From 5b5d94218bf1bffc5dc4856b08a9953520d979ef Mon Sep 17 00:00:00 2001
From: praxis <889+praxis@noreply.octowow.st>
Date: Sun, 13 Sep 2026 09:52:51 +0000
Subject: [PATCH] Add modules/updatenotify.lua

---
 modules/updatenotify.lua | 55 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 modules/updatenotify.lua

diff --git a/modules/updatenotify.lua b/modules/updatenotify.lua
new file mode 100644
index 0000000..e901a38
--- /dev/null
+++ b/modules/updatenotify.lua
@@ -0,0 +1,55 @@
+pfUI:RegisterModule("updatenotify", "vanilla:tbc", function ()
+  local alreadyshown = false
+  local localversion  = tonumber(pfUI.version.major*10000 + pfUI.version.minor*100 + pfUI.version.fix)
+  local remoteversion = tonumber(pfUI_init.updateavailable) or 0
+  local loginchannels = { "BATTLEGROUND", "RAID", "GUILD" }
+  local groupchannels = { "BATTLEGROUND", "RAID" }
+
+  -- Determine branch from toc version string.
+  -- experiment toc has "9.x.x (experiment version)", master does not.
+  -- Only notify players on the same branch about updates.
+  local tocversion = GetAddOnMetadata(pfUI.name, "Version") or ""
+  local localbranch = strfind(tocversion, "experiment") and "exp" or "master"
+  local versionmsg  = "VERSION:" .. localversion .. ":" .. localbranch
+
+  pfUI.updater = CreateFrame("Frame")
+  pfUI.updater:RegisterEvent("CHAT_MSG_ADDON")
+  pfUI.updater:RegisterEvent("PLAYER_ENTERING_WORLD")
+  pfUI.updater:RegisterEvent("PARTY_MEMBERS_CHANGED")
+  pfUI.updater:SetScript("OnEvent", function()
+    if event == "CHAT_MSG_ADDON" and arg1 == "pfUI" then
+      local v, rv, branch = pfUI.api.strsplit(":", arg2)
+      local rv = tonumber(rv)
+      -- only process VERSION messages from the same branch
+      -- messages without a branch tag (old versions) are ignored
+      if v == "VERSION" and rv and branch == localbranch then
+        if rv > localversion then
+          pfUI_init.updateavailable = rv
+        end
+      end
+    end
+
+    if event == "PARTY_MEMBERS_CHANGED" then
+      local groupsize = GetNumRaidMembers() > 0 and GetNumRaidMembers() or GetNumPartyMembers() > 0 and GetNumPartyMembers() or 0
+      if ( this.group or 0 ) < groupsize then
+        for _, chan in pairs(groupchannels) do
+          SendAddonMessage("pfUI", versionmsg, chan)
+        end
+      end
+      this.group = groupsize
+    end
+
+    if event == "PLAYER_ENTERING_WORLD" then
+      if not alreadyshown and localversion < remoteversion then
+        DEFAULT_CHAT_FRAME:AddMessage(T["|cff33ffccpf|rUI: New version available! Have a look at http://shagu.org !"])
+        DEFAULT_CHAT_FRAME:AddMessage(T["|cffddddddIt's always safe to upgrade |cff33ffccpf|rUI. |cffddddddYou won't lose any of your configuration."])
+        pfUI_init.updateavailable = localversion
+        alreadyshown = true
+      end
+
+      for _, chan in pairs(loginchannels) do
+        SendAddonMessage("pfUI", versionmsg, chan)
+      end
+    end
+  end)
+end)