/* Copyright (C) 2007 The SpringLobby Team. All rights reserved. */

#include <wx/tokenzr.h>
#include <wx/image.h>
#include <sstream>
#include <wx/timer.h>

#include "ibattle.h"
#include "utils/debug.h"
#include "utils/conversion.h"
#include "utils/math.h"
#include "uiutils.h"
#include "settings.h"
#include "ui.h" //only required for preset stuff
#include "spring.h"
#include "springunitsynclib.h"
#include "springlobbyapp.h"

#include <list>
#include <algorithm>
#include <cmath>
#include <set>

const unsigned int TIMER_ID         = 102;

IBattle::IBattle():
  m_map_loaded(false),
  m_mod_loaded(false),
  m_map_exists(false),
  m_mod_exists(false),
  m_previous_local_mod_name( wxEmptyString ),
  m_ingame(false),
  m_generating_script(false),
  m_players_ready(0),
  m_players_sync(0),
  m_players_ok(0),
  m_is_self_in(false),
	m_timer ( 0 )
{
}


IBattle::~IBattle()
{
	if ( m_is_self_in ) usync().UnSetCurrentMod();
	if ( m_timer ) m_timer->Stop();
	delete m_timer;
}

bool IBattle::IsSynced()
{
    LoadMod();
    LoadMap();
    bool synced = true;
    if ( !m_host_map.hash.IsEmpty() ) synced = synced && (m_local_map.hash == m_host_map.hash);
    if ( !m_host_map.name.IsEmpty() ) synced = synced && (m_local_map.name == m_host_map.name);
    if ( !m_host_mod.hash.IsEmpty() ) synced = synced && (m_local_mod.hash == m_host_mod.hash);
    if ( !m_host_mod.name.IsEmpty() ) synced = synced && (m_local_mod.name == m_host_mod.name);
    return synced;
}

std::vector<wxColour> &IBattle::GetFixColoursPalette( int numteams ) const
{
    return GetBigFixColoursPalette( numteams );
}

wxColour IBattle::GetFixColour(int i) const
{
		int size = m_teams_sizes.size();
    std::vector<wxColour> palette = GetFixColoursPalette( size );
		return palette[i];
}

int IBattle::GetPlayerNum( const User& user ) const
{
    for (user_map_t::size_type i = 0; i < GetNumUsers(); i++)
    {
        if ( &GetUser(i) == &user ) return i;
    }
    ASSERT_EXCEPTION(false, _T("The player is not in this game.") );
    return -1;
}

#include <algorithm>
class DismissColor {
    protected:
        typedef std::vector<wxColour>
            ColorVec;
        const ColorVec& m_other;

    public:
        DismissColor( const ColorVec& other )
            : m_other( other )
        {}

    bool operator() ( wxColor to_check ) {
        return std::find ( m_other.begin(), m_other.end(), to_check ) != m_other.end();
    }
};

class AreColoursSimilarProxy {
    int m_mindiff;

    public:
        AreColoursSimilarProxy( int mindiff )
            : m_mindiff ( mindiff )
        {}

        bool operator() ( wxColor a, wxColor b ) {
                return AreColoursSimilar( a, b, m_mindiff );
        }
};

wxColour IBattle::GetFreeColour( User * ) const
{
    typedef std::vector<wxColour>
        ColorVec;

    ColorVec current_used_colors;
    for ( user_map_t::size_type i = 0; i < GetNumUsers(); ++i ) {
        UserBattleStatus& bs = GetUser( i ).BattleStatus();
        current_used_colors.push_back( bs.colour );
    }

    int inc = 1;
    while ( true ) {
        ColorVec fixcolourspalette = GetFixColoursPalette( m_teams_sizes.size() + inc++ );

        ColorVec::iterator fixcolourspalette_new_end = std::unique( fixcolourspalette.begin(), fixcolourspalette.end(), AreColoursSimilarProxy( 20 ) );

        fixcolourspalette_new_end = std::remove_if( fixcolourspalette.begin(), fixcolourspalette.end(), DismissColor( current_used_colors ) );

        if ( fixcolourspalette_new_end != fixcolourspalette.begin() )
            return (*fixcolourspalette.begin());
    }
}

wxColour IBattle::GetFreeColour( User &for_whom ) const
{
    return GetFreeColour( &for_whom );
}


wxColour IBattle::GetNewColour() const
{
    return GetFreeColour();
}

int IBattle::ColourDifference(const wxColour &a, const wxColour &b)  const// returns max difference of r,g,b.
{
    return std::max(abs(a.Red()-b.Red()),std::max(abs(a.Green()-b.Green()),abs(a.Blue()-b.Blue())));

