/*
 * Copyright 2008-2009 Ben Boeckel <MathStuf@gmail.com>
 * 
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

// Header include
#include "ItemUI.h"

// Sigmodr core widget includes
#include <sigmodr/corewidgets/ScriptWidget.h>

// Sigmod includes
#include <sigmod/Game.h>
#include <sigmod/Item.h>
#include <sigmod/ItemType.h>
#include <sigmod/Rules.h>

// KDE includes
#include <KComboBox>
#include <KIntNumInput>
#include <KLineEdit>

// Qt includes
#include <QtCore/QFile>
#include <QtGui/QCheckBox>
#include <QtGui/QVBoxLayout>
#include <QtUiTools/QUiLoader>

using namespace Sigcore;
using namespace Sigmod;
using namespace Sigmodr::CoreWidgets;
using namespace Sigmodr::Widgets;

ItemUI::ItemUI(Item* item, QWidget* parent) :
        ObjectUI(parent),
        m_lastType(-1)
{
    setObjects(item, new Item(*item));
}

void ItemUI::initGui()
{
    QFile file(":/gui/item.ui");
    file.open(QFile::ReadOnly);
    QWidget *formWidget = QUiLoader().load(&file, this);
    file.close();
    ui_name = formWidget->findChild<KLineEdit*>("varName");
    ui_sellable = formWidget->findChild<QCheckBox*>("varSellable");
    ui_type = formWidget->findChild<KComboBox*>("varType");
    ui_price = formWidget->findChild<KIntNumInput*>("varPrice");
    ui_sellPrice = formWidget->findChild<KIntNumInput*>("varSellPrice");
    ui_weight = formWidget->findChild<KIntNumInput*>("varWeight");
    ui_description = formWidget->findChild<KLineEdit*>("varDescription");
    ui_script = formWidget->findChild<ScriptWidget*>("varScript");
    connect(ui_name, SIGNAL(textChanged(QString)), this, SLOT(nameChanged(QString)));
    connect(ui_sellable, SIGNAL(toggled(bool)), this, SLOT(sellableChanged(bool)));
    connect(ui_type, SIGNAL(currentIndexChanged(int)), this, SLOT(typeChanged(int)));
    connect(ui_price, SIGNAL(valueChanged(int)), this, SLOT(priceChanged(int)));
    connect(ui_sellPrice, SIGNAL(valueChanged(int)), this, SLOT(sellPriceChanged(int)));
    connect(ui_weight, SIGNAL(valueChanged(int)), this, SLOT(weightChanged(int)));
    connect(ui_description, SIGNAL(textChanged(QString)), this, SLOT(descriptionChanged(QString)));
    connect(ui_script, SIGNAL(valueChanged(Sigcore::Script)), this, SLOT(scriptChanged(Sigcore::Script)));
    QVBoxLayout* layout = new QVBoxLayout;
    layout->addWidget(formWidget);
    setLayout(layout);
}

void ItemUI::refreshGui()
{
    const bool blocked = ui_type->blockSignals(true);
    ui_type->clear();
    for (int i = 0; i < game()->itemTypeCount(); ++i)
        ui_type->addItem(game()->itemType(i)->name());
    ui_type->blockSignals(blocked);
    ui_price->setMaximum(game()->rules()->maxMoney());
}

void ItemUI::setGui()
{
    const bool resetWeight = (qobject_cast<Item*>(modified())->type() != m_lastType);
    ui_name->setText(qobject_cast<Item*>(modified())->name());
    ui_sellable->setCheckState(qobject_cast<Item*>(modified())->sellable() ? Qt::Checked : Qt::Unchecked);
    ui_type->setCurrentIndex(game()->itemTypeIndex(qobject_cast<Item*>(modified())->type()));
    m_lastType = qobject_cast<Item*>(modified())->type();
    ui_price->setValue(qobject_cast<Item*>(modified())->price());
    ui_sellPrice->setValue(qobject_cast<Item*>(modified())->sellPrice());
    ui_sellPrice->setEnabled(qobject_cast<Item*>(modified())->sellable());
    if (resetWeight)
    {
        const ItemType* itemType = game()->itemTypeById(qobject_cast<Item*>(modified())->type());
        if (itemType)
            ui_weight->setMaximum(itemType->maxWeight());
    }
    ui_weight->setValue(qobject_cast<Item*>(modified())->weight());
    ui_description->setText(qobject_cast<Item*>(modified())->description());
    ui_script->setValue(qobject_cast<Item*>(modified())->script());
}

void ItemUI::apply()
{
    *qobject_cast<Item*>(original()) = *qobject_cast<Item*>(modified());
    emit(changed(false));
}

void ItemUI::discard()
{
    *qobject_cast<Item*>(modified()) = *qobject_cast<Item*>(original());
    setGui();
    emit(changed(false));
}

void ItemUI::nameChanged(const QString& name)
{
    const int cursor = ui_name->cursorPosition();
    qobject_cast<Item*>(modified())->setName(name);
    ui_name->setCursorPosition(cursor);
}

void ItemUI::sellableChanged(const bool sellable)
{
    qobject_cast<Item*>(modified())->setSellable(sellable);
}

void ItemUI::typeChanged(const int type)
{
    if (0 <= type)
        qobject_cast<Item*>(modified())->setType(game()->itemType(type)->id());
}

void ItemUI::priceChanged(const int price)
{
    qobject_cast<Item*>(modified())->setPrice(price);
}

void ItemUI::sellPriceChanged(const int sellPrice)
{
    qobject_cast<Item*>(modified())->setSellPrice(sellPrice);
}

void ItemUI::weightChanged(const int weight)
{
    qobject_cast<Item*>(modified())->setWeight(weight);
}

void ItemUI::descriptionChanged(const QString& description)
{
    const int cursor = ui_description->cursorPosition();
    qobject_cast<Item*>(modified())->setDescription(description);
    ui_description->setCursorPosition(cursor);
}

void ItemUI::scriptChanged(const Script& script)
{
    qobject_cast<Item*>(modified())->setScript(script);
}