{-# 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.CloudFormation.GetStackPolicy
-- Copyright   : (c) 2013-2021 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns the stack policy for a specified stack. If a stack doesn\'t have
-- a policy, a null value is returned.
module Amazonka.CloudFormation.GetStackPolicy
  ( -- * Creating a Request
    GetStackPolicy (..),
    newGetStackPolicy,

    -- * Request Lenses
    getStackPolicy_stackName,

    -- * Destructuring the Response
    GetStackPolicyResponse (..),
    newGetStackPolicyResponse,

    -- * Response Lenses
    getStackPolicyResponse_stackPolicyBody,
    getStackPolicyResponse_httpStatus,
  )
where

import Amazonka.CloudFormation.Types
import qualified Amazonka.Core as Core
import qualified Amazonka.Lens as Lens
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | The input for the GetStackPolicy action.
--
-- /See:/ 'newGetStackPolicy' smart constructor.
data GetStackPolicy = GetStackPolicy'
  { -- | The name or unique stack ID that is associated with the stack whose
    -- policy you want to get.
    GetStackPolicy -> Text
stackName :: Prelude.Text
  }
  deriving (GetStackPolicy -> GetStackPolicy -> Bool
(GetStackPolicy -> GetStackPolicy -> Bool)
-> (GetStackPolicy -> GetStackPolicy -> Bool) -> Eq GetStackPolicy
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: GetStackPolicy -> GetStackPolicy -> Bool
$c/= :: GetStackPolicy -> GetStackPolicy -> Bool
== :: GetStackPolicy -> GetStackPolicy -> Bool
$c== :: GetStackPolicy -> GetStackPolicy -> Bool
Prelude.Eq, ReadPrec [GetStackPolicy]
ReadPrec GetStackPolicy
Int -> ReadS GetStackPolicy
ReadS [GetStackPolicy]
(Int -> ReadS GetStackPolicy)
-> ReadS [GetStackPolicy]
-> ReadPrec GetStackPolicy
-> ReadPrec [GetStackPolicy]
-> Read GetStackPolicy
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [GetStackPolicy]
$creadListPrec :: ReadPrec [GetStackPolicy]
readPrec :: ReadPrec GetStackPolicy
$creadPrec :: ReadPrec GetStackPolicy
readList :: ReadS [GetStackPolicy]
$creadList :: ReadS [GetStackPolicy]
readsPrec :: Int -> ReadS GetStackPolicy
$creadsPrec :: Int -> ReadS GetStackPolicy
Prelude.Read, Int -> GetStackPolicy -> ShowS
[GetStackPolicy] -> ShowS
GetStackPolicy -> String
(Int -> GetStackPolicy -> ShowS)
-> (GetStackPolicy -> String)
-> ([GetStackPolicy] -> ShowS)
-> Show GetStackPolicy
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [GetStackPolicy] -> ShowS
$cshowList :: [GetStackPolicy] -> ShowS
show :: GetStackPolicy -> String
$cshow :: GetStackPolicy -> String
showsPrec :: Int -> GetStackPolicy -> ShowS
$cshowsPrec :: Int -> GetStackPolicy -> ShowS
Prelude.Show, (forall x. GetStackPolicy -> Rep GetStackPolicy x)
-> (forall x. Rep GetStackPolicy x -> GetStackPolicy)
-> Generic GetStackPolicy
forall x. Rep GetStackPolicy x -> GetStackPolicy
forall x. GetStackPolicy -> Rep GetStackPolicy x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep GetStackPolicy x -> GetStackPolicy
$cfrom :: forall x. GetStackPolicy -> Rep GetStackPolicy x
Prelude.Generic)

