GameStore = {
	ModuleName = "GameStore",
	Developers = { "Cjaker", "metabob", "Rick" },
	Version = "1.1",
	LastUpdated = "25-07-2020 11:52AM"
}

--== Enums ==--
GameStore.OfferTypes = {
	OFFER_TYPE_NONE = 0,
	OFFER_TYPE_ITEM = 1,
	OFFER_TYPE_STACKABLE = 2,
	OFFER_TYPE_CHARGES = 3,
	OFFER_TYPE_OUTFIT = 4,
	OFFER_TYPE_OUTFIT_ADDON = 5,
	OFFER_TYPE_MOUNT = 6,
	OFFER_TYPE_NAMECHANGE = 7,
	OFFER_TYPE_SEXCHANGE = 8,
	OFFER_TYPE_HOUSE = 9,
	OFFER_TYPE_EXPBOOST = 10,
	OFFER_TYPE_PREYSLOT = 11,
	OFFER_TYPE_PREYBONUS = 12,
	OFFER_TYPE_TEMPLE = 13,
	OFFER_TYPE_BLESSINGS = 14,
	OFFER_TYPE_PREMIUM = 15,
	OFFER_TYPE_POUNCH = 16,
	OFFER_TYPE_ALLBLESSINGS = 17,
	OFFER_TYPE_INSTANT_REWARD_ACCESS = 18,
	OFFER_TYPE_CHARMS = 19,
	OFFER_TYPE_HIRELING = 20,
	OFFER_TYPE_HIRELING_NAMECHANGE = 21,
	OFFER_TYPE_HIRELING_SEXCHANGE = 22,
	OFFER_TYPE_HIRELING_SKILL = 23,
	OFFER_TYPE_HIRELING_OUTFIT = 24
}

GameStore.ActionType = {
	OPEN_HOME = 0,
	OPEN_PREMIUM_BOOST = 1,
	OPEN_CATEGORY = 2,
	OPEN_USEFUL_THINGS = 3,
	OPEN_OFFER = 4,
}

GameStore.CointType = {
	Coin = 0,
	Transferable = 1,
	Tournament = 2,
}

GameStore.Storages = {
	expBoostCount = 51052
}

GameStore.ConverType = {
	SHOW_NONE = 0,
	SHOW_MOUNT = 1,
	SHOW_OUTFIT = 2,
	SHOW_ITEM = 3,
	SHOW_HIRELING = 4
}

GameStore.ConfigureOffers = {
	SHOW_NORMAL = 0,
	SHOW_CONFIGURE = 1
}

function convertType(type)
	local types = {
		[GameStore.OfferTypes.OFFER_TYPE_OUTFIT] = GameStore.ConverType.SHOW_OUTFIT,
		[GameStore.OfferTypes.OFFER_TYPE_OUTFIT_ADDON] = GameStore.ConverType.SHOW_OUTFIT,
		[GameStore.OfferTypes.OFFER_TYPE_MOUNT] = GameStore.ConverType.SHOW_MOUNT,
		[GameStore.OfferTypes.OFFER_TYPE_ITEM] = GameStore.ConverType.SHOW_ITEM,
		[GameStore.OfferTypes.OFFER_TYPE_STACKABLE] = GameStore.ConverType.SHOW_ITEM,
		[GameStore.OfferTypes.OFFER_TYPE_HOUSE] = GameStore.ConverType.SHOW_ITEM,
		[GameStore.OfferTypes.OFFER_TYPE_CHARGES] = GameStore.ConverType.SHOW_ITEM,
		[GameStore.OfferTypes.OFFER_TYPE_HIRELING] = GameStore.ConverType.SHOW_HIRELING,
	}

	if not types[type] then
		return GameStore.ConverType.SHOW_NONE
	end

	return types[type]
end

function useOfferConfigure(type)
	local types = {
		[GameStore.OfferTypes.OFFER_TYPE_NAMECHANGE] = GameStore.ConfigureOffers.SHOW_CONFIGURE,
		[GameStore.OfferTypes.OFFER_TYPE_HIRELING] = GameStore.ConfigureOffers.SHOW_CONFIGURE,
		[GameStore.OfferTypes.OFFER_TYPE_HIRELING_NAMECHANGE] = GameStore.ConfigureOffers.SHOW_CONFIGURE,
		[GameStore.OfferTypes.OFFER_TYPE_HIRELING_SEXCHANGE] = GameStore.ConfigureOffers.SHOW_CONFIGURE
	}

	if not types[type] then
		return GameStore.ConfigureOffers.SHOW_NORMAL
	end

	return types[type]
end

GameStore.ClientOfferTypes = {
	CLIENT_STORE_OFFER_OTHER = 0,
	CLIENT_STORE_OFFER_NAMECHANGE = 1,
	CLIENT_STORE_OFFER_HIRELING = 3,
}

GameStore.HistoryTypes = {
	HISTORY_TYPE_NONE = 0,
	HISTORY_TYPE_GIFT = 1,
	HISTORY_TYPE_REFUND = 2
}

GameStore.States = {
	STATE_NONE = 0,
	STATE_NEW = 1,
	STATE_SALE = 2,
	STATE_TIMED = 3
}

GameStore.StoreErrors = {
	STORE_ERROR_PURCHASE = 0,
	STORE_ERROR_NETWORK = 1,
	STORE_ERROR_HISTORY = 2,
	STORE_ERROR_TRANSFER = 3,
	STORE_ERROR_INFORMATION = 4
}

GameStore.ServiceTypes = {
	SERVICE_STANDERD = 0,
	SERVICE_OUTFITS = 3,
	SERVICE_MOUNTS = 4,
	SERVICE_BLESSINGS = 5
}

GameStore.SendingPackets = {
	S_CoinBalance = 0xDF, -- 223
	S_StoreError = 0xE0, -- 224
	S_RequestPurchaseData = 0xE1, -- 225
	S_CoinBalanceUpdating = 0xF2, -- 242
	S_OpenStore = 0xFB, -- 251
	S_StoreOffers = 0xFC, -- 252
	S_OpenTransactionHistory = 0xFD, -- 253
	S_CompletePurchase = 0xFE  -- 254
}

GameStore.RecivedPackets = {
	C_StoreEvent = 0xE9, -- 233
	C_TransferCoins = 0xEF, -- 239
	C_ParseHirelingName = 0xEC, -- 236
	C_OpenStore = 0xFA, -- 250
	C_RequestStoreOffers = 0xFB, -- 251
	C_BuyStoreOffer = 0xFC, -- 252
	C_OpenTransactionHistory = 0xFD, -- 253
	C_RequestTransactionHistory = 0xFE, -- 254
}

GameStore.ExpBoostValues = {
	[1] = 30,
	[2] = 45,
	[3] = 90,
	[4] = 180,
	[5] = 360
}

GameStore.DefaultValues = {
	DEFAULT_VALUE_ENTRIES_PER_PAGE = 26
}

GameStore.DefaultDescriptions = {
	OUTFIT      = { "This outfit looks nice. Only high-class people are able to wear it!",
					"An outfit that was created to suit you. We are sure you'll like it.",
					"Legend says only smart people should wear it, otherwise you will burn!" },
	MOUNT       = { "This is a fantastic mount that helps to become faster, try it!",
					"The first rider of this mount became the leader of his country! legends say that." },
	NAMECHANGE  = { "Are you hunted? Tired of that? Get a new name, a new life!",
					"A new name to suit your needs!" },
 	SEXCHANGE   = { "Bored of your character's sex? Get a new sex for him now!!" },
 	EXPBOOST    = { "Are you tired of leveling slow? try it!" },
 	PREYSLOT    = { "It's hunting season! Activate a prey to gain a bonus when hunting a certain monster. Every character can purchase one Permanent Prey Slot, which enables the activation of an additional prey. \nIf you activate a prey, you can select one monster out of nine. The bonus for your prey will be selected randomly from one of the following: damage boost, damage reduction, bonus XP, improved loot. The bonus value may range from 5% to 50%. Your prey will be active for 2 hours hunting time: the duration of an active prey will only be reduced while you are hunting." },
 	PREYBONUS   = { "You activated a prey but do not like the randomly selected bonus? Roll for a new one! Here you can purchase five Prey Bonus Rerolls! \nA Bonus Reroll allows you to get a bonus with a higher value (max. 50%). The bonus for your prey will be selected randomly from one of the following: damage boost, damage reduction, bonus XP, improved loot. The 2 hours hunting time will start anew once you have rolled for a new bonus. Your prey monster will stay the same." },
 	TEMPLE      = { "Need a quick way home? Buy this transportation service to get instantly teleported to your home temple. \n\nNote, you cannot use this service while having a battle sign or a protection zone block. Further, the service will not work in no-logout zones or close to your home temple." }
}

--==Parsing==--
GameStore.isItsPacket = function(byte)
	for k, v in pairs(GameStore.RecivedPackets) do
		if v == byte then
		  return true
		end
	end
	return false
end

local function queueSendStoreAlertToUser(message, delay, playerId, storeErrorCode)
	storeErrorCode = storeErrorCode and storeErrorCode or  GameStore.StoreErrors.STORE_ERROR_NETWORK
	addPlayerEvent(sendStoreError, delay, playerId, storeErrorCode, message)
end

function onRecvbyte(player, msg, byte)
	if not configManager.getBoolean(STOREMODULES) then return true end
		if player:getVocation():getId() == 0 and not GameStore.haveCategoryRook() then
		return player:sendCancelMessage("Store don't have offers for rookgaard citizen.")
	end

	local exaust = player:getStorageValue(Storage.StoreExaust)
	local currentTime = os.time()

	if byte == GameStore.RecivedPackets.C_StoreEvent then
	elseif byte == GameStore.RecivedPackets.C_TransferCoins then
		parseTransferCoins(player:getId(), msg)
	elseif byte == GameStore.RecivedPackets.C_OpenStore then
		if exaust > currentTime then
			player:sendCancelMessage("You are exhausted")
			return false
		end
		local num = currentTime + 1
		player:setStorageValue(Storage.StoreExaust, num)

		parseOpenStore(player:getId(), msg)
	elseif byte == GameStore.RecivedPackets.C_RequestStoreOffers then
		parseRequestStoreOffers(player:getId(), msg)
	elseif byte == GameStore.RecivedPackets.C_BuyStoreOffer then
		parseBuyStoreOffer(player:getId(), msg)
	elseif byte == GameStore.RecivedPackets.C_OpenTransactionHistory then
		parseOpenTransactionHistory(player:getId(), msg)
	elseif byte == GameStore.RecivedPackets.C_RequestTransactionHistory then
		parseRequestTransactionHistory(player:getId(), msg)
	end
	return true
end

function parseTransferCoins(playerId, msg)
	local player = Player(playerId)
	if not player then
		return false
	end

	local reciver = msg:getString()
	local amount = msg:getU32()

	if (player:getCoinsBalance() < amount) then
		return addPlayerEvent(sendStoreError, 350, playerId, GameStore.StoreErrors.STORE_ERROR_TRANSFER, "You don't have this amount of coins.")
	end

	if reciver:lower() == player:getName():lower() then
		return addPlayerEvent(sendStoreError, 350, playerId, GameStore.StoreErrors.STORE_ERROR_TRANSFER, "You can't transfer coins to yourself.")
	end

	local resultId = db.storeQuery("SELECT `account_id` FROM `players` WHERE `name` = " .. db.escapeString(reciver:lower()) .. "")
	if not resultId then
		return addPlayerEvent(sendStoreError, 350, playerId, GameStore.StoreErrors.STORE_ERROR_TRANSFER, "We couldn't find that player.")
	end

	local accountId = result.getDataInt(resultId, "account_id")
	if accountId == player:getAccountId() then
		return addPlayerEvent(sendStoreError, 350, playerId, GameStore.StoreErrors.STORE_ERROR_TRANSFER, "You cannot transfer coin to a character in the same account.")
	end

	db.query("UPDATE `accounts` SET `coins` = `coins` + " .. amount .. " WHERE `id` = " .. accountId)
	player:removeCoinsBalance(amount)
	addPlayerEvent(sendStorePurchaseSuccessful, 550, playerId, "You have transfered " .. amount .. " coins to " .. reciver .. " successfully")

	-- Adding history for both reciver/sender
	GameStore.insertHistory(accountId, GameStore.HistoryTypes.HISTORY_TYPE_NONE, player:getName() .. " transfered you this amount.", amount, GameStore.CointType.Coin)
	GameStore.insertHistory(player:getAccountId(), GameStore.HistoryTypes.HISTORY_TYPE_NONE, "You transfered this amount to " .. reciver, -1 * amount, GameStore.CointType.Coin)
end

function parseOpenStore(playerId, msg)
	openStore(playerId)

	local category = GameStore.Categories and GameStore.Categories[1] or nil
	if category then
		addPlayerEvent(parseRequestStoreOffers, 50, playerId)
	end
end

function parseRequestStoreOffers(playerId, msg)
	local player = Player(playerId)
	if not player then
		return false
	end

	local actionType = msg:getByte()

	if actionType == GameStore.ActionType.OPEN_CATEGORY then
		local categoryName = msg:getString()
		local category = GameStore.getCategoryByName(categoryName)
		if category then
			addPlayerEvent(sendShowStoreOffers, 50, playerId, category)
		end
	elseif actionType == GameStore.ActionType.OPEN_HOME then
		sendHomePage(player:getId())
		if category then
			addPlayerEvent(sendShowStoreOffers, 50, playerId, "Home Offers")
		end
	elseif actionType == GameStore.ActionType.OPEN_PREMIUM_BOOST then
		local subAction = msg:getByte()
		local category = nil

		if subAction == 0 then
			category = GameStore.getCategoryByName("Premium Time")
		else
			category = GameStore.getCategoryByName("Boosts")
		end

		if category then
			addPlayerEvent(sendShowStoreOffers, 50, playerId, category)
		end
	elseif actionType == GameStore.ActionType.OPEN_USEFUL_THINGS then
		local subAction = msg:getByte()
		local redirectId = subAction
		local category = nil
		if subAction >= 4 then
			category = GameStore.getCategoryByName("Blessings")
		else
			category = GameStore.getCategoryByName("Useful Things")
		end

		-- Third prey slot offerId
		-- We can't use offerId 0
		if subAction == 0 then
			redirectId = 65008
		end

		if category then
			addPlayerEvent(sendShowStoreOffers, 50, playerId, category, redirectId)
		end

	elseif actionType == GameStore.ActionType.OPEN_OFFER then
		local offerId = msg:getU32()
		local category = GameStore.getCategoryByOffer(offerId)
		if category then
			addPlayerEvent(sendShowStoreOffers, 50, playerId, category, offerId)
		end
	end
end

function parseBuyStoreOffer(playerId, msg)
	local player = Player(playerId)
	local id = msg:getU32()
	local offer = GameStore.getOfferById(id)
	local productType = msg:getByte()

	-- All guarding conditions under which the offer should not be processed must be included here
	if (table.contains(GameStore.OfferTypes, offer.type) == false)                      -- we've got an invalid offer type
		or (not player)                                                                 -- player not found
		or (player:getVocation():getId() == 0) and (not GameStore.haveOfferRook(id))    -- we don't have such offer
		or (not offer)                                                                  -- we could not find the offer
		or (offer.type == GameStore.OfferTypes.OFFER_TYPE_NONE)                         -- offer is disabled
		or (offer.type ~= GameStore.OfferTypes.OFFER_TYPE_NAMECHANGE and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_EXPBOOST and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_PREYBONUS and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_PREYSLOT and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_TEMPLE and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_SEXCHANGE and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_INSTANT_REWARD_ACCESS and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_POUNCH and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_NAMECHANGE and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_SEXCHANGE and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_SKILL and
			offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_OUTFIT and
	not offer.id) then
		return queueSendStoreAlertToUser("This offer is unavailable [1]", 350, playerId, GameStore.StoreErrors.STORE_ERROR_INFORMATION)
	end

	-- At this point the purchase is assumed to be formatted correctly
	local offerPrice = offer.type == GameStore.OfferTypes.OFFER_TYPE_EXPBOOST and GameStore.ExpBoostValues[player:getStorageValue(GameStore.Storages.expBoostCount)] or offer.price
	local offerCoinType = offer.coinType
	-- Check if offer can be honored
	if not player:canPayForOffer(offerPrice, offerCoinType) then
		return queueSendStoreAlertToUser("You don't have enough coins. Your purchase has been cancelled.", 250, playerId)
	end

	-- Use pcall to catch unhandled errors and send an alert to the user because the client expects it at all times; (OTClient will unlock UI)
	-- Handled errors are thrown to indicate that the purchase has failed;
	-- Handled errors have a code index and unhandled errors do not
	local pcallOk, pcallError = pcall(function()
		if offer.type == GameStore.OfferTypes.OFFER_TYPE_ITEM               then GameStore.processItemPurchase(player, offer.itemtype, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_POUNCH         then GameStore.processItemPurchase(player, offer.itemtype, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_INSTANT_REWARD_ACCESS then GameStore.processInstantRewardAccess(player, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_CHARMS         then GameStore.processCharmsPurchase(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_BLESSINGS      then GameStore.processSignleBlessingPurchase(player, offer.blessid, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_ALLBLESSINGS   then GameStore.processAllBlessingsPurchase(player, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_PREMIUM        then GameStore.processPremiumPurchase(player, offer.id)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_STACKABLE      then GameStore.processStackablePurchase(player, offer.itemtype, offer.count, offer.name)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HOUSE          then GameStore.processHouseRelatedPurchase(player, offer.itemtype, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT         then GameStore.processOutfitPurchase(player, offer.sexId, offer.addon)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT_ADDON   then GameStore.processOutfitPurchase(player, offer.sexId, offer.addon)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_MOUNT          then GameStore.processMountPurchase(player, offer.id)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_NAMECHANGE     then local newName = msg:getString(); GameStore.processNameChangePurchase(player, offer, productType, newName)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_SEXCHANGE      then GameStore.processSexChangePurchase(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_EXPBOOST       then GameStore.processExpBoostPuchase(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_PREYSLOT       then GameStore.processPreyThirdSlot(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HUNTINGSLOT    then GameStore.processTaskHuntingThirdSlot(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_PREYBONUS      then GameStore.processPreyBonusReroll(player, offer.count)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_TEMPLE         then GameStore.processTempleTeleportPurchase(player)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_CHARGES        then GameStore.processChargesPurchase(player, offer.itemtype, offer.name, offer.charges)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING       then local hirelingName = msg:getString(); local sex = msg:getByte(); GameStore.processHirelingPurchase(player, offer, productType, hirelingName, sex)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_NAMECHANGE  then local hirelingName = msg:getString(); GameStore.processHirelingChangeNamePurchase(player, offer, productType, hirelingName)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_SEXCHANGE   then GameStore.processHirelingChangeSexPurchase(player, offer)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_SKILL       then GameStore.processHirelingSkillPurchase(player, offer)
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_OUTFIT      then GameStore.processHirelingOutfitPurchase(player, offer)
		else
			-- This should never happen by our convention, but just in case the guarding condition is messed up...
			error({code = 0, message = "This offer is unavailable [2]"})
		end
	end)

	if not pcallOk then
		local alertMessage = pcallError.code and pcallError.message or "Something went wrong. Your purchase has been cancelled."

	if not pcallError.code then -- unhandled error
		-- log some debugging info
		Spdlog.warn("[parseBuyStoreOffer] - Purchase failed due to an unhandled script error. Stacktrace: ".. pcallError)
	end

		return queueSendStoreAlertToUser(alertMessage, 500, playerId)
	end

	local configure = useOfferConfigure(offer.type)
	if configure ~= GameStore.ConfigureOffers.SHOW_CONFIGURE then

		player:makeCoinTransaction(offer)

		local message = string.format("You have purchased %s for %d coins.", offer.name, offerPrice)
		sendUpdatedStoreBalances(playerId)
		return addPlayerEvent(sendStorePurchaseSuccessful, 650, playerId, message)
	end
	return true
end

-- Both functions use same formula!
function parseOpenTransactionHistory(playerId, msg)
	local page = 1
	GameStore.DefaultValues.DEFAULT_VALUE_ENTRIES_PER_PAGE = msg:getByte()
	sendStoreTransactionHistory(playerId, page, GameStore.DefaultValues.DEFAULT_VALUE_ENTRIES_PER_PAGE)
end

function parseRequestTransactionHistory(playerId, msg)
	local page = msg:getU32()
	sendStoreTransactionHistory(playerId, page + 1, GameStore.DefaultValues.DEFAULT_VALUE_ENTRIES_PER_PAGE)
end

local function getCategoriesRook()
	local tmpTable, count = {}, 0
	for i, v in pairs(GameStore.Categories) do
		if (v.rookgaard) then
			tmpTable[#tmpTable + 1] = v
			count = count + 1
		end
	end

	return tmpTable, count
end

--==Sending==--
function openStore(playerId)
	local player = Player(playerId)
	if not player then
		return false
	end

	if not GameStore.Categories then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_OpenStore)

	local GameStoreCategories, GameStoreCount = nil, 0
	if (player:getVocation():getId() == 0) then
		GameStoreCategories, GameStoreCount = getCategoriesRook()
	else
		GameStoreCategories, GameStoreCount = GameStore.Categories, #GameStore.Categories
	end

	if (GameStoreCategories) then
		msg:addU16(GameStoreCount)
		for k, category in ipairs(GameStoreCategories) do
			msg:addString(category.name)
			msg:addByte(category.state or GameStore.States.STATE_NONE)
			msg:addByte(#category.icons)
			for m, icon in ipairs(category.icons) do
				msg:addString(icon)
			end

			if category.parent then
				msg:addString(category.parent)
			else
				msg:addU16(0)
			end
		end

		msg:sendToPlayer(player)
		sendStoreBalanceUpdating(playerId, true)
	end
end

function sendOfferDescription(player, offerId, description)
	local msg = NetworkMessage()
	msg:addByte(0xEA)
	msg:addU32(offerId)
	msg:addString(description)
	msg:sendToPlayer(player)
end

function Player.canBuyOffer(self, offer)
	local playerId = self:getId()
	local disabled, disabledReason = 0, ""
	if offer.disabled == true or not offer.type then
		disabled = 1
	end

	if offer.type ~= GameStore.OfferTypes.OFFER_TYPE_NAMECHANGE and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_EXPBOOST and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_PREYSLOT and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_PREYBONUS and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_TEMPLE and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_SEXCHANGE and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_POUNCH and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_SKILL and
	offer.type ~= GameStore.OfferTypes.OFFER_TYPE_HIRELING_OUTFIT and
	not offer.id then
		disabled = 1
	end

	if disabled == 1 and offer.disabledReason then
		-- dynamic disable
		disabledReason = offer.disabledReason
	end

	if disabled ~= 1 then
		if offer.type == GameStore.OfferTypes.OFFER_TYPE_POUNCH then
			local pounch = self:getItemById(23721, true)
			if pounch then
				disabled = 1
				disabledReason = "You already have Loot Pouch."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_BLESSINGS then
			if self:getBlessingCount(offer.blessid) >= 5 then
				disabled = 1
				disabledReason = "You reached the maximum amount for this blessing."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_ALLBLESSINGS then
			for i = 1, 8 do
				if self:getBlessingCount(i) >= 5 then
					disabled = 1
					disabledReason = "You already have all Blessings."
					break
				end
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT or offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT_ADDON then
			local outfitLookType
			if self:getSex() == PLAYERSEX_MALE then
				outfitLookType = offer.sexId.male
			else
				outfitLookType = offer.sexId.female
			end

