{
  lib,
}:

let
  tempReadingOptions = {
    options = {
      label = lib.mkOption {
        type = lib.types.nullOr lib.types.str;
        default = null;
        description = "Friendly label of the reading.";
      };
      enabled = lib.mkOption {
        type = lib.types.bool;
        default = true;
        description = "Whether this reading is enabled.";
      };
      warningTemp = lib.mkOption {
        type = lib.types.nullOr lib.types.numbers.positive;
        default = null;
        description = "Warning temperature threshold.";
      };
      criticalTemp = lib.mkOption {
        type = lib.types.nullOr lib.types.numbers.positive;
        default = null;
        description = "Critical temperature threshold.";
      };
    };
  };
in
{
  options = {
    name = lib.mkOption {
      type = lib.types.nullOr lib.types.str;
      default = null;
      description = "Friendly name of the sensor.";
    };
    enabled = lib.mkOption {
      type = lib.types.bool;
      default = true;
      description = "Whether sensor is enabled.";
    };
    readings = lib.mkOption {
      type = lib.types.attrsOf (lib.types.submodule tempReadingOptions);
      default = { };
      description = "Overrides for specific readings of the sensor, by label.";
    };
  };
}