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/*
   core/cvar.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#include "core/cvar.h"
#include "sys/sys.h"

#include <map>
#include <iostream>
#include <string>
#include <sstream>
#include <iomanip>


namespace core
{

Cvar				*Cvar::con_ansi = 0;
Cvar				*Cvar::sv_dedicated = 0;
Cvar				*Cvar::sv_private = 0;
Cvar				*Cvar::sv_framerate = 0;
Cvar				*Cvar::sv_name = 0;
Cvar				*Cvar::sv_description = 0;
Cvar				*Cvar::sv_password = 0;
Cvar				*Cvar::sv_arraysize = 0;

Cvar				*Cvar::cl_prediction = 0;

Cvar				*Cvar::net_host = 0;
Cvar				*Cvar::net_port = 0;
Cvar				*Cvar::net_maxclients = 0;
Cvar				*Cvar::net_timeout = 0;
Cvar				*Cvar::net_framerate = 0;

Cvar::Registry 			Cvar::cvar_registry;

Cvar::Cvar(const char *name, const unsigned int flags) : cvar_name(), cvar_info(), cvar_str()
{
	cvar_flags = flags;
	cvar_name.assign(name);
}

void Cvar::set_info(const char *info)
{
	if (info)
		cvar_info.assign(info);
}

Cvar & Cvar::operator=(const std::string &other)
{
	cvar_str = other;
	std::stringstream s(cvar_str);
	if (!(s >> cvar_value))
		cvar_value = cvar_str.size();
	return (*this);
}

Cvar & Cvar::operator=(const char *other)
{
	std::string value(other);
	return (this->operator=(value));
}

Cvar & Cvar::operator=(float other)
{
	std::stringstream s;
	s << other;
	s >> cvar_str;
	cvar_value = other;
	return (*this);
}

Cvar* Cvar::get(const char *name, const char *value, const unsigned int flags)
{
	Cvar *c = find(name);
	if (c) {
		//con_debug << "get " << name << " already exist with value " << cvar->str() << std::endl;
	} else {
		//con_debug << "get " << name << " " << value << std::endl;
		c = new Cvar(name, flags);
		cvar_registry[c->name()] = c;
		(*c) = value;
	}
	c->cvar_flags |= flags;
	return c;
}

Cvar* Cvar::get(const char *name, float value, const unsigned int flags)
{
	Cvar *c = find(name);
	if (c) {
		//con_debug << "get " << name << " already exist with value " << cvar->str() << std::endl;
	} else {
		//con_debug << "get " << name << " " << value << std::endl;
		c = new Cvar(name, flags);
		cvar_registry[c->name()] = c;
		(*c) = value;
	}
	c->cvar_flags |= flags;
	return c;
}

Cvar* Cvar::set(const char *name, const char *value, const unsigned int flags)
{
	Cvar *c = find(name);
	if (!c) {
		c = new Cvar(name, flags);
		cvar_registry[c->name()] = c;
	}
	(*c) = value;
	c->cvar_flags = flags;

	//con_debug << "set " << name << " " << cvar->str() << std::endl;
	return c;
}

Cvar* Cvar::set(const char *name, float value, unsigned int flags)
{
	Cvar *c = find(name);
	if (!c) {
		c = new Cvar(name, flags);
		cvar_registry[c->name()] = c;
	}
	(*c) = value;
	c->cvar_flags = flags;

	//con_debug << "set " << name << " " << cvar->str() << std::endl;
	return c;
}

void Cvar::unset(std::string const &name)
{
	Cvar *c = find(name);
	if (c) {
		con_debug << "unset " << name << std::endl;
		cvar_registry.erase(name);
		delete c;
	}
}

void Cvar::unset(const char *name)
{
	unset(std::string(name));
}

Cvar *Cvar::find(std::string const &name)
{
	Registry::iterator it = cvar_registry.find(name);
	if (it == cvar_registry.end())
		return 0;
	else
		return (*it).second;
}

Cvar *Cvar::find(const char *name)
{
	std::string s(name);
	return(find(s));
}

void Cvar::list()
{
	con_print << "Flags: A=Archive G=Game R=ReadOnly" << std::endl;

	Registry::iterator it;
	for (it = cvar_registry.begin(); it != cvar_registry.end(); it++) {
		std::string typeindicator;
		if (((*it).second->flags() & Archive) == Archive)
			typeindicator += 'A';
		else
			typeindicator += ' ';	
		
		if (((*it).second->flags() & Game) == Game)
			typeindicator += 'G';
		else
			typeindicator += ' ';

		if (((*it).second->flags() & ReadOnly) == ReadOnly)
			typeindicator += 'R';
		else
			typeindicator += ' ';

		con_print << " " << typeindicator << 
			" " << (*it).first << " " << (*it).second->str() << " ^N" << (*it).second->info() << std::endl;
	}
	con_print << cvar_registry.size() << " registered variables" << std::endl;
}

}