-- |
-- Create a value of 'GetStackPolicy' 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:
--
-- 'stackName', 'getStackPolicy_stackName' - The name or unique stack ID that is associated with the stack whose
-- policy you want to get.
newGetStackPolicy ::
  -- | 'stackName'
  Prelude.Text ->
  GetStackPolicy
newGetStackPolicy :: Text -> GetStackPolicy
newGetStackPolicy Text
pStackName_ =
  GetStackPolicy' :: Text -> GetStackPolicy
GetStackPolicy' {$sel:stackName:GetStackPolicy' :: Text
stackName = Text
pStackName_}

-- | The name or unique stack ID that is associated with the stack whose
-- policy you want to get.
getStackPolicy_stackName :: Lens.Lens' GetStackPolicy Prelude.Text
getStackPolicy_stackName :: (Text -> f Text) -> GetStackPolicy -> f GetStackPolicy
getStackPolicy_stackName = (GetStackPolicy -> Text)
-> (GetStackPolicy -> Text -> GetStackPolicy)
-> Lens GetStackPolicy GetStackPolicy Text Text
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetStackPolicy' {Text
stackName :: Text
$sel:stackName:GetStackPolicy' :: GetStackPolicy -> Text
stackName} -> Text
stackName) (\s :: GetStackPolicy
s@GetStackPolicy' {} Text
a -> GetStackPolicy
s {$sel:stackName:GetStackPolicy' :: Text
stackName = Text
a} :: GetStackPolicy)

instance Core.AWSRequest GetStackPolicy where
  type
    AWSResponse GetStackPolicy =
      GetStackPolicyResponse
  request :: GetStackPolicy -> Request GetStackPolicy
request = Service -> GetStackPolicy -> Request GetStackPolicy
forall a. ToRequest a => Service -> a -> Request a
Request.postQuery Service
defaultService
  response :: Logger
-> Service
-> Proxy GetStackPolicy
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse GetStackPolicy)))
response =
    Text
-> (Int
    -> ResponseHeaders
    -> [Node]
    -> Either String (AWSResponse GetStackPolicy))
-> Logger
-> Service
-> Proxy GetStackPolicy
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse GetStackPolicy)))
forall (m :: * -> *) a.
MonadResource m =>
Text
-> (Int
    -> ResponseHeaders -> [Node] -> Either String (AWSResponse a))
-> Logger
-> Service
-> Proxy a
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse a)))
Response.receiveXMLWrapper
      Text
"GetStackPolicyResult"
      ( \Int
s ResponseHeaders
h [Node]
x ->
          Maybe Text -> Int -> GetStackPolicyResponse
GetStackPolicyResponse'
            (Maybe Text -> Int -> GetStackPolicyResponse)
-> Either String (Maybe Text)
-> Either String (Int -> GetStackPolicyResponse)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> ([Node]
x [Node] -> Text -> Either String (Maybe Text)
forall a. FromXML a => [Node] -> Text -> Either String (Maybe a)
Core..@? Text
"StackPolicyBody")
            Either String (Int -> GetStackPolicyResponse)
-> Either String Int -> Either String GetStackPolicyResponse
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Int -> Either String Int
forall (f :: * -> *) a. Applicative f => a -> f a
Prelude.pure (Int -> Int
forall a. Enum a => a -> Int
Prelude.fromEnum Int
s))
      )

instance Prelude.Hashable GetStackPolicy

instance Prelude.NFData GetStackPolicy

instance Core.ToHeaders GetStackPolicy where
  toHeaders :: GetStackPolicy -> ResponseHeaders
toHeaders = ResponseHeaders -> GetStackPolicy -> ResponseHeaders
forall a b. a -> b -> a
Prelude.const ResponseHeaders
forall a. Monoid a => a
Prelude.mempty

instance Core.ToPath GetStackPolicy where
  toPath :: GetStackPolicy -> ByteString
toPath = ByteString -> GetStackPolicy -> ByteString
forall a b. a -> b -> a
Prelude.const ByteString
"/"