}

int IBattle::GetFreeTeam( bool excludeme )
{
    int lowest = 0;
    bool changed = true;
    while ( changed )
    {
        changed = false;
        for ( user_map_t::size_type i = 0; i < GetNumUsers(); i++ )
        {
						User& user = GetUser( i );
            if ( ( &user == &GetMe() ) && excludeme ) continue;
            if ( user.BattleStatus().spectator ) continue;
            if ( user.BattleStatus().team == lowest )
            {
                lowest++;
                changed = true;
            }
        }
    }
    return lowest;
}

int IBattle::GetClosestFixColour(const wxColour &col, const std::vector<int> &excludes, int difference) const
{
    std::vector<wxColour> palette = GetFixColoursPalette( m_teams_sizes.size() + 1 );
    int result=0;
    int t1=palette.size();
    int t2=excludes.size();
    wxLogMessage(_T("GetClosestFixColour %d %d"),t1,t2);
    for (size_t i=0;i<palette.size();++i)
    {
        if ((i>=excludes.size()) || (!excludes[i]))
        {
            if (AreColoursSimilar( palette[i],col, difference ))
            {
                return i;
            }
        }
    }
    return result;
}


void IBattle::SendHostInfo( HostInfo /*unused*/ )
{
}

void IBattle::SendHostInfo( const wxString& /*unused*/ )
{
}

void IBattle::Update ( const wxString& /*unused*/)
{
}

User& IBattle::OnUserAdded( User& user )
{
    UserList::AddUser( user );
		UserBattleStatus& bs = user.BattleStatus();
    bs.spectator = false;
    bs.ready = false;
    bs.sync = SYNC_UNKNOWN;
    if ( !bs.IsBot() && IsFounderMe() && GetBattleType() == BT_Played )
    {
			bs.team = GetFreeTeam( &user == &GetMe() );
			bs.ally = GetFreeAlly( &user == &GetMe() );
			bs.colour = GetFreeColour( user );
    }
    if ( IsFounderMe() && ( ( bs.pos.x < 0 ) || ( bs.pos.y < 0 ) ) )
    {
    	 UserPosition& pos = bs.pos;
    	 pos = GetFreePosition();
    	 UserPositionChanged( user );
    }
	if ( !bs.spectator )
	{
		PlayerJoinedAlly( bs.ally );
		PlayerJoinedTeam( bs.team );
	}
	if ( bs.spectator && IsFounderMe() ) m_opts.spectators++;
	if ( !bs.spectator && !bs.IsBot() )
	{
		if ( bs.ready ) m_players_ready++;
		if ( bs.sync) m_players_sync++;
		if ( !bs.ready || !bs.sync ) m_ready_up_map[user.GetNick()] = time(0);
		if ( bs.ready && bs.sync ) m_players_ok++;
	}
    return user;
}

User& IBattle::OnBotAdded( const wxString& nick, const UserBattleStatus& bs )
{
		m_internal_bot_list[nick] = User( nick );
		User& user = m_internal_bot_list[nick];
		user.UpdateBattleStatus( bs );
		User& usr = OnUserAdded( user );
		return usr;
}

unsigned int IBattle::GetNumBots() const
{
		return m_internal_bot_list.size();
}

unsigned int IBattle::GetNumPlayers() const
{
		return GetNumUsers() - GetNumBots();
}

unsigned int IBattle::GetNumActivePlayers() const
{
		return GetNumPlayers() - m_opts.spectators;
}

void IBattle::OnUserBattleStatusUpdated( User &user, UserBattleStatus status )
{

    UserBattleStatus previousstatus = user.BattleStatus();

    user.UpdateBattleStatus( status );
	unsigned int oldspeccount = m_opts.spectators;
	m_opts.spectators = 0;
	m_players_sync = 0;
	m_players_ready = 0;
	m_players_ok = 0;
	m_teams_sizes.clear();
	m_ally_sizes.clear();
	for ( unsigned int i = 0; i < GetNumUsers(); i++ )
	{
		User& loopuser = GetUser( i );
		UserBattleStatus& loopstatus = loopuser.BattleStatus();
		if ( loopstatus.spectator ) m_opts.spectators++;
		if ( !loopstatus.IsBot() )
		{
			if ( !loopstatus.spectator )
			{
				if ( loopstatus.ready && loopstatus.spectator ) m_players_ready++;
				if ( loopstatus.sync ) m_players_sync++;
				if ( loopstatus.ready && loopstatus.sync ) m_players_ok++;
				PlayerJoinedTeam( loopstatus.team );
				PlayerJoinedAlly( loopstatus.ally );
			}
		}
	}
	if ( oldspeccount != m_opts.spectators  )
	{
		if ( IsFounderMe() ) SendHostInfo( HI_Spectators );
	}
	if ( !status.IsBot() )
	{
		if ( ( status.ready && status.sync ) || status.spectator )
		{
			std::map<wxString, time_t>::iterator itor = m_ready_up_map.find( user.GetNick() );
			if ( itor != m_ready_up_map.end() )
			{
				m_ready_up_map.erase( itor );
			}
		}
		if ( ( !status.ready || !status.sync ) && !status.spectator )
		{
			std::map<wxString, time_t>::iterator itor = m_ready_up_map.find( user.GetNick() );
			if ( itor == m_ready_up_map.end() )
			{
				m_ready_up_map[user.GetNick()] = time(0);
			}
		}
	}
}

bool IBattle::ShouldAutoStart() const
{
	if ( GetInGame() ) return false;
	if ( !IsLocked() && ( GetNumActivePlayers() < m_opts.maxplayers ) ) return false; // proceed checking for ready & symc players only if the battle is full or locked
	if ( !IsEveryoneReady() ) return false;
	return true;
}

