<?php

include_once 'ApiHandler.php';

class PdnsAPI
{
    public function __construct()
    {
        $this->http = new ApiHandler();
    }

    public function listzones($q = false)
    {
        $api = clone $this->http;
        $api->method = 'GET';
        if ($q) {
            $api->url = '/servers/localhost/search-data?q=*' . $q . '*&max=25';
            $api->call();
            $ret = [];
            $seen = [];

            foreach ($api->json as $result) {
                if (isset($seen[$result['zone_id']])) {
                    continue;
                }
                $zone = $this->loadzone($result['zone_id']);
                unset($zone['rrsets']);
                array_push($ret, $zone);
                $seen[$result['zone_id']] = 1;
            }

            return $ret;
        }
        $api->url = '/servers/localhost/zones';
        $api->call();

        return $api->json;
    }

    public function loadzone($zoneid)
    {
        $api = clone $this->http;
        $api->method = 'GET';
        $api->url = "/servers/localhost/zones/$zoneid";
        $api->call();

        return $api->json;
    }

    public function exportzone($zoneid)
    {
        $api = clone $this->http;
        $api->method = 'GET';
        $api->url = "/servers/localhost/zones/$zoneid/export";
        $api->call();

        return $api->json;
    }

    public function savezone($zone)
    {
        $api = clone $this->http;
        // We have to split up RRSets and Zoneinfo.
        // First, update the zone

        $zonedata = $zone;
        unset($zonedata['id']);
        unset($zonedata['url']);
        unset($zonedata['rrsets']);

        if (!isset($zone['serial']) or gettype($zone['serial']) != 'integer') {
            $api->method = 'POST';
            $api->url = '/servers/localhost/zones';
            $api->content = json_encode($zonedata);
            $api->call();

            return $api->json;
        }
        $api->method = 'PUT';
        $api->url = $zone['url'];
        $api->content = json_encode($zonedata);
        $api->call();

        // Then, update the rrsets
        if (count($zone['rrsets']) > 0) {
            $api->method = 'PATCH';
            $api->content = json_encode(['rrsets' => $zone['rrsets']]);
            $api->call();
        }

        return $this->loadzone($zone['id']);
    }

    public function deletezone($zoneid)
    {
        $api = clone $this->http;
        $api->method = 'DELETE';
        $api->url = "/servers/localhost/zones/$zoneid";
        $api->call();

        return $api->json;
    }

    public function getzonekeys($zoneid)
    {
        $ret = [];
        $api = clone $this->http;
        $api->method = 'GET';
        $api->url = "/servers/localhost/zones/$zoneid/cryptokeys";

        $api->call();

        foreach ($api->json as $key) {
            if (!isset($key['active'])) {
                continue;
            }

            $key['dstxt'] = $zoneid . ' IN DNSKEY ' . $key['dnskey'] . "\n\n";

            if (isset($key['ds'])) {
                foreach ($key['ds'] as $ds) {
                    $key['dstxt'] .= $zoneid . ' IN DS ' . $ds . "\n";
                }
                unset($key['ds']);
            }
            array_push($ret, $key);
        }

        return $ret;
    }
}