{-# 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.Lightsail.GetInstanceSnapshots
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns all instance snapshots for the user\'s account.
--
-- This operation returns paginated results.
module Amazonka.Lightsail.GetInstanceSnapshots
  ( -- * Creating a Request
    GetInstanceSnapshots (..),
    newGetInstanceSnapshots,

    -- * Request Lenses
    getInstanceSnapshots_pageToken,

    -- * Destructuring the Response
    GetInstanceSnapshotsResponse (..),
    newGetInstanceSnapshotsResponse,

    -- * Response Lenses
    getInstanceSnapshotsResponse_instanceSnapshots,
    getInstanceSnapshotsResponse_nextPageToken,
    getInstanceSnapshotsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newGetInstanceSnapshots' smart constructor.
data GetInstanceSnapshots = GetInstanceSnapshots'
  { -- | The token to advance to the next page of results from your request.
    --
    -- To get a page token, perform an initial @GetInstanceSnapshots@ request.
    -- If your results are paginated, the response will return a next page
    -- token that you can specify as the page token in a subsequent request.
    pageToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetInstanceSnapshots' 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:
--
-- 'pageToken', 'getInstanceSnapshots_pageToken' - The token to advance to the next page of results from your request.
--
-- To get a page token, perform an initial @GetInstanceSnapshots@ request.
-- If your results are paginated, the response will return a next page
-- token that you can specify as the page token in a subsequent request.
newGetInstanceSnapshots ::
  GetInstanceSnapshots
newGetInstanceSnapshots =
  GetInstanceSnapshots' {pageToken = Prelude.Nothing}

-- | The token to advance to the next page of results from your request.
--
-- To get a page token, perform an initial @GetInstanceSnapshots@ request.
-- If your results are paginated, the response will return a next page
-- token that you can specify as the page token in a subsequent request.
getInstanceSnapshots_pageToken :: Lens.Lens' GetInstanceSnapshots (Prelude.Maybe Prelude.Text)
getInstanceSnapshots_pageToken = Lens.lens (\GetInstanceSnapshots' {pageToken} -> pageToken) (\s@GetInstanceSnapshots' {} a -> s {pageToken = a} :: GetInstanceSnapshots)

instance Core.AWSPager GetInstanceSnapshots where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? getInstanceSnapshotsResponse_nextPageToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? getInstanceSnapshotsResponse_instanceSnapshots
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& getInstanceSnapshots_pageToken
          Lens..~ rs
          Lens.^? getInstanceSnapshotsResponse_nextPageToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable GetInstanceSnapshots where
  hashWithSalt _salt GetInstanceSnapshots' {..} =
    _salt `Prelude.hashWithSalt` pageToken

instance Prelude.NFData GetInstanceSnapshots where
  rnf GetInstanceSnapshots' {..} = Prelude.rnf pageToken

instance Data.ToHeaders GetInstanceSnapshots where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "Lightsail_20161128.GetInstanceSnapshots" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON GetInstanceSnapshots where
  toJSON GetInstanceSnapshots' {..} =
    Data.object
      ( Prelude.catMaybes
          [("pageToken" Data..=) Prelude.<$> pageToken]
      )

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

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

-- | /See:/ 'newGetInstanceSnapshotsResponse' smart constructor.
data GetInstanceSnapshotsResponse = GetInstanceSnapshotsResponse'
  { -- | An array of key-value pairs containing information about the results of
    -- your get instance snapshots request.
    instanceSnapshots :: Prelude.Maybe [InstanceSnapshot],
    -- | The token to advance to the next page of results from your request.
    --
    -- A next page token is not returned if there are no more results to
    -- display.
    --
    -- To get the next page of results, perform another @GetInstanceSnapshots@
    -- request and specify the next page token using the @pageToken@ parameter.
    nextPageToken :: 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 'GetInstanceSnapshotsResponse' 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:
--
-- 'instanceSnapshots', 'getInstanceSnapshotsResponse_instanceSnapshots' - An array of key-value pairs containing information about the results of
-- your get instance snapshots request.
--
-- 'nextPageToken', 'getInstanceSnapshotsResponse_nextPageToken' - The token to advance to the next page of results from your request.
--
-- A next page token is not returned if there are no more results to
-- display.
--
-- To get the next page of results, perform another @GetInstanceSnapshots@
-- request and specify the next page token using the @pageToken@ parameter.
--
-- 'httpStatus', 'getInstanceSnapshotsResponse_httpStatus' - The response's http status code.
newGetInstanceSnapshotsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetInstanceSnapshotsResponse
newGetInstanceSnapshotsResponse pHttpStatus_ =
  GetInstanceSnapshotsResponse'
    { instanceSnapshots =
        Prelude.Nothing,
      nextPageToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | An array of key-value pairs containing information about the results of
-- your get instance snapshots request.
getInstanceSnapshotsResponse_instanceSnapshots :: Lens.Lens' GetInstanceSnapshotsResponse (Prelude.Maybe [InstanceSnapshot])
getInstanceSnapshotsResponse_instanceSnapshots = Lens.lens (\GetInstanceSnapshotsResponse' {instanceSnapshots} -> instanceSnapshots) (\s@GetInstanceSnapshotsResponse' {} a -> s {instanceSnapshots = a} :: GetInstanceSnapshotsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The token to advance to the next page of results from your request.
--
-- A next page token is not returned if there are no more results to
-- display.
--
-- To get the next page of results, perform another @GetInstanceSnapshots@
-- request and specify the next page token using the @pageToken@ parameter.
getInstanceSnapshotsResponse_nextPageToken :: Lens.Lens' GetInstanceSnapshotsResponse (Prelude.Maybe Prelude.Text)
getInstanceSnapshotsResponse_nextPageToken = Lens.lens (\GetInstanceSnapshotsResponse' {nextPageToken} -> nextPageToken) (\s@GetInstanceSnapshotsResponse' {} a -> s {nextPageToken = a} :: GetInstanceSnapshotsResponse)

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

instance Prelude.NFData GetInstanceSnapshotsResponse where
  rnf GetInstanceSnapshotsResponse' {..} =
    Prelude.rnf instanceSnapshots
      `Prelude.seq` Prelude.rnf nextPageToken
      `Prelude.seq` Prelude.rnf httpStatus