// This file is a part of the Framsticks GDK.
// Copyright (C) 1999-2014  Maciej Komosinski and Szymon Ulatowski.  See LICENSE.txt for details.
// Refer to http://www.framsticks.com/ for further information.

#ifndef _STRINGFILE_H_
#define _STRINGFILE_H_

#include "virtfile.h"
#include <frams/util/sstring.h>

class StringFILE: public VirtFILE
{
  protected:
SString& str;
long pos;
  public:
StringFILE(SString& s):str(s),pos(0) {}
int Vread(void *ptr, size_t size, size_t nmemb);
int Vwrite(const void *ptr, size_t size, size_t nmemb) {str.append((const char*)ptr,size*nmemb); return size*nmemb;}
int Veof() {return pos>=str.len();}
int Vputc(int c) {str+=(char)c; return c;}
int Vputs(const char *s) {str.append(s,strlen(s)); return 0;}
int Vgetc();
char *Vgets(char *s, int size);
int Vprintf(const char *format, va_list args);
int Vseek(long offset, int whence);
int Vtell() {return pos;}
void Vrewind() {pos=0;}
int Vflush() {return 0;}
};

/** this version owns the string object */
class StringFILE2: public StringFILE
{
SString string;
  public:
StringFILE2(const SString& s):StringFILE(string),string(s) {}
StringFILE2():StringFILE(string) {}
const SString& getString() {return string;}
};

class StringFileSystem: public VirtFileSystem
{
  public:
VirtFileSystem *chain;
StringFileSystem(VirtFileSystem *_chain):chain(_chain) {}
VirtFILE *Vfopen(const char* path,const char*mode);
int Vfexists(const char* path);
VirtDIR *Vopendir(const char* path);
static const char PREFIX[];
static bool isStringPath(const char* path);
};

#endif