<?php

namespace App\Services\Auth;

use App\Entities\UserEntity;
use App\Helpers\AuthHelper;
use App\Models\CommonModel;
use App\Services\CommonService;
use CodeIgniter\Session\Session;


// 참고:https://github.com/SyntaxPhoenix/iloclient
abstract class AuthService extends CommonService
{
	private ?Session $_session = null;
	private $url_stack_name = "url_stack";
	protected function __construct(CommonModel $model)
	{
		parent::__construct($model);
		$this->addClassPaths('Auth');
	}
	abstract public function login(mixed $dto): UserEntity;
	final public function getHelper(): AuthHelper
	{
		if ($this->helperInstance === null) {
			$this->helperInstance = new AuthHelper();
			$this->helperInstance->setAttributes([
				'pk_field'         => $this->model->getPKField(),
				'title_field'      => $this->model->getTitleField(),
				'table'            => $this->model->getTable(),
				'useAutoIncrement' => $this->model->useAutoIncrement(),
				'class_path' => $this->getClassPaths(false)
			]);
		}
		return $this->helperInstance;
	}
	//Index,FieldForm관련
	final public function getSession(): Session
	{
		if ($this->_session === null) {
			$this->_session = \Config\Services::session();
		}
		return $this->_session;
	}
	private function getAuthInfo(string $key = ""): array|string|null
	{
		$authInfo = $this->getSession()->get(SESSION_NAMES['AUTH']);
		if ($key) {
			return $authInfo[$key] ?? null;
		}
		return $authInfo;
	}
	public function getFormFields(): array
	{
		return ['id', 'passwd'];
	}
	final public function getUID(): string|null
	{
		return $this->getAuthInfo('uid');
	}
	final public function getID(): string|null
	{
		return $this->getAuthInfo('id');
	}
	final public function getName(): string|null
	{
		return $this->getAuthInfo('name');
	}
	final public function getRole(): string|null
	{
		return $this->getAuthInfo('role');
	}
	final public function isLoggedIn(): bool
	{
		return $this->getSession()->has(SESSION_NAMES['ISLOGIN']);
	}
	final public function isAccessRole(array $roles): bool
	{
		$role = $this->getRole();
		if ($role === "") {
			return false;
		}
		// 교집합이 없으면 false
		return !empty(array_intersect(explode(DEFAULTS['DELIMITER_ROLE'], $role), $roles));
	}
	final public function pushCurrentUrl(string $url): void
	{
		$this->getSession()->set($this->url_stack_name, $url);
	}
	final public function popPreviousUrl(): string
	{
		$url = $this->getSession()->get($this->url_stack_name) ?? "";
		if (!empty($url)) {
			$this->pushCurrentUrl("");
			return $url;
		}
		return '/';  // 기본 URL
	}
	final protected function login_process(UserEntity $entity): UserEntity
	{
		$this->getSession()->set(SESSION_NAMES['ISLOGIN'], true);
		$this->getSession()->set(SESSION_NAMES['AUTH'], [
			'uid' => $entity->getPK(),
			'id' => $entity->getID(),
			'name' => $entity->getTitle(),
			'role' => $entity->role
		]);
		return $entity;
	}
	final public function logout(): void
	{
		// 세션 데이터 삭제
		$this->getSession()->remove(SESSION_NAMES['ISLOGIN']);
		$this->getSession()->remove(SESSION_NAMES['AUTH']);
		// 모든 세션 데이터 삭제
		$this->getSession()->destroy();
		// 세션 쿠키 삭제
		if (ini_get("session.use_cookies")) {
			$params = session_get_cookie_params();
			setcookie(
				session_name(),
				'',
				time() - 42000,
				$params["path"],
				$params["domain"],
				$params["secure"],
				$params["httponly"]
			);
		}
		// 세션 재생성
		session_start();
		$this->getSession()->regenerate(true);
	}
}