{-# 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.MigrationHubStrategy.ListCollectors
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves a list of all the installed collectors.
--
-- This operation returns paginated results.
module Amazonka.MigrationHubStrategy.ListCollectors
  ( -- * Creating a Request
    ListCollectors (..),
    newListCollectors,

    -- * Request Lenses
    listCollectors_maxResults,
    listCollectors_nextToken,

    -- * Destructuring the Response
    ListCollectorsResponse (..),
    newListCollectorsResponse,

    -- * Response Lenses
    listCollectorsResponse_collectors,
    listCollectorsResponse_nextToken,
    listCollectorsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListCollectors' smart constructor.
data ListCollectors = ListCollectors'
  { -- | The maximum number of items to include in the response. The maximum
    -- value is 100.
    maxResults :: Prelude.Maybe Prelude.Int,
    -- | The token from a previous call that you use to retrieve the next set of
    -- results. For example, if a previous call to this action returned 100
    -- items, but you set @maxResults@ to 10. You\'ll receive a set of 10
    -- results along with a token. You then use the returned token to retrieve
    -- the next set of 10.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListCollectors' 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', 'listCollectors_maxResults' - The maximum number of items to include in the response. The maximum
-- value is 100.
--
-- 'nextToken', 'listCollectors_nextToken' - The token from a previous call that you use to retrieve the next set of
-- results. For example, if a previous call to this action returned 100
-- items, but you set @maxResults@ to 10. You\'ll receive a set of 10
-- results along with a token. You then use the returned token to retrieve
-- the next set of 10.
newListCollectors ::
  ListCollectors
newListCollectors =
  ListCollectors'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The maximum number of items to include in the response. The maximum
-- value is 100.
listCollectors_maxResults :: Lens.Lens' ListCollectors (Prelude.Maybe Prelude.Int)
listCollectors_maxResults = Lens.lens (\ListCollectors' {maxResults} -> maxResults) (\s@ListCollectors' {} a -> s {maxResults = a} :: ListCollectors)

-- | The token from a previous call that you use to retrieve the next set of
-- results. For example, if a previous call to this action returned 100
-- items, but you set @maxResults@ to 10. You\'ll receive a set of 10
-- results along with a token. You then use the returned token to retrieve
-- the next set of 10.
listCollectors_nextToken :: Lens.Lens' ListCollectors (Prelude.Maybe Prelude.Text)
listCollectors_nextToken = Lens.lens (\ListCollectors' {nextToken} -> nextToken) (\s@ListCollectors' {} a -> s {nextToken = a} :: ListCollectors)

instance Core.AWSPager ListCollectors where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listCollectorsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listCollectorsResponse_collectors
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listCollectors_nextToken
          Lens..~ rs
          Lens.^? listCollectorsResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

instance Data.ToPath ListCollectors where
  toPath = Prelude.const "/list-collectors"

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

-- | /See:/ 'newListCollectorsResponse' smart constructor.
data ListCollectorsResponse = ListCollectorsResponse'
  { -- | The list of all the installed collectors.
    collectors :: Prelude.Maybe [Collector],
    -- | The token you use to retrieve the next set of results, or null if there
    -- are no more 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 'ListCollectorsResponse' 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:
--
-- 'collectors', 'listCollectorsResponse_collectors' - The list of all the installed collectors.
--
-- 'nextToken', 'listCollectorsResponse_nextToken' - The token you use to retrieve the next set of results, or null if there
-- are no more results.
--
-- 'httpStatus', 'listCollectorsResponse_httpStatus' - The response's http status code.
newListCollectorsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListCollectorsResponse
newListCollectorsResponse pHttpStatus_ =
  ListCollectorsResponse'
    { collectors =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The list of all the installed collectors.
listCollectorsResponse_collectors :: Lens.Lens' ListCollectorsResponse (Prelude.Maybe [Collector])
listCollectorsResponse_collectors = Lens.lens (\ListCollectorsResponse' {collectors} -> collectors) (\s@ListCollectorsResponse' {} a -> s {collectors = a} :: ListCollectorsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token you use to retrieve the next set of results, or null if there
-- are no more results.
listCollectorsResponse_nextToken :: Lens.Lens' ListCollectorsResponse (Prelude.Maybe Prelude.Text)
listCollectorsResponse_nextToken = Lens.lens (\ListCollectorsResponse' {nextToken} -> nextToken) (\s@ListCollectorsResponse' {} a -> s {nextToken = a} :: ListCollectorsResponse)

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

instance Prelude.NFData ListCollectorsResponse where
  rnf ListCollectorsResponse' {..} =
    Prelude.rnf collectors
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus