#include "../../chat/user.h"
#include "../../chat/room.h"

/*
 gcc -shared -o yc_name.so yc_name.cpp
*/

using namespace std;

extern "C" {
 int extern_function(void *v_arg)
 {

	container *c=(container *)v_arg;
	
	user *p_user = (user*) c->elem[1];		// the corresponding user
	vector<string>  *params = (vector<string> *) c->elem[2];	// param array
        chat* p_chat = (chat*) ((dynamic_wrap*)c->elem[3])->CHAT; 
        conf* p_conf = (conf*) ((dynamic_wrap*)c->elem[3])->CONF; 
        timr* p_timr = (timr*) ((dynamic_wrap*)c->elem[3])->TIMR; 
        gcol* p_gcol = (gcol*) ((dynamic_wrap*)c->elem[3])->GCOL; 

        if ( ! params->empty() )
        {
         vector<string> ::iterator iter; 

         string s_room;

         for ( iter = params->begin(); iter != params->end(); iter++ )
         {
          s_room.append( *iter ); 
          if ( iter+1 != params->end() )
           s_room.append(" ");
         }

         int i_max_room_len = tool::string2int( p_conf->get_elem("chat.maxlength.roomname") ); 
         if ( i_max_room_len < s_room.length() )
          s_room = s_room.substr(0, i_max_room_len );         

         if ( tool::to_lower(s_room) == p_user->get_room()->get_lowercase_name() )
         {
          string s_msg = "<font color=\"" + p_conf->get_elem("chat.html.errorcolor") + "\">"
		       + p_conf->get_elem("chat.msgs.err.alreadyinroom") + "<b>"
                       + p_user->get_room()->get_name() + "</b></font><br>\n";	
          p_user->msg_post( &s_msg );
         }

         else
         {
          string s_user = p_timr->get_time() + " " + p_user->get_colored_bold_name(); 
          string s_msg = s_user + p_conf->get_elem( "chat.msgs.userleavesroom" ) + "<b>";
          string s_msg2 = s_user + p_conf->get_elem( "chat.msgs.userentersroom" ) + "<b>";

	  bool b_flag;
          room*  p_room = p_chat->get_room( s_room , b_flag );

          // if room does not exist add room to list!
          if ( p_room == NULL )
          {
           p_room = p_gcol->get_room_from_garbage_or_new( s_room );

           s_msg.append( s_room + "</b><br>\n" );
           s_msg2.append( s_room + "</b><br>\n" );

           room* p_room_old = p_user->get_room();

           string s_name_lowercase = p_user->get_lowercase_name();
           p_user->get_room()->del_elem( s_name_lowercase );

           p_gcol->lock_mutex();
           if ( p_room_old != NULL )
 	    p_room_old->msg_post( &s_msg ); 
           p_gcol->unlock_mutex();

           p_room->add_user( p_user );
           p_chat->add_elem( p_room );
           p_room->msg_post( &s_msg2 );
          }

          else // p_room != NULL
          {
           s_msg.append( p_room->get_name() + "</b><br>\n" );
           s_msg2.append( p_room->get_name() + "</b><br>\n" );

           room* p_room_old = p_user->get_room();

           string s_name_lowercase = p_user->get_lowercase_name();
           p_user->get_room()->del_elem( s_name_lowercase );

           p_gcol->lock_mutex();
           if ( p_room_old != NULL )
 	    p_room_old->msg_post( &s_msg ); 
           p_gcol->unlock_mutex();

           p_room->add_user( p_user );
           p_room->msg_post( &s_msg2 );
	  }
         }
	}

	return 0;
 }

}