<?php
/**
 * Created by Stefan Warnat
 * User: Stefan
 * Date: 02.05.2017
 * Time: 13:07
 */

namespace Workflow\Plugins\RelationAddExtend;


use Workflow\VtUtils;

class DependentList extends \Workflow\RelationAddExtend {
    protected $_hasSupport = array('query');

    public function setRelatedModule($moduleName, $title) {
        $this->_relatedModule = $moduleName;
        $this->_title = $title;
    }

    public function getQuery($sourceId, $includeAllModTables = false) {
        $adb = \PearDatabase::getInstance();
        $query = "SELECT vtiger_crmentity.crmid /* Insert Fields */ ";

        $currentModuleName = \Workflow\VtUtils::getModuleNameForCRMID($sourceId);
        $currentModule = \CRMEntity::getInstance($currentModuleName);
        $other = \CRMEntity::getInstance($this->getRelatedModule());

        $dependentFieldSql = $adb->pquery("SELECT tabid, fieldname, columnname FROM vtiger_field WHERE uitype='10' AND" .
            " fieldid IN (SELECT fieldid FROM vtiger_fieldmodulerel WHERE relmodule=? AND module=?)", array($currentModuleName, $this->getRelatedModule()));
        $numOfFields = $adb->num_rows($dependentFieldSql);

        if ($numOfFields == 0) {
            throw new \Exception('There is no such relation between '.$currentModule.' and '.$this->getRelatedModule());
        }

        $dependentColumn = $adb->query_result($dependentFieldSql, 0, 'columnname');

        $pastJoinTables = array($other->table_name, 'vtiger_crmentity');
        $more_relation = '';
        if($includeAllModTables == true) {
            $relations = $other->tab_name_index;
            foreach ($relations as $table => $index) {
                if (in_array($table, $pastJoinTables)) {
                    continue;
                }

                $pastJoinTables[] = $table;

                $more_relation .= " JOIN `" . $table . "` ON (`" . $table . "`.`" . $index . "` = `" . $other->table_name . "`.`" . $other->table_index . "`)";
            }
        }

        if (!empty($other->related_tables)) {
            foreach ($other->related_tables as $tname => $relmap) {
                if (in_array($tname, $pastJoinTables)) {
                    continue;
                }

                $query .= ", $tname.*";

                // Setup the default JOIN conditions if not specified
                if (empty($relmap[1]))
                    $relmap[1] = $other->table_name;
                if (empty($relmap[2]))
                    $relmap[2] = $relmap[0];
                $more_relation .= " LEFT JOIN $tname ON $tname.$relmap[0] = $relmap[1].$relmap[2]";
            }
        }

        $query .= " FROM $other->table_name";
        $query .= " INNER JOIN vtiger_crmentity ON vtiger_crmentity.crmid = $other->table_name.$other->table_index";
        $query .= " INNER  JOIN $currentModule->table_name   ON $currentModule->table_name.$currentModule->table_index = $other->table_name.$dependentColumn";
        $query .= $more_relation;
        $query .= " LEFT  JOIN vtiger_users        ON vtiger_users.id = vtiger_crmentity.smownerid";
        $query .= " LEFT  JOIN vtiger_groups       ON vtiger_groups.groupid = vtiger_crmentity.smownerid";

        $query .= " WHERE vtiger_crmentity.deleted = 0 AND $currentModule->table_name.$currentModule->table_index = ".$sourceId;

        return $query;
    }

    /**
     * @param $moduleName
     * @return array
     */
    public static function getAvailableRelatedLists($moduleName) {
        $adb = \PearDatabase::getInstance();
        $sql = 'SELECT relation_id, tabid, related_tabid, label FROM vtiger_relatedlists WHERE tabid = '.getTabId($moduleName).' AND name = "get_dependents_list"';
        $result = $adb->query($sql, true);

        $items = array();
        while($row = $adb->fetchByAssoc($result)) {
            $relatedModule = VtUtils::getModuleName($row['related_tabid']);

            /**
             * @var RelatedLists $obj
             */
            $obj = new self('DepList@'.$row['relation_id'].'@'.$relatedModule);
            $obj->setRelatedModule('DepList@'.$row['relation_id'].'@'.$relatedModule, vtranslate($row['label'], $moduleName));

            $items[] = $obj;
        }

        return $items;
    }

}