{-# 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.Batch.DescribeJobQueues
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Describes one or more of your job queues.
--
-- This operation returns paginated results.
module Amazonka.Batch.DescribeJobQueues
  ( -- * Creating a Request
    DescribeJobQueues (..),
    newDescribeJobQueues,

    -- * Request Lenses
    describeJobQueues_jobQueues,
    describeJobQueues_maxResults,
    describeJobQueues_nextToken,

    -- * Destructuring the Response
    DescribeJobQueuesResponse (..),
    newDescribeJobQueuesResponse,

    -- * Response Lenses
    describeJobQueuesResponse_jobQueues,
    describeJobQueuesResponse_nextToken,
    describeJobQueuesResponse_httpStatus,
  )
where

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

-- | Contains the parameters for @DescribeJobQueues@.
--
-- /See:/ 'newDescribeJobQueues' smart constructor.
data DescribeJobQueues = DescribeJobQueues'
  { -- | A list of up to 100 queue names or full queue Amazon Resource Name (ARN)
    -- entries.
    jobQueues :: Prelude.Maybe [Prelude.Text],
    -- | The maximum number of results returned by @DescribeJobQueues@ in
    -- paginated output. When this parameter is used, @DescribeJobQueues@ only
    -- returns @maxResults@ results in a single page and a @nextToken@ response
    -- element. The remaining results of the initial request can be seen by
    -- sending another @DescribeJobQueues@ request with the returned
    -- @nextToken@ value. This value can be between 1 and 100. If this
    -- parameter isn\'t used, then @DescribeJobQueues@ returns up to 100
    -- results and a @nextToken@ value if applicable.
    maxResults :: Prelude.Maybe Prelude.Int,
    -- | The @nextToken@ value returned from a previous paginated
    -- @DescribeJobQueues@ request where @maxResults@ was used and the results
    -- exceeded the value of that parameter. Pagination continues from the end
    -- of the previous results that returned the @nextToken@ value. This value
    -- is @null@ when there are no more results to return.
    --
    -- Treat this token as an opaque identifier that\'s only used to retrieve
    -- the next items in a list and not for other programmatic purposes.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeJobQueues' 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:
--
-- 'jobQueues', 'describeJobQueues_jobQueues' - A list of up to 100 queue names or full queue Amazon Resource Name (ARN)
-- entries.
--
-- 'maxResults', 'describeJobQueues_maxResults' - The maximum number of results returned by @DescribeJobQueues@ in
-- paginated output. When this parameter is used, @DescribeJobQueues@ only
-- returns @maxResults@ results in a single page and a @nextToken@ response
-- element. The remaining results of the initial request can be seen by
-- sending another @DescribeJobQueues@ request with the returned
-- @nextToken@ value. This value can be between 1 and 100. If this
-- parameter isn\'t used, then @DescribeJobQueues@ returns up to 100
-- results and a @nextToken@ value if applicable.
--
-- 'nextToken', 'describeJobQueues_nextToken' - The @nextToken@ value returned from a previous paginated
-- @DescribeJobQueues@ request where @maxResults@ was used and the results
-- exceeded the value of that parameter. Pagination continues from the end
-- of the previous results that returned the @nextToken@ value. This value
-- is @null@ when there are no more results to return.
--
-- Treat this token as an opaque identifier that\'s only used to retrieve
-- the next items in a list and not for other programmatic purposes.
newDescribeJobQueues ::
  DescribeJobQueues
newDescribeJobQueues =
  DescribeJobQueues'
    { jobQueues = Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | A list of up to 100 queue names or full queue Amazon Resource Name (ARN)
-- entries.
describeJobQueues_jobQueues :: Lens.Lens' DescribeJobQueues (Prelude.Maybe [Prelude.Text])
describeJobQueues_jobQueues = Lens.lens (\DescribeJobQueues' {jobQueues} -> jobQueues) (\s@DescribeJobQueues' {} a -> s {jobQueues = a} :: DescribeJobQueues) Prelude.. Lens.mapping Lens.coerced

