/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2006-2008 Ulyanov Igor <iulyanov@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; version 2 of the License

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 */

#include "selectWeapon.h"

#include "weaponItem.h"

#include "hwconsts.h"

#include <QPushButton>

#include <QGridLayout>

#include <QHBoxLayout>

#include <QLabel>

#include <QBitmap>

#include <QLineEdit>

#include <QSettings>

#include <QMessageBox>

#include <QTabWidget>

#include <math.h>

QImage getAmmoImage(int num)

{

	static QImage ammo(":Ammos.png");

    int x = floor(num/(ammo.height()/32));

    int y = (num-((ammo.height()/32)*x))*32;

    x*=32;

	return ammo.copy(x, y, 32, 32);

}

SelWeaponItem::SelWeaponItem(bool allowInfinite, int iconNum, int wNum, QWidget* parent) :

	QWidget(parent)

{

	QHBoxLayout* hbLayout = new QHBoxLayout(this);

	hbLayout->setSpacing(1);

	hbLayout->setMargin(1);

	QLabel* lbl = new QLabel(this);

	lbl->setPixmap(QPixmap::fromImage(getAmmoImage(iconNum)));

	lbl->setMaximumWidth(30);

	lbl->setGeometry(0, 0, 30, 30);

	hbLayout->addWidget(lbl);

	item = new WeaponItem(QImage(":/res/ammopic.png"), this);

	item->setItemsNum(wNum);

	item->setInfinityState(allowInfinite);

	hbLayout->addWidget(item);

	hbLayout->setStretchFactor(lbl, 1);

	hbLayout->setStretchFactor(item, 99);

	hbLayout->setAlignment(lbl, Qt::AlignLeft | Qt::AlignVCenter);

	hbLayout->setAlignment(item, Qt::AlignLeft | Qt::AlignVCenter);

}

void SelWeaponItem::setItemsNum(const unsigned char num)

{

	item->setItemsNum(num);

}

unsigned char SelWeaponItem::getItemsNum() const

{

	return item->getItemsNum();

}

SelWeaponWidget::SelWeaponWidget(int numItems, QWidget* parent) :

  QFrame(parent),

  m_numItems(numItems)

{

	wconf = new QSettings(cfgdir->absolutePath() + "/weapons.ini", QSettings::IniFormat, this);

	for(int i = 0; i < cDefaultAmmos.size(); ++i)

		wconf->setValue(cDefaultAmmos[i].first, cDefaultAmmos[i].second);

	QStringList keys = wconf->allKeys();

	for(int i = 0; i < keys.size(); i++)

	{

		if (wconf->value(keys[i]).toString().size() != cDefaultAmmoStore->size())

			wconf->remove(keys[i]);

	}

	QString currentState = *cDefaultAmmoStore;

	QTabWidget * tbw = new QTabWidget(this);

	QWidget * page1 = new QWidget(this);

	p1Layout = new QGridLayout(page1);

	p1Layout->setSpacing(1);

	p1Layout->setMargin(1);

	QWidget * page2 = new QWidget(this);

	p2Layout = new QGridLayout(page2);

	p2Layout->setSpacing(1);

	p2Layout->setMargin(1);

	tbw->addTab(page1, tr("Weapon set"));

	tbw->addTab(page2, tr("Probabilities"));

	QGridLayout * pageLayout = new QGridLayout(this);

	pageLayout->addWidget(tbw);

	int j = -1;

	int i = 0, k = 0;

	for(; i < m_numItems; ++i) {

		if (i == 6) continue;

		if (k % 4 == 0) ++j;

		SelWeaponItem * swi = new SelWeaponItem(true, i, currentState[i].digitValue(), this);

		weaponItems[i].append(swi);

		p1Layout->addWidget(swi, j, k % 4);

		SelWeaponItem * pwi = new SelWeaponItem(false, i, currentState[numItems + i].digitValue(), this);

		weaponItems[i].append(pwi);

		p2Layout->addWidget(pwi, j, k % 4);

		++k;

	}

	//pLayout->setRowStretch(5, 100);

	m_name = new QLineEdit(this);

	pageLayout->addWidget(m_name, i, 0, 1, 5);

}

void SelWeaponWidget::setWeapons(const QString& ammo)

{

	for(int i = 0; i < m_numItems; ++i) {

		twi::iterator it = weaponItems.find(i);

		if (it == weaponItems.end()) continue;

		it.value()[0]->setItemsNum(ammo[i].digitValue());

		it.value()[1]->setItemsNum(ammo[m_numItems + i].digitValue());

	}

	update();

}

void SelWeaponWidget::setDefault()

{

	setWeapons(*cDefaultAmmoStore);

}

void SelWeaponWidget::save()

{

	if (m_name->text() == "Default") {

		QMessageBox impossible(QMessageBox::Warning, QMessageBox::tr("Weapons"), QMessageBox::tr("Can not edit default weapon set"));

		impossible.exec();

		return;

	}

	if (m_name->text() == "") return;

	QString state1;

	QString state2;

	for(int i = 0; i < m_numItems; ++i) {

		twi::const_iterator it = weaponItems.find(i);

		int num = it == weaponItems.end() ? 9 : it.value()[0]->getItemsNum(); // 9 is for 'skip turn'

		state1.append(QString::number(num));

		int prob = it == weaponItems.end() ? 0 : it.value()[1]->getItemsNum();

		state2.append(QString::number(prob));

	}

	if (curWeaponsName != "") {

		// remove old entry

		wconf->remove(curWeaponsName);

	}

	wconf->setValue(m_name->text(), state1 + state2);

	emit weaponsChanged();

}

int SelWeaponWidget::operator [] (unsigned int weaponIndex) const

{

	twi::const_iterator it = weaponItems.find(weaponIndex);

	return it == weaponItems.end() ? 9 : it.value()[0]->getItemsNum();

}

QString SelWeaponWidget::getWeaponsString(const QString& name) const

{

	return wconf->value(name).toString();

}

void SelWeaponWidget::deleteWeaponsName()

{

	if (curWeaponsName == "") return;

	if (curWeaponsName == "Default") {

		QMessageBox impossible(QMessageBox::Warning, QMessageBox::tr("Weapons"), QMessageBox::tr("Can not delete default weapon set"));

		impossible.exec();

		return;

	}

	QMessageBox reallyDelete(QMessageBox::Question, QMessageBox::tr("Weapons"), QMessageBox::tr("Really delete this weapon set?"), QMessageBox::Ok | QMessageBox::Cancel);

	if (reallyDelete.exec() == QMessageBox::Ok) {

		wconf->remove(curWeaponsName);

		emit weaponsDeleted();

	}

}

void SelWeaponWidget::setWeaponsName(const QString& name)

{

	if(name != "" && wconf->contains(name)) {

		setWeapons(wconf->value(name).toString());

	}

	curWeaponsName = name;

	m_name->setText(name);

}

QStringList SelWeaponWidget::getWeaponNames() const

{

	return wconf->allKeys();

}