From 0a3a1746cb1f9e364ce01a604d8ab6269ba58606 Mon Sep 17 00:00:00 2001
From: Aner Zakobar <aner@zakobar.com>
Date: Thu, 8 Oct 2026 13:21:32 +0300
Subject: [PATCH] New mail notifications

---
 azos-core                 |  2 +-
 features/mail/default.nix | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/azos-core b/azos-core
index 45f3e20..51e8d56 160000
--- a/azos-core
+++ b/azos-core
@@ -1 +1 @@
-Subproject commit 45f3e2052268c19f9d1bb3ee9a195c77628d449a
+Subproject commit 51e8d56f0cdd676c25c5b9ccb04654ac80da021f
diff --git a/features/mail/default.nix b/features/mail/default.nix
index 60068f6..5c26c75 100644
--- a/features/mail/default.nix
+++ b/features/mail/default.nix
@@ -31,9 +31,26 @@
     # only queries the card reader (no pinentry involved either way), so it's
     # safe to use as a silent presence check: skip the sync entirely when the
     # card isn't there, instead of letting mbsync hit that prompt.
+    #
+    # New mail is detected by counting files under every account's Maildir
+    # "new" subdirectory before and after the sync -- that's where messages
+    # the server hasn't marked seen land, across all three accounts at once,
+    # with no need to touch mu's index. A rise in that count means mail
+    # actually arrived, so only then does it post a desktop notification via
+    # notify-send -- intentionally separate from mu4e's own "mbsync -a" (its
+    # mu4e-get-mail-command), which doesn't go through this script at all.
     mbsyncSafe = pkgs.writeShellScript "mbsync-safe" ''
-      if ${pkgs.gnupg}/bin/gpg --card-status >/dev/null 2>&1; then
-        exec ${pkgs.isync}/bin/mbsync -a
+      if ! ${pkgs.gnupg}/bin/gpg --card-status >/dev/null 2>&1; then
+        exit 0
+      fi
+      before=$(find "$HOME/Maildir" -path '*/new/*' -type f 2>/dev/null | wc -l)
+      ${pkgs.isync}/bin/mbsync -a
+      after=$(find "$HOME/Maildir" -path '*/new/*' -type f 2>/dev/null | wc -l)
+      new=$((after - before))
+      if [ "$new" -gt 0 ]; then
+        label="new message"
+        [ "$new" -ne 1 ] && label="new messages"
+        ${pkgs.libnotify}/bin/notify-send "Mail" "$new $label"
       fi
     '';
   in {