instance Core.ToQuery GetStackPolicy where
  toQuery :: GetStackPolicy -> QueryString
toQuery GetStackPolicy' {Text
stackName :: Text
$sel:stackName:GetStackPolicy' :: GetStackPolicy -> Text
..} =
    [QueryString] -> QueryString
forall a. Monoid a => [a] -> a
Prelude.mconcat
      [ ByteString
"Action"
          ByteString -> ByteString -> QueryString
forall a. ToQuery a => ByteString -> a -> QueryString
Core.=: (ByteString
"GetStackPolicy" :: Prelude.ByteString),
        ByteString
"Version"
          ByteString -> ByteString -> QueryString
forall a. ToQuery a => ByteString -> a -> QueryString
Core.=: (ByteString
"2010-05-15" :: Prelude.ByteString),
        ByteString
"StackName" ByteString -> Text -> QueryString
forall a. ToQuery a => ByteString -> a -> QueryString
Core.=: Text
stackName
      ]

-- | The output for the GetStackPolicy action.
--
-- /See:/ 'newGetStackPolicyResponse' smart constructor.
data GetStackPolicyResponse = GetStackPolicyResponse'
  { -- | Structure containing the stack policy body. (For more information, go to
    -- <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html Prevent Updates to Stack Resources>
    -- in the CloudFormation User Guide.)
    GetStackPolicyResponse -> Maybe Text
stackPolicyBody :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    GetStackPolicyResponse -> Int
httpStatus :: Prelude.Int
  }
  deriving (GetStackPolicyResponse -> GetStackPolicyResponse -> Bool
(GetStackPolicyResponse -> GetStackPolicyResponse -> Bool)
-> (GetStackPolicyResponse -> GetStackPolicyResponse -> Bool)
-> Eq GetStackPolicyResponse
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: GetStackPolicyResponse -> GetStackPolicyResponse -> Bool
$c/= :: GetStackPolicyResponse -> GetStackPolicyResponse -> Bool
== :: GetStackPolicyResponse -> GetStackPolicyResponse -> Bool
$c== :: GetStackPolicyResponse -> GetStackPolicyResponse -> Bool
Prelude.Eq, ReadPrec [GetStackPolicyResponse]
ReadPrec GetStackPolicyResponse
Int -> ReadS GetStackPolicyResponse
ReadS [GetStackPolicyResponse]
(Int -> ReadS GetStackPolicyResponse)
-> ReadS [GetStackPolicyResponse]
-> ReadPrec GetStackPolicyResponse
-> ReadPrec [GetStackPolicyResponse]
-> Read GetStackPolicyResponse
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [GetStackPolicyResponse]
$creadListPrec :: ReadPrec [GetStackPolicyResponse]
readPrec :: ReadPrec GetStackPolicyResponse
$creadPrec :: ReadPrec GetStackPolicyResponse
readList :: ReadS [GetStackPolicyResponse]
$creadList :: ReadS [GetStackPolicyResponse]
readsPrec :: Int -> ReadS GetStackPolicyResponse
$creadsPrec :: Int -> ReadS GetStackPolicyResponse
Prelude.Read, Int -> GetStackPolicyResponse -> ShowS
[GetStackPolicyResponse] -> ShowS
GetStackPolicyResponse -> String
(Int -> GetStackPolicyResponse -> ShowS)
-> (GetStackPolicyResponse -> String)
-> ([GetStackPolicyResponse] -> ShowS)
-> Show GetStackPolicyResponse
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [GetStackPolicyResponse] -> ShowS
$cshowList :: [GetStackPolicyResponse] -> ShowS
show :: GetStackPolicyResponse -> String
$cshow :: GetStackPolicyResponse -> String
showsPrec :: Int -> GetStackPolicyResponse -> ShowS
$cshowsPrec :: Int -> GetStackPolicyResponse -> ShowS
Prelude.Show, (forall x. GetStackPolicyResponse -> Rep GetStackPolicyResponse x)
-> (forall x.
    Rep GetStackPolicyResponse x -> GetStackPolicyResponse)
-> Generic GetStackPolicyResponse
forall x. Rep GetStackPolicyResponse x -> GetStackPolicyResponse
forall x. GetStackPolicyResponse -> Rep GetStackPolicyResponse x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep GetStackPolicyResponse x -> GetStackPolicyResponse
$cfrom :: forall x. GetStackPolicyResponse -> Rep GetStackPolicyResponse x
Prelude.Generic)

