{-# 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.ApiGatewayV2.GetModels
-- 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 Models for an API.
--
-- This operation returns paginated results.
module Amazonka.ApiGatewayV2.GetModels
  ( -- * Creating a Request
    GetModels (..),
    newGetModels,

    -- * Request Lenses
    getModels_maxResults,
    getModels_nextToken,
    getModels_apiId,

    -- * Destructuring the Response
    GetModelsResponse (..),
    newGetModelsResponse,

    -- * Response Lenses
    getModelsResponse_items,
    getModelsResponse_nextToken,
    getModelsResponse_httpStatus,
  )
where

import Amazonka.ApiGatewayV2.Types
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

-- | /See:/ 'newGetModels' smart constructor.
data GetModels = GetModels'
  { -- | The maximum number of elements to be returned for this resource.
    maxResults :: Prelude.Maybe Prelude.Text,
    -- | The next page of elements from this collection. Not valid for the last
    -- element of the collection.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The API identifier.
    apiId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetModels' 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', 'getModels_maxResults' - The maximum number of elements to be returned for this resource.
--
-- 'nextToken', 'getModels_nextToken' - The next page of elements from this collection. Not valid for the last
-- element of the collection.
--
-- 'apiId', 'getModels_apiId' - The API identifier.
newGetModels ::
  -- | 'apiId'
  Prelude.Text ->
  GetModels
newGetModels pApiId_ =
  GetModels'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      apiId = pApiId_
    }

-- | The maximum number of elements to be returned for this resource.
getModels_maxResults :: Lens.Lens' GetModels (Prelude.Maybe Prelude.Text)
getModels_maxResults = Lens.lens (\GetModels' {maxResults} -> maxResults) (\s@GetModels' {} a -> s {maxResults = a} :: GetModels)

-- | The next page of elements from this collection. Not valid for the last
-- element of the collection.
getModels_nextToken :: Lens.Lens' GetModels (Prelude.Maybe Prelude.Text)
getModels_nextToken = Lens.lens (\GetModels' {nextToken} -> nextToken) (\s@GetModels' {} a -> s {nextToken = a} :: GetModels)

-- | The API identifier.
getModels_apiId :: Lens.Lens' GetModels Prelude.Text
getModels_apiId = Lens.lens (\GetModels' {apiId} -> apiId) (\s@GetModels' {} a -> s {apiId = a} :: GetModels)

instance Core.AWSPager GetModels where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? getModelsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? getModelsResponse_items
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& getModels_nextToken
          Lens..~ rs
          Lens.^? getModelsResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

instance Data.ToPath GetModels where
  toPath GetModels' {..} =
    Prelude.mconcat
      ["/v2/apis/", Data.toBS apiId, "/models"]

instance Data.ToQuery GetModels where
  toQuery GetModels' {..} =
    Prelude.mconcat
      [ "maxResults" Data.=: maxResults,
        "nextToken" Data.=: nextToken
      ]

-- | /See:/ 'newGetModelsResponse' smart constructor.
data GetModelsResponse = GetModelsResponse'
  { -- | The elements from this collection.
    items :: Prelude.Maybe [Model],
    -- | The next page of elements from this collection. Not valid for the last
    -- element of the collection.
    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 'GetModelsResponse' 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:
--
-- 'items', 'getModelsResponse_items' - The elements from this collection.
--
-- 'nextToken', 'getModelsResponse_nextToken' - The next page of elements from this collection. Not valid for the last
-- element of the collection.
--
-- 'httpStatus', 'getModelsResponse_httpStatus' - The response's http status code.
newGetModelsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetModelsResponse
newGetModelsResponse pHttpStatus_ =
  GetModelsResponse'
    { items = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The elements from this collection.
getModelsResponse_items :: Lens.Lens' GetModelsResponse (Prelude.Maybe [Model])
getModelsResponse_items = Lens.lens (\GetModelsResponse' {items} -> items) (\s@GetModelsResponse' {} a -> s {items = a} :: GetModelsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The next page of elements from this collection. Not valid for the last
-- element of the collection.
getModelsResponse_nextToken :: Lens.Lens' GetModelsResponse (Prelude.Maybe Prelude.Text)
getModelsResponse_nextToken = Lens.lens (\GetModelsResponse' {nextToken} -> nextToken) (\s@GetModelsResponse' {} a -> s {nextToken = a} :: GetModelsResponse)

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

instance Prelude.NFData GetModelsResponse where
  rnf GetModelsResponse' {..} =
    Prelude.rnf items
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus