{-# 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.WAF.CreateRule
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- This is __AWS WAF Classic__ documentation. For more information, see
-- <https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html AWS WAF Classic>
-- in the developer guide.
--
-- __For the latest version of AWS WAF__, use the AWS WAFV2 API and see the
-- <https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html AWS WAF Developer Guide>.
-- With the latest version, AWS WAF has a single set of endpoints for
-- regional and global use.
--
-- Creates a @Rule@, which contains the @IPSet@ objects, @ByteMatchSet@
-- objects, and other predicates that identify the requests that you want
-- to block. If you add more than one predicate to a @Rule@, a request must
-- match all of the specifications to be allowed or blocked. For example,
-- suppose that you add the following to a @Rule@:
--
-- -   An @IPSet@ that matches the IP address @192.0.2.44\/32@
--
-- -   A @ByteMatchSet@ that matches @BadBot@ in the @User-Agent@ header
--
-- You then add the @Rule@ to a @WebACL@ and specify that you want to
-- blocks requests that satisfy the @Rule@. For a request to be blocked, it
-- must come from the IP address 192.0.2.44 /and/ the @User-Agent@ header
-- in the request must contain the value @BadBot@.
--
-- To create and configure a @Rule@, perform the following steps:
--
-- 1.  Create and update the predicates that you want to include in the
--     @Rule@. For more information, see CreateByteMatchSet, CreateIPSet,
--     and CreateSqlInjectionMatchSet.
--
-- 2.  Use GetChangeToken to get the change token that you provide in the
--     @ChangeToken@ parameter of a @CreateRule@ request.
--
-- 3.  Submit a @CreateRule@ request.
--
-- 4.  Use @GetChangeToken@ to get the change token that you provide in the
--     @ChangeToken@ parameter of an UpdateRule request.
--
-- 5.  Submit an @UpdateRule@ request to specify the predicates that you
--     want to include in the @Rule@.
--
-- 6.  Create and update a @WebACL@ that contains the @Rule@. For more
--     information, see CreateWebACL.
--
-- For more information about how to use the AWS WAF API to allow or block
-- HTTP requests, see the
-- <https://docs.aws.amazon.com/waf/latest/developerguide/ AWS WAF Developer Guide>.
module Amazonka.WAF.CreateRule
  ( -- * Creating a Request
    CreateRule (..),
    newCreateRule,

    -- * Request Lenses
    createRule_tags,
    createRule_name,
    createRule_metricName,
    createRule_changeToken,

    -- * Destructuring the Response
    CreateRuleResponse (..),
    newCreateRuleResponse,

    -- * Response Lenses
    createRuleResponse_changeToken,
    createRuleResponse_rule,
    createRuleResponse_httpStatus,
  )
where

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
import Amazonka.WAF.Types

-- | /See:/ 'newCreateRule' smart constructor.
data CreateRule = CreateRule'
  { tags :: Prelude.Maybe (Prelude.NonEmpty Tag),
    -- | A friendly name or description of the Rule. You can\'t change the name
    -- of a @Rule@ after you create it.
    name :: Prelude.Text,
    -- | A friendly name or description for the metrics for this @Rule@. The name
    -- can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum
    -- length 128 and minimum length one. It can\'t contain whitespace or
    -- metric names reserved for AWS WAF, including \"All\" and
    -- \"Default_Action.\" You can\'t change the name of the metric after you
    -- create the @Rule@.
    metricName :: Prelude.Text,
    -- | The value returned by the most recent call to GetChangeToken.
    changeToken :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'CreateRule' 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:
--
-- 'tags', 'createRule_tags' -
--
-- 'name', 'createRule_name' - A friendly name or description of the Rule. You can\'t change the name
-- of a @Rule@ after you create it.
--
-- 'metricName', 'createRule_metricName' - A friendly name or description for the metrics for this @Rule@. The name
-- can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum
-- length 128 and minimum length one. It can\'t contain whitespace or
-- metric names reserved for AWS WAF, including \"All\" and
-- \"Default_Action.\" You can\'t change the name of the metric after you
-- create the @Rule@.
--
-- 'changeToken', 'createRule_changeToken' - The value returned by the most recent call to GetChangeToken.
newCreateRule ::
  -- | 'name'
  Prelude.Text ->
  -- | 'metricName'
  Prelude.Text ->
  -- | 'changeToken'
  Prelude.Text ->
  CreateRule
newCreateRule pName_ pMetricName_ pChangeToken_ =
  CreateRule'
    { tags = Prelude.Nothing,
      name = pName_,
      metricName = pMetricName_,
      changeToken = pChangeToken_
    }

createRule_tags :: Lens.Lens' CreateRule (Prelude.Maybe (Prelude.NonEmpty Tag))
createRule_tags = Lens.lens (\CreateRule' {tags} -> tags) (\s@CreateRule' {} a -> s {tags = a} :: CreateRule) Prelude.. Lens.mapping Lens.coerced

