/*
 * CTradeWindow.cpp, part of VCMI engine
 *
 * Authors: listed in file AUTHORS in main folder
 *
 * License: GNU General Public License v2.0 or later
 * Full text of license available in license.txt file, in main folder
 *
 */
#include "StdInc.h"
#include "CTradeWindow.h"

#include "CAdvmapInterface.h"

#include "../gui/CGuiHandler.h"
#include "../gui/CCursorHandler.h"
#include "../widgets/Images.h"

#include "../CGameInfo.h"
#include "../CPlayerInterface.h"

#include "../../CCallback.h"

#include "../../lib/VCMI_Lib.h"
#include "../../lib/CArtHandler.h"
#include "../../lib/CCreatureHandler.h"
#include "../../lib/CGeneralTextHandler.h"
#include "../../lib/CHeroHandler.h"
#include "../../lib/CGameState.h"
#include "../../lib/mapObjects/CGHeroInstance.h"
#include "../../lib/mapObjects/CGTownInstance.h"
#include "../../lib/mapObjects/CGMarket.h"

CTradeWindow::CTradeableItem::CTradeableItem(Point pos, EType Type, int ID, bool Left, int Serial):
	CIntObject(LCLICK | HOVER | RCLICK, pos),
	type(EType(-1)),// set to invalid, will be corrected in setType
	id(ID),
	serial(Serial),
	left(Left)
{
	downSelection = false;
	hlp = nullptr;
	image = nullptr;
	setType(Type);
}

void CTradeWindow::CTradeableItem::setType(EType newType)
{
	if (type != newType)
	{
		OBJ_CONSTRUCTION_CAPTURING_ALL;
		type = newType;
		delete image;

		if (getIndex() < 0)
		{
			image = new CAnimImage(getFilename(), 0);
			image->disable();
		}
		else
			image = new CAnimImage(getFilename(), getIndex());
	}
}

void CTradeWindow::CTradeableItem::setID(int newID)
{
	if (id != newID)
	{
		id = newID;
		if (image)
		{
			int index = getIndex();
			if (index < 0)
				image->disable();
			else
			{
				image->enable();
				image->setFrame(index);
			}
		}
	}
}

std::string CTradeWindow::CTradeableItem::getFilename()
{
	switch(type)
	{
	case RESOURCE:
		return "RESOURCE";
	case PLAYER:
		return "CREST58";
	case ARTIFACT_TYPE:
	case ARTIFACT_PLACEHOLDER:
	case ARTIFACT_INSTANCE:
		return "artifact";
	case CREATURE:
		return "TWCRPORT";
	default:
		return "";
	}
}

int CTradeWindow::CTradeableItem::getIndex()
{
	if (id < 0)
		return -1;

	switch(type)
	{
	case RESOURCE:
	case PLAYER:
		return id;
	case ARTIFACT_TYPE:
	case ARTIFACT_INSTANCE:
	case ARTIFACT_PLACEHOLDER:
		return VLC->arth->artifacts[id]->iconIndex;
	case CREATURE:
		return VLC->creh->creatures[id]->iconIndex;
	default:
		return -1;
	}
}

void CTradeWindow::CTradeableItem::showAll(SDL_Surface * to)
{
	CTradeWindow *mw = dynamic_cast<CTradeWindow *>(parent);
	assert(mw);

	Point posToBitmap;
	Point posToSubCenter;

	switch(type)
	{
	case RESOURCE:
		posToBitmap = Point(19,9);
		posToSubCenter = Point(36, 59);
		break;
	case CREATURE_PLACEHOLDER:
	case CREATURE:
		posToSubCenter = Point(29, 76);
		// Positing of unit count is different in Altar of Sacrifice and Freelancer's Guild
		if(mw->mode == EMarketMode::CREATURE_EXP && downSelection)
			posToSubCenter.y += 5;
		break;
	case PLAYER:
		posToSubCenter = Point(31, 76);
		break;
	case ARTIFACT_PLACEHOLDER:
	case ARTIFACT_INSTANCE:
		posToSubCenter = Point(19, 55);
		if(downSelection)
			posToSubCenter.y += 8;
		break;
	case ARTIFACT_TYPE:
		posToSubCenter = Point(19, 58);
		break;
	}

	if (image)
	{
		image->moveTo(pos.topLeft() + posToBitmap);
		CIntObject::showAll(to);
	}

	printAtMiddleLoc(subtitle, posToSubCenter, FONT_SMALL, Colors::WHITE, to);
}

void CTradeWindow::CTradeableItem::clickLeft(tribool down, bool previousState)
{
	CTradeWindow *mw = dynamic_cast<CTradeWindow *>(parent);
	assert(mw);
	if(down)
	{

		if(type == ARTIFACT_PLACEHOLDER)
		{
			CAltarWindow *aw = static_cast<CAltarWindow *>(mw);
			if(const CArtifactInstance *movedArt = aw->arts->commonInfo->src.art)
			{
				aw->moveFromSlotToAltar(aw->arts->commonInfo->src.slotID, this, movedArt);
			}
			else if(const CArtifactInstance *art = getArtInstance())
			{
				aw->arts->commonInfo->src.AOH = aw->arts;
				aw->arts->commonInfo->src.art = art;
				aw->arts->commonInfo->src.slotID = aw->hero->getArtPos(art);
				aw->arts->markPossibleSlots(art);

				//aw->arts->commonInfo->dst.AOH = aw->arts;
				CCS->curh->dragAndDropCursor(new CAnimImage("artifact", art->artType->iconIndex));

				aw->arts->artifactsOnAltar.erase(art);
				setID(-1);
				subtitle = "";
				aw->deal->block(!aw->arts->artifactsOnAltar.size());
			}

			aw->calcTotalExp();
			return;
		}
		if(left)
		{
			if(mw->hLeft != this)
				mw->hLeft = this;
			else
				return;
		}
		else
		{
			if(mw->hRight != this)
				mw->hRight = this;
			else
				return;
		}
		mw->selectionChanged(left);
	}
}

void CTradeWindow::CTradeableItem::showAllAt(const Point &dstPos, const std::string &customSub, SDL_Surface * to)
{
	Rect oldPos = pos;
	std::string oldSub = subtitle;
	downSelection = true;

	moveTo(dstPos);
	subtitle = customSub;
	showAll(to);

