{-# 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.DescribeGameSessions
-- 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 a set of one or more game sessions in a specific fleet
-- location. You can optionally filter the results by current game session
-- status.
--
-- This operation can be used in the following ways:
--
-- -   To retrieve all game sessions that are currently running on all
--     locations in a fleet, provide a fleet or alias ID, with an optional
--     status filter. This approach returns all game sessions in the
--     fleet\'s home Region and all remote locations.
--
-- -   To retrieve all game sessions that are currently running on a
--     specific fleet location, provide a fleet or alias ID and a location
--     name, with optional status filter. The location can be the fleet\'s
--     home Region or any remote location.
--
-- -   To retrieve a specific game session, provide the game session ID.
--     This approach looks for the game session ID in all fleets that
--     reside in the Amazon Web Services Region defined in the request.
--
-- Use the pagination parameters to retrieve results as a set of sequential
-- pages.
--
-- If successful, a @GameSession@ object is returned for each game session
-- that matches the request.
--
-- This operation is not designed to be continually called to track game
-- session status. This practice can cause you to exceed your API limit,
-- which results in errors. Instead, you must configure an Amazon Simple
-- Notification Service (SNS) topic to receive notifications from FlexMatch
-- or queues. Continuously polling with @DescribeGameSessions@ should only
-- be used for games in development with low game session usage.
--
-- /Available in Amazon GameLift Local./
--
-- __Learn more__
--
-- <https://docs.aws.amazon.com/gamelift/latest/developerguide/gamelift-sdk-client-api.html#gamelift-sdk-client-api-find Find a game session>
--
-- <https://docs.aws.amazon.com/gamelift/latest/developerguide/reference-awssdk.html#reference-awssdk-resources-fleets All APIs by task>
--
-- This operation returns paginated results.
module Amazonka.GameLift.DescribeGameSessions
  ( -- * Creating a Request
    DescribeGameSessions (..),
    newDescribeGameSessions,

    -- * Request Lenses
    describeGameSessions_aliasId,
    describeGameSessions_fleetId,
    describeGameSessions_gameSessionId,
    describeGameSessions_limit,
    describeGameSessions_location,
    describeGameSessions_nextToken,
    describeGameSessions_statusFilter,

    -- * Destructuring the Response
    DescribeGameSessionsResponse (..),
    newDescribeGameSessionsResponse,

    -- * Response Lenses
    describeGameSessionsResponse_gameSessions,
    describeGameSessionsResponse_nextToken,
    describeGameSessionsResponse_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:/ 'newDescribeGameSessions' smart constructor.
data DescribeGameSessions = DescribeGameSessions'
  { -- | A unique identifier for the alias associated with the fleet to retrieve
    -- game sessions for. You can use either the alias ID or ARN value.
    aliasId :: Prelude.Maybe Prelude.Text,
    -- | A unique identifier for the fleet to retrieve game sessions for. You can
    -- use either the fleet ID or ARN value.
    fleetId :: Prelude.Maybe Prelude.Text,
    -- | A unique identifier for the game session to retrieve.
    gameSessionId :: Prelude.Maybe Prelude.Text,
    -- | 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 fleet location to get game sessions for. You can specify a fleet\'s
    -- home Region or a remote location. Use the Amazon Web Services Region
    -- code format, such as @us-west-2@.
    location :: Prelude.Maybe Prelude.Text,
    -- | 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,
    -- | Game session status to filter results on. You can filter on the
    -- following states: @ACTIVE@, @TERMINATED@, @ACTIVATING@, and
    -- @TERMINATING@. The last two are transitory and used for only very brief
    -- periods of time.
    statusFilter :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeGameSessions' 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:
--
-- 'aliasId', 'describeGameSessions_aliasId' - A unique identifier for the alias associated with the fleet to retrieve
-- game sessions for. You can use either the alias ID or ARN value.
--
-- 'fleetId', 'describeGameSessions_fleetId' - A unique identifier for the fleet to retrieve game sessions for. You can
-- use either the fleet ID or ARN value.
--
-- 'gameSessionId', 'describeGameSessions_gameSessionId' - A unique identifier for the game session to retrieve.
--
-- 'limit', 'describeGameSessions_limit' - The maximum number of results to return. Use this parameter with
-- @NextToken@ to get results as a set of sequential pages.
--
-- 'location', 'describeGameSessions_location' - A fleet location to get game sessions for. You can specify a fleet\'s
-- home Region or a remote location. Use the Amazon Web Services Region
-- code format, such as @us-west-2@.
--
-- 'nextToken', 'describeGameSessions_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.
--
-- 'statusFilter', 'describeGameSessions_statusFilter' - Game session status to filter results on. You can filter on the
-- following states: @ACTIVE@, @TERMINATED@, @ACTIVATING@, and
-- @TERMINATING@. The last two are transitory and used for only very brief
-- periods of time.
newDescribeGameSessions ::
  DescribeGameSessions
newDescribeGameSessions =
  DescribeGameSessions'
    { aliasId = Prelude.Nothing,
      fleetId = Prelude.Nothing,
      gameSessionId = Prelude.Nothing,
      limit = Prelude.Nothing,
      location = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      statusFilter = Prelude.Nothing
    }

-- | A unique identifier for the alias associated with the fleet to retrieve
-- game sessions for. You can use either the alias ID or ARN value.
describeGameSessions_aliasId :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_aliasId = Lens.lens (\DescribeGameSessions' {aliasId} -> aliasId) (\s@DescribeGameSessions' {} a -> s {aliasId = a} :: DescribeGameSessions)

-- | A unique identifier for the fleet to retrieve game sessions for. You can
-- use either the fleet ID or ARN value.
describeGameSessions_fleetId :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_fleetId = Lens.lens (\DescribeGameSessions' {fleetId} -> fleetId) (\s@DescribeGameSessions' {} a -> s {fleetId = a} :: DescribeGameSessions)

-- | A unique identifier for the game session to retrieve.
describeGameSessions_gameSessionId :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_gameSessionId = Lens.lens (\DescribeGameSessions' {gameSessionId} -> gameSessionId) (\s@DescribeGameSessions' {} a -> s {gameSessionId = a} :: DescribeGameSessions)

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

-- | A fleet location to get game sessions for. You can specify a fleet\'s
-- home Region or a remote location. Use the Amazon Web Services Region
-- code format, such as @us-west-2@.
describeGameSessions_location :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_location = Lens.lens (\DescribeGameSessions' {location} -> location) (\s@DescribeGameSessions' {} a -> s {location = a} :: DescribeGameSessions)

-- | 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.
describeGameSessions_nextToken :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_nextToken = Lens.lens (\DescribeGameSessions' {nextToken} -> nextToken) (\s@DescribeGameSessions' {} a -> s {nextToken = a} :: DescribeGameSessions)

-- | Game session status to filter results on. You can filter on the
-- following states: @ACTIVE@, @TERMINATED@, @ACTIVATING@, and
-- @TERMINATING@. The last two are transitory and used for only very brief
-- periods of time.
describeGameSessions_statusFilter :: Lens.Lens' DescribeGameSessions (Prelude.Maybe Prelude.Text)
describeGameSessions_statusFilter = Lens.lens (\DescribeGameSessions' {statusFilter} -> statusFilter) (\s@DescribeGameSessions' {} a -> s {statusFilter = a} :: DescribeGameSessions)

instance Core.AWSPager DescribeGameSessions where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describeGameSessionsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? describeGameSessionsResponse_gameSessions
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describeGameSessions_nextToken
          Lens..~ rs
          Lens.^? describeGameSessionsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable DescribeGameSessions where
  hashWithSalt _salt DescribeGameSessions' {..} =
    _salt
      `Prelude.hashWithSalt` aliasId
      `Prelude.hashWithSalt` fleetId
      `Prelude.hashWithSalt` gameSessionId
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` location
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` statusFilter

instance Prelude.NFData DescribeGameSessions where
  rnf DescribeGameSessions' {..} =
    Prelude.rnf aliasId
      `Prelude.seq` Prelude.rnf fleetId
      `Prelude.seq` Prelude.rnf gameSessionId
      `Prelude.seq` Prelude.rnf limit
      `Prelude.seq` Prelude.rnf location
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf statusFilter

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

instance Data.ToJSON DescribeGameSessions where
  toJSON DescribeGameSessions' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("AliasId" Data..=) Prelude.<$> aliasId,
            ("FleetId" Data..=) Prelude.<$> fleetId,
            ("GameSessionId" Data..=) Prelude.<$> gameSessionId,
            ("Limit" Data..=) Prelude.<$> limit,
            ("Location" Data..=) Prelude.<$> location,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            ("StatusFilter" Data..=) Prelude.<$> statusFilter
          ]
      )

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

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

-- | /See:/ 'newDescribeGameSessionsResponse' smart constructor.
data DescribeGameSessionsResponse = DescribeGameSessionsResponse'
  { -- | A collection of properties for each game session that matches the
    -- request.
    gameSessions :: Prelude.Maybe [GameSession],
    -- | 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 'DescribeGameSessionsResponse' 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:
--
-- 'gameSessions', 'describeGameSessionsResponse_gameSessions' - A collection of properties for each game session that matches the
-- request.
--
-- 'nextToken', 'describeGameSessionsResponse_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', 'describeGameSessionsResponse_httpStatus' - The response's http status code.
newDescribeGameSessionsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeGameSessionsResponse
newDescribeGameSessionsResponse pHttpStatus_ =
  DescribeGameSessionsResponse'
    { gameSessions =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | A collection of properties for each game session that matches the
-- request.
describeGameSessionsResponse_gameSessions :: Lens.Lens' DescribeGameSessionsResponse (Prelude.Maybe [GameSession])
describeGameSessionsResponse_gameSessions = Lens.lens (\DescribeGameSessionsResponse' {gameSessions} -> gameSessions) (\s@DescribeGameSessionsResponse' {} a -> s {gameSessions = a} :: DescribeGameSessionsResponse) 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.
describeGameSessionsResponse_nextToken :: Lens.Lens' DescribeGameSessionsResponse (Prelude.Maybe Prelude.Text)
describeGameSessionsResponse_nextToken = Lens.lens (\DescribeGameSessionsResponse' {nextToken} -> nextToken) (\s@DescribeGameSessionsResponse' {} a -> s {nextToken = a} :: DescribeGameSessionsResponse)

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

instance Prelude.NFData DescribeGameSessionsResponse where
  rnf DescribeGameSessionsResponse' {..} =
    Prelude.rnf gameSessions
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus