#include "main.h"
#include <qwindowsstyle.h>
#include <qstylefactory.h>
#include <qstyle.h>
#include <qpalette.h>
#include <qradiobutton.h>
#include <qcheckbox.h>
#include <qbuttongroup.h>
#include <qtooltip.h>
#include <qtimer.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/stat.h>

#include "instr_hosts.h"
#include "utils.h"

QPoint firstPos;

FILE *fil;
char preffile[PATH_MAX]="";
int prefdirlen = 0;
char prefil[80]="";
char homeinstr[64]="";
const char *instr;
//char prefinstr[64]="";
char frominstr[128];

const char *fullinstr(const char *host, const char *instr) {
  static char buf[128];
  if (strncasecmp(host, instr, strlen(instr)) == 0) {
    return host;
  }
  snprintf(buf, sizeof buf, "%s at %s", host, strtoupper(instr));
  return buf;
}

SeaApp::SeaApp(int &argc, char **argv) : QApplication(argc, argv) {
  char *arg;
  char *style=0;
  char instrList[1024];
  QString deviceList;
  int i;

  int port;
  char host[64];
  int query;
  struct tm tm;
  time_t startupTime, now, range;
  QString tip;
  SicsConnection *seaman;
  char *remotehost;
  char *remoteinstr;
  char *hostname;
  char warning[256];
  int x, y, w, h;
  QFont afont = font();
  afont.setPointSize(12);
  setFont(afont);
  
  time(&lastActive);
  time(&lastTimer);
  tab = NULL;
  sleepTime = 3600;
  sleeping = false;
  frominstr[0] = 0;
  
  home = InstrHost("sea", "", homeinstr, sizeof homeinstr, host, sizeof host, &port);
  if (port == 0) {
    homeinstr[0]='\0';
  }
  remoteinstr = InstrHostRemoteInstr();
  hostname = InstrHostName();
  remotehost = InstrHostRemoteName();
  instr = NULL;
  query = -1;
  range = 1800;
  setprintit(0);
  for (i=1; i<argc; i++) {
    arg = argv[i];
    if (strcmp(arg,"-q") == 0) {
      query = 1; /* ask for instrument */
    } else if (strcmp(arg,"-r") == 0) {
      /* disable verbose startup, obsolete */
    } else if (strcmp(arg,"-v") == 0) {
      /* verbose startup */
      setprintit(2);
    } else if (strcmp(arg,"-d") == 0) {
      /* give date & time, +- 0.5 h */
      i++;
      if (i<argc) {
        time(&now);
        tm = *localtime(&now);
        strptime(argv[i], "%Y-%m-%d:%H:%M:%S", &tm);
        range = mktime(&tm);
      }
    } else if (strcmp(arg,"-s") == 0) {
      /* select style */
      i++;
      if (i>=argc) {
        QStringList keys=QStyleFactory::keys();
        printf("styles: %s\n", keys.join(", ").latin1());
        ciao();
      }
      style = argv[i];
    } else if (strcasecmp(arg,"-h") == 0) {
      /* ??? */
      home = 1;
    } else if (strcasecmp(arg,"-p") == 0) {
      i++;
      /* ignore obsolete pid file option */
    } else if (strcasecmp(arg,"-c") == 0) {
      i++;
      /* ignore obsolete watch/restart option */
    } else if (strcasecmp(arg,"-t") == 0) {
      /* set sleep time (1 h by default) */
      i++;
      if (i<argc) {
        sleepTime = atoi(argv[i]);
        if (sleepTime == 0) {
          sleepTime = 365 * 24 * 3600;
        }
      }
    } else if (strcasecmp(arg,"start") == 0) {
      printf("'start' is an illegal argument\n");
      fail();
    } else if (arg[0] !='-') {
      /* an instrument or a hostname */
      if (query < 0) query = 0;
      if (home == 1 && strcasecmp(homeinstr, arg) != 0) {
        snprintf(frominstr, sizeof frominstr, "but logged in to %s", fullinstr(hostname, homeinstr));
        //prefinstr[0] = 0;
      } else if (remoteinstr[0] && strcasecmp(remoteinstr, arg) != 0) {
        snprintf(frominstr, sizeof frominstr, "but logged in from %s", fullinstr(remotehost, remoteinstr));
        //prefinstr[0] = 0;
      }
      /*
      else if (home == 1 && strcasecmp(homeinstr, arg) == 0) {
        prefinstr[0] = 0;
      } else if (prefinstr[0] && strcasecmp(prefinstr, arg) != 0) {
        snprintf(frominstr, sizeof frominstr, "but preferred instrument is %s", strtoupper(prefinstr));
      }
      */
      instr = strdup(arg);
      port = -1;
    }
  }
  if (query < 0) {
    if (remoteinstr[0] && home == 1 && strcasecmp(remoteinstr, homeinstr) != 0) {
      snprintf(frominstr, sizeof frominstr, "but logged in from %s", fullinstr(remotehost, remoteinstr));
      query = 2; /* no checkbox for default instrument */
      instr = homeinstr;
    } else if (home == 1) { /* one instr found with home as host */
      instr = homeinstr;
      query = 0;
      printf("\nconnect to %s as started from %s (other selection: sea -q)\n", strtoupper(instr), hostname);
      /*
    } else if (prefinstr[0] != 0) { // a default instrument is defined
      instr = prefinstr;
      query = 0;
      printf("\nconnect to %s by preference (other selection: sea -q)\n", strtoupper(prefinstr));
      */
    } else {
      query = 1;
    }
  }
  if (instr == NULL) {
    instr = ""; //prefinstr;
  }
  QColor bgr(221, 221, 221);
  if (style) {
    if (setStyle(style)) {
      printf("set style to %s\n", style);
    }
  } else {
    setStyle("windows");
    QPalette pal = palette();
    pal.setColor(QColorGroup::Background, bgr);
    pal.setColor(QColorGroup::Button, bgr);
    setPalette(pal);
  }
    
  QDialog menu(0);
  QButtonGroup bg(&menu);
  QGridLayout grid(&menu,1,1,12,12);
  QRadioButton *rb;

  if (port == 0 || query) {
    if (instr[0] == 0) {
      /* determine default instrument */
      if (home == 1) {
        instr = homeinstr;
        /*
      } else if (prefinstr[0]) {
        instr = prefinstr;
        */
      } else if (remoteinstr[0]) {
        instr = remoteinstr;
      }
    }
    
    InstrList("graph", instrList, sizeof instrList);
    QStringList list(QStringList::split(' ', instrList, true));
    QString seamancmd = list.join(",");
    seamancmd.insert(0, "_tcl get_devices ");

    seaman = new SicsConnection(&menu);
    seaman->setHost("seaman", "sea");
    seaman->setUser("seauser seaser\n");
    
    seaman->command(seamancmd.latin1());
    if (!seaman->getLine(deviceList)) {
      deviceList = "";
    }
    QStringList devlist(QStringList::split(',', deviceList, true));

    seaman->disconnect();

    int row = 1, col=0, cols = 4;
    
    menu.setCaption("Sea");
//    grid.setMargin(5);

    QLabel *label = new QLabel("Select instrument", &menu);
    QFont font = label->font();
    font.setPointSize(18);
    label->setFont(font);
    QFont tooltipfont = QToolTip::font(); 
    QToolTip::setFont(font);
    grid.addMultiCellWidget(label, 0, 0, 0, cols-1);

    QStringList::Iterator dit = devlist.begin();
    for (QStringList::Iterator it = list.begin(); it != list.end(); ++it, ++dit) {
      if ((*it).isEmpty()) {
        if (col >= 0) {
          col = 0;
          row++;
        }
      } else {
        rb = new QRadioButton(*it, &menu);
        rb->setFont(font);
        if (!(*dit).isEmpty()) {
          QToolTip::add(rb, *dit);
        }
        grid.addWidget(rb, row, col);
        QObject::connect(rb, SIGNAL(clicked()), &menu, SLOT(accept()));
        bg.insert(rb);
        col++;
        if (col >= cols) {
          col = 0;
          row++;
        }
        if ((*it).compare(instr) == 0) {
          rb->setChecked(true);
        }
      }
    }
    if (col > 0) {
      row++;
      col = 0;
    }

    if (query == 1) {
      /*
      QString cbtext("default instrument when started from ");
      cbtext += remotehost;
      defi = new QCheckBox(cbtext, &menu);
      if (prefinstr[0]) defi->setChecked(true);
      grid.addMultiCellWidget(defi, row, row, 0, cols-1);
      row++;
      */
    }
    
    QPushButton ok("OK", &menu);
    ok.setDefault(true);
    ok.setFont(font);
    connect(&ok, SIGNAL(clicked()), &menu, SLOT(accept()));
    grid.addWidget(&ok, row, 0);
    
    QPushButton cancel("Quit", &menu);
    cancel.setFont(font);
    connect(&cancel, SIGNAL(clicked()), &menu, SLOT(reject()));
    grid.addWidget(&cancel, row, cols-1);
    
    bg.hide();
    
    if (printit()) {
      printf("Instrument selection\n");
    }
    if (menu.exec() == QDialog::Rejected) ciao();
    rb = dynamic_cast<QRadioButton *>(bg.selected());
    if (!rb) ciao();
    instr = strdup(rb->text());
    /*
    if (defi) {
      if (defi->isChecked()) {
        snprintf(prefinstr, sizeof prefinstr, "%s", instr);
      } else {
        prefinstr[0] = 0;
      }
    }
    */
    QToolTip::setFont(tooltipfont);
  }
  
  
  if (frominstr[0]) {
    snprintf(warning, sizeof warning, "WARNING: connected to %s,\n%s\n", strtoupper(instr), frominstr);
    printf("\n%s\n", warning);
  } else {
    warning[0] = 0;
  }
  time(&startupTime);
  if (printit()) {
    printf("Sea %s starting,\n", instr);
  }
  
  // read preferences
  // include the screen size into the name: this helps if clients are used
  // remotely from different screen sizes

  // new pref. file: include remote host name
  snprintf(preffile, sizeof preffile, "%s/.seapref/%s_%s_%dx%d",
    getenv("HOME"), remotehost, instr, desktop()->width(), desktop()->height());
  prefdirlen = strstr(preffile, "seapref/") + 7 - preffile;
  fil = fopen(preffile, "r");
  if (fil) { /* new style pref file */
    char header[128];
    fgets(header, sizeof header, fil); // skip header
    if (4 != fscanf(fil, "%d %d %d %d", &x, &y, &w, &h)) {
      x = -1;
    }
    fclose(fil);
    prefil[0] = 0;
  } else {
    // old style pref. file
    snprintf(prefil, sizeof prefil, ".sea_%dx%d_%s",
      desktop()->width(), desktop()->height(), instr);
    fil = fopen(prefil, "r");
    if (fil) {
      if (4 != fscanf(fil, "%d %d %d %d", &x, &y, &w, &h)) {
        x = -1;
      }      
      fclose(fil);
    } else {
      x = -1;
    }
  }


  
  tab = new Tab(strdup(instr), 0, range, warning);
  if (tab->graph == NULL) ciao();
  connect(tab->device, SIGNAL(restart(const char*)), tab->graph->set, SLOT(restart(const char *)));

  if (x >= 0) {
    tab->initSize(w, h);
    tab->move(x, y);
  } else {
    tab->initSize(1000, 800);
  }
  tab->show();
  /*
  QBoxLayout *lay = dynamic_cast<QBoxLayout *>(tab->layout());