	downSelection = false;
	moveTo(oldPos.topLeft());
	subtitle = oldSub;
}

void CTradeWindow::CTradeableItem::hover(bool on)
{
	if(!on)
	{
		GH.statusbar->clear();
		return;
	}

	switch(type)
	{
	case CREATURE:
	case CREATURE_PLACEHOLDER:
		GH.statusbar->setText(boost::str(boost::format(CGI->generaltexth->allTexts[481]) % CGI->creh->creatures[id]->namePl));
		break;
	case ARTIFACT_PLACEHOLDER:
		if(id < 0)
			GH.statusbar->setText(CGI->generaltexth->zelp[582].first);
		else
			GH.statusbar->setText(CGI->arth->artifacts[id]->Name());
		break;
	}
}

void CTradeWindow::CTradeableItem::clickRight(tribool down, bool previousState)
{
	if(down)
	{
		switch(type)
		{
		case CREATURE:
		case CREATURE_PLACEHOLDER:
			//GH.statusbar->print(boost::str(boost::format(CGI->generaltexth->allTexts[481]) % CGI->creh->creatures[id]->namePl));
			break;
		case ARTIFACT_TYPE:
		case ARTIFACT_PLACEHOLDER:
			//TODO: it's would be better for market to contain actual CArtifactInstance and not just ids of certain artifact type so we can use getEffectiveDescription.
			if(id >= 0)
				adventureInt->handleRightClick(CGI->arth->artifacts[id]->Description(), down);
			break;
		}
	}
}

std::string CTradeWindow::CTradeableItem::getName(int number) const
{
	switch(type)
	{
	case PLAYER:
		return CGI->generaltexth->capColors[id];
	case RESOURCE:
		return CGI->generaltexth->restypes[id];
	case CREATURE:
		if(number == 1)
			return CGI->creh->creatures[id]->nameSing;
		else
			return CGI->creh->creatures[id]->namePl;
	case ARTIFACT_TYPE:
	case ARTIFACT_INSTANCE:
		return CGI->arth->artifacts[id]->Name();
	}
	assert(0);
	return "";
}

const CArtifactInstance * CTradeWindow::CTradeableItem::getArtInstance() const
{
	switch(type)
	{
	case ARTIFACT_PLACEHOLDER:
	case ARTIFACT_INSTANCE:
		return (const CArtifactInstance *)hlp;
	default:
		return nullptr;
	}
}

void CTradeWindow::CTradeableItem::setArtInstance(const CArtifactInstance *art)
{
	assert(type == ARTIFACT_PLACEHOLDER || type == ARTIFACT_INSTANCE);
	hlp = art;
	if(art)
		setID(art->artType->id);
	else
		setID(-1);
}

CTradeWindow::CTradeWindow(std::string bgName, const IMarket *Market, const CGHeroInstance *Hero, EMarketMode::EMarketMode Mode):
	CWindowObject(PLAYER_COLORED, bgName),
	market(Market),
	hero(Hero),
	arts(nullptr),
	hLeft(nullptr),
	hRight(nullptr),
	ok(nullptr),
	max(nullptr),
	deal(nullptr),
	slider(nullptr),
	readyToTrade(false)
{
	type |= BLOCK_ADV_HOTKEYS;
	mode = Mode;
	initTypes();
}

void CTradeWindow::initTypes()
{
	switch(mode)
	{
	case EMarketMode::RESOURCE_RESOURCE:
		itemsType[1] = RESOURCE;
		itemsType[0] = RESOURCE;
		break;
	case EMarketMode::RESOURCE_PLAYER:
		itemsType[1] = RESOURCE;
		itemsType[0] = PLAYER;
		break;
	case EMarketMode::CREATURE_RESOURCE:
		itemsType[1] = CREATURE;
		itemsType[0] = RESOURCE;
		break;
	case EMarketMode::RESOURCE_ARTIFACT:
		itemsType[1] = RESOURCE;
		itemsType[0] = ARTIFACT_TYPE;
		break;
	case EMarketMode::ARTIFACT_RESOURCE:
		itemsType[1] = ARTIFACT_INSTANCE;
		itemsType[0] = RESOURCE;
		break;
	case EMarketMode::CREATURE_EXP:
		itemsType[1] = CREATURE;
		itemsType[0] = CREATURE_PLACEHOLDER;
		break;
	case EMarketMode::ARTIFACT_EXP:
		itemsType[1] = ARTIFACT_TYPE;
		itemsType[0] = ARTIFACT_PLACEHOLDER;
		break;
	}
}

void CTradeWindow::initItems(bool Left)
{
	if(Left && (itemsType[1] == ARTIFACT_TYPE || itemsType[1] == ARTIFACT_INSTANCE))
	{
		int xOffset = 0, yOffset = 0;
		if(mode == EMarketMode::ARTIFACT_RESOURCE)
		{
			xOffset = -361;
			yOffset = +46;

			auto  hlp = new CTradeableItem(Point(137, 469), itemsType[Left], -1, 1, 0);
			hlp->recActions &= ~(UPDATE | SHOWALL);
			items[Left].push_back(hlp);
		}
		else //ARTIFACT_EXP
		{
			xOffset = -363;
			yOffset = -12;
		}

		BLOCK_CAPTURING;
		arts = new CArtifactsOfHero(Point(pos.x+xOffset, pos.y+yOffset));
		arts->commonInfo = std::make_shared<CArtifactsOfHero::SCommonPart>();
		arts->commonInfo->participants.insert(arts);
		arts->recActions = 255;
		arts->setHero(hero);
		arts->allowedAssembling = false;
		addChild(arts);
		artSets.push_back(arts);

		if(mode == EMarketMode::ARTIFACT_RESOURCE)
			arts->highlightModeCallback = std::bind(&CTradeWindow::artifactSelected, this, _1);
		return;
	}

	std::vector<int> *ids = getItemsIds(Left);
	std::vector<Rect> pos;
	int amount = -1;

	getPositionsFor(pos, Left, itemsType[Left]);

	if(Left || !ids)
		amount = 7;
	else
		amount = ids->size();

	if(ids)
		vstd::amin(amount, ids->size());

	for(int j=0; j<amount; j++)
	{
		int id = (ids && ids->size()>j) ? (*ids)[j] : j;
		if(id < 0 && mode != EMarketMode::ARTIFACT_EXP)  //when sacrificing artifacts we need to prepare empty slots
			continue;

		auto  hlp = new CTradeableItem(pos[j].topLeft(), itemsType[Left], id, Left, j);
		hlp->pos = pos[j] + this->pos.topLeft();
		items[Left].push_back(hlp);
	}
	vstd::clear_pointer(ids);
	initSubs(Left);
}

std::vector<int> *CTradeWindow::getItemsIds(bool Left)
{
	std::vector<int> *ids = nullptr;

	if(mode == EMarketMode::ARTIFACT_EXP)
		return new std::vector<int>(22, -1);

	if(Left)
	{
		switch(itemsType[1])
		{
		case CREATURE:
			ids = new std::vector<int>;
			for(int i = 0; i < 7; i++)
			{
				if(const CCreature *c = hero->getCreature(SlotID(i)))
					ids->push_back(c->idNumber);
				else
					ids->push_back(-1);
			}
			break;
		}
	}
	else
	{
		switch(itemsType[0])
		{
		case PLAYER:
			ids = new std::vector<int>;
			for(int i = 0; i < PlayerColor::PLAYER_LIMIT_I; i++)
				if(PlayerColor(i) != LOCPLINT->playerID && LOCPLINT->cb->getPlayerStatus(PlayerColor(i)) == EPlayerStatus::INGAME)
					ids->push_back(i);
			break;

		case ARTIFACT_TYPE:
			ids = new std::vector<int>(market->availableItemsIds(mode));
			break;
		}
	}

	return ids;
}

void CTradeWindow::getPositionsFor(std::vector<Rect> &poss, bool Left, EType type) const
{
	if(mode == EMarketMode::ARTIFACT_EXP && !Left)
	{
		//22 boxes, 5 in row, last row: two boxes centered
		int h, w, x, y, dx, dy;
		h = w = 44;
		x = 317;
		y = 53;
		dx = 54;
		dy = 70;
		for (int i = 0; i < 4 ; i++)
			for (int j = 0; j < 5 ; j++)
				poss.push_back(Rect(x + dx*j, y + dy*i, w, h));

		poss.push_back(Rect(x + dx*1.5, y + dy*4, w, h));
		poss.push_back(Rect(x + dx*2.5, y + dy*4, w, h));
	}
	else
	{
		//seven boxes:
		//  X  X  X
		//  X  X  X
		//     X
		int h, w, x, y, dx, dy;
		int leftToRightOffset;
		getBaseForPositions(type, dx, dy, x, y, h, w, !Left, leftToRightOffset);

		const std::vector<Rect> tmp =
		{
			genRect(h, w, x, y), genRect(h, w, x + dx, y), genRect(h, w, x + 2*dx, y),
			genRect(h, w, x, y + dy), genRect(h, w, x + dx, y + dy), genRect(h, w, x + 2*dx, y + dy),
			genRect(h, w, x + dx, y + 2*dy)
		};

		vstd::concatenate(poss, tmp);

		if(!Left)
		{
			for(Rect &r : poss)
				r.x += leftToRightOffset;
		}
	}
}

void CTradeWindow::initSubs(bool Left)
{
	for(CTradeableItem *t : items[Left])
	{
		if(Left)
		{
			switch(itemsType[1])
			{
			case CREATURE:
				t->subtitle = boost::lexical_cast<std::string>(hero->getStackCount(SlotID(t->serial)));
				break;
			case RESOURCE:
				t->subtitle = boost::lexical_cast<std::string>(LOCPLINT->cb->getResourceAmount(static_cast<Res::ERes>(t->serial)));
				break;
			}
		}
		else //right side
		{
			if(itemsType[0] == PLAYER)
			{
				t->subtitle = CGI->generaltexth->capColors[t->id];
			}
			else if(hLeft)//artifact, creature
			{
				int h1, h2; //hlp variables for getting offer
				market->getOffer(hLeft->id, t->id, h1, h2, mode);
				if(t->id != hLeft->id || mode != EMarketMode::RESOURCE_RESOURCE) //don't allow exchanging same resources
				{
					std::ostringstream oss;
					oss << h2;
					if(h1!=1)
						oss << "/" << h1;
					t->subtitle = oss.str();
				}
				else
					t->subtitle = CGI->generaltexth->allTexts[164]; // n/a
			}
			else
				t->subtitle = "";
		}
	}
}

void CTradeWindow::showAll(SDL_Surface * to)
{
	CWindowObject::showAll(to);

	if(hRight)
		CSDL_Ext::drawBorder(to,hRight->pos.x-1,hRight->pos.y-1,hRight->pos.w+2,hRight->pos.h+2,int3(255,231,148));
	if(hLeft && hLeft->type != ARTIFACT_INSTANCE)
		CSDL_Ext::drawBorder(to,hLeft->pos.x-1,hLeft->pos.y-1,hLeft->pos.w+2,hLeft->pos.h+2,int3(255,231,148));

	if(readyToTrade)
	{
		hLeft->showAllAt(pos.topLeft() + selectionOffset(true), selectionSubtitle(true), to);
		hRight->showAllAt(pos.topLeft() + selectionOffset(false), selectionSubtitle(false), to);
	}
}

void CTradeWindow::removeItems(const std::set<CTradeableItem *> &toRemove)
{
	for(CTradeableItem *t : toRemove)
		removeItem(t);
}

void CTradeWindow::removeItem(CTradeableItem * t)
{
	items[t->left] -= t;
	delete t;

	if(hRight == t)
	{
		hRight = nullptr;
		selectionChanged(false);
	}
}

void CTradeWindow::getEmptySlots(std::set<CTradeableItem *> &toRemove)
{
	for(CTradeableItem *t : items[1])
		if(!hero->getStackCount(SlotID(t->serial)))
			toRemove.insert(t);
}

void CTradeWindow::setMode(EMarketMode::EMarketMode Mode)
{
	const IMarket *m = market;
	const CGHeroInstance *h = hero;
	CTradeWindow *nwindow = nullptr;

	GH.popIntTotally(this);

	switch(Mode)
	{
	case EMarketMode::CREATURE_EXP:
	case EMarketMode::ARTIFACT_EXP:
		nwindow = new CAltarWindow(m, h, Mode);
		break;
	default:
		nwindow = new CMarketplaceWindow(m, h, Mode);
		break;
	}

	GH.pushInt(nwindow);
}

void CTradeWindow::artifactSelected(CHeroArtPlace *slot)
{
	assert(mode == EMarketMode::ARTIFACT_RESOURCE);
	items[1][0]->setArtInstance(slot->ourArt);
	if(slot->ourArt && !slot->locked)
		hLeft = items[1][0];
	else
		hLeft = nullptr;

	selectionChanged(true);
}

std::string CMarketplaceWindow::getBackgroundForMode(EMarketMode::EMarketMode mode)
{
	switch(mode)
	{
	case EMarketMode::RESOURCE_RESOURCE:
		return "TPMRKRES.bmp";
	case EMarketMode::RESOURCE_PLAYER:
		return "TPMRKPTS.bmp";
	case EMarketMode::CREATURE_RESOURCE:
		return "TPMRKCRS.bmp";
	case EMarketMode::RESOURCE_ARTIFACT:
		return "TPMRKABS.bmp";
	case EMarketMode::ARTIFACT_RESOURCE:
		return "TPMRKASS.bmp";
	}
	assert(0);
	return "";
}

CMarketplaceWindow::CMarketplaceWindow(const IMarket *Market, const CGHeroInstance *Hero, EMarketMode::EMarketMode Mode)
	: CTradeWindow(getBackgroundForMode(Mode), Market, Hero, Mode)
{
	OBJ_CONSTRUCTION_CAPTURING_ALL;

	madeTransaction = false;
	bool sliderNeeded = true;

	new CGStatusBar(new CPicture(*background, Rect(8, pos.h - 26, pos.w - 16, 19), 8, pos.h - 26));

	std::string title;

	if (market->o->ID == Obj::TOWN)
	{
		switch (mode)
		{
		break; case EMarketMode::CREATURE_RESOURCE:
			title = CGI->townh->factions[ETownType::STRONGHOLD]->town->buildings[BuildingID::FREELANCERS_GUILD]->Name();

		break; case EMarketMode::RESOURCE_ARTIFACT:
			title = CGI->townh->factions[market->o->subID]->town->buildings[BuildingID::ARTIFACT_MERCHANT]->Name();
			sliderNeeded = false;

		break; case EMarketMode::ARTIFACT_RESOURCE:
			title = CGI->townh->factions[market->o->subID]->town->buildings[BuildingID::ARTIFACT_MERCHANT]->Name();
			sliderNeeded = false;

		break; default:
			title = CGI->generaltexth->allTexts[158];
		}
	}
	else
	{
		switch(market->o->ID)
		{
		case Obj::BLACK_MARKET:
			title = CGI->generaltexth->allTexts[349];
			sliderNeeded = false;
			break;
		case Obj::TRADING_POST:
			title = CGI->generaltexth->allTexts[159];
			break;
		case Obj::TRADING_POST_SNOW:
			title = CGI->generaltexth->allTexts[159];
			break;
		default:
			title = market->o->getObjectName();
		}
	}

	new CLabel(300, 27, FONT_BIG, CENTER, Colors::YELLOW, title);

	initItems(false);
	initItems(true);

	ok = new CButton(Point(516, 520), "IOK6432.DEF", CGI->generaltexth->zelp[600], [&](){ close(); }, SDLK_RETURN);
	ok->assignedKeys.insert(SDLK_ESCAPE);
	deal = new CButton(Point(307, 520), "TPMRKB.DEF", CGI->generaltexth->zelp[595], [&](){ makeDeal(); } );
	deal->block(true);

	if(sliderNeeded)
	{
		slider = new CSlider(Point(231, 490),137, std::bind(&CMarketplaceWindow::sliderMoved,this,_1),0,0);
		max = new CButton(Point(229, 520), "IRCBTNS.DEF", CGI->generaltexth->zelp[596], [&](){ setMax(); });
		max->block(true);
	}
	else
	{
		slider = nullptr;
		max = nullptr;
		deal->moveBy(Point(-30, 0));
	}

	Rect traderTextRect;

	//left side
	switch(Mode)
	{
	case EMarketMode::RESOURCE_RESOURCE:
	case EMarketMode::RESOURCE_PLAYER:
	case EMarketMode::RESOURCE_ARTIFACT:
		new CLabel(154, 148, FONT_SMALL, CENTER, Colors::WHITE, CGI->generaltexth->allTexts[270]);
		break;

	case EMarketMode::CREATURE_RESOURCE:
		//%s's Creatures
		new CLabel(152, 102, FONT_SMALL, CENTER, Colors::WHITE,
		           boost::str(boost::format(CGI->generaltexth->allTexts[272]) % hero->name));
		break;
	case EMarketMode::ARTIFACT_RESOURCE:
		//%s's Artifacts
		new CLabel(152, 56, FONT_SMALL, CENTER, Colors::WHITE,
		           boost::str(boost::format(CGI->generaltexth->allTexts[271]) % hero->name));
		break;
	}

	//right side
	switch(Mode)
	{
	case EMarketMode::RESOURCE_RESOURCE:
	case EMarketMode::CREATURE_RESOURCE:
	case EMarketMode::RESOURCE_ARTIFACT:
	case EMarketMode::ARTIFACT_RESOURCE:
		new CLabel(445, 148, FONT_SMALL, CENTER, Colors::WHITE, CGI->generaltexth->allTexts[168]);
		traderTextRect = Rect(316, 48, 260, 75);
		break;
	case EMarketMode::RESOURCE_PLAYER:
		new CLabel(445, 55, FONT_SMALL, CENTER, Colors::WHITE, CGI->generaltexth->allTexts[169]);
		traderTextRect = Rect(28, 48, 260, 75);
		break;
	}

	traderText = new CTextBox("", traderTextRect, 0, FONT_SMALL, CENTER);
	int specialOffset = mode == EMarketMode::ARTIFACT_RESOURCE ? 35 : 0; //in selling artifacts mode we need to move res-res and art-res buttons down

	if(printButtonFor(EMarketMode::RESOURCE_PLAYER))
		new CButton(Point(18, 520),"TPMRKBU1.DEF", CGI->generaltexth->zelp[612], [&](){ setMode(EMarketMode::RESOURCE_PLAYER);});
	if(printButtonFor(EMarketMode::RESOURCE_RESOURCE))
		new CButton(Point(516, 450 + specialOffset),"TPMRKBU5.DEF", CGI->generaltexth->zelp[605], [&](){ setMode(EMarketMode::RESOURCE_RESOURCE);});
	if(printButtonFor(EMarketMode::CREATURE_RESOURCE))
		new CButton(Point(516, 485),"TPMRKBU4.DEF", CGI->generaltexth->zelp[599], [&](){ setMode(EMarketMode::CREATURE_RESOURCE);});
	if(printButtonFor(EMarketMode::RESOURCE_ARTIFACT))
		new CButton(Point(18, 450 + specialOffset),"TPMRKBU2.DEF", CGI->generaltexth->zelp[598], [&](){ setMode(EMarketMode::RESOURCE_ARTIFACT);});
	if(printButtonFor(EMarketMode::ARTIFACT_RESOURCE))
		new CButton(Point(18, 485),"TPMRKBU3.DEF", CGI->generaltexth->zelp[613], [&](){ setMode(EMarketMode::ARTIFACT_RESOURCE);});

	updateTraderText();
}

CMarketplaceWindow::~CMarketplaceWindow()
{
	hLeft = hRight = nullptr;
	for(auto & elem : items[1])
		delete elem;
	for(auto & elem : items[0])
		delete elem;

	items[1].clear();
	items[0].clear();
}



void CMarketplaceWindow::setMax()
{
	slider->moveToMax();
}

void CMarketplaceWindow::makeDeal()
{
	int sliderValue = 0;
	if(slider)
		sliderValue = slider->getValue();
	else
		sliderValue = !deal->isBlocked(); //should always be 1

	if(!sliderValue)
		return;

	int leftIdToSend = -1;
	switch (mode)
	{
		case EMarketMode::CREATURE_RESOURCE:
			leftIdToSend = hLeft->serial;
			break;
		case EMarketMode::ARTIFACT_RESOURCE:
			leftIdToSend = hLeft->getArtInstance()->id.getNum();
			break;
		default:
			leftIdToSend = hLeft->id;
			break;
	}

	if(slider)
	{
		LOCPLINT->cb->trade(market->o, mode, leftIdToSend, hRight->id, slider->getValue()*r1, hero);
		slider->moveTo(0);
	}
	else
	{
		LOCPLINT->cb->trade(market->o, mode, leftIdToSend, hRight->id, r2, hero);
	}
	madeTransaction = true;

	hLeft = nullptr;
	hRight = nullptr;
	selectionChanged(true);
}

void CMarketplaceWindow::sliderMoved( int to )
{
	redraw();
}

void CMarketplaceWindow::selectionChanged(bool side)
{
	readyToTrade = hLeft && hRight;
	if(mode == EMarketMode::RESOURCE_RESOURCE)
		readyToTrade = readyToTrade && (hLeft->id != hRight->id); //for resource trade, two DIFFERENT resources must be selected

 	if(mode == EMarketMode::ARTIFACT_RESOURCE && !hLeft)
		arts->unmarkSlots(false);

	if(readyToTrade)
	{
		int soldItemId = hLeft->id;
		market->getOffer(soldItemId, hRight->id, r1, r2, mode);

		if(slider)
		{
			int newAmount = -1;
			if(itemsType[1] == RESOURCE)
				newAmount = LOCPLINT->cb->getResourceAmount(static_cast<Res::ERes>(soldItemId));
			else if(itemsType[1] ==  CREATURE)
				newAmount = hero->getStackCount(SlotID(hLeft->serial)) - (hero->stacksCount() == 1  &&  hero->needsLastStack());
			else
				assert(0);

			slider->setAmount(newAmount / r1);
			slider->moveTo(0);
			max->block(false);
			deal->block(false);
		}
		else if(itemsType[1] == RESOURCE) //buying -> check if we can afford transaction
		{
			deal->block(LOCPLINT->cb->getResourceAmount(static_cast<Res::ERes>(soldItemId)) < r1);
		}
		else
			deal->block(false);
	}
	else
	{
		if(slider)
		{
			max->block(true);
			slider->setAmount(0);
			slider->moveTo(0);
		}
		deal->block(true);
	}

	if(side && itemsType[0] != PLAYER) //items[1] selection changed, recalculate offers
		initSubs(false);

	updateTraderText();
	redraw();
}

bool CMarketplaceWindow::printButtonFor(EMarketMode::EMarketMode M) const
{
	return market->allowsTrade(M) && M != mode && (hero || ( M != EMarketMode::CREATURE_RESOURCE && M != EMarketMode::RESOURCE_ARTIFACT && M != EMarketMode::ARTIFACT_RESOURCE ));
}

void CMarketplaceWindow::garrisonChanged()
{
	if(mode != EMarketMode::CREATURE_RESOURCE)
		return;

	std::set<CTradeableItem *> toRemove;
	getEmptySlots(toRemove);


	removeItems(toRemove);
	initSubs(true);
}

void CMarketplaceWindow::artifactsChanged(bool Left)
{
	assert(!Left);
	if(mode != EMarketMode::RESOURCE_ARTIFACT)
		return;

	std::vector<int> available = market->availableItemsIds(mode);
	std::set<CTradeableItem *> toRemove;
	for(CTradeableItem *t : items[0])
		if(!vstd::contains(available, t->id))
			toRemove.insert(t);

	removeItems(toRemove);
	redraw();
}

std::string CMarketplaceWindow::selectionSubtitle(bool Left) const
{
	if(Left)
	{
		switch(itemsType[1])
		{
		case RESOURCE:
		case CREATURE:
			{
				int val = slider
					? slider->getValue() * r1
					: (((deal->isBlocked())) ? 0 : r1);

				return boost::lexical_cast<std::string>(val);
			}
		case ARTIFACT_INSTANCE:
			return ((deal->isBlocked()) ? "0" : "1");
		}
	}
	else
	{
		switch(itemsType[0])
		{
		case RESOURCE:
			if(slider)
				return boost::lexical_cast<std::string>( slider->getValue() * r2 );
			else
				return boost::lexical_cast<std::string>(r2);
		case ARTIFACT_TYPE:
			return ((deal->isBlocked()) ? "0" : "1");
		case PLAYER:
			return (hRight ? CGI->generaltexth->capColors[hRight->id] : "");
		}
	}

