<?php
/**
 * This source file is part of the open source project
 * ExpressionEngine (https://expressionengine.com)
 *
 * @link      https://expressionengine.com/
 * @copyright Copyright (c) 2003-2022, Packet Tide, LLC (https://www.packettide.com)
 * @license   https://expressionengine.com/license Licensed under Apache License, Version 2.0
 */

namespace ExpressionEngine\Service\Filter;

use ExpressionEngine\Library\CP\URL;
use ExpressionEngine\Service\View\ViewFactory;
use ExpressionEngine\Model\Content\StructureModel;

/**
 * Columns Filter
 */
class Columns extends Filter
{
    public $view_id = null;
    public $channel_id = null;

    public function __construct(array $columns = array(), StructureModel $channel = null, $view_id = null)
    {
        $this->name = 'columns';
        $this->label = lang('columns_filter');
        $this->options = $columns;
        $this->view_id = $view_id;

        $this->default_value = ['entry_id', 'title', 'entry_date', 'author', 'status', 'comments'];
    }

    // get columns from view
    public function value()
    {
        $value = '';

        //if we had channel switched and no saved view, make sure to fallback to default
        if (ee()->input->post('filter_by_channel') != '') {
            $value = parent::value();
        }

        $channel_id = !empty(ee()->input->post('filter_by_channel')) ? (int) ee()->input->post('filter_by_channel') : (int) ee()->input->get('filter_by_channel');

        $view = ee()->session->getMember()->EntryManagerViews->filter('channel_id', $channel_id)->first();

        if (!empty($view)) {
            $value = $view->getColumns();
        }

        if (empty($value)) {
            $value = $this->default_value;
        }

        return $value;
    }

    /**
     * @see Filter::render
     */
    public function render(ViewFactory $view, URL $url)
    {
        //selected options go first in chosen order
        $options = [];
        $selected = $this->value();
        if (!is_array($selected)) {
            $selected = json_decode($selected);
        }
        foreach ($selected as $key) {
            if (isset($this->options[$key])) {
                $options[$key] = $this->options[$key];
                unset($this->options[$key]);
            }
        }
        $options = array_merge($options, $this->options);
        $filter = array(
            'label' => '<i class=\'fal fa-columns\'></i>',
            'value' => '',
            'available_columns' => $options,
            'selected_columns' => $selected
        );

        return $view->make('_shared/filters/columns')->render($filter);
    }
}

// EOF
