{-# 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.ElasticBeanstalk.DescribeApplicationVersions
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieve a list of application versions.
--
-- This operation returns paginated results.
module Amazonka.ElasticBeanstalk.DescribeApplicationVersions
  ( -- * Creating a Request
    DescribeApplicationVersions (..),
    newDescribeApplicationVersions,

    -- * Request Lenses
    describeApplicationVersions_applicationName,
    describeApplicationVersions_maxRecords,
    describeApplicationVersions_nextToken,
    describeApplicationVersions_versionLabels,

    -- * Destructuring the Response
    DescribeApplicationVersionsResponse (..),
    newDescribeApplicationVersionsResponse,

    -- * Response Lenses
    describeApplicationVersionsResponse_applicationVersions,
    describeApplicationVersionsResponse_nextToken,
    describeApplicationVersionsResponse_httpStatus,
  )
where

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

-- | Request to describe application versions.
--
-- /See:/ 'newDescribeApplicationVersions' smart constructor.
data DescribeApplicationVersions = DescribeApplicationVersions'
  { -- | Specify an application name to show only application versions for that
    -- application.
    applicationName :: Prelude.Maybe Prelude.Text,
    -- | For a paginated request. Specify a maximum number of application
    -- versions to include in each response.
    --
    -- If no @MaxRecords@ is specified, all available application versions are
    -- retrieved in a single response.
    maxRecords :: Prelude.Maybe Prelude.Natural,
    -- | For a paginated request. Specify a token from a previous response page
    -- to retrieve the next response page. All other parameter values must be
    -- identical to the ones specified in the initial request.
    --
    -- If no @NextToken@ is specified, the first page is retrieved.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | Specify a version label to show a specific application version.
    versionLabels :: Prelude.Maybe [Prelude.Text]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeApplicationVersions' 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:
--
-- 'applicationName', 'describeApplicationVersions_applicationName' - Specify an application name to show only application versions for that
-- application.
--
-- 'maxRecords', 'describeApplicationVersions_maxRecords' - For a paginated request. Specify a maximum number of application
-- versions to include in each response.
--
-- If no @MaxRecords@ is specified, all available application versions are
-- retrieved in a single response.
--
-- 'nextToken', 'describeApplicationVersions_nextToken' - For a paginated request. Specify a token from a previous response page
-- to retrieve the next response page. All other parameter values must be
-- identical to the ones specified in the initial request.
--
-- If no @NextToken@ is specified, the first page is retrieved.
--
-- 'versionLabels', 'describeApplicationVersions_versionLabels' - Specify a version label to show a specific application version.
newDescribeApplicationVersions ::
  DescribeApplicationVersions
newDescribeApplicationVersions =
  DescribeApplicationVersions'
    { applicationName =
        Prelude.Nothing,
      maxRecords = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      versionLabels = Prelude.Nothing
    }

-- | Specify an application name to show only application versions for that
-- application.
describeApplicationVersions_applicationName :: Lens.Lens' DescribeApplicationVersions (Prelude.Maybe Prelude.Text)
describeApplicationVersions_applicationName = Lens.lens (\DescribeApplicationVersions' {applicationName} -> applicationName) (\s@DescribeApplicationVersions' {} a -> s {applicationName = a} :: DescribeApplicationVersions)

-- | For a paginated request. Specify a maximum number of application
-- versions to include in each response.
--
-- If no @MaxRecords@ is specified, all available application versions are
-- retrieved in a single response.
describeApplicationVersions_maxRecords :: Lens.Lens' DescribeApplicationVersions (Prelude.Maybe Prelude.Natural)
describeApplicationVersions_maxRecords = Lens.lens (\DescribeApplicationVersions' {maxRecords} -> maxRecords) (\s@DescribeApplicationVersions' {} a -> s {maxRecords = a} :: DescribeApplicationVersions)

-- | For a paginated request. Specify a token from a previous response page
-- to retrieve the next response page. All other parameter values must be
-- identical to the ones specified in the initial request.
--
-- If no @NextToken@ is specified, the first page is retrieved.
describeApplicationVersions_nextToken :: Lens.Lens' DescribeApplicationVersions (Prelude.Maybe Prelude.Text)
describeApplicationVersions_nextToken = Lens.lens (\DescribeApplicationVersions' {nextToken} -> nextToken) (\s@DescribeApplicationVersions' {} a -> s {nextToken = a} :: DescribeApplicationVersions)

