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<?php

/**
 * @file classes/user/form/ResetPasswordForm.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2003-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class ResetPasswordForm
 *
 * @ingroup user_form
 *
 * @brief Form to reset a user's password.
 */

namespace PKP\user\form;

use APP\facades\Repo;
use APP\template\TemplateManager;
use PKP\form\Form;
use PKP\form\validation\FormValidator;
use PKP\form\validation\FormValidatorCSRF;
use PKP\form\validation\FormValidatorCustom;
use PKP\form\validation\FormValidatorLength;
use PKP\form\validation\FormValidatorPost;
use PKP\security\Validation;
use PKP\session\SessionManager;

class ResetPasswordForm extends Form
{
    /** @var object */
    protected $_user;

    /** @var object */
    protected $_site;

    /** @var string */
    protected $_hash;

    /**
     * Constructor.
     */
    public function __construct($user, $site, $hash)
    {
        parent::__construct('user/userPasswordReset.tpl');

        $this->_user = $user;
        $this->_site = $site;
        $this->_hash = $hash;

        $this->addCheck(new FormValidatorLength($this, 'password', 'required', 'user.register.form.passwordLengthRestriction', '>=', $site->getMinPasswordLength()));
        $this->addCheck(new FormValidator($this, 'password', 'required', 'user.profile.form.newPasswordRequired'));
        $form = $this;
        $this->addCheck(new FormValidatorCustom($this, 'password', 'required', 'user.register.form.passwordsDoNotMatch', function ($password) use ($form) {
            return $password == $form->getData('password2');
        }));

        $this->addCheck(new FormValidatorPost($this));
        $this->addCheck(new FormValidatorCSRF($this));
    }

    /**
     * Get the user associated with this password
     */
    public function getUser()
    {
        return $this->_user;
    }

    /**
     * Get the site
     */
    public function getSite()
    {
        return $this->_site;
    }

    /**
     * Get the password reset hash
     */
    public function getHash()
    {
        return $this->_hash;
    }

    /**
     * @copydoc Form::display
     *
     * @param null|mixed $request
     * @param null|mixed $template
     */
    public function display($request = null, $template = null)
    {
        $templateMgr = TemplateManager::getManager($request);
        $templateMgr->assign([
            'minPasswordLength' => $this->getSite()->getMinPasswordLength(),
            'username' => $this->getUser()->getUsername(),
            'hash' => $this->getHash(),
        ]);
        parent::display($request, $template);
    }

    /**
     * Assign form data to user-submitted data.
     */
    public function readInputData()
    {
        $this->readUserVars(['username', 'hash', 'password', 'password2']);
    }

    /**
     * @copydoc Form::execute()
     */
    public function execute(...$functionArgs)
    {
        $user = $this->getUser();
        $user->setPassword(Validation::encryptCredentials($user->getUsername(), $this->getData('password')));
        $user->setMustChangePassword(0);

        SessionManager::getManager()->invalidateSessions($user->getId());
        Repo::user()->edit($user);

        parent::execute(...$functionArgs);

        return true;
    }

    /**
     * Validate the password reset hash
     */
    public function validatePasswordResetHash()
    {
        if (Validation::verifyPasswordResetHash($this->getUser()->getId(), $this->getHash())) {
            return true;
        }

        return false;
    }

    /**
     * Display the error page when passed invalid password reset hash
     *
     * @param null|mixed $template
     */
    public function displayInvalidHashErrorMessage($request, $template = null)
    {
        $this->setTemplate('frontend/pages/error.tpl');

        $templateMgr = TemplateManager::getManager($request);

        $templateMgr->assign([
            'errorMsg' => 'user.login.lostPassword.invalidHash',
            'backLink' => $request->url(null, null, 'lostPassword'),
            'backLinkLabel' => 'user.login.resetPassword',
        ]);

        parent::display($request, $template);
    }
}