{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
{-# LANGUAGE OverloadedStrings  #-}
{-# LANGUAGE RecordWildCards    #-}
{-# LANGUAGE TypeFamilies       #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-binds   #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Network.AWS.SWF.CountClosedWorkflowExecutions
-- Copyright   : (c) 2013-2018 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 number of closed workflow executions within the given domain that meet the specified filtering criteria.
--
--
-- __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.
--
--     * Constrain the following parameters by using a @Condition@ element with the appropriate keys.
--
--     * @tagFilter.tag@ : String constraint. The key is @swf:tagFilter.tag@ .
--
--     * @typeFilter.name@ : String constraint. The key is @swf:typeFilter.name@ .
--
--     * @typeFilter.version@ : String constraint. The key is @swf:typeFilter.version@ .
--
--
--
--
--
-- 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 <http://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 Network.AWS.SWF.CountClosedWorkflowExecutions
    (
    -- * Creating a Request
      countClosedWorkflowExecutions
    , CountClosedWorkflowExecutions
    -- * Request Lenses
    , ccweExecutionFilter
    , ccweCloseStatusFilter
    , ccweTypeFilter
    , ccweCloseTimeFilter
    , ccweTagFilter
    , ccweStartTimeFilter
    , ccweDomain

    -- * Destructuring the Response
    , workflowExecutionCount
    , WorkflowExecutionCount
    -- * Response Lenses
    , wecTruncated
    , wecCount
    ) where

import Network.AWS.Lens
import Network.AWS.Prelude
import Network.AWS.Request
import Network.AWS.Response
import Network.AWS.SWF.Types
import Network.AWS.SWF.Types.Product

-- | /See:/ 'countClosedWorkflowExecutions' smart constructor.
data CountClosedWorkflowExecutions = CountClosedWorkflowExecutions'
  { _ccweExecutionFilter   :: !(Maybe WorkflowExecutionFilter)
  , _ccweCloseStatusFilter :: !(Maybe CloseStatusFilter)
  , _ccweTypeFilter        :: !(Maybe WorkflowTypeFilter)
  , _ccweCloseTimeFilter   :: !(Maybe ExecutionTimeFilter)
  , _ccweTagFilter         :: !(Maybe TagFilter)
  , _ccweStartTimeFilter   :: !(Maybe ExecutionTimeFilter)
  , _ccweDomain            :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'CountClosedWorkflowExecutions' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ccweExecutionFilter' - If specified, only workflow executions matching the @WorkflowId@ in the filter are counted.
--
-- * 'ccweCloseStatusFilter' - If specified, only workflow executions that match this close status are counted. This filter has an affect only if @executionStatus@ is specified as @CLOSED@ .
--
-- * 'ccweTypeFilter' - If specified, indicates the type of the workflow executions to be counted.
--
-- * 'ccweCloseTimeFilter' - If specified, only workflow executions that meet the close time criteria of the filter are counted.
--
-- * 'ccweTagFilter' - If specified, only executions that have a tag that matches the filter are counted.
--
-- * 'ccweStartTimeFilter' - If specified, only workflow executions that meet the start time criteria of the filter are counted.
--
-- * 'ccweDomain' - The name of the domain containing the workflow executions to count.
countClosedWorkflowExecutions
    :: Text -- ^ 'ccweDomain'
    -> CountClosedWorkflowExecutions
countClosedWorkflowExecutions pDomain_ =
  CountClosedWorkflowExecutions'
    { _ccweExecutionFilter = Nothing
    , _ccweCloseStatusFilter = Nothing
    , _ccweTypeFilter = Nothing
    , _ccweCloseTimeFilter = Nothing
    , _ccweTagFilter = Nothing
    , _ccweStartTimeFilter = Nothing
    , _ccweDomain = pDomain_
    }


-- | If specified, only workflow executions matching the @WorkflowId@ in the filter are counted.
ccweExecutionFilter :: Lens' CountClosedWorkflowExecutions (Maybe WorkflowExecutionFilter)
ccweExecutionFilter = lens _ccweExecutionFilter (\ s a -> s{_ccweExecutionFilter = a})

-- | If specified, only workflow executions that match this close status are counted. This filter has an affect only if @executionStatus@ is specified as @CLOSED@ .
ccweCloseStatusFilter :: Lens' CountClosedWorkflowExecutions (Maybe CloseStatusFilter)
ccweCloseStatusFilter = lens _ccweCloseStatusFilter (\ s a -> s{_ccweCloseStatusFilter = a})

-- | If specified, indicates the type of the workflow executions to be counted.
ccweTypeFilter :: Lens' CountClosedWorkflowExecutions (Maybe WorkflowTypeFilter)
ccweTypeFilter = lens _ccweTypeFilter (\ s a -> s{_ccweTypeFilter = a})

-- | If specified, only workflow executions that meet the close time criteria of the filter are counted.
ccweCloseTimeFilter :: Lens' CountClosedWorkflowExecutions (Maybe ExecutionTimeFilter)
ccweCloseTimeFilter = lens _ccweCloseTimeFilter (\ s a -> s{_ccweCloseTimeFilter = a})

-- | If specified, only executions that have a tag that matches the filter are counted.
ccweTagFilter :: Lens' CountClosedWorkflowExecutions (Maybe TagFilter)
ccweTagFilter = lens _ccweTagFilter (\ s a -> s{_ccweTagFilter = a})

-- | If specified, only workflow executions that meet the start time criteria of the filter are counted.
ccweStartTimeFilter :: Lens' CountClosedWorkflowExecutions (Maybe ExecutionTimeFilter)
ccweStartTimeFilter = lens _ccweStartTimeFilter (\ s a -> s{_ccweStartTimeFilter = a})

-- | The name of the domain containing the workflow executions to count.
ccweDomain :: Lens' CountClosedWorkflowExecutions Text
ccweDomain = lens _ccweDomain (\ s a -> s{_ccweDomain = a})

instance AWSRequest CountClosedWorkflowExecutions
         where
        type Rs CountClosedWorkflowExecutions =
             WorkflowExecutionCount
        request = postJSON swf
        response = receiveJSON (\ s h x -> eitherParseJSON x)

instance Hashable CountClosedWorkflowExecutions where

instance NFData CountClosedWorkflowExecutions where

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

instance ToJSON CountClosedWorkflowExecutions where
        toJSON CountClosedWorkflowExecutions'{..}
          = object
              (catMaybes
                 [("executionFilter" .=) <$> _ccweExecutionFilter,
                  ("closeStatusFilter" .=) <$> _ccweCloseStatusFilter,
                  ("typeFilter" .=) <$> _ccweTypeFilter,
                  ("closeTimeFilter" .=) <$> _ccweCloseTimeFilter,
                  ("tagFilter" .=) <$> _ccweTagFilter,
                  ("startTimeFilter" .=) <$> _ccweStartTimeFilter,
                  Just ("domain" .= _ccweDomain)])

instance ToPath CountClosedWorkflowExecutions where
        toPath = const "/"

instance ToQuery CountClosedWorkflowExecutions where
        toQuery = const mempty