{-# 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.Evidently.UpdateFeature
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Updates an existing feature.
--
-- You can\'t use this operation to update the tags of an existing feature.
-- Instead, use
-- <https://docs.aws.amazon.com/cloudwatchevidently/latest/APIReference/API_TagResource.html TagResource>.
module Amazonka.Evidently.UpdateFeature
  ( -- * Creating a Request
    UpdateFeature (..),
    newUpdateFeature,

    -- * Request Lenses
    updateFeature_addOrUpdateVariations,
    updateFeature_defaultVariation,
    updateFeature_description,
    updateFeature_entityOverrides,
    updateFeature_evaluationStrategy,
    updateFeature_removeVariations,
    updateFeature_feature,
    updateFeature_project,

    -- * Destructuring the Response
    UpdateFeatureResponse (..),
    newUpdateFeatureResponse,

    -- * Response Lenses
    updateFeatureResponse_httpStatus,
    updateFeatureResponse_feature,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.Evidently.Types
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newUpdateFeature' smart constructor.
data UpdateFeature = UpdateFeature'
  { -- | To update variation configurations for this feature, or add new ones,
    -- specify this structure. In this array, include any variations that you
    -- want to add or update. If the array includes a variation name that
    -- already exists for this feature, it is updated. If it includes a new
    -- variation name, it is added as a new variation.
    addOrUpdateVariations :: Prelude.Maybe (Prelude.NonEmpty VariationConfig),
    -- | The name of the variation to use as the default variation. The default
    -- variation is served to users who are not allocated to any ongoing
    -- launches or experiments of this feature.
    defaultVariation :: Prelude.Maybe Prelude.Text,
    -- | An optional description of the feature.
    description :: Prelude.Maybe Prelude.Text,
    -- | Specified users that should always be served a specific variation of a
    -- feature. Each user is specified by a key-value pair . For each key,
    -- specify a user by entering their user ID, account ID, or some other
    -- identifier. For the value, specify the name of the variation that they
    -- are to be served.
    entityOverrides :: Prelude.Maybe (Prelude.HashMap Prelude.Text Prelude.Text),
    -- | Specify @ALL_RULES@ to activate the traffic allocation specified by any
    -- ongoing launches or experiments. Specify @DEFAULT_VARIATION@ to serve
    -- the default variation to all users instead.
    evaluationStrategy :: Prelude.Maybe FeatureEvaluationStrategy,
    -- | Removes a variation from the feature. If the variation you specify
    -- doesn\'t exist, then this makes no change and does not report an error.
    --
    -- This operation fails if you try to remove a variation that is part of an
    -- ongoing launch or experiment.
    removeVariations :: Prelude.Maybe [Prelude.Text],
    -- | The name of the feature to be updated.
    feature :: Prelude.Text,
    -- | The name or ARN of the project that contains the feature to be updated.
    project :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'UpdateFeature' 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:
--
-- 'addOrUpdateVariations', 'updateFeature_addOrUpdateVariations' - To update variation configurations for this feature, or add new ones,
-- specify this structure. In this array, include any variations that you
-- want to add or update. If the array includes a variation name that
-- already exists for this feature, it is updated. If it includes a new
-- variation name, it is added as a new variation.
--
-- 'defaultVariation', 'updateFeature_defaultVariation' - The name of the variation to use as the default variation. The default
-- variation is served to users who are not allocated to any ongoing
-- launches or experiments of this feature.
--
-- 'description', 'updateFeature_description' - An optional description of the feature.
--
-- 'entityOverrides', 'updateFeature_entityOverrides' - Specified users that should always be served a specific variation of a
-- feature. Each user is specified by a key-value pair . For each key,
-- specify a user by entering their user ID, account ID, or some other
-- identifier. For the value, specify the name of the variation that they
-- are to be served.
--
-- 'evaluationStrategy', 'updateFeature_evaluationStrategy' - Specify @ALL_RULES@ to activate the traffic allocation specified by any
-- ongoing launches or experiments. Specify @DEFAULT_VARIATION@ to serve
-- the default variation to all users instead.
--
-- 'removeVariations', 'updateFeature_removeVariations' - Removes a variation from the feature. If the variation you specify
-- doesn\'t exist, then this makes no change and does not report an error.
--
-- This operation fails if you try to remove a variation that is part of an
-- ongoing launch or experiment.
--
-- 'feature', 'updateFeature_feature' - The name of the feature to be updated.
--
-- 'project', 'updateFeature_project' - The name or ARN of the project that contains the feature to be updated.
newUpdateFeature ::
  -- | 'feature'
  Prelude.Text ->
  -- | 'project'
  Prelude.Text ->
  UpdateFeature
newUpdateFeature pFeature_ pProject_ =
  UpdateFeature'
    { addOrUpdateVariations =
        Prelude.Nothing,
      defaultVariation = Prelude.Nothing,
      description = Prelude.Nothing,
      entityOverrides = Prelude.Nothing,
      evaluationStrategy = Prelude.Nothing,
      removeVariations = Prelude.Nothing,
      feature = pFeature_,
      project = pProject_
    }

