{-# 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.GameLift.DescribeFleetEvents
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves entries from a fleet\'s event log. Fleet events are initiated
-- by changes in status, such as during fleet creation and termination,
-- changes in capacity, etc. If a fleet has multiple locations, events are
-- also initiated by changes to status and capacity in remote locations.
--
-- 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.
--
-- __Learn more__
--
-- <https://docs.aws.amazon.com/gamelift/latest/developerguide/fleets-intro.html Setting up GameLift fleets>
--
-- This operation returns paginated results.
module Amazonka.GameLift.DescribeFleetEvents
  ( -- * Creating a Request
    DescribeFleetEvents (..),
    newDescribeFleetEvents,

    -- * Request Lenses
    describeFleetEvents_endTime,
    describeFleetEvents_limit,
    describeFleetEvents_nextToken,
    describeFleetEvents_startTime,
    describeFleetEvents_fleetId,

    -- * Destructuring the Response
    DescribeFleetEventsResponse (..),
    newDescribeFleetEventsResponse,

    -- * Response Lenses
    describeFleetEventsResponse_events,
    describeFleetEventsResponse_nextToken,
    describeFleetEventsResponse_httpStatus,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.GameLift.Types
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newDescribeFleetEvents' smart constructor.
data DescribeFleetEvents = DescribeFleetEvents'
  { -- | The 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 a number expressed in Unix time as milliseconds
    -- (ex: \"1469498468.057\").
    endTime :: Prelude.Maybe Data.POSIX,
    -- | The maximum number of results to return. Use this parameter with
    -- @NextToken@ to get results as a set of sequential pages.
    limit :: Prelude.Maybe Prelude.Natural,
    -- | A token that indicates the start of the next sequential page of results.
    -- Use the token that is returned with a previous call to this operation.
    -- To start at the beginning of the result set, do not specify a value.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The 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 a number expressed in Unix
    -- time as milliseconds (ex: \"1469498468.057\").
    startTime :: Prelude.Maybe Data.POSIX,
    -- | A unique identifier for the fleet to get event logs for. You can use
    -- either the fleet ID or ARN value.
    fleetId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeFleetEvents' 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:
--
-- 'endTime', 'describeFleetEvents_endTime' - The 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 a number expressed in Unix time as milliseconds
-- (ex: \"1469498468.057\").
--
-- 'limit', 'describeFleetEvents_limit' - The maximum number of results to return. Use this parameter with
-- @NextToken@ to get results as a set of sequential pages.
--
-- 'nextToken', 'describeFleetEvents_nextToken' - A token that indicates the start of the next sequential page of results.
-- Use the token that is returned with a previous call to this operation.
-- To start at the beginning of the result set, do not specify a value.
--
-- 'startTime', 'describeFleetEvents_startTime' - The 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 a number expressed in Unix
-- time as milliseconds (ex: \"1469498468.057\").
--
-- 'fleetId', 'describeFleetEvents_fleetId' - A unique identifier for the fleet to get event logs for. You can use
-- either the fleet ID or ARN value.
newDescribeFleetEvents ::
  -- | 'fleetId'
  Prelude.Text ->
  DescribeFleetEvents
newDescribeFleetEvents pFleetId_ =
  DescribeFleetEvents'
    { endTime = Prelude.Nothing,
      limit = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      startTime = Prelude.Nothing,
      fleetId = pFleetId_
    }

-- | The 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 a number expressed in Unix time as milliseconds
-- (ex: \"1469498468.057\").
describeFleetEvents_endTime :: Lens.Lens' DescribeFleetEvents (Prelude.Maybe Prelude.UTCTime)
describeFleetEvents_endTime = Lens.lens (\DescribeFleetEvents' {endTime} -> endTime) (\s@DescribeFleetEvents' {} a -> s {endTime = a} :: DescribeFleetEvents) Prelude.. Lens.mapping Data._Time

-- | The maximum number of results to return. Use this parameter with
-- @NextToken@ to get results as a set of sequential pages.
describeFleetEvents_limit :: Lens.Lens' DescribeFleetEvents (Prelude.Maybe Prelude.Natural)
describeFleetEvents_limit = Lens.lens (\DescribeFleetEvents' {limit} -> limit) (\s@DescribeFleetEvents' {} a -> s {limit = a} :: DescribeFleetEvents)

-- | A token that indicates the start of the next sequential page of results.
-- Use the token that is returned with a previous call to this operation.
-- To start at the beginning of the result set, do not specify a value.
describeFleetEvents_nextToken :: Lens.Lens' DescribeFleetEvents (Prelude.Maybe Prelude.Text)
describeFleetEvents_nextToken = Lens.lens (\DescribeFleetEvents' {nextToken} -> nextToken) (\s@DescribeFleetEvents' {} a -> s {nextToken = a} :: DescribeFleetEvents)

-- | The 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 a number expressed in Unix
-- time as milliseconds (ex: \"1469498468.057\").
describeFleetEvents_startTime :: Lens.Lens' DescribeFleetEvents (Prelude.Maybe Prelude.UTCTime)
describeFleetEvents_startTime = Lens.lens (\DescribeFleetEvents' {startTime} -> startTime) (\s@DescribeFleetEvents' {} a -> s {startTime = a} :: DescribeFleetEvents) Prelude.. Lens.mapping Data._Time

-- | A unique identifier for the fleet to get event logs for. You can use
-- either the fleet ID or ARN value.
describeFleetEvents_fleetId :: Lens.Lens' DescribeFleetEvents Prelude.Text
describeFleetEvents_fleetId = Lens.lens (\DescribeFleetEvents' {fleetId} -> fleetId) (\s@DescribeFleetEvents' {} a -> s {fleetId = a} :: DescribeFleetEvents)

instance Core.AWSPager DescribeFleetEvents where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describeFleetEventsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? describeFleetEventsResponse_events
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describeFleetEvents_nextToken
          Lens..~ rs
          Lens.^? describeFleetEventsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable DescribeFleetEvents where
  hashWithSalt _salt DescribeFleetEvents' {..} =
    _salt
      `Prelude.hashWithSalt` endTime
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` startTime
      `Prelude.hashWithSalt` fleetId

instance Prelude.NFData DescribeFleetEvents where
  rnf DescribeFleetEvents' {..} =
    Prelude.rnf endTime
      `Prelude.seq` Prelude.rnf limit
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf startTime
      `Prelude.seq` Prelude.rnf fleetId

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

instance Data.ToJSON DescribeFleetEvents where
  toJSON DescribeFleetEvents' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("EndTime" Data..=) Prelude.<$> endTime,
            ("Limit" Data..=) Prelude.<$> limit,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            ("StartTime" Data..=) Prelude.<$> startTime,
            Prelude.Just ("FleetId" Data..= fleetId)
          ]
      )

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

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

-- | /See:/ 'newDescribeFleetEventsResponse' smart constructor.
data DescribeFleetEventsResponse = DescribeFleetEventsResponse'
  { -- | A collection of objects containing event log entries for the specified
    -- fleet.
    events :: Prelude.Maybe [Event],
    -- | A token that indicates where to resume retrieving results on the next
    -- call to this operation. If no token is returned, these results represent
    -- the end of the list.
    nextToken :: 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 'DescribeFleetEventsResponse' 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:
--
-- 'events', 'describeFleetEventsResponse_events' - A collection of objects containing event log entries for the specified
-- fleet.
--
-- 'nextToken', 'describeFleetEventsResponse_nextToken' - A token that indicates where to resume retrieving results on the next
-- call to this operation. If no token is returned, these results represent
-- the end of the list.
--
-- 'httpStatus', 'describeFleetEventsResponse_httpStatus' - The response's http status code.
newDescribeFleetEventsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeFleetEventsResponse
newDescribeFleetEventsResponse pHttpStatus_ =
  DescribeFleetEventsResponse'
    { events =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | A collection of objects containing event log entries for the specified
-- fleet.
describeFleetEventsResponse_events :: Lens.Lens' DescribeFleetEventsResponse (Prelude.Maybe [Event])
describeFleetEventsResponse_events = Lens.lens (\DescribeFleetEventsResponse' {events} -> events) (\s@DescribeFleetEventsResponse' {} a -> s {events = a} :: DescribeFleetEventsResponse) Prelude.. Lens.mapping Lens.coerced

-- | A token that indicates where to resume retrieving results on the next
-- call to this operation. If no token is returned, these results represent
-- the end of the list.
describeFleetEventsResponse_nextToken :: Lens.Lens' DescribeFleetEventsResponse (Prelude.Maybe Prelude.Text)
describeFleetEventsResponse_nextToken = Lens.lens (\DescribeFleetEventsResponse' {nextToken} -> nextToken) (\s@DescribeFleetEventsResponse' {} a -> s {nextToken = a} :: DescribeFleetEventsResponse)

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

instance Prelude.NFData DescribeFleetEventsResponse where
  rnf DescribeFleetEventsResponse' {..} =
    Prelude.rnf events
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus