/****************************************************************************
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** Copyright (C) 2004-2006 Frank Hemer <frank@hemer.org>,
**                         Tilo Riemer <riemer@crossvc.com>
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*****************************************************************************/

#include "Patch.h"

#include <qapplication.h>
#include <assert.h>

#include "globals.h"
#include "PatchDialogImpl.h"

Patch * Patch::patchFile(const QIconSet &whatsThisIconSet, QWidget* parent, CvsDirListView * workBench, QStringList * currentTagList)
{
   return setup(whatsThisIconSet, parent, workBench, false, currentTagList);
}

Patch * Patch::patchDir(const QIconSet &whatsThisIconSet, QWidget* parent, CvsDirListView * workBench, QStringList * currentTagList) {
   return setup(whatsThisIconSet, parent, workBench, true, currentTagList);
}

Patch * Patch::setup(const QIconSet &whatsThisIconSet, QWidget* parent, CvsDirListView * workBench, bool isDir, QStringList * currentTagList) {

   DirBase * dir = workBench->selectedItem();
   if (!dir) return NULL;

   if (dir->getType() == DirBase::Cvs) {

      Patch * p = new Patch(whatsThisIconSet, parent, workBench, dir, isDir);

      if (isDir) {
	 p->m_dlg = new PatchDialogImpl(p->m_dir->fullName(),
	       p->m_dir->shortName(),
	       currentTagList,
	       p->m_dir->topControlledDir()->relativeName(),
	       p->m_whatsThisIconSet,
	       p->m_parent);
      } else {
	 p->m_dlg = new PatchDialogImpl(p->m_dir->fullName(),
	       p->m_dir->getSelectedFiles(),
	       currentTagList,
	       p->m_dir->topControlledDir()->relativeName(),
	       p->m_whatsThisIconSet,
	       p->m_parent);

      }
	 
      connect(p->m_dlg,SIGNAL(accept()),p,SLOT(acceptCvs()));
      connect(p->m_dlg,SIGNAL(reject()),p,SLOT(reject()));
      p->m_dlg->show();

      return p;

   } else {
      
      qDebug("Patch: Method not implemented");
      return NULL;
   }

}

Patch::Patch(const QIconSet &whatsThisIconSet, QWidget* parent, CvsDirListView * workBench, DirBase * dir, bool isDir)
   :  m_whatsThisIconSet(whatsThisIconSet),
      m_parent(parent),
      m_workBench(workBench),
      m_dir(dir),
      m_dlg(NULL),
      m_isDir(isDir)
{
   connect(this,SIGNAL(deleteObject(QObject *)),parent,SLOT(slot_deleteObject(QObject *)));
   connect(this,SIGNAL(showWarning(const QString &,const QString &)),parent,SLOT(showWarning(const QString &,const QString &)));
}

Patch::~Patch() {
   if (m_dlg) delete m_dlg;
   m_dlg = NULL;
}

void Patch::acceptCvs() {

   if (!m_dir) {
      emit showWarning(tr("Warning"),tr("The former selected dir has\nbeen modified or removed,\naborting"));
      reject();
      return; //show warning
   }

   PatchDialogImpl * dlg = static_cast<PatchDialogImpl*>(m_dlg);
   assert(dlg);
   QString tag = dlg->getCvsCmd();
   QString patchFile = dlg->getPatchFile();
   delete m_dlg;
   m_dlg = NULL;

   QString hlp;
   QString cvsRoot = CvsOptions::cmprStr() + " -Q diff -N ";
   if (bDiffIgnoreWhiteSpace) cvsRoot += "-b -B ";
   if (CvsOptions::g_bUnifiedDiffOutput) cvsRoot += "-u ";
   if (!tag.isEmpty()) cvsRoot += tag + " ";
   if (!m_isDir) {
      QStringList files = m_dir->getSelectedFiles();
      masqQuoteMarks(&files);
      cvsRoot += masqWs(files.join("\" \"")) + " ";
   }
   cvsRoot +=  "> " + patchFile;
   QString file = "";
   QString dir = m_dir->fullName();
   QString topModule = m_dir->topControlledDir()->relativeName();
   
   callInteractive( topModule, dir, cvsRoot,
	 file, CVS_PATCH_FILE,
	 ExtApps::g_cvsRsh.path,  //additional options of cvsRsh not supported yet
	 NOROOT);
}

void Patch::reject() {
   emit deleteObject(this);
}

void Patch::cvsCallStarted() {
   QApplication::setOverrideCursor(Qt::waitCursor);
}

void Patch::cvsCallFinished() {
   QApplication::restoreOverrideCursor();
}

void Patch::afterCall(int cmd,CvsBuffer*,bool failed) {
   cvsCallFinished();
   if (failed) {
      reject();
      return;
   }
   switch( cmd) {
      case CVS_PATCH_FILE: {
         break;
      }
      default: {
         qDebug("Patch::afterCall: Unknown cmd");
      }
   }
   reject();
}