{-# 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.DevOpsGuru.ListNotificationChannels
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns a list of notification channels configured for DevOps Guru. Each
-- notification channel is used to notify you when DevOps Guru generates an
-- insight that contains information about how to improve your operations.
-- The one supported notification channel is Amazon Simple Notification
-- Service (Amazon SNS).
--
-- This operation returns paginated results.
module Amazonka.DevOpsGuru.ListNotificationChannels
  ( -- * Creating a Request
    ListNotificationChannels (..),
    newListNotificationChannels,

    -- * Request Lenses
    listNotificationChannels_nextToken,

    -- * Destructuring the Response
    ListNotificationChannelsResponse (..),
    newListNotificationChannelsResponse,

    -- * Response Lenses
    listNotificationChannelsResponse_channels,
    listNotificationChannelsResponse_nextToken,
    listNotificationChannelsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListNotificationChannels' smart constructor.
data ListNotificationChannels = ListNotificationChannels'
  { -- | The pagination token to use to retrieve the next page of results for
    -- this operation. If this value is null, it retrieves the first page.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListNotificationChannels' 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', 'listNotificationChannels_nextToken' - The pagination token to use to retrieve the next page of results for
-- this operation. If this value is null, it retrieves the first page.
newListNotificationChannels ::
  ListNotificationChannels
newListNotificationChannels =
  ListNotificationChannels'
    { nextToken =
        Prelude.Nothing
    }

-- | The pagination token to use to retrieve the next page of results for
-- this operation. If this value is null, it retrieves the first page.
listNotificationChannels_nextToken :: Lens.Lens' ListNotificationChannels (Prelude.Maybe Prelude.Text)
listNotificationChannels_nextToken = Lens.lens (\ListNotificationChannels' {nextToken} -> nextToken) (\s@ListNotificationChannels' {} a -> s {nextToken = a} :: ListNotificationChannels)

instance Core.AWSPager ListNotificationChannels where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listNotificationChannelsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listNotificationChannelsResponse_channels
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listNotificationChannels_nextToken
          Lens..~ rs
          Lens.^? listNotificationChannelsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListNotificationChannels where
  hashWithSalt _salt ListNotificationChannels' {..} =
    _salt `Prelude.hashWithSalt` nextToken

instance Prelude.NFData ListNotificationChannels where
  rnf ListNotificationChannels' {..} =
    Prelude.rnf nextToken

instance Data.ToHeaders ListNotificationChannels where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListNotificationChannels where
  toJSON ListNotificationChannels' {..} =
    Data.object
      ( Prelude.catMaybes
          [("NextToken" Data..=) Prelude.<$> nextToken]
      )

instance Data.ToPath ListNotificationChannels where
  toPath = Prelude.const "/channels"

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

-- | /See:/ 'newListNotificationChannelsResponse' smart constructor.
data ListNotificationChannelsResponse = ListNotificationChannelsResponse'
  { -- | An array that contains the requested notification channels.
    channels :: Prelude.Maybe [NotificationChannel],
    -- | The pagination token to use to retrieve the next page of results for
    -- this operation. If there are no more pages, this value is null.
    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 'ListNotificationChannelsResponse' 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:
--
-- 'channels', 'listNotificationChannelsResponse_channels' - An array that contains the requested notification channels.
--
-- 'nextToken', 'listNotificationChannelsResponse_nextToken' - The pagination token to use to retrieve the next page of results for
-- this operation. If there are no more pages, this value is null.
--
-- 'httpStatus', 'listNotificationChannelsResponse_httpStatus' - The response's http status code.
newListNotificationChannelsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListNotificationChannelsResponse
newListNotificationChannelsResponse pHttpStatus_ =
  ListNotificationChannelsResponse'
    { channels =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | An array that contains the requested notification channels.
listNotificationChannelsResponse_channels :: Lens.Lens' ListNotificationChannelsResponse (Prelude.Maybe [NotificationChannel])
listNotificationChannelsResponse_channels = Lens.lens (\ListNotificationChannelsResponse' {channels} -> channels) (\s@ListNotificationChannelsResponse' {} a -> s {channels = a} :: ListNotificationChannelsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The pagination token to use to retrieve the next page of results for
-- this operation. If there are no more pages, this value is null.
listNotificationChannelsResponse_nextToken :: Lens.Lens' ListNotificationChannelsResponse (Prelude.Maybe Prelude.Text)
listNotificationChannelsResponse_nextToken = Lens.lens (\ListNotificationChannelsResponse' {nextToken} -> nextToken) (\s@ListNotificationChannelsResponse' {} a -> s {nextToken = a} :: ListNotificationChannelsResponse)

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

instance
  Prelude.NFData
    ListNotificationChannelsResponse
  where
  rnf ListNotificationChannelsResponse' {..} =
    Prelude.rnf channels
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus