{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.GameLift.Types.GameServerGroupAutoScalingPolicy
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
module Amazonka.GameLift.Types.GameServerGroupAutoScalingPolicy where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.GameLift.Types.TargetTrackingConfiguration
import qualified Amazonka.Prelude as Prelude

-- | __This data type is used with the GameLift FleetIQ and game server
-- groups.__
--
-- Configuration settings for intelligent automatic scaling that uses
-- target tracking. These settings are used to add an Auto Scaling policy
-- when creating the corresponding Auto Scaling group. After the Auto
-- Scaling group is created, all updates to Auto Scaling policies,
-- including changing this policy and adding or removing other policies, is
-- done directly on the Auto Scaling group.
--
-- /See:/ 'newGameServerGroupAutoScalingPolicy' smart constructor.
data GameServerGroupAutoScalingPolicy = GameServerGroupAutoScalingPolicy'
  { -- | Length of time, in seconds, it takes for a new instance to start new
    -- game server processes and register with GameLift FleetIQ. Specifying a
    -- warm-up time can be useful, particularly with game servers that take a
    -- long time to start up, because it avoids prematurely starting new
    -- instances.
    estimatedInstanceWarmup :: Prelude.Maybe Prelude.Natural,
    -- | Settings for a target-based scaling policy applied to Auto Scaling
    -- group. These settings are used to create a target-based policy that
    -- tracks the GameLift FleetIQ metric @\"PercentUtilizedGameServers\"@ and
    -- specifies a target value for the metric. As player usage changes, the
    -- policy triggers to adjust the game server group capacity so that the
    -- metric returns to the target value.
    targetTrackingConfiguration :: TargetTrackingConfiguration
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GameServerGroupAutoScalingPolicy' 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:
--
-- 'estimatedInstanceWarmup', 'gameServerGroupAutoScalingPolicy_estimatedInstanceWarmup' - Length of time, in seconds, it takes for a new instance to start new
-- game server processes and register with GameLift FleetIQ. Specifying a
-- warm-up time can be useful, particularly with game servers that take a
-- long time to start up, because it avoids prematurely starting new
-- instances.
--
-- 'targetTrackingConfiguration', 'gameServerGroupAutoScalingPolicy_targetTrackingConfiguration' - Settings for a target-based scaling policy applied to Auto Scaling
-- group. These settings are used to create a target-based policy that
-- tracks the GameLift FleetIQ metric @\"PercentUtilizedGameServers\"@ and
-- specifies a target value for the metric. As player usage changes, the
-- policy triggers to adjust the game server group capacity so that the
-- metric returns to the target value.
newGameServerGroupAutoScalingPolicy ::
  -- | 'targetTrackingConfiguration'
  TargetTrackingConfiguration ->
  GameServerGroupAutoScalingPolicy
newGameServerGroupAutoScalingPolicy
  pTargetTrackingConfiguration_ =
    GameServerGroupAutoScalingPolicy'
      { estimatedInstanceWarmup =
          Prelude.Nothing,
        targetTrackingConfiguration =
          pTargetTrackingConfiguration_
      }

-- | Length of time, in seconds, it takes for a new instance to start new
-- game server processes and register with GameLift FleetIQ. Specifying a
-- warm-up time can be useful, particularly with game servers that take a
-- long time to start up, because it avoids prematurely starting new
-- instances.
gameServerGroupAutoScalingPolicy_estimatedInstanceWarmup :: Lens.Lens' GameServerGroupAutoScalingPolicy (Prelude.Maybe Prelude.Natural)
gameServerGroupAutoScalingPolicy_estimatedInstanceWarmup = Lens.lens (\GameServerGroupAutoScalingPolicy' {estimatedInstanceWarmup} -> estimatedInstanceWarmup) (\s@GameServerGroupAutoScalingPolicy' {} a -> s {estimatedInstanceWarmup = a} :: GameServerGroupAutoScalingPolicy)

-- | Settings for a target-based scaling policy applied to Auto Scaling
-- group. These settings are used to create a target-based policy that
-- tracks the GameLift FleetIQ metric @\"PercentUtilizedGameServers\"@ and
-- specifies a target value for the metric. As player usage changes, the
-- policy triggers to adjust the game server group capacity so that the
-- metric returns to the target value.
gameServerGroupAutoScalingPolicy_targetTrackingConfiguration :: Lens.Lens' GameServerGroupAutoScalingPolicy TargetTrackingConfiguration
gameServerGroupAutoScalingPolicy_targetTrackingConfiguration = Lens.lens (\GameServerGroupAutoScalingPolicy' {targetTrackingConfiguration} -> targetTrackingConfiguration) (\s@GameServerGroupAutoScalingPolicy' {} a -> s {targetTrackingConfiguration = a} :: GameServerGroupAutoScalingPolicy)

instance
  Prelude.Hashable
    GameServerGroupAutoScalingPolicy
  where
  hashWithSalt
    _salt
    GameServerGroupAutoScalingPolicy' {..} =
      _salt
        `Prelude.hashWithSalt` estimatedInstanceWarmup
        `Prelude.hashWithSalt` targetTrackingConfiguration

instance
  Prelude.NFData
    GameServerGroupAutoScalingPolicy
  where
  rnf GameServerGroupAutoScalingPolicy' {..} =
    Prelude.rnf estimatedInstanceWarmup
      `Prelude.seq` Prelude.rnf targetTrackingConfiguration

instance Data.ToJSON GameServerGroupAutoScalingPolicy where
  toJSON GameServerGroupAutoScalingPolicy' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("EstimatedInstanceWarmup" Data..=)
              Prelude.<$> estimatedInstanceWarmup,
            Prelude.Just
              ( "TargetTrackingConfiguration"
                  Data..= targetTrackingConfiguration
              )
          ]
      )