<?php

namespace App\Libraries\MySocket;

use CodeIgniter\Config\Services;

class GoogleSocket extends MySocket
{
	private $session;
	private string $_access_token = "";
	private string $_token_name = "access_token";
	private string $_token_type = "";
	private string $_google_oauth_version  = "v3";
	public function __construct()
	{
		parent::__construct();
		$this->session = Services::session();
	}

	public function createAuthUrl(): string
	{
		$options = http_build_query([
			'response_type' => 'code',
			'client_id' => env('socket.google.client.id'),
			'redirect_uri' => base_url(env('socket.google.client.callback_url')),
			'scope' => "https://www.googleapis.com/auth/userinfo.profile openid https://www.googleapis.com/auth/userinfo.email",
			'access_type' => 'offline',
			'prompt' => 'consent'
		]);
		//기본적으로 검색할 범위를 지정하고 사용자를 Google OAuth 동의 화면으로 리디렉션합니다
		return "https://accounts.google.com/o/oauth2/v2/auth?" . $options;
	}

	// (object) array(
	//    'access_token' => 'sdfsdfsdfsdf',
	//    'expires_in' => 3599,
	//    'refresh_token' => 'sdfsdf',
	//    'scope' => 'https://www.googleapis.com/auth/userinfo.profile openid https://www.googleapis.com/auth/userinfo.email',
	//    'token_type' => 'Bearer',
	//    'id_token' => 'fadfasdfsadf',
	// )	
	public function setToken(string $access_code): void
	{
		$options = [
			'code' => $access_code,
			'client_id' => env('socket.google.client.id'),
			'client_secret' => env('socket.google.client.key'),
			'redirect_uri' => base_url(env('socket.google.client.callback_url')),
			'grant_type' => 'authorization_code',
		];
		$response = $this->post("https://accounts.google.com/o/oauth2/token", $options);
		$tokenInfo = json_decode($response->getBody(), true);
		if (isset($tokenInfo['error'])) {
			$message = sprintf(
				"Google: %s에서  API 호출 실패: \n--request options--\n%s\n--response--\n%s\n",
				__FUNCTION__,
				var_export($options, true),
				var_export($response, true)
			);
			log_message("error", $message);
			throw new \Exception($message);
		}
		if (!isset($tokenInfo[$this->_token_name]) || empty($tokenInfo[$this->_token_name])) {
			$message = sprintf(
				"Google: Token 정보가 없습니다.\n--tokenInfo--\n%s\n",
				__FUNCTION__,
				var_export($tokenInfo, true)
			);
			log_message("error", $message);
			throw new \Exception($message);
		}
		//토큰 Type정보 가져오기 getUserInfo()에서 사용
		$this->_token_type = $tokenInfo['token_type'];
		// 토큰 정보 가져오기
		$this->_access_token = $tokenInfo[$this->_token_name];
		// 세션에 Token 값 설정
		$this->session->set($this->_token_name, $this->_access_token);
	}

	public function getToken(): string
	{
		return $this->session->get($this->_token_name);
	}

	// throw new \Exception(__METHOD__ . "에서 데이터 처리 필요");
	// DEBUG - 2023-07-13 12:54:51 --> \Google\Service\Oauth2\Userinfo::__set_state(array(
	// 	'internal_gapi_mappings' =>
	// 	 'familyName' => 'family_name',
	// 	 'givenName' => 'given_name',
	// 	 'verifiedEmail' => 'verified_email',
	//    ),
	// 	'modelData' =>
	//    array (
	// 	 'verified_email' => true,
	// 	 'given_name' => '이름',
	// 	 'family_name' => '성',
	//    ),
	// 	'processed' =>
	//    array (
	//    ),
	// 	'email' => 'twsdfsew342s@gmail.com',
	// 	'familyName' => '성',
	// 	'gender' => NULL,
	// 	'givenName' => '이름',
	// 	'hd' => NULL,
	// 	'id' => '103667492432234234236838324',
	// 	'link' => NULL,
	// 	'locale' => 'ko',
	// 	'name' => '성이름',
	// 	'picture' => 'https://lh3.googleusercontent.com/a/AAcHTteFSgefsdfsdRJBkJA2tBEmg4PQrvI1Ta_5IXu5=s96-c',
	// 	'verifiedEmail' => true,
	//  ))
	public function getUserInfo(): array
	{
		$options = ["Authorization: {$this->_token_type} {$this->getToken()}"];
		$response = $this->get("https://www.googleapis.com/oauth2/{$this->_google_oauth_version}/userinfo", $options);
		$userInfo = json_decode($response->getBody(), true);
		if (isset($userInfo['error'])) {
			$message = sprintf(
				"Google: %s에서 API 호출 실패: \n--request options--\n%s\n--response--\n%s\n",
				__FUNCTION__,
				var_export($options, true),
				var_export($response, true)
			);
			log_message("error", $message);
			throw new \Exception($message);
		}
		if (isset($userInfo['email']) || empty($tokenInfo['email'])) {
			$message = sprintf(
				"Google: User 정보가 없습니다.\n--userInfo--\n%s\n",
				__FUNCTION__,
				var_export($userInfo, true)
			);
			log_message("error", $message);
			throw new \Exception($message);
		}
		// 사용자정보 가져오기
		return $userInfo;
	}
}