{-# 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.AppMesh.ListRoutes
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns a list of existing routes in a service mesh.
--
-- This operation returns paginated results.
module Amazonka.AppMesh.ListRoutes
  ( -- * Creating a Request
    ListRoutes (..),
    newListRoutes,

    -- * Request Lenses
    listRoutes_limit,
    listRoutes_meshOwner,
    listRoutes_nextToken,
    listRoutes_meshName,
    listRoutes_virtualRouterName,

    -- * Destructuring the Response
    ListRoutesResponse (..),
    newListRoutesResponse,

    -- * Response Lenses
    listRoutesResponse_nextToken,
    listRoutesResponse_httpStatus,
    listRoutesResponse_routes,
  )
where

import Amazonka.AppMesh.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:/ 'newListRoutes' smart constructor.
data ListRoutes = ListRoutes'
  { -- | The maximum number of results returned by @ListRoutes@ in paginated
    -- output. When you use this parameter, @ListRoutes@ returns only @limit@
    -- results in a single page along with a @nextToken@ response element. You
    -- can see the remaining results of the initial request by sending another
    -- @ListRoutes@ request with the returned @nextToken@ value. This value can
    -- be between 1 and 100. If you don\'t use this parameter, @ListRoutes@
    -- returns up to 100 results and a @nextToken@ value if applicable.
    limit :: Prelude.Maybe Prelude.Natural,
    -- | The Amazon Web Services IAM account ID of the service mesh owner. If the
    -- account ID is not your own, then it\'s the ID of the account that shared
    -- the mesh with your account. For more information about mesh sharing, see
    -- <https://docs.aws.amazon.com/app-mesh/latest/userguide/sharing.html Working with shared meshes>.
    meshOwner :: Prelude.Maybe Prelude.Text,
    -- | The @nextToken@ value returned from a previous paginated @ListRoutes@
    -- request where @limit@ was used and the results exceeded the value of
    -- that parameter. Pagination continues from the end of the previous
    -- results that returned the @nextToken@ value.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The name of the service mesh to list routes in.
    meshName :: Prelude.Text,
    -- | The name of the virtual router to list routes in.
    virtualRouterName :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListRoutes' 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', 'listRoutes_limit' - The maximum number of results returned by @ListRoutes@ in paginated
-- output. When you use this parameter, @ListRoutes@ returns only @limit@
-- results in a single page along with a @nextToken@ response element. You
-- can see the remaining results of the initial request by sending another
-- @ListRoutes@ request with the returned @nextToken@ value. This value can
-- be between 1 and 100. If you don\'t use this parameter, @ListRoutes@
-- returns up to 100 results and a @nextToken@ value if applicable.
--
-- 'meshOwner', 'listRoutes_meshOwner' - The Amazon Web Services IAM account ID of the service mesh owner. If the
-- account ID is not your own, then it\'s the ID of the account that shared
-- the mesh with your account. For more information about mesh sharing, see
-- <https://docs.aws.amazon.com/app-mesh/latest/userguide/sharing.html Working with shared meshes>.
--
-- 'nextToken', 'listRoutes_nextToken' - The @nextToken@ value returned from a previous paginated @ListRoutes@
-- request where @limit@ was used and the results exceeded the value of
-- that parameter. Pagination continues from the end of the previous
-- results that returned the @nextToken@ value.
--
-- 'meshName', 'listRoutes_meshName' - The name of the service mesh to list routes in.
--
-- 'virtualRouterName', 'listRoutes_virtualRouterName' - The name of the virtual router to list routes in.
newListRoutes ::
  -- | 'meshName'
  Prelude.Text ->
  -- | 'virtualRouterName'
  Prelude.Text ->
  ListRoutes
newListRoutes pMeshName_ pVirtualRouterName_ =
  ListRoutes'
    { limit = Prelude.Nothing,
      meshOwner = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      meshName = pMeshName_,
      virtualRouterName = pVirtualRouterName_
    }

-- | The maximum number of results returned by @ListRoutes@ in paginated
-- output. When you use this parameter, @ListRoutes@ returns only @limit@
-- results in a single page along with a @nextToken@ response element. You
-- can see the remaining results of the initial request by sending another
-- @ListRoutes@ request with the returned @nextToken@ value. This value can
-- be between 1 and 100. If you don\'t use this parameter, @ListRoutes@
-- returns up to 100 results and a @nextToken@ value if applicable.
listRoutes_limit :: Lens.Lens' ListRoutes (Prelude.Maybe Prelude.Natural)
listRoutes_limit = Lens.lens (\ListRoutes' {limit} -> limit) (\s@ListRoutes' {} a -> s {limit = a} :: ListRoutes)

