feat: astro telegram bot sends live updates

configs/telegram-bots/astrology.nix

@@ -40,15 +40,16 @@ let
 in {
   niveum.telegramBots.transits = {
     enable = true;
-    time = "0:00";
+    time = "*:0/1";
     token = lib.strings.fileContents <system-secrets/telegram/kmein.token>;
     chatIds = [ "-1001796440545" ];
     command = toString (pkgs.writers.writeDash "common-transits" ''
+      now=$(${pkgs.coreutils}/bin/date +%_H:%M | ${pkgs.gnused}/bin/sed 's/^\s*//')
+      date=$(${pkgs.coreutils}/bin/date +'%m %d %Y')
       {
-        date=$(${pkgs.coreutils}/bin/date +'%m %d %Y')
         ${nixpkgs-unstable.astrolog}/bin/astrolog -qd $date -zN Berlin -Yt -Yd -d -R Uranus Neptune Pluto
         ${nixpkgs-unstable.astrolog}/bin/astrolog -Yt -Yd -q 10 22 1999 6:32 -zN Kassel -td $date -R Uranus Neptune Pluto
-      } | ${toSymbols} | ${pkgs.coreutils}/bin/sort -n
+      } | ${toSymbols} | ${pkgs.coreutils}/bin/sort -n | ${pkgs.gnugrep}/bin/grep "^$now" || :
     '');
   };
 }

modules/telegram-bot.nix

@@ -9,7 +9,7 @@ let
       startAt = bot.time;
       serviceConfig.Type = "oneshot";
       wants = [ "network-online.target" ];
-      script = strings.concatStringsSep "\n" ([ "QUOTE=$(${bot.command})" ]
+      script = strings.concatStringsSep "\n" ([ "QUOTE=$(${bot.command})" "if [ -n \"$QUOTE\" ]; then" ]
         ++ map (chatId: ''
           ${pkgs.curl}/bin/curl -s -X POST "https://api.telegram.org/bot${bot.token}/sendMessage" \
             -d chat_id="${chatId}" \
@@ -17,7 +17,8 @@ let
               lib.strings.optionalString (bot.parseMode != null)
               "-d parse_mode=${bot.parseMode}"
             }
-        '') bot.chatIds);
+        '') bot.chatIds
+        ++ [ "fi" ]);
     };
 in {
   options.niveum.telegramBots = mkOption {
@@ -27,7 +28,7 @@ in {
         time = mkOption { type = types.str; };
         token = mkOption { type = types.strMatching "[0-9A-Za-z:-]+"; };
         chatIds = mkOption {
-          type = types.listOf (types.strMatching "[0-9]+|@[A-Za-z0-9]+");
+          type = types.listOf (types.strMatching "-?[0-9]+|@[A-Za-z0-9]+");
         };
         command = mkOption { type = types.str; };
         parseMode = mkOption {