{-# 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.Transcribe.ListLanguageModels
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Provides a list of custom language models that match the specified
-- criteria. If no criteria are specified, all custom language models are
-- returned.
--
-- To get detailed information about a specific custom language model, use
-- the operation.
module Amazonka.Transcribe.ListLanguageModels
  ( -- * Creating a Request
    ListLanguageModels (..),
    newListLanguageModels,

    -- * Request Lenses
    listLanguageModels_maxResults,
    listLanguageModels_nameContains,
    listLanguageModels_nextToken,
    listLanguageModels_statusEquals,

    -- * Destructuring the Response
    ListLanguageModelsResponse (..),
    newListLanguageModelsResponse,

    -- * Response Lenses
    listLanguageModelsResponse_models,
    listLanguageModelsResponse_nextToken,
    listLanguageModelsResponse_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.Transcribe.Types

-- | /See:/ 'newListLanguageModels' smart constructor.
data ListLanguageModels = ListLanguageModels'
  { -- | The maximum number of custom language models to return in each page of
    -- results. If there are fewer results than the value that you specify,
    -- only the actual results are returned. If you don\'t specify a value, a
    -- default of 5 is used.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | Returns only the custom language models that contain the specified
    -- string. The search is not case sensitive.
    nameContains :: Prelude.Maybe Prelude.Text,
    -- | If your @ListLanguageModels@ request returns more results than can be
    -- displayed, @NextToken@ is displayed in the response with an associated
    -- string. To get the next page of results, copy this string and repeat
    -- your request, including @NextToken@ with the value of the copied string.
    -- Repeat as needed to view all your results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | Returns only custom language models with the specified status. Language
    -- models are ordered by creation date, with the newest model first. If you
    -- don\'t include @StatusEquals@, all custom language models are returned.
    statusEquals :: Prelude.Maybe ModelStatus
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListLanguageModels' 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', 'listLanguageModels_maxResults' - The maximum number of custom language models to return in each page of
-- results. If there are fewer results than the value that you specify,
-- only the actual results are returned. If you don\'t specify a value, a
-- default of 5 is used.
--
-- 'nameContains', 'listLanguageModels_nameContains' - Returns only the custom language models that contain the specified
-- string. The search is not case sensitive.
--
-- 'nextToken', 'listLanguageModels_nextToken' - If your @ListLanguageModels@ request returns more results than can be
-- displayed, @NextToken@ is displayed in the response with an associated
-- string. To get the next page of results, copy this string and repeat
-- your request, including @NextToken@ with the value of the copied string.
-- Repeat as needed to view all your results.
--
-- 'statusEquals', 'listLanguageModels_statusEquals' - Returns only custom language models with the specified status. Language
-- models are ordered by creation date, with the newest model first. If you
-- don\'t include @StatusEquals@, all custom language models are returned.
newListLanguageModels ::
  ListLanguageModels
newListLanguageModels =
  ListLanguageModels'
    { maxResults = Prelude.Nothing,
      nameContains = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      statusEquals = Prelude.Nothing
    }

-- | The maximum number of custom language models to return in each page of
-- results. If there are fewer results than the value that you specify,
-- only the actual results are returned. If you don\'t specify a value, a
-- default of 5 is used.
listLanguageModels_maxResults :: Lens.Lens' ListLanguageModels (Prelude.Maybe Prelude.Natural)
listLanguageModels_maxResults = Lens.lens (\ListLanguageModels' {maxResults} -> maxResults) (\s@ListLanguageModels' {} a -> s {maxResults = a} :: ListLanguageModels)

-- | Returns only the custom language models that contain the specified
-- string. The search is not case sensitive.
listLanguageModels_nameContains :: Lens.Lens' ListLanguageModels (Prelude.Maybe Prelude.Text)
listLanguageModels_nameContains = Lens.lens (\ListLanguageModels' {nameContains} -> nameContains) (\s@ListLanguageModels' {} a -> s {nameContains = a} :: ListLanguageModels)

-- | If your @ListLanguageModels@ request returns more results than can be
-- displayed, @NextToken@ is displayed in the response with an associated
-- string. To get the next page of results, copy this string and repeat
-- your request, including @NextToken@ with the value of the copied string.
-- Repeat as needed to view all your results.
listLanguageModels_nextToken :: Lens.Lens' ListLanguageModels (Prelude.Maybe Prelude.Text)
listLanguageModels_nextToken = Lens.lens (\ListLanguageModels' {nextToken} -> nextToken) (\s@ListLanguageModels' {} a -> s {nextToken = a} :: ListLanguageModels)

-- | Returns only custom language models with the specified status. Language
-- models are ordered by creation date, with the newest model first. If you
-- don\'t include @StatusEquals@, all custom language models are returned.
listLanguageModels_statusEquals :: Lens.Lens' ListLanguageModels (Prelude.Maybe ModelStatus)
listLanguageModels_statusEquals = Lens.lens (\ListLanguageModels' {statusEquals} -> statusEquals) (\s@ListLanguageModels' {} a -> s {statusEquals = a} :: ListLanguageModels)

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

instance Prelude.Hashable ListLanguageModels where
  hashWithSalt _salt ListLanguageModels' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nameContains
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` statusEquals

instance Prelude.NFData ListLanguageModels where
  rnf ListLanguageModels' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nameContains
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf statusEquals

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

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

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

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

-- | /See:/ 'newListLanguageModelsResponse' smart constructor.
data ListLanguageModelsResponse = ListLanguageModelsResponse'
  { -- | Provides information about the custom language models that match the
    -- criteria specified in your request.
    models :: Prelude.Maybe [LanguageModel],
    -- | If @NextToken@ is present in your response, it indicates that not all
    -- results are displayed. To view the next set of results, copy the string
    -- associated with the @NextToken@ parameter in your results output, then
    -- run your request again including @NextToken@ with the value of the
    -- copied string. Repeat as needed to view all your results.
    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 'ListLanguageModelsResponse' 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:
--
-- 'models', 'listLanguageModelsResponse_models' - Provides information about the custom language models that match the
-- criteria specified in your request.
--
-- 'nextToken', 'listLanguageModelsResponse_nextToken' - If @NextToken@ is present in your response, it indicates that not all
-- results are displayed. To view the next set of results, copy the string
-- associated with the @NextToken@ parameter in your results output, then
-- run your request again including @NextToken@ with the value of the
-- copied string. Repeat as needed to view all your results.
--
-- 'httpStatus', 'listLanguageModelsResponse_httpStatus' - The response's http status code.
newListLanguageModelsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListLanguageModelsResponse
newListLanguageModelsResponse pHttpStatus_ =
  ListLanguageModelsResponse'
    { models =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Provides information about the custom language models that match the
-- criteria specified in your request.
listLanguageModelsResponse_models :: Lens.Lens' ListLanguageModelsResponse (Prelude.Maybe [LanguageModel])
listLanguageModelsResponse_models = Lens.lens (\ListLanguageModelsResponse' {models} -> models) (\s@ListLanguageModelsResponse' {} a -> s {models = a} :: ListLanguageModelsResponse) Prelude.. Lens.mapping Lens.coerced

-- | If @NextToken@ is present in your response, it indicates that not all
-- results are displayed. To view the next set of results, copy the string
-- associated with the @NextToken@ parameter in your results output, then
-- run your request again including @NextToken@ with the value of the
-- copied string. Repeat as needed to view all your results.
listLanguageModelsResponse_nextToken :: Lens.Lens' ListLanguageModelsResponse (Prelude.Maybe Prelude.Text)
listLanguageModelsResponse_nextToken = Lens.lens (\ListLanguageModelsResponse' {nextToken} -> nextToken) (\s@ListLanguageModelsResponse' {} a -> s {nextToken = a} :: ListLanguageModelsResponse)

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

instance Prelude.NFData ListLanguageModelsResponse where
  rnf ListLanguageModelsResponse' {..} =
    Prelude.rnf models
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus