{-# 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.CodeDeploy.ListOnPremisesInstances
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Gets a list of names for one or more on-premises instances.
--
-- Unless otherwise specified, both registered and deregistered on-premises
-- instance names are listed. To list only registered or deregistered
-- on-premises instance names, use the registration status parameter.
--
-- This operation returns paginated results.
module Amazonka.CodeDeploy.ListOnPremisesInstances
  ( -- * Creating a Request
    ListOnPremisesInstances (..),
    newListOnPremisesInstances,

    -- * Request Lenses
    listOnPremisesInstances_nextToken,
    listOnPremisesInstances_registrationStatus,
    listOnPremisesInstances_tagFilters,

    -- * Destructuring the Response
    ListOnPremisesInstancesResponse (..),
    newListOnPremisesInstancesResponse,

    -- * Response Lenses
    listOnPremisesInstancesResponse_instanceNames,
    listOnPremisesInstancesResponse_nextToken,
    listOnPremisesInstancesResponse_httpStatus,
  )
where

import Amazonka.CodeDeploy.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

-- | Represents the input of a @ListOnPremisesInstances@ operation.
--
-- /See:/ 'newListOnPremisesInstances' smart constructor.
data ListOnPremisesInstances = ListOnPremisesInstances'
  { -- | An identifier returned from the previous list on-premises instances
    -- call. It can be used to return the next set of on-premises instances in
    -- the list.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The registration status of the on-premises instances:
    --
    -- -   @Deregistered@: Include deregistered on-premises instances in the
    --     resulting list.
    --
    -- -   @Registered@: Include registered on-premises instances in the
    --     resulting list.
    registrationStatus :: Prelude.Maybe RegistrationStatus,
    -- | The on-premises instance tags that are used to restrict the on-premises
    -- instance names returned.
    tagFilters :: Prelude.Maybe [TagFilter]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListOnPremisesInstances' 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', 'listOnPremisesInstances_nextToken' - An identifier returned from the previous list on-premises instances
-- call. It can be used to return the next set of on-premises instances in
-- the list.
--
-- 'registrationStatus', 'listOnPremisesInstances_registrationStatus' - The registration status of the on-premises instances:
--
-- -   @Deregistered@: Include deregistered on-premises instances in the
--     resulting list.
--
-- -   @Registered@: Include registered on-premises instances in the
--     resulting list.
--
-- 'tagFilters', 'listOnPremisesInstances_tagFilters' - The on-premises instance tags that are used to restrict the on-premises
-- instance names returned.
newListOnPremisesInstances ::
  ListOnPremisesInstances
newListOnPremisesInstances =
  ListOnPremisesInstances'
    { nextToken =
        Prelude.Nothing,
      registrationStatus = Prelude.Nothing,
      tagFilters = Prelude.Nothing
    }

-- | An identifier returned from the previous list on-premises instances
-- call. It can be used to return the next set of on-premises instances in
-- the list.
listOnPremisesInstances_nextToken :: Lens.Lens' ListOnPremisesInstances (Prelude.Maybe Prelude.Text)
listOnPremisesInstances_nextToken = Lens.lens (\ListOnPremisesInstances' {nextToken} -> nextToken) (\s@ListOnPremisesInstances' {} a -> s {nextToken = a} :: ListOnPremisesInstances)

-- | The registration status of the on-premises instances:
--
-- -   @Deregistered@: Include deregistered on-premises instances in the
--     resulting list.
--
-- -   @Registered@: Include registered on-premises instances in the
--     resulting list.
listOnPremisesInstances_registrationStatus :: Lens.Lens' ListOnPremisesInstances (Prelude.Maybe RegistrationStatus)
listOnPremisesInstances_registrationStatus = Lens.lens (\ListOnPremisesInstances' {registrationStatus} -> registrationStatus) (\s@ListOnPremisesInstances' {} a -> s {registrationStatus = a} :: ListOnPremisesInstances)

-- | The on-premises instance tags that are used to restrict the on-premises
-- instance names returned.
listOnPremisesInstances_tagFilters :: Lens.Lens' ListOnPremisesInstances (Prelude.Maybe [TagFilter])
listOnPremisesInstances_tagFilters = Lens.lens (\ListOnPremisesInstances' {tagFilters} -> tagFilters) (\s@ListOnPremisesInstances' {} a -> s {tagFilters = a} :: ListOnPremisesInstances) Prelude.. Lens.mapping Lens.coerced

instance Core.AWSPager ListOnPremisesInstances where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listOnPremisesInstancesResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listOnPremisesInstancesResponse_instanceNames
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listOnPremisesInstances_nextToken
          Lens..~ rs
          Lens.^? listOnPremisesInstancesResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListOnPremisesInstances where
  hashWithSalt _salt ListOnPremisesInstances' {..} =
    _salt
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` registrationStatus
      `Prelude.hashWithSalt` tagFilters

instance Prelude.NFData ListOnPremisesInstances where
  rnf ListOnPremisesInstances' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf registrationStatus
      `Prelude.seq` Prelude.rnf tagFilters

instance Data.ToHeaders ListOnPremisesInstances where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "CodeDeploy_20141006.ListOnPremisesInstances" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListOnPremisesInstances where
  toJSON ListOnPremisesInstances' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("nextToken" Data..=) Prelude.<$> nextToken,
            ("registrationStatus" Data..=)
              Prelude.<$> registrationStatus,
            ("tagFilters" Data..=) Prelude.<$> tagFilters
          ]
      )

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

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

-- | Represents the output of the list on-premises instances operation.
--
-- /See:/ 'newListOnPremisesInstancesResponse' smart constructor.
data ListOnPremisesInstancesResponse = ListOnPremisesInstancesResponse'
  { -- | The list of matching on-premises instance names.
    instanceNames :: Prelude.Maybe [Prelude.Text],
    -- | If a large amount of information is returned, an identifier is also
    -- returned. It can be used in a subsequent list on-premises instances call
    -- to return the next set of on-premises instances in the list.
    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 'ListOnPremisesInstancesResponse' 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:
--
-- 'instanceNames', 'listOnPremisesInstancesResponse_instanceNames' - The list of matching on-premises instance names.
--
-- 'nextToken', 'listOnPremisesInstancesResponse_nextToken' - If a large amount of information is returned, an identifier is also
-- returned. It can be used in a subsequent list on-premises instances call
-- to return the next set of on-premises instances in the list.
--
-- 'httpStatus', 'listOnPremisesInstancesResponse_httpStatus' - The response's http status code.
newListOnPremisesInstancesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListOnPremisesInstancesResponse
newListOnPremisesInstancesResponse pHttpStatus_ =
  ListOnPremisesInstancesResponse'
    { instanceNames =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The list of matching on-premises instance names.
listOnPremisesInstancesResponse_instanceNames :: Lens.Lens' ListOnPremisesInstancesResponse (Prelude.Maybe [Prelude.Text])
listOnPremisesInstancesResponse_instanceNames = Lens.lens (\ListOnPremisesInstancesResponse' {instanceNames} -> instanceNames) (\s@ListOnPremisesInstancesResponse' {} a -> s {instanceNames = a} :: ListOnPremisesInstancesResponse) Prelude.. Lens.mapping Lens.coerced

-- | If a large amount of information is returned, an identifier is also
-- returned. It can be used in a subsequent list on-premises instances call
-- to return the next set of on-premises instances in the list.
listOnPremisesInstancesResponse_nextToken :: Lens.Lens' ListOnPremisesInstancesResponse (Prelude.Maybe Prelude.Text)
listOnPremisesInstancesResponse_nextToken = Lens.lens (\ListOnPremisesInstancesResponse' {nextToken} -> nextToken) (\s@ListOnPremisesInstancesResponse' {} a -> s {nextToken = a} :: ListOnPremisesInstancesResponse)

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

instance
  Prelude.NFData
    ListOnPremisesInstancesResponse
  where
  rnf ListOnPremisesInstancesResponse' {..} =
    Prelude.rnf instanceNames
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus