Acceptance

local popups = {}
local _G = getfenv(0)
for i=1,STATICPOPUP_NUMDIALOGS do
	table.insert(popups, _G["StaticPopup"..i])
end

local function IsFriend(name)
	for i=1,GetNumFriends() do
		if GetFriendInfo(i) == name then return true end
	end

	if not IsInGuild() then return end

	for i=1, GetNumGuildMembers() do
		if GetGuildRosterInfo(i) == name then return true end
	end
end


local function Acceptance_OnEvent()
	local inviter = arg1
	if IsFriend(inviter) then
		AcceptGroup()
		for _,f in ipairs(popups) do
			if f:IsVisible() and f.which == "PARTY_INVITE" then f:Hide() end
		end
	else SendWho("n-\"".. inviter.. "\"") end
end


Acceptance = CreateFrame("Frame")
Acceptance:SetScript("OnEvent", Acceptance_OnEvent)
Acceptance:RegisterEvent("PARTY_INVITE_REQUEST")