{-# 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.IoTAnalytics.ListPipelines
-- 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 pipelines.
--
-- This operation returns paginated results.
module Amazonka.IoTAnalytics.ListPipelines
  ( -- * Creating a Request
    ListPipelines (..),
    newListPipelines,

    -- * Request Lenses
    listPipelines_maxResults,
    listPipelines_nextToken,

    -- * Destructuring the Response
    ListPipelinesResponse (..),
    newListPipelinesResponse,

    -- * Response Lenses
    listPipelinesResponse_nextToken,
    listPipelinesResponse_pipelineSummaries,
    listPipelinesResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListPipelines' smart constructor.
data ListPipelines = ListPipelines'
  { -- | The maximum number of results to return in this request.
    --
    -- The default value is 100.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The token for the next set of results.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListPipelines' 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', 'listPipelines_maxResults' - The maximum number of results to return in this request.
--
-- The default value is 100.
--
-- 'nextToken', 'listPipelines_nextToken' - The token for the next set of results.
newListPipelines ::
  ListPipelines
newListPipelines =
  ListPipelines'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The maximum number of results to return in this request.
--
-- The default value is 100.
listPipelines_maxResults :: Lens.Lens' ListPipelines (Prelude.Maybe Prelude.Natural)
listPipelines_maxResults = Lens.lens (\ListPipelines' {maxResults} -> maxResults) (\s@ListPipelines' {} a -> s {maxResults = a} :: ListPipelines)

-- | The token for the next set of results.
listPipelines_nextToken :: Lens.Lens' ListPipelines (Prelude.Maybe Prelude.Text)
listPipelines_nextToken = Lens.lens (\ListPipelines' {nextToken} -> nextToken) (\s@ListPipelines' {} a -> s {nextToken = a} :: ListPipelines)

instance Core.AWSPager ListPipelines where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listPipelinesResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listPipelinesResponse_pipelineSummaries
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listPipelines_nextToken
          Lens..~ rs
          Lens.^? listPipelinesResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

instance Data.ToPath ListPipelines where
  toPath = Prelude.const "/pipelines"

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

-- | /See:/ 'newListPipelinesResponse' smart constructor.
data ListPipelinesResponse = ListPipelinesResponse'
  { -- | The token to retrieve the next set of results, or @null@ if there are no
    -- more results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | A list of @PipelineSummary@ objects.
    pipelineSummaries :: Prelude.Maybe [PipelineSummary],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListPipelinesResponse' 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', 'listPipelinesResponse_nextToken' - The token to retrieve the next set of results, or @null@ if there are no
-- more results.
--
-- 'pipelineSummaries', 'listPipelinesResponse_pipelineSummaries' - A list of @PipelineSummary@ objects.
--
-- 'httpStatus', 'listPipelinesResponse_httpStatus' - The response's http status code.
newListPipelinesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListPipelinesResponse
newListPipelinesResponse pHttpStatus_ =
  ListPipelinesResponse'
    { nextToken = Prelude.Nothing,
      pipelineSummaries = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

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

-- | A list of @PipelineSummary@ objects.
listPipelinesResponse_pipelineSummaries :: Lens.Lens' ListPipelinesResponse (Prelude.Maybe [PipelineSummary])
listPipelinesResponse_pipelineSummaries = Lens.lens (\ListPipelinesResponse' {pipelineSummaries} -> pipelineSummaries) (\s@ListPipelinesResponse' {} a -> s {pipelineSummaries = a} :: ListPipelinesResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ListPipelinesResponse where
  rnf ListPipelinesResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf pipelineSummaries
      `Prelude.seq` Prelude.rnf httpStatus