  QLayoutIterator it = lay->iterator();
  QLayoutItem *child;
  while ( (child = it.current()) != 0 ) {
    if (child->widget()) {
      printf("- widget %s\n", child->widget()->name());
    } else if (child->spacerItem()) {
      printf("- spacer\n");
    } else if (child->layout()) {
      printf("- layout\n");
    } else {
      printf("- null\n");
    }
    ++it;
  }
  lay->insertWidget(3,tab->split);
  */
  firstPos = tab->pos();
  tab->move(firstPos);
  time(&now);
  if (range > 365*24*3600) {
    tip.sprintf("initially off");
  } else if ((int)(now - startupTime) < 7) {
    tip.sprintf("initially on\n%d sec for startup:\nconnection seems fast enough", (int)(now - startupTime));
    tab->graph->liveBox->setChecked(true);
  } else {
    tip.sprintf("initially off\n%d sec for startup:\nconnection seems slow", (int)(now - startupTime));
  }
  QToolTip::add(tab->graph->liveBox, tip);

  connect(this, SIGNAL(lastWindowClosed()), this, SLOT(quit()));
//  connect(this, SIGNAL(lastWindowClosed()), this, SLOT(ciao()));

  connect(tab->exportXY, SIGNAL(procEvt()), this, SLOT(procEvt()));
  connect(tab->settings->set, SIGNAL(gotoTime(time_t, time_t, time_t, bool)),
          tab->report, SLOT(gotoTime(time_t, time_t, time_t, bool)));
  connect(tab->report, SIGNAL(setMarker(time_t)),
          tab->settings->set, SLOT(setMarker(time_t)));
  connect(tab->settings->set->ec, SIGNAL(progress(int)), tab->exportXY, SLOT(progress(int)));
  return;
}

void Exit(int code) {
  exit(code);
}

void SeaApp::ciao() {
  Exit(0);
}

void SeaApp::fail() {
  Exit(257);
}

void SeaApp::procEvt() {
  processEvents(100);
}

QRect savedWinGeo;

bool moveOrResize = true;

bool SeaApp::notify(QObject *receiver, QEvent *e) {
  time_t now;
  bool result;
  
  QEvent::Type t = e->type();
  switch (t) {
    case QEvent::MouseButtonPress: 
    case QEvent::MouseButtonDblClick: 
    case QEvent::KeyPress:
      lastActive = time(NULL);
      if (tab) {
        if (sleeping) {
          tab->wake();
          sleeping = FALSE;
        }
        tab->graph->set->runningMarkerOff(true);
        result = QApplication::notify(receiver, e);
        tab->graph->set->runningMarkerOff(false);
        return result;
      }
      break;
    case QEvent::Timer:
      time(&now);
      if (now > lastActive + sleepTime) {
        if (frominstr[0])
          exit();
        if (lastTimer < now - 120) {
          lastActive = now + 120 - sleepTime;
        }
//        if (home != 1 && now > lastActive + 24*3600) {
//          exit(); // exit when not on instrument computer after one day
//        }
        if (now > lastActive + 24*3600) {
          exit(); // exit anyway when not active for one day
        }
        if (!sleeping && tab != NULL) {
          tab->sleep("sleeping ... click to wake up");
          sleeping = TRUE;
        }
      }
      if (moveOrResize && now != lastTimer && tab != NULL &&
          tab->settings->set->sc->state != disconnected) {
        moveOrResize = false;
        QRect winGeo(tab->pos(), tab->size());
        if (winGeo != savedWinGeo) {
          savedWinGeo = winGeo;
          fil = fopen(preffile, "w");
          if (fil == NULL) {
            preffile[prefdirlen] = 0;
            mkdir(preffile, 0755);
            chmod(preffile, 0755);
            preffile[prefdirlen] = '/';
            fil = fopen(preffile, "w");
          }
          if (fil) {
            fprintf(fil, "#seaclient preferences V1.1\n%d %d %d %d\n",
              winGeo.x(), winGeo.y(),
              winGeo.width(), winGeo.height());
            fclose(fil);
          }
        }
      }
      lastTimer = now;
      break;
    case QEvent::Move:
    case QEvent::Resize:
      moveOrResize = true;
      break;
    case QEvent::WindowDeactivate:
//      printf("deact\n");
      break;
    default:
      break;
  }
  return QApplication::notify(receiver, e);
}

int main(int argc, char ** argv) {
  SeaApp sea(argc, argv);
//  printf("exit %d\n", sea.exec());
//  return 0;
  return sea.exec();
}