<?php
// +----------------------------------------------------------------------
// | Niucloud-admin 企业快速开发的多应用管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud.com
// +----------------------------------------------------------------------
// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace app\service\admin\sys;

use addon\shop\app\model\ShopStat;
use app\job\sys\CheckJob;
use app\model\campus\Campus;
use app\model\campus_person_role\CampusPersonRole;
use app\model\communication_records\CommunicationRecords;
use app\model\customer_resources\CustomerResources;
use app\model\departments\Departments;
use app\model\market_performance\MarketPerformance;
use app\model\order_table\OrderTable;
use app\model\personnel\Personnel;
use app\model\personnel\PersonnelSummary;
use app\model\student\Student;
use app\model\student_courses\StudentCourses;
use app\model\sys\SysConfig;
use app\model\sys\SysRole;
use app\service\core\sys\CoreSysConfigService;
use core\base\BaseAdminService;
use think\facade\Db;
use Throwable;

/**
 * 系统信息服务层
 * Class SystemService
 * @package app\service\admin\sys
 */
class SystemService extends BaseAdminService
{
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * 获取版权信息(网站整体，不按照站点设置)
     * @return array
     */
    public function getInfo()
    {
        return [
            'os' => PHP_OS,
            'environment' => $_SERVER[ 'SERVER_SOFTWARE' ],
            'php_v' => PHP_VERSION,
            'version' => config('version')
        ];
    }

    /**
     * 获取域名配置
     */
    public function getUrl()
    {
        return (new CoreSysConfigService())->getSceneDomain();
    }

    /**
     * 获取系统信息
     * @return array
     */
    public function getSystemInfo()
    {
        $server = [];
        $server[] = [ "name" => get_lang('dict_setting.server_system'), "server" => PHP_OS ];
        $server[] = [ "name" => get_lang('dict_setting.server_setting'), "server" => PHP_SAPI ];
        $server[] = [ "name" => get_lang('dict_setting.php_version'), "server" => PHP_VERSION];

        //环境权限
        $system_variables = [];
        //pdo
        $pdo = extension_loaded('pdo') && extension_loaded('pdo_mysql');
        $system_variables[] = [ "name" => "pdo", "need" => get_lang('dict_setting.php_authority_ask'), "status" => $pdo ];
        //curl
        $curl = extension_loaded('curl') && function_exists('curl_init');
        $system_variables[] = [ "name" => "curl", "need" => get_lang('dict_setting.php_authority_ask'), "status" => $curl ];
        //openssl
        $openssl = extension_loaded('openssl');
        $system_variables[] = [ "name" => "openssl", "need" => get_lang('dict_setting.php_authority_ask'), "status" => $openssl ];
        //gd
        $gd = extension_loaded('gd');
        $system_variables[] = [ "name" => "GD库", "need" => get_lang('dict_setting.php_authority_ask'), "status" => $gd ];
        //fileinfo
        $fileinfo = extension_loaded('fileinfo');
        $system_variables[] = [ "name" => "fileinfo", "need" => get_lang('dict_setting.php_authority_ask'), "status" => $fileinfo ];
        //目录权限
        $root_path = str_replace("\\", DIRECTORY_SEPARATOR, dirname(__FILE__, 5));
        $root_path = str_replace("../", DIRECTORY_SEPARATOR, $root_path);


        $dirs_list = [
            [ "path" => $root_path . DIRECTORY_SEPARATOR . 'runtime' . DIRECTORY_SEPARATOR, "need" => get_lang('dict_setting.file_authority_ask'), "path_name" => "/runtime", "name" => "runtime" ],
            [ "path" => $root_path . DIRECTORY_SEPARATOR . 'public' . DIRECTORY_SEPARATOR . 'upload' . DIRECTORY_SEPARATOR, "need" => get_lang('dict_setting.file_authority_ask'), "path_name" => "/public/upload", "name" => "upload" ],
        ];
        //目录 可读 可写检测
        foreach ($dirs_list as $k => $v) {
            $is_readable = is_readable($v[ "path" ]);
            $is_write = is_write($v[ "path" ]);
            if ($is_readable && $is_write) {
                $dirs_list[ $k ][ "status" ] = true;
            } else {
                $dirs_list[ $k ][ "status" ] = false;
            }
        }
        $system_variables = array_merge($system_variables, $dirs_list);

        //获取环境版本
        $server_version = [];
        $row = (array) Db::query("select VERSION() as verson");
        $server_version[] = [ "name" => get_lang('dict_setting.php_version'), "demand" => get_lang('dict_setting.php_ask'), "server" => PHP_VERSION];
        $server_version[] = [ "name" => get_lang('dict_setting.mysql_version'), "demand" => get_lang('dict_setting.mysql_ask'), "server" => $row[ 0 ][ 'verson' ] ];

        // 进程
        $process[] = [ "name" => "php think queue:listen", "need" => get_lang('dict_setting.php_authority_ask'), "status" => ( new SystemService() )->checkJob() ];

        return [ "server" => $server, "dirs_list" => $dirs_list, 'system_variables' => $system_variables, 'server_version' => $server_version, 'process' => $process ];
    }

    /**
     * 清理缓存
     */
    public function schemaCache()
    {

        if (is_dir(dirname($_SERVER[ 'DOCUMENT_ROOT' ]) . '/runtime/schema')) {
            rmdirs(dirname($_SERVER[ 'DOCUMENT_ROOT' ]) . '/runtime/schema');
        }
        return 'CLEAR_MYSQL_CACHE_SUCCESS';
    }

    /**
     *校验消息队列是否正常运行
     * @return bool
     */
    public function checkJob()
    {
        $secret = uniqid('', true);
        $file = root_path('runtime') . $secret . '.job';
        try {
            CheckJob::dispatch([ 'file' => $file ]);
        } catch ( Throwable $e) {
            return false;
        }
//        $timeout = 0;
//        while($timeout < 5){
//            if (file_exists($file)) {
//                @unlink($file);
//                return true;
//            }
//            $timeout++;
//            sleep(1);
//        }
        sleep(5);
        if (file_exists($file)) {
            @unlink($file);
            return true;
        }
        return false;
    }

    /**
     * 校验计划任务是否正常运行
     * @return bool
     */
    public function checkSchedule()
    {
        $file = root_path('runtime') . '.schedule';
        if (file_exists($file)) {
            $time = file_get_contents($file);
            if (!empty($time) && abs($time - time()) < 90) {
                return true;
            }
        }
        return false;
    }

    public function get_yjpz_config(){
        $config = new SysConfig();

        $data = $config->where(['config_key' => 'priceRules'])->value("value");

        return $data;
    }

    public function yjpz_config(array $data){
        $config = new SysConfig();

        $config->where(['config_key' => 'priceRules'])->update([
            'value' => json_encode($data['priceRules'])
        ]);

        return true;
    }


    public function xsyj_config(array $data){
        $config = new SysConfig();

        $config->where(['config_key' => 'XSYJ'])->update([
            'value' => json_encode($data['stages'])
        ]);

        $config->where(['config_key' => 'XSPJ'])->update([
            'value' => json_encode($data['form'])
        ]);

        $config->where(['config_key' => 'course_type'])->update([
            'value' => json_encode($data['course_type'])
        ]);

        return true;
    }


    public function get_xsyj_config(){
        $dict = new \app\model\dict\Dict();
        $config = new SysConfig();

        $data = $config->where(['config_key' => 'XSYJ'])->value("value");

        $form = $config->where(['config_key' => 'XSPJ'])->value("value");


        $course_type = $config->where(['config_key' => 'course_type'])->value("value");
//        $course_type = json_decode($course_type, true);

        $dict_course_type = $dict->where(['key' => 'course_type'])->value("dictionary");

        $dict_course_type = json_decode($dict_course_type, true);

        foreach ($dict_course_type as $k => $v) {
            foreach ($course_type as $k1 => $v1) {
                if($v['value'] == $v1['value']){
                    $dict_course_type[$k]['num'] = $v1['num'] ?? 0;
                }
            }

            if(!isset($dict_course_type[$k]['num'])){
                $dict_course_type[$k]['num'] = 0;
            }
        }

        return ['data' => $data,'form' => $form,'course_type' => $dict_course_type];
    }


    public function jlyj_config(array $data){
        $config = new SysConfig();

        $config->where(['config_key' => 'JLYJ'])->update([
            'value' => json_encode($data)
        ]);

        return true;
    }


    public function get_jlyj_config(){
        $config = new SysConfig();

        $data = $config->where(['config_key' => 'JLYJ'])->value("value");

        return $data;
    }

    public function home1(array $arr){
        $campus = new Campus();
        $personnel = new Personnel();
        $customerResources = new CustomerResources();
        $student = new Student();
        $data = [];
        $data['campus_count'] = $campus->count();
        $data['personnel_count'] = $personnel->count();
        $data['customerResources_count'] = $customerResources->count();
        $data['customerResources_day_count'] = $customerResources->whereTime('created_at', 'yesterday')->count();
        $data['student_count'] = $student->count();
        $data['student_day_count'] = $student->whereTime('created_at', 'yesterday')->count();

        if ($arr['date'] == 'week') {
            $start_date = date('Y-m-d', strtotime('-6 days'));
            $end_date = date('Y-m-d',strtotime('+1 days'));
        } elseif ($arr['date'] == 'month') {
            $start_date = date('Y-m-01');
            $end_date = date('Y-m-d');
        } elseif ($arr['date'] == 'year') {
            $start_date = date('Y-01-01');
            $end_date = date('Y-m-d');
        } else {
            $start_date = date('Y-m-d', strtotime('-6 days'));
            $end_date = date('Y-m-d',strtotime('+1 days'));
        }

        $stat_data = $customerResources
            ->where([  ['create_date', '>=', $start_date], ['create_date', '<=', $end_date] ])
            ->field('create_date, COUNT(*) as count')
            ->group('create_date')
            ->select()->toArray();
        $stat_data = !empty($stat_data) ? array_column($stat_data, 'count', 'create_date') : [];


        $day = ceil((strtotime($end_date) - strtotime($start_date)) / 86400);
        $value = [];
        $time = [];

        for ($i = 0; $i < $day; $i++) {

            $date = date('Y-m-d', strtotime($start_date) + $i * 86400);
            $time[] = $date;
            $value[] = isset($stat_data[ $date ]) ? $stat_data[ $date ] : 0;
        }

        $data['customer'][ 'value' ] = $value;
        $data['customer'][ 'time' ] = $time;


        $y = date('Y');
        $m = date('m');
        $campus = new Campus();
        $campusPersonnelRole = new CampusPersonRole();
        $order = new OrderTable();
        $studentCourses = new StudentCourses();
        $campus_list = $campus->select()->toArray();
        $table = [
            'table_1' => [],
            'table_1_total' => 0,

            'table_2' => [],
            'table_2_total' => 0,
        ];
        //年年度业绩完成情况
        $total_task = 0;
        $total_complete = 0;
        //年年度月卡续费完成情况
        $m_total_task = 0;
        $m_total_complete = 0;

        foreach ($campus_list as $key => $item) {
            $task = $campusPersonnelRole->where(['campus_id' => $item['id']])->sum("task_num");
            $complete = $order->alias("a")
                ->join(['school_customer_resources' => 'b'], 'a.resource_id = b.id', 'left')
                ->where(['b.campus' => $item['id'], 'order_status' => 'paid'])
                ->count();
            $rate = $complete > 0 ? round($task / $complete, 2) : 0;

            $table['table_1'][] = [
                "序号" => $key + 1,
                "校区" => $item['campus_name'],
                "任务" => $task,
                "完成" => $complete,
                "完成率" => $rate.'%',
            ];

            $total_task += $task;
            $total_complete += $complete;


            $m_task = $studentCourses
                ->alias("a")
                ->join(['school_student' => 'b'],'a.student_id = b.id','left')
                ->where([
                    ['b.campus_id', '=',$item['id']],
                    ['a.end_date','<',date("Y-m-d")]
                ])
                ->count();

            $m_complete  = $order->alias("a")
                ->join(['school_customer_resources' => 'b'], 'a.resource_id = b.id', 'left')
                ->where(['b.campus' => $item['id'], 'order_status' => 'paid','order_type' => '2'])
                ->count();

            $m_rate = $m_complete > 0 ? round($m_task / $m_complete, 2) : 0;

            $m_total_task += $m_task;
            $m_total_complete += $m_complete;
            $table['table_2'][] = [
                "序号" => $key + 1,
                "校区" => $item['campus_name'],
                "到期" => $m_task,
                "续费" => $m_complete,
                "续费率" => $m_rate.'%',
            ];

