<?php

namespace MGModule\DNSManager2\mgLibs\custom\dns\submodules;

use \MGModule\DNSManager2\mgLibs\custom\dns;
use \MGModule\DNSManager2\mgLibs\custom\dns\exceptions;
use \MGModule\DNSManager2\mgLibs\custom\dns\interfaces;

class AtomiaDNS extends dns\SubmoduleAbstract implements interfaces\SubmoduleTTLInterface, interfaces\SubmoduleImportInterface {    
    public $configFields = array(
        'hostname' =>array (
                'friendlyName'  =>  'Hostname',
                'validators' => array(
                    'required' => 'required',
                )
        ),
        'username' =>array (
                'friendlyName'  => 'Username',
                'validators' => array(
                    'required' => 'required',
                )
        ),
        'password' =>array (
                'friendlyName'  => 'Password',
                'type'=> 'password',
                'validators' => array(
                    'required' => 'required',
                )
        ),
        'ns_group' =>array (
                'friendlyName'  =>  'Nameserver Group',
        ),
        'c_ns1' =>array (
                'friendlyName'  =>  'Nameserver 1',
        ),
        'c_ns2' =>array (
                'friendlyName'  =>  'Nameserver 2',
        ),
        'c_ns3' =>array (
                'friendlyName'  =>  'Nameserver 3',
        ),
        'c_ns4' =>array (
                'friendlyName'  =>  'Nameserver 4',
        ),
    );
    
    public $availableTypes = array('A', 'AAAA', 'NS', 'MX', 'CNAME', 'TXT', 'SRV');

    public function testConnection() {
       $this->get('Noop');
    }

    public function zoneExists() {
        try {
            $this->get('GetZone', array($this->domain));
        } catch (exceptions\DNSSubmoduleException $e) {
            if($e->getCode() == dns\SubmoduleExceptionCodes::COMMAND_ERROR) {
                return false;
            }
            throw $e;
        }
        return true;
    }

    public function getRecords($recordType = false) { 
        $result = $this->get('GetZone', array($this->domain));
        $out = array();
        foreach($result as $tt) {
            foreach($tt->records as $data) {
                if(in_array((string)$data->type, $recordType!==false ? array(strtoupper($recordType)) : $this->getAvailableRecordTypes())) {
                    $record = new dns\record\Record();
                    $record->line = (string)$data->id;
                    $record->name = (string)$data->label;
                    $record->type = (string)$data->type;
                    $record->ttl = (string)$data->ttl;
                    $record->createRDATAObject();
                    $record->rdata->fromString($data->rdata);

                    $out[] = $record;
                }
            }
        }
        return $out;
    }
    
    public function addRecord(dns\record\Record $record) {
        $params = array(
            $this->domain,
            array(
                'resourcerecord' => $this->recordToParamsArray($record),
            )
        );
        
        $this->get('AddDnsRecords', $params);
    }

    public function editRecord(dns\record\Record $record) {
        
        $r = array_merge(array('id' => $record->line), $this->recordToParamsArray($record));
        
        $params = array(
            $this->domain,
            array(
                'resourcerecord' => $r,
            )
        );
        
        $this->get('EditDnsRecords', $params);
    }
    

    public function deleteRecord(dns\record\Record $record) {
        $r = array_merge(array('id' => $record->line), $this->recordToParamsArray($record));
        $params = array(
            $this->domain,
            array(
                'resourcerecord' => $r,
            )
        );
        
        $this->get('DeleteDnsRecords', $params);
    }

    private function recordToParamsArray(dns\record\Record $record) {
        $name = $record->nameToRelative($this->domain);
        $params = array(
            'label' => empty($name) ? '@' : $name,
            'class' => $record->class,
            'ttl' => $record->ttl,
            'type' => $record->type,
            'rdata' => $record->rdata->toString(),
        );
        
        return $params;
    }

    public function activateZone() {
        $ns = array();
        if(!empty($this->config['c_ns1']))
            $ns[] = $this->config['c_ns1'].'.';
        if(!empty($this->config['c_ns2']))
            $ns[] = $this->config['c_ns2'].'.';
        if(!empty($this->config['c_ns3']))
            $ns[] = $this->config['c_ns3'].'.';
        if(!empty($this->config['c_ns4']))
            $ns[] = $this->config['c_ns4'].'.';
        
        $params = array(
            $this->domain,
            3600,
            $this->config['c_ns1'].'.',
            $this->config['c_ns2'].'.',
            10800,
            3600,
            604800,
            86400,
            $ns,
            $this->config['ns_group']? $this->config['ns_group'] : 'default'
        );
        
        $this->get('AddZone', $params);
    }

    public function terminateZone() {
        $this->get('DeleteZone', array($this->domain));
    }

    private function get($function, $params = false) { 
        $header = array("X-Auth-Username: " . $this->config['username'], "X-Auth-Password: " . $this->config['password']);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, 'http://' . $this->config['hostname'] . '/pretty/atomiadns.json/' . $function);
        curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        if($params){
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
        }
        $result = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        
        if (curl_errno($ch)) {
            throw new exceptions\DNSSubmoduleException("cURL Error: " . curl_errno($ch) . " - " . curl_error($ch), dns\SubmoduleExceptionCodes::CONNECTION_PROBLEM);
        }
        curl_close($ch);
        
        $data = json_decode($result);
        if(empty($data)) {
            throw new exceptions\DNSSubmoduleException('Unable to parse response', dns\SubmoduleExceptionCodes::INVALID_RESPONSE);
        }
        
        if(isset($data->error_message) || $http_code != 200) {
            throw new exceptions\DNSSubmoduleException($data->error_message?:'Unknown Error', dns\SubmoduleExceptionCodes::COMMAND_ERROR);
        }
        
        return $data;
    }
    
    private function array_values_recursive($array) {
        $out = array();
        foreach($array as $value) {
            if(is_array($value)) {
                $out[] = $this->array_values_recursive($value);
            } else {
                $out[] = $value;
            }
        }
        return $out;
    }

    public function getZones() {
        $result = $this->get('GetAllZones');
        
        $out = array();
        foreach($result as $zone) {
            $out[(string)$zone->name] = '';
        }
        
        return $out;
    }
}