Chess Event DBM AddOn

Hello, Im Despite from DatWoW private server. I've been trying to create a DBM event for a custom chess event boss in Karazhan.

The ChessEvent:
There 2 "main" bosses stading on the middle of the table, a Paladin and a Warrior. (King Llane and Warchief Blackhand)
When engaged they will both start a running enrage timer of 8 minutes which will wipe the whole raid.*
King Llane is casting Hammer of Justice on the 2nd one in his threat list every 10-50sec.(random)*
Warchief Blackhand casts Mortal Strike on his highest one in threat every 10-40sec.(random)
When Llane drops down to 90%(180k/200k) hp he will summon 2 healers to the left side of the chess board.*
When Warchief Blackhand drops down to 90%(270k/300k) hp he will summon 1 healer to the left side of the chess board.
The healers cast a 3 seconds cast Chain heal for 15k on them selves jumping to the nearby friendlies. This is with a 6,5seconds CD starting when the casting begins*
Both Llane and Blackhand summon adds to the corners of the table every 15sec. Starting from the Llane spawning 4 adds and then Blackhand. When Llane dies (must be killed first) he will stop summoning the adds.*
Additional adds(4) will spawn at the left and right side of the table when which ever of the "main bosses" drop to 60% or 40% hp all 4 will be spawned but in random que:

• A Water Elemental - Casting AoE Waterbolt damaging the whole raid (discard LoS) every 5-10seconds.*
  
• A "Daemon" - Casting AoE Shadowbolt (such as Kazzak's one) damaging the whole raid (discard LoS) every 5-10seconds.*
  
• A Warlock - Casting Fel Fireball on a random target with a 3sec cast time.*
  
• A Mage - Casting Frostbolt on a random target with a 3sec cast time*

*(Important)

Thats the base of the Boss Encounter which im trying to make a DBM addition for.
I've got no Lua/xml experience other than hello world wow addons... So im requesting some help here.



Here's what i've done this far:

DMB_Karazhan(folder)
Added this as the last ine in DBM_Karazhan.toc

Code:

Chess.lua

Created new file Chess.lua

Code:

local Chess = DBM:NewBossMod("Chess", DBM_CE_NAME, DBM_CE_DESCRIPTION, DBM_KARAZHAN, DBM_KARAZHAN_TAB, 14);

Chess.Version         = "1.0";
Chess.Author         = "Despite";
Chess.Phase         = 1;

Chess:AddOption("HOJ", true, DBM_CE_OPTION_2);

Chess:RegisterEvents(
   "CHAT_MSG_MONSTER_YELL",
   "SPELL_AURA_APPLIED"
);

Chess:RegisterCombat("COMBAT");


Chess:AddBarOption("Enrage")

function Chess:OnCombatStart(delay)
   
   self:StartStatusBarTimer(480 - delay, "Enrage", "Interface\\Icons\\Spell_Shadow_UnholyFrenzy");
   self:ScheduleSelf(50 - delay, "EnrageWarn", 300);
   self:ScheduleSelf(100 - delay, "EnrageWarn", 120);
   self:ScheduleSelf(200 - delay, "EnrageWarn", 60);
   self:ScheduleSelf(300 - delay, "EnrageWarn", 30);
   self:ScheduleSelf(400 - delay, "EnrageWarn", 10);
end


function Chess:OnEvent(event, arg1)

   if event == "EnrageWarn" and type(arg1) == "number" then
      if arg1 >= 60 then
         self:Announce(string.format(DBM_CE_WARN_ENRAGE, (arg1/60), DBM_MIN), 1)
         else

   elseif event == "SPELL_AURA_APPLIED" then
      if arg1.spellId == 29522 then -- Wrong spell ID
         self:Announce(string.format(DBM_CE_WARN_HOJ, tostring(arg1.destName)), 2);
      end
   end
end


Added these lines to the localization.en.lua

Code:

--ChessEvent
DBM_CE_NAME            = "Chess";
DBM_CE_DEBUFF_HOJ   = "([^%s]+) (%w+) afflicted by Hammer of Justice.";
DBM_CE_WARN_HOJ   = "*** Hammer of Justice on >%s< ***";
DBM_CE_WARN_ENRAGE      = "*** Enrage in %s %s ***";