{-# 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.APIGateway.GetRestApis
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists the RestApis resources for your collection.
--
-- This operation returns paginated results.
module Amazonka.APIGateway.GetRestApis
  ( -- * Creating a Request
    GetRestApis (..),
    newGetRestApis,

    -- * Request Lenses
    getRestApis_limit,
    getRestApis_position,

    -- * Destructuring the Response
    GetRestApisResponse (..),
    newGetRestApisResponse,

    -- * Response Lenses
    getRestApisResponse_items,
    getRestApisResponse_position,
    getRestApisResponse_httpStatus,
  )
where

import Amazonka.APIGateway.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

-- | The GET request to list existing RestApis defined for your collection.
--
-- /See:/ 'newGetRestApis' smart constructor.
data GetRestApis = GetRestApis'
  { -- | The maximum number of returned results per page. The default value is 25
    -- and the maximum value is 500.
    limit :: Prelude.Maybe Prelude.Int,
    -- | The current pagination position in the paged result set.
    position :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetRestApis' 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:
--
-- 'limit', 'getRestApis_limit' - The maximum number of returned results per page. The default value is 25
-- and the maximum value is 500.
--
-- 'position', 'getRestApis_position' - The current pagination position in the paged result set.
newGetRestApis ::
  GetRestApis
newGetRestApis =
  GetRestApis'
    { limit = Prelude.Nothing,
      position = Prelude.Nothing
    }

-- | The maximum number of returned results per page. The default value is 25
-- and the maximum value is 500.
getRestApis_limit :: Lens.Lens' GetRestApis (Prelude.Maybe Prelude.Int)
getRestApis_limit = Lens.lens (\GetRestApis' {limit} -> limit) (\s@GetRestApis' {} a -> s {limit = a} :: GetRestApis)

-- | The current pagination position in the paged result set.
getRestApis_position :: Lens.Lens' GetRestApis (Prelude.Maybe Prelude.Text)
getRestApis_position = Lens.lens (\GetRestApis' {position} -> position) (\s@GetRestApis' {} a -> s {position = a} :: GetRestApis)

instance Core.AWSPager GetRestApis where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? getRestApisResponse_position
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? getRestApisResponse_items
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& getRestApis_position
          Lens..~ rs
          Lens.^? getRestApisResponse_position
          Prelude.. Lens._Just

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

instance Prelude.Hashable GetRestApis where
  hashWithSalt _salt GetRestApis' {..} =
    _salt
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` position

instance Prelude.NFData GetRestApis where
  rnf GetRestApis' {..} =
    Prelude.rnf limit
      `Prelude.seq` Prelude.rnf position

instance Data.ToHeaders GetRestApis where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "Accept"
              Data.=# ("application/json" :: Prelude.ByteString)
          ]
      )

instance Data.ToPath GetRestApis where
  toPath = Prelude.const "/restapis"

instance Data.ToQuery GetRestApis where
  toQuery GetRestApis' {..} =
    Prelude.mconcat
      ["limit" Data.=: limit, "position" Data.=: position]

-- | Contains references to your APIs and links that guide you in how to
-- interact with your collection. A collection offers a paginated view of
-- your APIs.
--
-- /See:/ 'newGetRestApisResponse' smart constructor.
data GetRestApisResponse = GetRestApisResponse'
  { -- | The current page of elements from this collection.
    items :: Prelude.Maybe [RestApi],
    position :: 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 'GetRestApisResponse' 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', 'getRestApisResponse_items' - The current page of elements from this collection.
--
-- 'position', 'getRestApisResponse_position' - Undocumented member.
--
-- 'httpStatus', 'getRestApisResponse_httpStatus' - The response's http status code.
newGetRestApisResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetRestApisResponse
newGetRestApisResponse pHttpStatus_ =
  GetRestApisResponse'
    { items = Prelude.Nothing,
      position = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The current page of elements from this collection.
getRestApisResponse_items :: Lens.Lens' GetRestApisResponse (Prelude.Maybe [RestApi])
getRestApisResponse_items = Lens.lens (\GetRestApisResponse' {items} -> items) (\s@GetRestApisResponse' {} a -> s {items = a} :: GetRestApisResponse) Prelude.. Lens.mapping Lens.coerced

-- | Undocumented member.
getRestApisResponse_position :: Lens.Lens' GetRestApisResponse (Prelude.Maybe Prelude.Text)
getRestApisResponse_position = Lens.lens (\GetRestApisResponse' {position} -> position) (\s@GetRestApisResponse' {} a -> s {position = a} :: GetRestApisResponse)

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

instance Prelude.NFData GetRestApisResponse where
  rnf GetRestApisResponse' {..} =
    Prelude.rnf items
      `Prelude.seq` Prelude.rnf position
      `Prelude.seq` Prelude.rnf httpStatus