{-# 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.GetResources
-- 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 information about a collection of Resource resources.
--
-- This operation returns paginated results.
module Amazonka.APIGateway.GetResources
  ( -- * Creating a Request
    GetResources (..),
    newGetResources,

    -- * Request Lenses
    getResources_embed,
    getResources_limit,
    getResources_position,
    getResources_restApiId,

    -- * Destructuring the Response
    GetResourcesResponse (..),
    newGetResourcesResponse,

    -- * Response Lenses
    getResourcesResponse_items,
    getResourcesResponse_position,
    getResourcesResponse_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

-- | Request to list information about a collection of resources.
--
-- /See:/ 'newGetResources' smart constructor.
data GetResources = GetResources'
  { -- | A query parameter used to retrieve the specified resources embedded in
    -- the returned Resources resource in the response. This @embed@ parameter
    -- value is a list of comma-separated strings. Currently, the request
    -- supports only retrieval of the embedded Method resources this way. The
    -- query parameter value must be a single-valued list and contain the
    -- @\"methods\"@ string. For example,
    -- @GET \/restapis\/{restapi_id}\/resources?embed=methods@.
    embed :: Prelude.Maybe [Prelude.Text],
    -- | 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,
    -- | The string identifier of the associated RestApi.
    restApiId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetResources' 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:
--
-- 'embed', 'getResources_embed' - A query parameter used to retrieve the specified resources embedded in
-- the returned Resources resource in the response. This @embed@ parameter
-- value is a list of comma-separated strings. Currently, the request
-- supports only retrieval of the embedded Method resources this way. The
-- query parameter value must be a single-valued list and contain the
-- @\"methods\"@ string. For example,
-- @GET \/restapis\/{restapi_id}\/resources?embed=methods@.
--
-- 'limit', 'getResources_limit' - The maximum number of returned results per page. The default value is 25
-- and the maximum value is 500.
--
-- 'position', 'getResources_position' - The current pagination position in the paged result set.
--
-- 'restApiId', 'getResources_restApiId' - The string identifier of the associated RestApi.
newGetResources ::
  -- | 'restApiId'
  Prelude.Text ->
  GetResources
newGetResources pRestApiId_ =
  GetResources'
    { embed = Prelude.Nothing,
      limit = Prelude.Nothing,
      position = Prelude.Nothing,
      restApiId = pRestApiId_
    }

-- | A query parameter used to retrieve the specified resources embedded in
-- the returned Resources resource in the response. This @embed@ parameter
-- value is a list of comma-separated strings. Currently, the request
-- supports only retrieval of the embedded Method resources this way. The
-- query parameter value must be a single-valued list and contain the
-- @\"methods\"@ string. For example,
-- @GET \/restapis\/{restapi_id}\/resources?embed=methods@.
getResources_embed :: Lens.Lens' GetResources (Prelude.Maybe [Prelude.Text])
getResources_embed = Lens.lens (\GetResources' {embed} -> embed) (\s@GetResources' {} a -> s {embed = a} :: GetResources) Prelude.. Lens.mapping Lens.coerced

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

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

-- | The string identifier of the associated RestApi.
getResources_restApiId :: Lens.Lens' GetResources Prelude.Text
getResources_restApiId = Lens.lens (\GetResources' {restApiId} -> restApiId) (\s@GetResources' {} a -> s {restApiId = a} :: GetResources)

instance Core.AWSPager GetResources where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? getResourcesResponse_position
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? getResourcesResponse_items
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& getResources_position
          Lens..~ rs
          Lens.^? getResourcesResponse_position
          Prelude.. Lens._Just

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

instance Prelude.Hashable GetResources where
  hashWithSalt _salt GetResources' {..} =
    _salt
      `Prelude.hashWithSalt` embed
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` position
      `Prelude.hashWithSalt` restApiId

instance Prelude.NFData GetResources where
  rnf GetResources' {..} =
    Prelude.rnf embed
      `Prelude.seq` Prelude.rnf limit
      `Prelude.seq` Prelude.rnf position
      `Prelude.seq` Prelude.rnf restApiId

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

instance Data.ToPath GetResources where
  toPath GetResources' {..} =
    Prelude.mconcat
      ["/restapis/", Data.toBS restApiId, "/resources"]

instance Data.ToQuery GetResources where
  toQuery GetResources' {..} =
    Prelude.mconcat
      [ "embed"
          Data.=: Data.toQuery
            (Data.toQueryList "member" Prelude.<$> embed),
        "limit" Data.=: limit,
        "position" Data.=: position
      ]

-- | Represents a collection of Resource resources.
--
-- /See:/ 'newGetResourcesResponse' smart constructor.
data GetResourcesResponse = GetResourcesResponse'
  { -- | The current page of elements from this collection.
    items :: Prelude.Maybe [Resource],
    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 'GetResourcesResponse' 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', 'getResourcesResponse_items' - The current page of elements from this collection.
--
-- 'position', 'getResourcesResponse_position' - Undocumented member.
--
-- 'httpStatus', 'getResourcesResponse_httpStatus' - The response's http status code.
newGetResourcesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetResourcesResponse
newGetResourcesResponse pHttpStatus_ =
  GetResourcesResponse'
    { items = Prelude.Nothing,
      position = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

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

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

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

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