        }

        $table['table_1_total'] = $total_complete > 0 ? round($total_task / $total_complete, 2) : '0';

        $table['table_2_total'] = $m_total_complete > 0 ? round($m_total_task / $m_total_complete, 2) : '0';


        return $data;
    }

    public function home(array $arr){
        $personnel_summary = new PersonnelSummary();
        $campus = new Campus();
        $campusPersonnelRole = new CampusPersonRole();
        $order = new OrderTable();
        $studentCourses = new StudentCourses();
        $campus_list = $campus->where(['campus_status' => 1])->field("id,campus_name")->select()->toArray();

        foreach ($campus_list as &$item) {
            $item['year_task_num'] = 0; //任务数量
            $item['year_complete_num'] = 0; //完成数量
            $item['year_expire_num'] = 0; //到期数量
            $item['year_renew_num'] = 0; //续费数量
            $item['year_resource_num'] = 0; //分配的资源数量
            $item['year_visit_num'] = 0; //分配的资源数量
            $item['year_complete'] = 0; //完成率

            $item['month_task_num'] = 0; //任务数量
            $item['month_complete_num'] = 0; //完成数量
            $item['month_expire_num'] = 0; //到期数量
            $item['month_renew_num'] = 0; //续费数量
            $item['month_resource_num'] = 0; //分配的资源数量
            $item['month_visit_num'] = 0; //分配的资源数量
            $item['month_complete'] = 0; //完成率
            $item['month_zy_complete_num'] = 0; //资源完成数量
            $item['month_zy_complete'] = 0; //资源完成率
            $item['visit_num_rate'] = 0; //到访率


            $list = $personnel_summary
                ->alias("a")
                ->join(['school_campus_person_role' => 'b'], 'a.campus_person_role_id = b.id', 'left')
                ->where(['a.role_type' => 1,'b.campus_id' => $item['id']])
                ->field("a.*")
                ->select();

            foreach ($list as $val) {
                $date = explode('-', $val['task_date']);

                if($date[0] == date("Y")) {
                    $item['year_task_num'] += $val['task_num'];
                    $item['year_complete_num'] += $val['complete_num'];
                    $item['year_expire_num'] += $val['expire_num'];
                    $item['year_renew_num'] += $val['renew_num'];
                    $item['year_resource_num'] += $val['resource_num'];
                    $item['year_visit_num'] += $val['visit_num'];
                    if($date[1] == date("m")){
                        $item['month_task_num'] += $val['task_num'];
                        $item['month_complete_num'] += $val['complete_num'];
                        $item['month_expire_num'] += $val['expire_num'];
                        $item['month_renew_num'] += $val['renew_num'];
                        $item['month_resource_num'] += $val['resource_num'];
                        $item['month_visit_num'] += $val['visit_num'];
                        $complete = $order->alias("a")
                            ->join(['school_customer_resources' => 'b'], 'a.resource_id = b.id', 'left')
                            ->where(['b.campus' => $item['id'], 'order_status' => 'paid','order_type' => 1])
                            ->count();
                        $item['month_zy_complete_num'] += $complete;
                    }
                }


            }

            $item['complete'] = $item['year_complete_num'] > 0 ? round($item['year_complete_num'] / $item['year_task_num'], 2) : 0;
            $item['xf_complete'] = $item['year_renew_num'] > 0 ? round($item['year_renew_num'] / $item['year_expire_num'], 2) : 0;

            $item['month_complete'] = $item['month_complete_num'] > 0 ? round($item['month_complete_num'] / $item['month_task_num'], 2) : 0;
            $item['month_xf_complete'] = $item['month_renew_num'] > 0 ? round($item['month_renew_num'] / $item['month_expire_num'], 2) : 0;
            $item['ls_month_xf_complete'] = $item['month_expire_num'] > 0 ? round(($item['month_expire_num'] - $item['month_renew_num']) / $item['month_expire_num'], 2) : 0;

            $item['month_zy_complete'] = ($item['month_zy_complete_num'] > 0 and $item['month_task_num'] > 0) ? round($item['month_zy_complete_num'] / $item['month_task_num'], 2) : 0;

            $item['visit_num_rate'] = $item['month_visit_num'] > 0 ? round($item['month_visit_num'] / $item['month_resource_num'], 2) : 0;

        }

        //年度合计
        $total_task = array_sum(array_column($campus_list, 'year_task_num'));
        $total_complete = array_sum(array_column($campus_list, 'year_complete_num'));
        $complete_rate = $total_complete > 0 ? round($total_complete / $total_task, 2) : 0;
        $total_expire = array_sum(array_column($campus_list, 'year_expire_num'));
        $total_renew = array_sum(array_column($campus_list, 'year_renew_num'));
        $xf_complete_rate = $total_renew > 0 ? round($total_renew / $total_expire, 2) : 0;
        //月度合计
        $month_total_task = array_sum(array_column($campus_list, 'month_task_num'));
        $month_total_complete = array_sum(array_column($campus_list, 'month_complete_num'));
        $month_complete_rate = $month_total_complete > 0 ? round($month_total_complete / $month_total_task, 2) : 0;

        $month_total_expire = array_sum(array_column($campus_list, 'month_expire_num'));
        $month_total_renew = array_sum(array_column($campus_list, 'month_renew_num'));
        $month_xf_complete_rate = $month_total_renew > 0 ? round($month_total_renew / $month_total_expire, 2) : 0;
        $ls_month_xf_complete_rate = $month_total_expire > 0 ? round(($month_total_expire - $month_total_renew) / $month_total_expire, 2) : 0;


        //资源合计
        $zy_total_task = array_sum(array_column($campus_list, 'month_task_num'));
        $zy_total_complete = array_sum(array_column($campus_list, 'month_zy_complete_num'));
        $zy_complete_rate = $zy_total_complete > 0 ? round($zy_total_complete / $zy_total_task, 2) : 0;


        $zy_month_visit_num = array_sum(array_column($campus_list, 'month_visit_num'));
        $zy_month_resource_num = array_sum(array_column($campus_list, 'month_resource_num'));
        $zy_visit_complete_rate = $zy_month_visit_num > 0 ? round($zy_month_visit_num / $zy_month_resource_num, 2) : 0;


        //月度个人业绩情况

        $personnel_summary_list = $personnel_summary
            ->alias("a")
            ->join(['school_campus_person_role' => 'b'], 'a.campus_person_role_id = b.id', 'left')
            ->join(['school_personnel' => 'c'], 'c.id = b.person_id', 'left')
            ->where(['a.role_type' => 1,'a.task_date' => date("Y-m")])
            ->field("a.*,c.name")
            ->select();
        $year = date('Y');

        foreach ($personnel_summary_list as &$row) {
            $row['year_complete_num'] = $personnel_summary
                ->where(['campus_person_role_id' => $row['campus_person_role_id']])
                ->where('task_date', 'like', "$year-%")
                ->sum("complete_num");

            $row['xf_complete'] = $row['renew_num'] > 0 ? round($row['renew_num'] / $row['expire_num'], 2) : 0;
            $row['ls_xf_complete'] = $row['expire_num'] > 0 ? round(($row['expire_num'] - $row['renew_num']) / $row['expire_num'], 2) : 0;

        }


        $wx_summary_list = $personnel_summary_list->toArray();
        usort($wx_summary_list, function($a, $b) {
            return $b['complete_num'] <=> $a['complete_num'];
        });
        $xf_summary_list = $personnel_summary_list->toArray();
        usort($xf_summary_list, function($a, $b) {
            return $b['renew_num'] <=> $a['renew_num'];
        });


        $jl_personnel_summary_list = $personnel_summary
            ->alias("a")
            ->join(['school_campus_person_role' => 'b'], 'a.campus_person_role_id = b.id', 'left')
            ->join(['school_personnel' => 'c'], 'c.id = b.person_id', 'left')
            ->where(['a.role_type' => 2,'a.task_date' => date("Y-m")])
            ->field("a.*,c.name")
            ->select();
        $year = date('Y');

        foreach ($jl_personnel_summary_list as &$row) {
            $row['year_complete_num'] = $personnel_summary
                ->where(['campus_person_role_id' => $row['campus_person_role_id']])
                ->where('task_date', 'like', "$year-%")
                ->sum("complete_num");

            $row['xf_complete'] = $row['renew_num'] > 0 ? round($row['renew_num'] / $row['expire_num'], 2) : 0;
            $row['ls_xf_complete'] = $row['expire_num'] > 0 ? round(($row['expire_num'] - $row['renew_num']) / $row['expire_num'], 2) : 0;

        }

        $xf_jl_summary_list = $jl_personnel_summary_list->toArray();
        usort($xf_summary_list, function($a, $b) {
            return $b['renew_num'] <=> $a['renew_num'];
        });

        return [
            'year' => date("Y"),
            'month' => date("m"),
            'campus_list' => $campus_list,
            'complete_rate' => $complete_rate,
            'xf_complete_rate' => $xf_complete_rate,
            'month_complete_rate' => $month_complete_rate,
            'month_xf_complete_rate' => $month_xf_complete_rate,
            'ls_month_xf_complete_rate' => $ls_month_xf_complete_rate,
            'wx_summary_list' => $wx_summary_list,
            'xf_summary_list' => $xf_summary_list,
            'xf_jl_summary_list' => $xf_jl_summary_list,
            'zy_complete_rate' => $zy_complete_rate,
            'zy_visit_complete_rate' => $zy_visit_complete_rate
        ];

    }


    public function scsjtj(array $row){
        $customerResources = new CustomerResources();
        $campus_person_role = new CampusPersonRole();
        $communication_records = new CommunicationRecords();
        $market_performance = new MarketPerformance();
        $per = new Personnel();
        $data['zysl'] = $customerResources->count();
        $data['ygt'] = 0;
        $data['wgt'] = 0;
        $list = $customerResources->select();
        foreach ($list as $k => $v) {
            if($communication_records->where(['resource_id' => $v['id']])->find()){
                $data['ygt']++;
            }else{
                $data['wgt']++;
            }
        }

        $data['scry'] = $campus_person_role->where(['dept_id' => 1])->count();
        $start = date('Y-m-01');
        $end = date('Y-m-t');
        $data['yhs'] = $market_performance->whereBetween('performance_date', [$start, $end])->Sum("performance_amount");

        $data['barData'] = [];
        $where = [];
        $c_where = [];
        if(!empty($row['dateRange'])){
            $where[] = ['performance_date','>=',$row['dateRange'][0]];
            $where[] = ['performance_date','<=',$row['dateRange'][1]];

            $c_where[] = ['create_date','>=',$row['dateRange'][0]];
            $c_where[] = ['create_date','<=',$row['dateRange'][1]];

        }
        $sc_list = $campus_person_role->where(['dept_id' => 1])->select()->toArray();
        foreach ($sc_list as $k => $v) {
            $data['barData'][] = [
                'name' => $per->where(['id' => $v['person_id']])->value('name'),
                'value' => $market_performance->where(['personnel_id' => $v['person_id']])->where($where)->Sum("performance_amount")
            ];
        }
        $arr = [0=>'未知',1=>'线上',2=>'地推',3=>'转介绍',4=>'活动',5=>'内部员工'];

        $data['pieData'] = [];
        foreach ($arr as $k => $v) {
            $data['pieData'][] = [
                'name' => $v,
                'value' => $customerResources->where(['source_channel' => $k])->where($c_where)->count()
            ];
        }
        return $data;
    }

    public function person_all(){
        $Personnel = new Personnel();
        return $Personnel->select()->toArray();
    }

    public function role_all(){
        $sysRole = new SysRole();
        return $sysRole->select()->toArray();
    }

    public function departments_all(){
        $departments = new Departments();
        return $departments->select()->toArray();
    }

    //数据汇总表
    public function personnel_summary(){
        $campus_person_role = new CampusPersonRole();
        $personnel_summary = new PersonnelSummary();
        $role = [5,6];
        $campus_person_role_list = $campus_person_role->where([
            ['role_id','in',$role]
        ])->select();


        $insertArr = [];
        foreach ($campus_person_role_list as $k => $v) {
            $insertArr[] = [
                'task_date' => date("Y-m"),
                'campus_person_role_id' => $v['id'],
                'role_type' => $v['role_id'] == 6 ? 1 : 2,
            ];
        }


        $personnel_summary->insertAll($insertArr);

        return true;

    }

}