Something

StanceLink = {}

StanceLink.Const = {

   ChatCmd       = {"/stancelink", "/slnk"},

   ChatOpt       = {
      {
         option  = "set",
         desc    = "links your currently equipped arms to your stance, so that whenever you enter that stance, you regain those arms.",
         method  = "Add"
      },
      {
         option  = "clear",
         desc    = "removes any link you might have with your current stance, so no arms will be equipped in future on changing to it.",
         method  = "Clear"
      },
      {
         option  = "list",
         desc    = "details whatever links you have setup between stances and arms.",
         method  = "List"
      }
   },

   Title   = "StanceLink",
   Version = "r1a0",
   Desc    = "Automatically equip weapons on warrior stance changes.",

   Chat            = {
      SetArmLink   = "%s (main-hand) and %s (secondary-hand) will now be equipped when you enter %s.",
      ClearArmLink = "The link for your %s has been cleared."
   },
   
   Stance = {
      Ba  = "Battle Stance",
      Bk  = "Berserker Stance",
      De  = "Defensive Stance"
   }
}

local const      = StanceLink.Const

StanceLink.Defaults = {
  [const.Stance.Ba] = {},
  [const.Stance.Bk] = {},
  [const.Stance.De] = {}
}

StanceLink.Obj   = AceAddon:new{
   name          = const.Title,
   version       = const.Version,
   description   = const.Desc,
   author        = "Rowne",
   aceCompatible = "100",
   category      = ACE_CATEGORY_INTERFACE,
   db            = AceDbClass:new("StanceLinkDB"),
   defaults      = StanceLink.Defaults,
   cmd           = AceChatCmdClass:new(const.ChatCmd,
                                       const.ChatOpt),

   Enable = function(self)
      self:RegisterEvent("PLAYER_AURAS_CHANGED", "ArmsSwap")
   end,

   Set = function(self, i, s)
      local db = self:DetermineStance()
      if not db then return end
      local h1 = GetInventoryItemName(CharacterMainHandSlot:GetID()) 
      local h2 = GetInventoryItemName(CharacterSecondaryHandSlot:GetID())
      self:Msg(const.Chat.SetArmLink, h1, h2, db)
      db                    = self:Get(db)
      db["Main-hand:"]      = h1
      db["Secondary-hand:"] = h2
   end,

   Clear = function(self, i)
      local db = self:DetermineStance()
      if not db then return end
      self:Msg(const.Chat.ClearArmLink, db)
      db = self:Get(db) db = {}
   end,

   List = function(self)
      local doList = function(type)
         local tmpDB = {}
         for k, v in self:Get(type) do
            tinsert(tmpDB, {text = k, val = v})
         end
         self.cmd:report(type.."...", tmpDB)
      end
      doList(const.Stance.Ba)
      doList(const.Stance.Bk)
      doList(const.Stance.De)
   end,
   
   DetermineStance = function(self)
      local b
      b = b or self:Buffs(const.Stance.Ba, true)
      b = b or self:Buffs(const.Stance.Bk, true)
      b = b or self:Buffs(const.Stance.De, true)
      return b
   end,
   
   ArmsSwap = function(self)
      local db = self:DetermineStance()
      if not db then return end
      db       = self:Get(db)
      local h1 = db["Main-hand:"]
      local h2 = db["Secondary-hand:"]
      h1       = self:FindItemByName(h1)
      h2       = self:FindItemByName(h2)
      PickupContainerItem(h1.x, h1.y)
      EquipCursorItem(16)
      PickupContainerItem(h2.x, h2.y)
      EquipCursorItem(17)
   end
}

StanceLink.Obj:RegisterForLoad()

ace:RegisterFunctions(StanceLink.Obj, {
  version  = 1.0,

   Msg   = function(self, ...)
      self.cmd:msg(unpack(arg))
   end,

   Get   = function(self, var)
      return self.db:get(self.profilePath, var)
   end,

   Buffs = function(b, n)
      local t = CreateFrame("GameTooltip",
                            "TempBuffTip",
                            UIParent,
                            "GameTooltipTemplate")
      t:SetOwner(TempBuffTip, "ANCHOR_NONE")
      local eC = FALSE
      t:ClearLines()
      for k, v in b do
         if eC then break end
         for j = 1, 10 do
            if not UnitBuff("player", j) and
            not UnitDebuff("player", j) then
               break
            end
            if UnitBuff("player", j) then
               t:SetUnitBuff("player", j)
               local m = TempBuffTipTextLeft1:GetText()
               if strfind(m, v) then
                  eC = n and b or TRUE break
               end
            end
            if UnitDebuff("player", j) then
               t:SetUnitDebuff("player", j)
               local m = TempBuffTipTextLeft1:GetText()
               if strfind(m, v) then
                  eC = n and b or TRUE break
               end
            end
         end
      end
      return eC
   end,

   FindItemByName = function(n)
      for x = 0,NUM_BAG_FRAMES do
         for y = 1, GetContainerNumSlots(x) do
            if strfind(GetContainerItemLink(x, y) or "", n) then
               return {x = x, y = y}
            end
         end
      end
   end
})