infrastructure/modules/nixos/tf-glue/default.nix

{ tf, target, config, lib, ... }:
with lib;
let
  cfg = config.deploy.tf;
  unmergedValues = types.mkOptionType {
    name = "unmergedValues";
    merge = loc: defs: map (def: def.value) defs;
  };
in {
  options.deploy.tf = mkOption {
    type = types.submodule {
      freeformType = types.attrsOf unmergedValues;

      options = {
        attrs = mkOption {
          type = types.listOf types.str;
          default = [ ];
        };
        out.set = mkOption { type = types.unspecified; };
      };
    };
  };

  config = {
    deploy.tf = {
      attrs = [ "out" "attrs" ];
      out.set = removeAttrs cfg cfg.attrs;
    };
    _module.args.tf = target.${config.deploy.target};
  };
}