			if outfitLookType then
				if offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT and self:hasOutfit(outfitLookType) then
					disabled = 1
					disabledReason = "You already have this outfit."
				elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT_ADDON then
					if self:hasOutfit(outfitLookType) then
						if self:hasOutfit(outfitLookType, offer.addon) then
							disabled = 1
							disabledReason = "You already have this addon."
						end
					else
						disabled = 1
						disabledReason = "You don't have the outfit, you can't buy the addon."
					end
				end
			else
				disabled = 1
				disabledReason = "The offer is fake."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_MOUNT then
			local hasMount = self:hasMount(offer.id)
			if hasMount == true then
				disabled = 1
				disabledReason = "You already have this mount."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_INSTANT_REWARD_ACCESS then
			if self:getCollectionTokens() >= 90 then
				disabled = 1
				disabledReason = "You already have maximum of reward tokens."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_PREYBONUS then
			if self:getPreyCards() >= 50 then
				disabled = 1
				disabledReason = "You already have maximum of prey wildcards."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_CHARMS then
			if self:charmExpansion() then
				disabled = 1
				disabledReason = "You already have charm expansion."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HUNTINGSLOT then
			if self:taskHuntingThirdSlot() then
				disabled = 1
				disabledReason = "You already have 3 slots released."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_PREYSLOT then
			if self:preyThirdSlot() then
				disabled = 1
				disabledReason = "You already have 3 slots released."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_EXPBOOST then
			local remainingBoost = self:getExpBoostStamina()
			if self:getStorageValue(GameStore.Storages.expBoostCount) == 6 then
				disabled = 1
				disabledReason = "You can't buy XP Boost for today."
			end
			if (remainingBoost > 0) then
				disabled = 1
				disabledReason = "You already have an active XP boost."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING then
			if self:getHirelingsCount() >= 10 then
				disabled = 1
				disabledReason = "You already have bought the maximum number of allowed hirelings."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_SKILL then
			local skill = (HIRELING_STORAGE.SKILL + offer.id)
			if self:hasHirelingSkill(skill) then
				disabled = 1
				disabledReason = "This skill is already unlocked."
			end
			if self:getHirelingsCount() <= 0 then
				disabled = 1
				disabledReason = "You need to have a hireling."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_OUTFIT then
			local outfit = offer.id - HIRELING_STORAGE.OUTFIT
			if self:hasHirelingOutfit(outfit) then
				disabled = 1
				disabledReason = "This hireling outfit is already unlocked."
			end
			if self:getHirelingsCount() <= 0 then
				disabled = 1
				disabledReason = "You need to have a hireling."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_NAMECHANGE then
			if self:getHirelingsCount() <= 0 then
				disabled = 1
				disabledReason = "You need to have a hireling."
			end
		elseif offer.type == GameStore.OfferTypes.OFFER_TYPE_HIRELING_SEXCHANGE then
			if self:getHirelingsCount() <= 0 then
				disabled = 1
				disabledReason = "You need to have a hireling."
			end
		end
	end

	return {disabled = disabled, disabledReason = disabledReason}
end

function sendShowStoreOffers(playerId, category, redirectId)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	local haveSaleOffer = 0
	msg:addByte(GameStore.SendingPackets.S_StoreOffers)
	msg:addString(category.name)

	msg:addU32(redirectId or 0)

	msg:addByte(0) -- Window Type
	msg:addByte(0) -- Collections Size
	msg:addU16(0) -- Collection Name

	if not category.offers then
		msg:addU16(0)
		msg:sendToPlayer(player)
		return
	end

	local offers = {}
	local count = 0
	for k, offer in ipairs(category.offers) do
		local name = offer.name or "Something Special"
		if not offers[name] then
			offers[name] = {}
			count = count + 1
			offers[name].offers = {}
			offers[name].state = offer.state
			offers[name].id = offer.id
			offers[name].type = offer.type
			offers[name].icons = offer.icons
			offers[name].basePrice = offer.basePrice
			offers[name].description = offer.description
			if offer.sexId then
				offers[name].sexId = offer.sexId
			end
			if offer.itemtype then
				offers[name].itemtype = offer.itemtype
			end
		end
		table.insert(offers[name].offers, offer)
	end

	-- If player doesn't have hireling
	if category.name == "Hirelings" then
		if player:getHirelingsCount() < 1 then
			offers["Hireling Name Change"] = nil
			offers["Hireling Sex Change"] = nil
			offers["Hireling Trader"] = nil
			offers["Hireling Steward"] = nil
			offers["Hireling Banker"] = nil
			offers["Hireling Cook"] = nil
			count = count - 6
		end
	end

	msg:addU16(count)

	if count > 0 then
		for name, offer in pairs(offers) do
			msg:addString(name)
			msg:addByte(#offer.offers)
			sendOfferDescription(player, offer.id and offer.id or 0xFFFF, offer.description)
			for _, off in ipairs(offer.offers) do
				xpBoostPrice = nil
				if offer.type == GameStore.OfferTypes.OFFER_TYPE_EXPBOOST then
					xpBoostPrice = GameStore.ExpBoostValues[player:getStorageValue(GameStore.Storages.expBoostCount)]
				end

				msg:addU32(off.id)
				msg:addU16(off.count)
				msg:addU32(xpBoostPrice or off.price)
				msg:addByte(off.coinType or 0x00)

				local disabled, disabledReason = player:canBuyOffer(off).disabled, player:canBuyOffer(off).disabledReason
				msg:addByte(disabled)
				if disabled == 1 then
					msg:addByte(0x01);
					msg:addString(disabledReason)
				end

				if (off.state) then
					if (off.state == GameStore.States.STATE_SALE) then
						local daySub = off.validUntil - os.date("*t").day
						if (daySub >= 0) then
							msg:addByte(off.state)
							msg:addU32(os.time() + daySub * 86400)
							msg:addU32(off.basePrice)
							haveSaleOffer = 1
						else
							msg:addByte(GameStore.States.STATE_NONE)
						end
					else
						msg:addByte(off.state)
					end
				else
					msg:addByte(GameStore.States.STATE_NONE)
				end
			end

			local tryOnType = 0
			local type = convertType(offer.type)

			msg:addByte(type);
			if type == GameStore.ConverType.SHOW_NONE then
				msg:addString(offer.icons[1])
			elseif type == GameStore.ConverType.SHOW_MOUNT then
				local mount = Mount(offer.id)
				msg:addU16(mount:getClientId())

				tryOnType = 1
			elseif type == GameStore.ConverType.SHOW_ITEM then
				msg:addU16(offer.itemtype)
			elseif type == GameStore.ConverType.SHOW_OUTFIT then
				msg:addU16(player:getSex() == PLAYERSEX_FEMALE and offer.sexId.female or offer.sexId.male)
				local outfit = player:getOutfit()
				msg:addByte(outfit.lookHead)
				msg:addByte(outfit.lookBody)
				msg:addByte(outfit.lookLegs)
				msg:addByte(outfit.lookFeet)

				tryOnType = 1
			elseif type == GameStore.ConverType.SHOW_HIRELING then
				if player:getSex() == PLAYERSEX_MALE then
					msg:addByte(1)
				else
					msg:addByte(2)
				end
				msg:addU16(offer.sexId.male)
				msg:addU16(offer.sexId.female)
				local outfit = player:getOutfit()
				msg:addByte(outfit.lookHead)
				msg:addByte(outfit.lookBody)
				msg:addByte(outfit.lookLegs)
				msg:addByte(outfit.lookFeet)
			end

			msg:addByte(tryOnType) -- TryOn Type
			msg:addU16(0) -- Collection (to-do)
			msg:addU16(0) -- Popularity Score (to-do)
			msg:addU32(0) -- State New Until (timestamp)

			local configure = useOfferConfigure(offer.type)
			if configure == GameStore.ConfigureOffers.SHOW_CONFIGURE then
				msg:addByte(1)
			else
				msg:addByte(0)
			end

			msg:addU16(0) -- Products Capacity (unnused)
		end
	end

	player:sendButtonIndication(haveSaleOffer, 1)
	msg:sendToPlayer(player)
	msg:delete()
end

function sendStoreTransactionHistory(playerId, page, entriesPerPage)
	local player = Player(playerId)
	if not player then
		return false
	end
	local totalEntries = GameStore.retrieveHistoryTotalPages(player:getAccountId())
	local totalPages = math.ceil(totalEntries / entriesPerPage)
	local entries = GameStore.retrieveHistoryEntries(player:getAccountId(), page, entriesPerPage) -- this makes everything easy!
	if #entries == 0 then
		return addPlayerEvent(sendStoreError, 250, playerId, GameStore.StoreErrors.STORE_ERROR_HISTORY, "You don't have any entries yet.")
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_OpenTransactionHistory)
	msg:addU32(totalPages > 0 and page - 1 or 0x0) -- current page
	msg:addU32(totalPages > 0 and totalPages or 0x0) -- total page
	msg:addByte(#entries)

	for k, entry in ipairs(entries) do
		msg:addU32(0)
		msg:addU32(entry.time)
		msg:addByte(entry.mode) -- 0 = normal, 1 = gift, 2 = refund
		msg:addU32(entry.amount)
		msg:addByte(entry.type) -- 0 = transferable tibia coin, 1 = normal tibia coin, 2 = tournament coin
		msg:addString(entry.description)
		msg:addByte(0) -- details
	end
	msg:sendToPlayer(player)
end

function sendStorePurchaseSuccessful(playerId, message)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_CompletePurchase)
	msg:addByte(0x00)
	msg:addString(message)

	msg:sendToPlayer(player)
end

function sendStoreError(playerId, errorType, message)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_StoreError)

	msg:addByte(errorType)
	msg:addString(message)

	msg:sendToPlayer(player)
end

function sendStoreBalanceUpdating(playerId, updating)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_CoinBalanceUpdating)
	msg:addByte(0x00)
	msg:sendToPlayer(player)

	if updating == true then
		sendUpdatedStoreBalances(playerId)
	end
end

function sendUpdatedStoreBalances(playerId)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_CoinBalanceUpdating)
	msg:addByte(0x01)

	msg:addByte(GameStore.SendingPackets.S_CoinBalance)
	msg:addByte(0x01)

	msg:addU32(player:getCoinsBalance()) -- Tibia Coins
	msg:addU32(player:getCoinsBalance()) -- How many are Transferable
	msg:addU32(0) -- How many are reserved for a Character Auction
	msg:addU32(player:getTournamentBalance()) -- Tournament Coins

	msg:sendToPlayer(player)
end

function sendRequestPurchaseData(playerId, offerId, type)
	local player = Player(playerId)
	if not player then
		return false
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_RequestPurchaseData)
	msg:addU32(offerId)
	msg:addByte(type)
	msg:sendToPlayer(player)
end

--==GameStoreFunctions==--
GameStore.getCategoryByName = function(name)
	for k, category in ipairs(GameStore.Categories) do
		if category.name:lower() == name:lower() then
			if not category.offers then
				return GameStore.getCategoryByName(category.subclasses[1])
			end
			return category
		end
	end
	return nil
end

GameStore.getCategoryByOffer = function(id)
	for Cat_k, category in ipairs(GameStore.Categories) do
		if category.offers then
			for Off_k, offer in ipairs(category.offers) do
				if type(offer.id) == "number" then
					if offer.id == id then
						if not category.offers then
							return GameStore.getCategoryByName(category.subclasses[1])
						end
						return category
					end
				elseif type(offer.id) == "table" then
					for m, offerId in pairs(offer.id) do
						-- in case of outfits we have offer.id = {male = ..., female = ...}
						if offerId == id then
							if not category.offers then
								return GameStore.getCategoryByName(category.subclasses[1])
							end
							return category
						end
					end
				end

			end
		end
	end
	return nil
end

GameStore.getOfferById = function(id)
	for Cat_k, category in ipairs(GameStore.Categories) do
		if category.offers then
			for Off_k, offer in ipairs(category.offers) do
				if type(offer.id) == "number" then
					if offer.id == id then
						return offer
					end
				elseif type(offer.id) == "table" and (offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT or offer.type == GameStore.OfferTypes.OFFER_TYPE_OUTFIT_ADDON) then
					for m, offerId in pairs(offer.id) do
						-- in case of outfits we have offer.id = {male = ..., female = ...}
						if offerId == id then
							return offer
						end
					end

				-- case multi offer
				elseif type(offer.id) == "table" then
					local newoffer = offer
					for i = 1, #offer.id do
						local offerId = offer.id[i]
						if offerId == id then
							newoffer.id = offerId
							newoffer.price = offer.price[i]
							return newoffer
						end
					end
				end

			end
		end
	end
	return nil
end

-- Using for multi offer
function GameStore.getOffersByName(name)
	local offers = {}
	for Cat_k, category in ipairs(GameStore.Categories) do
		if category.offers then
			for Off_k, offer in ipairs(category.offers) do
				if offer.name:lower() == name:lower() then
					table.insert(offers, offer)
				end
			end
		end
	end
	return offers
end

GameStore.haveCategoryRook = function()
	for Cat_k, category in ipairs(GameStore.Categories) do
		if category.offers and category.rookgaard then
			return true
		end
	end

	return false
end

GameStore.haveOfferRook = function(id)
	for Cat_k, category in ipairs(GameStore.Categories) do
		if category.offers and category.rookgaard then
			for Off_k, offer in ipairs(category.offers) do
				if offer.id == id then
					return true
				end
			end
		end
	end
	return nil
end

GameStore.insertHistory = function(accountId, mode, description, coinAmount, coinType)
	return db.query(string.format("INSERT INTO `store_history`(`account_id`, `mode`, `description`, `coin_type`, `coin_amount`, `time`) VALUES (%s, %s, %s, %s, %s, %s)", accountId, mode, db.escapeString(description), coinType, coinAmount, os.time()))
end

GameStore.retrieveHistoryTotalPages = function (accountId)
	local resultId = db.storeQuery("SELECT count(id) as total FROM store_history WHERE account_id = " .. accountId)
	if resultId == false then
		return 0
	end

	local totalPages = result.getDataInt(resultId, "total")
	result.free(resultId)
	return totalPages
end

GameStore.retrieveHistoryEntries = function(accountId, currentPage, entriesPerPage)
	local entries = {}
	local offset = currentPage > 1 and entriesPerPage * (currentPage - 1) or 0

	local resultId = db.storeQuery("SELECT * FROM `store_history` WHERE `account_id` = " .. accountId .. " ORDER BY `time` DESC LIMIT " .. offset .. ", " .. entriesPerPage .. ";")
	if resultId ~= false then
		repeat
			local entry = {
				mode = result.getDataInt(resultId, "mode"),
				description = result.getDataString(resultId, "description"),
				amount = result.getDataInt(resultId, "coin_amount"),
				type = result.getDataInt(resultId, "coin_type"),
				time = result.getDataInt(resultId, "time"),
			}
			table.insert(entries, entry)
		until not result.next(resultId)
		result.free(resultId)
	end
	return entries
end

GameStore.getDefaultDescription = function(offerType, count)
	local t, descList = GameStore.OfferTypes
	if offerType == t.OFFER_TYPE_OUTFIT or offerType == t.OFFER_TYPE_OUTFIT_ADDON then
		descList = GameStore.DefaultDescriptions.OUTFIT
	elseif offerType == t.OFFER_TYPE_MOUNT then
		descList = GameStore.DefaultDescriptions.MOUNT
	elseif offerType == t.OFFER_TYPE_NAMECHANGE then
		descList = GameStore.DefaultDescriptions.NAMECHANGE
	elseif offerType == t.OFFER_TYPE_SEXCHANGE then
		descList = GameStore.DefaultDescriptions.SEXCHANGE
	elseif offerType == t.OFFER_TYPE_EXPBOOST then
		descList = GameStore.DefaultDescriptions.EXPBOOST
	elseif offerType == t.OFFER_TYPE_PREYSLOT then
		descList = GameStore.DefaultDescriptions.PREYSLOT
	elseif offerType == t.OFFER_TYPE_PREYBONUS then
		descList = GameStore.DefaultDescriptions.PREYBONUS
	elseif offerType == t.OFFER_TYPE_TEMPLE then
		descList = GameStore.DefaultDescriptions.TEMPLE
	end

	return descList[math.floor(math.random(1, #descList))] or ""
end

GameStore.canUseHirelingName = function(name)
	local result = {
		ability = false
	}
	if name:len() < 3 or name:len() > 14 then
		result.reason = "The length of the hireling name must be between 3 and 14 characters."
		return result
	end

	local match = name:gmatch("%s+")
	local count = 0
	for v in match do
		count = count + 1
	end

	local matchtwo = name:match("^%s+")
	if (matchtwo) then
		result.reason = "The hireling name can't have whitespace at begin."
		return result
	end

	local matchthree = name:match("[^a-zA-Z ]")
	if (matchthree) then
		result.reason = "The hireling name has invalid characters"
		return result
	end

	if (count > 1) then
		result.reason = "The hireling name have more than 1 whitespace."
		return result
	end

	-- just copied from znote aac.
	local words = { "owner", "gamemaster", "hoster", "admin", "staff", "tibia", "account", "god", "anal", "ass", "fuck", "sex", "hitler", "pussy", "dick", "rape", "adm", "cm", "gm", "tutor", "counsellor" }
	local split = name:split(" ")
	for k, word in ipairs(words) do
		for k, nameWord in ipairs(split) do
			if nameWord:lower() == word then
				result.reason = "You can't use word \"" .. word .. "\" in your hireling name."
				return result
			end
		end
	end

	local tmpName = name:gsub("%s+", "")
	for i = 1, #words do
		if (tmpName:lower():find(words[i])) then
			result.reason = "You can't use word \"" .. words[i] .. "\" with whitespace in your hireling name."
			return result
		end
	end

	result.ability = true
	return result
end

GameStore.canChangeToName = function(name)
	local result = {
		ability = false
	}
	if name:len() < 3 or name:len() > 14 then
		result.reason = "The length of your new name must be between 3 and 14 characters."
		return result
	end

	local match = name:gmatch("%s+")
	local count = 0
	for v in match do
		count = count + 1
	end

	local matchtwo = name:match("^%s+")
	if (matchtwo) then
		result.reason = "Your new name can't have whitespace at begin."
		return result
	end

	if (count > 1) then
		result.reason = "Your new name have more than 1 whitespace."
		return result
	end

	-- just copied from znote aac.
	local words = { "owner", "gamemaster", "hoster", "admin", "staff", "tibia", "account", "god", "anal", "ass", "fuck", "sex", "hitler", "pussy", "dick", "rape", "adm", "cm", "gm", "tutor", "counsellor" }
	local split = name:split(" ")
	for k, word in ipairs(words) do
		for k, nameWord in ipairs(split) do
			if nameWord:lower() == word then
				result.reason = "You can't use word \"" .. word .. "\" in your new name."
				return result
			end
		end
	end

	local tmpName = name:gsub("%s+", "")
	for i = 1, #words do
		if (tmpName:lower():find(words[i])) then
			result.reason = "You can't use word \"" .. words[i] .. "\" with whitespace in your new name."
			return result
		end
	end

	if MonsterType(name) then
		result.reason = "Your new name \"" .. name .. "\" can't be a monster's name."
		return result
	elseif Npc(name) then
		result.reason = "Your new name \"" .. name .. "\" can't be a npc's name."
		return result
	end

	local letters = "{}|_*+-=<>0123456789@#%^&()/*'\\.,:;~!\"$"
	for i = 1, letters:len() do
		local c = letters:sub(i, i)
		for i = 1, name:len() do
			local m = name:sub(i, i)
			if m == c then
				result.reason = "You can't use this letter \"" .. c .. "\" in your new name."
				return result
			end
		end
	end
	result.ability = true
	return result
end

--
-- PURCHASE PROCESSOR FUNCTIONS
-- Must throw an error when the purchase has not been made. The error must of
-- take a table {code = ..., message = ...} if the error is handled. When no code
-- index is present the error is assumed to be unhandled.

function GameStore.processItemPurchase(player, offerId, offerCount)
	if player:getFreeCapacity() < ItemType(offerId):getWeight(offerCount) then
		return error({ code = 0, message = "Please make sure you have free capacity to hold this item."})
	end

	local inbox = player:getSlotItem(CONST_SLOT_STORE_INBOX)
	if inbox and inbox:getEmptySlots() > offerCount then
		for t = 1, offerCount do
			inbox:addItem(offerId, offerCount or 1)
		end
	else
		return error({ code = 0, message = "Please make sure you have free slots in your store inbox."})
	end
end

function GameStore.processChargesPurchase(player, itemtype, name, charges)
	if player:getFreeCapacity() < ItemType(itemtype):getWeight(1) then
		return error({ code = 0, message = "Please make sure you have free capacity to hold this item."})
	end

	local inbox = player:getSlotItem(CONST_SLOT_STORE_INBOX)
	if inbox and inbox:getEmptySlots() > 1 then
		inbox:addItem(itemtype, charges)
	else
		return error({ code = 0, message = "Please make sure you have free slots in your store inbox."})
	end
end

function GameStore.processSignleBlessingPurchase(player, blessId, count)
	player:addBlessing(blessId, count)
end

function GameStore.processAllBlessingsPurchase(player, count)
	player:addBlessing(1, count)
	player:addBlessing(2, count)
	player:addBlessing(3, count)
	player:addBlessing(4, count)
	player:addBlessing(5, count)
	player:addBlessing(6, count)
	player:addBlessing(7, count)
	player:addBlessing(8, count)
end

function GameStore.processInstantRewardAccess(player, offerCount)
	if player:getCollectionTokens() + offerCount >= 91 then
		return error({code = 1, message = "You cannot own more than 90 reward tokens."})
	end
	player:setCollectionTokens(player:getCollectionTokens() + offerCount)
end

function GameStore.processCharmsPurchase(player)
	player:charmExpansion(true)
end

function GameStore.processPremiumPurchase(player, offerId)
	player:addPremiumDays(offerId - 3000)
end

function GameStore.processStackablePurchase(player, offerId, offerCount, offerName)
	local function isKegItem(itemId)
		return itemId >= ITEM_KEG_START and itemId <= ITEM_KEG_END
	end

	local PARCEL_ID = 3504
	local isKeg = isKegItem(offerId)

    if isKeg then
        if player:getFreeCapacity() < ItemType(offerId):getWeight(1) + ItemType(PARCEL_ID):getWeight() then
            return error({code = 0, message = "Please make sure you have free capacity to hold this item."})
        end
    elseif player:getFreeCapacity() < ItemType(offerId):getWeight(offerCount) + ItemType(PARCEL_ID):getWeight() then
        return error({code = 0, message = "Please make sure you have free capacity to hold this item."})
    end

	local inbox = player:getSlotItem(CONST_SLOT_STORE_INBOX)
	if inbox and inbox:getEmptySlots() > 0 then
		if (isKeg and offerCount > 500) or offerCount > 100 then
			local parcel = inbox:addItem(PARCEL_ID, 1)
			if parcel then
				parcel:setAttribute(ITEM_ATTRIBUTE_NAME, '' .. offerCount .. 'x ' .. offerName .. ' package.')
				local pendingCount = offerCount
				local limit = isKeg and 500 or 100
				while (pendingCount > 0) do
					local pack
					if (pendingCount > limit) then
						pack = limit
					else
						pack = pendingCount
					end
					if isKeg then
						local kegItem = parcel:addItem(offerId, 1)
						kegItem:setAttribute(ITEM_ATTRIBUTE_CHARGES, pack)
					else
						parcel:addItem(offerId, pack)
					end
					pendingCount = pendingCount - pack
				end
			end
		else
			local item = inbox:addItem(offerId, isKeg and 1 or offerCount)
			if item and isKeg then
				item:setAttribute(ITEM_ATTRIBUTE_CHARGES, offerCount)
			end
		end
	else
		return error({code = 0, message = "Please make sure you have free slots in your store inbox."})
	end
end

function GameStore.processHouseRelatedPurchase(player, offerId, offerCount)
	local function isCaskItem(itemId)
		return (itemId >= ITEM_HEALTH_CASK_START and itemId <= ITEM_HEALTH_CASK_END) or
		(itemId >= ITEM_MANA_CASK_START and itemId <= ITEM_MANA_CASK_END) or
		(itemId >= ITEM_SPIRIT_CASK_START and itemId <= ITEM_SPIRIT_CASK_END)
	end

	local inbox = player:getSlotItem(CONST_SLOT_STORE_INBOX)
	if inbox and inbox:getEmptySlots() > 0 then
		local decoKit = inbox:addItem(23398, 1)
		if decoKit then
			decoKit:setAttribute(ITEM_ATTRIBUTE_DESCRIPTION, "You bought this item in the Store.\nUnwrap it in your own house to create a <" .. ItemType(offerId):getName() .. ">.")
			decoKit:setCustomAttribute("unWrapId", offerId)
			if isCaskItem(offerId) then
				decoKit:setAttribute(ITEM_ATTRIBUTE_DATE, offerCount)
			end
		end
	else
		return error({code = 0, message = "Please make sure you have free slots in your store inbox."})
	end
end

function GameStore.processOutfitPurchase(player, offerSexIdTable, addon)
	local looktype
	local _addon = addon and addon or 0

	if player:getSex() == PLAYERSEX_MALE then
		looktype = offerSexIdTable.male
	elseif player:getSex() == PLAYERSEX_FEMALE then
		looktype = offerSexIdTable.female
	end

	if not looktype then
		return error({code = 0, message = "This outfit seems not to suit your sex, we are sorry for that!"})
	elseif (not player:hasOutfit(looktype, 0)) and (_addon == 1 or _addon == 2) then
		return error({code = 0, message = "You must own the outfit before you can buy its addon."})
	elseif player:hasOutfit(looktype, _addon) then
		return error({code = 0, message = "You already own this outfit."})
	else
		if not (player:addOutfitAddon(looktype, _addon))  -- TFS call failed
			or (not player:hasOutfit(looktype, _addon))   -- Additional check; if the looktype doesn't match player sex for example,
			--   then the TFS check will still pass... bug? (TODO)
		then
			error({ code = 0, message = "There has been an issue with your outfit purchase. Your purchase has been cancelled."})
		else
			player:addOutfitAddon(offerSexIdTable.male, _addon)
			player:addOutfitAddon(offerSexIdTable.female, _addon)
		end
	end
end

function GameStore.processMountPurchase(player, offerId)
	if player:hasMount(offerId) then
		return error({code = 0, message = "You already own this mount."})
	end

	player:addMount(offerId)
end

function GameStore.processNameChangePurchase(player, offer, productType, newName)
	local playerId = player:getId()

	if productType == GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_NAMECHANGE then
		local tile = Tile(player:getPosition())
		if (tile) then
			if (not tile:hasFlag(TILESTATE_PROTECTIONZONE)) then
				return error({code = 1, message = "You can change name only in Protection Zone."})
			end
		end

		local resultId = db.storeQuery("SELECT * FROM `players` WHERE `name` = " .. db.escapeString(newName) .. "")
		if resultId ~= false then
			return error({code = 1, message = "This name is already used, please try again!"})
		end

		local result = GameStore.canChangeToName(newName)
		if not result.ability then
			return error({code = 1, message = result.reason})
		end

		player:makeCoinTransaction(offer)

		local message = string.format("You have purchased %s for %d coins.", offer.name, offer.price)
		addPlayerEvent(sendStorePurchaseSuccessful, 500, playerId, message)

		newName = newName:lower():gsub("(%l)(%w*)", function(a, b) return string.upper(a) .. b end)
		db.query("UPDATE `players` SET `name` = " .. db.escapeString(newName) .. " WHERE `id` = " .. player:getGuid())
		message = "You have successfully changed you name, relogin!"
		addEvent(function()
			local player = Player(playerId)
			if not player then
				return false
			end

			player:remove()
		end, 1000)
	-- If not, we ask him to do!
	else
		return addPlayerEvent(sendRequestPurchaseData, 250, playerId, offer.id, GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_NAMECHANGE)
	end
end

function GameStore.processSexChangePurchase(player)
	player:toggleSex()
end


function GameStore.processExpBoostPuchase(player)
	local currentExpBoostTime = player:getExpBoostStamina()
	local expBoostCount = player:getStorageValue(GameStore.Storages.expBoostCount)

	player:setStoreXpBoost(50)
	player:setExpBoostStamina(currentExpBoostTime + 3600)

	if (player:getStorageValue(GameStore.Storages.expBoostCount) == -1 or expBoostCount == 6) then
		player:setStorageValue(GameStore.Storages.expBoostCount, 1)
	end

	player:setStorageValue(GameStore.Storages.expBoostCount, expBoostCount + 1)
end

function GameStore.processPreyThirdSlot(player)
	if player:preyThirdSlot() then
		return error({code = 1, message = "You already have unlocked all prey slots."})
	end
	player:preyThirdSlot(true)
end

function GameStore.processTaskHuntingThirdSlot(player)
	if player:taskHuntingThirdSlot() then
		return error({code = 1, message = "You already have unlocked all task hunting slots."})
	end
	player:taskHuntingThirdSlot(true)
end

function GameStore.processPreyBonusReroll(player, offerCount)
	if player:getPreyCards() + offerCount >= 51 then
		return error({code = 1, message = "You cannot own more than 50 prey wildcards."})
	end
	player:addPreyCards(offerCount)
end

function GameStore.processTempleTeleportPurchase(player)
	if player:getCondition(CONDITION_INFIGHT, CONDITIONID_DEFAULT) or player:isPzLocked() then
		return error({code = 0, message = "You can't use temple teleport in fight!"})
	end

	player:teleportTo(player:getTown():getTemplePosition())
	player:getPosition():sendMagicEffect(CONST_ME_TELEPORT)
	player:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'You have been teleported to your hometown.')
end

function GameStore.processHirelingPurchase(player, offer, productType, hirelingName, chosenSex)
	local playerId = player:getId()
	local offerId = offer.id

	if productType == GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_HIRELING then

		local result = GameStore.canUseHirelingName(hirelingName)
		if not result.ability then
			return error({code = 1, message = result.reason})
		end

		hirelingName = hirelingName:lower():gsub("(%l)(%w*)", function(a, b) return string.upper(a) .. b end)

		local hireling = player:addNewHireling(hirelingName, chosenSex)
		if not hireling then
			return error({code = 1, message = "Error delivering your hireling lamp, try again later."})
		end

		player:makeCoinTransaction(offer, hirelingName)
		local message = "You have successfully bought " .. hirelingName
		return addPlayerEvent(sendStorePurchaseSuccessful, 650, playerId, message)
		-- If not, we ask him to do!
	else
		if player:getHirelingsCount() >= 10 then
			return error({code = 1, message = "You cannot have more than 10 hirelings."})
		end
		-- TODO: Use the correct dialog (byte 0xDB) on client 1205+
		-- for compatibility, request name using the change name dialog
		return addPlayerEvent(sendRequestPurchaseData, 250, playerId, offerId, GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_HIRELING)
	end
end

function GameStore.processHirelingChangeNamePurchase(player, offer, productType, newHirelingName)
	local playerId = player:getId()
	local offerId = offer.id
	if productType == GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_NAMECHANGE then
		local result = GameStore.canUseHirelingName(newHirelingName)
		if not result.ability then
			return error({code = 1, message = result.reason})
		end

		newHirelingName = newHirelingName:lower():gsub("(%l)(%w*)", function(a, b) return string.upper(a) .. b end)

		local message = 'Close the store window to select which hireling should be renamed to '.. newHirelingName
		addPlayerEvent(sendStorePurchaseSuccessful, 200, playerId, message)

		addPlayerEvent(HandleHirelingNameChange, 550, playerId, offer, newHirelingName)

	else
		return addPlayerEvent(sendRequestPurchaseData, 250, playerId, offerId, GameStore.ClientOfferTypes.CLIENT_STORE_OFFER_NAMECHANGE)
	end
end

function GameStore.processHirelingChangeSexPurchase(player, offer)
	local playerId = player:getId()

	local message = 'Close the store window to select which hireling should have the sex changed.'
	addPlayerEvent(sendStorePurchaseSuccessful, 200, playerId, message)

	addPlayerEvent(HandleHirelingSexChange, 550, playerId, offer)
end

function GameStore.processHirelingSkillPurchase(player, offer)
	player:getPosition():sendMagicEffect(CONST_ME_MAGIC_BLUE)
	local skill = offer.id - HIRELING_STORAGE.SKILL
	player:enableHirelingSkill(skill)
	player:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'A new hireling skill has been added to all your hirelings')
end

function GameStore.processHirelingOutfitPurchase(player, offer)
	player:getPosition():sendMagicEffect(CONST_ME_MAGIC_GREEN)
	local outfit = offer.id - HIRELING_STORAGE.OUTFIT
	player:enableHirelingOutfit(outfit)
	player:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'A new hireling outfit has been added to all your hirelings')
end

--==Player==--

--- Tibia Coins
function Player.getCoinsBalance(self)
	resultId = db.storeQuery("SELECT `coins` FROM `accounts` WHERE `id` = " .. self:getAccountId())
	if not resultId then return 0 end
	return result.getDataInt(resultId, "coins")
end

function Player.setCoinsBalance(self, coins)
	db.query("UPDATE `accounts` SET `coins` = " .. coins .. " WHERE `id` = " .. self:getAccountId())
	return true
end

function Player.canRemoveCoins(self, coins)
	if self:getCoinsBalance() < coins then
		return false
	end
	return true
end

function Player.removeCoinsBalance(self, coins)
	if self:canRemoveCoins(coins) then
		return self:setCoinsBalance(self:getCoinsBalance() - coins)
	end

	return false
end

function Player.addCoinsBalance(self, coins, update)
	self:setCoinsBalance(self:getCoinsBalance() + coins)
	if update then sendStoreBalanceUpdating(self, true) end
	return true
end

--- Tournament Coins
function Player.getTournamentBalance(self)
	resultId = db.storeQuery("SELECT `tournament_coins` FROM `accounts` WHERE `id` = " .. self:getAccountId())
	if not resultId then
		return 0
	end
	return result.getDataInt(resultId, "tournament_coins")
end

function Player.setTournamentBalance(self, tournament)
	db.query("UPDATE `accounts` SET `tournament_coins` = " .. tournament .. " WHERE `id` = " .. self:getAccountId())
	return true
end

function Player.canRemoveTournament(self, tournament)
	if self:getTournamentBalance() < tournament then
		return false
	end
	return true
end

function Player.removeTournamentBalance(self, tournament)
	if self:canRemoveTournament(tournament) then
		return self:setTournamentBalance(self:getTournamentBalance() - tournament)
	end

	return false
end

function Player.addTournamentBalance(self, tournament, update)
	self:setTournamentBalance(self:getTournamentBalance() + tournament)
	if update then sendStoreBalanceUpdating(self, true) end
	return true
end

--- Support Functions
function Player.makeCoinTransaction(self, offer, desc)
	local op = true

	if desc then
		desc = offer.name .. ' (' .. desc ..')'
	else
		desc = offer.name
	end
	
	-- Remove coins
	if offer.coinType == GameStore.CointType.Tournament then
		op = self:removeTournamentBalance(offer.price)
	else
		op = self:removeCoinsBalance(offer.price)
	end

	-- When the transaction is suscessfull add to the history
	if op then
		GameStore.insertHistory(self:getAccountId(), GameStore.HistoryTypes.HISTORY_TYPE_NONE, desc, (offer.price) * -1, offer.coinType)
	end

	return op
end

function Player.canPayForOffer(self, coins, type)
	if type == GameStore.CointType.Tournament then
		return self:canRemoveTournament(coins)
	else
		return self:canRemoveCoins(coins)
	end
end

--- Other players functions

function Player.sendButtonIndication(self, value1, value2)
	local msg = NetworkMessage()
	msg:addByte(0x19)
	msg:addByte(value1) -- Sale
	msg:addByte(value2) -- New Item
	msg:sendToPlayer(self)
end

function Player.toggleSex(self)
	local currentSex = self:getSex()
	local playerOutfit = self:getOutfit()

	playerOutfit.lookAddons = 0
	if currentSex == PLAYERSEX_FEMALE then
		self:setSex(PLAYERSEX_MALE)
		playerOutfit.lookType = 128
	else
		self:setSex(PLAYERSEX_FEMALE)
		playerOutfit.lookType = 136
	end
	self:setOutfit(playerOutfit)
end

local function getHomeOffers(playerId)
	local player = Player(playerId)
	if not player then return {} end

	local GameStoreCategories = GameStore.Categories

	local offers = {}
	if (GameStoreCategories) then
		for k, category in ipairs(GameStoreCategories) do
			if category.offers then
				for _, offer in ipairs(category.offers) do
					if offer.home then
						table.insert(offers, offer)
					end
				end
			end
		end
	end

	return offers
end

function sendHomePage(playerId)
	local player = Player(playerId)
	if not player then
		return
	end

	local msg = NetworkMessage()
	msg:addByte(GameStore.SendingPackets.S_StoreOffers)

	msg:addString("Home")
	msg:addU32(0x0) -- Redirect ID (not used here)
	msg:addByte(0x0) -- Window Type
	msg:addByte(0x0) -- Collections Size
	msg:addU16(0x00) -- Collection Name

	local homeOffers = getHomeOffers(player:getId())
	msg:addU16(#homeOffers) -- offers

	for p, offer in pairs(homeOffers)do
		msg:addString(offer.name)
		msg:addByte(0x1) -- ?
		msg:addU32(offer.id or 0) -- id
		msg:addU16(0x1)
		msg:addU32(offer.price)
		msg:addByte(offer.coinType or 0x00)
		local disabled, disabledReason = player:canBuyOffer(offer).disabled, player:canBuyOffer(offer).disabledReason
		msg:addByte(disabled)
		if disabled == 1 then
			msg:addByte(0x01);
			msg:addString(disabledReason)
		end

		msg:addByte(0x00)

		local type = convertType(offer.type)

		msg:addByte(type);
		if type == GameStore.ConverType.SHOW_NONE then
			msg:addString(offer.icons[1])
		elseif type == GameStore.ConverType.SHOW_MOUNT then
			local mount = Mount(offer.id)
			msg:addU16(mount:getClientId())
		elseif type == GameStore.ConverType.SHOW_ITEM then
			msg:addU16(offer.itemtype)
		elseif type == GameStore.ConverType.SHOW_OUTFIT then
			msg:addU16(player:getSex() == PLAYERSEX_FEMALE and offer.sexId.female or offer.sexId.male)
			local outfit = player:getOutfit()
			msg:addByte(outfit.lookHead)
			msg:addByte(outfit.lookBody)
			msg:addByte(outfit.lookLegs)
			msg:addByte(outfit.lookFeet)
		end

		msg:addByte(0) -- TryOn Type
		msg:addU16(0) -- Collection
		msg:addU16(0) -- Popularity Score
		msg:addU32(0) -- State New Until
		msg:addByte(0) -- User Configuration
		msg:addU16(0) -- Products Capacity
	end

	local banner = HomeBanners
	msg:addByte(#banner.images)
	for m, image in ipairs(banner.images) do
		msg:addString(image)
		msg:addByte(0x04) -- Banner Type (offer)
		msg:addU32(0x00) -- Offer Id
		msg:addByte(0)
		msg:addByte(0)
	end

	msg:addByte(banner.delay) -- Delay to swtich images

	msg:sendToPlayer(player)

end

function Player:openStore(serviceName) --exporting the method so other scripts can use to open store
	openStore(self:getId())

	--local serviceType = msg:getByte()
	local category = GameStore.Categories and GameStore.Categories[1] or nil

	if serviceName and serviceName:lower() == "home" then
		return sendHomePage(self:getId())
	end

	if serviceName and GameStore.getCategoryByName(serviceName) then
		category = GameStore.getCategoryByName(serviceName)
	end

	if category then
		addPlayerEvent(sendShowStoreOffers, 50, playerId, category)
	end
end

-- Hireling Helpers
function HandleHirelingNameChange(playerId, offer, newHirelingName)
	local player = Player(playerId);

	local cb = function(playerId, data, hireling)
		local offer = data.offer
		local newHirelingName = data.newHirelingName
		local player = Player(playerId);
		if not hireling then
			return player:showInfoModal("Error","Your must select a hireling.")
		end

		if hireling.active > 0 then
			return player:showInfoModal("Error", "Your hireling must be inside his/her lamp.")
		end

		local oldName = hireling.name
		hireling.name = newHirelingName

		if not player:makeCoinTransaction(data.offer, oldName .. ' to ' .. newHirelingName) then
			return player:showInfoModal("Error", "Transaction error")
		end

		local lamp = player:findHirelingLamp(hireling:getId())
		if lamp then
			lamp:setAttribute(ITEM_ATTRIBUTE_DESCRIPTION, "This mysterious lamp summons your very own personal hireling.\nThis item cannot be traded.\nThis magic lamp is the home of " .. hireling:getName() .. ".")
		end
		Spdlog.debug(string.format('%s has been renamed to %s', oldName, newHirelingName))
		sendUpdatedStoreBalances(playerId)
	end

	player:sendHirelingSelectionModal('Choose a Hireling', 'Select a hireling below', cb, {offer=offer, newHirelingName=newHirelingName})
end

function HandleHirelingSexChange(playerId, offer)
	local player = Player(playerId);

	local cb = function(playerId, data, hireling)
		local player = Player(playerId);
		if not hireling then
			return player:showInfoModal("Error","Your must select a hireling.")
		end

		if hireling.active > 0 then
			return player:showInfoModal("Error", "Your hireling must be inside his/her lamp.")
		end

		if not player:makeCoinTransaction(data.offer, hireling:getName()) then
			return player:showInfoModal("Error", "Transaction error")
		end

		local changeTo,sexString,lookType
		if hireling.sex == HIRELING_SEX.FEMALE then
			changeTo = HIRELING_SEX.MALE
			sexString = 'male'
			lookType = HIRELING_OUTFIT_DEFAULT.male
		else
			changeTo = HIRELING_SEX.FEMALE
			sexString = 'female'
			lookType = HIRELING_OUTFIT_DEFAULT.female
		end

		hireling.sex = changeTo
		hireling.looktype = lookType

		Spdlog.debug(string.format('%s sex was changed to %s', hireling:getName(), sexString))
		sendUpdatedStoreBalances(playerId)
	end

	player:sendHirelingSelectionModal('Choose a Hireling', 'Select a hireling below', cb, {offer=offer})
end
