{-# 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.SSMContacts.ListContacts
-- 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 all contacts and escalation plans in Incident Manager.
--
-- This operation returns paginated results.
module Amazonka.SSMContacts.ListContacts
  ( -- * Creating a Request
    ListContacts (..),
    newListContacts,

    -- * Request Lenses
    listContacts_aliasPrefix,
    listContacts_maxResults,
    listContacts_nextToken,
    listContacts_type,

    -- * Destructuring the Response
    ListContactsResponse (..),
    newListContactsResponse,

    -- * Response Lenses
    listContactsResponse_contacts,
    listContactsResponse_nextToken,
    listContactsResponse_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.SSMContacts.Types

-- | /See:/ 'newListContacts' smart constructor.
data ListContacts = ListContacts'
  { -- | Used to list only contacts who\'s aliases start with the specified
    -- prefix.
    aliasPrefix :: Prelude.Maybe Prelude.Text,
    -- | The maximum number of contacts and escalation plans per page of results.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The pagination token to continue to the next page of results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The type of contact. A contact is type @PERSONAL@ and an escalation plan
    -- is type @ESCALATION@.
    type' :: Prelude.Maybe ContactType
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListContacts' 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:
--
-- 'aliasPrefix', 'listContacts_aliasPrefix' - Used to list only contacts who\'s aliases start with the specified
-- prefix.
--
-- 'maxResults', 'listContacts_maxResults' - The maximum number of contacts and escalation plans per page of results.
--
-- 'nextToken', 'listContacts_nextToken' - The pagination token to continue to the next page of results.
--
-- 'type'', 'listContacts_type' - The type of contact. A contact is type @PERSONAL@ and an escalation plan
-- is type @ESCALATION@.
newListContacts ::
  ListContacts
newListContacts =
  ListContacts'
    { aliasPrefix = Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      type' = Prelude.Nothing
    }

-- | Used to list only contacts who\'s aliases start with the specified
-- prefix.
listContacts_aliasPrefix :: Lens.Lens' ListContacts (Prelude.Maybe Prelude.Text)
listContacts_aliasPrefix = Lens.lens (\ListContacts' {aliasPrefix} -> aliasPrefix) (\s@ListContacts' {} a -> s {aliasPrefix = a} :: ListContacts)

-- | The maximum number of contacts and escalation plans per page of results.
listContacts_maxResults :: Lens.Lens' ListContacts (Prelude.Maybe Prelude.Natural)
listContacts_maxResults = Lens.lens (\ListContacts' {maxResults} -> maxResults) (\s@ListContacts' {} a -> s {maxResults = a} :: ListContacts)

-- | The pagination token to continue to the next page of results.
listContacts_nextToken :: Lens.Lens' ListContacts (Prelude.Maybe Prelude.Text)
listContacts_nextToken = Lens.lens (\ListContacts' {nextToken} -> nextToken) (\s@ListContacts' {} a -> s {nextToken = a} :: ListContacts)

-- | The type of contact. A contact is type @PERSONAL@ and an escalation plan
-- is type @ESCALATION@.
listContacts_type :: Lens.Lens' ListContacts (Prelude.Maybe ContactType)
listContacts_type = Lens.lens (\ListContacts' {type'} -> type') (\s@ListContacts' {} a -> s {type' = a} :: ListContacts)

instance Core.AWSPager ListContacts where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listContactsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listContactsResponse_contacts
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listContacts_nextToken
          Lens..~ rs
          Lens.^? listContactsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListContacts where
  hashWithSalt _salt ListContacts' {..} =
    _salt
      `Prelude.hashWithSalt` aliasPrefix
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` type'

instance Prelude.NFData ListContacts where
  rnf ListContacts' {..} =
    Prelude.rnf aliasPrefix
      `Prelude.seq` Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf type'

instance Data.ToHeaders ListContacts where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ("SSMContacts.ListContacts" :: Prelude.ByteString),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListContacts where
  toJSON ListContacts' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("AliasPrefix" Data..=) Prelude.<$> aliasPrefix,
            ("MaxResults" Data..=) Prelude.<$> maxResults,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            ("Type" Data..=) Prelude.<$> type'
          ]
      )

instance Data.ToPath ListContacts where
  toPath = Prelude.const "/"

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

-- | /See:/ 'newListContactsResponse' smart constructor.
data ListContactsResponse = ListContactsResponse'
  { -- | A list of the contacts and escalation plans in your Incident Manager
    -- account.
    contacts :: Prelude.Maybe [Contact],
    -- | The pagination token to continue to the next page of results.
    nextToken :: 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 'ListContactsResponse' 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:
--
-- 'contacts', 'listContactsResponse_contacts' - A list of the contacts and escalation plans in your Incident Manager
-- account.
--
-- 'nextToken', 'listContactsResponse_nextToken' - The pagination token to continue to the next page of results.
--
-- 'httpStatus', 'listContactsResponse_httpStatus' - The response's http status code.
newListContactsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListContactsResponse
newListContactsResponse pHttpStatus_ =
  ListContactsResponse'
    { contacts = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | A list of the contacts and escalation plans in your Incident Manager
-- account.
listContactsResponse_contacts :: Lens.Lens' ListContactsResponse (Prelude.Maybe [Contact])
listContactsResponse_contacts = Lens.lens (\ListContactsResponse' {contacts} -> contacts) (\s@ListContactsResponse' {} a -> s {contacts = a} :: ListContactsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The pagination token to continue to the next page of results.
listContactsResponse_nextToken :: Lens.Lens' ListContactsResponse (Prelude.Maybe Prelude.Text)
listContactsResponse_nextToken = Lens.lens (\ListContactsResponse' {nextToken} -> nextToken) (\s@ListContactsResponse' {} a -> s {nextToken = a} :: ListContactsResponse)

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

instance Prelude.NFData ListContactsResponse where
  rnf ListContactsResponse' {..} =
    Prelude.rnf contacts
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus