{-# 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.MachineLearning.Predict
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Generates a prediction for the observation using the specified
-- @ML Model@.
--
-- __Note:__ Not all response parameters will be populated. Whether a
-- response parameter is populated depends on the type of model requested.
module Amazonka.MachineLearning.Predict
  ( -- * Creating a Request
    Predict (..),
    newPredict,

    -- * Request Lenses
    predict_mLModelId,
    predict_record,
    predict_predictEndpoint,

    -- * Destructuring the Response
    PredictResponse (..),
    newPredictResponse,

    -- * Response Lenses
    predictResponse_prediction,
    predictResponse_httpStatus,
  )
where

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

-- | /See:/ 'newPredict' smart constructor.
data Predict = Predict'
  { -- | A unique identifier of the @MLModel@.
    mLModelId :: Prelude.Text,
    record :: Prelude.HashMap Prelude.Text Prelude.Text,
    predictEndpoint :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'Predict' 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:
--
-- 'mLModelId', 'predict_mLModelId' - A unique identifier of the @MLModel@.
--
-- 'record', 'predict_record' - Undocumented member.
--
-- 'predictEndpoint', 'predict_predictEndpoint' - Undocumented member.
newPredict ::
  -- | 'mLModelId'
  Prelude.Text ->
  -- | 'predictEndpoint'
  Prelude.Text ->
  Predict
newPredict pMLModelId_ pPredictEndpoint_ =
  Predict'
    { mLModelId = pMLModelId_,
      record = Prelude.mempty,
      predictEndpoint = pPredictEndpoint_
    }

-- | A unique identifier of the @MLModel@.
predict_mLModelId :: Lens.Lens' Predict Prelude.Text
predict_mLModelId = Lens.lens (\Predict' {mLModelId} -> mLModelId) (\s@Predict' {} a -> s {mLModelId = a} :: Predict)

-- | Undocumented member.
predict_record :: Lens.Lens' Predict (Prelude.HashMap Prelude.Text Prelude.Text)
predict_record = Lens.lens (\Predict' {record} -> record) (\s@Predict' {} a -> s {record = a} :: Predict) Prelude.. Lens.coerced

-- | Undocumented member.
predict_predictEndpoint :: Lens.Lens' Predict Prelude.Text
predict_predictEndpoint = Lens.lens (\Predict' {predictEndpoint} -> predictEndpoint) (\s@Predict' {} a -> s {predictEndpoint = a} :: Predict)

instance Core.AWSRequest Predict where
  type AWSResponse Predict = PredictResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          PredictResponse'
            Prelude.<$> (x Data..?> "Prediction")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable Predict where
  hashWithSalt _salt Predict' {..} =
    _salt
      `Prelude.hashWithSalt` mLModelId
      `Prelude.hashWithSalt` record
      `Prelude.hashWithSalt` predictEndpoint

instance Prelude.NFData Predict where
  rnf Predict' {..} =
    Prelude.rnf mLModelId
      `Prelude.seq` Prelude.rnf record
      `Prelude.seq` Prelude.rnf predictEndpoint

instance Data.ToHeaders Predict where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ("AmazonML_20141212.Predict" :: Prelude.ByteString),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON Predict where
  toJSON Predict' {..} =
    Data.object
      ( Prelude.catMaybes
          [ Prelude.Just ("MLModelId" Data..= mLModelId),
            Prelude.Just ("Record" Data..= record),
            Prelude.Just
              ("PredictEndpoint" Data..= predictEndpoint)
          ]
      )

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

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

-- | /See:/ 'newPredictResponse' smart constructor.
data PredictResponse = PredictResponse'
  { prediction :: Prelude.Maybe Prediction,
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'PredictResponse' 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:
--
-- 'prediction', 'predictResponse_prediction' - Undocumented member.
--
-- 'httpStatus', 'predictResponse_httpStatus' - The response's http status code.
newPredictResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  PredictResponse
newPredictResponse pHttpStatus_ =
  PredictResponse'
    { prediction = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Undocumented member.
predictResponse_prediction :: Lens.Lens' PredictResponse (Prelude.Maybe Prediction)
predictResponse_prediction = Lens.lens (\PredictResponse' {prediction} -> prediction) (\s@PredictResponse' {} a -> s {prediction = a} :: PredictResponse)

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

instance Prelude.NFData PredictResponse where
  rnf PredictResponse' {..} =
    Prelude.rnf prediction
      `Prelude.seq` Prelude.rnf httpStatus