<?php

namespace BRSystems\Core\Sys\sysPermissionGroups\inc;

use BRSystems\Core\Library\cDb\cDb;

/**
 * sysUsers Module
 *
 * @category sysPermissionGroupsModule Module
 * @author Mareks Keišs <mareks.keiss@brsystems.lv>
 * @since Version 2.0
 */
class sysPermissionGroupsModule
{
    public $db;

    /**
     * Class constructor
     */
    public function __construct() {

        $this->db = cDb::getInstance();

    }

    /**
     * Function to get module records
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param string $where - sql query
     * @param string $sort - sql query
     * @param int $offset - db table offset
     * @param int $limitPerPage - limit per page
     * @return array of data
     * @version 1.1
     */
    public function getModuleRecords($where, $sort, $offset = 0, $limitPerPage = 20){

            $sSql = "
                    SELECT SQL_CALC_FOUND_ROWS
                         pg.id,
                         pg.group_name,
                         pg.group_description,
                         pg.group_blocked
                    FROM
                         site_users_groups pg
                    WHERE
                        1 {$where}
                    ORDER BY
                        {$sort}
                    LIMIT
                        {$offset}, {$limitPerPage}
                    ";

            $this->db->query($sSql);
            return $this->db->getArray();
    }

    /**
     * Function to add or save user data
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param int $id - user id
     * @param array $data - user data
     * @return bool|int user id
     * @version 1.1
     */
    public function saveRecordDataById($id, $data){

        if($id){
            if(!$this->db->_queryUpdate('site_users_groups', $data, array('id' => $id))){
                return false;
            }
        }else{
            if(!($id = $this->db->_queryInsert('site_users_groups', $data))){
                return false;
            }
        }
        return $id;

    }

    /**
     * Function to get group data by id
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param int $id - user id
     * @return array - user data
     * @version 1.1
     */
    public function getGroupDataById($id){

        return $this->db->_querySelectRow('site_users_groups', false, array('id' => $id));

    }

    /**
     * Function to get group linked permissions
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param int $groupId - group id
     * @return array - with records
     * @version 1.1
     */
    public function getGroupPermissionsByGrId($groupId){
        $groupId = $groupId ? $groupId : 0;
        $sSql = "
                SELECT
                    *
                FROM (
                    SELECT
                        DISTINCT sp.id,
                        COALESCE(mc.cl_name, '') as type_name,
                        sp.p_name,
                        sp.p_type_id,
                        sp.p_description,
                        stp.id > 0 as `sel`
                    FROM
                        site_permissions sp
                        LEFT JOIN mod_classificators mc ON
                            mc.id = sp.p_type_id
                        LEFT JOIN site_users_permissions stp ON
                            stp.permissions_id = sp.id
                            AND stp.groups_id = '" . $this->db->prepData($groupId) . "'
                            AND stp.user_id = 0
                ) dt
                ORDER BY
                    dt.p_type_id, dt.p_name
                ";

        $this->db->query($sSql);
        return $this->db->getArray();
    }

    /**
     * Function to handle & rewrite group permissions
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param int   $groupId - group id
     * @param array $permissions
     * @return bool true / false
     * @version 1.1
     */
    public function updateGroupPermissions($groupId, $permissions = array()){
        if($groupId){
            $this->db->_queryDelete("site_users_permissions", array('user_id' => 0, 'groups_id' => $groupId));
            if(count($permissions)){
                $this->db->_queryInsertArray("site_users_permissions", $permissions);
            }
            return true;
        }
        return false;
    }

    /**
     * Function to delete table records form db
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param array $ids - record ids to delete
     * @return bool true / false
     * @version 1.1
     */
    public function deleteRecords($ids){

        return $this->db->execute("DELETE FROM `site_users_groups` WHERE `id` IN (" . implode(',', $ids) . ")");

    }

    /**
     * Function to change record status in db table
     *
     * @author Mareks Keišs <mareks.keiss@brsystems.lv>
     * @category sysPermissionGroupsModule Module
     * @param array $ids - record ids to affect
     * @param string $field - field to update for status ENUM
     * @return bool true / false
     * @version 1.1
     */
    public function changeRecordsStatus($ids, $field){

        $time = time();
        $ids = implode(',', $ids);
        $status = $this->db->query("UPDATE site_users_groups pg SET {$field} = '1', group_modified = '{$time}' WHERE {$field} = '0' AND id IN ({$ids})");
        if(!$status)
            return $status;
        $status = $this->db->query("UPDATE site_users_groups pg SET {$field} = '0', group_modified = '{$time}' WHERE {$field} = '1' AND id IN ({$ids}) AND group_modified <> '{$time}'");
        return $status;

    }
}