[Ketho]

local guids = {}
local f = CreateFrame("Frame")
 
function f:NAME_PLATE_UNIT_ADDED(unit)
    guids[UnitGUID(unit)] = unit
end
 
function f:NAME_PLATE_UNIT_REMOVED(unit)
    guids[UnitGUID(unit)] = nil
end
 
function f:COMBAT_LOG_EVENT_UNFILTERED()
    local timestamp, subevent, _, sourceGUID, sourceName, sourceFlags, _, destGUID, destName, _, _, spellID, spellName = CombatLogGetCurrentEventInfo()
    if subevent == "SPELL_CAST_START" then
        local unit = guids[sourceGUID]
        if unit and UnitIsUnit(unit.."target", "player") and bit.band(sourceFlags, COMBATLOG_OBJECT_REACTION_HOSTILE) > 0 then
            print( format("%s is casting %s on me", sourceName, GetSpellLink(spellID)) )
        end
    end
end
 
f:SetScript("OnEvent", function(self, event, ...)
    f[event](self, ...)
end)
 
f:RegisterEvent("NAME_PLATE_UNIT_ADDED")
f:RegisterEvent("NAME_PLATE_UNIT_REMOVED")
f:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED")