/* Copyright 2013 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <MultiMC.h>
#include "settingsdialog.h"
#include "ui_settingsdialog.h"
#include "logic/JavaUtils.h"

#include <settingsobject.h>
#include <QFileDialog>
#include <QMessageBox>

SettingsDialog::SettingsDialog(QWidget *parent) :
	QDialog(parent),
	ui(new Ui::SettingsDialog)
{
	ui->setupUi(this);
	
	loadSettings(MMC->settings().get());
	updateCheckboxStuff();
}

SettingsDialog::~SettingsDialog()
{
	delete ui;
}
void SettingsDialog::showEvent ( QShowEvent* ev )
{
	QDialog::showEvent(ev);
	adjustSize();
}

void SettingsDialog::updateCheckboxStuff()
{
	ui->windowWidthSpinBox->setEnabled(!ui->maximizedCheckBox->isChecked());
	ui->windowHeightSpinBox->setEnabled(! ui->maximizedCheckBox->isChecked());
}

void SettingsDialog::on_instDirBrowseBtn_clicked()
{
	QString dir = QFileDialog::getExistingDirectory(this, tr("Instance Directory"), 
													ui->instDirTextBox->text());
	if (!dir.isEmpty())
		ui->instDirTextBox->setText(dir);
}

void SettingsDialog::on_modsDirBrowseBtn_clicked()
{
	QString dir = QFileDialog::getExistingDirectory(this, tr("Mods Directory"), 
													ui->modsDirTextBox->text());
	if (!dir.isEmpty())
		ui->modsDirTextBox->setText(dir);
}

void SettingsDialog::on_lwjglDirBrowseBtn_clicked()
{
	QString dir = QFileDialog::getExistingDirectory(this, tr("LWJGL Directory"), 
													ui->lwjglDirTextBox->text());
	if (!dir.isEmpty())
		ui->lwjglDirTextBox->setText(dir);
}

void SettingsDialog::on_compatModeCheckBox_clicked(bool checked)
{
	Q_UNUSED(checked);
	updateCheckboxStuff();
}

void SettingsDialog::on_maximizedCheckBox_clicked(bool checked)
{
	Q_UNUSED(checked);
	updateCheckboxStuff();
}

void SettingsDialog::on_buttonBox_accepted()
{
	applySettings(MMC->settings().get());
}

void SettingsDialog::applySettings(SettingsObject *s)
{
	// Special cases
	
	// Warn about dev builds.
	if (!ui->devBuildsCheckBox->isChecked())
	{
		s->set("UseDevBuilds", false);
	}
	else if (!s->get("UseDevBuilds").toBool())
	{
		int response = QMessageBox::question(this, tr("Development builds"), 
											 tr("Development builds contain experimental features "
											 "and may be unstable. Are you sure you want to enable them?"));
		if (response == QMessageBox::Yes)
		{
			s->set("UseDevBuilds", true);
		}
	}
	
	
	// Updates
	s->set("AutoUpdate", ui->autoUpdateCheckBox->isChecked());
	
	// Folders
	// TODO: Offer to move instances to new instance folder.
	s->set("InstanceDir", ui->instDirTextBox->text());
	s->set("CentralModsDir", ui->modsDirTextBox->text());
	s->set("LWJGLDir", ui->lwjglDirTextBox->text());
	
	// Console
	s->set("ShowConsole", ui->showConsoleCheck->isChecked());
	s->set("AutoCloseConsole", ui->autoCloseConsoleCheck->isChecked());
	
	// Window Size
	s->set("LaunchMaximized", ui->maximizedCheckBox->isChecked());
	s->set("MinecraftWinWidth", ui->windowWidthSpinBox->value());
	s->set("MinecraftWinHeight", ui->windowHeightSpinBox->value());
	
	// Auto Login
	s->set("AutoLogin", ui->autoLoginCheckBox->isChecked());
	
	// Memory
	s->set("MinMemAlloc", ui->minMemSpinBox->value());
	s->set("MaxMemAlloc", ui->maxMemSpinBox->value());
	s->set("PermGen", ui->permGenSpinBox->value());
	
	// Java Settings
	s->set("JavaPath", ui->javaPathTextBox->text());
	s->set("JvmArgs", ui->jvmArgsTextBox->text());
	
	// Custom Commands
	s->set("PreLaunchCommand", ui->preLaunchCmdTextBox->text());
	s->set("PostExitCommand", ui->postExitCmdTextBox->text());
}

void SettingsDialog::loadSettings(SettingsObject *s)
{
	// Updates
	ui->autoUpdateCheckBox->setChecked(s->get("AutoUpdate").toBool());
	ui->devBuildsCheckBox->setChecked(s->get("UseDevBuilds").toBool());
	
	// Folders
	ui->instDirTextBox->setText(s->get("InstanceDir").toString());
	ui->modsDirTextBox->setText(s->get("CentralModsDir").toString());
	ui->lwjglDirTextBox->setText(s->get("LWJGLDir").toString());
	
	// Console
	ui->showConsoleCheck->setChecked(s->get("ShowConsole").toBool());
	ui->autoCloseConsoleCheck->setChecked(s->get("AutoCloseConsole").toBool());
	
	// Window Size
	ui->maximizedCheckBox->setChecked(s->get("LaunchMaximized").toBool());
	ui->windowWidthSpinBox->setValue(s->get("MinecraftWinWidth").toInt());
	ui->windowHeightSpinBox->setValue(s->get("MinecraftWinHeight").toInt());
	
	// Auto Login
	ui->autoLoginCheckBox->setChecked(s->get("AutoLogin").toBool());
	
	// Memory
	ui->minMemSpinBox->setValue(s->get("MinMemAlloc").toInt());
	ui->maxMemSpinBox->setValue(s->get("MaxMemAlloc").toInt());
	ui->permGenSpinBox->setValue(s->get("PermGen").toInt());
	
	// Java Settings
	ui->javaPathTextBox->setText(s->get("JavaPath").toString());
	ui->jvmArgsTextBox->setText(s->get("JvmArgs").toString());
	
	// Custom Commands
	ui->preLaunchCmdTextBox->setText(s->get("PreLaunchCommand").toString());
	ui->postExitCmdTextBox->setText(s->get("PostExitCommand").toString());
}

void SettingsDialog::on_pushButton_clicked()
{
	JavaUtils jut;
	auto javas = jut.FindJavaPaths();

	ui->javaPathTextBox->setText(std::get<JI_PATH>(javas.at(0)));
}

void SettingsDialog::on_btnBrowse_clicked()
{
	QString dir = QFileDialog::getOpenFileName(this, tr("Find Java executable"));
	if(!dir.isNull())
	{
		ui->javaPathTextBox->setText(dir);
	}
}