/*
   Bacula(R) - The Network Backup Solution

   Copyright (C) 2000-2016 Kern Sibbald

   The original author of Bacula is Kern Sibbald, with contributions
   from many others, a complete list can be found in the file AUTHORS.

   You may use this file and others of this release according to the
   license defined in the LICENSE file, which includes the Affero General
   Public License, v3.0 ("AGPLv3") and some additional permissions and
   terms pursuant to its AGPLv3 Section 7.

   This notice must be preserved when any source code is 
   conveyed and/or propagated.

   Bacula(R) is a registered trademark of Kern Sibbald.
*/
 
#include "bat.h"
#include <QAbstractEventDispatcher>
#include <QMenu>
#include "content.h"
#include "label/label.h"
#include "mediainfo/mediainfo.h"
#include "mount/mount.h"
#include "util/fmtwidgetitem.h"
#include "status/storstat.h"

// 
// TODO: List tray
//       List drives in autochanger
//       use user selection to add slot= argument
// 

Content::Content(QString storage, QTreeWidgetItem *parentWidget) : Pages()
{
   setupUi(this);
   pgInitialize(storage, parentWidget);
   QTreeWidgetItem* thisitem = mainWin->getFromHash(this);
   thisitem->setIcon(0,QIcon(QString::fromUtf8(":images/package-x-generic.png")));

   m_populated = false;
   m_firstpopulation = true;
   m_checkcurwidget = true;
   m_currentStorage = storage;

   connect(pbUpdate, SIGNAL(clicked()), this,
           SLOT(consoleUpdateSlots()));

   connect(pbLabel, SIGNAL(clicked()), this,
           SLOT(consoleLabelStorage()));

   connect(pbMount, SIGNAL(clicked()), this,
           SLOT(consoleMountStorage()));

   connect(pbUnmount, SIGNAL(clicked()), this,
           SLOT(consoleUnMountStorage()));

   connect(pbStatus, SIGNAL(clicked()), this,
           SLOT(statusStorageWindow()));

   connect(pbRelease, SIGNAL(clicked()), this,
           SLOT(consoleRelease()));

   connect(tableContent, SIGNAL(itemDoubleClicked(QTableWidgetItem*)), this,
           SLOT(showMediaInfo(QTableWidgetItem *)));

   dockPage();
   setCurrent();
}


/*
 * Subroutine to call class to show the log in the database from that job
 */
void Content::showMediaInfo(QTableWidgetItem * item)
{
   QTreeWidgetItem* pageSelectorTreeWidgetItem = mainWin->getFromHash(this);
   int row = item->row();
   QString vol = tableContent->item(row, 1)->text();
   if (vol != "") {
      new MediaInfo(pageSelectorTreeWidgetItem, vol);
   }
}

void table_get_selection(QTableWidget *table, QString &sel)
{
   QTableWidgetItem *item;
   int current;

   /* The QT selection returns each cell, so you
    * have x times the same row number...
    * We take only one instance
    */
   int s = table->rowCount();
   if (s == 0) {
      /* No selection?? */
      return;
   }
   bool *tab = (bool *)malloc(s * sizeof(bool));
   memset(tab, 0, s); 

   foreach (item, table->selectedItems()) {
      current = item->row();
      tab[current]=true;
   }

   sel += "=";

   for(int i=0; i<s; i++) {
      if (tab[i]) {
         sel += table->item(i, 0)->text();
         sel += ",";
      }
   }
   sel.chop(1);                 // remove trailing , or useless =
   free(tab);
}

/* Label Media populating current storage by default */
void Content::consoleLabelStorage()
{
   QString sel;
   table_get_selection(tableContent, sel);
   if (sel == "") {
      new labelPage(m_currentStorage);
   } else {
      QString cmd = "label barcodes slots";
      cmd += sel;
      cmd += " storage=" + m_currentStorage;
      consoleCommand(cmd);
   }
}

/* Mount currently selected storage */
void Content::consoleMountStorage()
{
   setConsoleCurrent();
   /* if this storage is an autochanger, lets ask for the slot */
   new mountDialog(m_console, m_currentStorage);
}

/* Unmount Currently selected storage */
void Content::consoleUnMountStorage()
{
   QString cmd("umount storage=");
   cmd += m_currentStorage;
   consoleCommand(cmd);
}

void Content::statusStorageWindow()
{
   /* if one exists, then just set it current */
   bool found = false;
   foreach(Pages *page, mainWin->m_pagehash) {
      if (mainWin->currentConsole() == page->console()) {
         if (page->name() == tr("Storage Status %1").arg(m_currentStorage)) {
            found = true;
            page->setCurrent();
         }
      }
   }
   if (!found) {
      QTreeWidgetItem *parentItem = mainWin->getFromHash(this);
      new StorStat(m_currentStorage, parentItem);
   }
}

/*
 * The main meat of the class!!  The function that querries the director and 
 * creates the widgets with appropriate values.
 */
void Content::populateContent()
{
   char buf[200];
   time_t tim;
   struct tm tm;

   QStringList results_all;
   QString cmd("status slots drive=0 storage=\"" + m_currentStorage + "\"");
   m_console->dir_cmd(cmd, results_all);

   Freeze frz(*tableContent); /* disable updating*/
   Freeze frz2(*tableTray);
   Freeze frz3(*tableDrive);

   tableContent->clearContents();
   tableTray->clearContents();
   tableTray->clearContents();

   // take only valid records, TODO: Add D to get drive status
   QStringList results = results_all.filter(QRegExp("^[IS]\\|[0-9]+\\|"));
   tableContent->setRowCount(results.size());

   QStringList io_results = results_all.filter(QRegExp("^I\\|[0-9]+\\|"));
   tableTray->setRowCount(io_results.size());

   QString resultline;
   QStringList fieldlist;
   int row = 0, row_io=0;

   foreach (resultline, results) {
      fieldlist = resultline.split("|");
      if (fieldlist.size() < 10) {
         Pmsg1(0, "Discarding %s\n", resultline.data());
         continue; /* some fields missing, ignore row */
      }

      int index=0;
      QStringListIterator fld(fieldlist);
      TableItemFormatter slotitem(*tableContent, row);

      /* Slot type */
      if (fld.next() == "I") {
         TableItemFormatter ioitem(*tableTray, row_io++);
         ioitem.setNumericFld(0, fieldlist[1]);
         ioitem.setTextFld(1, fieldlist[3]);
      }

      /* Slot */
      slotitem.setNumericFld(index++, fld.next()); 

      /* Real Slot */
      if (fld.next() != "") {

         /* Volume */
         slotitem.setTextFld(index++, fld.next());
         
         /* Bytes */
         slotitem.setBytesFld(index++, fld.next());
         
         /* Status */
         slotitem.setVolStatusFld(index++, fld.next());
         
         /* MediaType */
         slotitem.setTextFld(index++, fld.next());
         
         /* Pool */
         slotitem.setTextFld(index++, fld.next());
         
         tim = fld.next().toInt();
         if (tim > 0) {
            /* LastW */
            localtime_r(&tim, &tm);
            strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", &tm);
            slotitem.setTextFld(index++, QString(buf));
            
            /* Expire */
            tim = fld.next().toInt();
            localtime_r(&tim, &tm);
            strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", &tm);
            slotitem.setTextFld(index++, QString(buf));
         }
      }
      row++;
   }


   tableContent->verticalHeader()->hide();
   tableContent->sortByColumn(0, Qt::AscendingOrder);
   tableContent->setSortingEnabled(true);
   tableContent->resizeColumnsToContents();
   tableContent->resizeRowsToContents();

   tableContent->setEditTriggers(QAbstractItemView::NoEditTriggers);
   m_populated = true;

   tableTray->verticalHeader()->hide();
   tableTray->setEditTriggers(QAbstractItemView::NoEditTriggers);

   tableDrive->verticalHeader()->hide();
   /* Get count of rows needed (Drives) */
   QStringList drives = results_all.filter(QRegExp("^D\\|[0-9]+\\|"));
   /* Ensure we have sufficient rows for Drive display */
   tableDrive->setRowCount(drives.size()); 
   row = 0;
   foreach (resultline, drives) {
      fieldlist = resultline.split("|");
      if (fieldlist.size() < 4) { 
         continue; /* some fields missing, ignore row */
      } 
      int index=0;
      QStringListIterator fld(fieldlist);
      TableItemFormatter slotitem(*tableDrive, row);

      /* Drive type */
      fld.next();

      /* Number */
      slotitem.setNumericFld(index++, fld.next()); 

      /* Slot */
      fld.next();
      
      /* Volume */
      slotitem.setTextFld(index++, fld.next());
         
      row++;
   }

   tableDrive->resizeRowsToContents();
   tableDrive->setEditTriggers(QAbstractItemView::NoEditTriggers);
}

/*
 * Virtual function which is called when this page is visible on the stack
 */
void Content::currentStackItem()
{
   if(!m_populated) {
      populateContent();
   }
}

void Content::treeItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)
{

}

/* Update Slots */
void Content::consoleUpdateSlots()
{
   QString sel = "";
   table_get_selection(tableContent, sel);
   
   QString cmd("update slots");
   if (sel != "") {
      cmd += sel;
   }
   cmd += " drive=0 storage=" + m_currentStorage;

   Pmsg1(0, "cmd=%s\n", cmd.toUtf8().data());

   consoleCommand(cmd);
   populateContent();
}

/* Release a tape in the drive */
void Content::consoleRelease()
{
   QString cmd("release storage=");
   cmd += m_currentStorage;
   consoleCommand(cmd);
}
