m 2 main-laptop: add power-action

makefu/2configs/main-laptop.nix

@@ -16,6 +16,44 @@ with config.krebs.lib;
 
   users.users.${config.krebs.build.user.name}.extraGroups = [ "dialout" ];
 
+  krebs.power-action = let
+    speak = "${pkgs.espeak}/bin/espeak";
+    whisper = text: ''${pkgs.espeak}/bin/espeak -v +whisper -s 110 "${text}"'';
+    note = "${pkgs.libnotify}/bin/notify-send";
+  in {
+    enable = true;
+    plans.low-battery = {
+      upperLimit = 25;
+      lowerLimit = 15;
+      charging = false;
+      action = whisper "power level low, please plug me in";
+    };
+    plans.nag-harder = {
+      upperLimit = 15;
+      lowerLimit = 5;
+      action = pkgs.writeDash "crit-speak" ''
+        ${whisper "Power level critical, do something"}
+        ${note} Battery -u critical -t 600000 "Power level critical, do something!"
+      '';
+    };
+    plans.last-chance = {
+      upperLimit = 5;
+      lowerLimit = 3;
+      charging = false;
+      action = pkgs.writeDash "suspend-wrapper" ''
+        ${note} Battery -u crit "You've had your chance, suspend in 5 seconds"
+        ${concatMapStringsSep "\n" (i: ''
+            ${note} -u critical -t 1000 ${toString i}
+            ${speak} ${toString i} &
+            sleep 1
+          '')
+          [ 5 4 3 2 1 ]}
+        /var/setuid-wrappers/sudo ${pkgs.systemd}/bin/systemctl suspend
+      '';
+    };
+  };
+  users.users.power-action.extraGroups = [ "audio" ];
+  security.sudo.extraConfig = "${config.krebs.power-action.user.name} ALL= (root) NOPASSWD: ${pkgs.systemd}/bin/systemctl suspend";
 
   services.redshift = {
     enable = true;