Custom emails watcher

hmModules/email/default.nix

@@ -1,6 +1,8 @@
 {
   pkgs,
   secrets,
+  fleetFlake,
+  lib,
   ...
 }:
 {
@@ -175,9 +177,6 @@
       compose = {
         no-attachment-warning = "^[^>]*attach(ed|ment)";
       };
-      triggers = {
-        email-received = ''exec notify-send "New email from %n" "%s"'';
-      };
       filters = {
         "text/plain" = "colorize";
         "text/html" = "html";
@@ -188,6 +187,18 @@
       };
     };
   };
+
+  systemd.user.services.emails-watcher = {
+    Unit.Description = "Send notifications when new emails arrive";
+    Install = {
+      WantedBy = [ "default.target" ];
+    };
+    Service = {
+      ExecStart = "${lib.getExe fleetFlake.packages.${pkgs.system}.emails-watcher}";
+      Environment = [ "INBOX_NEW=~/Maildir/autistici/Inbox/new" ];
+    };
+  };
+
   accounts.email = {
     accounts.autistici = {
       aerc.enable = true;

packages/emails-watcher/default.nix

@@ -0,0 +1,12 @@
+{
+  writers,
+  python3Packages,
+  ...
+}:
+writers.writePython3Bin "emails-watcher" {
+  libraries = with python3Packages; [
+    watchdog
+    desktop-notifier
+  ];
+  flakeIgnore = [ ];
+} (builtins.readFile ./emails-watcher.py)

packages/emails-watcher/emails-watcher.py

@@ -0,0 +1,43 @@
+import os
+from watchdog.observers import Observer
+from watchdog.events import FileSystemEventHandler
+from email import message_from_file
+from desktop_notifier import DesktopNotifierSync, DEFAULT_SOUND, Icon
+
+
+class MaildirHandler(FileSystemEventHandler):
+    def __init__(self, notifier):
+        super().__init__()
+        self.notifier = notifier
+
+    def on_created(self, event):
+        if not event.is_directory:
+            print(f"New email found: {event.src_path}")
+            with open(event.src_path, 'r') as email_file:
+                msg = message_from_file(email_file)
+                print(f'{msg["From"]}: {msg["Subject"]}')
+                self.notifier.send(
+                  title=msg["From"],
+                  message=msg["Subject"],
+                  sound=DEFAULT_SOUND,
+                  icon=Icon(name="mail-message-new"),
+                  timeout=20
+                )
+
+
+if __name__ == "__main__":
+    maildir_new = os.path.expanduser(os.environ.get("INBOX_NEW"))
+    notifier = DesktopNotifierSync(
+        app_name="Mails",
+        notification_limit=10
+    )
+
+    event_handler = MaildirHandler(notifier)
+    observer = Observer()
+
+    observer.schedule(event_handler, maildir_new, recursive=False)
+
+    print(f"Monitoring {maildir_new} for new emails...")
+
+    observer.start()
+    observer.join()