{-# 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.Textract.GetDocumentTextDetection
-- 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 the results for an Amazon Textract asynchronous operation that
-- detects text in a document. Amazon Textract can detect lines of text and
-- the words that make up a line of text.
--
-- You start asynchronous text detection by calling
-- StartDocumentTextDetection, which returns a job identifier (@JobId@).
-- When the text detection operation finishes, Amazon Textract publishes a
-- completion status to the Amazon Simple Notification Service (Amazon SNS)
-- topic that\'s registered in the initial call to
-- @StartDocumentTextDetection@. To get the results of the text-detection
-- operation, first check that the status value published to the Amazon SNS
-- topic is @SUCCEEDED@. If so, call @GetDocumentTextDetection@, and pass
-- the job identifier (@JobId@) from the initial call to
-- @StartDocumentTextDetection@.
--
-- @GetDocumentTextDetection@ returns an array of Block objects.
--
-- Each document page has as an associated @Block@ of type PAGE. Each PAGE
-- @Block@ object is the parent of LINE @Block@ objects that represent the
-- lines of detected text on a page. A LINE @Block@ object is a parent for
-- each word that makes up the line. Words are represented by @Block@
-- objects of type WORD.
--
-- Use the MaxResults parameter to limit the number of blocks that are
-- returned. If there are more results than specified in @MaxResults@, the
-- value of @NextToken@ in the operation response contains a pagination
-- token for getting the next set of results. To get the next page of
-- results, call @GetDocumentTextDetection@, and populate the @NextToken@
-- request parameter with the token value that\'s returned from the
-- previous call to @GetDocumentTextDetection@.
--
-- For more information, see
-- <https://docs.aws.amazon.com/textract/latest/dg/how-it-works-detecting.html Document Text Detection>.
module Amazonka.Textract.GetDocumentTextDetection
  ( -- * Creating a Request
    GetDocumentTextDetection (..),
    newGetDocumentTextDetection,

    -- * Request Lenses
    getDocumentTextDetection_maxResults,
    getDocumentTextDetection_nextToken,
    getDocumentTextDetection_jobId,

    -- * Destructuring the Response
    GetDocumentTextDetectionResponse (..),
    newGetDocumentTextDetectionResponse,

    -- * Response Lenses
    getDocumentTextDetectionResponse_blocks,
    getDocumentTextDetectionResponse_detectDocumentTextModelVersion,
    getDocumentTextDetectionResponse_documentMetadata,
    getDocumentTextDetectionResponse_jobStatus,
    getDocumentTextDetectionResponse_nextToken,
    getDocumentTextDetectionResponse_statusMessage,
    getDocumentTextDetectionResponse_warnings,
    getDocumentTextDetectionResponse_httpStatus,
  )
where

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

-- | /See:/ 'newGetDocumentTextDetection' smart constructor.
data GetDocumentTextDetection = GetDocumentTextDetection'
  { -- | The maximum number of results to return per paginated call. The largest
    -- value you can specify is 1,000. If you specify a value greater than
    -- 1,000, a maximum of 1,000 results is returned. The default value is
    -- 1,000.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | If the previous response was incomplete (because there are more blocks
    -- to retrieve), Amazon Textract returns a pagination token in the
    -- response. You can use this pagination token to retrieve the next set of
    -- blocks.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | A unique identifier for the text detection job. The @JobId@ is returned
    -- from @StartDocumentTextDetection@. A @JobId@ value is only valid for 7
    -- days.
    jobId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetDocumentTextDetection' 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', 'getDocumentTextDetection_maxResults' - The maximum number of results to return per paginated call. The largest
-- value you can specify is 1,000. If you specify a value greater than
-- 1,000, a maximum of 1,000 results is returned. The default value is
-- 1,000.
--
-- 'nextToken', 'getDocumentTextDetection_nextToken' - If the previous response was incomplete (because there are more blocks
-- to retrieve), Amazon Textract returns a pagination token in the
-- response. You can use this pagination token to retrieve the next set of
-- blocks.
--
-- 'jobId', 'getDocumentTextDetection_jobId' - A unique identifier for the text detection job. The @JobId@ is returned
-- from @StartDocumentTextDetection@. A @JobId@ value is only valid for 7
-- days.
newGetDocumentTextDetection ::
  -- | 'jobId'
  Prelude.Text ->
  GetDocumentTextDetection
newGetDocumentTextDetection pJobId_ =
  GetDocumentTextDetection'
    { maxResults =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      jobId = pJobId_
    }

-- | The maximum number of results to return per paginated call. The largest
-- value you can specify is 1,000. If you specify a value greater than
-- 1,000, a maximum of 1,000 results is returned. The default value is
-- 1,000.
getDocumentTextDetection_maxResults :: Lens.Lens' GetDocumentTextDetection (Prelude.Maybe Prelude.Natural)
getDocumentTextDetection_maxResults = Lens.lens (\GetDocumentTextDetection' {maxResults} -> maxResults) (\s@GetDocumentTextDetection' {} a -> s {maxResults = a} :: GetDocumentTextDetection)

-- | If the previous response was incomplete (because there are more blocks
-- to retrieve), Amazon Textract returns a pagination token in the
-- response. You can use this pagination token to retrieve the next set of
-- blocks.
getDocumentTextDetection_nextToken :: Lens.Lens' GetDocumentTextDetection (Prelude.Maybe Prelude.Text)
getDocumentTextDetection_nextToken = Lens.lens (\GetDocumentTextDetection' {nextToken} -> nextToken) (\s@GetDocumentTextDetection' {} a -> s {nextToken = a} :: GetDocumentTextDetection)

-- | A unique identifier for the text detection job. The @JobId@ is returned
-- from @StartDocumentTextDetection@. A @JobId@ value is only valid for 7
-- days.
getDocumentTextDetection_jobId :: Lens.Lens' GetDocumentTextDetection Prelude.Text
getDocumentTextDetection_jobId = Lens.lens (\GetDocumentTextDetection' {jobId} -> jobId) (\s@GetDocumentTextDetection' {} a -> s {jobId = a} :: GetDocumentTextDetection)

instance Core.AWSRequest GetDocumentTextDetection where
  type
    AWSResponse GetDocumentTextDetection =
      GetDocumentTextDetectionResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          GetDocumentTextDetectionResponse'
            Prelude.<$> (x Data..?> "Blocks" Core..!@ Prelude.mempty)
            Prelude.<*> (x Data..?> "DetectDocumentTextModelVersion")
            Prelude.<*> (x Data..?> "DocumentMetadata")
            Prelude.<*> (x Data..?> "JobStatus")
            Prelude.<*> (x Data..?> "NextToken")
            Prelude.<*> (x Data..?> "StatusMessage")
            Prelude.<*> (x Data..?> "Warnings" Core..!@ Prelude.mempty)
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

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

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

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

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

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

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

-- | /See:/ 'newGetDocumentTextDetectionResponse' smart constructor.
data GetDocumentTextDetectionResponse = GetDocumentTextDetectionResponse'
  { -- | The results of the text-detection operation.
    blocks :: Prelude.Maybe [Block],
    detectDocumentTextModelVersion :: Prelude.Maybe Prelude.Text,
    -- | Information about a document that Amazon Textract processed.
    -- @DocumentMetadata@ is returned in every page of paginated responses from
    -- an Amazon Textract video operation.
    documentMetadata :: Prelude.Maybe DocumentMetadata,
    -- | The current status of the text detection job.
    jobStatus :: Prelude.Maybe JobStatus,
    -- | If the response is truncated, Amazon Textract returns this token. You
    -- can use this token in the subsequent request to retrieve the next set of
    -- text-detection results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | Returns if the detection job could not be completed. Contains
    -- explanation for what error occured.
    statusMessage :: Prelude.Maybe Prelude.Text,
    -- | A list of warnings that occurred during the text-detection operation for
    -- the document.
    warnings :: Prelude.Maybe [Warning],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetDocumentTextDetectionResponse' 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:
--
-- 'blocks', 'getDocumentTextDetectionResponse_blocks' - The results of the text-detection operation.
--
-- 'detectDocumentTextModelVersion', 'getDocumentTextDetectionResponse_detectDocumentTextModelVersion' -
--
-- 'documentMetadata', 'getDocumentTextDetectionResponse_documentMetadata' - Information about a document that Amazon Textract processed.
-- @DocumentMetadata@ is returned in every page of paginated responses from
-- an Amazon Textract video operation.
--
-- 'jobStatus', 'getDocumentTextDetectionResponse_jobStatus' - The current status of the text detection job.
--
-- 'nextToken', 'getDocumentTextDetectionResponse_nextToken' - If the response is truncated, Amazon Textract returns this token. You
-- can use this token in the subsequent request to retrieve the next set of
-- text-detection results.
--
-- 'statusMessage', 'getDocumentTextDetectionResponse_statusMessage' - Returns if the detection job could not be completed. Contains
-- explanation for what error occured.
--
-- 'warnings', 'getDocumentTextDetectionResponse_warnings' - A list of warnings that occurred during the text-detection operation for
-- the document.
--
-- 'httpStatus', 'getDocumentTextDetectionResponse_httpStatus' - The response's http status code.
newGetDocumentTextDetectionResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetDocumentTextDetectionResponse
newGetDocumentTextDetectionResponse pHttpStatus_ =
  GetDocumentTextDetectionResponse'
    { blocks =
        Prelude.Nothing,
      detectDocumentTextModelVersion =
        Prelude.Nothing,
      documentMetadata = Prelude.Nothing,
      jobStatus = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      statusMessage = Prelude.Nothing,
      warnings = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The results of the text-detection operation.
getDocumentTextDetectionResponse_blocks :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe [Block])
getDocumentTextDetectionResponse_blocks = Lens.lens (\GetDocumentTextDetectionResponse' {blocks} -> blocks) (\s@GetDocumentTextDetectionResponse' {} a -> s {blocks = a} :: GetDocumentTextDetectionResponse) Prelude.. Lens.mapping Lens.coerced

