{-# 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.ELB.DescribeLoadBalancerPolicies
-- 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 specified policies.
--
-- If you specify a load balancer name, the action returns the descriptions
-- of all policies created for the load balancer. If you specify a policy
-- name associated with your load balancer, the action returns the
-- description of that policy. If you don\'t specify a load balancer name,
-- the action returns descriptions of the specified sample policies, or
-- descriptions of all sample policies. The names of the sample policies
-- have the @ELBSample-@ prefix.
module Amazonka.ELB.DescribeLoadBalancerPolicies
  ( -- * Creating a Request
    DescribeLoadBalancerPolicies (..),
    newDescribeLoadBalancerPolicies,

    -- * Request Lenses
    describeLoadBalancerPolicies_loadBalancerName,
    describeLoadBalancerPolicies_policyNames,

    -- * Destructuring the Response
    DescribeLoadBalancerPoliciesResponse (..),
    newDescribeLoadBalancerPoliciesResponse,

    -- * Response Lenses
    describeLoadBalancerPoliciesResponse_policyDescriptions,
    describeLoadBalancerPoliciesResponse_httpStatus,
  )
where

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

-- | Contains the parameters for DescribeLoadBalancerPolicies.
--
-- /See:/ 'newDescribeLoadBalancerPolicies' smart constructor.
data DescribeLoadBalancerPolicies = DescribeLoadBalancerPolicies'
  { -- | The name of the load balancer.
    loadBalancerName :: Prelude.Maybe Prelude.Text,
    -- | The names of the policies.
    policyNames :: Prelude.Maybe [Prelude.Text]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeLoadBalancerPolicies' 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:
--
-- 'loadBalancerName', 'describeLoadBalancerPolicies_loadBalancerName' - The name of the load balancer.
--
-- 'policyNames', 'describeLoadBalancerPolicies_policyNames' - The names of the policies.
newDescribeLoadBalancerPolicies ::
  DescribeLoadBalancerPolicies
newDescribeLoadBalancerPolicies =
  DescribeLoadBalancerPolicies'
    { loadBalancerName =
        Prelude.Nothing,
      policyNames = Prelude.Nothing
    }

-- | The name of the load balancer.
describeLoadBalancerPolicies_loadBalancerName :: Lens.Lens' DescribeLoadBalancerPolicies (Prelude.Maybe Prelude.Text)
describeLoadBalancerPolicies_loadBalancerName = Lens.lens (\DescribeLoadBalancerPolicies' {loadBalancerName} -> loadBalancerName) (\s@DescribeLoadBalancerPolicies' {} a -> s {loadBalancerName = a} :: DescribeLoadBalancerPolicies)

-- | The names of the policies.
describeLoadBalancerPolicies_policyNames :: Lens.Lens' DescribeLoadBalancerPolicies (Prelude.Maybe [Prelude.Text])
describeLoadBalancerPolicies_policyNames = Lens.lens (\DescribeLoadBalancerPolicies' {policyNames} -> policyNames) (\s@DescribeLoadBalancerPolicies' {} a -> s {policyNames = a} :: DescribeLoadBalancerPolicies) Prelude.. Lens.mapping Lens.coerced

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

instance
  Prelude.Hashable
    DescribeLoadBalancerPolicies
  where
  hashWithSalt _salt DescribeLoadBalancerPolicies' {..} =
    _salt
      `Prelude.hashWithSalt` loadBalancerName
      `Prelude.hashWithSalt` policyNames

instance Prelude.NFData DescribeLoadBalancerPolicies where
  rnf DescribeLoadBalancerPolicies' {..} =
    Prelude.rnf loadBalancerName
      `Prelude.seq` Prelude.rnf policyNames

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

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

instance Data.ToQuery DescribeLoadBalancerPolicies where
  toQuery DescribeLoadBalancerPolicies' {..} =
    Prelude.mconcat
      [ "Action"
          Data.=: ( "DescribeLoadBalancerPolicies" ::
                      Prelude.ByteString
                  ),
        "Version"
          Data.=: ("2012-06-01" :: Prelude.ByteString),
        "LoadBalancerName" Data.=: loadBalancerName,
        "PolicyNames"
          Data.=: Data.toQuery
            (Data.toQueryList "member" Prelude.<$> policyNames)
      ]

-- | Contains the output of DescribeLoadBalancerPolicies.
--
-- /See:/ 'newDescribeLoadBalancerPoliciesResponse' smart constructor.
data DescribeLoadBalancerPoliciesResponse = DescribeLoadBalancerPoliciesResponse'
  { -- | Information about the policies.
    policyDescriptions :: Prelude.Maybe [PolicyDescription],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeLoadBalancerPoliciesResponse' 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:
--
-- 'policyDescriptions', 'describeLoadBalancerPoliciesResponse_policyDescriptions' - Information about the policies.
--
-- 'httpStatus', 'describeLoadBalancerPoliciesResponse_httpStatus' - The response's http status code.
newDescribeLoadBalancerPoliciesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeLoadBalancerPoliciesResponse
newDescribeLoadBalancerPoliciesResponse pHttpStatus_ =
  DescribeLoadBalancerPoliciesResponse'
    { policyDescriptions =
        Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Information about the policies.
describeLoadBalancerPoliciesResponse_policyDescriptions :: Lens.Lens' DescribeLoadBalancerPoliciesResponse (Prelude.Maybe [PolicyDescription])
describeLoadBalancerPoliciesResponse_policyDescriptions = Lens.lens (\DescribeLoadBalancerPoliciesResponse' {policyDescriptions} -> policyDescriptions) (\s@DescribeLoadBalancerPoliciesResponse' {} a -> s {policyDescriptions = a} :: DescribeLoadBalancerPoliciesResponse) Prelude.. Lens.mapping Lens.coerced

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

instance
  Prelude.NFData
    DescribeLoadBalancerPoliciesResponse
  where
  rnf DescribeLoadBalancerPoliciesResponse' {..} =
    Prelude.rnf policyDescriptions
      `Prelude.seq` Prelude.rnf httpStatus