AlchemyTooltips/ItemHooks.lua at master · Hyperioxes/AlchemyTooltips · GitHub

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local function ItemHook(functionName, itemLinkFunction,exception,tableOfOrder)
    local old = _G[functionName]
    _G[ATT_Variables.name][functionName] = old
    _G[functionName] = function(...)
		local link = itemLinkFunction(...)
			if GetItemLinkItemType(link) == 30 or GetItemLinkItemType(link) == 7 then
				newText,qualityNumber,iconTexture = ATT_Functions:processItemLink(link)
				if exception == "Quality" then
					return qualityNumber
				elseif exception == "Name" then
					return newText
				else
					local data = {old(...)} --{icon,name,quality}
					if iconTexture ~= 0 then
						data[tableOfOrder[1]] = iconTexture
					end
					data[tableOfOrder[2]] = newText
					if qualityNumber ~= 0 then
						data[tableOfOrder[3]] = qualityNumber
					end
					return unpack(data)
				end
			end
        return old(...)
    end
end

local function ItemHookIcon()
    local old = _G["GetSlotTexture"]
    _G[ATT_Variables.name]["GetSlotTexture"] = old
    _G["GetSlotTexture"] = function(...)
		local link = GetSlotItemLink(...)
		if GetItemLinkItemType(link) == 30 or GetItemLinkItemType(link) == 7 then
			iconTexture = ATT_Functions:GetCustomIconFromItemLink(link)
			if iconTexture then
				return iconTexture
			end
		end
		return old(...)
    end
end

local function ItemHookQuality()
    local old = _G["GetSlotItemDisplayQuality"]
    _G[ATT_Variables.name]["GetSlotItemDisplayQuality"] = old
    _G["GetSlotItemDisplayQuality"] = function(...)
		local link = GetSlotItemLink(...)
		if GetItemLinkItemType(link) == 30 or GetItemLinkItemType(link) == 7 then
			quality = ATT_Functions:GetCustomQualityFromItemLink(link)
			if quality then
				return quality
			end
		end
		return old(...)
    end
end

local function ItemHookAttachedIcon()
	local old = _G["GetQueuedItemAttachmentInfo"]
    _G[ATT_Variables.name]["GetQueuedItemAttachmentInfo"] = old
    _G["GetQueuedItemAttachmentInfo"] = function(...)
		local data = {old(...)} -- bagId, slotIndex, icon, stack
		local link = GetItemLink(data[1],data[2])
		if GetItemLinkItemType(link) == 30 or GetItemLinkItemType(link) == 7 then
			iconTexture = ATT_Functions:GetCustomIconFromItemLink(link)
			if iconTexture then
				data[3] = iconTexture
				return unpack(data)
			end
		end
		return old(...)
    end
end


function ATT_HookItems()
	ItemHook("GetTradingHouseListingItemInfo", GetTradingHouseListingItemLink,nil,{1,2,3}) -- guild trader
	ItemHook("GetTradingHouseSearchResultItemInfo", GetTradingHouseSearchResultItemLink,nil,{1,2,3})

	ItemHookQuality() -- quick slots
	ItemHookIcon()
	ItemHook("GetSlotName", GetSlotItemLink,"Name")

	ItemHook("GetItemInfo",GetItemLink,nil,{1,0,9}) -- bags
	ItemHook("GetItemName",GetItemLink,nil,{0,1,0})

	ItemHook("GetTradeItemInfo", GetTradeItemLink, nil,{2,1,4}) -- trade between players

	ItemHook("GetBuybackItemInfo", GetBuybackItemLink, nil,{1,2,7}) -- buyback

	ItemHook("GetAttachedItemInfo", GetAttachedItemLink, nil,{1,0,0}) -- mail
	ItemHookAttachedIcon()

	--overrideZosFunction("GetLootItemInfo", GetLootItemLink, nil,{3,2,5}) -- loot, not needed for now and also bugged
end