{-# 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.AutoScaling.ExitStandby
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Moves the specified instances out of the standby state.
--
-- After you put the instances back in service, the desired capacity is
-- incremented.
--
-- For more information, see
-- <https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-enter-exit-standby.html Temporarily removing instances from your Auto Scaling group>
-- in the /Amazon EC2 Auto Scaling User Guide/.
module Amazonka.AutoScaling.ExitStandby
  ( -- * Creating a Request
    ExitStandby (..),
    newExitStandby,

    -- * Request Lenses
    exitStandby_instanceIds,
    exitStandby_autoScalingGroupName,

    -- * Destructuring the Response
    ExitStandbyResponse (..),
    newExitStandbyResponse,

    -- * Response Lenses
    exitStandbyResponse_activities,
    exitStandbyResponse_httpStatus,
  )
where

import Amazonka.AutoScaling.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:/ 'newExitStandby' smart constructor.
data ExitStandby = ExitStandby'
  { -- | The IDs of the instances. You can specify up to 20 instances.
    instanceIds :: Prelude.Maybe [Prelude.Text],
    -- | The name of the Auto Scaling group.
    autoScalingGroupName :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ExitStandby' 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:
--
-- 'instanceIds', 'exitStandby_instanceIds' - The IDs of the instances. You can specify up to 20 instances.
--
-- 'autoScalingGroupName', 'exitStandby_autoScalingGroupName' - The name of the Auto Scaling group.
newExitStandby ::
  -- | 'autoScalingGroupName'
  Prelude.Text ->
  ExitStandby
newExitStandby pAutoScalingGroupName_ =
  ExitStandby'
    { instanceIds = Prelude.Nothing,
      autoScalingGroupName = pAutoScalingGroupName_
    }

-- | The IDs of the instances. You can specify up to 20 instances.
exitStandby_instanceIds :: Lens.Lens' ExitStandby (Prelude.Maybe [Prelude.Text])
exitStandby_instanceIds = Lens.lens (\ExitStandby' {instanceIds} -> instanceIds) (\s@ExitStandby' {} a -> s {instanceIds = a} :: ExitStandby) Prelude.. Lens.mapping Lens.coerced

-- | The name of the Auto Scaling group.
exitStandby_autoScalingGroupName :: Lens.Lens' ExitStandby Prelude.Text
exitStandby_autoScalingGroupName = Lens.lens (\ExitStandby' {autoScalingGroupName} -> autoScalingGroupName) (\s@ExitStandby' {} a -> s {autoScalingGroupName = a} :: ExitStandby)

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

instance Prelude.Hashable ExitStandby where
  hashWithSalt _salt ExitStandby' {..} =
    _salt
      `Prelude.hashWithSalt` instanceIds
      `Prelude.hashWithSalt` autoScalingGroupName

instance Prelude.NFData ExitStandby where
  rnf ExitStandby' {..} =
    Prelude.rnf instanceIds
      `Prelude.seq` Prelude.rnf autoScalingGroupName

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

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

instance Data.ToQuery ExitStandby where
  toQuery ExitStandby' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ("ExitStandby" :: Prelude.ByteString),
        "Version"
          Data.=: ("2011-01-01" :: Prelude.ByteString),
        "InstanceIds"
          Data.=: Data.toQuery
            (Data.toQueryList "member" Prelude.<$> instanceIds),
        "AutoScalingGroupName" Data.=: autoScalingGroupName
      ]

-- | /See:/ 'newExitStandbyResponse' smart constructor.
data ExitStandbyResponse = ExitStandbyResponse'
  { -- | The activities related to moving instances out of @Standby@ mode.
    activities :: Prelude.Maybe [Activity],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ExitStandbyResponse' 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:
--
-- 'activities', 'exitStandbyResponse_activities' - The activities related to moving instances out of @Standby@ mode.
--
-- 'httpStatus', 'exitStandbyResponse_httpStatus' - The response's http status code.
newExitStandbyResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ExitStandbyResponse
newExitStandbyResponse pHttpStatus_ =
  ExitStandbyResponse'
    { activities = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The activities related to moving instances out of @Standby@ mode.
exitStandbyResponse_activities :: Lens.Lens' ExitStandbyResponse (Prelude.Maybe [Activity])
exitStandbyResponse_activities = Lens.lens (\ExitStandbyResponse' {activities} -> activities) (\s@ExitStandbyResponse' {} a -> s {activities = a} :: ExitStandbyResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ExitStandbyResponse where
  rnf ExitStandbyResponse' {..} =
    Prelude.rnf activities
      `Prelude.seq` Prelude.rnf httpStatus