os/core/power.nix


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{
  config,
  lib,
  ...
}:
let
  cfg = config.os.core.power;
in
{
  options.os.core.power = {
    enable = lib.mkEnableOption "enables power management";
    mode = lib.mkOption {
      type = lib.types.enum [
        "amd"
        "intel"
        "none"
      ];
      default = "none";
    };
  };

  config = lib.mkIf cfg.enable (
    lib.mkMerge [
      {
        programs.light.enable = true;
        powerManagement.powertop.enable = true;
        boot.kernelParams = [ "nvme_core.default_ps_max_latency_us=0" ];
      }

      (lib.mkIf (cfg.mode == "amd") {
        services.power-profiles-daemon.enable = true;
        boot.kernelParams = [ "amd_pstate=active" ];
      })

      (lib.mkIf (cfg.mode == "intel") {
        services = {
          power-profiles-daemon.enable = false;

          thermald.enable = true;
          tlp = {
            enable = true;
            settings = {
              START_CHARGE_THRESH_BAT0 = 75;
              STOP_CHARGE_THRESH_BAT0 = 80;
              START_CHARGE_THRESH_BAT1 = 75;
              STOP_CHARGE_THRESH_BAT1 = 80;
              CPU_SCALING_GOVERNOR_ON_AC = "performance";
              CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
            };
          };
        };
      })
    ]
  );
}