getDocumentTextDetectionResponse_detectDocumentTextModelVersion :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe Prelude.Text)
getDocumentTextDetectionResponse_detectDocumentTextModelVersion = Lens.lens (\GetDocumentTextDetectionResponse' {detectDocumentTextModelVersion} -> detectDocumentTextModelVersion) (\s@GetDocumentTextDetectionResponse' {} a -> s {detectDocumentTextModelVersion = a} :: GetDocumentTextDetectionResponse)

-- | Information about a document that Amazon Textract processed.
-- @DocumentMetadata@ is returned in every page of paginated responses from
-- an Amazon Textract video operation.
getDocumentTextDetectionResponse_documentMetadata :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe DocumentMetadata)
getDocumentTextDetectionResponse_documentMetadata = Lens.lens (\GetDocumentTextDetectionResponse' {documentMetadata} -> documentMetadata) (\s@GetDocumentTextDetectionResponse' {} a -> s {documentMetadata = a} :: GetDocumentTextDetectionResponse)

-- | The current status of the text detection job.
getDocumentTextDetectionResponse_jobStatus :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe JobStatus)
getDocumentTextDetectionResponse_jobStatus = Lens.lens (\GetDocumentTextDetectionResponse' {jobStatus} -> jobStatus) (\s@GetDocumentTextDetectionResponse' {} a -> s {jobStatus = a} :: GetDocumentTextDetectionResponse)

-- | If the response is truncated, Amazon Textract returns this token. You
-- can use this token in the subsequent request to retrieve the next set of
-- text-detection results.
getDocumentTextDetectionResponse_nextToken :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe Prelude.Text)
getDocumentTextDetectionResponse_nextToken = Lens.lens (\GetDocumentTextDetectionResponse' {nextToken} -> nextToken) (\s@GetDocumentTextDetectionResponse' {} a -> s {nextToken = a} :: GetDocumentTextDetectionResponse)

-- | Returns if the detection job could not be completed. Contains
-- explanation for what error occured.
getDocumentTextDetectionResponse_statusMessage :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe Prelude.Text)
getDocumentTextDetectionResponse_statusMessage = Lens.lens (\GetDocumentTextDetectionResponse' {statusMessage} -> statusMessage) (\s@GetDocumentTextDetectionResponse' {} a -> s {statusMessage = a} :: GetDocumentTextDetectionResponse)

-- | A list of warnings that occurred during the text-detection operation for
-- the document.
getDocumentTextDetectionResponse_warnings :: Lens.Lens' GetDocumentTextDetectionResponse (Prelude.Maybe [Warning])
getDocumentTextDetectionResponse_warnings = Lens.lens (\GetDocumentTextDetectionResponse' {warnings} -> warnings) (\s@GetDocumentTextDetectionResponse' {} a -> s {warnings = a} :: GetDocumentTextDetectionResponse) Prelude.. Lens.mapping Lens.coerced

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

instance
  Prelude.NFData
    GetDocumentTextDetectionResponse
  where
  rnf GetDocumentTextDetectionResponse' {..} =
    Prelude.rnf blocks
      `Prelude.seq` Prelude.rnf detectDocumentTextModelVersion
      `Prelude.seq` Prelude.rnf documentMetadata
      `Prelude.seq` Prelude.rnf jobStatus
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf statusMessage
      `Prelude.seq` Prelude.rnf warnings
      `Prelude.seq` Prelude.rnf httpStatus