# AUTOMATICALLY GENERATED by clan
# TODO: move this code to a flakeModule in clan-core and import it via flake input
{ self, lib, inputs, ... }:
let
  evalConfig = import (self.inputs.nixpkgs + /lib/eval-config.nix);

  evalMachine = machineModule: evalConfig {
    modules = [ machineModule ];
  };

  machinesDirs =
    if builtins.pathExists ./machines
    then builtins.readDir ./machines
    else { };

  machineSettings = machineName:
    if builtins.pathExists ./machines/${machineName}/settings.json
    then (builtins.fromJSON (builtins.readFile ./machines/${machineName}/settings.json))
    else { };

  # load all clan modules by default
  machineModule = machineName: {
    imports =
      (lib.attrValues inputs.clan.clanModules)
      ++ [ (machineSettings machineName) ];
  };

  # autoamtically generate machine modules for all directories under ./machines
  machineModulesGenerated =
    lib.flip lib.mapAttrs' machinesDirs (name: _: {
      name = "machine-${name}";
      value = machineModule name;
    });

  # re-read the machine modules from the flake outputs, to allow amchines being
  # defined by custom mechanisms
  machineModules =
    lib.filterAttrs (name: _: lib.hasPrefix "machine-" name) self.nixosModules;

in
{
  imports =
    let
      relPaths = builtins.fromJSON (builtins.readFile ./imports.json);
      paths = map (path: ./. + path) relPaths;
    in
    paths;
  flake.nixosModules = machineModulesGenerated;
  # generate nixosConfigurations for all machines under self.nixosModules.machines-{machine_name}
  flake.nixosConfigurations =
    lib.mapAttrs (_: mod: evalMachine mod) machineModules;
}