{-# 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.Amplify.ListBranches
-- 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 branches of an Amplify app.
--
-- This operation returns paginated results.
module Amazonka.Amplify.ListBranches
  ( -- * Creating a Request
    ListBranches (..),
    newListBranches,

    -- * Request Lenses
    listBranches_maxResults,
    listBranches_nextToken,
    listBranches_appId,

    -- * Destructuring the Response
    ListBranchesResponse (..),
    newListBranchesResponse,

    -- * Response Lenses
    listBranchesResponse_nextToken,
    listBranchesResponse_httpStatus,
    listBranchesResponse_branches,
  )
where

import Amazonka.Amplify.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 request structure for the list branches request.
--
-- /See:/ 'newListBranches' smart constructor.
data ListBranches = ListBranches'
  { -- | The maximum number of records to list in a single response.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | A pagination token. Set to null to start listing branches from the
    -- start. If a non-null pagination token is returned in a result, pass its
    -- value in here to list more branches.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The unique ID for an Amplify app.
    appId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListBranches' 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', 'listBranches_maxResults' - The maximum number of records to list in a single response.
--
-- 'nextToken', 'listBranches_nextToken' - A pagination token. Set to null to start listing branches from the
-- start. If a non-null pagination token is returned in a result, pass its
-- value in here to list more branches.
--
-- 'appId', 'listBranches_appId' - The unique ID for an Amplify app.
newListBranches ::
  -- | 'appId'
  Prelude.Text ->
  ListBranches
newListBranches pAppId_ =
  ListBranches'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      appId = pAppId_
    }

-- | The maximum number of records to list in a single response.
listBranches_maxResults :: Lens.Lens' ListBranches (Prelude.Maybe Prelude.Natural)
listBranches_maxResults = Lens.lens (\ListBranches' {maxResults} -> maxResults) (\s@ListBranches' {} a -> s {maxResults = a} :: ListBranches)

-- | A pagination token. Set to null to start listing branches from the
-- start. If a non-null pagination token is returned in a result, pass its
-- value in here to list more branches.
listBranches_nextToken :: Lens.Lens' ListBranches (Prelude.Maybe Prelude.Text)
listBranches_nextToken = Lens.lens (\ListBranches' {nextToken} -> nextToken) (\s@ListBranches' {} a -> s {nextToken = a} :: ListBranches)

-- | The unique ID for an Amplify app.
listBranches_appId :: Lens.Lens' ListBranches Prelude.Text
listBranches_appId = Lens.lens (\ListBranches' {appId} -> appId) (\s@ListBranches' {} a -> s {appId = a} :: ListBranches)

instance Core.AWSPager ListBranches where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listBranchesResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        (rs Lens.^. listBranchesResponse_branches) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listBranches_nextToken
          Lens..~ rs
          Lens.^? listBranchesResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListBranches where
  hashWithSalt _salt ListBranches' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` appId

instance Prelude.NFData ListBranches where
  rnf ListBranches' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf appId

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

instance Data.ToPath ListBranches where
  toPath ListBranches' {..} =
    Prelude.mconcat
      ["/apps/", Data.toBS appId, "/branches"]

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

-- | The result structure for the list branches request.
--
-- /See:/ 'newListBranchesResponse' smart constructor.
data ListBranchesResponse = ListBranchesResponse'
  { -- | A pagination token. If a non-null pagination token is returned in a
    -- result, pass its value in another request to retrieve more entries.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | A list of branches for an Amplify app.
    branches :: [Branch]
  }
  deriving (Prelude.Eq, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListBranchesResponse' 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', 'listBranchesResponse_nextToken' - A pagination token. If a non-null pagination token is returned in a
-- result, pass its value in another request to retrieve more entries.
--
-- 'httpStatus', 'listBranchesResponse_httpStatus' - The response's http status code.
--
-- 'branches', 'listBranchesResponse_branches' - A list of branches for an Amplify app.
newListBranchesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListBranchesResponse
newListBranchesResponse pHttpStatus_ =
  ListBranchesResponse'
    { nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_,
      branches = Prelude.mempty
    }

-- | A pagination token. If a non-null pagination token is returned in a
-- result, pass its value in another request to retrieve more entries.
listBranchesResponse_nextToken :: Lens.Lens' ListBranchesResponse (Prelude.Maybe Prelude.Text)
listBranchesResponse_nextToken = Lens.lens (\ListBranchesResponse' {nextToken} -> nextToken) (\s@ListBranchesResponse' {} a -> s {nextToken = a} :: ListBranchesResponse)

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

-- | A list of branches for an Amplify app.
listBranchesResponse_branches :: Lens.Lens' ListBranchesResponse [Branch]
listBranchesResponse_branches = Lens.lens (\ListBranchesResponse' {branches} -> branches) (\s@ListBranchesResponse' {} a -> s {branches = a} :: ListBranchesResponse) Prelude.. Lens.coerced

instance Prelude.NFData ListBranchesResponse where
  rnf ListBranchesResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf branches