////////////////////////////////////////////////////////////////////////////
//
//  Crytek Engine Source File.
//  Copyright (C), Crytek Studios, 2002.
// -------------------------------------------------------------------------
//  File name:   cryversion.h
//  Version:     v1.00
//  Created:     27/8/2003 by Timur.
//  Compilers:   Visual Studio.NET
//  Description: Defines File version structure.
// -------------------------------------------------------------------------
//  History:
//
////////////////////////////////////////////////////////////////////////////

#ifndef __cryversion_h__
#define __cryversion_h__

#if defined(LINUX)
#	include "string.h"
#	include "stdlib.h"
#	include "stdio.h"
#endif

//////////////////////////////////////////////////////////////////////////
/** This class keeps file version information.
*/
struct SFileVersion
{
	int v[4];

	SFileVersion() {
		v[0] = v[1] = v[2] = v[3] = 0;
	}
	SFileVersion( const int vers[] ) {
		v[0] = vers[0];
		v[1] = vers[1];
		v[2] = vers[2];
		v[3] = 1;
	}

	void	Set(const char *s)
	{
		v[0] = v[1] = v[2] = v[3] = 0;

		char t[50];	char* p;
		strcpy(t,s);

		if(!(p = strtok(t,"."))) return;
		v[3] = atoi(p);
		if(!(p = strtok(NULL,"."))) return;
		v[2] = atoi(p);		
		if(!(p = strtok(NULL,"."))) return;
		v[1] = atoi(p);		
		if(!(p = strtok(NULL,"."))) return;
		v[0] = atoi(p);
	}

	explicit SFileVersion( const char* s )
	{
		Set(s);
	}

	bool operator <( const SFileVersion &v2 ) const {
		if (v[3] < v2.v[3]) return true;
		if (v[3] > v2.v[3]) return false;

		if (v[2] < v2.v[2]) return true;
		if (v[2] > v2.v[2]) return false;

		if (v[1] < v2.v[1]) return true;
		if (v[1] > v2.v[1]) return false;

		if (v[0] < v2.v[0]) return true;
		if (v[0] > v2.v[0]) return false;
		return false;
	}
	bool operator ==( const SFileVersion &v1 ) const {
		if (v[0] == v1.v[0] && v[1] == v1.v[1] &&
			v[2] == v1.v[2] && v[3] == v1.v[3]) return true;
		return false;
	}
	bool operator >( const SFileVersion &v1) const {
		return !(*this < v1);
	}
	bool operator >=( const SFileVersion &v1) const {
		return (*this == v1) || (*this > v1);
	}
	bool operator <=( const SFileVersion &v1) const {
		return (*this == v1) || (*this < v1);
	}

	int& operator[](int i)       { return v[i];}
	int  operator[](int i) const { return v[i];} 

	void ToShortString( char *s ) const
	{
		sprintf( s,"%d.%d.%d",v[2],v[1],v[0] );
	}

	void ToString( char *s ) const
	{
		sprintf( s,"%d.%d.%d.%d",v[3],v[2],v[1],v[0] );
	}
};

#endif // __cryversion_h__