void IBattle::OnUserRemoved( User& user )
{
    UserBattleStatus& bs = user.BattleStatus();
    if ( !bs.spectator )
    {
        PlayerLeftTeam( bs.team );
        PlayerLeftAlly( bs.ally );
    }
	if ( !bs.spectator && !bs.IsBot() )
	{
		if ( bs.ready ) m_players_ready--;
		if ( bs.sync ) m_players_sync--;
		if ( bs.ready && bs.sync ) m_players_ok--;
	}
    if ( IsFounderMe() && bs.spectator )
    {
        m_opts.spectators--;
        SendHostInfo( HI_Spectators );
    }
    if ( &user == &GetMe() )
    {
        OnSelfLeftBattle();
    }
    UserList::RemoveUser( user.GetNick() );
    if ( !bs.IsBot() )
        user.SetBattle( 0 );
    else
    {
    	UserVecIter itor = m_internal_bot_list.find( user.GetNick() );
        if ( itor != m_internal_bot_list.end() )
        {
            m_internal_bot_list.erase( itor );
        }
    }
}


bool IBattle::IsEveryoneReady() const
{
	for ( unsigned int i = 0; i < GetNumPlayers(); i++ )
	{
		User& usr = GetUser( i );
		UserBattleStatus& status = usr.BattleStatus();
		if ( status.IsBot() ) continue;
		if ( status.spectator ) continue;
		if ( &usr == &GetMe() ) continue;
		if ( !status.ready ) return false;
		if ( !status.sync ) return false;
	}
	return true;
}



void IBattle::AddStartRect( unsigned int allyno, unsigned int left, unsigned int top, unsigned int right, unsigned int bottom )
{
    BattleStartRect sr;

    sr.ally = allyno;
    sr.left = left;
    sr.top = top;
    sr.right = right;
    sr.bottom = bottom;
    sr.toadd = true;
    sr.todelete = false;
    sr.toresize = false;
    sr.exist = true;

    m_rects[allyno] = sr;
}



void IBattle::RemoveStartRect( unsigned int allyno )
{
    std::map<unsigned int,BattleStartRect>::iterator rect_it = m_rects.find(allyno);
	if( rect_it == m_rects.end() )
		return;

	rect_it->second.todelete = true;
    //BattleStartRect sr = m_rects[allyno];
    //sr.todelete = true;
    //m_rects[allyno] = sr;
}


void IBattle::ResizeStartRect( unsigned int allyno )
{
    std::map<unsigned int,BattleStartRect>::iterator rect_it = m_rects.find(allyno);
	if( rect_it == m_rects.end() )
		return;

	rect_it->second.toresize = true;
    //BattleStartRect sr = m_rects[allyno];
    //&&sr.toresize = true;
    //m_rects[allyno] = sr;
}


void IBattle::StartRectRemoved( unsigned int allyno )
{
	std::map<unsigned int,BattleStartRect>::iterator rect_it = m_rects.find(allyno);
	if( rect_it == m_rects.end() )
		return;

	if ( rect_it->second.todelete ) m_rects.erase(allyno);
}


void IBattle::StartRectResized( unsigned int allyno )
{
    std::map<unsigned int,BattleStartRect>::iterator rect_it = m_rects.find(allyno);
	if( rect_it == m_rects.end() )
		return;

	rect_it->second.toresize = false;
    //BattleStartRect sr = m_rects[allyno];
    //sr.toresize = false;
    //m_rects[allyno] = sr;
}


void IBattle::StartRectAdded( unsigned int allyno )
{
    std::map<unsigned int,BattleStartRect>::iterator rect_it = m_rects.find(allyno);
	if( rect_it == m_rects.end() )
		return;

	rect_it->second.toadd = false;
    //BattleStartRect sr = m_rects[allyno];
    //sr.toadd = false;
    //m_rects[allyno] = sr;
}


BattleStartRect IBattle::GetStartRect( unsigned int allyno ) const
{
	std::map<unsigned int,BattleStartRect>::const_iterator rect_it = m_rects.find(allyno);
	if( rect_it != m_rects.end() )
		return (*rect_it).second;
	return BattleStartRect();
}

//total number of start rects
unsigned int IBattle::GetNumRects() const
{
    return m_rects.size();
}

//key of last start rect in the map
unsigned int IBattle::GetLastRectIdx() const
{
	if(GetNumRects() > 0)
		return m_rects.rbegin()->first;

	return 0;

}

//return  the lowest currently unused key in the map of rects.
unsigned int IBattle::GetNextFreeRectIdx() const
{
	//check for unused allyno keys
	for(unsigned int i = 0; i <= GetLastRectIdx(); i++)
	{
		if(!GetStartRect(i).IsOk())
			return i;
	}
	return GetNumRects(); //if all rects are in use, or no elements exist, return first possible available allyno.
}

void IBattle::ClearStartRects()
{
    m_rects.clear();
}

void IBattle::ForceSide( User& user, int side )
{
	if ( IsFounderMe() || user.BattleStatus().IsBot() )
	{
		 user.BattleStatus().side = side;
	}
}

void IBattle::ForceTeam( User& user, int team )
{
  if ( IsFounderMe() || user.BattleStatus().IsBot() )
  {
		if ( !user.BattleStatus().spectator )
		{
			PlayerLeftTeam( user.BattleStatus().team );
			PlayerJoinedTeam( team );
		}
		user.BattleStatus().team = team;
  }
}


void IBattle::ForceAlly( User& user, int ally )
{

  if ( IsFounderMe() || user.BattleStatus().IsBot() )
  {
		if ( !user.BattleStatus().spectator )
		{
			PlayerLeftAlly( user.BattleStatus().ally );
			PlayerJoinedAlly( ally );
		}
		user.BattleStatus().ally = ally;
  }

