{-# 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.ComputeOptimizer.GetEC2InstanceRecommendations
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns Amazon EC2 instance recommendations.
--
-- Compute Optimizer generates recommendations for Amazon Elastic Compute
-- Cloud (Amazon EC2) instances that meet a specific set of requirements.
-- For more information, see the
-- <https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html Supported resources and requirements>
-- in the /Compute Optimizer User Guide/.
module Amazonka.ComputeOptimizer.GetEC2InstanceRecommendations
  ( -- * Creating a Request
    GetEC2InstanceRecommendations (..),
    newGetEC2InstanceRecommendations,

    -- * Request Lenses
    getEC2InstanceRecommendations_accountIds,
    getEC2InstanceRecommendations_filters,
    getEC2InstanceRecommendations_instanceArns,
    getEC2InstanceRecommendations_maxResults,
    getEC2InstanceRecommendations_nextToken,
    getEC2InstanceRecommendations_recommendationPreferences,

    -- * Destructuring the Response
    GetEC2InstanceRecommendationsResponse (..),
    newGetEC2InstanceRecommendationsResponse,

    -- * Response Lenses
    getEC2InstanceRecommendationsResponse_errors,
    getEC2InstanceRecommendationsResponse_instanceRecommendations,
    getEC2InstanceRecommendationsResponse_nextToken,
    getEC2InstanceRecommendationsResponse_httpStatus,
  )
where

import Amazonka.ComputeOptimizer.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:/ 'newGetEC2InstanceRecommendations' smart constructor.
data GetEC2InstanceRecommendations = GetEC2InstanceRecommendations'
  { -- | The ID of the Amazon Web Services account for which to return instance
    -- recommendations.
    --
    -- If your account is the management account of an organization, use this
    -- parameter to specify the member account for which you want to return
    -- instance recommendations.
    --
    -- Only one account ID can be specified per request.
    accountIds :: Prelude.Maybe [Prelude.Text],
    -- | An array of objects to specify a filter that returns a more specific
    -- list of instance recommendations.
    filters :: Prelude.Maybe [Filter],
    -- | The Amazon Resource Name (ARN) of the instances for which to return
    -- recommendations.
    instanceArns :: Prelude.Maybe [Prelude.Text],
    -- | The maximum number of instance recommendations to return with a single
    -- request.
    --
    -- To retrieve the remaining results, make another request with the
    -- returned @nextToken@ value.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The token to advance to the next page of instance recommendations.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | An object to specify the preferences for the Amazon EC2 instance
    -- recommendations to return in the response.
    recommendationPreferences :: Prelude.Maybe RecommendationPreferences
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetEC2InstanceRecommendations' 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:
--
-- 'accountIds', 'getEC2InstanceRecommendations_accountIds' - The ID of the Amazon Web Services account for which to return instance
-- recommendations.
--
-- If your account is the management account of an organization, use this
-- parameter to specify the member account for which you want to return
-- instance recommendations.
--
-- Only one account ID can be specified per request.
--
-- 'filters', 'getEC2InstanceRecommendations_filters' - An array of objects to specify a filter that returns a more specific
-- list of instance recommendations.
--
-- 'instanceArns', 'getEC2InstanceRecommendations_instanceArns' - The Amazon Resource Name (ARN) of the instances for which to return
-- recommendations.
--
-- 'maxResults', 'getEC2InstanceRecommendations_maxResults' - The maximum number of instance recommendations to return with a single
-- request.
--
-- To retrieve the remaining results, make another request with the
-- returned @nextToken@ value.
--
-- 'nextToken', 'getEC2InstanceRecommendations_nextToken' - The token to advance to the next page of instance recommendations.
--
-- 'recommendationPreferences', 'getEC2InstanceRecommendations_recommendationPreferences' - An object to specify the preferences for the Amazon EC2 instance
-- recommendations to return in the response.
newGetEC2InstanceRecommendations ::
  GetEC2InstanceRecommendations
newGetEC2InstanceRecommendations =
  GetEC2InstanceRecommendations'
    { accountIds =
        Prelude.Nothing,
      filters = Prelude.Nothing,
      instanceArns = Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      recommendationPreferences = Prelude.Nothing
    }

-- | The ID of the Amazon Web Services account for which to return instance
-- recommendations.
--
-- If your account is the management account of an organization, use this
-- parameter to specify the member account for which you want to return
-- instance recommendations.
--
-- Only one account ID can be specified per request.
getEC2InstanceRecommendations_accountIds :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe [Prelude.Text])
getEC2InstanceRecommendations_accountIds = Lens.lens (\GetEC2InstanceRecommendations' {accountIds} -> accountIds) (\s@GetEC2InstanceRecommendations' {} a -> s {accountIds = a} :: GetEC2InstanceRecommendations) Prelude.. Lens.mapping Lens.coerced

