/*
 * CMarketResources.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 "CMarketResources.h"

#include "../../gui/CGuiHandler.h"
#include "../../widgets/Buttons.h"
#include "../../widgets/TextControls.h"

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

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

#include "../../../lib/CGeneralTextHandler.h"
#include "../../../lib/mapObjects/CGMarket.h"

CMarketResources::CMarketResources(const IMarket * market, const CGHeroInstance * hero)
	: CMarketBase(market, hero, [this](){return CMarketResources::getSelectionParams();})
	, CResourcesSelling([this](const std::shared_ptr<CTradeableItem> & heroSlot){CMarketResources::onSlotClickPressed(heroSlot, bidTradePanel);})
	, CResourcesBuying(
		[this](const std::shared_ptr<CTradeableItem> & resSlot){CMarketResources::onSlotClickPressed(resSlot, offerTradePanel);},
		[this](){CMarketResources::updateSubtitles();})
	, CMarketSlider([this](int newVal){CMarketSlider::onOfferSliderMoved(newVal);})
{
	OBJECT_CONSTRUCTION_CAPTURING(255 - DISPOSE);

	labels.emplace_back(std::make_shared<CLabel>(titlePos.x, titlePos.y, FONT_BIG, ETextAlignment::CENTER, Colors::YELLOW, CGI->generaltexth->allTexts[158]));
	deal = std::make_shared<CButton>(dealButtonPosWithSlider, AnimationPath::builtin("TPMRKB.DEF"),
		CGI->generaltexth->zelp[595], [this]() {CMarketResources::makeDeal(); });

	// Player's resources
	assert(bidTradePanel);
	bidTradePanel->moveTo(pos.topLeft() + Point(39, 182));

	// Market resources panel
	assert(offerTradePanel);

	CMarketBase::update();
	CMarketResources::deselect();
}

void CMarketResources::deselect()
{
	CMarketBase::deselect();
	CMarketSlider::deselect();
}

void CMarketResources::makeDeal()
{
	if(auto toTrade = offerSlider->getValue(); toTrade != 0)
	{
		LOCPLINT->cb->trade(market, EMarketMode::RESOURCE_RESOURCE, GameResID(bidTradePanel->getSelectedItemId()),
			GameResID(offerTradePanel->highlightedSlot->id), bidQty * toTrade, hero);
		deselect();
	}
}

CMarketBase::SelectionParams CMarketResources::getSelectionParams() const
{
	if(bidTradePanel->highlightedSlot && offerTradePanel->highlightedSlot && bidTradePanel->getSelectedItemId() != offerTradePanel->getSelectedItemId())
		return std::make_tuple(
			SelectionParamOneSide {std::to_string(bidQty * offerSlider->getValue()), bidTradePanel->getSelectedItemId()},
			SelectionParamOneSide {std::to_string(offerQty * offerSlider->getValue()), offerTradePanel->getSelectedItemId()});
	else
		return std::make_tuple(std::nullopt, std::nullopt);
}

void CMarketResources::highlightingChanged()
{
	if(bidTradePanel->highlightedSlot && offerTradePanel->highlightedSlot)
	{
		market->getOffer(bidTradePanel->getSelectedItemId(), offerTradePanel->highlightedSlot->id, bidQty, offerQty, EMarketMode::RESOURCE_RESOURCE);
		offerSlider->setAmount(LOCPLINT->cb->getResourceAmount(GameResID(bidTradePanel->getSelectedItemId())) / bidQty);
		offerSlider->scrollTo(0);
		const bool isControlsBlocked = bidTradePanel->getSelectedItemId() != offerTradePanel->getSelectedItemId() ? false : true;
		offerSlider->block(isControlsBlocked);
		maxAmount->block(isControlsBlocked);
		deal->block(isControlsBlocked);
	}
	CMarketBase::highlightingChanged();
}

void CMarketResources::updateSubtitles()
{
	CMarketBase::updateSubtitlesForBid(EMarketMode::RESOURCE_RESOURCE, bidTradePanel->getSelectedItemId());
	if(bidTradePanel->highlightedSlot)
		offerTradePanel->slots[bidTradePanel->highlightedSlot->serial]->subtitle->setText(CGI->generaltexth->allTexts[164]); // n/a
}