}


void IBattle::ForceColour( User& user, const wxColour& col )
{
  if ( IsFounderMe() || user.BattleStatus().IsBot() )
		{
			 user.BattleStatus().colour = col;
		}

}

void IBattle::PlayerJoinedTeam( int team )
{
	std::map<int, int>::iterator itor = m_teams_sizes.find( team );
	if ( itor == m_teams_sizes.end() ) m_teams_sizes[team] = 1;
	else m_teams_sizes[team] = m_teams_sizes[team] + 1;
}

void IBattle::PlayerJoinedAlly( int ally )
{
	std::map<int, int>::iterator iter = m_ally_sizes.find( ally );
	if ( iter == m_ally_sizes.end() ) m_ally_sizes[ally] = 1;
	else m_ally_sizes[ally] = m_ally_sizes[ally] + 1;
}

void IBattle::PlayerLeftTeam( int team )
{
	std::map<int, int>::iterator itor = m_teams_sizes.find( team );
	if ( itor != m_teams_sizes.end() )
	{
		 itor->second = itor->second -1;
		if ( itor->second == 0 )
		{
			m_teams_sizes.erase( itor );
		}
	}
}

void IBattle::PlayerLeftAlly( int ally )
{
	std::map<int, int>::iterator iter = m_ally_sizes.find( ally );
	if ( iter != m_ally_sizes.end() )
	{
		iter->second = iter->second - 1;
		if ( iter->second == 0 )
		{
			m_ally_sizes.erase( iter );
		}
	}
}

void IBattle::ForceSpectator( User& user, bool spectator )
{
		if ( IsFounderMe() || user.BattleStatus().IsBot() )
		{
			UserBattleStatus& status = user.BattleStatus();

			if ( !status.spectator ) // leaving spectator status
			{
				PlayerJoinedTeam( status.team );
				PlayerJoinedAlly( status.ally );
				if ( status.ready && !status.IsBot() ) m_players_ready++;
			}

			if (spectator) // entering spectator status
			{
				PlayerLeftTeam( status.team );
				PlayerLeftAlly( status.ally );
				if ( status.ready && !status.IsBot() ) m_players_ready--;
			}

			if ( IsFounderMe() )
			{
				if ( status.spectator != spectator )
				{
					if ( spectator )
					{
							m_opts.spectators++;
					}
					else
					{
							m_opts.spectators--;
					}
					SendHostInfo( HI_Spectators );
				}
			}
			user.BattleStatus().spectator = spectator;
		}
}

void IBattle::SetHandicap( User& user, int handicap)
{
		if ( IsFounderMe() || user.BattleStatus().IsBot() )
		{
			 user.BattleStatus().handicap = handicap;
		}
}


void IBattle::KickPlayer( User& user )
{
		if ( IsFounderMe() || user.BattleStatus().IsBot() )
		{
			 OnUserRemoved( user );
		}
}

int IBattle::GetFreeAlly( bool excludeme ) const
{
  int lowest = 0;
  bool changed = true;
  while ( changed )
   {
    changed = false;
    for ( unsigned int i = 0; i < GetNumUsers(); i++ )
    {
      User& user = GetUser( i );
      if ( ( &user == &GetMe() ) && excludeme ) continue;
      if ( user.BattleStatus().spectator ) continue;
      if ( user.BattleStatus().ally == lowest )
      {
        lowest++;
        changed = true;
      }
    }
  }
  return lowest;
}

UserPosition IBattle::GetFreePosition()
{
	UserPosition ret;
  UnitSyncMap map = LoadMap();
  for ( int i = 0; i < int(map.info.positions.size()); i++ )
	{
    bool taken = false;
    for ( unsigned int bi = 0; bi < GetNumUsers(); bi++ )
    {
      User& user = GetUser( bi );
      UserBattleStatus& status = user.BattleStatus();
      if ( status.spectator ) continue;
      if ( ( map.info.positions[i].x == status.pos.x ) && ( map.info.positions[i].y == status.pos.y ) )
      {
        taken = true;
        break;
      }
    }
    if ( !taken )
    {
      ret.x = clamp(map.info.positions[i].x, 0, map.info.width);
      ret.y = clamp(map.info.positions[i].y, 0, map.info.height);
      return ret;
    }
  }
  ret.x = map.info.width / 2;
  ret.y = map.info.height / 2;
  return ret;
}


void IBattle::SetHostMap(const wxString& mapname, const wxString& hash)
{
  if ( mapname != m_host_map.name || hash != m_host_map.hash )
  {
    m_map_loaded = false;
    m_host_map.name = mapname;
    m_host_map.hash = hash;
	if ( !m_host_map.hash.IsEmpty() )
		m_map_exists = usync().MapExists( m_host_map.name, m_host_map.hash );
	else
		m_map_exists = usync().MapExists( m_host_map.name );
	#ifndef __WXMSW__ //!TODO why not on win?
		if ( m_map_exists && !spring().IsRunning() )
			usync().PrefetchMap( m_host_map.name );
	#endif
  }
}


void IBattle::SetLocalMap(const UnitSyncMap& map)
{
  if ( map.name != m_local_map.name || map.hash != m_local_map.hash ) {
    m_local_map = map;
    m_map_loaded = true;
	if ( !m_host_map.hash.IsEmpty() )
		m_map_exists = usync().MapExists( m_host_map.name, m_host_map.hash );
	else
		m_map_exists = usync().MapExists( m_host_map.name );
    #ifndef __WXMSW__
		if ( m_map_exists && !spring().IsRunning() )
			usync().PrefetchMap( m_host_map.name );
    #endif
    if ( IsFounderMe() ) // save all rects infos
    {

    }
  }
}


const UnitSyncMap& IBattle::LoadMap()
{

  if ( !m_map_loaded ) {
    try {
      ASSERT_EXCEPTION( m_map_exists, _T("Map does not exist.") );
      m_local_map = usync().GetMapEx( m_host_map.name );
	  bool options_loaded = CustomBattleOptions().loadOptions( OptionsWrapper::MapOption, m_host_map.name );
	  ASSERT_EXCEPTION( options_loaded, _T("couldn't load the map options") );
      m_map_loaded = true;

    } catch (...) {}
  }
  return m_local_map;
}


wxString IBattle::GetHostMapName() const
{
  return m_host_map.name;
}


wxString IBattle::GetHostMapHash() const
{
  return m_host_map.hash;
}


void IBattle::SetHostMod( const wxString& modname, const wxString& hash )
{
  if ( m_host_mod.name != modname || m_host_mod.hash != hash )
  {
    m_mod_loaded = false;
    m_host_mod.name = modname;
    m_host_mod.hash = hash;
    if ( !m_host_mod.hash.IsEmpty() ) m_mod_exists = usync().ModExists( m_host_mod.name, m_host_mod.hash );
    else m_mod_exists = usync().ModExists( m_host_mod.name );
  }
}


void IBattle::SetLocalMod( const UnitSyncMod& mod )
{
  if ( mod.name != m_local_mod.name || mod.hash != m_local_mod.hash )
  {
    m_previous_local_mod_name = m_local_mod.name;
    m_local_mod = mod;
    m_mod_loaded = true;
    if ( !m_host_mod.hash.IsEmpty() ) m_mod_exists = usync().ModExists( m_host_mod.name, m_host_mod.hash );
    else m_mod_exists = usync().ModExists( m_host_mod.name );
  }
}


const UnitSyncMod& IBattle::LoadMod()
{
  if ( !m_mod_loaded )
   {
    try {
      ASSERT_EXCEPTION( m_mod_exists, _T("Mod does not exist.") );
      m_local_mod = usync().GetMod( m_host_mod.name );
	  bool options_loaded = CustomBattleOptions().loadOptions( OptionsWrapper::ModOption, m_host_mod.name );
	  ASSERT_EXCEPTION( options_loaded, _T("couldn't load the mod options") );
      m_mod_loaded = true;
    } catch (...) {}
  }
  return m_local_mod;
}


wxString IBattle::GetHostModName() const
{
  return m_host_mod.name;
}


wxString IBattle::GetHostModHash() const
{
  return m_host_mod.hash;
}


bool IBattle::MapExists() const
{
  return m_map_exists;
  //return usync().MapExists( m_map_name, m_map.hash );
}


bool IBattle::ModExists() const
{
  return m_mod_exists;
  //return usync().ModExists( m_mod_name );
}



void IBattle::RestrictUnit( const wxString& unitname, int count )
{
  m_restricted_units[ unitname ] = count;
}


void IBattle::UnrestrictUnit( const wxString& unitname )
{
  std::map<wxString,int>::iterator pos = m_restricted_units.find( unitname );
  if ( pos == m_restricted_units.end() ) return;
  m_restricted_units.erase( pos );
}


void IBattle::UnrestrictAllUnits()
{
  m_restricted_units.clear();
}


std::map<wxString,int> IBattle::RestrictedUnits() const
{
  return m_restricted_units;
}

void IBattle::OnSelfLeftBattle()
{
	if ( m_timer ) m_timer->Stop();
	delete m_timer;
	m_timer = 0;
    m_is_self_in = false;
	for( size_t j = 0; j < GetNumUsers(); ++j  )
	{
		User& u = GetUser( j );
		if ( u.GetBattleStatus().IsBot() )
		{
			OnUserRemoved( u );
			ui().OnUserLeftBattle( *this, u );
			j--;
		}
	}
    ClearStartRects();
    m_teams_sizes.clear();
    m_ally_sizes.clear();
    m_players_ready = 0;
    m_players_sync = 0;
	m_players_ok = 0;
	usync().UnSetCurrentMod(); //left battle
}

void IBattle::OnUnitsyncReloaded( GlobalEvents::GlobalEventData /*data*/ )
{
  if ( !m_host_mod.hash.IsEmpty() ) m_mod_exists = usync().ModExists( m_host_mod.name, m_host_mod.hash);
  else m_mod_exists = usync().ModExists( m_host_mod.name );
  if ( !m_host_map.hash.IsEmpty() )  m_map_exists = usync().MapExists( m_host_map.name, m_host_map.hash );
  else  m_map_exists = usync().MapExists( m_host_map.name );
}



static wxString FixPresetName( const wxString& name )
{
  // look name up case-insensitively
  const wxArrayString& presetList = sett().GetPresetList();
  int index = presetList.Index( name, false /*case insensitive*/ );
  if ( index == -1 ) return _T("");