-- | The maximum number of results returned by @DescribeJobQueues@ in
-- paginated output. When this parameter is used, @DescribeJobQueues@ only
-- returns @maxResults@ results in a single page and a @nextToken@ response
-- element. The remaining results of the initial request can be seen by
-- sending another @DescribeJobQueues@ request with the returned
-- @nextToken@ value. This value can be between 1 and 100. If this
-- parameter isn\'t used, then @DescribeJobQueues@ returns up to 100
-- results and a @nextToken@ value if applicable.
describeJobQueues_maxResults :: Lens.Lens' DescribeJobQueues (Prelude.Maybe Prelude.Int)
describeJobQueues_maxResults = Lens.lens (\DescribeJobQueues' {maxResults} -> maxResults) (\s@DescribeJobQueues' {} a -> s {maxResults = a} :: DescribeJobQueues)

-- | The @nextToken@ value returned from a previous paginated
-- @DescribeJobQueues@ request where @maxResults@ was used and the results
-- exceeded the value of that parameter. Pagination continues from the end
-- of the previous results that returned the @nextToken@ value. This value
-- is @null@ when there are no more results to return.
--
-- Treat this token as an opaque identifier that\'s only used to retrieve
-- the next items in a list and not for other programmatic purposes.
describeJobQueues_nextToken :: Lens.Lens' DescribeJobQueues (Prelude.Maybe Prelude.Text)
describeJobQueues_nextToken = Lens.lens (\DescribeJobQueues' {nextToken} -> nextToken) (\s@DescribeJobQueues' {} a -> s {nextToken = a} :: DescribeJobQueues)

instance Core.AWSPager DescribeJobQueues where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describeJobQueuesResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? describeJobQueuesResponse_jobQueues
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describeJobQueues_nextToken
          Lens..~ rs
          Lens.^? describeJobQueuesResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

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

instance Data.ToPath DescribeJobQueues where
  toPath = Prelude.const "/v1/describejobqueues"

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

-- | /See:/ 'newDescribeJobQueuesResponse' smart constructor.
data DescribeJobQueuesResponse = DescribeJobQueuesResponse'
  { -- | The list of job queues.
    jobQueues :: Prelude.Maybe [JobQueueDetail],
    -- | The @nextToken@ value to include in a future @DescribeJobQueues@
    -- request. When the results of a @DescribeJobQueues@ request exceed
    -- @maxResults@, this value can be used to retrieve the next page of
    -- results. This value is @null@ when there are no more results to return.
    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 'DescribeJobQueuesResponse' 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:
--
-- 'jobQueues', 'describeJobQueuesResponse_jobQueues' - The list of job queues.
--
-- 'nextToken', 'describeJobQueuesResponse_nextToken' - The @nextToken@ value to include in a future @DescribeJobQueues@
-- request. When the results of a @DescribeJobQueues@ request exceed
-- @maxResults@, this value can be used to retrieve the next page of
-- results. This value is @null@ when there are no more results to return.
--
-- 'httpStatus', 'describeJobQueuesResponse_httpStatus' - The response's http status code.
newDescribeJobQueuesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeJobQueuesResponse
newDescribeJobQueuesResponse pHttpStatus_ =
  DescribeJobQueuesResponse'
    { jobQueues =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The list of job queues.
describeJobQueuesResponse_jobQueues :: Lens.Lens' DescribeJobQueuesResponse (Prelude.Maybe [JobQueueDetail])
describeJobQueuesResponse_jobQueues = Lens.lens (\DescribeJobQueuesResponse' {jobQueues} -> jobQueues) (\s@DescribeJobQueuesResponse' {} a -> s {jobQueues = a} :: DescribeJobQueuesResponse) Prelude.. Lens.mapping Lens.coerced

-- | The @nextToken@ value to include in a future @DescribeJobQueues@
-- request. When the results of a @DescribeJobQueues@ request exceed
-- @maxResults@, this value can be used to retrieve the next page of
-- results. This value is @null@ when there are no more results to return.
describeJobQueuesResponse_nextToken :: Lens.Lens' DescribeJobQueuesResponse (Prelude.Maybe Prelude.Text)
describeJobQueuesResponse_nextToken = Lens.lens (\DescribeJobQueuesResponse' {nextToken} -> nextToken) (\s@DescribeJobQueuesResponse' {} a -> s {nextToken = a} :: DescribeJobQueuesResponse)

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

instance Prelude.NFData DescribeJobQueuesResponse where
  rnf DescribeJobQueuesResponse' {..} =
    Prelude.rnf jobQueues
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus