{-# 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.IVS.ListStreamSessions
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Gets a summary of current and previous streams for a specified channel
-- in your account, in the AWS region where the API request is processed.
module Amazonka.IVS.ListStreamSessions
  ( -- * Creating a Request
    ListStreamSessions (..),
    newListStreamSessions,

    -- * Request Lenses
    listStreamSessions_maxResults,
    listStreamSessions_nextToken,
    listStreamSessions_channelArn,

    -- * Destructuring the Response
    ListStreamSessionsResponse (..),
    newListStreamSessionsResponse,

    -- * Response Lenses
    listStreamSessionsResponse_nextToken,
    listStreamSessionsResponse_httpStatus,
    listStreamSessionsResponse_streamSessions,
  )
where

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

-- | /See:/ 'newListStreamSessions' smart constructor.
data ListStreamSessions = ListStreamSessions'
  { -- | Maximum number of streams to return. Default: 100.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The first stream to retrieve. This is used for pagination; see the
    -- @nextToken@ response field.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | Channel ARN used to filter the list.
    channelArn :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListStreamSessions' 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:
--
-- 'maxResults', 'listStreamSessions_maxResults' - Maximum number of streams to return. Default: 100.
--
-- 'nextToken', 'listStreamSessions_nextToken' - The first stream to retrieve. This is used for pagination; see the
-- @nextToken@ response field.
--
-- 'channelArn', 'listStreamSessions_channelArn' - Channel ARN used to filter the list.
newListStreamSessions ::
  -- | 'channelArn'
  Prelude.Text ->
  ListStreamSessions
newListStreamSessions pChannelArn_ =
  ListStreamSessions'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      channelArn = pChannelArn_
    }

-- | Maximum number of streams to return. Default: 100.
listStreamSessions_maxResults :: Lens.Lens' ListStreamSessions (Prelude.Maybe Prelude.Natural)
listStreamSessions_maxResults = Lens.lens (\ListStreamSessions' {maxResults} -> maxResults) (\s@ListStreamSessions' {} a -> s {maxResults = a} :: ListStreamSessions)

-- | The first stream to retrieve. This is used for pagination; see the
-- @nextToken@ response field.
listStreamSessions_nextToken :: Lens.Lens' ListStreamSessions (Prelude.Maybe Prelude.Text)
listStreamSessions_nextToken = Lens.lens (\ListStreamSessions' {nextToken} -> nextToken) (\s@ListStreamSessions' {} a -> s {nextToken = a} :: ListStreamSessions)

-- | Channel ARN used to filter the list.
listStreamSessions_channelArn :: Lens.Lens' ListStreamSessions Prelude.Text
listStreamSessions_channelArn = Lens.lens (\ListStreamSessions' {channelArn} -> channelArn) (\s@ListStreamSessions' {} a -> s {channelArn = a} :: ListStreamSessions)

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

instance Prelude.Hashable ListStreamSessions where
  hashWithSalt _salt ListStreamSessions' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` channelArn

instance Prelude.NFData ListStreamSessions where
  rnf ListStreamSessions' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf channelArn

instance Data.ToHeaders ListStreamSessions where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListStreamSessions where
  toJSON ListStreamSessions' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("maxResults" Data..=) Prelude.<$> maxResults,
            ("nextToken" Data..=) Prelude.<$> nextToken,
            Prelude.Just ("channelArn" Data..= channelArn)
          ]
      )

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

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

-- | /See:/ 'newListStreamSessionsResponse' smart constructor.
data ListStreamSessionsResponse = ListStreamSessionsResponse'
  { -- | If there are more streams than @maxResults@, use @nextToken@ in the
    -- request to get the next set.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | List of stream sessions.
    streamSessions :: [StreamSessionSummary]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListStreamSessionsResponse' 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:
--
-- 'nextToken', 'listStreamSessionsResponse_nextToken' - If there are more streams than @maxResults@, use @nextToken@ in the
-- request to get the next set.
--
-- 'httpStatus', 'listStreamSessionsResponse_httpStatus' - The response's http status code.
--
-- 'streamSessions', 'listStreamSessionsResponse_streamSessions' - List of stream sessions.
newListStreamSessionsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListStreamSessionsResponse
newListStreamSessionsResponse pHttpStatus_ =
  ListStreamSessionsResponse'
    { nextToken =
        Prelude.Nothing,
      httpStatus = pHttpStatus_,
      streamSessions = Prelude.mempty
    }

-- | If there are more streams than @maxResults@, use @nextToken@ in the
-- request to get the next set.
listStreamSessionsResponse_nextToken :: Lens.Lens' ListStreamSessionsResponse (Prelude.Maybe Prelude.Text)
listStreamSessionsResponse_nextToken = Lens.lens (\ListStreamSessionsResponse' {nextToken} -> nextToken) (\s@ListStreamSessionsResponse' {} a -> s {nextToken = a} :: ListStreamSessionsResponse)

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

-- | List of stream sessions.
listStreamSessionsResponse_streamSessions :: Lens.Lens' ListStreamSessionsResponse [StreamSessionSummary]
listStreamSessionsResponse_streamSessions = Lens.lens (\ListStreamSessionsResponse' {streamSessions} -> streamSessions) (\s@ListStreamSessionsResponse' {} a -> s {streamSessions = a} :: ListStreamSessionsResponse) Prelude.. Lens.coerced

instance Prelude.NFData ListStreamSessionsResponse where
  rnf ListStreamSessionsResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf streamSessions