/***************************************************************************
                          qpevents.cpp  -  description
                             -------------------
    begin                : Sun Jul 11 2004
    copyright          : (C) 2004 Andras Mantia <amantia@kde.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.                                   *
 *                                                                         *
 ***************************************************************************/

//qt includes
#include <qdatetime.h>
#include <qfile.h>
#include <qtextstream.h>

//kde includes
#include <kapplication.h>
#include <kdebug.h>
#include <klocale.h>
#include <kmessagebox.h>

//app includes
#include "qpevents.h"
#include "document.h"
#include "project.h"
#include "qextfileinfo.h"
#include "viewmanager.h"
#include "resource.h"
#include "quanta.h"
#include "tagaction.h"

//TODO: Better create a class for each internal event action
QPEvents::QPEvents(QObject *parent, const char *name)
 : QObject(parent, name)
{
   m_eventNames["before_save"] = i18n("Before Document Save");
   m_eventNames["after_save"] = i18n("After Document Save");
   m_eventNames["after_open"] = i18n("After Document Open");
   m_eventNames["before_close"] = i18n("Before Document Close");
   m_eventNames["after_close"] = i18n("After Document Close");
   m_eventNames["after_project_open"] = i18n("After Project Open");
   m_eventNames["before_project_close"] = i18n("Before Project Close");
   m_eventNames["after_project_close"] = i18n("After Project Close");
   m_eventNames["upload_requested"] = i18n("Upload Requested");
   m_eventNames["before_upload"] = i18n("Before Document Upload");
   m_eventNames["after_upload"] = i18n("After Document Upload");
   m_eventNames["after_project_add"] = i18n("After Addition to Project");
   m_eventNames["after_project_remove"] = i18n("After Removal From Project");
   m_eventNames["after_commit"] = i18n("After Commit to CVS");
   m_eventNames["after_update"] = i18n("After Update From CVS");
   m_eventNames["after_file_move"] = i18n("After Moving File Inside Project");
   m_eventNames["quanta_start"] = i18n("Quanta Start");
   m_eventNames["quanta_exit"] = i18n("Quanta Exit");
//   m_eventNames["after_multiple_save"] = i18n("After saving more files at once (like Save All)");

   m_actionNames["email"] = i18n("Send Email");
   m_actionNames["log"] = i18n("Log Event");
   m_actionNames["script"] = i18n("Script Action");
   m_actionNames["action"] = i18n("Non-Script Action");
}


