{ config, options, pkgs, lib, ... }:
with lib;
with lib.custom;
let
    cfg = config.modules.services.transmission;
in {
    options.modules.services.transmission = {
        enable = mkBoolOpt false;
    };

    config = mkIf cfg.enable {
        services.transmission = {
            enable = true;
            home = "${config.user.home}/torrents";
            settings = {
                incomplete-dir-enabled = true;
                rpc-whitelist = "127.0.0.1,192.168.*.*";
                rpc-host-whitelist = "*";
                rpc-host-whitelist-enabled = true;
                ratio-limit = 0;
                ratio-limit-enabled = true;
            };
        };

        networking.firewall = {
            allowedTCPPorts = [ 51413 ];
            allowedUDPPorts = [ 51413 ];
        };

        user.extraGroups = [ "transmission" ];
    };
}