/*
   client/graphicssettingsmenu.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#include "client/graphicssettingsmenu.h"
#include "core/cvar.h"
#include "ui/button.h"
#include "ui/checkbox.h"
#include "ui/iconbutton.h"
#include "ui/label.h"
#include "ui/ui.h"
#include "math/functions.h"

#include <iostream>

namespace client {
	
GraphicsSettingsMenu::GraphicsSettingsMenu(ui::Widget *parent, const char *label) : ui::Window(parent)
{
	set_label(label);
	set_border(true);
	set_background(true);
	set_font(ui::root()->font_small());
	
	// window title
	_titlelabel = new ui::Label(this);
	_titlelabel->set_label("title");
	_titlelabel->set_background(false);
	_titlelabel->set_border(false);
	_titlelabel->set_font(ui::root()->font_large());
	_titlelabel->set_alignment(ui::AlignCenter);
	_titlelabel->set_text("GRAPHICS SETTINGS");
	
	// close button
	_closebutton = new ui::IconButton(_titlelabel, "bitmaps/icons/window_close");
	
	// content frame
	_frame = new ui::Widget(this);
	_frame->set_label("frame");
	_frame->set_background(true);
	_frame->set_border(true);	
	_frame->set_focus();
	
	// options
	
	_optionslabel = new ui::Label(_frame);
	_optionslabel->set_label("options");
	_optionslabel->set_background(false);
	_optionslabel->set_border(false);
	_optionslabel->set_text("Options");

	_optionfullscreencheckbox = new ui::Checkbox(_frame);
	_optionfullscreencheckbox->set_label("r_fullscreen");
	_optionfullscreencheckbox->set_text("Fullscreen");
	_optionfullscreencheckbox->set_border(true);

	_optiongridcheckbox = new ui::Checkbox(_frame);
	_optiongridcheckbox->set_label("r_grid");
	_optiongridcheckbox->set_text("Draw space grid");
	_optiongridcheckbox->set_border(true);
	
	_optionskycheckbox = new ui::Checkbox(_frame);
	_optionskycheckbox->set_label("r_sky");
	_optionskycheckbox->set_text("Draw sky");
	_optionskycheckbox->set_border(true);
	
	_optionparticlescheckbox = new ui::Checkbox(_frame);
	_optionparticlescheckbox->set_label("r_particles");
	_optionparticlescheckbox->set_text("Draw particles");
	_optionparticlescheckbox->set_border(true);
	
	_optionindicatorscheckbox = new ui::Checkbox(_frame);
	_optionindicatorscheckbox->set_label("r_indicators");
	_optionindicatorscheckbox->set_text("Draw direction indicators");
	_optionindicatorscheckbox->set_border(true);


	_debuglabel = new ui::Label(_frame);
	_debuglabel->set_label("debug");
	_debuglabel->set_background(false);
	_debuglabel->set_border(false);
	_debuglabel->set_text("Debug");

	_debugstatscheckbox = new ui::Checkbox(_frame);
	_debugstatscheckbox->set_label("draw_stats");
	_debugstatscheckbox->set_text("Draw FPS and statistics");
	_debugstatscheckbox->set_border(true);

	_debugwireframecheckbox = new ui::Checkbox(_frame);
	_debugwireframecheckbox->set_label("r_wireframe");
	_debugwireframecheckbox->set_text("Draw wireframe");
	_debugwireframecheckbox->set_border(true);
	
	_debugkeypresscheckbox = new ui::Checkbox(_frame);
	_debugkeypresscheckbox->set_label("draw_keypressq");
	_debugkeypresscheckbox->set_text("Draw keypress events");
	_debugkeypresscheckbox->set_border(true);

	_debugphysicscheckbox = new ui::Checkbox(_frame);
	_debugphysicscheckbox->set_label("draw_physics");
	_debugphysicscheckbox->set_text("Draw physics entities (singleplayer only)");
	_debugphysicscheckbox->set_border(true);
		
	// apply button
	_applybutton = new ui::Button(_frame, "Apply");
	_applybutton->set_label("apply");

	// reset button
	_resetbutton = new ui::Button(_frame, "Reset");
	_resetbutton->set_label("reset");
}

GraphicsSettingsMenu::~GraphicsSettingsMenu()
{
}

void GraphicsSettingsMenu::show()
{
	refresh();
	ui::Window::show();
}

void GraphicsSettingsMenu::refresh()
{
	math::Color color;
	
	// fullscreen
	if (core::Cvar *cv_fullscreen = core::Cvar::find("r_fullscreen"))
	{
		_optionfullscreencheckbox->set_value(cv_fullscreen->value() > 0.0f);
		_optionfullscreencheckbox->set_enabled(true);
	}
	else
	{
		_optionfullscreencheckbox->set_value(false);
		_optionfullscreencheckbox->set_enabled(false);
	}
	
	// space grid
	if (core::Cvar *cv_grid = core::Cvar::find("r_grid"))
	{
		_optiongridcheckbox->set_value(cv_grid->value() > 0.0f);
		_optiongridcheckbox->set_enabled(true);
	}
	else
	{
		_optiongridcheckbox->set_value(false);
		_optiongridcheckbox->set_enabled(false);
	}
	
	// sky
	if (core::Cvar *cv_sky = core::Cvar::find("r_sky"))
	{
		_optionskycheckbox->set_value(cv_sky->value() > 0.0f);
		_optionskycheckbox->set_enabled(true);
	}
	else
	{
		_optionskycheckbox->set_value(false);
		_optionskycheckbox->set_enabled(false);
	}
	
	// particles
	if (core::Cvar *cv_particles = core::Cvar::find("r_particles"))
	{
		_optionparticlescheckbox->set_value(cv_particles->value() > 0.0f);
		_optionparticlescheckbox->set_enabled(true);
	}
	else
	{
		_optionparticlescheckbox->set_value(false);
		_optionparticlescheckbox->set_enabled(false);
	}
	
	// indicators
	if (core::Cvar *cv_indicators = core::Cvar::find("r_indicators"))
	{
		_optionindicatorscheckbox->set_value(cv_indicators->value() > 0.0f);
		_optionindicatorscheckbox->set_enabled(true);
	}
	else
	{
		_optionindicatorscheckbox->set_value(false);
		_optionindicatorscheckbox->set_enabled(false);
	}
	
	// stats
	if (core::Cvar *cv_stats = core::Cvar::find("draw_stats"))
	{
		_debugstatscheckbox->set_value(cv_stats->value() > 0.0f);
		_debugstatscheckbox->set_enabled(true);
	}
	else
	{
		_debugstatscheckbox->set_value(false);
		_debugstatscheckbox->set_enabled(false);
	}
	
	// wireframe
	if (core::Cvar *cv_wireframe = core::Cvar::find("r_wireframe"))
	{
		_debugwireframecheckbox->set_value(cv_wireframe->value() > 0.0f);
		_debugwireframecheckbox->set_enabled(true);
	}
	else
	{
		_debugwireframecheckbox->set_value(false);
		_debugwireframecheckbox->set_enabled(false);
	}
	
	// keypress
	if (core::Cvar *cv_keypress = core::Cvar::find("draw_keypress"))
	{
		_debugkeypresscheckbox->set_value(cv_keypress->value() > 0.0f);
		_debugkeypresscheckbox->set_enabled(true);
	}
	else
	{
		_debugkeypresscheckbox->set_value(false);
		_debugkeypresscheckbox->set_enabled(false);
	}
	
	// physics
	if (core::Cvar *cv_physics = core::Cvar::find("r_physics"))
	{
		_debugphysicscheckbox->set_value(cv_physics->value() > 0.0f);
		_debugphysicscheckbox->set_enabled(true);
	}
	else
	{
		_debugphysicscheckbox->set_value(false);
		_debugphysicscheckbox->set_enabled(false);
	}
	
}

void GraphicsSettingsMenu::apply()
{
	
	// fullscreen
	if (core::Cvar *cv_fullscreen = core::Cvar::find("r_fullscreen"))
	{
		cv_fullscreen->assign(_optionfullscreencheckbox->value() ? 1.0f : 0.0f);
	}

	// space grid
	if (core::Cvar *cv_grid = core::Cvar::find("r_grid"))
	{
		cv_grid->assign(_optiongridcheckbox->value() ? 1.0f : 0.0f);
	}
	
	// sky
	if (core::Cvar *cv_sky = core::Cvar::find("r_sky"))
	{
		cv_sky->assign(_optionskycheckbox->value() ? 1.0f : 0.0f);
	}
	
	// particles
	if (core::Cvar *cv_particles = core::Cvar::find("r_particles"))
	{
		cv_particles->assign(_optionparticlescheckbox->value() ? 1.0f : 0.0f);
	}
	
	// indicators
	if (core::Cvar *cv_indicators = core::Cvar::find("r_indicators"))
	{
		cv_indicators->assign(_optionindicatorscheckbox->value() ? 1.0f : 0.0f);
	}
	
	// stats
	if (core::Cvar *cv_stats = core::Cvar::find("draw_stats"))
	{
		cv_stats->assign(_debugstatscheckbox->value() ? 1.0f : 0.0f);
	}
	
	// wireframe
	if (core::Cvar *cv_wireframe = core::Cvar::find("r_wireframe"))
	{
		cv_wireframe->assign(_debugwireframecheckbox->value() ? 1.0f : 0.0f);
	}
	
	// keypress
	if (core::Cvar *cv_keypress = core::Cvar::find("draw_keypress"))
	{
		cv_keypress->assign(_debugkeypresscheckbox->value() ? 1.0f : 0.0f);
	}
	
	// physics
	if (core::Cvar *cv_physics = core::Cvar::find("r_physics"))
	{
		cv_physics->assign(_debugphysicscheckbox->value() ? 1.0f : 0.0f);
	}
}

void GraphicsSettingsMenu::resize()
{
	const float padding = ui::UI::padding;
	const float margin = ui::UI::margin;
		
	// resize title label
	_titlelabel->set_size(width() - padding * 2.0f, _titlelabel->font()->height());	
	_titlelabel->set_location(padding, padding);

	// resize close button
	_closebutton->set_size(_titlelabel->font()->height(), _titlelabel->font()->height());
	_closebutton->set_location(_titlelabel->width() - _closebutton->width(), 0);
	
	// resize content frame
	_frame->set_location(_titlelabel->left(), _titlelabel->bottom() + padding);	
	_frame->set_size(_titlelabel->width(), height() - _titlelabel->bottom() - padding * 2.0f);
	
	//---- inside _frame ----
	
	const float h = _frame->font()->height() + margin;
	const float w = _frame->width() - ui::UI::elementsize.width() - 3.0f * padding;
	
	// OPTIONS
	_optionslabel->set_location(padding, padding);
	_optionslabel->set_size(ui::UI::elementsize.width(),h);
	
	// fullscreen
	_optionfullscreencheckbox->set_location(_optionslabel->right() + padding, _optionslabel->top());
	_optionfullscreencheckbox->set_size(w, h);
	
	// grid
	_optiongridcheckbox->set_location(_optionslabel->right() + padding, _optionfullscreencheckbox->bottom() + margin);
	_optiongridcheckbox->set_size(w, h);
	
	// sky
	_optionskycheckbox->set_location(_optionslabel->right() + padding, _optiongridcheckbox->bottom() + margin);
	_optionskycheckbox->set_size(w, h);
	
	// particles
	_optionparticlescheckbox->set_location(_optionslabel->right() + padding, _optionskycheckbox->bottom() + margin);
	_optionparticlescheckbox->set_size(w, h);
	
	// indicators
	_optionindicatorscheckbox->set_location(_optionslabel->right() + padding, _optionparticlescheckbox->bottom() + margin);
	_optionindicatorscheckbox->set_size(w, h);
	
	// DEBUG OPTIONS
	_debuglabel->set_location(padding, _optionindicatorscheckbox->bottom() + padding);
	_debuglabel->set_size(ui::UI::elementsize.width(), h);
	
	// stats
	_debugstatscheckbox->set_location(_debuglabel->right() + padding, _debuglabel->top());
	_debugstatscheckbox->set_size(w, h);
	
	// wireframe
	_debugwireframecheckbox->set_location(_debuglabel->right() + padding, _debugstatscheckbox->bottom() + margin);
	_debugwireframecheckbox->set_size(w,h);
	
	// keypress
	_debugkeypresscheckbox->set_location(_debuglabel->right() + padding, _debugwireframecheckbox->bottom() + margin);
	_debugkeypresscheckbox->set_size(w,h);
	
	// physics
	_debugphysicscheckbox->set_location(_debuglabel->right() + padding, _debugkeypresscheckbox->bottom() + margin);
	_debugphysicscheckbox->set_size(w,h);
	
	
	// resize apply button
	_applybutton->set_size(ui::UI::elementsize);
	_applybutton->set_location(
		(_frame->width() - 2.0f *  ui::UI::elementsize.width() - padding) * 0.5f,
		_frame->height() - _applybutton->height() - padding
	);
	
	// resize reset button
	_resetbutton->set_size(ui::UI::elementsize);
	_resetbutton->set_location(_applybutton->right() + padding, _applybutton->top());
	
}

bool GraphicsSettingsMenu::on_emit(ui::Widget *sender, const ui::Widget::Event event, void *data)
{
	if (sender == _closebutton)
	{
		if (event == ui::Widget::EventButtonClicked)
		{
			parent()->hide();
			return true;
		}
	} 
	else if (sender == _applybutton)
	{
		if (event == ui::Widget::EventButtonClicked)
		{
			apply();
			return true;
		}
	}
	else if (sender == _resetbutton)
	{
		if (event == ui::Widget::EventButtonClicked)
		{
			refresh();
			return true;
		}
	}
	
	return Window::on_emit(sender, event, data);
}

} // namespace client