{-# 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.GlobalAccelerator.ListListeners
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- List the listeners for an accelerator.
--
-- This operation returns paginated results.
module Amazonka.GlobalAccelerator.ListListeners
  ( -- * Creating a Request
    ListListeners (..),
    newListListeners,

    -- * Request Lenses
    listListeners_maxResults,
    listListeners_nextToken,
    listListeners_acceleratorArn,

    -- * Destructuring the Response
    ListListenersResponse (..),
    newListListenersResponse,

    -- * Response Lenses
    listListenersResponse_listeners,
    listListenersResponse_nextToken,
    listListenersResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListListeners' smart constructor.
data ListListeners = ListListeners'
  { -- | The number of listener objects that you want to return with this call.
    -- The default value is 10.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The token for the next set of results. You receive this token from a
    -- previous call.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The Amazon Resource Name (ARN) of the accelerator for which you want to
    -- list listener objects.
    acceleratorArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListListeners' 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', 'listListeners_maxResults' - The number of listener objects that you want to return with this call.
-- The default value is 10.
--
-- 'nextToken', 'listListeners_nextToken' - The token for the next set of results. You receive this token from a
-- previous call.
--
-- 'acceleratorArn', 'listListeners_acceleratorArn' - The Amazon Resource Name (ARN) of the accelerator for which you want to
-- list listener objects.
newListListeners ::
  -- | 'acceleratorArn'
  Prelude.Text ->
  ListListeners
newListListeners pAcceleratorArn_ =
  ListListeners'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      acceleratorArn = pAcceleratorArn_
    }

-- | The number of listener objects that you want to return with this call.
-- The default value is 10.
listListeners_maxResults :: Lens.Lens' ListListeners (Prelude.Maybe Prelude.Natural)
listListeners_maxResults = Lens.lens (\ListListeners' {maxResults} -> maxResults) (\s@ListListeners' {} a -> s {maxResults = a} :: ListListeners)

-- | The token for the next set of results. You receive this token from a
-- previous call.
listListeners_nextToken :: Lens.Lens' ListListeners (Prelude.Maybe Prelude.Text)
listListeners_nextToken = Lens.lens (\ListListeners' {nextToken} -> nextToken) (\s@ListListeners' {} a -> s {nextToken = a} :: ListListeners)

-- | The Amazon Resource Name (ARN) of the accelerator for which you want to
-- list listener objects.
listListeners_acceleratorArn :: Lens.Lens' ListListeners Prelude.Text
listListeners_acceleratorArn = Lens.lens (\ListListeners' {acceleratorArn} -> acceleratorArn) (\s@ListListeners' {} a -> s {acceleratorArn = a} :: ListListeners)

instance Core.AWSPager ListListeners where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listListenersResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listListenersResponse_listeners
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listListeners_nextToken
          Lens..~ rs
          Lens.^? listListenersResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListListeners where
  hashWithSalt _salt ListListeners' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` acceleratorArn

instance Prelude.NFData ListListeners where
  rnf ListListeners' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf acceleratorArn

instance Data.ToHeaders ListListeners where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "GlobalAccelerator_V20180706.ListListeners" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListListeners where
  toJSON ListListeners' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("MaxResults" Data..=) Prelude.<$> maxResults,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            Prelude.Just
              ("AcceleratorArn" Data..= acceleratorArn)
          ]
      )

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

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

-- | /See:/ 'newListListenersResponse' smart constructor.
data ListListenersResponse = ListListenersResponse'
  { -- | The list of listeners for an accelerator.
    listeners :: Prelude.Maybe [Listener],
    -- | The token for the next set of results. You receive this token from a
    -- previous call.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListListenersResponse' 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:
--
-- 'listeners', 'listListenersResponse_listeners' - The list of listeners for an accelerator.
--
-- 'nextToken', 'listListenersResponse_nextToken' - The token for the next set of results. You receive this token from a
-- previous call.
--
-- 'httpStatus', 'listListenersResponse_httpStatus' - The response's http status code.
newListListenersResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListListenersResponse
newListListenersResponse pHttpStatus_ =
  ListListenersResponse'
    { listeners = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The list of listeners for an accelerator.
listListenersResponse_listeners :: Lens.Lens' ListListenersResponse (Prelude.Maybe [Listener])
listListenersResponse_listeners = Lens.lens (\ListListenersResponse' {listeners} -> listeners) (\s@ListListenersResponse' {} a -> s {listeners = a} :: ListListenersResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token for the next set of results. You receive this token from a
-- previous call.
listListenersResponse_nextToken :: Lens.Lens' ListListenersResponse (Prelude.Maybe Prelude.Text)
listListenersResponse_nextToken = Lens.lens (\ListListenersResponse' {nextToken} -> nextToken) (\s@ListListenersResponse' {} a -> s {nextToken = a} :: ListListenersResponse)

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

instance Prelude.NFData ListListenersResponse where
  rnf ListListenersResponse' {..} =
    Prelude.rnf listeners
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus