/* $Id: clock.h,v 1.14 2007/01/20 15:58:42 bergo Exp $ */

/*

    eboard - chess client
    http://eboard.sourceforge.net
    Copyright (C) 2000-2007 Felipe Paulo Guazzi Bergo
    bergo@seul.org

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#ifndef CLOCK_H
#define CLOCK_H 1

#include <sys/time.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <time.h>

#include "stl.h"
#include "eboard.h"
#include "widgetproxy.h"

class ClockHost {
 public:
  virtual void updateClock()=0;
};

// values for getActive()
#define CLK_WHITE_STOPPED -2
#define CLK_WHITE_RUNNING -1
#define CLK_STOPPED        0
#define CLK_BLACK_RUNNING  1
#define CLK_BLACK_STOPPED  2

class ChessClock : public UpdateInterface {
 public:
  ChessClock();
  virtual ~ChessClock();

  void setClock(int whitesec,int blacksec,int activep,int countdown);
  void setHost(ClockHost *hostp);
  void setAnotherHost(ClockHost *hostp);
  void setMirror(ChessClock *dest);

  int  getActive();
  int  getValue(int black);

  // which= -1=white 0=active one 1=black
  void incrementClock(int which, int secs);

  bool lowTimeWarning(piece mycolor);

  void update();
  
  int id;  

 private:
  int value[2],val_ref[2];
  time_t t_ref[2];
  int active;
  int countdownf;
  ClockHost *host, *host2;
  ChessClock *mirror;
  struct timeval LastWarning;

  static int freeid;
};


class ClockMaster {
 public:
  ClockMaster();
  void append(ChessClock *clockp);
  void remove(ChessClock *clockp);

 private:
  void update();

  list<ChessClock *> clocks;
  int timeout_on;
  int timeout_id;

  friend gint clockmaster_timeout(gpointer data);
};

gint clockmaster_timeout(gpointer data);

#define TCF_GNUCHESS4QUIRK  0x01

class TimeControl {
 public:  
  TimeControl();
  TimeControl &operator=(TimeControl &src);
  int          operator==(TimeControl &src);
  int          operator!=(TimeControl &src);

  void fromSerialization(const char *s);

  static void secondsToString(char *dest, int maxlen, int secs, bool units=false);
  static int  stringToSeconds(char *src);

  void setSecondsPerMove(int seconds);
  void setIcs(int base /* secs */, int increment /* secs */);
  void setXMoves(int nmoves, int nsecs);

  bool isRegressive();
  int  startValue();

  void toXBoard(char *dest, int maxlen, int flags = 0);
  void toString(char *dest, int maxlen);
  void toShortString(char *dest, int maxlen);
  void toPGN(char *dest, int maxlen); // format as a TimeControl tag

  TimeControlMode mode;
  int value[2];
};

class TimeControlEditDialog : public ModalDialog {
 public:
  TimeControlEditDialog(TimeControl *tc, bool allownone=true);
  virtual ~TimeControlEditDialog() {}
  void setUpdateListener(UpdateInterface *ui);

 private:
  GtkWidget *mi[4], *e[5], *f[3];
  TimeControl     *src;  
  TimeControl     local;
  UpdateInterface *listener;

  friend void tced_ok(GtkWidget *w, gpointer data);
  friend void tced_dropmenu(GtkMenuItem *w, gpointer data);
};

void tced_ok(GtkWidget *w, gpointer data);
void tced_dropmenu(GtkMenuItem *w, gpointer data);

#endif