/* This file is part of Clementine.
   Copyright 2010, David Sansome <me@davidsansome.com>

   Clementine 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 3 of the License, or
   (at your option) any later version.

   Clementine 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 Clementine.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "wiimotesettingspage.h"

#include <QMessageBox>

#include "consts.h"
#include "shortcuts.h"
#include "ui/iconloader.h"
#include "ui_wiimotesettingspage.h"
#include "wiimoteshortcutgrabber.h"

WiimoteSettingsPage::WiimoteSettingsPage(SettingsDialog* dialog)
    : SettingsPage(dialog), ui_(new Ui_WiimoteSettingsPage) {
  ui_->setupUi(this);
  ui_->list->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
  setWindowIcon(IconLoader::Load("wiimotedev", IconLoader::Base));
  ui_->wiimotedev_add_action->setIcon(
      IconLoader::Load("list-add", IconLoader::Base));
  ui_->wiimotedev_delete_action->setIcon(
      IconLoader::Load("list-remove", IconLoader::Base));
  ui_->wiimotedev_reload->setIcon(
      IconLoader::Load("view-refresh", IconLoader::Base));

  text_buttons_.insert(WIIMOTE_BTN_1, "Wii Remote 1");
  text_buttons_.insert(WIIMOTE_BTN_2, "Wii Remote 2");
  text_buttons_.insert(WIIMOTE_BTN_A, "Wii Remote A");
  text_buttons_.insert(WIIMOTE_BTN_B, "Wii Remote B");
  text_buttons_.insert(WIIMOTE_BTN_PLUS, "Wii Remote ⊕");
  text_buttons_.insert(WIIMOTE_BTN_MINUS, "Wii Remote ⊖");
  text_buttons_.insert(WIIMOTE_BTN_HOME, "Wii Remote ⌂");
  text_buttons_.insert(WIIMOTE_BTN_UP, "Wii Remote ↑");
  text_buttons_.insert(WIIMOTE_BTN_DOWN, "Wii Remote ↓");
  text_buttons_.insert(WIIMOTE_BTN_LEFT, "Wii Remote ←");
  text_buttons_.insert(WIIMOTE_BTN_RIGHT, "Wii Remote →");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_UP, "Wii Remote Shift ↑");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_DOWN, "Wii Remote Shift ↓");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_LEFT, "Wii Remote Shift ←");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_RIGHT, "Wii Remote Shift →");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_FORWARD, "Wii Remote Shift Forward");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_BACKWARD, "Wii Remote Shift Backward");
  text_buttons_.insert(WIIMOTE_BTN_TILT_FRONT, "Wii Remote Tilt Frontwards");
  text_buttons_.insert(WIIMOTE_BTN_TILT_BACK, "Wii Remote Tilt Backwards");
  text_buttons_.insert(WIIMOTE_BTN_TILT_LEFT, "Wii Remote Tilt Leftwards");
  text_buttons_.insert(WIIMOTE_BTN_TILT_RIGHT, "Wii Remote Tilt Rightwards");
  text_buttons_.insert(NUNCHUK_BTN_Z, "Nunchuk Z");
  text_buttons_.insert(NUNCHUK_BTN_C, "Nunchuk B");
  text_buttons_.insert(NUNCHUK_BTN_STICK_UP, "Nunchuk Stick ↑");
  text_buttons_.insert(NUNCHUK_BTN_STICK_DOWN, "Nunchuk Stick ↓");
  text_buttons_.insert(NUNCHUK_BTN_STICK_LEFT, "Nunchuk Stick ←");
  text_buttons_.insert(NUNCHUK_BTN_STICK_RIGHT, "Nunchuk Stick →");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_UP, "Nunchuk Shift ↑");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_DOWN, "Nunchuk Shift ↓");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_LEFT, "Nunchuk Shift ←");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_RIGHT, "Nunchuk Shift →");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_FORWARD, "Nunchuk Shift Forward");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_BACKWARD, "Nunchuk Shift Backward");
  text_buttons_.insert(NUNCHUK_BTN_TILT_FRONT, "Nunchuk Tilt Frontwards");
  text_buttons_.insert(NUNCHUK_BTN_TILT_BACK, "Nunchuk Tilt Backwards");
  text_buttons_.insert(NUNCHUK_BTN_TILT_LEFT, "Nunchuk Tilt Leftwards");
  text_buttons_.insert(NUNCHUK_BTN_TILT_RIGHT, "Nunchuk Tilt Rightwards");
  text_buttons_.insert(CLASSIC_BTN_X, "Classic X");
  text_buttons_.insert(CLASSIC_BTN_Y, "Classic Y");
  text_buttons_.insert(CLASSIC_BTN_A, "Classic A");
  text_buttons_.insert(CLASSIC_BTN_B, "Classic B");
  text_buttons_.insert(CLASSIC_BTN_L, "Classic L");
  text_buttons_.insert(CLASSIC_BTN_R, "Classic R");
  text_buttons_.insert(CLASSIC_BTN_ZL, "Classic ZL");
  text_buttons_.insert(CLASSIC_BTN_ZR, "Classic ZR");
  text_buttons_.insert(CLASSIC_BTN_MINUS, "Classic ⊖");
  text_buttons_.insert(CLASSIC_BTN_PLUS, "Classic ⊕");
  text_buttons_.insert(CLASSIC_BTN_HOME, "Classic ⌂");
  text_buttons_.insert(CLASSIC_BTN_UP, "Classic ↑");
  text_buttons_.insert(CLASSIC_BTN_DOWN, "Classic ↓");
  text_buttons_.insert(CLASSIC_BTN_LEFT, "Classic ←");
  text_buttons_.insert(CLASSIC_BTN_RIGHT, "Classic →");
  text_buttons_.insert(CLASSIC_BTN_LSTICK_UP, "Classic Left-Stick ↑");
  text_buttons_.insert(CLASSIC_BTN_LSTICK_DOWN, "Classic Left-Stick ↓");
  text_buttons_.insert(CLASSIC_BTN_LSTICK_LEFT, "Classic Left-Stick ←");
  text_buttons_.insert(CLASSIC_BTN_LSTICK_RIGHT, "Classic Left-Stick →");
  text_buttons_.insert(CLASSIC_BTN_RSTICK_UP, "Classic Right-Stick ↑");
  text_buttons_.insert(CLASSIC_BTN_RSTICK_DOWN, "Classic Right-Stick ↓");
  text_buttons_.insert(CLASSIC_BTN_RSTICK_LEFT, "Classic Right-Stick ←");
  text_buttons_.insert(CLASSIC_BTN_RSTICK_RIGHT, "Classic Right-Stick →");
  text_buttons_.insert(WIIMOTE_BTN_SHIFT_SHAKE, "Wiiremote Shift Shake");
  text_buttons_.insert(NUNCHUK_BTN_SHIFT_SHAKE, "Nunchuk Shift Shake");

  text_actions_.insert(WiimotedevShortcuts::WiimotedevActiveDeactive,
                       tr("Activate/Deactivate Wii Remote"));
  text_actions_.insert(WiimotedevShortcuts::PlayerNextTrack, tr("Next track"));
  text_actions_.insert(WiimotedevShortcuts::PlayerPreviousTrack,
                       tr("Previous track"));
  text_actions_.insert(WiimotedevShortcuts::PlayerPlay, tr("Play"));
  text_actions_.insert(WiimotedevShortcuts::PlayerStop, tr("Stop"));
  text_actions_.insert(WiimotedevShortcuts::PlayerIncVolume,
                       tr("Increase volume"));
  text_actions_.insert(WiimotedevShortcuts::PlayerDecVolume,
                       tr("Decrease volume"));
  text_actions_.insert(WiimotedevShortcuts::PlayerMute, tr("Mute"));
  text_actions_.insert(WiimotedevShortcuts::PlayerPause, tr("Pause"));
  text_actions_.insert(WiimotedevShortcuts::PlayerTogglePause,
                       tr("Play/Pause"));
  text_actions_.insert(WiimotedevShortcuts::PlayerSeekBackward,
                       tr("Seek backward"));
  text_actions_.insert(WiimotedevShortcuts::PlayerSeekForward,
                       tr("Seek forward"));
  text_actions_.insert(WiimotedevShortcuts::PlayerStopAfter, tr("Stop after"));
  text_actions_.insert(WiimotedevShortcuts::PlayerShowOSD, tr("Show OSD"));

  connect(ui_->list,
          SIGNAL(currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*)),
          SLOT(ItemClicked(QTreeWidgetItem*)));

  connect(ui_->wiimotedev_add_action, SIGNAL(clicked()), this,
          SLOT(AddAction()));
  connect(ui_->wiimotedev_delete_action, SIGNAL(clicked()), this,
          SLOT(DeleteAction()));
  connect(ui_->wiimotedev_reload, SIGNAL(clicked()), this,
          SLOT(DefaultSettings()));
}

void WiimoteSettingsPage::AddShortcut(quint64 button, quint32 action) {
  for (const Shortcut& shortcut : actions_) {
    if (shortcut.button == button) {
      QMessageBox::information(this, tr("Information"),
                               QString(tr("Shortcut for %1 already exists"))
                                   .arg(GetReadableWiiremoteSequence(button)),
                               QMessageBox::Ok);
      return;
    }
  }

