43 lines
1.3 KiB
Nix
43 lines
1.3 KiB
Nix
{
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pkgs,
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config,
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...
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}: let
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modeFile = "${config.home.homeDirectory}/.mode";
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wallPapers = "${config.home.homeDirectory}/media/images/wallpapers";
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randomWallpaper = pkgs.writeHaskellScript
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{
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name = "random-wallpaper";
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imports = ["System.Random"];
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bins = [pkgs.coreutils pkgs.glib];
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} ''
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main = do
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mode <- cat "${modeFile}" |> captureTrim
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(lines . decodeUtf8 -> files) <- ls ([i|${wallPapers}/#{mode}|] :: String) |> captureTrim
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((files Unsafe.!!) -> file) <- getStdRandom $ randomR (0, length files - 1)
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(decodeUtf8 -> current) <- gsettings "get" "org.gnome.desktop.background" "picture-uri" |> captureTrim
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let new = [i|file:///${wallPapers}/#{mode}/#{file}|] :: String
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when (new /= current) $ do
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gsettings "set" "org.gnome.desktop.background" "picture-uri" new
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gsettings "set" "org.gnome.desktop.screensaver" "picture-uri" new
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'';
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in {
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home.packages = [randomWallpaper];
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systemd.user = {
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services.random-wallpaper = {
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Unit = {Description = "Random Wallpaper";};
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Service = {
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ExecStart = "${randomWallpaper}/bin/random-wallpaper";
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Type = "oneshot";
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};
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};
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timers.random-wallpaper = {
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Timer = {
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OnCalendar = "*:00/30:00";
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OnActiveSec = 1;
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};
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Install = {WantedBy = ["timers.target"];};
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};
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};
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}
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