{-# 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.CloudWatchEvents.DescribeEventBus
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Displays details about an event bus in your account. This can include
-- the external Amazon Web Services accounts that are permitted to write
-- events to your default event bus, and the associated policy. For custom
-- event buses and partner event buses, it displays the name, ARN, policy,
-- state, and creation time.
--
-- To enable your account to receive events from other accounts on its
-- default event bus, use
-- <https://docs.aws.amazon.com/eventbridge/latest/APIReference/API_PutPermission.html PutPermission>.
--
-- For more information about partner event buses, see
-- <https://docs.aws.amazon.com/eventbridge/latest/APIReference/API_CreateEventBus.html CreateEventBus>.
module Amazonka.CloudWatchEvents.DescribeEventBus
  ( -- * Creating a Request
    DescribeEventBus (..),
    newDescribeEventBus,

    -- * Request Lenses
    describeEventBus_name,

    -- * Destructuring the Response
    DescribeEventBusResponse (..),
    newDescribeEventBusResponse,

    -- * Response Lenses
    describeEventBusResponse_arn,
    describeEventBusResponse_name,
    describeEventBusResponse_policy,
    describeEventBusResponse_httpStatus,
  )
where

import Amazonka.CloudWatchEvents.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:/ 'newDescribeEventBus' smart constructor.
data DescribeEventBus = DescribeEventBus'
  { -- | The name or ARN of the event bus to show details for. If you omit this,
    -- the default event bus is displayed.
    DescribeEventBus -> Maybe Text
name :: Prelude.Maybe Prelude.Text
  }
  deriving (DescribeEventBus -> DescribeEventBus -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: DescribeEventBus -> DescribeEventBus -> Bool
$c/= :: DescribeEventBus -> DescribeEventBus -> Bool
== :: DescribeEventBus -> DescribeEventBus -> Bool
$c== :: DescribeEventBus -> DescribeEventBus -> Bool
Prelude.Eq, ReadPrec [DescribeEventBus]
ReadPrec DescribeEventBus
Int -> ReadS DescribeEventBus
ReadS [DescribeEventBus]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [DescribeEventBus]
$creadListPrec :: ReadPrec [DescribeEventBus]
readPrec :: ReadPrec DescribeEventBus
$creadPrec :: ReadPrec DescribeEventBus
readList :: ReadS [DescribeEventBus]
$creadList :: ReadS [DescribeEventBus]
readsPrec :: Int -> ReadS DescribeEventBus
$creadsPrec :: Int -> ReadS DescribeEventBus
Prelude.Read, Int -> DescribeEventBus -> ShowS
[DescribeEventBus] -> ShowS
DescribeEventBus -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [DescribeEventBus] -> ShowS
$cshowList :: [DescribeEventBus] -> ShowS
show :: DescribeEventBus -> String
$cshow :: DescribeEventBus -> String
showsPrec :: Int -> DescribeEventBus -> ShowS
$cshowsPrec :: Int -> DescribeEventBus -> ShowS
Prelude.Show, forall x. Rep DescribeEventBus x -> DescribeEventBus
forall x. DescribeEventBus -> Rep DescribeEventBus x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep DescribeEventBus x -> DescribeEventBus
$cfrom :: forall x. DescribeEventBus -> Rep DescribeEventBus x
Prelude.Generic)

-- |
-- Create a value of 'DescribeEventBus' 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:
--
-- 'name', 'describeEventBus_name' - The name or ARN of the event bus to show details for. If you omit this,
-- the default event bus is displayed.
newDescribeEventBus ::
  DescribeEventBus
newDescribeEventBus :: DescribeEventBus
newDescribeEventBus =
  DescribeEventBus' {$sel:name:DescribeEventBus' :: Maybe Text
name = forall a. Maybe a
Prelude.Nothing}

-- | The name or ARN of the event bus to show details for. If you omit this,
-- the default event bus is displayed.
describeEventBus_name :: Lens.Lens' DescribeEventBus (Prelude.Maybe Prelude.Text)
describeEventBus_name :: Lens' DescribeEventBus (Maybe Text)
describeEventBus_name = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\DescribeEventBus' {Maybe Text
name :: Maybe Text
$sel:name:DescribeEventBus' :: DescribeEventBus -> Maybe Text
name} -> Maybe Text
name) (\s :: DescribeEventBus
s@DescribeEventBus' {} Maybe Text
a -> DescribeEventBus
s {$sel:name:DescribeEventBus' :: Maybe Text
name = Maybe Text
a} :: DescribeEventBus)

