<?php

namespace MGModule\DNSManager2\mgLibs\custom\task;

use \Exception;
use \MGModule\DNSManager2\mgLibs\custom\manager;
use \MGModule\DNSManager2\mgLibs\custom\TaskManager;
use \MGModule\DNSManager2\models\custom\globalsetting\GlobalSettingEnum;
use \MGModule\DNSManager2\models\custom\server;
use \MGModule\DNSManager2\models\custom\task;
use \MGModule\DNSManager2\models\custom\zone\Zone;
use \MGModule\DNSManager2\models\custom\zone\Repository as ZoneRepo;
use \MGModule\DNSManager2\mgLibs\custom\helpers;
use \MGModule\DNSManager2\mgLibs\custom\dns;
use \MGModule\DNSManager2\mgLibs\custom\task\TaskTypeCodesCodes;
use \MGModule\DNSManager2 as main;
use MGModule\DNSManager2\helpers\custom\ZoneLinked;
use MGModule\DNSManager2\mgLibs\custom\helpers\ZoneLogger\Manager as ZoneLoggerManager;

class ExportFromFile extends TaskAbstract
{
    protected $abort_after_repeats = array('main' => 0);
    protected $taskTypeCode = TaskTypeCodesCodes::EXPORTFROMFILE;
        
    public function mainDescription()
    {
        $serverTo = new server\Server($this->getParams('toServer'));

        return 'Export from: '.$this->getParams('fromFile').' to: '.$serverTo->name;
    }
    
    public function main($params)
    {
        $cron_import_run_each = manager\GlobalSettingHelper::getSetting(GlobalSettingEnum::CRON_IMPORT_RUN_EACH?:5);

        if(!$this->isReadyToRun( $cron_import_run_each ))
        {
            return true;
        }
        
        if($this->getStatus() == task\TaskStatusEnum::START)
        {
            $this->addChild('fetchZonesList')->run();
            $this->setStatus(task\TaskStatusEnum::IN_PROGRESS);
        }
        elseif($this->getStatus() == task\TaskStatusEnum::IN_PROGRESS)
        {
            $zones_per_run = manager\GlobalSettingHelper::getSetting(GlobalSettingEnum::CRON_IMPORT_ZONES_PER_RUN);
            $childs = $this->getXChilds($zones_per_run, 'export', task\TaskStatusEnum::START);

            if(count($childs) < $zones_per_run)
            {
                $childs += $this->getXChilds($zones_per_run - count($childs), 'export');
            }
            
            foreach($childs as $child) 
            {
                $child->run();
            }
            $this->setFinishedStatusOnCronRun('export', $zones_per_run);
        }
    }
    
    public function fetchZonesList($params)
    {
        $zoneList = $this->listBulkZones();

        foreach($zoneList as $zone)
        {
            $this->addResult(array(
                'domain' => $zone->zoneName,
                'ip' => $zone->ip ? $zone->ip : ''
            ));
        }

        $this->setStatus(task\TaskStatusEnum::FINISHED);
    }
    
    public function export($params)
    {
        try
        {
            $server = new server\Server($this->parent->getParams('toServer'));

            $moduleTo = $server->getModule();
            $moduleTo->setDomain($params['domain']);            
            $zoneLoggerManager = new ZoneLoggerManager($this->getParams('clientid'));
            $oldZone = $this->getZoneIfExists();
            if($oldZone)
            {
                $zoneUpdateHelper = new main\mgLibs\custom\helpers\ZoneUpdateHelper($oldZone, $this->getbackupZone(), $zoneLoggerManager);
                $zoneUpdateHelper->update();
            }
            else
            {
                if($moduleTo->isIPRequired())
                {
                    $moduleTo->setIP($params['ip']);
                }

                $newZone = $this->createNewZone($server);
                $zoneUpdateHelper = new main\mgLibs\custom\helpers\ZoneUpdateHelper($newZone, $this->getbackupZone(), $zoneLoggerManager);
                $zoneUpdateHelper->update();
            }

            $this->setStatus(task\TaskStatusEnum::FINISHED);

            $result = TaskManager::getTaskResultByID($this->getParams('resultid'));
            $result->data['status'] = 'exported';
            $result->save();
        }
        catch(Exception $e)
        {
            $result = TaskManager::getTaskResultByID($this->getParams('resultid'));
            $result->data['status'] = $e->getMessage();
            $result->save();
        }
    }
    
    private function createNewZone($server)
    {
        $zone = new Zone();
        $zone->clientid = $this->getParams('clientid');
        $zone->type = $this->getParams('type');
        $zone->relid = $this->getParams('relid');
        $zone->name = $this->getParams('domain');
        $zone->ip = $this->getParams('ip');
        $zone->created_at = date('Y-m-d H:i:s');
        $zone->serverid = $server->id;
        $zone->status = 1;
        $zone->save();

        $zoneLink = new ZoneLinked($zone);
        $zoneLink->connectByService();

        $module = $zone->getModule();
        if(!$module->zoneExists())
        {
            $module->activateZone();
        }

        return $zone;
    }
    
    private function getZoneIfExists()
    {
        $repo = new ZoneRepo();
        $repo->byName($this->getParams('domain'));
        
        $zone = $repo->one();

        return $zone;
    }
    
    private function listBulkZones()
    {
        $path = 'zonesFilesStorage'.DIRECTORY_SEPARATOR.'bulkZones';
        $zoneList = helpers\ImportExportFileHelper::listBulkExportZones($this->parent->getParams('fromFile'), $path);

        return $zoneList;
    }
    
    private function removeCurrentRecords($zone)
    {
        $module = $zone->getModule();
        if(!$module->zoneExists())
        {
            return true;
        }
        
        $records = $module->getRecords();    
        foreach($records as $record)
        {
            $module->deleteRecord($record);
        }
    }
    
    private function removeOldZone($zone)
    {
        $module = $zone->getModule();
        
        if($module->zoneExists())
        {
            $module->terminateZone();
        }
        $zone->delete();
    }

    private function exportRecords($zone)
    {
        $recordsList = $this->getRecordsListToExport();
        $module = $zone->getModule();
        
        foreach($recordsList as $recData)
        {
            $record = $this->createRecordFromArr($recData);
            $module->addRecord($record);            
        }
    }
    
    private function getbackupZone()
    {
        $zoneName = $this->getParams('domain');
        $zoneList = $this->listBulkZones();
  
        return $zoneList->{$zoneName};
    }    
    
    private function getRecordsListToExport()
    {
        $zoneName = $this->getParams('domain');
        $zoneList = $this->listBulkZones();
  
        return $zoneList->{$zoneName}->zoneRecords;
    }
    
    private function createRecordFromArr($recData)
    {
        $record = new dns\record\Record();
        $record->name = $recData->name;
        $record->type = $recData->type;
        $record->ttl = $recData->ttl;
        $record->line = $recData->line;
        $record->createRDATAObject();
        $record->rdata->setDataFromArray($recData->rdata);

        return $record;        
    }
}