-- | An array of objects to specify a filter that returns a more specific
-- list of instance recommendations.
getEC2InstanceRecommendations_filters :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe [Filter])
getEC2InstanceRecommendations_filters = Lens.lens (\GetEC2InstanceRecommendations' {filters} -> filters) (\s@GetEC2InstanceRecommendations' {} a -> s {filters = a} :: GetEC2InstanceRecommendations) Prelude.. Lens.mapping Lens.coerced

-- | The Amazon Resource Name (ARN) of the instances for which to return
-- recommendations.
getEC2InstanceRecommendations_instanceArns :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe [Prelude.Text])
getEC2InstanceRecommendations_instanceArns = Lens.lens (\GetEC2InstanceRecommendations' {instanceArns} -> instanceArns) (\s@GetEC2InstanceRecommendations' {} a -> s {instanceArns = a} :: GetEC2InstanceRecommendations) Prelude.. Lens.mapping Lens.coerced

-- | The maximum number of instance recommendations to return with a single
-- request.
--
-- To retrieve the remaining results, make another request with the
-- returned @nextToken@ value.
getEC2InstanceRecommendations_maxResults :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe Prelude.Natural)
getEC2InstanceRecommendations_maxResults = Lens.lens (\GetEC2InstanceRecommendations' {maxResults} -> maxResults) (\s@GetEC2InstanceRecommendations' {} a -> s {maxResults = a} :: GetEC2InstanceRecommendations)

-- | The token to advance to the next page of instance recommendations.
getEC2InstanceRecommendations_nextToken :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe Prelude.Text)
getEC2InstanceRecommendations_nextToken = Lens.lens (\GetEC2InstanceRecommendations' {nextToken} -> nextToken) (\s@GetEC2InstanceRecommendations' {} a -> s {nextToken = a} :: GetEC2InstanceRecommendations)

-- | An object to specify the preferences for the Amazon EC2 instance
-- recommendations to return in the response.
getEC2InstanceRecommendations_recommendationPreferences :: Lens.Lens' GetEC2InstanceRecommendations (Prelude.Maybe RecommendationPreferences)
getEC2InstanceRecommendations_recommendationPreferences = Lens.lens (\GetEC2InstanceRecommendations' {recommendationPreferences} -> recommendationPreferences) (\s@GetEC2InstanceRecommendations' {} a -> s {recommendationPreferences = a} :: GetEC2InstanceRecommendations)

instance
  Core.AWSRequest
    GetEC2InstanceRecommendations
  where
  type
    AWSResponse GetEC2InstanceRecommendations =
      GetEC2InstanceRecommendationsResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          GetEC2InstanceRecommendationsResponse'
            Prelude.<$> (x Data..?> "errors" Core..!@ Prelude.mempty)
            Prelude.<*> ( x
                            Data..?> "instanceRecommendations"
                            Core..!@ Prelude.mempty
                        )
            Prelude.<*> (x Data..?> "nextToken")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance
  Prelude.Hashable
    GetEC2InstanceRecommendations
  where
  hashWithSalt _salt GetEC2InstanceRecommendations' {..} =
    _salt
      `Prelude.hashWithSalt` accountIds
      `Prelude.hashWithSalt` filters
      `Prelude.hashWithSalt` instanceArns
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` recommendationPreferences

instance Prelude.NFData GetEC2InstanceRecommendations where
  rnf GetEC2InstanceRecommendations' {..} =
    Prelude.rnf accountIds
      `Prelude.seq` Prelude.rnf filters
      `Prelude.seq` Prelude.rnf instanceArns
      `Prelude.seq` Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf recommendationPreferences

instance Data.ToHeaders GetEC2InstanceRecommendations where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "ComputeOptimizerService.GetEC2InstanceRecommendations" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.0" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON GetEC2InstanceRecommendations where
  toJSON GetEC2InstanceRecommendations' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("accountIds" Data..=) Prelude.<$> accountIds,
            ("filters" Data..=) Prelude.<$> filters,
            ("instanceArns" Data..=) Prelude.<$> instanceArns,
            ("maxResults" Data..=) Prelude.<$> maxResults,
            ("nextToken" Data..=) Prelude.<$> nextToken,
            ("recommendationPreferences" Data..=)
              Prelude.<$> recommendationPreferences
          ]
      )