-- | A friendly name or description of the Rule. You can\'t change the name
-- of a @Rule@ after you create it.
createRule_name :: Lens.Lens' CreateRule Prelude.Text
createRule_name = Lens.lens (\CreateRule' {name} -> name) (\s@CreateRule' {} a -> s {name = a} :: CreateRule)

-- | A friendly name or description for the metrics for this @Rule@. The name
-- can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum
-- length 128 and minimum length one. It can\'t contain whitespace or
-- metric names reserved for AWS WAF, including \"All\" and
-- \"Default_Action.\" You can\'t change the name of the metric after you
-- create the @Rule@.
createRule_metricName :: Lens.Lens' CreateRule Prelude.Text
createRule_metricName = Lens.lens (\CreateRule' {metricName} -> metricName) (\s@CreateRule' {} a -> s {metricName = a} :: CreateRule)

-- | The value returned by the most recent call to GetChangeToken.
createRule_changeToken :: Lens.Lens' CreateRule Prelude.Text
createRule_changeToken = Lens.lens (\CreateRule' {changeToken} -> changeToken) (\s@CreateRule' {} a -> s {changeToken = a} :: CreateRule)

instance Core.AWSRequest CreateRule where
  type AWSResponse CreateRule = CreateRuleResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          CreateRuleResponse'
            Prelude.<$> (x Data..?> "ChangeToken")
            Prelude.<*> (x Data..?> "Rule")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable CreateRule where
  hashWithSalt _salt CreateRule' {..} =
    _salt
      `Prelude.hashWithSalt` tags
      `Prelude.hashWithSalt` name
      `Prelude.hashWithSalt` metricName
      `Prelude.hashWithSalt` changeToken

instance Prelude.NFData CreateRule where
  rnf CreateRule' {..} =
    Prelude.rnf tags
      `Prelude.seq` Prelude.rnf name
      `Prelude.seq` Prelude.rnf metricName
      `Prelude.seq` Prelude.rnf changeToken

instance Data.ToHeaders CreateRule where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ("AWSWAF_20150824.CreateRule" :: Prelude.ByteString),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON CreateRule where
  toJSON CreateRule' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("Tags" Data..=) Prelude.<$> tags,
            Prelude.Just ("Name" Data..= name),
            Prelude.Just ("MetricName" Data..= metricName),
            Prelude.Just ("ChangeToken" Data..= changeToken)
          ]
      )

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

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

-- | /See:/ 'newCreateRuleResponse' smart constructor.
data CreateRuleResponse = CreateRuleResponse'
  { -- | The @ChangeToken@ that you used to submit the @CreateRule@ request. You
    -- can also use this value to query the status of the request. For more
    -- information, see GetChangeTokenStatus.
    changeToken :: Prelude.Maybe Prelude.Text,
    -- | The Rule returned in the @CreateRule@ response.
    rule :: Prelude.Maybe Rule,
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'CreateRuleResponse' 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:
--
-- 'changeToken', 'createRuleResponse_changeToken' - The @ChangeToken@ that you used to submit the @CreateRule@ request. You
-- can also use this value to query the status of the request. For more
-- information, see GetChangeTokenStatus.
--
-- 'rule', 'createRuleResponse_rule' - The Rule returned in the @CreateRule@ response.
--
-- 'httpStatus', 'createRuleResponse_httpStatus' - The response's http status code.
newCreateRuleResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  CreateRuleResponse
newCreateRuleResponse pHttpStatus_ =
  CreateRuleResponse'
    { changeToken = Prelude.Nothing,
      rule = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The @ChangeToken@ that you used to submit the @CreateRule@ request. You
-- can also use this value to query the status of the request. For more
-- information, see GetChangeTokenStatus.
createRuleResponse_changeToken :: Lens.Lens' CreateRuleResponse (Prelude.Maybe Prelude.Text)
createRuleResponse_changeToken = Lens.lens (\CreateRuleResponse' {changeToken} -> changeToken) (\s@CreateRuleResponse' {} a -> s {changeToken = a} :: CreateRuleResponse)

-- | The Rule returned in the @CreateRule@ response.
createRuleResponse_rule :: Lens.Lens' CreateRuleResponse (Prelude.Maybe Rule)
createRuleResponse_rule = Lens.lens (\CreateRuleResponse' {rule} -> rule) (\s@CreateRuleResponse' {} a -> s {rule = a} :: CreateRuleResponse)

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

instance Prelude.NFData CreateRuleResponse where
  rnf CreateRuleResponse' {..} =
    Prelude.rnf changeToken
      `Prelude.seq` Prelude.rnf rule
      `Prelude.seq` Prelude.rnf httpStatus