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home/scripts/brightness.nix

@@ -0,0 +1,42 @@
+{ pkgs, config, ... }:
+
+let
+  homedir = config.home.homeDirectory;
+  increments = "5";
+
+  brightness-change = pkgs.writeShellScriptBin "brightness-change" ''
+    sleep 0.05
+
+    [[ $1 == "up" ]] && ${pkgs.brightnessctl}/bin/brightnessctl set ${increments}%+
+    [[ $1 == "down" ]] && ${pkgs.brightnessctl}/bin/brightnessctl set ${increments}%-
+
+    brightness_level=$(${pkgs.brightnessctl}/bin/brightnessctl get)
+
+    message="                                               Brightness: $brightness_level%"
+
+    ID=$(cat /tmp/brightness-notification 2>/dev/null)
+    [[ $ID -eq "" ]] && ID=0
+
+    ${pkgs.libnotify}/bin/notify-send "$message" \
+                --replace-id="$ID" \
+                --print-id \
+                -t 2000 \
+                -h int:value:"$brightness_level" \
+                -h string:synchronous:brightness-change > /tmp/brightness-notification
+  '';
+
+  brightness-up = pkgs.writeShellScriptBin "brightness-up" ''
+    brightness-change up ${increments}
+  '';
+
+  brightness-down = pkgs.writeShellScriptBin "brightness-down" ''
+    brightness-change down ${increments}
+  '';
+
+in {
+  home.packages = with pkgs; [
+    brightness-change
+    brightness-up
+    brightness-down
+  ];
+}