instance Data.ToPath GetEC2InstanceRecommendations where
  toPath = Prelude.const "/"

instance Data.ToQuery GetEC2InstanceRecommendations where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newGetEC2InstanceRecommendationsResponse' smart constructor.
data GetEC2InstanceRecommendationsResponse = GetEC2InstanceRecommendationsResponse'
  { -- | An array of objects that describe errors of the request.
    --
    -- For example, an error is returned if you request recommendations for an
    -- instance of an unsupported instance family.
    errors :: Prelude.Maybe [GetRecommendationError],
    -- | An array of objects that describe instance recommendations.
    instanceRecommendations :: Prelude.Maybe [InstanceRecommendation],
    -- | The token to use to advance to the next page of instance
    -- recommendations.
    --
    -- This value is null when there are no more pages of instance
    -- recommendations to return.
    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 'GetEC2InstanceRecommendationsResponse' 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:
--
-- 'errors', 'getEC2InstanceRecommendationsResponse_errors' - An array of objects that describe errors of the request.
--
-- For example, an error is returned if you request recommendations for an
-- instance of an unsupported instance family.
--
-- 'instanceRecommendations', 'getEC2InstanceRecommendationsResponse_instanceRecommendations' - An array of objects that describe instance recommendations.
--
-- 'nextToken', 'getEC2InstanceRecommendationsResponse_nextToken' - The token to use to advance to the next page of instance
-- recommendations.
--
-- This value is null when there are no more pages of instance
-- recommendations to return.
--
-- 'httpStatus', 'getEC2InstanceRecommendationsResponse_httpStatus' - The response's http status code.
newGetEC2InstanceRecommendationsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetEC2InstanceRecommendationsResponse
newGetEC2InstanceRecommendationsResponse pHttpStatus_ =
  GetEC2InstanceRecommendationsResponse'
    { errors =
        Prelude.Nothing,
      instanceRecommendations =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | An array of objects that describe errors of the request.
--
-- For example, an error is returned if you request recommendations for an
-- instance of an unsupported instance family.
getEC2InstanceRecommendationsResponse_errors :: Lens.Lens' GetEC2InstanceRecommendationsResponse (Prelude.Maybe [GetRecommendationError])
getEC2InstanceRecommendationsResponse_errors = Lens.lens (\GetEC2InstanceRecommendationsResponse' {errors} -> errors) (\s@GetEC2InstanceRecommendationsResponse' {} a -> s {errors = a} :: GetEC2InstanceRecommendationsResponse) Prelude.. Lens.mapping Lens.coerced

-- | An array of objects that describe instance recommendations.
getEC2InstanceRecommendationsResponse_instanceRecommendations :: Lens.Lens' GetEC2InstanceRecommendationsResponse (Prelude.Maybe [InstanceRecommendation])
getEC2InstanceRecommendationsResponse_instanceRecommendations = Lens.lens (\GetEC2InstanceRecommendationsResponse' {instanceRecommendations} -> instanceRecommendations) (\s@GetEC2InstanceRecommendationsResponse' {} a -> s {instanceRecommendations = a} :: GetEC2InstanceRecommendationsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token to use to advance to the next page of instance
-- recommendations.
--
-- This value is null when there are no more pages of instance
-- recommendations to return.
getEC2InstanceRecommendationsResponse_nextToken :: Lens.Lens' GetEC2InstanceRecommendationsResponse (Prelude.Maybe Prelude.Text)
getEC2InstanceRecommendationsResponse_nextToken = Lens.lens (\GetEC2InstanceRecommendationsResponse' {nextToken} -> nextToken) (\s@GetEC2InstanceRecommendationsResponse' {} a -> s {nextToken = a} :: GetEC2InstanceRecommendationsResponse)

-- | The response's http status code.
getEC2InstanceRecommendationsResponse_httpStatus :: Lens.Lens' GetEC2InstanceRecommendationsResponse Prelude.Int
getEC2InstanceRecommendationsResponse_httpStatus = Lens.lens (\GetEC2InstanceRecommendationsResponse' {httpStatus} -> httpStatus) (\s@GetEC2InstanceRecommendationsResponse' {} a -> s {httpStatus = a} :: GetEC2InstanceRecommendationsResponse)

instance
  Prelude.NFData
    GetEC2InstanceRecommendationsResponse
  where
  rnf GetEC2InstanceRecommendationsResponse' {..} =
    Prelude.rnf errors
      `Prelude.seq` Prelude.rnf instanceRecommendations
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus