/*
   client/inventorylistview.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 "core/application.h"
#include "client/inventorylistview.h"
#include "ui/listitem.h"
#include "ui/paint.h"
#include "ui/ui.h"

#include <iomanip>

namespace client {

InventoryListView::InventoryListView(ui::Widget *parent) : ui::ListView (parent)
{
	listview_inventory = 0;
	listview_infotype = 0;
	listview_timestamp = 0;
	listview_infotimestamp = 0;
	listview_showempty = false;
	
	listview_timestamp = 0;
	listview_infotimestamp = 0;
	listview_inventory = 0;
}

InventoryListView::~InventoryListView()
{
}

void InventoryListView::set_inventory(core::Inventory *inventory, core::InfoType *infotype)
{
	const core::Item *selecteditem = (selected() ? selected()->item() : 0);

	ListView::clear();
	
	deselect();
	
	listview_timestamp = 0;
	listview_infotimestamp = 0;
	listview_inventory = inventory;
	listview_infotype = infotype;

	if (!listview_inventory || !listview_infotype) {
		return;
	}
	
	listview_timestamp = inventory->timestamp();
	
	for (core::Inventory::Items::const_iterator it = inventory->items().begin(); it != inventory->items().end(); it++) {
		core::Item *item = (*it);
	
		if (item->info()) {
			
			// this makes sure inventory info gets requested from the server
			core::game()->request_info(item->info()->id());
			
			if (item->info()->timestamp() >	listview_infotimestamp) {
				listview_infotimestamp = item->info()->timestamp();
			}
			
			if ((item->info()->type() == infotype) && (listview_showempty || (item->amount() != 0)))  {
				ui::ListItem *listitem = 0;
				std::string sortkey;
				
				std::ostringstream str;
				
				if (inventory == core::localcontrol()->inventory()) {
					
					// special rules for own ship inventory
					// retreive price from the trader
					const core::Item *trader_item = 0;
					
					if (!item->unrestricted()) {
						trader_item = (core::localplayer()->view() && core::localplayer()->view()->inventory() ? core::localplayer()->view()->inventory()->find(item->info()) : 0);
						if (!trader_item) {
							// not sold here
							str << "^N";
						}
					}
					
					str << item->info()->name();
					
					std::ostringstream str_amount;
					str_amount << item->amount();
					str << '\n' << aux::pad_right(str_amount.str(), 10);
					
					if (item->unrestricted()) {
						// unrestricted items can be sold anywhere
						std::ostringstream std_price;
						std_price << item->price() << " credits";
						str << aux::pad_left(std_price.str(), 12);
					} else if (trader_item) {
						std::ostringstream std_price;
						std_price << trader_item->price() << " credits";
						str << aux::pad_left(std_price.str(), 12);
					}
					
					if (trader_item || item->unrestricted()) {
						sortkey.assign("+");
					} else {
						sortkey.assign("-");
					}
					
				} else {
				
					if (item->amount() == 0) {
						str << "^N";
					}
					
					str << item->info()->name();

					if (item->amount() > 0) {
						std::ostringstream str_amount;
						str_amount << item->amount();
						str << '\n' << aux::pad_right(str_amount.str(), 10);
						
						std::ostringstream std_price;
						std_price << item->price() << " credits";
						str << aux::pad_left(std_price.str(), 12);
						
					} else {
						std::ostringstream std_price;
						std_price << item->price() << " credits";
						str << '\n' << aux::pad_left(std_price.str(), 22);
					}
				
				
					if (item->amount() == 0) {
						sortkey.assign("-");
					} else {
						sortkey.assign("+");
					}
				
				}
				
				sortkey.append(item->info()->label());
				
				listitem = new ui::ListItem(this, str.str().c_str());
				listitem->set_font(ui::root()->font_tiny());
				listitem->set_height(listitem->font()->height() * 3.0f);
				listitem->set_item(item);
				listitem->set_info(item->info());
				listitem->set_sortkey(sortkey);
				
				//if (item->amount() == 0) {
				//	listitem->disable();
				//}
				// preserve previous selection during update
				if (item == selecteditem) {
					ui::ListView::select(listitem);
				}
			}
		}
	}
	
	sort();
	
	event_resize();
	
	emit(EventListViewChanged);
}

bool InventoryListView::verify() const
{
	if (!listview_inventory || !listview_infotype) {
		return true;
	}

	if (listview_timestamp != listview_inventory->timestamp()) {
		return false;
	}

	for (core::Inventory::Items::const_iterator it = listview_inventory->items().begin(); it != listview_inventory->items().end(); it++) {
		core::Item *item = (*it);
		if (item->info() && (item->info()->timestamp() > listview_infotimestamp)) {
			return false;
		}
	}
	return true;
}

void InventoryListView::draw()
{
	if (!verify()) {
		set_inventory(listview_inventory, listview_infotype);
	}
	ListView::draw();
}

} // namespace client