instance Core.AWSRequest DescribeEventBus where
  type
    AWSResponse DescribeEventBus =
      DescribeEventBusResponse
  request :: (Service -> Service)
-> DescribeEventBus -> Request DescribeEventBus
request Service -> Service
overrides =
    forall a. (ToRequest a, ToJSON a) => Service -> a -> Request a
Request.postJSON (Service -> Service
overrides Service
defaultService)
  response :: forall (m :: * -> *).
MonadResource m =>
(ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy DescribeEventBus
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse DescribeEventBus)))
response =
    forall (m :: * -> *) a.
MonadResource m =>
(Int -> ResponseHeaders -> Object -> Either String (AWSResponse a))
-> (ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy a
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse a)))
Response.receiveJSON
      ( \Int
s ResponseHeaders
h Object
x ->
          Maybe Text
-> Maybe Text -> Maybe Text -> Int -> DescribeEventBusResponse
DescribeEventBusResponse'
            forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"Arn")
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"Name")
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"Policy")
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (forall (f :: * -> *) a. Applicative f => a -> f a
Prelude.pure (forall a. Enum a => a -> Int
Prelude.fromEnum Int
s))
      )

instance Prelude.Hashable DescribeEventBus where
  hashWithSalt :: Int -> DescribeEventBus -> Int
hashWithSalt Int
_salt DescribeEventBus' {Maybe Text
name :: Maybe Text
$sel:name:DescribeEventBus' :: DescribeEventBus -> Maybe Text
..} =
    Int
_salt forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
name

instance Prelude.NFData DescribeEventBus where
  rnf :: DescribeEventBus -> ()
rnf DescribeEventBus' {Maybe Text
name :: Maybe Text
$sel:name:DescribeEventBus' :: DescribeEventBus -> Maybe Text
..} = forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
name

instance Data.ToHeaders DescribeEventBus where
  toHeaders :: DescribeEventBus -> ResponseHeaders
toHeaders =
    forall a b. a -> b -> a
Prelude.const
      ( forall a. Monoid a => [a] -> a
Prelude.mconcat
          [ HeaderName
"X-Amz-Target"
              forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# (ByteString
"AWSEvents.DescribeEventBus" :: Prelude.ByteString),
            HeaderName
"Content-Type"
              forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# ( ByteString
"application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON DescribeEventBus where
  toJSON :: DescribeEventBus -> Value
toJSON DescribeEventBus' {Maybe Text
name :: Maybe Text
$sel:name:DescribeEventBus' :: DescribeEventBus -> Maybe Text
..} =
    [Pair] -> Value
Data.object
      ( forall a. [Maybe a] -> [a]
Prelude.catMaybes
          [(Key
"Name" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
name]
      )

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

instance Data.ToQuery DescribeEventBus where
  toQuery :: DescribeEventBus -> QueryString
toQuery = forall a b. a -> b -> a
Prelude.const forall a. Monoid a => a
Prelude.mempty

-- | /See:/ 'newDescribeEventBusResponse' smart constructor.
data DescribeEventBusResponse = DescribeEventBusResponse'
  { -- | The Amazon Resource Name (ARN) of the account permitted to write events
    -- to the current account.
    DescribeEventBusResponse -> Maybe Text
arn :: Prelude.Maybe Prelude.Text,
    -- | The name of the event bus. Currently, this is always @default@.
    DescribeEventBusResponse -> Maybe Text
name :: Prelude.Maybe Prelude.Text,
    -- | The policy that enables the external account to send events to your
    -- account.
    DescribeEventBusResponse -> Maybe Text
policy :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    DescribeEventBusResponse -> Int
httpStatus :: Prelude.Int
  }
  deriving (DescribeEventBusResponse -> DescribeEventBusResponse -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: DescribeEventBusResponse -> DescribeEventBusResponse -> Bool
$c/= :: DescribeEventBusResponse -> DescribeEventBusResponse -> Bool
== :: DescribeEventBusResponse -> DescribeEventBusResponse -> Bool
$c== :: DescribeEventBusResponse -> DescribeEventBusResponse -> Bool
Prelude.Eq, ReadPrec [DescribeEventBusResponse]
ReadPrec DescribeEventBusResponse
Int -> ReadS DescribeEventBusResponse
ReadS [DescribeEventBusResponse]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [DescribeEventBusResponse]
$creadListPrec :: ReadPrec [DescribeEventBusResponse]
readPrec :: ReadPrec DescribeEventBusResponse
$creadPrec :: ReadPrec DescribeEventBusResponse
readList :: ReadS [DescribeEventBusResponse]
$creadList :: ReadS [DescribeEventBusResponse]
readsPrec :: Int -> ReadS DescribeEventBusResponse
$creadsPrec :: Int -> ReadS DescribeEventBusResponse
Prelude.Read, Int -> DescribeEventBusResponse -> ShowS
[DescribeEventBusResponse] -> ShowS
DescribeEventBusResponse -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [DescribeEventBusResponse] -> ShowS
$cshowList :: [DescribeEventBusResponse] -> ShowS
show :: DescribeEventBusResponse -> String
$cshow :: DescribeEventBusResponse -> String
showsPrec :: Int -> DescribeEventBusResponse -> ShowS
$cshowsPrec :: Int -> DescribeEventBusResponse -> ShowS
Prelude.Show, forall x.
Rep DescribeEventBusResponse x -> DescribeEventBusResponse
forall x.
DescribeEventBusResponse -> Rep DescribeEventBusResponse x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x.
Rep DescribeEventBusResponse x -> DescribeEventBusResponse
$cfrom :: forall x.
DescribeEventBusResponse -> Rep DescribeEventBusResponse x
Prelude.Generic)