-- |
-- Create a value of 'GetStackPolicyResponse' 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:
--
-- 'stackPolicyBody', 'getStackPolicyResponse_stackPolicyBody' - Structure containing the stack policy body. (For more information, go to
-- <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html Prevent Updates to Stack Resources>
-- in the CloudFormation User Guide.)
--
-- 'httpStatus', 'getStackPolicyResponse_httpStatus' - The response's http status code.
newGetStackPolicyResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetStackPolicyResponse
newGetStackPolicyResponse :: Int -> GetStackPolicyResponse
newGetStackPolicyResponse Int
pHttpStatus_ =
  GetStackPolicyResponse' :: Maybe Text -> Int -> GetStackPolicyResponse
GetStackPolicyResponse'
    { $sel:stackPolicyBody:GetStackPolicyResponse' :: Maybe Text
stackPolicyBody =
        Maybe Text
forall a. Maybe a
Prelude.Nothing,
      $sel:httpStatus:GetStackPolicyResponse' :: Int
httpStatus = Int
pHttpStatus_
    }

-- | Structure containing the stack policy body. (For more information, go to
-- <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/protect-stack-resources.html Prevent Updates to Stack Resources>
-- in the CloudFormation User Guide.)
getStackPolicyResponse_stackPolicyBody :: Lens.Lens' GetStackPolicyResponse (Prelude.Maybe Prelude.Text)
getStackPolicyResponse_stackPolicyBody :: (Maybe Text -> f (Maybe Text))
-> GetStackPolicyResponse -> f GetStackPolicyResponse
getStackPolicyResponse_stackPolicyBody = (GetStackPolicyResponse -> Maybe Text)
-> (GetStackPolicyResponse -> Maybe Text -> GetStackPolicyResponse)
-> Lens
     GetStackPolicyResponse
     GetStackPolicyResponse
     (Maybe Text)
     (Maybe Text)
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetStackPolicyResponse' {Maybe Text
stackPolicyBody :: Maybe Text
$sel:stackPolicyBody:GetStackPolicyResponse' :: GetStackPolicyResponse -> Maybe Text
stackPolicyBody} -> Maybe Text
stackPolicyBody) (\s :: GetStackPolicyResponse
s@GetStackPolicyResponse' {} Maybe Text
a -> GetStackPolicyResponse
s {$sel:stackPolicyBody:GetStackPolicyResponse' :: Maybe Text
stackPolicyBody = Maybe Text
a} :: GetStackPolicyResponse)

-- | The response's http status code.
getStackPolicyResponse_httpStatus :: Lens.Lens' GetStackPolicyResponse Prelude.Int
getStackPolicyResponse_httpStatus :: (Int -> f Int)
-> GetStackPolicyResponse -> f GetStackPolicyResponse
getStackPolicyResponse_httpStatus = (GetStackPolicyResponse -> Int)
-> (GetStackPolicyResponse -> Int -> GetStackPolicyResponse)
-> Lens GetStackPolicyResponse GetStackPolicyResponse Int Int
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetStackPolicyResponse' {Int
httpStatus :: Int
$sel:httpStatus:GetStackPolicyResponse' :: GetStackPolicyResponse -> Int
httpStatus} -> Int
httpStatus) (\s :: GetStackPolicyResponse
s@GetStackPolicyResponse' {} Int
a -> GetStackPolicyResponse
s {$sel:httpStatus:GetStackPolicyResponse' :: Int
httpStatus = Int
a} :: GetStackPolicyResponse)

instance Prelude.NFData GetStackPolicyResponse