{ config, lib, ... }:
let
  cfg = config.os.srv.backup;
in
{
  options.os.srv.backup.enable = lib.mkEnableOption "enables backups";
  config = lib.mkIf cfg.enable {
    services.sanoid = {
      enable = true;
      templates.production = {
        hourly = 36;
        daily = 30;
        monthly = 3;
      };
      datasets."zroot/rpool/appdata/databases".useTemplate = [ "production" ];
      datasets."ztank/vault".useTemplates = [ "production" ];
    };
    services.syncoid = {
      enable = true;
      commands = {
        "sync-db" = {
          source = "zroot/rpool/appdata/databases";
          target = "ztank/backups/nvme/databases";
          sendOptions = "w";
        };
        "sync-configs" = {
          source = "zroot/rpool/appdata/configs";
          target = "ztank/backups/nvme/configs";
          sendOptions = "w";
        };
      };
    };
  };
}