Refactor email setup + add email sender to notification

1 files changed, 70 insertions, 0 deletions

diff --git a/modules/email.home/mailbox-sync.module.nix b/modules/email.home/mailbox-sync.module.nix
new file mode 100644
index 0000000..bb7ee9d
--- /dev/null
+++ b/modules/email.home/mailbox-sync.module.nix
@@ -0,0 +1,70 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  cfg = config.services.mailbox-sync;
+
+  notmuch = "${pkgs.notmuch}/bin/notmuch";
+  gmi = "${pkgs.lieer}/bin/gmi";
+  notify-send = "${pkgs.libnotify}/bin/notify-send";
+  jq = "${pkgs.jq}/bin/jq";
+
+  notify-script = ''
+    emails=$(${notmuch} search --format=json '${cfg.notify.filter}' \
+      | ${jq} -r '.[0:5] | map("— " + .subject + "\n" + .authors + "\n(tag: " + (.tags | join(" ")) + ")") | join("\n\n")');
+
+    # Notify
+    ${notify-send} --app-name=notmuch "Read your mail dumbass ($new_mail_count)" "\n$emails";
+  '';
+
+  sync-script = ''
+    #!${pkgs.bash}/bin/bash
+    set -eu -o pipefail;
+
+    ${gmi} sync;
+
+    new_mail_count=$(${notmuch} count '${cfg.notify.filter}');
+    if [ $new_mail_count = 0 ]; then
+      echo "No new mail";
+    else
+      ${if cfg.notify.enable then notify-script else ""}
+    fi
+
+    ${notmuch} tag -new -- tag:new;
+  '';
+
+  service-unit = {
+    Unit.ConditionPathExists = "${cfg.maildir}/.gmailieer.json";
+    Service = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.writeScript "mailbox-sync-script" sync-script}";
+      WorkingDirectory = cfg.maildir;
+      Environment = "NOTMUCH_CONFIG=${config.xdg.configHome}/notmuch/default/config";
+    };
+  };
+
+  timer-unit = {
+    Timer = {
+      OnCalendar = cfg.sync.frequency;
+      RandomizedDelaySec = 30;
+    };
+    Install.WantedBy = [ "timers.target" ];
+  };
+in {
+  options.services.mailbox-sync = {
+    enable = mkEnableOption "mailbox sync";
+    name = mkOption { type = types.str; default = "default"; };
+    maildir = mkOption { type = types.str; };
+    sync.frequency = mkOption { type = types.str; default = "*:0/5"; };
+    notify.enable = mkEnableOption "notify on new mail";
+    notify.filter = mkOption {
+      type = types.str;
+      default = "tag:inbox and tag:unread and tag:new";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    programs.lieer.enable = true;
+    systemd.user.services."mailbox-sync-${cfg.name}" = service-unit;
+    systemd.user.timers."mailbox-sync-${cfg.name}" = timer-unit;
+  };
+}