39 lines
1.1 KiB
Nix
39 lines
1.1 KiB
Nix
{ pkgs, ... }:
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let
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night-shutdown = pkgs.writeHaskellScript
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{
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name = "night-shutdown";
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imports = [
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"Data.Time.LocalTime"
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"Data.Time.Format"
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"Data.Time.Clock"
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"Control.Concurrent"
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"Data.Functor"
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];
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bins = [ pkgs.libnotify pkgs.systemd ];
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} ''
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interval = 5
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main = forever $ do
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time <- getZonedTime
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let tod = localTimeOfDay . zonedTimeToLocalTime$ time
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hour = todHour tod
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minute = todMin tod
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evening = hour == 0
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night = (hour < 6 && hour >= 1)
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action
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| evening = notify_send "Shutdown alert!" ([i|Rechner fährt in #{59-minute} Minuten runter.|]::String)
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| night = systemctl "poweroff"
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| otherwise = pass
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action
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threadDelay $ (interval - (minute `mod` interval)) * 60 * 1000000
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'';
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in
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{
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systemd.user.services.night-shutdown = {
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Unit.Description = "Night Shutdown";
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Service.ExecStart = "${night-shutdown}/bin/night-shutdown";
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Install.WantedBy = [ "graphical-session.target" ];
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};
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}
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