From 8d4478b87c558ab4284aacc2a2e9f0b47f322132 Mon Sep 17 00:00:00 2001
From: Kelsi <kelsihates2fa@gmail.com>
Date: Sun, 22 Mar 2026 18:19:51 -0700
Subject: [PATCH] feat: enhance spell tooltips with cost, range, cast time, and
 cooldown

SetSpellByID now shows comprehensive spell information:
- Mana/Rage/Energy/Runic Power cost
- Range in yards (or omitted for self-cast)
- Cast time ("1.5 sec cast" or "Instant")
- Active cooldown remaining in red

Uses existing GetSpellInfo (castTime, range from DBC), GetSpellPowerCost
(mana cost from DBC), and GetSpellCooldown (remaining CD) to populate
the tooltip with real spell data.
---
 src/addons/lua_engine.cpp | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/addons/lua_engine.cpp b/src/addons/lua_engine.cpp
index 3bb293ef..3ebae787 100644
--- a/src/addons/lua_engine.cpp
+++ b/src/addons/lua_engine.cpp
@@ -5408,10 +5408,32 @@ void LuaEngine::registerCoreAPI() {
         "function GameTooltip:SetSpellByID(spellId)\n"
         "    self:ClearLines()\n"
         "    if not spellId or spellId == 0 then return end\n"
-        "    local name, rank, icon = GetSpellInfo(spellId)\n"
+        "    local name, rank, icon, castTime, minRange, maxRange = GetSpellInfo(spellId)\n"
         "    if name then\n"
         "        self:SetText(name, 1, 1, 1)\n"
         "        if rank and rank ~= '' then self:AddLine(rank, 0.5, 0.5, 0.5) end\n"
+        "        -- Mana cost\n"
+        "        local cost, costType = GetSpellPowerCost(spellId)\n"
+        "        if cost and cost > 0 then\n"
+        "            local powerNames = {[0]='Mana',[1]='Rage',[2]='Focus',[3]='Energy',[6]='Runic Power'}\n"
+        "            self:AddLine(cost..' '..(powerNames[costType] or 'Mana'), 1, 1, 1)\n"
+        "        end\n"
+        "        -- Range\n"
+        "        if maxRange and maxRange > 0 then\n"
+        "            self:AddDoubleLine(string.format('%.0f yd range', maxRange), '', 1,1,1, 1,1,1)\n"
+        "        end\n"
+        "        -- Cast time\n"
+        "        if castTime and castTime > 0 then\n"
+        "            self:AddDoubleLine(string.format('%.1f sec cast', castTime / 1000), '', 1,1,1, 1,1,1)\n"
+        "        else\n"
+        "            self:AddDoubleLine('Instant', '', 1,1,1, 1,1,1)\n"
+        "        end\n"
+        "        -- Cooldown\n"
+        "        local start, dur = GetSpellCooldown(spellId)\n"
+        "        if dur and dur > 0 then\n"
+        "            local rem = start + dur - GetTime()\n"
+        "            if rem > 0.1 then self:AddLine(string.format('%.0f sec cooldown', rem), 1, 0, 0) end\n"
+        "        end\n"
         "        self.__spellId = spellId\n"
         "    end\n"
         "end\n"