<?php

namespace MGModule\DNSManager2\mgLibs\custom\manager;

use MGModule\DNSManager2\mgLibs\custom\dns;
use MGModule\DNSManager2\models\custom\set;
use MGModule\DNSManager2\models\custom\zone\Zone;

class RecordHelper {
    private $record = false;
    private $zone;
    private $serverConfiguration;
	private $nameservers;

	public function __construct(set\record\SetRecord $record, Zone $zone, $nameservers = null) {
        $this->record = $record;
        $this->zone = $zone;
        $this->serverConfiguration = $zone->getServer()->getModuleConfiguration();
        $this->nameservers = $nameservers;
    }
    
    /**
     * 
     * @param type $domain
     * @param type $ip
     * @return \MGModule\DNSManager2\mgLibs\custom\dns\record\Record
     */
    public function toDNSRecord($domain, $ip = '') {
        $record = new dns\record\Record();
        $record->name = $this->getNameWithReplacedValues($domain, $ip);
        $record->type = $this->record->type;
        $record->ttl = $this->record->ttl;
        $record->createRDATAObject();
        $record->rdata->setDataFromArray($this->getRDATAWithReplacedValues($domain, $ip));      
        return $record;
    }
    
    public function getNameWithReplacedValues($domain, $ip = '') {
        return $this->replaceValues($this->record->name, $domain, $ip);
    }
    
    public function getRDATAWithReplacedValues($domain, $ip = '') {
        $out = array();
        foreach($this->record->rdata as $k => $v) {
            $out[$k] = $this->replaceValues($v, $domain, $ip);
        }
        return $out;
    }
    
    private function replaceValues($value, $domain, $ip = '') {
        $splitDomain = $this->splitDomain($domain);

        $a = str_replace('{$domain}', $domain, $value);
        $b = str_replace('{$domainname}', $splitDomain['domainname'], $a); 
        $c = str_replace('{$domainextension}', $splitDomain['extension'], $b);
        $d = str_replace('{$serverhostname}', $this->serverConfiguration['hostname'], $c);

        foreach ( range(1, 5) as $i )
        {
            $search = '{$ns' . $i . '}';
            $replace = (is_array($this->nameservers) && $this->nameservers[$i - 1]) ? $this->nameservers[$i - 1] : '';
            $d = str_replace($search, $replace, $d);
        }
        return str_replace('{$ip}', $ip?:'', $d);
    }
    private function splitDomain($domain)
    {
        $domain = explode('.', $domain);
        if(count($domain) > 2)
        {
            $newDomain                  = array();
            $newDomain['domainname']    = $domain[0];    
            foreach($domain as $k => $v)
            {
                if($domain[$k+1])
                {
                    $newDomain['extension'] .= $newDomain['extension'] ? '.' . $domain[$k+1] : $domain[$k+1];
                 }
            }
            
            return $newDomain;    
        }
        
        return array(
            'domainname'=> $domain[0],
            'extension' => $domain[1]);
    }
    
    /** @return dns\Record */
    public function obj() {
        return $this->record;
    }
}