{-# 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.Location.ListTrackers
-- 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 tracker resources in your AWS account.
--
-- This operation returns paginated results.
module Amazonka.Location.ListTrackers
  ( -- * Creating a Request
    ListTrackers (..),
    newListTrackers,

    -- * Request Lenses
    listTrackers_maxResults,
    listTrackers_nextToken,

    -- * Destructuring the Response
    ListTrackersResponse (..),
    newListTrackersResponse,

    -- * Response Lenses
    listTrackersResponse_nextToken,
    listTrackersResponse_httpStatus,
    listTrackersResponse_entries,
  )
where

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

-- | /See:/ 'newListTrackers' smart constructor.
data ListTrackers = ListTrackers'
  { -- | An optional limit for the number of resources returned in a single call.
    --
    -- Default value: @100@
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The pagination token specifying which page of results to return in the
    -- response. If no token is provided, the default page is the first page.
    --
    -- Default value: @null@
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListTrackers' 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', 'listTrackers_maxResults' - An optional limit for the number of resources returned in a single call.
--
-- Default value: @100@
--
-- 'nextToken', 'listTrackers_nextToken' - The pagination token specifying which page of results to return in the
-- response. If no token is provided, the default page is the first page.
--
-- Default value: @null@
newListTrackers ::
  ListTrackers
newListTrackers =
  ListTrackers'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | An optional limit for the number of resources returned in a single call.
--
-- Default value: @100@
listTrackers_maxResults :: Lens.Lens' ListTrackers (Prelude.Maybe Prelude.Natural)
listTrackers_maxResults = Lens.lens (\ListTrackers' {maxResults} -> maxResults) (\s@ListTrackers' {} a -> s {maxResults = a} :: ListTrackers)

-- | The pagination token specifying which page of results to return in the
-- response. If no token is provided, the default page is the first page.
--
-- Default value: @null@
listTrackers_nextToken :: Lens.Lens' ListTrackers (Prelude.Maybe Prelude.Text)
listTrackers_nextToken = Lens.lens (\ListTrackers' {nextToken} -> nextToken) (\s@ListTrackers' {} a -> s {nextToken = a} :: ListTrackers)

instance Core.AWSPager ListTrackers where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listTrackersResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop (rs Lens.^. listTrackersResponse_entries) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listTrackers_nextToken
          Lens..~ rs
          Lens.^? listTrackersResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

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

instance Data.ToPath ListTrackers where
  toPath = Prelude.const "/tracking/v0/list-trackers"

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

-- | /See:/ 'newListTrackersResponse' smart constructor.
data ListTrackersResponse = ListTrackersResponse'
  { -- | A pagination token indicating there are additional pages available. You
    -- can use the token in a following request to fetch the next set of
    -- results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | Contains tracker resources in your AWS account. Details include tracker
    -- name, description and timestamps for when the tracker was created and
    -- last updated.
    entries :: [ListTrackersResponseEntry]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListTrackersResponse' 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', 'listTrackersResponse_nextToken' - A pagination token indicating there are additional pages available. You
-- can use the token in a following request to fetch the next set of
-- results.
--
-- 'httpStatus', 'listTrackersResponse_httpStatus' - The response's http status code.
--
-- 'entries', 'listTrackersResponse_entries' - Contains tracker resources in your AWS account. Details include tracker
-- name, description and timestamps for when the tracker was created and
-- last updated.
newListTrackersResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListTrackersResponse
newListTrackersResponse pHttpStatus_ =
  ListTrackersResponse'
    { nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_,
      entries = Prelude.mempty
    }

-- | A pagination token indicating there are additional pages available. You
-- can use the token in a following request to fetch the next set of
-- results.
listTrackersResponse_nextToken :: Lens.Lens' ListTrackersResponse (Prelude.Maybe Prelude.Text)
listTrackersResponse_nextToken = Lens.lens (\ListTrackersResponse' {nextToken} -> nextToken) (\s@ListTrackersResponse' {} a -> s {nextToken = a} :: ListTrackersResponse)

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

-- | Contains tracker resources in your AWS account. Details include tracker
-- name, description and timestamps for when the tracker was created and
-- last updated.
listTrackersResponse_entries :: Lens.Lens' ListTrackersResponse [ListTrackersResponseEntry]
listTrackersResponse_entries = Lens.lens (\ListTrackersResponse' {entries} -> entries) (\s@ListTrackersResponse' {} a -> s {entries = a} :: ListTrackersResponse) Prelude.. Lens.coerced

instance Prelude.NFData ListTrackersResponse where
  rnf ListTrackersResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf entries