<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_fields
 *
 * @copyright   (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Fields\Administrator\Table;

use Joomla\CMS\Access\Rules;
use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Table\Table;
use Joomla\Database\DatabaseDriver;
use Joomla\Registry\Registry;
use Joomla\String\StringHelper;

// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Fields Table
 *
 * @since  3.7.0
 */
class FieldTable extends Table
{
    /**
     * Indicates that columns fully support the NULL value in the database
     *
     * @var    boolean
     * @since  4.0.0
     */
    protected $_supportNullValue = true;

    /**
     * Class constructor.
     *
     * @param   DatabaseDriver  $db  DatabaseDriver object.
     *
     * @since   3.7.0
     */
    public function __construct($db = null)
    {
        parent::__construct('#__fields', 'id', $db);

        $this->setColumnAlias('published', 'state');
    }

    /**
     * Method to bind an associative array or object to the JTable instance.This
     * method only binds properties that are publicly accessible and optionally
     * takes an array of properties to ignore when binding.
     *
     * @param   mixed  $src     An associative array or object to bind to the JTable instance.
     * @param   mixed  $ignore  An optional array or space separated list of properties to ignore while binding.
     *
     * @return  boolean  True on success.
     *
     * @since   3.7.0
     * @throws  \InvalidArgumentException
     */
    public function bind($src, $ignore = '')
    {
        if (isset($src['params']) && is_array($src['params'])) {
            $registry = new Registry();
            $registry->loadArray($src['params']);
            $src['params'] = (string) $registry;
        }

        if (isset($src['fieldparams']) && is_array($src['fieldparams'])) {
            // Make sure $registry->options contains no duplicates when the field type is subform
            if (isset($src['type']) && $src['type'] == 'subform' && isset($src['fieldparams']['options'])) {
                // Fast lookup map to check which custom field ids we have already seen
                $seen_customfields = array();

                // Container for the new $src['fieldparams']['options']
                $options = array();

                // Iterate through the old options
                $i = 0;

                foreach ($src['fieldparams']['options'] as $option) {
                    // Check whether we have not yet seen this custom field id
                    if (!isset($seen_customfields[$option['customfield']])) {
                        // We haven't, so add it to the final options
                        $seen_customfields[$option['customfield']] = true;
                        $options['option' . $i] = $option;
                        $i++;
                    }
                }

                // And replace the options with the deduplicated ones.
                $src['fieldparams']['options'] = $options;
            }

            $registry = new Registry();
            $registry->loadArray($src['fieldparams']);
            $src['fieldparams'] = (string) $registry;
        }

        // Bind the rules.
        if (isset($src['rules']) && is_array($src['rules'])) {
            $rules = new Rules($src['rules']);
            $this->setRules($rules);
        }

        return parent::bind($src, $ignore);
    }

    /**
     * Method to perform sanity checks on the JTable instance properties to ensure
     * they are safe to store in the database.  Child classes should override this
     * method to make sure the data they are storing in the database is safe and
     * as expected before storage.
     *
     * @return  boolean  True if the instance is sane and able to be stored in the database.
     *
     * @link    https://docs.joomla.org/Special:MyLanguage/JTable/check
     * @since   3.7.0
     */
    public function check()
    {
        // Check for valid name
        if (trim($this->title) == '') {
            $this->setError(Text::_('COM_FIELDS_MUSTCONTAIN_A_TITLE_FIELD'));

            return false;
        }

        if (empty($this->name)) {
            $this->name = $this->title;
        }

        $this->name = ApplicationHelper::stringURLSafe($this->name, $this->language);

        if (trim(str_replace('-', '', $this->name)) == '') {
            $this->name = StringHelper::increment($this->name, 'dash');
        }

        $this->name = str_replace(',', '-', $this->name);