-- | The Amazon Web Services IAM account ID of the service mesh owner. If the
-- account ID is not your own, then it\'s the ID of the account that shared
-- the mesh with your account. For more information about mesh sharing, see
-- <https://docs.aws.amazon.com/app-mesh/latest/userguide/sharing.html Working with shared meshes>.
listRoutes_meshOwner :: Lens.Lens' ListRoutes (Prelude.Maybe Prelude.Text)
listRoutes_meshOwner = Lens.lens (\ListRoutes' {meshOwner} -> meshOwner) (\s@ListRoutes' {} a -> s {meshOwner = a} :: ListRoutes)

-- | The @nextToken@ value returned from a previous paginated @ListRoutes@
-- request where @limit@ was used and the results exceeded the value of
-- that parameter. Pagination continues from the end of the previous
-- results that returned the @nextToken@ value.
listRoutes_nextToken :: Lens.Lens' ListRoutes (Prelude.Maybe Prelude.Text)
listRoutes_nextToken = Lens.lens (\ListRoutes' {nextToken} -> nextToken) (\s@ListRoutes' {} a -> s {nextToken = a} :: ListRoutes)

-- | The name of the service mesh to list routes in.
listRoutes_meshName :: Lens.Lens' ListRoutes Prelude.Text
listRoutes_meshName = Lens.lens (\ListRoutes' {meshName} -> meshName) (\s@ListRoutes' {} a -> s {meshName = a} :: ListRoutes)

-- | The name of the virtual router to list routes in.
listRoutes_virtualRouterName :: Lens.Lens' ListRoutes Prelude.Text
listRoutes_virtualRouterName = Lens.lens (\ListRoutes' {virtualRouterName} -> virtualRouterName) (\s@ListRoutes' {} a -> s {virtualRouterName = a} :: ListRoutes)

instance Core.AWSPager ListRoutes where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listRoutesResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop (rs Lens.^. listRoutesResponse_routes) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listRoutes_nextToken
          Lens..~ rs
          Lens.^? listRoutesResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListRoutes where
  hashWithSalt _salt ListRoutes' {..} =
    _salt
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` meshOwner
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` meshName
      `Prelude.hashWithSalt` virtualRouterName

instance Prelude.NFData ListRoutes where
  rnf ListRoutes' {..} =
    Prelude.rnf limit
      `Prelude.seq` Prelude.rnf meshOwner
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf meshName
      `Prelude.seq` Prelude.rnf virtualRouterName

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

instance Data.ToPath ListRoutes where
  toPath ListRoutes' {..} =
    Prelude.mconcat
      [ "/v20190125/meshes/",
        Data.toBS meshName,
        "/virtualRouter/",
        Data.toBS virtualRouterName,
        "/routes"
      ]

instance Data.ToQuery ListRoutes where
  toQuery ListRoutes' {..} =
    Prelude.mconcat
      [ "limit" Data.=: limit,
        "meshOwner" Data.=: meshOwner,
        "nextToken" Data.=: nextToken
      ]

-- |
--
-- /See:/ 'newListRoutesResponse' smart constructor.
data ListRoutesResponse = ListRoutesResponse'
  { -- | The @nextToken@ value to include in a future @ListRoutes@ request. When
    -- the results of a @ListRoutes@ request exceed @limit@, you can use this
    -- value to retrieve the next page of results. This value is @null@ when
    -- there are no more results to return.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | The list of existing routes for the specified service mesh and virtual
    -- router.
    routes :: [RouteRef]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListRoutesResponse' 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:
--
-- 'nextToken', 'listRoutesResponse_nextToken' - The @nextToken@ value to include in a future @ListRoutes@ request. When
-- the results of a @ListRoutes@ request exceed @limit@, you can use this
-- value to retrieve the next page of results. This value is @null@ when
-- there are no more results to return.
--
-- 'httpStatus', 'listRoutesResponse_httpStatus' - The response's http status code.
--
-- 'routes', 'listRoutesResponse_routes' - The list of existing routes for the specified service mesh and virtual
-- router.
newListRoutesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListRoutesResponse
newListRoutesResponse pHttpStatus_ =
  ListRoutesResponse'
    { nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_,
      routes = Prelude.mempty
    }

-- | The @nextToken@ value to include in a future @ListRoutes@ request. When
-- the results of a @ListRoutes@ request exceed @limit@, you can use this
-- value to retrieve the next page of results. This value is @null@ when
-- there are no more results to return.
listRoutesResponse_nextToken :: Lens.Lens' ListRoutesResponse (Prelude.Maybe Prelude.Text)
listRoutesResponse_nextToken = Lens.lens (\ListRoutesResponse' {nextToken} -> nextToken) (\s@ListRoutesResponse' {} a -> s {nextToken = a} :: ListRoutesResponse)

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

-- | The list of existing routes for the specified service mesh and virtual
-- router.
listRoutesResponse_routes :: Lens.Lens' ListRoutesResponse [RouteRef]
listRoutesResponse_routes = Lens.lens (\ListRoutesResponse' {routes} -> routes) (\s@ListRoutesResponse' {} a -> s {routes = a} :: ListRoutesResponse) Prelude.. Lens.coerced

instance Prelude.NFData ListRoutesResponse where
  rnf ListRoutesResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf routes