/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#import "OFADNSResourceRecord.h"

@implementation OFADNSResourceRecord
- (instancetype)initWithName: (OFString *)name
		    DNSClass: (OFDNSClass)DNSClass
		  recordType: (OFDNSRecordType)recordType
			 TTL: (uint32_t)TTL
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithName: (OFString *)name
		     address: (const OFSocketAddress *)address
			 TTL: (uint32_t)TTL
{
	self = [super initWithName: name
			  DNSClass: OFDNSClassIN
			recordType: OFDNSRecordTypeA
			       TTL: TTL];

	_address = *address;

	return self;
}

- (const OFSocketAddress *)address
{
	return &_address;
}

- (bool)isEqual: (id)object
{
	OFADNSResourceRecord *record;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFADNSResourceRecord class]])
		return false;

	record = object;

	if (record->_name != _name && ![record->_name isEqual: _name])
		return false;

	if (record->_DNSClass != _DNSClass)
		return false;

	if (record->_recordType != _recordType)
		return false;

	if (!OFSocketAddressEqual(&record->_address, &_address))
		return false;

	return true;
}

- (unsigned long)hash
{
	unsigned long hash;

	OFHashInit(&hash);

	OFHashAddHash(&hash, _name.hash);
	OFHashAddByte(&hash, _DNSClass >> 8);
	OFHashAddByte(&hash, _DNSClass);
	OFHashAddByte(&hash, _recordType >> 8);
	OFHashAddByte(&hash, _recordType);
	OFHashAddHash(&hash, OFSocketAddressHash(&_address));

	OFHashFinalize(&hash);

	return hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat:
	    @"<%@:\n"
	    @"\tName = %@\n"
	    @"\tAddress = %@\n"
	    @"\tTTL = %" PRIu32 "\n"
	    @">",
	    self.className, _name, OFSocketAddressString(&_address), _TTL];
}
@end