-- | To update variation configurations for this feature, or add new ones,
-- specify this structure. In this array, include any variations that you
-- want to add or update. If the array includes a variation name that
-- already exists for this feature, it is updated. If it includes a new
-- variation name, it is added as a new variation.
updateFeature_addOrUpdateVariations :: Lens.Lens' UpdateFeature (Prelude.Maybe (Prelude.NonEmpty VariationConfig))
updateFeature_addOrUpdateVariations = Lens.lens (\UpdateFeature' {addOrUpdateVariations} -> addOrUpdateVariations) (\s@UpdateFeature' {} a -> s {addOrUpdateVariations = a} :: UpdateFeature) Prelude.. Lens.mapping Lens.coerced

-- | The name of the variation to use as the default variation. The default
-- variation is served to users who are not allocated to any ongoing
-- launches or experiments of this feature.
updateFeature_defaultVariation :: Lens.Lens' UpdateFeature (Prelude.Maybe Prelude.Text)
updateFeature_defaultVariation = Lens.lens (\UpdateFeature' {defaultVariation} -> defaultVariation) (\s@UpdateFeature' {} a -> s {defaultVariation = a} :: UpdateFeature)

-- | An optional description of the feature.
updateFeature_description :: Lens.Lens' UpdateFeature (Prelude.Maybe Prelude.Text)
updateFeature_description = Lens.lens (\UpdateFeature' {description} -> description) (\s@UpdateFeature' {} a -> s {description = a} :: UpdateFeature)

-- | Specified users that should always be served a specific variation of a
-- feature. Each user is specified by a key-value pair . For each key,
-- specify a user by entering their user ID, account ID, or some other
-- identifier. For the value, specify the name of the variation that they
-- are to be served.
updateFeature_entityOverrides :: Lens.Lens' UpdateFeature (Prelude.Maybe (Prelude.HashMap Prelude.Text Prelude.Text))
updateFeature_entityOverrides = Lens.lens (\UpdateFeature' {entityOverrides} -> entityOverrides) (\s@UpdateFeature' {} a -> s {entityOverrides = a} :: UpdateFeature) Prelude.. Lens.mapping Lens.coerced

-- | Specify @ALL_RULES@ to activate the traffic allocation specified by any
-- ongoing launches or experiments. Specify @DEFAULT_VARIATION@ to serve
-- the default variation to all users instead.
updateFeature_evaluationStrategy :: Lens.Lens' UpdateFeature (Prelude.Maybe FeatureEvaluationStrategy)
updateFeature_evaluationStrategy = Lens.lens (\UpdateFeature' {evaluationStrategy} -> evaluationStrategy) (\s@UpdateFeature' {} a -> s {evaluationStrategy = a} :: UpdateFeature)

-- | Removes a variation from the feature. If the variation you specify
-- doesn\'t exist, then this makes no change and does not report an error.
--
-- This operation fails if you try to remove a variation that is part of an
-- ongoing launch or experiment.
updateFeature_removeVariations :: Lens.Lens' UpdateFeature (Prelude.Maybe [Prelude.Text])
updateFeature_removeVariations = Lens.lens (\UpdateFeature' {removeVariations} -> removeVariations) (\s@UpdateFeature' {} a -> s {removeVariations = a} :: UpdateFeature) Prelude.. Lens.mapping Lens.coerced

-- | The name of the feature to be updated.
updateFeature_feature :: Lens.Lens' UpdateFeature Prelude.Text
updateFeature_feature = Lens.lens (\UpdateFeature' {feature} -> feature) (\s@UpdateFeature' {} a -> s {feature = a} :: UpdateFeature)

-- | The name or ARN of the project that contains the feature to be updated.
updateFeature_project :: Lens.Lens' UpdateFeature Prelude.Text
updateFeature_project = Lens.lens (\UpdateFeature' {project} -> project) (\s@UpdateFeature' {} a -> s {project = a} :: UpdateFeature)

instance Core.AWSRequest UpdateFeature where
  type
    AWSResponse UpdateFeature =
      UpdateFeatureResponse
  request overrides =
    Request.patchJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          UpdateFeatureResponse'
            Prelude.<$> (Prelude.pure (Prelude.fromEnum s))
            Prelude.<*> (x Data..:> "feature")
      )

instance Prelude.Hashable UpdateFeature where
  hashWithSalt _salt UpdateFeature' {..} =
    _salt
      `Prelude.hashWithSalt` addOrUpdateVariations
      `Prelude.hashWithSalt` defaultVariation
      `Prelude.hashWithSalt` description
      `Prelude.hashWithSalt` entityOverrides
      `Prelude.hashWithSalt` evaluationStrategy
      `Prelude.hashWithSalt` removeVariations
      `Prelude.hashWithSalt` feature
      `Prelude.hashWithSalt` project

instance Prelude.NFData UpdateFeature where
  rnf UpdateFeature' {..} =
    Prelude.rnf addOrUpdateVariations
      `Prelude.seq` Prelude.rnf defaultVariation
      `Prelude.seq` Prelude.rnf description
      `Prelude.seq` Prelude.rnf entityOverrides
      `Prelude.seq` Prelude.rnf evaluationStrategy
      `Prelude.seq` Prelude.rnf removeVariations
      `Prelude.seq` Prelude.rnf feature
      `Prelude.seq` Prelude.rnf project

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

instance Data.ToJSON UpdateFeature where
  toJSON UpdateFeature' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("addOrUpdateVariations" Data..=)
              Prelude.<$> addOrUpdateVariations,
            ("defaultVariation" Data..=)
              Prelude.<$> defaultVariation,
            ("description" Data..=) Prelude.<$> description,
            ("entityOverrides" Data..=)
              Prelude.<$> entityOverrides,
            ("evaluationStrategy" Data..=)
              Prelude.<$> evaluationStrategy,
            ("removeVariations" Data..=)
              Prelude.<$> removeVariations
          ]
      )

instance Data.ToPath UpdateFeature where
  toPath UpdateFeature' {..} =
    Prelude.mconcat
      [ "/projects/",
        Data.toBS project,
        "/features/",
        Data.toBS feature
      ]

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

-- | /See:/ 'newUpdateFeatureResponse' smart constructor.
data UpdateFeatureResponse = UpdateFeatureResponse'
  { -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | A structure that contains information about the updated feature.
    feature :: Feature
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'UpdateFeatureResponse' 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:
--
-- 'httpStatus', 'updateFeatureResponse_httpStatus' - The response's http status code.
--
-- 'feature', 'updateFeatureResponse_feature' - A structure that contains information about the updated feature.
newUpdateFeatureResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  -- | 'feature'
  Feature ->
  UpdateFeatureResponse
newUpdateFeatureResponse pHttpStatus_ pFeature_ =
  UpdateFeatureResponse'
    { httpStatus = pHttpStatus_,
      feature = pFeature_
    }

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

-- | A structure that contains information about the updated feature.
updateFeatureResponse_feature :: Lens.Lens' UpdateFeatureResponse Feature
updateFeatureResponse_feature = Lens.lens (\UpdateFeatureResponse' {feature} -> feature) (\s@UpdateFeatureResponse' {} a -> s {feature = a} :: UpdateFeatureResponse)

instance Prelude.NFData UpdateFeatureResponse where
  rnf UpdateFeatureResponse' {..} =
    Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf feature