{-# 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.TargetTrackingConfiguration
-- 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.TargetTrackingConfiguration 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

-- | __This data type is used with the GameLift FleetIQ and game server
-- groups.__
--
-- Settings for a target-based scaling policy as part of a
-- <https://docs.aws.amazon.com/gamelift/latest/apireference/API_GameServerGroupAutoScalingPolicy.html GameServerGroupAutoScalingPolicy>
-- . 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.
--
-- /See:/ 'newTargetTrackingConfiguration' smart constructor.
data TargetTrackingConfiguration = TargetTrackingConfiguration'
  { -- | Desired value to use with a game server group target-based scaling
    -- policy.
    targetValue :: Prelude.Double
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'TargetTrackingConfiguration' 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:
--
-- 'targetValue', 'targetTrackingConfiguration_targetValue' - Desired value to use with a game server group target-based scaling
-- policy.
newTargetTrackingConfiguration ::
  -- | 'targetValue'
  Prelude.Double ->
  TargetTrackingConfiguration
newTargetTrackingConfiguration pTargetValue_ =
  TargetTrackingConfiguration'
    { targetValue =
        pTargetValue_
    }

-- | Desired value to use with a game server group target-based scaling
-- policy.
targetTrackingConfiguration_targetValue :: Lens.Lens' TargetTrackingConfiguration Prelude.Double
targetTrackingConfiguration_targetValue = Lens.lens (\TargetTrackingConfiguration' {targetValue} -> targetValue) (\s@TargetTrackingConfiguration' {} a -> s {targetValue = a} :: TargetTrackingConfiguration)

instance Prelude.Hashable TargetTrackingConfiguration where
  hashWithSalt _salt TargetTrackingConfiguration' {..} =
    _salt `Prelude.hashWithSalt` targetValue

instance Prelude.NFData TargetTrackingConfiguration where
  rnf TargetTrackingConfiguration' {..} =
    Prelude.rnf targetValue

instance Data.ToJSON TargetTrackingConfiguration where
  toJSON TargetTrackingConfiguration' {..} =
    Data.object
      ( Prelude.catMaybes
          [Prelude.Just ("TargetValue" Data..= targetValue)]
      )