/*
 Copyright (C) 2000-2003 Max Berger
 
 This file is part of libsyncml, written for the Opengroupware project (OGo)
 
 OGo is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the
 Free Software Foundation; either version 2, or (at your option) any
 later version.
 
 OGo 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 for more details.
 
 You should have received a copy of the GNU Lesser General Public
 License along with OGo; see the file COPYING.  If not, write to the
 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 02111-1307, USA.
 */
// $Id$

#include "SyncMLTagSmarts.h"
#include <NGExtensions/NGBase64Coding.h>

@implementation SyncMLTagItemWithSmartDecode
- (SyncMLTagData *)data {
  NSString *originalFormat = [self->meta format];
  NSString *newStringData = NULL;
  if (([[self->data stringdata]length]==0) || ([originalFormat length]==0))
    return [super data];
  if ([originalFormat isEqual:SYNCML_FORMAT_BASE64]) {
    // FIXME: utf8?? see remark below
    // newStringData = [NSString stringWithData:
    //                     [[self->data stringdata]dataByDecodingBase64] 
    //                      usingEncodingNamed:NSUTF8StringEncoding];
    newStringData = [[self->data stringdata]stringByDecodingBase64];
    [self->meta setFormat:SYNCML_FORMAT_CHR];
    [self->data setStringdata:newStringData];
  }
  return [super data];
}
@end

@implementation SyncMLTagItemWithSmartEncode

- (void)setData:(SyncMLTagData *)_data {
  NSString *newStringData;
  NSRange range;
  [super setData:_data];

  if ([[self->data stringdata] length]==0) return;
  if (self->meta==NULL) self->meta = [[SyncMLTagMeta alloc]init];
  if ([[self->meta format]length]==0)
    [self->meta setFormat:SYNCML_FORMAT_CHR];
  
  if ([[self->meta format]isEqual:SYNCML_FORMAT_CHR]) {
    range = [[self->data stringdata] 
	      rangeOfCharacterFromSet:
		[NSCharacterSet characterSetWithCharactersInString:@"<>"]];
    if ( (range.location>0) &&
         (range.location<[[self->data stringdata]length])) {
      // FIXME: Have absolutely no idea which encoding clients expect on
      // base64 encoded string data. UTF8 seems right and might work in
      // the most cases, but who knows?
      // OR at least, this what i WOULD like to to. 
      // In reality, this crashes :(
      // newStringData = [[[self->data stringdata] 
      //  dataUsingEncodingNamed: NSUTF8StringEncoding]
      //      stringByEncodingBase64];
      newStringData = [[self->data stringdata] stringByEncodingBase64];
      [self->meta setFormat:SYNCML_FORMAT_BASE64];
      [self->data setStringdata:newStringData];    
    }
  }
}

@end /* SyncMLTagItemWithSmartEncode */