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|
{ config, lib, pkgs, ... }:
with config.krebs.lib;
let
cfg = config.lass.power-action;
out = {
options.lass.power-action = api;
config = lib.mkIf cfg.enable imp;
};
api = {
enable = mkEnableOption "power-action";
user = mkOption {
type = types.user;
default = {
name = "power-action";
};
};
startAt = mkOption {
type = types.str;
default = "*:0/1";
};
plans = mkOption {
type = with types; attrsOf (submodule {
options = {
upperLimit = mkOption {
type = int;
};
lowerLimit = mkOption {
type = int;
};
action = mkOption {
type = path;
};
};
});
};
};
imp = {
systemd.services.power-action = {
serviceConfig = rec {
ExecStart = startScript;
User = cfg.user.name;
};
startAt = cfg.startAt;
};
users.users.${cfg.user.name} = {
inherit (cfg.user) name uid;
};
};
startScript = pkgs.writeDash "power-action" ''
power="$(${powerlvl})"
${concatStringsSep "\n" (mapAttrsToList writeRule cfg.plans)}
'';
writeRule = _: plan:
"if [ $power -ge ${toString plan.lowerLimit} ] && [ $power -le ${toString plan.upperLimit} ]; then ${plan.action}; fi";
powerlvl = pkgs.writeDash "powerlvl" ''
cat /sys/class/power_supply/BAT0/capacity
'';
in out
|
