/*  cdrdao - write audio CD-Rs in disc-at-once mode
 *
 *  Copyright (C) 1998-2002  Andreas Mueller <andreas@daneb.ping.de>
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <stdio.h>
#include <limits.h>
#include <math.h>
#include <assert.h>

#include <gtkmm.h>
#include <gnome.h>
#include <libgnomemm.h>
#include <libgnomeuimm.h>

#include "RecordCDTarget.h"
#include "MessageBox.h"
#include "xcdrdao.h"
#include "Settings.h"

#include "CdDevice.h"
#include "guiUpdate.h"
#include "TocEdit.h"
#include "DeviceList.h"

#include "util.h"

RecordCDTarget::RecordCDTarget(Gtk::Window *parent)
{
  active_ = 0;
  speed_ = 1;
  parent_ = parent;
  moreOptionsDialog_ = 0;
  set_spacing(10);

  DEVICES = new DeviceList(CdDevice::CD_R);

  pack_start(*DEVICES);

  // device settings
  Gtk::Frame *recordOptionsFrame = new Gtk::Frame(" Record Options ");

  Gtk::VBox *vbox = new Gtk::VBox;
  recordOptionsFrame->add(*vbox);
  vbox->set_border_width(5);
  vbox->set_spacing(5);
  vbox->show();

  Gtk::HBox *hbox = new Gtk::HBox;
  hbox->show();
  Gtk::Label *label = new Gtk::Label("Speed: ", 0);
  label->show();
  hbox->pack_start(*label, false, false);
  
  Gtk::Adjustment *adjustment = new Gtk::Adjustment(1, 1, 48);
  speedSpinButton_ = new Gtk::SpinButton(*adjustment);
  speedSpinButton_->set_digits(0);
  speedSpinButton_->show();
  speedSpinButton_->set_sensitive(false);
  adjustment->signal_value_changed().connect(sigc::mem_fun(*this, &RecordCDTarget::speedChanged));
  hbox->pack_start(*speedSpinButton_, false, false, 10);

  speedButton_ = new Gtk::CheckButton("Use max.", 0);
  speedButton_->set_active(true);
  speedButton_->show();
  speedButton_->signal_toggled().connect(sigc::mem_fun(*this, &RecordCDTarget::speedButtonChanged));
  hbox->pack_start(*speedButton_, true, true);
  vbox->pack_start(*hbox);

  hbox = new Gtk::HBox;
//  hbox->show();
  label = new Gtk::Label("Copies: ", 0);
  label->show();
  hbox->pack_start(*label, false, false);

  adjustment = new Gtk::Adjustment(1, 1, 999);
  copiesSpinButton_ = new Gtk::SpinButton(*adjustment);
  copiesSpinButton_->set_digits(0);
  copiesSpinButton_->show();
  hbox->pack_start(*copiesSpinButton_, false, false, 10);
  vbox->pack_start(*hbox);

  Gtk::Image* moreOptionsPixmap =
      manage(new Gtk::Image(Gtk::StockID(Gtk::Stock::PROPERTIES),
                            Gtk::ICON_SIZE_SMALL_TOOLBAR));
  Gtk::Label *moreOptionsLabel = manage(new Gtk::Label("More Options"));
  Gtk::HBox *moreOptionsBox = manage(new Gtk::HBox);
  moreOptionsBox->set_border_width(2);
  Gtk::Button *moreOptionsButton = manage(new Gtk::Button());
  moreOptionsBox->pack_start(*moreOptionsPixmap, false, false, 3);
  moreOptionsBox->pack_start(*moreOptionsLabel, false, false, 4);
  moreOptionsButton->add(*moreOptionsBox);
  moreOptionsButton->signal_clicked().connect(mem_fun(*this, &RecordCDTarget::moreOptions));
  moreOptionsPixmap->show();
  moreOptionsLabel->show();
  moreOptionsBox->show();
  moreOptionsButton->show();
  moreOptionsBox = manage(new Gtk::HBox);
  moreOptionsBox->show();
  vbox->pack_start(*moreOptionsBox, false, false);
  moreOptionsBox->pack_end(*moreOptionsButton, false, false);

  pack_start(*recordOptionsFrame, Gtk::PACK_SHRINK);
  recordOptionsFrame->show();
}

RecordCDTarget::~RecordCDTarget()
{
  if (moreOptionsDialog_)
    delete moreOptionsDialog_;
}

void RecordCDTarget::start()
{
  active_ = 1;
  
  update(UPD_ALL);

  show();
}

void RecordCDTarget::stop()
{
  if (active_) {
    hide();
    active_ = 0;
  }
}

void RecordCDTarget::moreOptions()
{
  if (!moreOptionsDialog_)
  {
	  moreOptionsDialog_ = new Gtk::MessageDialog(*parent_, "Target options",false, 
                                                Gtk::MESSAGE_QUESTION,
						      Gtk::BUTTONS_CLOSE, true);

    Gtk::VBox *vbox = moreOptionsDialog_->get_vbox();
    Gtk::Frame *frame = new Gtk::Frame(" More Target Options ");
    vbox->pack_start(*frame);
    vbox = new Gtk::VBox;
    vbox->set_border_width(10);
    vbox->set_spacing(5);
    frame->add(*vbox);

    overburnButton_ = new Gtk::CheckButton("Allow over-burning", 0);
    overburnButton_->set_active(false);
    vbox->pack_start(*overburnButton_);

    ejectButton_ = new Gtk::CheckButton("Eject the CD after writing", 0);
    ejectButton_->set_active(false);
    vbox->pack_start(*ejectButton_);

    reloadButton_ =
        new Gtk::CheckButton("Reload the CD after writing, if necessary", 0);
    reloadButton_->set_active(false);
    vbox->pack_start(*reloadButton_);

    closeSessionButton_ =
        new Gtk::CheckButton("Close disk - no further writing possible!", 0);
    closeSessionButton_->set_active(true);
    vbox->pack_start(*closeSessionButton_);

    Gtk::HBox *hbox = new Gtk::HBox;
    Gtk::Label *label = new Gtk::Label("Buffer: ", 0);
    hbox->pack_start(*label, false, false);

    Gtk::Adjustment *adjustment = new Gtk::Adjustment(10, 10, 1000);
    bufferSpinButton_ = new Gtk::SpinButton(*adjustment);
    hbox->pack_start(*bufferSpinButton_, false, false, 10);

    label = new Gtk::Label("audio seconds ");
    hbox->pack_start(*label, false, false);
    bufferRAMLabel_ = new Gtk::Label("= 1.72 Mb buffer.", 0);
    hbox->pack_start(*bufferRAMLabel_, true, true);
    adjustment->signal_value_changed().
        connect(sigc::mem_fun(*this, &RecordCDTarget::updateBufferRAMLabel));
    
    vbox->pack_start(*hbox);
  }

  moreOptionsDialog_->show_all();
  moreOptionsDialog_->run();
  moreOptionsDialog_->hide();
}

void RecordCDTarget::update(unsigned long level)
{
  if (!active_)
    return;

  if (level & UPD_CD_DEVICES)
    DEVICES->import();
  else if (level & UPD_CD_DEVICE_STATUS)
    DEVICES->importStatus();
}

void RecordCDTarget::cancelAction()
{
  stop();
}

int RecordCDTarget::getMultisession()
{
  if (moreOptionsDialog_)
    return closeSessionButton_->get_active() ? 0 : 1;
  else
    return 0; 
}

int RecordCDTarget::getCopies()
{
  return copiesSpinButton_->get_value_as_int();
}

int RecordCDTarget::getSpeed()
{
  if (speedButton_->get_active())
    return 0;
  else
    return speed_;
}

int RecordCDTarget::getBuffer()
{
  if (moreOptionsDialog_)
    return bufferSpinButton_->get_value_as_int();
  else
    return 10; 
}

bool RecordCDTarget::getEject()
{
  if (moreOptionsDialog_)
    return ejectButton_->get_active() ? 1 : 0;
  else
    return 0; 
}

bool RecordCDTarget::getOverburn()
{
  if (moreOptionsDialog_)
    return overburnButton_->get_active() ? 1 : 0;
  else
    return 0;
}

int RecordCDTarget::checkEjectWarning(Gtk::Window *parent)
{
  // If ejecting the CD after recording is requested issue a warning message
  // because buffer under runs may occur for other devices that are recording.
  if (getEject())
  {
    if (gnome_config_get_bool(SET_RECORD_EJECT_WARNING)) {
      Ask3Box msg(parent, "Request", 1, 2, 
    		"Ejecting a CD may block the SCSI bus and",
  		  "cause buffer under runs when other devices",
    		"are still recording.", "",
  	  	"Keep the eject setting anyway?", NULL);
  
      switch (msg.run()) {
      case 1: // keep eject setting
        if (msg.dontShowAgain())
        {
          gnome_config_set_bool(SET_RECORD_EJECT_WARNING, FALSE);
          gnome_config_sync();
        }
        return 1;
        break;
      case 2: // don't keep eject setting
        ejectButton_->set_active(false);
        return 0;
        break;
      default: // cancel
        return -1;
        break;
      }
    }
    return 1;
  }
  return 0;  
}

bool RecordCDTarget::getReload()
{
  if (moreOptionsDialog_)
    return reloadButton_->get_active() ? 1 : 0;
  else
    return 0; 
}

int RecordCDTarget::checkReloadWarning(Gtk::Window *parent)
{
  // The same is true for reloading the disk.
  if (getReload())
  {
    if (gnome_config_get_bool(SET_RECORD_RELOAD_WARNING)) {
      Ask3Box msg(parent, "Request", 1, 2, 
  		"Reloading a CD may block the SCSI bus and",
  		"cause buffer under runs when other devices",
  		"are still recording.", "",
  		"Keep the reload setting anyway?", NULL);

      switch (msg.run()) {
      case 1: // keep reload setting
        if (msg.dontShowAgain())
        {
      	gnome_config_set_bool(SET_RECORD_RELOAD_WARNING, FALSE);
          gnome_config_sync();
        }
        return 1;
        break;
      case 2: // don't keep reload setting
        reloadButton_->set_active(false);
        return 0;
        break;
      default: // cancel
        return -1;
        break;
      }
    }
    return 1;
  }
  return 0;
}

void RecordCDTarget::updateBufferRAMLabel()
{
  char label[20];
  
  sprintf(label, "= %0.2f Mb buffer.", bufferSpinButton_->get_value() * 0.171875);
  bufferRAMLabel_->set_text(label);
}

void RecordCDTarget::speedButtonChanged()
{
  if (speedButton_->get_active())
  {
    speedSpinButton_->set_sensitive(false);
  }
  else
  {
    speedSpinButton_->set_sensitive(true);
  }
}

void RecordCDTarget::speedChanged()
{
  // TODO: get max burn speed from selected burner(s)
  int new_speed;

  new_speed = speedSpinButton_->get_value_as_int();

  if ((new_speed % 2) == 1) {
    if (new_speed > 2) {
      if (new_speed > speed_)
        new_speed = new_speed + 1;
      else
        new_speed = new_speed - 1;
    }
    speedSpinButton_->set_value(new_speed);
  }

  speed_ = new_speed;
}