{-# 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.ELBV2.DescribeTargetHealth
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Describes the health of the specified targets or all of your targets.
module Amazonka.ELBV2.DescribeTargetHealth
  ( -- * Creating a Request
    DescribeTargetHealth (..),
    newDescribeTargetHealth,

    -- * Request Lenses
    describeTargetHealth_targets,
    describeTargetHealth_targetGroupArn,

    -- * Destructuring the Response
    DescribeTargetHealthResponse (..),
    newDescribeTargetHealthResponse,

    -- * Response Lenses
    describeTargetHealthResponse_targetHealthDescriptions,
    describeTargetHealthResponse_httpStatus,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.ELBV2.Types
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newDescribeTargetHealth' smart constructor.
data DescribeTargetHealth = DescribeTargetHealth'
  { -- | The targets.
    targets :: Prelude.Maybe [TargetDescription],
    -- | The Amazon Resource Name (ARN) of the target group.
    targetGroupArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeTargetHealth' 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:
--
-- 'targets', 'describeTargetHealth_targets' - The targets.
--
-- 'targetGroupArn', 'describeTargetHealth_targetGroupArn' - The Amazon Resource Name (ARN) of the target group.
newDescribeTargetHealth ::
  -- | 'targetGroupArn'
  Prelude.Text ->
  DescribeTargetHealth
newDescribeTargetHealth pTargetGroupArn_ =
  DescribeTargetHealth'
    { targets = Prelude.Nothing,
      targetGroupArn = pTargetGroupArn_
    }

-- | The targets.
describeTargetHealth_targets :: Lens.Lens' DescribeTargetHealth (Prelude.Maybe [TargetDescription])
describeTargetHealth_targets = Lens.lens (\DescribeTargetHealth' {targets} -> targets) (\s@DescribeTargetHealth' {} a -> s {targets = a} :: DescribeTargetHealth) Prelude.. Lens.mapping Lens.coerced

-- | The Amazon Resource Name (ARN) of the target group.
describeTargetHealth_targetGroupArn :: Lens.Lens' DescribeTargetHealth Prelude.Text
describeTargetHealth_targetGroupArn = Lens.lens (\DescribeTargetHealth' {targetGroupArn} -> targetGroupArn) (\s@DescribeTargetHealth' {} a -> s {targetGroupArn = a} :: DescribeTargetHealth)

instance Core.AWSRequest DescribeTargetHealth where
  type
    AWSResponse DescribeTargetHealth =
      DescribeTargetHealthResponse
  request overrides =
    Request.postQuery (overrides defaultService)
  response =
    Response.receiveXMLWrapper
      "DescribeTargetHealthResult"
      ( \s h x ->
          DescribeTargetHealthResponse'
            Prelude.<$> ( x
                            Data..@? "TargetHealthDescriptions"
                            Core..!@ Prelude.mempty
                            Prelude.>>= Core.may (Data.parseXMLList "member")
                        )
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable DescribeTargetHealth where
  hashWithSalt _salt DescribeTargetHealth' {..} =
    _salt
      `Prelude.hashWithSalt` targets
      `Prelude.hashWithSalt` targetGroupArn

instance Prelude.NFData DescribeTargetHealth where
  rnf DescribeTargetHealth' {..} =
    Prelude.rnf targets
      `Prelude.seq` Prelude.rnf targetGroupArn

instance Data.ToHeaders DescribeTargetHealth where
  toHeaders = Prelude.const Prelude.mempty

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

instance Data.ToQuery DescribeTargetHealth where
  toQuery DescribeTargetHealth' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ("DescribeTargetHealth" :: Prelude.ByteString),
        "Version"
          Data.=: ("2015-12-01" :: Prelude.ByteString),
        "Targets"
          Data.=: Data.toQuery
            (Data.toQueryList "member" Prelude.<$> targets),
        "TargetGroupArn" Data.=: targetGroupArn
      ]

-- | /See:/ 'newDescribeTargetHealthResponse' smart constructor.
data DescribeTargetHealthResponse = DescribeTargetHealthResponse'
  { -- | Information about the health of the targets.
    targetHealthDescriptions :: Prelude.Maybe [TargetHealthDescription],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeTargetHealthResponse' 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:
--
-- 'targetHealthDescriptions', 'describeTargetHealthResponse_targetHealthDescriptions' - Information about the health of the targets.
--
-- 'httpStatus', 'describeTargetHealthResponse_httpStatus' - The response's http status code.
newDescribeTargetHealthResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeTargetHealthResponse
newDescribeTargetHealthResponse pHttpStatus_ =
  DescribeTargetHealthResponse'
    { targetHealthDescriptions =
        Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Information about the health of the targets.
describeTargetHealthResponse_targetHealthDescriptions :: Lens.Lens' DescribeTargetHealthResponse (Prelude.Maybe [TargetHealthDescription])
describeTargetHealthResponse_targetHealthDescriptions = Lens.lens (\DescribeTargetHealthResponse' {targetHealthDescriptions} -> targetHealthDescriptions) (\s@DescribeTargetHealthResponse' {} a -> s {targetHealthDescriptions = a} :: DescribeTargetHealthResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData DescribeTargetHealthResponse where
  rnf DescribeTargetHealthResponse' {..} =
    Prelude.rnf targetHealthDescriptions
      `Prelude.seq` Prelude.rnf httpStatus