-- | Specify a version label to show a specific application version.
describeApplicationVersions_versionLabels :: Lens.Lens' DescribeApplicationVersions (Prelude.Maybe [Prelude.Text])
describeApplicationVersions_versionLabels = Lens.lens (\DescribeApplicationVersions' {versionLabels} -> versionLabels) (\s@DescribeApplicationVersions' {} a -> s {versionLabels = a} :: DescribeApplicationVersions) Prelude.. Lens.mapping Lens.coerced

instance Core.AWSPager DescribeApplicationVersions where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describeApplicationVersionsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? describeApplicationVersionsResponse_applicationVersions
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describeApplicationVersions_nextToken
          Lens..~ rs
          Lens.^? describeApplicationVersionsResponse_nextToken
          Prelude.. Lens._Just

instance Core.AWSRequest DescribeApplicationVersions where
  type
    AWSResponse DescribeApplicationVersions =
      DescribeApplicationVersionsResponse
  request overrides =
    Request.postQuery (overrides defaultService)
  response =
    Response.receiveXMLWrapper
      "DescribeApplicationVersionsResult"
      ( \s h x ->
          DescribeApplicationVersionsResponse'
            Prelude.<$> ( x
                            Data..@? "ApplicationVersions"
                            Core..!@ Prelude.mempty
                            Prelude.>>= Core.may (Data.parseXMLList "member")
                        )
            Prelude.<*> (x Data..@? "NextToken")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable DescribeApplicationVersions where
  hashWithSalt _salt DescribeApplicationVersions' {..} =
    _salt
      `Prelude.hashWithSalt` applicationName
      `Prelude.hashWithSalt` maxRecords
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` versionLabels

instance Prelude.NFData DescribeApplicationVersions where
  rnf DescribeApplicationVersions' {..} =
    Prelude.rnf applicationName
      `Prelude.seq` Prelude.rnf maxRecords
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf versionLabels

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

instance Data.ToPath DescribeApplicationVersions where
  toPath = Prelude.const "/"

instance Data.ToQuery DescribeApplicationVersions where
  toQuery DescribeApplicationVersions' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ( "DescribeApplicationVersions" ::
                      Prelude.ByteString
                  ),
        "Version"
          Data.=: ("2010-12-01" :: Prelude.ByteString),
        "ApplicationName" Data.=: applicationName,
        "MaxRecords" Data.=: maxRecords,
        "NextToken" Data.=: nextToken,
        "VersionLabels"
          Data.=: Data.toQuery
            ( Data.toQueryList "member"
                Prelude.<$> versionLabels
            )
      ]

-- | Result message wrapping a list of application version descriptions.
--
-- /See:/ 'newDescribeApplicationVersionsResponse' smart constructor.
data DescribeApplicationVersionsResponse = DescribeApplicationVersionsResponse'
  { -- | List of @ApplicationVersionDescription@ objects sorted in order of
    -- creation.
    applicationVersions :: Prelude.Maybe [ApplicationVersionDescription],
    -- | In a paginated request, the token that you can pass in a subsequent
    -- request to get the next response page.
    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 'DescribeApplicationVersionsResponse' 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:
--
-- 'applicationVersions', 'describeApplicationVersionsResponse_applicationVersions' - List of @ApplicationVersionDescription@ objects sorted in order of
-- creation.
--
-- 'nextToken', 'describeApplicationVersionsResponse_nextToken' - In a paginated request, the token that you can pass in a subsequent
-- request to get the next response page.
--
-- 'httpStatus', 'describeApplicationVersionsResponse_httpStatus' - The response's http status code.
newDescribeApplicationVersionsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeApplicationVersionsResponse
newDescribeApplicationVersionsResponse pHttpStatus_ =
  DescribeApplicationVersionsResponse'
    { applicationVersions =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | List of @ApplicationVersionDescription@ objects sorted in order of
-- creation.
describeApplicationVersionsResponse_applicationVersions :: Lens.Lens' DescribeApplicationVersionsResponse (Prelude.Maybe [ApplicationVersionDescription])
describeApplicationVersionsResponse_applicationVersions = Lens.lens (\DescribeApplicationVersionsResponse' {applicationVersions} -> applicationVersions) (\s@DescribeApplicationVersionsResponse' {} a -> s {applicationVersions = a} :: DescribeApplicationVersionsResponse) Prelude.. Lens.mapping Lens.coerced

-- | In a paginated request, the token that you can pass in a subsequent
-- request to get the next response page.
describeApplicationVersionsResponse_nextToken :: Lens.Lens' DescribeApplicationVersionsResponse (Prelude.Maybe Prelude.Text)
describeApplicationVersionsResponse_nextToken = Lens.lens (\DescribeApplicationVersionsResponse' {nextToken} -> nextToken) (\s@DescribeApplicationVersionsResponse' {} a -> s {nextToken = a} :: DescribeApplicationVersionsResponse)

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

instance
  Prelude.NFData
    DescribeApplicationVersionsResponse
  where
  rnf DescribeApplicationVersionsResponse' {..} =
    Prelude.rnf applicationVersions
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus