[src\filters\Expansion] First Iteration

Add filter based on what expansion the item comes from.

Baggins.toc

@@ -97,6 +97,7 @@ src\filters\Empty.lua
 src\filters\EquipLocation.lua
 src\filters\EquipmentSet.lua
 src\filters\EquipmentSlot.lua
+src\filters\Expansion.lua
 src\filters\ItemBind.lua
 src\filters\ItemID.lua
 src\filters\ItemLevel.lua

src/filters/Expansion.lua

@@ -0,0 +1,69 @@
+--[[ ==========================================================================
+
+Expansion.lua
+
+========================================================================== ]]--
+
+local AddOnName, _ = ...
+local AddOn = _G[AddOnName]
+
+-- Libs
+--local LibStub = _G.LibStub
+--local L = LibStub("AceLocale-3.0"):GetLocale(AddOnName)
+
+local GetContainerItemLink = _G.C_Container and _G.C_Container.GetContainerItemLink or _G.GetContainerItemLink
+local GetItemInfo = _G.C_Item and _G.C_Item.GetItemInfo or _G.GetItemInfo
+
+local itemExpansion = {
+    [0] = "Classic",
+    [1] = "The Burning Crusade",
+    [2] = "Wrath of the Lich King",
+    [3] = "Cataclysm",
+    [4] = "Mists of Pandaria",
+    [5] = "Warlords of Draenor",
+    [6] = "Legion",
+    [7] = "Battle for Azeroth",
+    [8] = "Shadowlands",
+    [9] = "Dragonflight",
+}
+
+
+local function Matches(bag, slot, rule)
+    local status = rule.status
+    if not status then return end
+    local itemLink = GetContainerItemLink(bag, slot)
+    local expansionID = itemLink and select(15,GetItemInfo(itemLink))
+    return status == itemExpansion[expansionID]
+end
+
+-- Clean rule
+local function CleanRule(rule)
+
+    rule.bagid=0
+
+end
+
+AddOn:AddCustomRule("Expansion", {
+    DisplayName = "Expansion",
+    Description = "Matches all items originating from chosen expansion.",
+    Matches = Matches,
+    Ace3Options = {
+        status = {
+            name = "Expansion",
+            desc = "",
+            type = 'select',
+            values = {
+                ["Classic"] = "Classic",
+                ["The Burning Crusade"] = "The Burning Crusade",
+                ["Wrath of the Lich King"] = "Wrath of the Lich King",
+                ["Cataclysm"] = "Cataclysm",
+                ["Mists of Pandaria"] = "Mists of Pandaria",
+                ["Warlords of Draenor"] = "Warlords of Draenor",
+                ["Legion"] = "Legion",
+                ["Battle for Azeroth"] = "Battle for Azeroth",
+                ["Shadowlands"] = "Shadowlands",
+                ["Dragonflight"] = "Dragonflight",
+            }
+        },
+    },
+})