{-# 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.ListRuleNamesByTarget
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists the rules for the specified target. You can see which of the rules
-- in Amazon EventBridge can invoke a specific target in your account.
--
-- This operation returns paginated results.
module Amazonka.CloudWatchEvents.ListRuleNamesByTarget
  ( -- * Creating a Request
    ListRuleNamesByTarget (..),
    newListRuleNamesByTarget,

    -- * Request Lenses
    listRuleNamesByTarget_eventBusName,
    listRuleNamesByTarget_limit,
    listRuleNamesByTarget_nextToken,
    listRuleNamesByTarget_targetArn,

    -- * Destructuring the Response
    ListRuleNamesByTargetResponse (..),
    newListRuleNamesByTargetResponse,

    -- * Response Lenses
    listRuleNamesByTargetResponse_nextToken,
    listRuleNamesByTargetResponse_ruleNames,
    listRuleNamesByTargetResponse_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:/ 'newListRuleNamesByTarget' smart constructor.
data ListRuleNamesByTarget = ListRuleNamesByTarget'
  { -- | The name or ARN of the event bus to list rules for. If you omit this,
    -- the default event bus is used.
    eventBusName :: Prelude.Maybe Prelude.Text,
    -- | The maximum number of results to return.
    limit :: Prelude.Maybe Prelude.Natural,
    -- | The token returned by a previous call to retrieve the next set of
    -- results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The Amazon Resource Name (ARN) of the target resource.
    targetArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListRuleNamesByTarget' 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:
--
-- 'eventBusName', 'listRuleNamesByTarget_eventBusName' - The name or ARN of the event bus to list rules for. If you omit this,
-- the default event bus is used.
--
-- 'limit', 'listRuleNamesByTarget_limit' - The maximum number of results to return.
--
-- 'nextToken', 'listRuleNamesByTarget_nextToken' - The token returned by a previous call to retrieve the next set of
-- results.
--
-- 'targetArn', 'listRuleNamesByTarget_targetArn' - The Amazon Resource Name (ARN) of the target resource.
newListRuleNamesByTarget ::
  -- | 'targetArn'
  Prelude.Text ->
  ListRuleNamesByTarget
newListRuleNamesByTarget pTargetArn_ =
  ListRuleNamesByTarget'
    { eventBusName =
        Prelude.Nothing,
      limit = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      targetArn = pTargetArn_
    }

-- | The name or ARN of the event bus to list rules for. If you omit this,
-- the default event bus is used.
listRuleNamesByTarget_eventBusName :: Lens.Lens' ListRuleNamesByTarget (Prelude.Maybe Prelude.Text)
listRuleNamesByTarget_eventBusName = Lens.lens (\ListRuleNamesByTarget' {eventBusName} -> eventBusName) (\s@ListRuleNamesByTarget' {} a -> s {eventBusName = a} :: ListRuleNamesByTarget)

-- | The maximum number of results to return.
listRuleNamesByTarget_limit :: Lens.Lens' ListRuleNamesByTarget (Prelude.Maybe Prelude.Natural)
listRuleNamesByTarget_limit = Lens.lens (\ListRuleNamesByTarget' {limit} -> limit) (\s@ListRuleNamesByTarget' {} a -> s {limit = a} :: ListRuleNamesByTarget)

-- | The token returned by a previous call to retrieve the next set of
-- results.
listRuleNamesByTarget_nextToken :: Lens.Lens' ListRuleNamesByTarget (Prelude.Maybe Prelude.Text)
listRuleNamesByTarget_nextToken = Lens.lens (\ListRuleNamesByTarget' {nextToken} -> nextToken) (\s@ListRuleNamesByTarget' {} a -> s {nextToken = a} :: ListRuleNamesByTarget)

