local msg = "%s: %s (%s)"
Interrupt = CreateFrame("Frame", nil, UIParent);
Interrupt:RegisterEvent("PLAYER_LOGIN");
Interrupt:RegisterEvent("PARTY_MEMBERS_CHANGED");
Interrupt:SetScript("OnEvent", function(self, event, subEvent, sourceGUID, _, _, _, destName, _, _, spellName, _, _, extraSkillName)
self:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED");
    if event == "PLAYER_LOGIN" then
        playerGuid = UnitGUID("player");
    else
        if subEvent == "SPELL_INTERRUPT" then
            local text = msg:format(spellName, extraSkillName, destName);
            if event == "PARTY_MEMBERS_CHANGED" then
                local n = GetNumPartyMembers();
                if n > 5 then
                    SendChatMessage(text, "RAID");
                elseif  n <= 5 then
                    SendChatMessage(text, "GROUP");
                elseif n == 0 then
                    SendChatMessage(text, "SAY");
                    SendChatMessage(text, "YELL");
                end;
            end;
        end;
    end;
end);