-- |
-- Create a value of 'DescribeEventBusResponse' 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:
--
-- 'arn', 'describeEventBusResponse_arn' - The Amazon Resource Name (ARN) of the account permitted to write events
-- to the current account.
--
-- 'name', 'describeEventBusResponse_name' - The name of the event bus. Currently, this is always @default@.
--
-- 'policy', 'describeEventBusResponse_policy' - The policy that enables the external account to send events to your
-- account.
--
-- 'httpStatus', 'describeEventBusResponse_httpStatus' - The response's http status code.
newDescribeEventBusResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeEventBusResponse
newDescribeEventBusResponse :: Int -> DescribeEventBusResponse
newDescribeEventBusResponse Int
pHttpStatus_ =
  DescribeEventBusResponse'
    { $sel:arn:DescribeEventBusResponse' :: Maybe Text
arn = forall a. Maybe a
Prelude.Nothing,
      $sel:name:DescribeEventBusResponse' :: Maybe Text
name = forall a. Maybe a
Prelude.Nothing,
      $sel:policy:DescribeEventBusResponse' :: Maybe Text
policy = forall a. Maybe a
Prelude.Nothing,
      $sel:httpStatus:DescribeEventBusResponse' :: Int
httpStatus = Int
pHttpStatus_
    }

-- | The Amazon Resource Name (ARN) of the account permitted to write events
-- to the current account.
describeEventBusResponse_arn :: Lens.Lens' DescribeEventBusResponse (Prelude.Maybe Prelude.Text)
describeEventBusResponse_arn :: Lens' DescribeEventBusResponse (Maybe Text)
describeEventBusResponse_arn = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\DescribeEventBusResponse' {Maybe Text
arn :: Maybe Text
$sel:arn:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
arn} -> Maybe Text
arn) (\s :: DescribeEventBusResponse
s@DescribeEventBusResponse' {} Maybe Text
a -> DescribeEventBusResponse
s {$sel:arn:DescribeEventBusResponse' :: Maybe Text
arn = Maybe Text
a} :: DescribeEventBusResponse)

-- | The name of the event bus. Currently, this is always @default@.
describeEventBusResponse_name :: Lens.Lens' DescribeEventBusResponse (Prelude.Maybe Prelude.Text)
describeEventBusResponse_name :: Lens' DescribeEventBusResponse (Maybe Text)
describeEventBusResponse_name = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\DescribeEventBusResponse' {Maybe Text
name :: Maybe Text
$sel:name:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
name} -> Maybe Text
name) (\s :: DescribeEventBusResponse
s@DescribeEventBusResponse' {} Maybe Text
a -> DescribeEventBusResponse
s {$sel:name:DescribeEventBusResponse' :: Maybe Text
name = Maybe Text
a} :: DescribeEventBusResponse)

-- | The policy that enables the external account to send events to your
-- account.
describeEventBusResponse_policy :: Lens.Lens' DescribeEventBusResponse (Prelude.Maybe Prelude.Text)
describeEventBusResponse_policy :: Lens' DescribeEventBusResponse (Maybe Text)
describeEventBusResponse_policy = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\DescribeEventBusResponse' {Maybe Text
policy :: Maybe Text
$sel:policy:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
policy} -> Maybe Text
policy) (\s :: DescribeEventBusResponse
s@DescribeEventBusResponse' {} Maybe Text
a -> DescribeEventBusResponse
s {$sel:policy:DescribeEventBusResponse' :: Maybe Text
policy = Maybe Text
a} :: DescribeEventBusResponse)

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

instance Prelude.NFData DescribeEventBusResponse where
  rnf :: DescribeEventBusResponse -> ()
rnf DescribeEventBusResponse' {Int
Maybe Text
httpStatus :: Int
policy :: Maybe Text
name :: Maybe Text
arn :: Maybe Text
$sel:httpStatus:DescribeEventBusResponse' :: DescribeEventBusResponse -> Int
$sel:policy:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
$sel:name:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
$sel:arn:DescribeEventBusResponse' :: DescribeEventBusResponse -> Maybe Text
..} =
    forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
arn
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
name
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
policy
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Int
httpStatus