  Shortcut s;
  s.object = new QTreeWidgetItem(
      ui_->list, QStringList() << GetReadableWiiremoteSequence(button)
                               << text_actions_[action]);
  s.button = button;
  s.action = action;
  actions_ << s;
}

void WiimoteSettingsPage::Load() {
  QSettings s;
  s.beginGroup(WiimotedevShortcuts::kSettingsGroup);
  ui_->wiimotedev_enable->setChecked(s.value("enabled", false).toBool());
  ui_->wiimotedev_active->setChecked(
      s.value("use_active_action", true).toBool());
  ui_->wiimotedev_focus->setChecked(
      s.value("only_when_focused", false).toBool());
  ui_->wiimotedev_notification->setChecked(
      s.value("use_notification", true).toBool());
  ui_->wiimotedev_device->setValue(s.value("device", 1).toUInt());
  bool first_conf = s.value("first_conf", true).toBool();
  s.endGroup();

  if (first_conf) {
    DefaultSettings();
    return;
  }

  s.beginGroup(WiimotedevShortcuts::kActionsGroup);
  ui_->list->clear();
  actions_.clear();

  quint64 fvalue, svalue;
  bool fvalid, svalid;

  for (const QString& str : s.allKeys()) {
    fvalue = str.toULongLong(&fvalid, 10);
    svalue = s.value(str, 0).toULongLong(&svalid);
    if (fvalid && svalid) AddShortcut(fvalue, svalue);
  }
  s.endGroup();

  ui_->list->sortItems(1, Qt::AscendingOrder);
}

void WiimoteSettingsPage::Save() {
  QSettings s;

  s.beginGroup(WiimotedevShortcuts::kActionsGroup);
  s.remove("");
  for (const Shortcut& shortcut : actions_)
    s.setValue(QString::number(shortcut.button), shortcut.action);
  s.endGroup();

  s.beginGroup(WiimotedevShortcuts::kSettingsGroup);
  s.setValue("first_conf", false);
  s.setValue("enabled", ui_->wiimotedev_enable->isChecked());
  s.setValue("only_when_focused", ui_->wiimotedev_focus->isChecked());
  s.setValue("use_active_action", ui_->wiimotedev_active->isChecked());
  s.setValue("use_notification", ui_->wiimotedev_notification->isChecked());
  s.setValue("device", ui_->wiimotedev_device->value());
  s.endGroup();
}

void WiimoteSettingsPage::DefaultSettings() {
  ui_->list->clear();
  actions_.clear();

  AddShortcut(WIIMOTE_BTN_LEFT, WiimotedevShortcuts::PlayerPreviousTrack);
  AddShortcut(WIIMOTE_BTN_RIGHT, WiimotedevShortcuts::PlayerNextTrack);
  AddShortcut(WIIMOTE_BTN_SHIFT_LEFT, WiimotedevShortcuts::PlayerPreviousTrack);
  AddShortcut(WIIMOTE_BTN_SHIFT_RIGHT, WiimotedevShortcuts::PlayerNextTrack);
  AddShortcut(WIIMOTE_BTN_PLUS, WiimotedevShortcuts::PlayerIncVolume);
  AddShortcut(WIIMOTE_BTN_MINUS, WiimotedevShortcuts::PlayerDecVolume);
  AddShortcut(WIIMOTE_BTN_1, WiimotedevShortcuts::PlayerTogglePause);
  AddShortcut(WIIMOTE_BTN_2, WiimotedevShortcuts::PlayerShowOSD);
  AddShortcut(WIIMOTE_BTN_A, WiimotedevShortcuts::WiimotedevActiveDeactive);

  ui_->list->sortItems(1, Qt::AscendingOrder);
}

void WiimoteSettingsPage::ItemClicked(QTreeWidgetItem* selected_item) {
  selected_item_ = selected_item;
}

QString WiimoteSettingsPage::GetReadableWiiremoteSequence(quint64 value) {
  QMapIterator<quint64, QString> text(text_buttons_);

  QStringList list;
  while (text.hasNext()) {
    text.next();
    if ((text.key() & value) == text.key()) list << text.value();
  }

  QString output;
  if (!list.isEmpty()) {
    for (int i = 0; i < (list.count() - 1); ++i) output += list.at(i) + " + ";
    output += list.last();
  } else
    output = tr("Push Wii Remote button");

  return output;
}

void WiimoteSettingsPage::AddAction() {
  emit SetWiimotedevInterfaceActived(false);
  WiimoteShortcutGrabber grabber(0, ui_->wiimotedev_device->value(), this);
  connect(&grabber, SIGNAL(AddShortcut(quint64, quint32)), this,
          SLOT(AddShortcut(quint64, quint32)), Qt::QueuedConnection);
  grabber.exec();
  emit SetWiimotedevInterfaceActived(true);

  ui_->list->sortItems(1, Qt::AscendingOrder);
}

void WiimoteSettingsPage::DeleteAction() {
  for (int i = 0; i < actions_.count(); ++i) {
    if (actions_.at(i).object == selected_item_) {
      delete selected_item_;
      actions_.removeAt(i);
      break;
    }
  }
}