// KMail startup and initialize code
// Author: Stefan Taferner <taferner@alpin.or.at>

#include <signal.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

#ifdef HAVE_PATHS_H
#include <paths.h>
#endif

#include <kuniqueapp.h>
#include <klocale.h>
#include <kglobal.h>
#include <dcopclient.h>
#include <kcrash.h>

#include "kmkernel.h" //control center

#undef Status // stupid X headers
#include "kmailIface_stub.h" // to call control center of master kmail

#include <kaboutdata.h>
#include <kdebug.h>

#include "kmversion.h"


// OLD about text.  This is horrbly outdated.
/*const char* aboutText =
    "KMail [" KMAIL_VERSION "] by\n\n"
    "Stefan Taferner <taferner@kde.org>,\n"
    "Markus Wübben <markus.wuebben@kde.org>\n\n"
    "based on the work of:\n"
    "Lynx <lynx@topaz.hknet.com>,\n"
    "Stephan Meyer <Stephan.Meyer@pobox.com>,\n"
    "and the above authors.\n\n"
    "This program is covered by the GPL.\n\n"
    "Please send bugreports to taferner@kde.org";
*/
const char *aboutText = 
  "KMail [" KMAIL_VERSION "] by\n\n"
  "Stefan Taferner <taferner@kde.org>,\n"
  "Don Sanders <don@sanders.org>,\n"
  "Waldo Bastian <bastian@kde.org>,\n"
  "Andreas Gungl <Andreas.Gungle@osp-dd.de>,\n"
  "Lars Knoll <knoll@mpi-hd.mpg.de>,\n"
  "J. Nick Koston <bdraco@darkorb.net>,\n"
  "Daniel Naber <dnaber@mini.gt.owl.de>,\n"
  "Sven Radej <radej@kde.org>,\n"
  "Espen Sand <espen@kde.org>,\n"
  "George Staikos <staikos@kde.org>,\n"
  "Mario Weilguni <mweilguni@sime.com>,\n"
  "Robert D. Williams <rwilliams@kde.org>\n\n"
  "based on the work of:\n"
  "Lynx <lynx@topaz.hknet.com>,\n"
  "Stephan Meyer <Stephan.Meyer@pobox.com>\n"
  "and the above authors.\n\n"
  "Please send bugreports to kmail@kde.org";

//static const char *description = I18N_NOOP("A KDE E-Mail client."); 
static const char *description = aboutText;

static KCmdLineOptions kmoptions[] =
{
  { "s", 0 , 0 },
  { "subject <subject>",	I18N_NOOP("Set subject of msg."), 0 },
  { "c", 0 , 0 },
  { "cc <address>",		I18N_NOOP("Send CC: to 'address'."), 0 },
  { "b", 0 , 0 },
  { "bcc <address>",		I18N_NOOP("Send BCC: to 'addres'."), 0 },
  { "h", 0 , 0 },
  { "header <header>",		I18N_NOOP("Add 'header' to msg."), 0 },
  { "msg <file>",		I18N_NOOP("Read msg-body from 'file'."), 0 },
  { "check",			I18N_NOOP("Check for new mail only."), 0 },
  { "composer",			I18N_NOOP("Open only composer window."), 0 },
  { "+[address]",		I18N_NOOP("Send msg to 'address'."), 0 },
//  { "+[file]",                  I18N_NOOP("Show message from file 'file'."), 0 },
  { 0, 0, 0}
};


static void signalHandler(int sigId);
static void setSignalHandler(void (*handler)(int));

//-----------------------------------------------------------------------------


// Crash recovery signal handler
static void signalHandler(int sigId)
{
  setSignalHandler(SIG_DFL);
  fprintf(stderr, "*** KMail got signal %d (Exiting)\n", sigId);
  // try to cleanup all windows
  kernel->dumpDeadLetters(); 
  ::exit(-1); // 
}

// Crash recovery signal handler
static void crashHandler(int sigId)
{
  setSignalHandler(SIG_DFL);
  fprintf(stderr, "*** KMail got signal %d (Crashing)\n", sigId);
  // try to cleanup all windows
  kernel->dumpDeadLetters();
  // Return to DrKonqi.
}
//-----------------------------------------------------------------------------


static void setSignalHandler(void (*handler)(int))
{
  signal(SIGKILL, handler);
  signal(SIGTERM, handler);
  signal(SIGHUP,  handler);
  KCrash::setEmergencySaveFunction(crashHandler);
}
//-----------------------------------------------------------------------------

class KMailApplication : public KUniqueApplication
{
public:
  KMailApplication() : KUniqueApplication() { };

  virtual int newInstance();
};

int KMailApplication::newInstance()
{
  QString to, cc, bcc, subj;
  KURL messageFile = QString::null;
  bool mailto = false;
  bool checkMail = false;
  //bool viewOnly = false;

  // process args:
  KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
  if (args->getOption("subject"))
  {
     mailto = true;
     subj = args->getOption("subject");
  }

  if (args->getOption("cc"))
  {
     mailto = true;
     cc = args->getOption("cc");
  }

  if (args->getOption("bcc"))
  {
     mailto = true;
     bcc = args->getOption("bcc");
  }

  if (args->isSet("composer"))
    mailto = true;

  if (args->isSet("check"))
    checkMail = true;

  for(int i= 0; i < args->count(); i++)
  {
    if (!to.isEmpty())
      to += ", ";
     if (strncasecmp(args->arg(i),"mailto:",7)==0)
       to += args->arg(i);
     else
       to += args->arg(i);
     mailto = true;
  }

  args->clear();

  kernel->action (mailto, checkMail, to, cc, bcc, subj, messageFile);
  return 0;
}

int main(int argc, char *argv[])
{
  // WABA: KMail is a KUniqueApplication. Unfortunately this makes debugging
  // a bit harder: You should pass --nofork as commandline argument when using
  // a debugger. In gdb you can do this by typing "set args --nofork" before
  // typing "run".

  KAboutData about("kmail", I18N_NOOP("KMail"), 
                   KMAIL_VERSION, 
                   description,
		   KAboutData::License_GPL,
                   "(c) 1997-2000, The KMail developers" );

  KCmdLineArgs::init(argc, argv, &about);
  KCmdLineArgs::addCmdLineOptions( kmoptions ); // Add kmail options

  if (!KMailApplication::start())
     exit(0);
  
  KMailApplication app;
  
  //local, do the init
  KMKernel kmailKernel;
  kmailKernel.init();

  // and session management
  kmailKernel.doSessionManagement();
  
  // any dead letters?
  kmailKernel.recoverDeadLetters();

  setSignalHandler(signalHandler);
  
  // Go!
  kapp->exec();

  // clean up
  kmailKernel.cleanup();
}