{ config, lib, ... }:

{
  config = lib.mkIf (config.thisMachine.hasRole."binary-cache") {
    services.atticd = {
      enable = true;
      environmentFile = config.age.secrets.atticd-credentials.path;
      settings = {
        listen = "[::]:28338";

        chunking = {
          nar-size-threshold = 64 * 1024; # 64 KiB

          # The preferred minimum size of a chunk, in bytes
          min-size = 16 * 1024; # 16 KiB

          # The preferred average size of a chunk, in bytes
          avg-size = 64 * 1024; # 64 KiB

          # The preferred maximum size of a chunk, in bytes
          max-size = 256 * 1024; # 256 KiB
        };

        compression.type = "zstd";
        garbage-collection.default-retention-period = "6 months";
      };
    };

    age.secrets.atticd-credentials.file = ../../secrets/atticd-credentials.age;
  };
}