{-# 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.GameLift.DescribeFleetEvents
-- Copyright   : (c) 2013-2016 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves entries from the fleet event log. You can specify a time range
-- to limit the result set. Use the pagination parameters to retrieve
-- results as a set of sequential pages. If successful, a collection of
-- event log entries matching the request are returned.
module Network.AWS.GameLift.DescribeFleetEvents
    (
    -- * Creating a Request
      describeFleetEvents
    , DescribeFleetEvents
    -- * Request Lenses
    , dfeStartTime
    , dfeNextToken
    , dfeEndTime
    , dfeLimit
    , dfeFleetId

    -- * Destructuring the Response
    , describeFleetEventsResponse
    , DescribeFleetEventsResponse
    -- * Response Lenses
    , dfersNextToken
    , dfersEvents
    , dfersResponseStatus
    ) where

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

-- | Represents the input for a request action.
--
-- /See:/ 'describeFleetEvents' smart constructor.
data DescribeFleetEvents = DescribeFleetEvents'
    { _dfeStartTime :: !(Maybe POSIX)
    , _dfeNextToken :: !(Maybe Text)
    , _dfeEndTime   :: !(Maybe POSIX)
    , _dfeLimit     :: !(Maybe Nat)
    , _dfeFleetId   :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeFleetEvents' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dfeStartTime'
--
-- * 'dfeNextToken'
--
-- * 'dfeEndTime'
--
-- * 'dfeLimit'
--
-- * 'dfeFleetId'
describeFleetEvents
    :: Text -- ^ 'dfeFleetId'
    -> DescribeFleetEvents
describeFleetEvents pFleetId_ =
    DescribeFleetEvents'
    { _dfeStartTime = Nothing
    , _dfeNextToken = Nothing
    , _dfeEndTime = Nothing
    , _dfeLimit = Nothing
    , _dfeFleetId = pFleetId_
    }

-- | Earliest date to retrieve event logs for. If no start time is specified,
-- this call returns entries starting from when the fleet was created to
-- the specified end time. Format is an integer representing the number of
-- seconds since the Unix epoch (Unix time).
dfeStartTime :: Lens' DescribeFleetEvents (Maybe UTCTime)
dfeStartTime = lens _dfeStartTime (\ s a -> s{_dfeStartTime = a}) . mapping _Time;

-- | Token indicating the start of the next sequential page of results. Use
-- the token that is returned with a previous call to this action. To
-- specify the start of the result set, do not specify a value.
dfeNextToken :: Lens' DescribeFleetEvents (Maybe Text)
dfeNextToken = lens _dfeNextToken (\ s a -> s{_dfeNextToken = a});

-- | Most recent date to retrieve event logs for. If no end time is
-- specified, this call returns entries from the specified start time up to
-- the present. Format is an integer representing the number of seconds
-- since the Unix epoch (Unix time).
dfeEndTime :: Lens' DescribeFleetEvents (Maybe UTCTime)
dfeEndTime = lens _dfeEndTime (\ s a -> s{_dfeEndTime = a}) . mapping _Time;

-- | Maximum number of results to return. You can use this parameter with
-- /NextToken/ to get results as a set of sequential pages.
dfeLimit :: Lens' DescribeFleetEvents (Maybe Natural)
dfeLimit = lens _dfeLimit (\ s a -> s{_dfeLimit = a}) . mapping _Nat;

-- | Unique identifier for the fleet to get event logs for.
dfeFleetId :: Lens' DescribeFleetEvents Text
dfeFleetId = lens _dfeFleetId (\ s a -> s{_dfeFleetId = a});

instance AWSRequest DescribeFleetEvents where
        type Rs DescribeFleetEvents =
             DescribeFleetEventsResponse
        request = postJSON gameLift
        response
          = receiveJSON
              (\ s h x ->
                 DescribeFleetEventsResponse' <$>
                   (x .?> "NextToken") <*> (x .?> "Events" .!@ mempty)
                     <*> (pure (fromEnum s)))

instance Hashable DescribeFleetEvents

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

instance ToJSON DescribeFleetEvents where
        toJSON DescribeFleetEvents'{..}
          = object
              (catMaybes
                 [("StartTime" .=) <$> _dfeStartTime,
                  ("NextToken" .=) <$> _dfeNextToken,
                  ("EndTime" .=) <$> _dfeEndTime,
                  ("Limit" .=) <$> _dfeLimit,
                  Just ("FleetId" .= _dfeFleetId)])

instance ToPath DescribeFleetEvents where
        toPath = const "/"

instance ToQuery DescribeFleetEvents where
        toQuery = const mempty

-- | Represents the returned data in response to a request action.
--
-- /See:/ 'describeFleetEventsResponse' smart constructor.
data DescribeFleetEventsResponse = DescribeFleetEventsResponse'
    { _dfersNextToken      :: !(Maybe Text)
    , _dfersEvents         :: !(Maybe [Event])
    , _dfersResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeFleetEventsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dfersNextToken'
--
-- * 'dfersEvents'
--
-- * 'dfersResponseStatus'
describeFleetEventsResponse
    :: Int -- ^ 'dfersResponseStatus'
    -> DescribeFleetEventsResponse
describeFleetEventsResponse pResponseStatus_ =
    DescribeFleetEventsResponse'
    { _dfersNextToken = Nothing
    , _dfersEvents = Nothing
    , _dfersResponseStatus = pResponseStatus_
    }

-- | Token indicating where to resume retrieving results on the next call to
-- this action. If no token is returned, these results represent the end of
-- the list.
--
-- If a request has a limit that exactly matches the number of remaining
-- results, a token is returned even though there are no more results to
-- retrieve.
dfersNextToken :: Lens' DescribeFleetEventsResponse (Maybe Text)
dfersNextToken = lens _dfersNextToken (\ s a -> s{_dfersNextToken = a});

-- | Collection of objects containing event log entries for the specified
-- fleet.
dfersEvents :: Lens' DescribeFleetEventsResponse [Event]
dfersEvents = lens _dfersEvents (\ s a -> s{_dfersEvents = a}) . _Default . _Coerce;

-- | The response status code.
dfersResponseStatus :: Lens' DescribeFleetEventsResponse Int
dfersResponseStatus = lens _dfersResponseStatus (\ s a -> s{_dfersResponseStatus = a});