	return "???";
}

Point CMarketplaceWindow::selectionOffset(bool Left) const
{
	if(Left)
	{
		switch(itemsType[1])
		{
		case RESOURCE:
			return Point(122, 446);
		case CREATURE:
			return Point(128, 450);
		case ARTIFACT_INSTANCE:
			return Point(134, 466);
		}
	}
	else
	{
		switch(itemsType[0])
		{
		case RESOURCE:
			if(mode == EMarketMode::ARTIFACT_RESOURCE)
				return Point(410, 469);
			else
				return Point(410, 446);
		case ARTIFACT_TYPE:
			return Point(425, 447);
		case PLAYER:
			return Point(417, 451);
		}
	}

	assert(0);
	return Point(0,0);
}

void CMarketplaceWindow::resourceChanged()
{
	initSubs(true);
}

void CMarketplaceWindow::getBaseForPositions(EType type, int &dx, int &dy, int &x, int &y, int &h, int &w, bool Right, int &leftToRightOffset) const
{
	switch(type)
	{
	case RESOURCE:
		dx = 82;
		dy = 79;
		x = 39;
		y = 180;
		h = 68;
		w = 70;
		break;
	case PLAYER:
		dx = 83;
		dy = 118;
		h = 64;
		w = 58;
		x = 44;
		y = 83;
		assert(Right);
		break;
	case CREATURE://45,123
		x = 45;
		y = 123;
		w = 58;
		h = 64;
		dx = 83;
		dy = 98;
		assert(!Right);
		break;
	case ARTIFACT_TYPE://45,123
		x = 340-289;
		y = 180;
		w = 44;
		h = 44;
		dx = 83;
		dy = 79;
		break;
	}

	leftToRightOffset = 289;
}

void CMarketplaceWindow::updateTraderText()
{
	if(readyToTrade)
	{
		if(mode == EMarketMode::RESOURCE_PLAYER)
		{
			//I can give %s to the %s player.
			traderText->setText(boost::str(boost::format(CGI->generaltexth->allTexts[165]) % hLeft->getName() % hRight->getName()));
		}
		else if(mode == EMarketMode::RESOURCE_ARTIFACT)
		{
			//I can offer you the %s for %d %s of %s.
			traderText->setText(boost::str(boost::format(CGI->generaltexth->allTexts[267]) % hRight->getName() % r1 % CGI->generaltexth->allTexts[160 + (r1==1)] % hLeft->getName()));
		}
		else if(mode == EMarketMode::RESOURCE_RESOURCE)
		{
			//I can offer you %d %s of %s for %d %s of %s.
			traderText->setText(boost::str(boost::format(CGI->generaltexth->allTexts[157]) % r2 % CGI->generaltexth->allTexts[160 + (r2==1)] % hRight->getName() % r1 % CGI->generaltexth->allTexts[160 + (r1==1)] % hLeft->getName()));
		}
		else if(mode == EMarketMode::CREATURE_RESOURCE)
		{
			//I can offer you %d %s of %s for %d %s.
			traderText->setText(boost::str(boost::format(CGI->generaltexth->allTexts[269]) % r2 % CGI->generaltexth->allTexts[160 + (r2==1)] % hRight->getName() % r1 % hLeft->getName(r1)));
		}
		else if(mode == EMarketMode::ARTIFACT_RESOURCE)
		{
			//I can offer you %d %s of %s for your %s.
			traderText->setText(boost::str(boost::format(CGI->generaltexth->allTexts[268]) % r2 % CGI->generaltexth->allTexts[160 + (r2==1)] % hRight->getName() % hLeft->getName(r1)));
		}
		return;
	}

	int gnrtxtnr = -1;
	if(madeTransaction)
	{
		if(mode == EMarketMode::RESOURCE_PLAYER)
			gnrtxtnr = 166; //Are there any other resources you'd like to give away?
		else
			gnrtxtnr = 162; //You have received quite a bargain.  I expect to make no profit on the deal.  Can I interest you in any of my other wares?
	}
	else
	{
		if(mode == EMarketMode::RESOURCE_PLAYER)
			gnrtxtnr = 167; //If you'd like to give any of your resources to another player, click on the item you wish to give and to whom.
		else
			gnrtxtnr = 163; //Please inspect our fine wares.  If you feel like offering a trade, click on the items you wish to trade with and for.
	}
	traderText->setText(CGI->generaltexth->allTexts[gnrtxtnr]);
}

CAltarWindow::CAltarWindow(const IMarket * Market, const CGHeroInstance * Hero, EMarketMode::EMarketMode Mode)
	:CTradeWindow((Mode == EMarketMode::CREATURE_EXP ? "ALTARMON.bmp" : "ALTRART2.bmp"), Market, Hero, Mode)
{
	OBJ_CONSTRUCTION_CAPTURING_ALL;
	if(Mode == EMarketMode::CREATURE_EXP)
	{
		//%s's Creatures
		new CLabel(155, 30, FONT_SMALL, CENTER, Colors::YELLOW,
		           boost::str(boost::format(CGI->generaltexth->allTexts[272]) % hero->name));

		//Altar of Sacrifice
		new CLabel(450, 30, FONT_SMALL, CENTER, Colors::YELLOW, CGI->generaltexth->allTexts[479]);

		 //To sacrifice creatures, move them from your army on to the Altar and click Sacrifice
		new CTextBox(CGI->generaltexth->allTexts[480], Rect(320, 56, 256, 40), 0, FONT_SMALL, CENTER, Colors::YELLOW);

		slider = new CSlider(Point(231,481),137,std::bind(&CAltarWindow::sliderMoved,this,_1),0,0);
		max = new CButton(Point(147, 520), "IRCBTNS.DEF", CGI->generaltexth->zelp[578], std::bind(&CSlider::moveToMax, slider));

		sacrificedUnits.resize(GameConstants::ARMY_SIZE, 0);
		sacrificeAll = new CButton(Point(393, 520), "ALTARMY.DEF", CGI->generaltexth->zelp[579], std::bind(&CAltarWindow::SacrificeAll,this));
		sacrificeBackpack = nullptr;

		initItems(true);
		mimicCres();
		artIcon = nullptr;
	}
	else
	{
		//Sacrifice artifacts for experience
		new CLabel(450, 34, FONT_SMALL, CENTER, Colors::YELLOW, CGI->generaltexth->allTexts[477]);
		//%s's Creatures
		new CLabel(302, 423, FONT_SMALL, CENTER, Colors::YELLOW, CGI->generaltexth->allTexts[478]);

		sacrificeAll = new CButton(Point(393, 520), "ALTFILL.DEF", CGI->generaltexth->zelp[571], std::bind(&CAltarWindow::SacrificeAll,this));
		sacrificeAll->block(hero->artifactsInBackpack.empty() && hero->artifactsWorn.empty());
		sacrificeBackpack = new CButton(Point(147, 520), "ALTEMBK.DEF", CGI->generaltexth->zelp[570], std::bind(&CAltarWindow::SacrificeBackpack,this));
		sacrificeBackpack->block(hero->artifactsInBackpack.empty());

		slider = nullptr;
		max = nullptr;

		initItems(true);
		initItems(false);
		artIcon = new CAnimImage("ARTIFACT", 0, 0, 281, 442);
		artIcon->disable();
	}

	//Experience needed to reach next level
	new CTextBox(CGI->generaltexth->allTexts[475], Rect(15, 415, 125, 50), 0, FONT_SMALL, CENTER, Colors::YELLOW);
	//Total experience on the Altar
	new CTextBox(CGI->generaltexth->allTexts[476], Rect(15, 495, 125, 40), 0, FONT_SMALL, CENTER, Colors::YELLOW);

	new CGStatusBar(new CPicture(*background, Rect(8, pos.h - 26, pos.w - 16, 19), 8, pos.h - 26));

	ok = new CButton(Point(516, 520), "IOK6432.DEF", CGI->generaltexth->zelp[568], [&](){ close();}, SDLK_RETURN);
	ok->assignedKeys.insert(SDLK_ESCAPE);

	deal = new CButton(Point(269, 520), "ALTSACR.DEF", CGI->generaltexth->zelp[585], std::bind(&CAltarWindow::makeDeal,this));

	if(Mode == EMarketMode::CREATURE_EXP)
	{
		CButton *changeMode = new CButton(Point(516, 421), "ALTART.DEF", CGI->generaltexth->zelp[580], std::bind(&CTradeWindow::setMode,this, EMarketMode::ARTIFACT_EXP));
		if (Hero->getAlignment() == ::EAlignment::EVIL)
			changeMode->block(true);
	}
	if(Mode == EMarketMode::ARTIFACT_EXP)
	{
		CButton *changeMode = new CButton(Point(516, 421), "ALTSACC.DEF", CGI->generaltexth->zelp[572], std::bind(&CTradeWindow::setMode,this, EMarketMode::CREATURE_EXP));
		if (Hero->getAlignment() == ::EAlignment::GOOD)
			changeMode->block(true);
	}

	expPerUnit.resize(GameConstants::ARMY_SIZE, 0);
	getExpValues();

	expToLevel = new CLabel(73, 475, FONT_SMALL, CENTER);
	expOnAltar = new CLabel(73, 543, FONT_SMALL, CENTER);

	setExpToLevel();
	calcTotalExp();
	blockTrade();
}

CAltarWindow::~CAltarWindow()
{

}

void CAltarWindow::getBaseForPositions(EType type, int &dx, int &dy, int &x, int &y, int &h, int &w, bool Right, int &leftToRightOffset) const
{
	leftToRightOffset = 289;
	x = 45;
	y = 110;
	w = 58;
	h = 64;
	dx = 83;
	dy = 98;
}

void CAltarWindow::sliderMoved(int to)
{
	if(hLeft)
		sacrificedUnits[hLeft->serial] = to;
	if(hRight)
		updateRight(hRight);

	deal->block(!to);
	calcTotalExp();
	redraw();
}

void CAltarWindow::makeDeal()
{
	if(mode == EMarketMode::CREATURE_EXP)
	{
		blockTrade();
		slider->moveTo(0);

		std::vector<int> toSacrifice = sacrificedUnits;
		for (int i = 0; i < toSacrifice.size(); i++)
		{
			if(toSacrifice[i])
				LOCPLINT->cb->trade(market->o, mode, i, 0, toSacrifice[i], hero);
		}

		for(int& val : sacrificedUnits)
			val = 0;

		for(CTradeableItem *t : items[0])
		{
			t->setType(CREATURE_PLACEHOLDER);
			t->subtitle = "";
		}
	}
	else
	{
		for(const CArtifactInstance *art : arts->artifactsOnAltar) //sacrifice each artifact on the list
		{
			LOCPLINT->cb->trade(market->o, mode, hero->getArtPos(art), -1, 1, hero);
		}
		arts->artifactsOnAltar.clear();

		for(CTradeableItem *t : items[0])
		{
			t->setID(-1);
			t->subtitle = "";
		}

		arts->commonInfo->reset();
		//arts->scrollBackpack(0);
		deal->block(true);
	}

	calcTotalExp();
}

void CAltarWindow::SacrificeAll()
{
	if(mode == EMarketMode::CREATURE_EXP)
	{
		bool movedAnything = false;
		for(CTradeableItem *t : items[1])
			sacrificedUnits[t->serial] = hero->getStackCount(SlotID(t->serial));

		sacrificedUnits[items[1].front()->serial]--;

		for(CTradeableItem *t : items[0])
		{
			updateRight(t);
			if(t->type == CREATURE)
				movedAnything = true;
		}

		deal->block(!movedAnything);
		calcTotalExp();
	}
	else
	{
		for(auto i = hero->artifactsWorn.cbegin(); i != hero->artifactsWorn.cend(); i++)
		{
			if(!i->second.locked) //ignore locks from assembled artifacts
				moveFromSlotToAltar(i->first, nullptr, i->second.artifact);
		}

		SacrificeBackpack();
	}
	redraw();
}

void CAltarWindow::selectionChanged(bool side)
{
	if(mode != EMarketMode::CREATURE_EXP)
		return;

	int stackCount = 0;
	for (int i = 0; i < GameConstants::ARMY_SIZE; i++)
		if(hero->getStackCount(SlotID(i)) > sacrificedUnits[i])
			stackCount++;

	slider->setAmount(hero->getStackCount(SlotID(hLeft->serial)) - (stackCount == 1));
	slider->block(!slider->getAmount());
	slider->moveTo(sacrificedUnits[hLeft->serial]);
	max->block(!slider->getAmount());
	readyToTrade = true;
	redraw();
}

void CAltarWindow::mimicCres()
{
	std::vector<Rect> positions;
	getPositionsFor(positions, false, CREATURE);

	for(CTradeableItem *t : items[1])
	{
		auto  hlp = new CTradeableItem(positions[t->serial].topLeft(), CREATURE_PLACEHOLDER, t->id, false, t->serial);
		hlp->pos = positions[t->serial] + this->pos.topLeft();
		items[0].push_back(hlp);
	}
}