        // Verify that the name is unique
        $table = new static($this->_db);

        if ($table->load(array('name' => $this->name)) && ($table->id != $this->id || $this->id == 0)) {
            $this->setError(Text::_('COM_FIELDS_ERROR_UNIQUE_NAME'));

            return false;
        }

        $this->name = str_replace(',', '-', $this->name);

        if (empty($this->type)) {
            $this->type = 'text';
        }

        if (empty($this->fieldparams)) {
            $this->fieldparams = '{}';
        }

        $date = Factory::getDate()->toSql();
        $user = Factory::getUser();

        // Set created date if not set.
        if (!(int) $this->created_time) {
            $this->created_time = $date;
        }

        if ($this->id) {
            // Existing item
            $this->modified_time = $date;
            $this->modified_by = $user->get('id');
        } else {
            if (!(int) $this->modified_time) {
                $this->modified_time = $this->created_time;
            }

            if (empty($this->created_user_id)) {
                $this->created_user_id = $user->get('id');
            }

            if (empty($this->modified_by)) {
                $this->modified_by = $this->created_user_id;
            }
        }

        if (empty($this->group_id)) {
            $this->group_id = 0;
        }

        return true;
    }

    /**
     * Overloaded store function
     *
     * @param   boolean  $updateNulls  True to update fields even if they are null.
     *
     * @return  mixed  False on failure, positive integer on success.
     *
     * @see     Table::store()
     * @since   4.0.0
     */
    public function store($updateNulls = true)
    {
        return parent::store($updateNulls);
    }

    /**
     * Method to compute the default name of the asset.
     * The default name is in the form table_name.id
     * where id is the value of the primary key of the table.
     *
     * @return  string
     *
     * @since   3.7.0
     */
    protected function _getAssetName()
    {
        $contextArray = explode('.', $this->context);

        return $contextArray[0] . '.field.' . (int) $this->id;
    }

    /**
     * Method to return the title to use for the asset table.  In
     * tracking the assets a title is kept for each asset so that there is some
     * context available in a unified access manager.  Usually this would just
     * return $this->title or $this->name or whatever is being used for the
     * primary name of the row. If this method is not overridden, the asset name is used.
     *
     * @return  string  The string to use as the title in the asset table.
     *
     * @link    https://docs.joomla.org/Special:MyLanguage/JTable/getAssetTitle
     * @since   3.7.0
     */
    protected function _getAssetTitle()
    {
        return $this->title;
    }

    /**
     * Method to get the parent asset under which to register this one.
     * By default, all assets are registered to the ROOT node with ID,
     * which will default to 1 if none exists.
     * The extended class can define a table and id to lookup.  If the
     * asset does not exist it will be created.
     *
     * @param   Table    $table  A Table object for the asset parent.
     * @param   integer  $id     Id to look up
     *
     * @return  integer
     *
     * @since   3.7.0
     */
    protected function _getAssetParentId(Table $table = null, $id = null)
    {
        $contextArray = explode('.', $this->context);
        $component = $contextArray[0];

        if ($this->group_id) {
            $assetId = $this->getAssetId($component . '.fieldgroup.' . (int) $this->group_id);

            if ($assetId) {
                return $assetId;
            }
        } else {
            $assetId = $this->getAssetId($component);

            if ($assetId) {
                return $assetId;
            }
        }

        return parent::_getAssetParentId($table, $id);
    }

    /**
     * Returns an asset id for the given name or false.
     *
     * @param   string  $name  The asset name
     *
     * @return  number|boolean
     *
     * @since    3.7.0
     */
    private function getAssetId($name)
    {
        $db = $this->getDbo();
        $query = $db->getQuery(true)
            ->select($db->quoteName('id'))
            ->from($db->quoteName('#__assets'))
            ->where($db->quoteName('name') . ' = :name')
            ->bind(':name', $name);

        // Get the asset id from the database.
        $db->setQuery($query);

        $assetId = null;

        if ($result = $db->loadResult()) {
            $assetId = (int) $result;

            if ($assetId) {
                return $assetId;
            }
        }

        return false;
    }
}