<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_finder
 *
 * @copyright   (C) 2011 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Finder\Administrator\Model;

use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
use Joomla\CMS\MVC\Model\ListModel;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\Database\DatabaseQuery;

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

/**
 * Maps model for the Finder package.
 *
 * @since  2.5
 */
class MapsModel extends ListModel
{
    /**
     * Constructor.
     *
     * @param   array                 $config   An optional associative array of configuration settings.
     * @param   ?MVCFactoryInterface  $factory  The factory.
     *
     * @see     \Joomla\CMS\MVC\Model\BaseDatabaseModel
     * @since   3.7
     */
    public function __construct($config = [], MVCFactoryInterface $factory = null)
    {
        if (empty($config['filter_fields'])) {
            $config['filter_fields'] = [
                'state', 'a.state',
                'title', 'a.title',
                'branch',
                'branch_title', 'd.branch_title',
                'level', 'd.level',
                'language', 'a.language',
            ];
        }

        parent::__construct($config, $factory);
    }

    /**
     * Method to test whether a record can be deleted.
     *
     * @param   object  $record  A record object.
     *
     * @return  boolean  True if allowed to delete the record. Defaults to the permission for the component.
     *
     * @since   2.5
     */
    protected function canDelete($record)
    {
        return $this->getCurrentUser()->authorise('core.delete', $this->option);
    }

    /**
     * Method to test whether a record can have its state changed.
     *
     * @param   object  $record  A record object.
     *
     * @return  boolean  True if allowed to change the state of the record. Defaults to the permission for the component.
     *
     * @since   2.5
     */
    protected function canEditState($record)
    {
        return $this->getCurrentUser()->authorise('core.edit.state', $this->option);
    }

    /**
     * Method to delete one or more records.
     *
     * @param   array  $pks  An array of record primary keys.
     *
     * @return  boolean  True if successful, false if an error occurs.
     *
     * @since   2.5
     */
    public function delete(&$pks)
    {
        $pks   = (array) $pks;
        $table = $this->getTable();

        // Include the content plugins for the on delete events.
        PluginHelper::importPlugin('content');

        // Iterate the items to check if all of them exist.
        foreach ($pks as $i => $pk) {
            if (!$table->load($pk)) {
                // Item is not in the table.
                $this->setError($table->getError());

                return false;
            }
        }

        // Iterate the items to delete each one.
        foreach ($pks as $i => $pk) {
            if ($table->load($pk)) {
                if ($this->canDelete($table)) {
                    $context = $this->option . '.' . $this->name;

                    // Trigger the onContentBeforeDelete event.
                    $result = Factory::getApplication()->triggerEvent('onContentBeforeDelete', [$context, $table]);

                    if (in_array(false, $result, true)) {
                        $this->setError($table->getError());

                        return false;
                    }

                    if (!$table->delete($pk)) {
                        $this->setError($table->getError());

                        return false;
                    }

                    // Trigger the onContentAfterDelete event.
                    Factory::getApplication()->triggerEvent('onContentAfterDelete', [$context, $table]);
                } else {
                    // Prune items that you can't change.
                    unset($pks[$i]);
                    $error = $this->getError();

                    if ($error) {
                        $this->setError($error);
                    } else {
                        $this->setError(Text::_('JLIB_APPLICATION_ERROR_DELETE_NOT_PERMITTED'));
                    }
                }
            }
        }

        // Clear the component's cache
        $this->cleanCache();

        return true;
    }

    /**
     * Build an SQL query to load the list data.
     *
     * @return  \Joomla\Database\DatabaseQuery
     *
     * @since   2.5
     */
    protected function getListQuery()
    {
        $db = $this->getDatabase();

        // Select all fields from the table.
        $query = $db->getQuery(true)
            ->select('a.id, a.parent_id, a.lft, a.rgt, a.level, a.path, a.title, a.alias, a.state, a.access, a.language')
            ->from($db->quoteName('#__finder_taxonomy', 'a'))
            ->where('a.parent_id != 0');

        // Join to get the branch title
        $query->select([$db->quoteName('b.id', 'branch_id'), $db->quoteName('b.title', 'branch_title')])
            ->leftJoin($db->quoteName('#__finder_taxonomy', 'b') . ' ON b.level = 1 AND b.lft <= a.lft AND a.rgt <= b.rgt');

        // Join to get the map links.
        $stateQuery = $db->getQuery(true)
            ->select('m.node_id')
            ->select('COUNT(NULLIF(l.published, 0)) AS count_published')
            ->select('COUNT(NULLIF(l.published, 1)) AS count_unpublished')
            ->from($db->quoteName('#__finder_taxonomy_map', 'm'))
            ->leftJoin($db->quoteName('#__finder_links', 'l') . ' ON l.link_id = m.link_id')
            ->group('m.node_id');

        $query->select('COALESCE(s.count_published, 0) AS count_published');
        $query->select('COALESCE(s.count_unpublished, 0) AS count_unpublished');
        $query->leftJoin('(' . $stateQuery . ') AS s ON s.node_id = a.id');

        // If the model is set to check item state, add to the query.
        $state = $this->getState('filter.state');

        if (is_numeric($state)) {
            $query->where('a.state = ' . (int) $state);
        }

        // Filter over level.
        $level = $this->getState('filter.level');

        if (is_numeric($level) && (int) $level === 1) {
            $query->where('a.parent_id = 1');
        }

        // Filter the maps over the branch if set.
        $branchId = $this->getState('filter.branch');

        if (is_numeric($branchId)) {
            $query->where('a.parent_id = ' . (int) $branchId);
        }

        // Filter the maps over the search string if set.
        if ($search = $this->getState('filter.search')) {
            $search = $db->quote('%' . str_replace(' ', '%', $db->escape(trim($search), true) . '%'));
            $query->where('a.title LIKE ' . $search);
        }

        // Add the list ordering clause.
        $query->order($db->escape($this->getState('list.ordering', 'branch_title, a.lft')) . ' ' . $db->escape($this->getState('list.direction', 'ASC')));

        return $query;
    }

    /**
     * Returns a record count for the query.
     *
     * @param   \Joomla\Database\DatabaseQuery|string
     *
     * @return  integer  Number of rows for query.
     *
     * @since   3.0
     */
    protected function _getListCount($query)
    {
        $query = clone $query;
        $query->clear('select')->clear('join')->clear('order')->clear('limit')->clear('offset')->select('COUNT(*)');

        return (int) $this->getDatabase()->setQuery($query)->loadResult();
    }

    /**
     * Method to get a store id based on model configuration state.
     *
     * This is necessary because the model is used by the component and
     * different modules that might need different sets of data or different
     * ordering requirements.
     *
     * @param   string  $id  A prefix for the store id. [optional]
     *
     * @return  string  A store id.
     *
     * @since   2.5
     */
    protected function getStoreId($id = '')
    {
        // Compile the store id.
        $id .= ':' . $this->getState('filter.search');
        $id .= ':' . $this->getState('filter.state');
        $id .= ':' . $this->getState('filter.branch');
        $id .= ':' . $this->getState('filter.level');

        return parent::getStoreId($id);
    }

    /**
     * Returns a Table object, always creating it.
     *
     * @param   string  $type    The table type to instantiate. [optional]
     * @param   string  $prefix  A prefix for the table class name. [optional]
     * @param   array   $config  Configuration array for model. [optional]
     *
     * @return  \Joomla\CMS\Table\Table  A database object
     *
     * @since   2.5
     */
    public function getTable($type = 'Map', $prefix = 'Administrator', $config = [])
    {
        return parent::getTable($type, $prefix, $config);
    }

    /**
     * Method to auto-populate the model state.  Calling getState in this method will result in recursion.
     *
     * @param   string  $ordering   An optional ordering field. [optional]
     * @param   string  $direction  An optional direction. [optional]
     *
     * @return  void
     *
     * @since   2.5
     */
    protected function populateState($ordering = 'branch_title, a.lft', $direction = 'ASC')
    {
        // Load the filter state.
        $this->setState('filter.search', $this->getUserStateFromRequest($this->context . '.filter.search', 'filter_search', '', 'string'));
        $this->setState('filter.state', $this->getUserStateFromRequest($this->context . '.filter.state', 'filter_state', '', 'cmd'));
        $this->setState('filter.branch', $this->getUserStateFromRequest($this->context . '.filter.branch', 'filter_branch', '', 'cmd'));
        $this->setState('filter.level', $this->getUserStateFromRequest($this->context . '.filter.level', 'filter_level', '', 'cmd'));

        // Load the parameters.
        $params = ComponentHelper::getParams('com_finder');
        $this->setState('params', $params);

        // List state information.
        parent::populateState($ordering, $direction);
    }

    /**
     * Method to change the published state of one or more records.
     *
     * @param   array    $pks    A list of the primary keys to change.
     * @param   integer  $value  The value of the published state. [optional]
     *
     * @return  boolean  True on success.
     *
     * @since   2.5
     */
    public function publish(&$pks, $value = 1)
    {
        $user  = $this->getCurrentUser();
        $table = $this->getTable();
        $pks   = (array) $pks;

        // Include the content plugins for the change of state event.
        PluginHelper::importPlugin('content');

        // Access checks.
        foreach ($pks as $i => $pk) {
            $table->reset();

            if ($table->load($pk) && !$this->canEditState($table)) {
                // Prune items that you can't change.
                unset($pks[$i]);
                $this->setError(Text::_('JLIB_APPLICATION_ERROR_EDITSTATE_NOT_PERMITTED'));

                return false;
            }
        }

        // Attempt to change the state of the records.
        if (!$table->publish($pks, $value, $user->get('id'))) {
            $this->setError($table->getError());

            return false;
        }

        $context = $this->option . '.' . $this->name;

        // Trigger the onContentChangeState event.
        $result = Factory::getApplication()->triggerEvent('onContentChangeState', [$context, $pks, $value]);

        if (in_array(false, $result, true)) {
            $this->setError($table->getError());

            return false;
        }

        // Clear the component's cache
        $this->cleanCache();

        return true;
    }

    /**
     * Method to purge all maps from the taxonomy.
     *
     * @return  boolean  Returns true on success, false on failure.
     *
     * @since   2.5
     */
    public function purge()
    {
        $db    = $this->getDatabase();
        $query = $db->getQuery(true)
            ->delete($db->quoteName('#__finder_taxonomy'))
            ->where($db->quoteName('parent_id') . ' > 1');
        $db->setQuery($query);
        $db->execute();

        $query->clear()
            ->delete($db->quoteName('#__finder_taxonomy_map'));
        $db->setQuery($query);
        $db->execute();

        return true;
    }

    /**
     * Manipulate the query to be used to evaluate if this is an Empty State to provide specific conditions for this extension.
     *
     * @return DatabaseQuery
     *
     * @since 4.0.0
     */
    protected function getEmptyStateQuery()
    {
        $query = parent::getEmptyStateQuery();

        $title = 'ROOT';

        $query->where($this->getDatabase()->quoteName('title') . ' <> :title')
            ->bind(':title', $title);

        return $query;
    }
}
