{-# 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.IoT.ListBillingGroups
-- 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 the billing groups you have created.
--
-- Requires permission to access the
-- <https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions ListBillingGroups>
-- action.
--
-- This operation returns paginated results.
module Amazonka.IoT.ListBillingGroups
  ( -- * Creating a Request
    ListBillingGroups (..),
    newListBillingGroups,

    -- * Request Lenses
    listBillingGroups_maxResults,
    listBillingGroups_namePrefixFilter,
    listBillingGroups_nextToken,

    -- * Destructuring the Response
    ListBillingGroupsResponse (..),
    newListBillingGroupsResponse,

    -- * Response Lenses
    listBillingGroupsResponse_billingGroups,
    listBillingGroupsResponse_nextToken,
    listBillingGroupsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListBillingGroups' smart constructor.
data ListBillingGroups = ListBillingGroups'
  { -- | The maximum number of results to return per request.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | Limit the results to billing groups whose names have the given prefix.
    namePrefixFilter :: Prelude.Maybe Prelude.Text,
    -- | To retrieve the next set of results, the @nextToken@ value from a
    -- previous response; otherwise __null__ to receive the first set of
    -- results.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListBillingGroups' 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', 'listBillingGroups_maxResults' - The maximum number of results to return per request.
--
-- 'namePrefixFilter', 'listBillingGroups_namePrefixFilter' - Limit the results to billing groups whose names have the given prefix.
--
-- 'nextToken', 'listBillingGroups_nextToken' - To retrieve the next set of results, the @nextToken@ value from a
-- previous response; otherwise __null__ to receive the first set of
-- results.
newListBillingGroups ::
  ListBillingGroups
newListBillingGroups =
  ListBillingGroups'
    { maxResults = Prelude.Nothing,
      namePrefixFilter = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The maximum number of results to return per request.
listBillingGroups_maxResults :: Lens.Lens' ListBillingGroups (Prelude.Maybe Prelude.Natural)
listBillingGroups_maxResults = Lens.lens (\ListBillingGroups' {maxResults} -> maxResults) (\s@ListBillingGroups' {} a -> s {maxResults = a} :: ListBillingGroups)

-- | Limit the results to billing groups whose names have the given prefix.
listBillingGroups_namePrefixFilter :: Lens.Lens' ListBillingGroups (Prelude.Maybe Prelude.Text)
listBillingGroups_namePrefixFilter = Lens.lens (\ListBillingGroups' {namePrefixFilter} -> namePrefixFilter) (\s@ListBillingGroups' {} a -> s {namePrefixFilter = a} :: ListBillingGroups)

-- | To retrieve the next set of results, the @nextToken@ value from a
-- previous response; otherwise __null__ to receive the first set of
-- results.
listBillingGroups_nextToken :: Lens.Lens' ListBillingGroups (Prelude.Maybe Prelude.Text)
listBillingGroups_nextToken = Lens.lens (\ListBillingGroups' {nextToken} -> nextToken) (\s@ListBillingGroups' {} a -> s {nextToken = a} :: ListBillingGroups)

instance Core.AWSPager ListBillingGroups where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listBillingGroupsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listBillingGroupsResponse_billingGroups
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listBillingGroups_nextToken
          Lens..~ rs
          Lens.^? listBillingGroupsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListBillingGroups where
  hashWithSalt _salt ListBillingGroups' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` namePrefixFilter
      `Prelude.hashWithSalt` nextToken

instance Prelude.NFData ListBillingGroups where
  rnf ListBillingGroups' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf namePrefixFilter
      `Prelude.seq` Prelude.rnf nextToken

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

instance Data.ToPath ListBillingGroups where
  toPath = Prelude.const "/billing-groups"

instance Data.ToQuery ListBillingGroups where
  toQuery ListBillingGroups' {..} =
    Prelude.mconcat
      [ "maxResults" Data.=: maxResults,
        "namePrefixFilter" Data.=: namePrefixFilter,
        "nextToken" Data.=: nextToken
      ]

-- | /See:/ 'newListBillingGroupsResponse' smart constructor.
data ListBillingGroupsResponse = ListBillingGroupsResponse'
  { -- | The list of billing groups.
    billingGroups :: Prelude.Maybe [GroupNameAndArn],
    -- | The token to use to get the next set of results, or __null__ if there
    -- are no additional results.
    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 'ListBillingGroupsResponse' 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:
--
-- 'billingGroups', 'listBillingGroupsResponse_billingGroups' - The list of billing groups.
--
-- 'nextToken', 'listBillingGroupsResponse_nextToken' - The token to use to get the next set of results, or __null__ if there
-- are no additional results.
--
-- 'httpStatus', 'listBillingGroupsResponse_httpStatus' - The response's http status code.
newListBillingGroupsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListBillingGroupsResponse
newListBillingGroupsResponse pHttpStatus_ =
  ListBillingGroupsResponse'
    { billingGroups =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The list of billing groups.
listBillingGroupsResponse_billingGroups :: Lens.Lens' ListBillingGroupsResponse (Prelude.Maybe [GroupNameAndArn])
listBillingGroupsResponse_billingGroups = Lens.lens (\ListBillingGroupsResponse' {billingGroups} -> billingGroups) (\s@ListBillingGroupsResponse' {} a -> s {billingGroups = a} :: ListBillingGroupsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token to use to get the next set of results, or __null__ if there
-- are no additional results.
listBillingGroupsResponse_nextToken :: Lens.Lens' ListBillingGroupsResponse (Prelude.Maybe Prelude.Text)
listBillingGroupsResponse_nextToken = Lens.lens (\ListBillingGroupsResponse' {nextToken} -> nextToken) (\s@ListBillingGroupsResponse' {} a -> s {nextToken = a} :: ListBillingGroupsResponse)

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

instance Prelude.NFData ListBillingGroupsResponse where
  rnf ListBillingGroupsResponse' {..} =
    Prelude.rnf billingGroups
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus