{ config, lib, pkgs, ... }:

with lib;
let
  siteOpts = { site, ... }: {
    options = {
      site = mkOption {
        type = types.str;
        description = "Site name.";
        default = site;
      };

      network = mkOption {
        type = types.str;
        description = "Network to be treated as local.";
      };

      dynamic-network = mkOption {
        type = with types; nullOr str;
        description = "Network to be allocated by DHCP.";
        default = null;
      };

      gateway-v4 = mkOption {
        type = with types; nullOr str;
        description = "Gateway to use for public ipv4 internet access.";
        default = null;
      };

      gateway-v6 = mkOption {
        type = with types; nullOr str;
        description = "Gateway to use for public ipv6 internet access.";
        default = null;
      };

      gateway-host = mkOption {
        type = with types; nullOr str;
        description = "Identity of the host to act as a gateway.";
        default = null;
      };

      local-groups = mkOption {
        type = with types; listOf str;
        description = "List of groups which should exist at this site.";
        default = [ ];
      };

      local-users = mkOption {
        type = with types; listOf str;
        description =
          "List of users which should exist on all hosts at this site.";
        default = [ ];
      };

      local-admins = mkOption {
        type = with types; listOf str;
        description =
          "List of admin users which should exist on all hosts at this site.";
        default = [ ];
      };

      enable-monitoring =
        mkEnableOption "Enable site-wide monitoring with prometheus.";

      nameservers = mkOption {
        type = with types; listOf str;
        description = "List of nameservers to be used by hosts at this site.";
        default = [ ];
      };

      timezone = mkOption {
        type = types.str;
        description = "Timezone of the site.";
        example = "America/Winnipeg";
      };
    };
  };

in {
  options.fudo.sites = mkOption {
    type = with types; attrsOf (submodule siteOpts);
    description = "Site configurations for all sites known to the system.";
    default = { };
  };
}