{-# 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.SWF.SignalWorkflowExecution
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Records a @WorkflowExecutionSignaled@ event in the workflow execution
-- history and creates a decision task for the workflow execution
-- identified by the given domain, workflowId and runId. The event is
-- recorded with the specified user defined signalName and input (if
-- provided).
--
-- If a runId isn\'t specified, then the @WorkflowExecutionSignaled@ event
-- is recorded in the history of the current open workflow with the
-- matching workflowId in the domain.
--
-- If the specified workflow execution isn\'t open, this method fails with
-- @UnknownResource@.
--
-- __Access Control__
--
-- You can use IAM policies to control this action\'s access to Amazon SWF
-- resources as follows:
--
-- -   Use a @Resource@ element with the domain name to limit the action to
--     only specified domains.
--
-- -   Use an @Action@ element to allow or deny permission to call this
--     action.
--
-- -   You cannot use an IAM policy to constrain this action\'s parameters.
--
-- If the caller doesn\'t have sufficient permissions to invoke the action,
-- or the parameter values fall outside the specified constraints, the
-- action fails. The associated event attribute\'s @cause@ parameter is set
-- to @OPERATION_NOT_PERMITTED@. For details and example IAM policies, see
-- <https://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html Using IAM to Manage Access to Amazon SWF Workflows>
-- in the /Amazon SWF Developer Guide/.
module Amazonka.SWF.SignalWorkflowExecution
  ( -- * Creating a Request
    SignalWorkflowExecution (..),
    newSignalWorkflowExecution,

    -- * Request Lenses
    signalWorkflowExecution_input,
    signalWorkflowExecution_runId,
    signalWorkflowExecution_domain,
    signalWorkflowExecution_workflowId,
    signalWorkflowExecution_signalName,

    -- * Destructuring the Response
    SignalWorkflowExecutionResponse (..),
    newSignalWorkflowExecutionResponse,
  )
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.SWF.Types

-- | /See:/ 'newSignalWorkflowExecution' smart constructor.
data SignalWorkflowExecution = SignalWorkflowExecution'
  { -- | Data to attach to the @WorkflowExecutionSignaled@ event in the target
    -- workflow execution\'s history.
    input :: Prelude.Maybe Prelude.Text,
    -- | The runId of the workflow execution to signal.
    runId :: Prelude.Maybe Prelude.Text,
    -- | The name of the domain containing the workflow execution to signal.
    domain :: Prelude.Text,
    -- | The workflowId of the workflow execution to signal.
    workflowId :: Prelude.Text,
    -- | The name of the signal. This name must be meaningful to the target
    -- workflow.
    signalName :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'SignalWorkflowExecution' 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:
--
-- 'input', 'signalWorkflowExecution_input' - Data to attach to the @WorkflowExecutionSignaled@ event in the target
-- workflow execution\'s history.
--
-- 'runId', 'signalWorkflowExecution_runId' - The runId of the workflow execution to signal.
--
-- 'domain', 'signalWorkflowExecution_domain' - The name of the domain containing the workflow execution to signal.
--
-- 'workflowId', 'signalWorkflowExecution_workflowId' - The workflowId of the workflow execution to signal.
--
-- 'signalName', 'signalWorkflowExecution_signalName' - The name of the signal. This name must be meaningful to the target
-- workflow.
newSignalWorkflowExecution ::
  -- | 'domain'
  Prelude.Text ->
  -- | 'workflowId'
  Prelude.Text ->
  -- | 'signalName'
  Prelude.Text ->
  SignalWorkflowExecution
newSignalWorkflowExecution
  pDomain_
  pWorkflowId_
  pSignalName_ =
    SignalWorkflowExecution'
      { input = Prelude.Nothing,
        runId = Prelude.Nothing,
        domain = pDomain_,
        workflowId = pWorkflowId_,
        signalName = pSignalName_
      }

