# "The swarm-wide services run HERE."
#
# A swarm has one forge, one matrix, one SSO. This says this host is
# where they live, and asserts the per-service `enable`s that follow —
# the same mode-not-default shape as ./local-defaults.nix, one tier down.
#
# Only the *optional* services derive: matrix and authelia. The forge has
# no `enable` to assert, because it is not optional — it is the canonical
# store for the meta flake and every agent's config repo, so it deploys
# with hyperhive itself.
{
  lib,
  config,
  ...
}:
let
  swarmCfg = config.services.hyperhive.swarm;
in
{
  options.services.hyperhive.swarm.enableRequiredServices = lib.mkOption {
    type = lib.types.bool;
    default = false;
    example = true;
    description = ''
      Host the swarm's shared services on this hive. The services that
      exist once per swarm rather than once per hive and are *optional*
      — the matrix homeserver, the SSO provider — have their `enable`
      asserted from this, so a swarm's service host is declared in one
      place.

      The forge is swarm-wide too but has nothing to assert: it is the
      canonical store for the meta flake and every agent's config repo,
      so it deploys with hyperhive itself and is not optional.

      `services.hyperhive.enableAllLocalDefaults` turns this on as part
      of the all-on-one-box mode. Set it directly to run the swarm's
      services on a host that is not otherwise all-local — a dedicated
      services box with hives elsewhere is exactly that shape.

      With it off, this hive is a *client* of those services: it still
      configures how to reach them, it just doesn't run them.
    '';
  };

  # Same precedence reasoning as ./local-defaults.nix: fills in for an
  # operator who hasn't spoken, yields to one who has.
  config.services.hyperhive.swarm = {
    matrix.enable = lib.mkDefault swarmCfg.enableRequiredServices;
    authelia.enable = lib.mkDefault swarmCfg.enableRequiredServices;
  };
}