/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            mainwindow.cc
 *
 *  Tue Nov 10 10:21:04 CET 2009
 *  Copyright 2009 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of DrumGizmo.
 *
 *  DrumGizmo 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.
 *
 *  DrumGizmo 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 DrumGizmo; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "mainwindow.h"

#include <iostream>

#include <QHBoxLayout>
#include <QVBoxLayout>

#include <QStatusBar>
#include <QApplication>
#include <QMenuBar>
#include <QFileDialog>

#include "settings.h"
#include "projectdialog.h"
#include "projectserialiser.h"
#include "instrumentwidget.h"

#define MAXVAL 10000000L

MainWindow::MainWindow(Settings& settings)
	: settings(settings)
{
	tab_widget = new QTabWidget();
	tab_widget->setTabsClosable(true);
	tab_widget->setMovable(true);

	auto instr_id1 = project.createInstrument();
	auto instr_id2 = project.createInstrument();
	auto instr_id3 = project.createInstrument();

	auto& instr1 = project.getInstrument(instr_id1);
	auto& instr2 = project.getInstrument(instr_id2);
	auto& instr3 = project.getInstrument(instr_id3);

	tab_widget->addTab(new InstrumentWidget(settings, instr1),
	                   QPixmap(":icons/instrument.png"), "Snare");
	tab_widget->addTab(new InstrumentWidget(settings, instr2),
	                   QPixmap(":icons/instrument.png"), "Kick-l");
	tab_widget->addTab(new InstrumentWidget(settings, instr3),
	                   QPixmap(":icons/instrument.png"), "Floor Tom 1");

	setCentralWidget(tab_widget);

	QMenu* fileMenu = menuBar()->addMenu(tr("&File"));

	QAction* act_new_project = new QAction(tr("&New Project"), this);
	fileMenu->addAction(act_new_project);
	connect(act_new_project, SIGNAL(triggered()), this, SLOT(newProject()));

	QAction* act_load_project = new QAction(tr("&Load Project..."), this);
	fileMenu->addAction(act_load_project);
	connect(act_load_project, SIGNAL(triggered()), this, SLOT(loadProject()));

	QAction* act_save_project = new QAction(tr("&Save Project"), this);
	fileMenu->addAction(act_save_project);
	connect(act_save_project, SIGNAL(triggered()), this, SLOT(saveProject()));

	QAction* act_save_project_as = new QAction(tr("Save Project As..."), this);
	fileMenu->addAction(act_save_project_as);
	connect(act_save_project_as, SIGNAL(triggered()),
	        this, SLOT(saveProjectAs()));

	QAction* act_quit = new QAction(tr("&Quit"), this);
	fileMenu->addAction(act_quit);
	connect(act_quit, SIGNAL(triggered()), this, SLOT(close()));

	instruments_dock = new QDockWidget(tr("Instruments:"), this);
	instruments_dock->setObjectName("instruments_dock");
	instruments_dock->setAllowedAreas(Qt::LeftDockWidgetArea);
	instruments_dock->setFeatures(QDockWidget::DockWidgetMovable);
	QListWidget* instrument_list = new QListWidget();
	instrument_list->addItems({"Snare", "Kick-l", "Floor Tom 1"});
	instruments_dock->setWidget(instrument_list);
	addDockWidget(Qt::LeftDockWidgetArea, instruments_dock);

	channels_dock = new QDockWidget(tr("Channels:"), this);
	channels_dock->setObjectName("channels_dock");
	channels_dock->setAllowedAreas(Qt::LeftDockWidgetArea);
	channels_dock->setFeatures(QDockWidget::DockWidgetMovable);
	QListWidget* channel_list = new QListWidget();
	channel_list->addItems({"AmbL", "AmbR", "Kdrum_back", "Kdrum_front", "Hihat",
	                        "OHL", "OHR", "Ride","Snare_bottom", "Snare_top",
	                        "Tom1", "Tom2", "Tom3"});

	channels_dock->setWidget(channel_list);
	addDockWidget(Qt::LeftDockWidgetArea, channels_dock);

	loadSettings();

	statusBar()->showMessage(tr("Ready"));

	connect(&project, SIGNAL(projectChanged()), this, SLOT(projectChanged()));

	updateWindowTitle();
}

MainWindow::~MainWindow()
{
}

void MainWindow::updateWindowTitle()
{
	auto project_string = project.getProjectName();

	if(project_string == "")
	{
		project_string = tr("[Untitled Project]");
	}

	if(project.getProjectFile() != "")
	{
		project_string += " (" + QFileInfo(project.getProjectFile()).fileName() + ")";
	}

	if(project_dirty)
	{
		project_string += "*";
	}

	setWindowTitle("DGEdit - " + project_string);
}

void MainWindow::closeEvent(QCloseEvent*)
{
	saveSettings();
	QApplication::quit();
}

void MainWindow::loadSettings()
{
	QByteArray state;
	QByteArray geometry;
	settings.loadGeometry(state, geometry);
	restoreGeometry(geometry);
	restoreState(state);
	// TODO: lineed_exportp->setText(settings.loadExportPath());
}

void MainWindow::saveSettings()
{
	settings.saveGeometry(saveState(), saveGeometry());
	// TODO: settings.saveExportPath(lineed_exportp->text());
}

void MainWindow::newProject()
{
	ProjectDialog dlg(this, project);
	dlg.show();
	dlg.exec();
}

void MainWindow::loadProject()
{
	QString filename =
		QFileDialog::getOpenFileName(this,
		                             tr("Load DGEdit Project"),
		                             "",
		                             tr("DGEdit Project Files (*.dgedit)"));
	if(filename == "")
	{
		// User clicked cancel
		return;
	}

	QFile file(filename);
	if(!file.open(QIODevice::ReadOnly))
	{
		return;
	}

	QString xml(file.readAll());
	file.close();

	ProjectSerialiser ser;
	ser.deserialise(xml, project);

	project.setProjectFile(filename);

	project_dirty = false;
	updateWindowTitle();

	statusBar()->showMessage(tr("Loaded"));
}

void MainWindow::saveProject()
{
	QString filename = project.getProjectFile();
	if(filename == "")
	{
		saveProjectAs();
		return;
	}

	QFile file(filename);
	if(!file.open(QIODevice::WriteOnly))
	{
		return;
	}

	ProjectSerialiser ser;
	auto xml = ser.serialise(project);

	file.write(xml.toUtf8());

	project_dirty = false;
	updateWindowTitle();

	statusBar()->showMessage(tr("Saved"));
}

void MainWindow::saveProjectAs()
{
	QString filename
		= QFileDialog::getSaveFileName(this, tr("Save DGEdit Project"),
		                               "",
		                               tr("DGEdit Project Files (*.dgedit)"));

	if(filename == "")
	{
		// User clicked cancel
		return;
	}

	project.setProjectFile(filename);

	saveProject();
}

void MainWindow::projectChanged()
{
	project_dirty = true;
	updateWindowTitle();
}