Fix catalyst info missing on some previous season items, since blizzard removed upgrade track information for them (instead of greying it out) - fixes for seasons before TWW S2 will come later

Author: Numynum

TransmogUpgradeMaster.lua

@@ -384,14 +384,16 @@ function TUM:IsAppearanceMissing(itemLink, classID, debugLines)
     end
 
     local currentTier = 0;
-    if upgradeInfo then
+    if upgradeInfo and upgradeInfo.currentLevel > 0 then
         currentTier = self.data.constants.trackStringIDToTiers[upgradeInfo.trackStringID] or 0
         if currentTier and upgradeInfo.currentLevel >= 5 and currentTier < 4 then
             currentTier = currentTier + 1
         end
         if canUpgrade and upgradeInfo.currentLevel < 5 and currentTier < 4 then
             result.canUpgrade = true
         end
+    else
+        currentTier = self:GetTierFromItemLevel(itemLink, seasonID) or 0
     end
     local _, sourceID = C_TransmogCollection.GetItemInfo(itemLink)
     tryInsert(debugLines, 'sourceID: ' .. tostring(sourceID))
@@ -633,6 +635,33 @@ function TUM:GetSourceIDsForItemID(itemID)
     return self.data.itemSourceIDs[itemID] or self.itemSourceIDs[itemID]
 end
 
+--- @param itemLink string
+--- @param seasonID TUM_Season
+--- @return TUM_Tier? tier # nil if the tier cannot be determined from ilvl
+function TUM:GetTierFromItemLevel(itemLink, seasonID)
+    local seasonInfo = self.data.upgradeItemLevels[seasonID]
+    local tooltipData = C_TooltipInfo.GetHyperlink(itemLink)
+    if not tooltipData or not seasonInfo then return nil end
+
+    local itemLevel
+    for _, line in ipairs(tooltipData.lines) do
+        if line.type == Enum.TooltipDataLineType.ItemLevel then
+            itemLevel = line.itemLevel;
+            break;
+        end
+    end
+    if not itemLevel then return nil; end
+
+    local foundTier = nil
+    for tier, minItemLevel in ipairs(seasonInfo) do
+        if itemLevel >= minItemLevel then
+            foundTier = tier;
+        end
+    end
+
+    return foundTier;
+end
+
 --- @param itemLink string
 --- @param classID number # defaults to the player's class
 --- @return boolean

data.lua

@@ -141,6 +141,22 @@ data.currency = {
     [TWW_S3] = 3269,
 };
 
+--- @type table<TUM_Season, table<TUM_Tier, number>> # [seasonID][tier] = minimum item level
+data.upgradeItemLevels = {
+    [TWW_S2] = {
+        [TIER_LFR] = 623,
+        [TIER_NORMAL] = 636,
+        [TIER_HEROIC] = 649,
+        [TIER_MYTHIC] = 662,
+    },
+    [TWW_S3] = {
+        [TIER_LFR] = 668,
+        [TIER_NORMAL] = 681,
+        [TIER_HEROIC] = 694,
+        [TIER_MYTHIC] = 707,
+    },
+};
+
 --- could potentially be extracted from C_TransmogSets.GetAllSets() more or less, but meh, effort, and requires linking to a specific season still anyway
 --- @type table<TUM_Season, table<number, {[1]:number, [2]:number, [3]:number, [4]:number}>> [m+ seasonID][classID] = { [1] = lfrSetID, [2] = normalSetID, [3] = heroicSetID, [4] = mythicSetID }
 data.sets = {