/*

 * This file is part of PowerDNS or dnsdist.

 * Copyright -- PowerDNS.COM B.V. and its contributors

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * In addition, for the avoidance of any doubt, permission is granted to

 * link this program with OpenSSL and to (re)distribute the binaries

 * produced as the result of such linking.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#pragma once

#include <inttypes.h>

#include <string>

#include <stdexcept>

#include "namespaces.hh"

#include "dnsname.hh"

#include "iputils.hh"

#include "misc.hh"

#include "svc-records.hh"

class RecordTextException : public runtime_error

{

public:

  RecordTextException(const string& str) : runtime_error(str)

  {}

};

class RecordTextReader

{

public:

  RecordTextReader(string  str, ZoneName  zone=ZoneName(""));

  void xfrNodeOrLocatorID(NodeOrLocatorID& val);

  void xfr64BitInt(uint64_t& val);

  void xfr48BitInt(uint64_t& val);

  void xfr32BitInt(uint32_t& val);

  void xfr16BitInt(uint16_t& val);

  void xfr8BitInt(uint8_t& val);

  void xfrType(uint16_t& val);

  void xfrIP(uint32_t& val);

  void xfrIP6(std::string& val);

  void xfrCAWithoutPort(uint8_t version, ComboAddress &val);

  void xfrCAPort(ComboAddress &val);

  void xfrTime(uint32_t& val);

  void xfrName(DNSName& val, bool compress=false);

  void xfrText(string& val, bool multi=false, bool lenField=true);

  void xfrUnquotedText(string& val, bool lenField=true);

  void xfrHexBlob(string& val, bool keepReading=false);

  void xfrBase32HexBlob(string& val);

  void xfrBlobNoSpaces(string& val, int len=-1);

  void xfrBlob(string& val, int len=-1);

  void xfrSvcParamKeyVals(set<SvcParam>& val);

  void xfrRFC1035CharString(string &val);

  void xfrSVCBValueList(vector<string> &val);

  std::string getRemaining() const {

    return d_string.substr(d_pos);

  }

  bool eof() const;

#if defined(PDNS_AUTH) // [

  /* This method is only there for parity with DNSParser::consumeRemaining(),

     see the comment there to know why it is needed.

  */

  void consumeRemaining() const

  {

  }

#endif // ]

private:

  string d_string;

  ZoneName d_zone;

  string::size_type d_pos{0};

  string::size_type d_end;

  void skipSpaces();

};

class RecordTextWriter

{

public:

  RecordTextWriter(string& str, bool noDot=false);

  void xfrNodeOrLocatorID(const NodeOrLocatorID& val);

  void xfr48BitInt(const uint64_t& val);

  void xfr32BitInt(const uint32_t& val);

  void xfr16BitInt(const uint16_t& val);

  void xfr8BitInt(const uint8_t& val);

  void xfrIP(const uint32_t& val);

  void xfrIP6(const std::string& val);

  void xfrCAWithoutPort(uint8_t version, ComboAddress &val);

  void xfrCAPort(ComboAddress &val);

  void xfrTime(const uint32_t& val);

  void xfrBase32HexBlob(const string& val);

  void xfrType(const uint16_t& val);

  void xfrName(const DNSName& val, bool compress=false);

  void xfrText(const string& val, bool multi=false, bool lenField=true);

  void xfrUnquotedText(const string& val, bool lenField=true);

  void xfrBlobNoSpaces(const string& val, int len=-1);

  void xfrBlob(const string& val, int len=-1);

  void xfrHexBlob(const string& val, bool keepReading=false);

  void xfrSvcParamKeyVals(const set<SvcParam>& val);

  void xfrSVCBValueList(const vector<string> &val);

  bool eof() const { return true; };

  std::string getRemaining() const {

     return "";

  }

  #if defined(PDNS_AUTH) // [

  /* This method is only there for parity with DNSParser::consumeRemaining(),

     see the comment there to know why it is needed.

  */

  void consumeRemaining() const

  {

  }

#endif // ]

private:

  string& d_string;

  bool d_nodot;

};