-- | Data to attach to the @WorkflowExecutionSignaled@ event in the target
-- workflow execution\'s history.
signalWorkflowExecution_input :: Lens.Lens' SignalWorkflowExecution (Prelude.Maybe Prelude.Text)
signalWorkflowExecution_input = Lens.lens (\SignalWorkflowExecution' {input} -> input) (\s@SignalWorkflowExecution' {} a -> s {input = a} :: SignalWorkflowExecution)

-- | The runId of the workflow execution to signal.
signalWorkflowExecution_runId :: Lens.Lens' SignalWorkflowExecution (Prelude.Maybe Prelude.Text)
signalWorkflowExecution_runId = Lens.lens (\SignalWorkflowExecution' {runId} -> runId) (\s@SignalWorkflowExecution' {} a -> s {runId = a} :: SignalWorkflowExecution)

-- | The name of the domain containing the workflow execution to signal.
signalWorkflowExecution_domain :: Lens.Lens' SignalWorkflowExecution Prelude.Text
signalWorkflowExecution_domain = Lens.lens (\SignalWorkflowExecution' {domain} -> domain) (\s@SignalWorkflowExecution' {} a -> s {domain = a} :: SignalWorkflowExecution)

-- | The workflowId of the workflow execution to signal.
signalWorkflowExecution_workflowId :: Lens.Lens' SignalWorkflowExecution Prelude.Text
signalWorkflowExecution_workflowId = Lens.lens (\SignalWorkflowExecution' {workflowId} -> workflowId) (\s@SignalWorkflowExecution' {} a -> s {workflowId = a} :: SignalWorkflowExecution)

-- | The name of the signal. This name must be meaningful to the target
-- workflow.
signalWorkflowExecution_signalName :: Lens.Lens' SignalWorkflowExecution Prelude.Text
signalWorkflowExecution_signalName = Lens.lens (\SignalWorkflowExecution' {signalName} -> signalName) (\s@SignalWorkflowExecution' {} a -> s {signalName = a} :: SignalWorkflowExecution)

instance Core.AWSRequest SignalWorkflowExecution where
  type
    AWSResponse SignalWorkflowExecution =
      SignalWorkflowExecutionResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveNull
      SignalWorkflowExecutionResponse'

instance Prelude.Hashable SignalWorkflowExecution where
  hashWithSalt _salt SignalWorkflowExecution' {..} =
    _salt
      `Prelude.hashWithSalt` input
      `Prelude.hashWithSalt` runId
      `Prelude.hashWithSalt` domain
      `Prelude.hashWithSalt` workflowId
      `Prelude.hashWithSalt` signalName

instance Prelude.NFData SignalWorkflowExecution where
  rnf SignalWorkflowExecution' {..} =
    Prelude.rnf input
      `Prelude.seq` Prelude.rnf runId
      `Prelude.seq` Prelude.rnf domain
      `Prelude.seq` Prelude.rnf workflowId
      `Prelude.seq` Prelude.rnf signalName

instance Data.ToHeaders SignalWorkflowExecution where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "SimpleWorkflowService.SignalWorkflowExecution" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.0" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON SignalWorkflowExecution where
  toJSON SignalWorkflowExecution' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("input" Data..=) Prelude.<$> input,
            ("runId" Data..=) Prelude.<$> runId,
            Prelude.Just ("domain" Data..= domain),
            Prelude.Just ("workflowId" Data..= workflowId),
            Prelude.Just ("signalName" Data..= signalName)
          ]
      )

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

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

-- | /See:/ 'newSignalWorkflowExecutionResponse' smart constructor.
data SignalWorkflowExecutionResponse = SignalWorkflowExecutionResponse'
  {
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'SignalWorkflowExecutionResponse' 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.
newSignalWorkflowExecutionResponse ::
  SignalWorkflowExecutionResponse
newSignalWorkflowExecutionResponse =
  SignalWorkflowExecutionResponse'

instance
  Prelude.NFData
    SignalWorkflowExecutionResponse
  where
  rnf _ = ()