{-# 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.ServiceCatalogAppRegistry.ListApplications
-- 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 of your applications. Results are paginated.
--
-- This operation returns paginated results.
module Amazonka.ServiceCatalogAppRegistry.ListApplications
  ( -- * Creating a Request
    ListApplications (..),
    newListApplications,

    -- * Request Lenses
    listApplications_maxResults,
    listApplications_nextToken,

    -- * Destructuring the Response
    ListApplicationsResponse (..),
    newListApplicationsResponse,

    -- * Response Lenses
    listApplicationsResponse_applications,
    listApplicationsResponse_nextToken,
    listApplicationsResponse_httpStatus,
  )
where

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
import Amazonka.ServiceCatalogAppRegistry.Types

-- | /See:/ 'newListApplications' smart constructor.
data ListApplications = ListApplications'
  { -- | The upper bound of the number of results to return (cannot exceed 25).
    -- If this parameter is omitted, it defaults to 25. This value is optional.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The token to use to get the next page of results after a previous API
    -- call.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListApplications' 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', 'listApplications_maxResults' - The upper bound of the number of results to return (cannot exceed 25).
-- If this parameter is omitted, it defaults to 25. This value is optional.
--
-- 'nextToken', 'listApplications_nextToken' - The token to use to get the next page of results after a previous API
-- call.
newListApplications ::
  ListApplications
newListApplications =
  ListApplications'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The upper bound of the number of results to return (cannot exceed 25).
-- If this parameter is omitted, it defaults to 25. This value is optional.
listApplications_maxResults :: Lens.Lens' ListApplications (Prelude.Maybe Prelude.Natural)
listApplications_maxResults = Lens.lens (\ListApplications' {maxResults} -> maxResults) (\s@ListApplications' {} a -> s {maxResults = a} :: ListApplications)

-- | The token to use to get the next page of results after a previous API
-- call.
listApplications_nextToken :: Lens.Lens' ListApplications (Prelude.Maybe Prelude.Text)
listApplications_nextToken = Lens.lens (\ListApplications' {nextToken} -> nextToken) (\s@ListApplications' {} a -> s {nextToken = a} :: ListApplications)

instance Core.AWSPager ListApplications where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listApplicationsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listApplicationsResponse_applications
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listApplications_nextToken
          Lens..~ rs
          Lens.^? listApplicationsResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

instance Data.ToPath ListApplications where
  toPath = Prelude.const "/applications"

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

-- | /See:/ 'newListApplicationsResponse' smart constructor.
data ListApplicationsResponse = ListApplicationsResponse'
  { -- | This list of applications.
    applications :: Prelude.Maybe [ApplicationSummary],
    -- | The token to use to get the next page of results after a previous API
    -- call.
    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 'ListApplicationsResponse' 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', 'listApplicationsResponse_applications' - This list of applications.
--
-- 'nextToken', 'listApplicationsResponse_nextToken' - The token to use to get the next page of results after a previous API
-- call.
--
-- 'httpStatus', 'listApplicationsResponse_httpStatus' - The response's http status code.
newListApplicationsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListApplicationsResponse
newListApplicationsResponse pHttpStatus_ =
  ListApplicationsResponse'
    { applications =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | This list of applications.
listApplicationsResponse_applications :: Lens.Lens' ListApplicationsResponse (Prelude.Maybe [ApplicationSummary])
listApplicationsResponse_applications = Lens.lens (\ListApplicationsResponse' {applications} -> applications) (\s@ListApplicationsResponse' {} a -> s {applications = a} :: ListApplicationsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token to use to get the next page of results after a previous API
-- call.
listApplicationsResponse_nextToken :: Lens.Lens' ListApplicationsResponse (Prelude.Maybe Prelude.Text)
listApplicationsResponse_nextToken = Lens.lens (\ListApplicationsResponse' {nextToken} -> nextToken) (\s@ListApplicationsResponse' {} a -> s {nextToken = a} :: ListApplicationsResponse)

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

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