{-# 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.AppStream.DescribeApplications
-- 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 that describes one or more applications.
module Amazonka.AppStream.DescribeApplications
  ( -- * Creating a Request
    DescribeApplications (..),
    newDescribeApplications,

    -- * Request Lenses
    describeApplications_arns,
    describeApplications_maxResults,
    describeApplications_nextToken,

    -- * Destructuring the Response
    DescribeApplicationsResponse (..),
    newDescribeApplicationsResponse,

    -- * Response Lenses
    describeApplicationsResponse_applications,
    describeApplicationsResponse_nextToken,
    describeApplicationsResponse_httpStatus,
  )
where

import Amazonka.AppStream.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

-- | /See:/ 'newDescribeApplications' smart constructor.
data DescribeApplications = DescribeApplications'
  { -- | The ARNs for the applications.
    arns :: Prelude.Maybe [Prelude.Text],
    -- | The maximum size of each page of results.
    maxResults :: Prelude.Maybe Prelude.Int,
    -- | The pagination token used to retrieve the next page of results for this
    -- operation.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeApplications' 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:
--
-- 'arns', 'describeApplications_arns' - The ARNs for the applications.
--
-- 'maxResults', 'describeApplications_maxResults' - The maximum size of each page of results.
--
-- 'nextToken', 'describeApplications_nextToken' - The pagination token used to retrieve the next page of results for this
-- operation.
newDescribeApplications ::
  DescribeApplications
newDescribeApplications =
  DescribeApplications'
    { arns = Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The ARNs for the applications.
describeApplications_arns :: Lens.Lens' DescribeApplications (Prelude.Maybe [Prelude.Text])
describeApplications_arns = Lens.lens (\DescribeApplications' {arns} -> arns) (\s@DescribeApplications' {} a -> s {arns = a} :: DescribeApplications) Prelude.. Lens.mapping Lens.coerced

-- | The maximum size of each page of results.
describeApplications_maxResults :: Lens.Lens' DescribeApplications (Prelude.Maybe Prelude.Int)
describeApplications_maxResults = Lens.lens (\DescribeApplications' {maxResults} -> maxResults) (\s@DescribeApplications' {} a -> s {maxResults = a} :: DescribeApplications)

-- | The pagination token used to retrieve the next page of results for this
-- operation.
describeApplications_nextToken :: Lens.Lens' DescribeApplications (Prelude.Maybe Prelude.Text)
describeApplications_nextToken = Lens.lens (\DescribeApplications' {nextToken} -> nextToken) (\s@DescribeApplications' {} a -> s {nextToken = a} :: DescribeApplications)

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

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

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

instance Data.ToHeaders DescribeApplications where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "PhotonAdminProxyService.DescribeApplications" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

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

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

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

-- | /See:/ 'newDescribeApplicationsResponse' smart constructor.
data DescribeApplicationsResponse = DescribeApplicationsResponse'
  { -- | The applications in the list.
    applications :: Prelude.Maybe [Application],
    -- | The pagination token used to retrieve the next page of results for this
    -- operation.
    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 'DescribeApplicationsResponse' 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:
--
-- 'applications', 'describeApplicationsResponse_applications' - The applications in the list.
--
-- 'nextToken', 'describeApplicationsResponse_nextToken' - The pagination token used to retrieve the next page of results for this
-- operation.
--
-- 'httpStatus', 'describeApplicationsResponse_httpStatus' - The response's http status code.
newDescribeApplicationsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeApplicationsResponse
newDescribeApplicationsResponse pHttpStatus_ =
  DescribeApplicationsResponse'
    { applications =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The applications in the list.
describeApplicationsResponse_applications :: Lens.Lens' DescribeApplicationsResponse (Prelude.Maybe [Application])
describeApplicationsResponse_applications = Lens.lens (\DescribeApplicationsResponse' {applications} -> applications) (\s@DescribeApplicationsResponse' {} a -> s {applications = a} :: DescribeApplicationsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The pagination token used to retrieve the next page of results for this
-- operation.
describeApplicationsResponse_nextToken :: Lens.Lens' DescribeApplicationsResponse (Prelude.Maybe Prelude.Text)
describeApplicationsResponse_nextToken = Lens.lens (\DescribeApplicationsResponse' {nextToken} -> nextToken) (\s@DescribeApplicationsResponse' {} a -> s {nextToken = a} :: DescribeApplicationsResponse)

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

instance Prelude.NFData DescribeApplicationsResponse where
  rnf DescribeApplicationsResponse' {..} =
    Prelude.rnf applications
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus