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<?php

/**
 * @file controllers/grid/queries/form/QueryNoteForm.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 QueryNoteForm
 *
 * @ingroup controllers_grid_queries_form
 *
 * @brief Form for adding/editing a new query note.
 */

namespace PKP\controllers\grid\queries\form;

use APP\core\Application;
use APP\template\TemplateManager;
use PKP\core\Core;
use PKP\db\DAORegistry;
use PKP\form\Form;
use PKP\note\Note;
use PKP\note\NoteDAO;
use PKP\query\Query;
use PKP\query\QueryDAO;
use PKP\user\User;

class QueryNoteForm extends Form
{
    /** @var array Action arguments */
    public $_actionArgs;

    /** @var Query */
    public $_query;

    /** @var int Note ID */
    public $_noteId;

    /** @var bool Whether or not this is a new note */
    public $_isNew;

    /**
     * Constructor.
     *
     * @param array $actionArgs Action arguments
     * @param Query $query
     * @param User $user The current user ID
     * @param int $noteId The note ID to edit, or null for new.
     */
    public function __construct($actionArgs, $query, $user, $noteId = null)
    {
        parent::__construct('controllers/grid/queries/form/queryNoteForm.tpl');
        $this->_actionArgs = $actionArgs;
        $this->setQuery($query);

        if ($noteId === null) {
            // Create a new (placeholder) note.
            $noteDao = DAORegistry::getDAO('NoteDAO'); /** @var NoteDAO $noteDao */
            $note = $noteDao->newDataObject();
            $note->setAssocType(Application::ASSOC_TYPE_QUERY);
            $note->setAssocId($query->getId());
            $note->setUserId($user->getId());
            $note->setDateCreated(Core::getCurrentDate());
            $this->_noteId = $noteDao->insertObject($note);
            $this->_isNew = true;
        } else {
            $this->_noteId = $noteId;
            $this->_isNew = false;
        }

        // Validation checks for this form
        $this->addCheck(new \PKP\form\validation\FormValidator($this, 'comment', 'required', 'submission.queries.messageRequired'));
        $this->addCheck(new \PKP\form\validation\FormValidatorPost($this));
        $this->addCheck(new \PKP\form\validation\FormValidatorCSRF($this));
    }

    //
    // Getters and Setters
    //
    /**
     * Get the query
     *
     * @return Query
     */
    public function getQuery()
    {
        return $this->_query;
    }

    /**
     * Set the query
     *
     * @param Query $query
     */
    public function setQuery($query)
    {
        $this->_query = $query;
    }

    /**
     * Assign form data to user-submitted data.
     *
     * @see Form::readInputData()
     */
    public function readInputData()
    {
        $this->readUserVars([
            'comment',
        ]);
    }

    /**
     * @copydoc Form::fetch
     *
     * @param null|mixed $template
     */
    public function fetch($request, $template = null, $display = false)
    {
        $templateMgr = TemplateManager::getManager($request);
        $templateMgr->assign([
            'actionArgs' => $this->_actionArgs,
            'noteId' => $this->_noteId,
            'csrfToken' => $request->getSession()->getCSRFToken(),
        ]);
        return parent::fetch($request, $template, $display);
    }

    /**
     * @copydoc Form::execute()
     *
     * @return Note The created note object.
     */
    public function execute(...$functionArgs)
    {
        $request = Application::get()->getRequest();
        $user = $request->getUser();

        // Create a new note.
        $noteDao = DAORegistry::getDAO('NoteDAO'); /** @var NoteDAO $noteDao */
        $note = $noteDao->getById($this->_noteId);
        $note->setUserId($request->getUser()->getId());
        $note->setContents($this->getData('comment'));
        $noteDao->updateObject($note);
        $queryDao = DAORegistry::getDAO('QueryDAO'); /** @var QueryDAO $queryDao */

        // Check whether the query needs re-opening
        $query = $this->getQuery();
        if ($query->getIsClosed()) {
            $headNote = $query->getHeadNote();
            if ($user->getId() != $headNote->getUserId()) {
                // Re-open the query.
                $query->setIsClosed(false);
                $queryDao = DAORegistry::getDAO('QueryDAO'); /** @var QueryDAO $queryDao */
                $queryDao->updateObject($query);
            }
        }

        // Always include current user to query participants
        if (!in_array($user->getId(), $queryDao->getParticipantIds($query->getId()))) {
            $queryDao->insertParticipant($query->getId(), $user->getId());
        }

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

        return $note;
    }
}