  // set preset to the actual name, with correct case
  return presetList[index];
}


bool IBattle::LoadOptionsPreset( const wxString& name )
{
  wxString preset = FixPresetName(name);
  if (preset == _T("")) return false; //preset not found
  m_preset = preset;

  for ( unsigned int i = 0; i < OptionsWrapper::LastOption; i++)
  {
    std::map<wxString,wxString> options = sett().GetHostingPreset( m_preset, i );
    if ( (OptionsWrapper::GameOption)i != OptionsWrapper::PrivateOptions )
    {
      for ( std::map<wxString,wxString>::iterator itor = options.begin(); itor != options.end(); itor++ )
      {
            wxLogWarning( itor->first + _T(" ::: ") + itor->second );
            CustomBattleOptions().setSingleOption( itor->first, itor->second, (OptionsWrapper::GameOption)i );
      }
    }
    else
    {
      if ( !options[_T("mapname")].IsEmpty() )
      {
        if ( usync().MapExists( options[_T("mapname")] ) ) {
            UnitSyncMap map = usync().GetMapEx( options[_T("mapname")] );
            SetLocalMap( map );
            SendHostInfo( HI_Map );
        }
        else if ( !ui().OnPresetRequiringMap( options[_T("mapname")] ) ) {
            //user didn't want to download the missing map, so set to empty to not have it tried to be loaded again
            options[_T("mapname")] = _T("");
            sett().SetHostingPreset( m_preset, i, options );
        }
      }

		for( unsigned int j = 0; j <= GetLastRectIdx(); ++j ) {
			if ( GetStartRect( j ).IsOk() )
				RemoveStartRect(j); // remove all rects that might come from map presets
		}
		SendHostInfo( IBattle::HI_StartRects );

      unsigned int rectcount = s2l( options[_T("numrects")] );
      for ( unsigned int loadrect = 0; loadrect < rectcount; loadrect++)
      {
        int ally = s2l(options[_T("rect_") + TowxString(loadrect) + _T("_ally")]);
        if ( ally == 0 ) continue;
        AddStartRect( ally - 1, s2l(options[_T("rect_") + TowxString(loadrect) + _T("_left")]), s2l(options[_T("rect_") + TowxString(loadrect) + _T("_top")]), s2l(options[_T("rect_") + TowxString(loadrect) + _T("_right")]), s2l(options[_T("rect_") + TowxString(loadrect) + _T("_bottom")]) );
      }
      SendHostInfo( HI_StartRects );

      wxStringTokenizer tkr( options[_T("restrictions")], _T('\t') );
      m_restricted_units.clear();
      while( tkr.HasMoreTokens() )
      {
      	wxString unitinfo = tkr.GetNextToken();
      	RestrictUnit( unitinfo.BeforeLast(_T('=')), s2l( unitinfo.AfterLast(_T('=')) ) );
      }
      SendHostInfo( HI_Restrictions );
      Update( wxString::Format( _T("%d_restrictions"), OptionsWrapper::PrivateOptions ) );

    }
  }
  SendHostInfo( HI_Send_All_opts );
  ui().ReloadPresetList();
  return true;
}


void IBattle::SaveOptionsPreset( const wxString& name )
{
  m_preset = FixPresetName(name);
  if (m_preset == _T("")) m_preset = name; //new preset

  for ( int i = 0; i < (int)OptionsWrapper::LastOption; i++)
  {
    if ( (OptionsWrapper::GameOption)i != OptionsWrapper::PrivateOptions )
    {
      sett().SetHostingPreset( m_preset, (OptionsWrapper::GameOption)i, CustomBattleOptions().getOptionsMap( (OptionsWrapper::GameOption)i ) );
    }
    else
    {
      std::map<wxString,wxString> opts;
      opts[_T("mapname")] = GetHostMapName();
      unsigned int validrectcount = 0;
      if ( s2l (CustomBattleOptions().getSingleValue( _T("startpostype"), OptionsWrapper::EngineOption ) ) == ST_Choose )
      {
        unsigned int boxcount = GetLastRectIdx();
        for ( unsigned int boxnum = 0; boxnum <= boxcount; boxnum++ )
        {
          BattleStartRect rect = GetStartRect( boxnum );
          if ( rect.IsOk() )
          {
            opts[_T("rect_") + TowxString(validrectcount) + _T("_ally")] = TowxString( rect.ally + 1 );
            opts[_T("rect_") + TowxString(validrectcount) + _T("_left")] = TowxString( rect.left );
            opts[_T("rect_") + TowxString(validrectcount) + _T("_top")] = TowxString( rect.top );
            opts[_T("rect_") + TowxString(validrectcount) + _T("_bottom")] = TowxString( rect.bottom );
            opts[_T("rect_") + TowxString(validrectcount) + _T("_right")] = TowxString( rect.right );
            validrectcount++;
          }
        }
      }
      opts[_T("numrects")] = TowxString( validrectcount );

