<?php
/* --------------------------------------------------------------
   FilterSelectionContentView.inc.php 2018-11-19
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2018 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

class FilterSelectionContentView extends ContentView
{
    protected $language_id;
    protected $feature_value_group_array;
    protected $coo_feature_set_source;


    public function __construct()
    {
        parent::__construct();

        $this->set_template_dir(DIR_FS_CATALOG . StaticGXCoreLoader::getThemeControl()->getFilterSelectionTemplatePath());
        $this->set_content_template('filter_selection.html');
        $this->set_flat_assigns(true);
    }


    protected function set_validation_rules()
    {
        $this->validation_rules_array['language_id'] = array('type' => 'int');
        $this->validation_rules_array['feature_value_group_array'] = array('type' => 'array');
        $this->validation_rules_array['coo_feature_set_source'] = array(
            'type' => 'object',
            'object_type' => 'FeatureSetSource'
        );
    }


    public function prepare_data()
    {
        $t_uninitialized_array = $this->get_uninitialized_variables(array('language_id', 'feature_value_group_array'));
        if (empty($t_uninitialized_array)) {
            $this->coo_feature_set_source = MainFactory::create_object('FeatureSetSource');

            $this->add_filter_selection();
        } else {
            trigger_error("Variable(s) "
                . implode(', ', $t_uninitialized_array)
                . " do(es) not exist in class "
                . get_class($this)
                . " or is/are null"
                , E_USER_ERROR
            );
        }
    }


    protected function add_filter_selection()
    {
        $t_feature_values_array = $this->get_feature_values_array();

        $t_filter_selection_array = array();

        foreach ($t_feature_values_array as $t_feature_id => $t_feature_values) {
            $t_filter_selection_array[$t_feature_id] = $this->get_feature_data($t_feature_id, $t_feature_values);
        }

        $this->content_array['FILTER_SELECTION_ARRAY'] = $t_filter_selection_array;
    }


    protected function get_feature_data($p_feature_id, $p_feature_values)
    {
        $t_feature_array = array();

        $t_feature_query = $this->get_feature_sql_query($p_feature_id);
        $t_result = xtc_db_query($t_feature_query);
        if (xtc_db_num_rows($t_result) == 1) {
            $t_feature_row = xtc_db_fetch_array($t_result);
            $t_feature_array['feature_name'] = $t_feature_row['feature_name'];
            $t_feature_array['feature_values'] = array();

            foreach ($p_feature_values as $t_feature_value_id) {
                $t_feature_array['feature_values'][$t_feature_value_id] = $this->get_feature_value_data($t_feature_value_id);
            }
        }

        return $t_feature_array;
    }


    protected function get_feature_value_data($p_feature_value_id)
    {
        $t_feature_value_array = array();

        $t_feature_value_query = $this->get_feature_value_sql_query($p_feature_value_id);
        $t_result = xtc_db_query($t_feature_value_query);
        if (xtc_db_num_rows($t_result) == 1) {
            $t_feature_value_row = xtc_db_fetch_array($t_result);
            $t_feature_value_array = $t_feature_value_row['feature_value_text'];
        }

        return $t_feature_value_array;
    }


    protected function get_feature_values_array()
    {
        $t_selected_feature_values_id_array = array();

        for ($i = 0; $i < count($this->feature_value_group_array); $i++) {
            $t_selected_feature_values_id_array = array_merge($t_selected_feature_values_id_array,
                $this->feature_value_group_array[$i]['FEATURE_VALUE_ID_ARRAY']);
        }
        $t_feature_values_array = $this->coo_feature_set_source->convert_values_array_to_feature_values_array($t_selected_feature_values_id_array);

        return $t_feature_values_array;
    }


    protected function get_feature_sql_query($p_feature_id)
    {
        $t_feature_query = 'SELECT
								*
							FROM
								feature_description
							WHERE
								feature_id	= "' . (int)$p_feature_id . '"
							AND
								language_id	= "' . $this->language_id . '"';

        return $t_feature_query;
    }


    protected function get_feature_value_sql_query($p_feature_value_id)
    {
        $t_feature_value_query = 'SELECT
									*
								FROM
									feature_value_description
								WHERE
									feature_value_id = "' . (int)$p_feature_value_id . '"
								AND
									language_id = "' . $this->language_id . '"';

        return $t_feature_value_query;
    }
}