{-# 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.MechanicalTurk.ListWorkerBlocks
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- The @ListWorkersBlocks@ operation retrieves a list of Workers who are
-- blocked from working on your HITs.
--
-- This operation returns paginated results.
module Amazonka.MechanicalTurk.ListWorkerBlocks
  ( -- * Creating a Request
    ListWorkerBlocks (..),
    newListWorkerBlocks,

    -- * Request Lenses
    listWorkerBlocks_maxResults,
    listWorkerBlocks_nextToken,

    -- * Destructuring the Response
    ListWorkerBlocksResponse (..),
    newListWorkerBlocksResponse,

    -- * Response Lenses
    listWorkerBlocksResponse_nextToken,
    listWorkerBlocksResponse_numResults,
    listWorkerBlocksResponse_workerBlocks,
    listWorkerBlocksResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListWorkerBlocks' smart constructor.
data ListWorkerBlocks = ListWorkerBlocks'
  { maxResults :: Prelude.Maybe Prelude.Natural,
    -- | Pagination token
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListWorkerBlocks' 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', 'listWorkerBlocks_maxResults' - Undocumented member.
--
-- 'nextToken', 'listWorkerBlocks_nextToken' - Pagination token
newListWorkerBlocks ::
  ListWorkerBlocks
newListWorkerBlocks =
  ListWorkerBlocks'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | Undocumented member.
listWorkerBlocks_maxResults :: Lens.Lens' ListWorkerBlocks (Prelude.Maybe Prelude.Natural)
listWorkerBlocks_maxResults = Lens.lens (\ListWorkerBlocks' {maxResults} -> maxResults) (\s@ListWorkerBlocks' {} a -> s {maxResults = a} :: ListWorkerBlocks)

-- | Pagination token
listWorkerBlocks_nextToken :: Lens.Lens' ListWorkerBlocks (Prelude.Maybe Prelude.Text)
listWorkerBlocks_nextToken = Lens.lens (\ListWorkerBlocks' {nextToken} -> nextToken) (\s@ListWorkerBlocks' {} a -> s {nextToken = a} :: ListWorkerBlocks)

instance Core.AWSPager ListWorkerBlocks where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listWorkerBlocksResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listWorkerBlocksResponse_workerBlocks
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listWorkerBlocks_nextToken
          Lens..~ rs
          Lens.^? listWorkerBlocksResponse_nextToken
          Prelude.. Lens._Just

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

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

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

instance Data.ToHeaders ListWorkerBlocks where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "MTurkRequesterServiceV20170117.ListWorkerBlocks" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

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

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

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

-- | /See:/ 'newListWorkerBlocksResponse' smart constructor.
data ListWorkerBlocksResponse = ListWorkerBlocksResponse'
  { nextToken :: Prelude.Maybe Prelude.Text,
    -- | The number of assignments on the page in the filtered results list,
    -- equivalent to the number of assignments returned by this call.
    numResults :: Prelude.Maybe Prelude.Int,
    -- | The list of WorkerBlocks, containing the collection of Worker IDs and
    -- reasons for blocking.
    workerBlocks :: Prelude.Maybe [WorkerBlock],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListWorkerBlocksResponse' 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', 'listWorkerBlocksResponse_nextToken' - Undocumented member.
--
-- 'numResults', 'listWorkerBlocksResponse_numResults' - The number of assignments on the page in the filtered results list,
-- equivalent to the number of assignments returned by this call.
--
-- 'workerBlocks', 'listWorkerBlocksResponse_workerBlocks' - The list of WorkerBlocks, containing the collection of Worker IDs and
-- reasons for blocking.
--
-- 'httpStatus', 'listWorkerBlocksResponse_httpStatus' - The response's http status code.
newListWorkerBlocksResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListWorkerBlocksResponse
newListWorkerBlocksResponse pHttpStatus_ =
  ListWorkerBlocksResponse'
    { nextToken =
        Prelude.Nothing,
      numResults = Prelude.Nothing,
      workerBlocks = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Undocumented member.
listWorkerBlocksResponse_nextToken :: Lens.Lens' ListWorkerBlocksResponse (Prelude.Maybe Prelude.Text)
listWorkerBlocksResponse_nextToken = Lens.lens (\ListWorkerBlocksResponse' {nextToken} -> nextToken) (\s@ListWorkerBlocksResponse' {} a -> s {nextToken = a} :: ListWorkerBlocksResponse)

-- | The number of assignments on the page in the filtered results list,
-- equivalent to the number of assignments returned by this call.
listWorkerBlocksResponse_numResults :: Lens.Lens' ListWorkerBlocksResponse (Prelude.Maybe Prelude.Int)
listWorkerBlocksResponse_numResults = Lens.lens (\ListWorkerBlocksResponse' {numResults} -> numResults) (\s@ListWorkerBlocksResponse' {} a -> s {numResults = a} :: ListWorkerBlocksResponse)

-- | The list of WorkerBlocks, containing the collection of Worker IDs and
-- reasons for blocking.
listWorkerBlocksResponse_workerBlocks :: Lens.Lens' ListWorkerBlocksResponse (Prelude.Maybe [WorkerBlock])
listWorkerBlocksResponse_workerBlocks = Lens.lens (\ListWorkerBlocksResponse' {workerBlocks} -> workerBlocks) (\s@ListWorkerBlocksResponse' {} a -> s {workerBlocks = a} :: ListWorkerBlocksResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ListWorkerBlocksResponse where
  rnf ListWorkerBlocksResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf numResults
      `Prelude.seq` Prelude.rnf workerBlocks
      `Prelude.seq` Prelude.rnf httpStatus