      wxString restrictionsstring;
      for ( std::map<wxString, int>::iterator itor = m_restricted_units.begin(); itor != m_restricted_units.end(); itor++ )
      {
        restrictionsstring << itor->first << _T('=') << TowxString(itor->second) << _T('\t');
      }
      opts[_T("restrictions")] = restrictionsstring;

      sett().SetHostingPreset( m_preset, (OptionsWrapper::GameOption)i, opts );
    }
  }
  sett().SaveSettings();
  ui().ReloadPresetList();
}


wxString IBattle::GetCurrentPreset()
{
  return m_preset;
}


void IBattle::DeletePreset( const wxString& name )
{
  wxString preset = FixPresetName(name);
  if ( m_preset == preset ) m_preset = _T("");
  sett().DeletePreset( preset );
  ui().ReloadPresetList();
}

wxArrayString IBattle::GetPresetList()
{
  return sett().GetPresetList();
}

void IBattle::UserPositionChanged( const User& /*unused*/ )
{
}

void IBattle::AddUserFromDemo( User& user )
{
	user.BattleStatus().isfromdemo = true;
	m_internal_user_list[user.GetNick()] = user;
	UserList::AddUser( m_internal_user_list[user.GetNick()] );
}

void IBattle::SetIsProxy( bool value )
{
    m_opts.isproxy = value;
}

bool IBattle::IsProxy()
{
    return m_opts.isproxy;
}

bool IBattle::IsFounderMe()
{
    return ( ( m_opts.founder == GetMe().GetNick() ) || ( m_opts.isproxy  && !m_generating_script ) );
}

bool IBattle::IsFounder( const User& user ) const
{
    if ( UserExists( m_opts.founder ) ) {
    	try
    	{
        return &GetFounder() == &user;
			}catch(...){return false;}
    }
    else
        return false;
}

int IBattle::GetMyPlayerNum() const
{
    return GetPlayerNum( GetMe() );
}


void IBattle::LoadScriptMMOpts( const wxString& sectionname, const PDataList& node )
{
		if ( !node.ok() ) return;
    PDataList section ( node->Find(sectionname) );
    if ( !section.ok() ) return;
    OptionsWrapper& opts = CustomBattleOptions();
    for ( PNode n = section->First(); n != section->Last(); n = section->Next( n ) )
    {
				if ( !n.ok() ) continue;
        opts.setSingleOption( n->Name(), section->GetString( n->Name() ) );
    }
}

void IBattle::LoadScriptMMOpts( const PDataList& node )
{
		if ( !node.ok() ) return;
    OptionsWrapper& opts = CustomBattleOptions();
    typedef std::map<wxString,wxString> optMap;
    optMap options = opts.getOptionsMap(OptionsWrapper::EngineOption);
    for ( optMap::const_iterator i = options.begin(); i != options.end(); ++i)
    {
        opts.setSingleOption( i->first, node->GetString( i->first, i->second ) );
    }
}

//! (koshi) don't delete commented things please, they might be need in the future and i'm lazy
void IBattle::GetBattleFromScript( bool loadmapmod )
{

    BattleOptions opts;
    std::stringstream ss ( (const char *)GetScript().mb_str(wxConvUTF8) );// no need to convert wxstring-->std::string-->std::stringstream, convert directly.
    PDataList script( ParseTDF(ss) );

    PDataList replayNode ( script->Find(_T("GAME") ) );
    if ( replayNode.ok() )
    {

        wxString modname = replayNode->GetString( _T("GameType") );
        wxString modhash = replayNode->GetString( _T("ModHash") );
        if ( !modhash.IsEmpty() ) modhash = MakeHashUnsigned( modhash );
        SetHostMod( modname, modhash );

        //don't have the maphash, what to do?
        //ui download function works with mapname if hash is empty, so works for now
        wxString mapname    = replayNode->GetString( _T("MapName") );
			  wxString maphash    = replayNode->GetString( _T("MapHash") );
        if ( !maphash.IsEmpty() ) maphash = MakeHashUnsigned( maphash );
        SetHostMap( mapname, maphash );

//        opts.ip         = replayNode->GetString( _T("HostIP") );
//        opts.port       = replayNode->GetInt  ( _T("HostPort"), DEFAULT_EXTERNAL_UDP_SOURCE_PORT );
        opts.spectators = 0;

        int playernum = replayNode->GetInt  ( _T("NumPlayers"), 0);
        int usersnum = replayNode->GetInt  ( _T("NumUsers"), 0);
        if ( usersnum > 0 ) playernum = usersnum;
//        int allynum = replayNode->GetInt  ( _T("NumAllyTeams"), 1);
//        int teamnum = replayNode->GetInt  ( _T("NumTeams"), 1);



        wxArrayString sides;
        if ( loadmapmod )
        {
        	sides = usync().GetSides( modname );
        }

				IBattle::TeamVec parsed_teams = GetParsedTeamsVec();
				IBattle::AllyVec parsed_allies = GetParsedAlliesVec();

        //[PLAYERX] sections
        for ( int i = 0; i < playernum ; ++i )
        {
            PDataList player ( replayNode->Find( _T("PLAYER") + TowxString(i) ) );
            PDataList bot ( replayNode->Find( _T("AI") + TowxString(i) ) );
            if ( player.ok() || bot.ok() )
            {
								if ( bot.ok() ) player = bot;
                User user ( player->GetString( _T("Name") ), (player->GetString( _T("CountryCode")).Upper() ), 0);
                UserBattleStatus& status = user.BattleStatus();
                status.isfromdemo = true;
                status.spectator = player->GetInt( _T("Spectator"), 0 );
                opts.spectators += user.BattleStatus().spectator;
                status.team = player->GetInt( _T("Team") );
				if ( !status.spectator )
				{
					PlayerJoinedTeam( status.team );
				}
                status.sync = true;
                status.ready = true;
                if ( status.spectator ) m_opts.spectators++;
				else
				{
					if ( !bot.ok() )
					{
						if ( status.ready) m_players_ready++;
						if ( status.sync ) m_players_sync++;
						if ( status.sync && status.ready ) m_players_ok++;
					}
				}

                //! (koshi) changed this from ServerRankContainer to RankContainer
                user.Status().rank = (UserStatus::RankContainer)player->GetInt( _T("Rank"), -1 );

                if ( bot.ok() )
                {
                	status.aishortname = bot->GetString( _T("ShortName" ) );
                	status.aiversion = bot->GetString( _T("Version" ) );
                	int ownerindex = bot->GetInt( _T("Host" ) );
                	PDataList aiowner ( replayNode->Find( _T("PLAYER") + TowxString(ownerindex) ) );
                	if ( aiowner.ok() )
                	{
                		status.owner = aiowner->GetString( _T("Name") );
                	}
                }

                IBattle::TeamInfoContainer teaminfos = parsed_teams[user.BattleStatus().team];
                if ( !teaminfos.exist )
                {
									PDataList team( replayNode->Find( _T("TEAM") + TowxString( user.BattleStatus().team ) ) );
									if ( team.ok() )
									{
											teaminfos.exist = true;
											teaminfos.TeamLeader = team->GetInt( _T("TeamLeader"), 0 );
											teaminfos.StartPosX = team->GetInt( _T("StartPosX"), -1 );
											teaminfos.StartPosY = team->GetInt( _T("StartPosY"), -1 );
											teaminfos.AllyTeam = team->GetInt( _T("AllyTeam"), 0 );
											teaminfos.RGBColor = GetColorFromFloatStrng( team->GetString( _T("RGBColor") ) );
											teaminfos.SideName = team->GetString( _T("Side"), _T("") );
											teaminfos.Handicap = team->GetInt( _T("Handicap"), 0 );
											int sidepos = sides.Index( teaminfos.SideName );
											teaminfos.SideNum = sidepos;
											parsed_teams[ user.BattleStatus().team ] = teaminfos;
									}
                }
                if ( teaminfos.exist )
                {
										status.ally = teaminfos.AllyTeam;
										status.pos.x = teaminfos.StartPosX;
										status.pos.y = teaminfos.StartPosY;
										status.colour = teaminfos.RGBColor;
										status.handicap = teaminfos.Handicap;
										if ( !status.spectator )
										{
											PlayerJoinedAlly( status.ally );
										}
										if ( teaminfos.SideNum >= 0 ) status.side = teaminfos.SideNum;
										IBattle::AllyInfoContainer allyinfos = parsed_allies[user.BattleStatus().ally];
										if ( !allyinfos.exist )
										{
												PDataList ally( replayNode->Find( _T("ALLYTEAM") + TowxString( user.BattleStatus().ally ) ) );
												if ( ally.ok() )
												{
													allyinfos.exist = true;
													allyinfos.NumAllies = ally->GetInt( _T("NumAllies"), 0 );
													allyinfos.StartRectLeft = ally->GetInt( _T("StartRectLeft"), 0 );
													allyinfos.StartRectTop = ally->GetInt( _T("StartRectTop"), 0 );
													allyinfos.StartRectRight = ally->GetInt( _T("StartRectRight"), 0 );
													allyinfos.StartRectBottom = ally->GetInt( _T("StartRectBottom"), 0 );
													parsed_allies[ user.BattleStatus().ally ] = allyinfos;
													AddStartRect( user.BattleStatus().ally, allyinfos.StartRectTop, allyinfos.StartRectTop, allyinfos.StartRectRight, allyinfos.StartRectBottom );
												}
										}
                }

                AddUserFromDemo( user );
            }

        }
        SetParsedTeamsVec( parsed_teams );
        SetParsedAlliesVec( parsed_allies );

        //MMoptions, this'll fail unless loading map/mod into wrapper first
        if ( loadmapmod )
        {
					LoadScriptMMOpts( _T("mapoptions"), replayNode );
					LoadScriptMMOpts( _T("modoptions"), replayNode );
        }

        opts.maxplayers = playernum ;

    }
    SetBattleOptions( opts );
}


