modules: restructure modules directory

modules/functionality/minecraft-servers/default.nix

@@ -0,0 +1,57 @@
+{ config, lib, pkgs, ... }@main:
+
+with lib;
+
+let
+  cfg = config.services.minecraft-servers;
+
+
+in
+{
+  options = (import ./options.nix) main;
+
+  config = mkIf cfg.enable {
+    users.users.minecraft = {
+      description = "Minecraft server service user";
+      home = cfg.dataDir;
+      createHome = true;
+      isSystemUser = true;
+      group = "minecraft";
+    };
+
+    users.groups.minecraft = { };
+
+    # systemd.services = mkIf (cfg.enable && cfg.servers != { }) ((import ./service.nix) main cfg);
+
+  };
+
+  # networking.firewall = let
+
+  #   propertyFunc = attrsets.mapAttrsToList (name: value:
+  #     let props = value.serverProperties;
+  #     in (if value.declarative then [
+  #       (props.server-port or 25565)
+  #       (if props.enable-rcon or false then
+  #         props."rcon.port" or 25575
+  #       else
+  #         null)
+  #       (if props.enable-query or false then
+  #         props "query.port" or 25565
+  #       else
+  #         null)
+  #     ] else
+  #       null)) cfg.servers;
+
+  #   openedPorts = lists.flatten [ serverPorts queryPorts rconPorts ];
+  # in {
+  #   allowedUDPPorts = openedPorts;
+  #   allowedTCPPorts = openedPorts;
+  # };
+
+  # assertions = [{
+  #   assertion = all (i: i.eula == true) (attrValues cfg.servers);
+  #   message = "You must agree to Mojangs EULA to run minecraft-server."
+  #     + " Read https://account.mojang.com/documents/minecraft_eula and"
+  #     + " set `services.minecraft-servers.servers.<name>.eula` to `true` for all servers if you agree.";
+  # }];
+}