListTags' {} a -> s {nextToken = a} :: ListTags)

-- | The ARN of the specified resource for which to list tags.
listTags_arn :: Lens.Lens' ListTags Prelude.Text
listTags_arn = Lens.lens (\ListTags' {arn} -> arn) (\s@ListTags' {} a -> s {arn = a} :: ListTags)

instance Core.AWSPager ListTags where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listTagsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listTagsResponse_tags
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listTags_nextToken
          Lens..~ rs
          Lens.^? listTagsResponse_nextToken
          Prelude.. Lens._Just

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..?> "NextToken")
            Prelude.<*> (x Data..?> "Tags" Core..!@ Prelude.mempty)
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ListTags where
  hashWithSalt _salt ListTags' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` arn

instance Prelude.NFData ListTags where
  rnf ListTags' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf arn

instance Data.ToHeaders ListTags where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ("AlexaForBusiness.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
          [ ("MaxResults" Data..=) Prelude.<$> maxResults,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            Prelude.Just ("Arn" Data..= arn)
          ]
      )

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'
  { -- | The token returned to indicate that there is more data available.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The tags requested for the specified resource.
    tags :: 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:
--
-- 'nextToken', 'listTagsResponse_nextToken' - The token returned to indicate that there is more data available.
--
-- 'tags', 'listTagsResponse_tags' - The tags requested for the specified resource.
--
-- 'httpStatus', 'listTagsResponse_httpStatus' - The response's http status code.
newListTagsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListTagsResponse
newListTagsResponse pHttpStatus_ =
  ListTagsResponse'
    { nextToken = Prelude.Nothing,
      tags = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The token returned to indicate that there is more data available.
listTagsResponse_nextToken :: Lens.Lens' ListTagsResponse (Prelude.Maybe Prelude.Text)
listTagsResponse_nextToken = Lens.lens (\ListTagsResponse' {nextToken} -> nextToken) (\s@ListTagsResponse' {} a -> s {nextToken = a} :: ListTagsResponse)

-- | The tags requested for the specified resource.
listTagsResponse_tags :: Lens.Lens' ListTagsResponse (Prelude.Maybe [Tag])
listTagsResponse_tags = Lens.lens (\ListTagsResponse' {tags} -> tags) (\s@ListTagsResponse' {} a -> s {tags = 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 nextToken
      `Prelude.seq` Prelude.rnf tags
      `Prelude.seq` Prelude.rnf httpStatus