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

let
  cfg = config.modules.system.vpn-confinement;
in
{
  options.modules.system.vpn-confinement = {
    enable = lib.mkEnableOption "enables vpn-confinement";
  
    # toggle for mullvad mexico w/ openvpn
    vpncon_mex = lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "enable pia vpn to mexico using openvpn";
    };
  };

  config = lib.mkIf cfg.enable {
    
    # Define VPN network namespace
    vpnNamespaces.wgmex = {
      enable = true;
      wireguardConfigFile = config.sops.secrets."vpncon_mex_config".path;
      accessibleFrom = [
        "10.0.0.0/8"
      ];
      portMappings = [
        { from = 7103; to = 7103; }
      ];
      openVPNPorts = [{
        port = 60729;
        protocol = "both";
      }];
    };

    # secrets only if VPN is enabled
    sops.secrets = {
      "vpncon_mex_config" = { owner = "root"; group = "root"; };
    };
 };
}