QPEvents::~QPEvents()
{
}

void QPEvents::slotEventHappened(const QString& name, const QString& argument1, const QString& argument2)
{
  if (!quantaApp || !Project::ref()->eventsEnabled())
    return;
  EventActions *events = Project::ref()->events();
  if (!events) return;
  if (events->contains(name))
  {
    m_eventName = name;
    QValueList<EventAction> evList = (*events)[name];
    for (QValueList<EventAction>::Iterator it = evList.begin(); it != evList.end(); ++it)
    {
      EventAction ev = *it;
      if (ev.type == EventAction::Internal)
      {
        if (KMessageBox::warningContinueCancel(0L, i18n("<qt>An internal action (<i>%1</i>) associated with an event (<i>%2</i>) will be executed.  Do you want to allow the execution of this action?</qt>").arg(ev.action).arg(name), i18n("Event Triggered"), i18n("Execute"), "Warn about internal actions") == KMessageBox::Cancel)
          return;
      } else
      {
        if (KMessageBox::warningContinueCancel(0L, i18n("<qt>An external action (<i>%1</i>) associated with an event (<i>%2</i>) will be executed.  Do you want to allow the execution of this action?</qt>").arg(ev.action).arg(name), i18n("Event Triggered"), i18n("Execute"), "Warn about external actions") == KMessageBox::Cancel)
          return;
      }
      KURL url = KURL::fromPathOrURL(argument1);
      KURL url2 = KURL::fromPathOrURL(argument2);
      if (url.isValid())
      {
        bool inProject = Project::ref()->contains(url);
        if (inProject)
        {
          if (name == "upload_requested")
            {
              ev.arguments << i18n("An upload was initiated");
              ev.arguments << url.path();
              handleEvent(ev);
            }
        }
        if (inProject && url2.isValid())
        {
            if (name == "before_upload")
            {
              ev.arguments << i18n("About to upload a document");
              ev.arguments << url.path();
              ev.arguments << url2.path();
              handleEvent(ev);
            } else
            if (name == "after_upload")
            {
              ev.arguments << i18n("Document uploaded");
              ev.arguments << url.path();
              ev.arguments << url2.path();
              handleEvent(ev);
            } else
            if (name == "after_file_move")
            {
              ev.arguments << i18n("Document moved");
              ev.arguments << url.path();
              ev.arguments << url2.path();
              handleEvent(ev);
            }
        } else
        {
            QString relativePath = QExtFileInfo::toRelative(url, Project::ref()->projectBaseURL()).path();
            if (inProject && name == "after_save")
            {
              ev.arguments << i18n("Document saved");
              ev.arguments << relativePath;
              handleEvent(ev);
            } else
            if (inProject && name == "before_save")
            {
              ev.arguments << i18n("About to save a document");
              ev.arguments << relativePath;
              handleEvent(ev);
            } else
            if (inProject && name == "after_open")
            {
              ev.arguments << i18n("Document opened");
              ev.arguments << relativePath;
              handleEvent(ev);
            } else
            if (inProject && name == "after_close")
            {
              ev.arguments << i18n("Document closed");
              ev.arguments << relativePath;
              handleEvent(ev);
            } else
            if (inProject && name == "before_close")
            {
              ev.arguments << i18n("About to close a document");
              ev.arguments << relativePath;
              handleEvent(ev);
            } else
            if (name == "after_project_open")
            {
                ev.arguments << i18n("Project opened");
                ev.arguments <<  url.path();
                handleEvent(ev);
            } else
            if (name == "after_project_close")
            {
                ev.arguments << i18n("Project closed");
                ev.arguments <<  url.path();
                handleEvent(ev);
            } else
            if (name == "before_project_close")
            {
                ev.arguments << i18n("About to close the project");
                ev.arguments <<  url.path();
                handleEvent(ev);
            } else
            if (name == "after_project_add")
            {
                ev.arguments << i18n("Document added to project");
                ev.arguments <<  url.path();
                handleEvent(ev);
            } else
            if (name == "after_project_remove")
            {
                ev.arguments << i18n("Document removed from project");
                ev.arguments <<  url.path();
                handleEvent(ev);
            }
        }
      } else
      if (name == "after_commit")
      {
        ev.arguments << i18n("Document committed");
        ev.arguments << argument1;
        handleEvent(ev);
      } else
      if (name == "after_update")
      {
        ev.arguments << i18n("Document updated");
        ev.arguments << argument1;
        handleEvent(ev);
      } else
      if (name == "quanta_start")
      {
        ev.arguments << i18n("Quanta has been started");
        ev.arguments << argument1;
        handleEvent(ev);
      } else
      if (name == "quanta_exit")
      {
        ev.arguments << i18n("Quanta is shutting down");
        ev.arguments << argument1;
        handleEvent(ev);
      }
    }
  }
  if (!m_eventNames.contains(name))
    KMessageBox::sorry(0L, i18n("<qt>Unsupported event <b>%1</b>.</qt>").arg(name), i18n("Event Handling Error"));
}

bool QPEvents::handleEvent(const EventAction& ev)
{
  if (ev.type == EventAction::Internal)
  {
    if (ev.action == "email")
    {
       QString receiver = ev.arguments[0];
       TeamMember member;
       if (receiver == "teamleader")
         member = Project::ref()->teamLeader();
       else if (receiver.startsWith("subprojectleader-"))
       {
         QString s = receiver.remove("subprojectleader-");
         member = Project::ref()->subprojectLeader(s);
         SubProject subProject;
         QValueList<SubProject> *subprojects = Project::ref()->subprojects();
         for (uint i = 0 ; i < subprojects->count(); i++)
         {
           if ((*subprojects)[i].name == s)
           {
              subProject = (*subprojects)[i];
              break;
           }
         }
         if (!subProject.location.isEmpty() && !ev.arguments[2].startsWith(subProject.location))
         {
            kdDebug(24000) << ev.arguments[2] << " is not part of the " << subProject.name << "subproject \"" << subProject.location << "\". " << endl;
            return true;
         }
       }
       else if (receiver.startsWith("taskleader-"))
         member = Project::ref()->taskLeader(receiver.remove("taskleader-"));

       QString body;
       for (uint i = 2; i < ev.arguments.count(); i++)
          body += ev.arguments[i] + "\n";
       kapp->invokeMailer(member.name + "<" + member.email + ">", "", "", ev.arguments[1], body, "", QStringList(), "");

       return true;
    }
    if (ev.action == "log")
    {
      QString logFile = ev.arguments[0];
      KURL url = KURL::fromPathOrURL(logFile);
      if (url.isValid() && !url.isLocalFile())
      {
        KMessageBox::sorry(0L, i18n("Logging to remote files is not supported."));
        return false;
      }
      if (!logFile.startsWith("/"))
      {
        url = Project::ref()->projectBaseURL();
        url.addPath(logFile);
        if (!url.isLocalFile())
        {
          KMessageBox::sorry(0L, i18n("Logging to files inside a remote project is not supported."));
          return false;
        }
      }
      QFile file(url.path());
      bool result;
      if (ev.arguments[2] == "create_new")
        result = file.open(IO_WriteOnly);
      else
        result = file.open(IO_WriteOnly | IO_Append);
      if (result)
      {
        QTextStream stream(&file);
        stream.setEncoding(QTextStream::UnicodeUTF8);
        //Note: the log text should not be translated.
        QString s = QDateTime::currentDateTime().toString(Qt::ISODate) + ": ";
        s.append( "Event : " + m_eventName + " : ");
        s.append( "Action: " + ev.action + " : ");
        if (ev.arguments[1] == "full")
        {
          s.append( "Arguments: ");
          for (uint i = 1; i < ev.arguments.count(); i++)
            s.append(ev.arguments[i] + " | ");
        }
        s[s.length() - 1] = '\n';
        stream << s;
        file.close();
      }
      if (!result)
      {
        KMessageBox::sorry(0L, i18n("<qt>Logging failed. Check that you have write access to <i>%1</i>.").arg(url.path()));
        return false;
      }
    } else
      KMessageBox::sorry(0L, i18n("<qt>Unsupported internal event action : <b>%1</b>.</qt>").arg(ev.action));
  } else
  if (ev.type == EventAction::External)
  {
      //KMessageBox::sorry(0L, i18n("External event actions are not yet supported."));
      if (ev.action == "script" || ev.action =="action")
      {
          QString name = ev.arguments[0];
          KAction *action = quantaApp->actionCollection()->action(name);
          TagAction *tagAction = dynamic_cast<TagAction*>(action);
          if (tagAction)
          {
            bool blocking = (ev.arguments[1] == "yes");
            EventAction event = ev;
            event.arguments.remove(event.arguments.at(1));
            tagAction->addArguments(event.arguments);
            tagAction->execute(blocking);
          }
          else
          if (action)
          {
            action->activate();
          } else
            KMessageBox::sorry(0L, i18n("<qt>The <b>%1</b> script action was not found on your system.</qt>").arg(name), i18n("Action Execution Error"));
      }  else
      KMessageBox::sorry(0L, i18n("Unsupported external event action."));
  } else
      KMessageBox::sorry(0L, i18n("Unknown event type."));
  return false;
}

QString QPEvents::fullEventName(const QString &name)
{
   if (m_eventNames.contains(name))
     return m_eventNames[name];
   else
     return name;
}

QString QPEvents::fullActionName(const QString& name)
{
   if (m_actionNames.contains(name))
     return m_actionNames[name];
   else
     return name;
}

QString QPEvents::eventName(const QString &fullName)
{
   for (QMap<QString, QString>::ConstIterator it = m_eventNames.constBegin(); it != m_eventNames.constEnd(); ++it)
  {
    if (fullName  == it.data())
      return it.key();
  }
  return fullName;
}

QString QPEvents::actionName(const QString &fullName)
{
   for (QMap<QString, QString>::ConstIterator it = m_actionNames.constBegin(); it != m_actionNames.constEnd(); ++it)
  {
    if (fullName  == it.data())
      return it.key();
  }
  return fullName;
}

QStringList QPEvents::eventNames()
{
   QStringList names;
   for (QMap<QString, QString>::ConstIterator it = m_eventNames.constBegin(); it != m_eventNames.constEnd(); ++it)
  {
    names << it.data();
  }
  return names;
}

QStringList QPEvents::actionNames()
{
   QStringList names;
   for (QMap<QString, QString>::ConstIterator it = m_actionNames.constBegin(); it != m_actionNames.constEnd(); ++it)
  {
    names << it.data();
  }
  return names;
}

#include "qpevents.moc"