{-# 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.ServerlessApplicationRepository.GetApplicationPolicy
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves the policy for the application.
module Amazonka.ServerlessApplicationRepository.GetApplicationPolicy
  ( -- * Creating a Request
    GetApplicationPolicy (..),
    newGetApplicationPolicy,

    -- * Request Lenses
    getApplicationPolicy_applicationId,

    -- * Destructuring the Response
    GetApplicationPolicyResponse (..),
    newGetApplicationPolicyResponse,

    -- * Response Lenses
    getApplicationPolicyResponse_statements,
    getApplicationPolicyResponse_httpStatus,
  )
where

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
import Amazonka.ServerlessApplicationRepository.Types

-- | /See:/ 'newGetApplicationPolicy' smart constructor.
data GetApplicationPolicy = GetApplicationPolicy'
  { -- | The Amazon Resource Name (ARN) of the application.
    applicationId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetApplicationPolicy' 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:
--
-- 'applicationId', 'getApplicationPolicy_applicationId' - The Amazon Resource Name (ARN) of the application.
newGetApplicationPolicy ::
  -- | 'applicationId'
  Prelude.Text ->
  GetApplicationPolicy
newGetApplicationPolicy pApplicationId_ =
  GetApplicationPolicy'
    { applicationId =
        pApplicationId_
    }

-- | The Amazon Resource Name (ARN) of the application.
getApplicationPolicy_applicationId :: Lens.Lens' GetApplicationPolicy Prelude.Text
getApplicationPolicy_applicationId = Lens.lens (\GetApplicationPolicy' {applicationId} -> applicationId) (\s@GetApplicationPolicy' {} a -> s {applicationId = a} :: GetApplicationPolicy)

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

instance Prelude.Hashable GetApplicationPolicy where
  hashWithSalt _salt GetApplicationPolicy' {..} =
    _salt `Prelude.hashWithSalt` applicationId

instance Prelude.NFData GetApplicationPolicy where
  rnf GetApplicationPolicy' {..} =
    Prelude.rnf applicationId

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

instance Data.ToPath GetApplicationPolicy where
  toPath GetApplicationPolicy' {..} =
    Prelude.mconcat
      [ "/applications/",
        Data.toBS applicationId,
        "/policy"
      ]

instance Data.ToQuery GetApplicationPolicy where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newGetApplicationPolicyResponse' smart constructor.
data GetApplicationPolicyResponse = GetApplicationPolicyResponse'
  { -- | An array of policy statements applied to the application.
    statements :: Prelude.Maybe [ApplicationPolicyStatement],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetApplicationPolicyResponse' 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:
--
-- 'statements', 'getApplicationPolicyResponse_statements' - An array of policy statements applied to the application.
--
-- 'httpStatus', 'getApplicationPolicyResponse_httpStatus' - The response's http status code.
newGetApplicationPolicyResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetApplicationPolicyResponse
newGetApplicationPolicyResponse pHttpStatus_ =
  GetApplicationPolicyResponse'
    { statements =
        Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | An array of policy statements applied to the application.
getApplicationPolicyResponse_statements :: Lens.Lens' GetApplicationPolicyResponse (Prelude.Maybe [ApplicationPolicyStatement])
getApplicationPolicyResponse_statements = Lens.lens (\GetApplicationPolicyResponse' {statements} -> statements) (\s@GetApplicationPolicyResponse' {} a -> s {statements = a} :: GetApplicationPolicyResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData GetApplicationPolicyResponse where
  rnf GetApplicationPolicyResponse' {..} =
    Prelude.rnf statements
      `Prelude.seq` Prelude.rnf httpStatus