Point CAltarWindow::selectionOffset(bool Left) const
{
	if(Left)
		return Point(150, 421);
	else
		return Point(396, 421);
}

std::string CAltarWindow::selectionSubtitle(bool Left) const
{
	if(Left && slider && hLeft)
		return boost::lexical_cast<std::string>(slider->getValue());
	else if(!Left && hRight)
		return hRight->subtitle;
	else
		return "";
}

void CAltarWindow::artifactsChanged(bool left)
{

}

void CAltarWindow::garrisonChanged()
{
	if(mode != EMarketMode::CREATURE_EXP)
		return;

	std::set<CTradeableItem *> empty;
	getEmptySlots(empty);

	removeItems(empty);

	initSubs(true);
	getExpValues();
}

void CAltarWindow::getExpValues()
{
	int dump;
	for(CTradeableItem *t : items[1])
		if(t->id >= 0)
			market->getOffer(t->id, 0, dump, expPerUnit[t->serial], EMarketMode::CREATURE_EXP);
}

void CAltarWindow::calcTotalExp()
{
	int val = 0;
	if(mode == EMarketMode::CREATURE_EXP)
	{
		for (int i = 0; i < sacrificedUnits.size(); i++)
		{
			val += expPerUnit[i] * sacrificedUnits[i];
		}
	}
	else
	{
		for(const CArtifactInstance *art : arts->artifactsOnAltar)
		{
			int dmp, valOfArt;
			market->getOffer(art->artType->id, 0, dmp, valOfArt, mode);
			val += valOfArt; //WAS val += valOfArt * arts->artifactsOnAltar.count(*i);
		}
	}
	val = hero->calculateXp(val);
	expOnAltar->setText(boost::lexical_cast<std::string>(val));
}

void CAltarWindow::setExpToLevel()
{
	expToLevel->setText(boost::lexical_cast<std::string>(CGI->heroh->reqExp(CGI->heroh->level(hero->exp)+1) - hero->exp));
}

void CAltarWindow::blockTrade()
{
	hLeft = hRight = nullptr;
	readyToTrade = false;
	if(slider)
	{
		slider->block(true);
		max->block(true);
	}
	deal->block(true);
}

void CAltarWindow::updateRight(CTradeableItem *toUpdate)
{
	int val = sacrificedUnits[toUpdate->serial];
	toUpdate->setType(val ? CREATURE : CREATURE_PLACEHOLDER);
	toUpdate->subtitle = val ? boost::str(boost::format(CGI->generaltexth->allTexts[122]) % boost::lexical_cast<std::string>(val * expPerUnit[toUpdate->serial])) : ""; //%s exp
}

int CAltarWindow::firstFreeSlot()
{
	int ret = -1;
	while(items[0][++ret]->id >= 0  &&  ret + 1 < items[0].size());
	return items[0][ret]->id == -1 ? ret : -1;
}

void CAltarWindow::SacrificeBackpack()
{
	std::multiset<const CArtifactInstance *> toOmmit = arts->artifactsOnAltar;

	for (auto & elem : hero->artifactsInBackpack)
	{

		if(vstd::contains(toOmmit, elem.artifact))
		{
			toOmmit -= elem.artifact;
			continue;
		}

		putOnAltar(nullptr, elem.artifact);
	}

	arts->scrollBackpack(0);
	calcTotalExp();
}

void CAltarWindow::artifactPicked()
{
	redraw();
}

void CAltarWindow::showAll(SDL_Surface * to)
{
	CTradeWindow::showAll(to);
	if(mode == EMarketMode::ARTIFACT_EXP && arts && arts->commonInfo->src.art)
	{
		artIcon->setFrame(arts->commonInfo->src.art->artType->iconIndex);
		artIcon->showAll(to);

		int dmp, val;
		market->getOffer(arts->commonInfo->src.art->artType->id, 0, dmp, val, EMarketMode::ARTIFACT_EXP);
		printAtMiddleLoc(boost::lexical_cast<std::string>(val), 304, 498, FONT_SMALL, Colors::WHITE, to);
	}
}

bool CAltarWindow::putOnAltar(CTradeableItem* altarSlot, const CArtifactInstance *art)
{
	if(!art->artType->isTradable()) //special art
	{
		logGlobal->warnStream() << "Cannot put special artifact on altar!";
		return false;
	}

	if(!altarSlot || altarSlot->id != -1)
	{
		int slotIndex = firstFreeSlot();
		if(slotIndex < 0)
		{
			logGlobal->warnStream() << "No free slots on altar!";
			return false;
		}
		altarSlot = items[0][slotIndex];
	}

	int dmp, val;
	market->getOffer(art->artType->id, 0, dmp, val, EMarketMode::ARTIFACT_EXP);

	arts->artifactsOnAltar.insert(art);
	altarSlot->setArtInstance(art);
	altarSlot->subtitle = boost::lexical_cast<std::string>(val);

	deal->block(false);
	return true;
}

void CAltarWindow::moveFromSlotToAltar(ArtifactPosition slotID, CTradeableItem* altarSlot, const CArtifactInstance *art)
{
	auto freeBackpackSlot = ArtifactPosition(hero->artifactsInBackpack.size() + GameConstants::BACKPACK_START);
	if(arts->commonInfo->src.art)
	{
		arts->commonInfo->dst.slotID = freeBackpackSlot;
		arts->commonInfo->dst.AOH = arts;
	}

	if(putOnAltar(altarSlot, art))
	{
		if(slotID < GameConstants::BACKPACK_START)
			LOCPLINT->cb->swapArtifacts(ArtifactLocation(hero, slotID), ArtifactLocation(hero, freeBackpackSlot));
		else
		{
			arts->commonInfo->src.clear();
			arts->commonInfo->dst.clear();
			CCS->curh->dragAndDropCursor(nullptr);
			arts->unmarkSlots(false);
		}
	}
}