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

#include "auxiliary/functions.h"
#include "client/chat.h"
#include "core/core.h"
#include "sys/sys.h"
#include "ui/ui.h"

namespace client {

const size_t DEFAULT_MAX_HISTO_LINES = 512;

Chat::Chat(ui::Widget *parent) : ui::Window(parent)
{
	set_label("chat");
	history.clear();
	history.push_back("");
	history_pos = history.rbegin();

	chat_label = new ui::Label(this, "^BSay^F:^B");
	chat_label->set_alignment(ui::AlignLeft | ui::AlignVCenter);
	chat_label->set_border(false);

	chat_input = new ui::InputBox(this);
	chat_input->set_border(false);

	chat_input->set_focus();

	set_background(true);
	set_visible(false);
}

Chat::~Chat()
{
	history.clear();
}


void Chat::show()
{
	Window::show();

	history_pos = history.rbegin();
	(*history_pos).clear();
	chat_input->set_text((*history_pos));	
}

void Chat::toggle()
{
	if (visible())
		hide();
	else
		show();
}

void Chat::resize()
{
	chat_label->set_location(font()->width(), height() / 5.0f);
	chat_label->set_size(width() - font()->width() * 2, height() / 5.0f);

	chat_input->set_location(font()->width(), height() / 5.0f * 3.0f);
	chat_input->set_size(width() - font()->width() * 2, height() / 5.0f);
}

bool Chat::on_keypress(const int key, const unsigned int modifier)
{
	History::reverse_iterator upit;

	switch( key ) {
	case SDLK_ESCAPE:
		if (visible()) {
			hide();
			return true;
		} else {
			return false;
		}
	case SDLK_RETURN:		
		if (chat_input->text().size()) {
			// store input into history
			while (history.size() >= DEFAULT_MAX_HISTO_LINES) {
				history.pop_front();
			}

			if (chat_input->text().c_str()[0] == '/' || chat_input->text().c_str()[0] == '\\') {
				core::cmd() <<  &chat_input->text().c_str()[1] << std::endl;
			} else {
				core::cmd() << "say " << chat_input->text() << std::endl;
			}
			(*history.rbegin()) = chat_input->text();

			history.push_back("");
			history_pos = history.rbegin();
			chat_input->set_text((*history_pos));
		}

		hide();
		return true;
		break;

	case SDLK_UP:
		upit = history_pos;
		++upit;
		if (upit != history.rend()) {
			history_pos = upit;
			chat_input->set_text((*history_pos));
		}
		return true;
		break;

	case SDLK_DOWN:
		if (history_pos != history.rbegin()) {
			--history_pos;
			chat_input->set_text((*history_pos));
		}
		return true;
		break;
	}

	return false;
}

void Chat::event_draw()
{
	if (!core::application()->connected()) {
		hide();
		return;
	}

	if (ui::root()->active())
		return;
	else
		Widget::event_draw();
}

} // namespace client