-- | The Amazon Resource Name (ARN) of the target resource.
listRuleNamesByTarget_targetArn :: Lens.Lens' ListRuleNamesByTarget Prelude.Text
listRuleNamesByTarget_targetArn = Lens.lens (\ListRuleNamesByTarget' {targetArn} -> targetArn) (\s@ListRuleNamesByTarget' {} a -> s {targetArn = a} :: ListRuleNamesByTarget)

instance Core.AWSPager ListRuleNamesByTarget where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listRuleNamesByTargetResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listRuleNamesByTargetResponse_ruleNames
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listRuleNamesByTarget_nextToken
          Lens..~ rs
          Lens.^? listRuleNamesByTargetResponse_nextToken
          Prelude.. Lens._Just

instance Core.AWSRequest ListRuleNamesByTarget where
  type
    AWSResponse ListRuleNamesByTarget =
      ListRuleNamesByTargetResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          ListRuleNamesByTargetResponse'
            Prelude.<$> (x Data..?> "NextToken")
            Prelude.<*> (x Data..?> "RuleNames" Core..!@ Prelude.mempty)
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ListRuleNamesByTarget where
  hashWithSalt _salt ListRuleNamesByTarget' {..} =
    _salt
      `Prelude.hashWithSalt` eventBusName
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` targetArn

instance Prelude.NFData ListRuleNamesByTarget where
  rnf ListRuleNamesByTarget' {..} =
    Prelude.rnf eventBusName
      `Prelude.seq` Prelude.rnf limit
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf targetArn

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

instance Data.ToJSON ListRuleNamesByTarget where
  toJSON ListRuleNamesByTarget' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("EventBusName" Data..=) Prelude.<$> eventBusName,
            ("Limit" Data..=) Prelude.<$> limit,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            Prelude.Just ("TargetArn" Data..= targetArn)
          ]
      )

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

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

-- | /See:/ 'newListRuleNamesByTargetResponse' smart constructor.
data ListRuleNamesByTargetResponse = ListRuleNamesByTargetResponse'
  { -- | Indicates whether there are additional results to retrieve. If there are
    -- no more results, the value is null.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The names of the rules that can invoke the given target.
    ruleNames :: Prelude.Maybe [Prelude.Text],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListRuleNamesByTargetResponse' 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:
--
-- 'nextToken', 'listRuleNamesByTargetResponse_nextToken' - Indicates whether there are additional results to retrieve. If there are
-- no more results, the value is null.
--
-- 'ruleNames', 'listRuleNamesByTargetResponse_ruleNames' - The names of the rules that can invoke the given target.
--
-- 'httpStatus', 'listRuleNamesByTargetResponse_httpStatus' - The response's http status code.
newListRuleNamesByTargetResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListRuleNamesByTargetResponse
newListRuleNamesByTargetResponse pHttpStatus_ =
  ListRuleNamesByTargetResponse'
    { nextToken =
        Prelude.Nothing,
      ruleNames = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Indicates whether there are additional results to retrieve. If there are
-- no more results, the value is null.
listRuleNamesByTargetResponse_nextToken :: Lens.Lens' ListRuleNamesByTargetResponse (Prelude.Maybe Prelude.Text)
listRuleNamesByTargetResponse_nextToken = Lens.lens (\ListRuleNamesByTargetResponse' {nextToken} -> nextToken) (\s@ListRuleNamesByTargetResponse' {} a -> s {nextToken = a} :: ListRuleNamesByTargetResponse)

-- | The names of the rules that can invoke the given target.
listRuleNamesByTargetResponse_ruleNames :: Lens.Lens' ListRuleNamesByTargetResponse (Prelude.Maybe [Prelude.Text])
listRuleNamesByTargetResponse_ruleNames = Lens.lens (\ListRuleNamesByTargetResponse' {ruleNames} -> ruleNames) (\s@ListRuleNamesByTargetResponse' {} a -> s {ruleNames = a} :: ListRuleNamesByTargetResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ListRuleNamesByTargetResponse where
  rnf ListRuleNamesByTargetResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf ruleNames
      `Prelude.seq` Prelude.rnf httpStatus