{ config, pkgs, lib, ... }:
let
  cfg = config.services.matrix-synapse;
  pushers = lib.range 0 (cfg.pushers - 1);
in
{
  config = lib.mkIf (cfg.pushers > 0) {
    services.matrix-synapse = {
      settings = {
        instance_map = lib.listToAttrs (lib.map (index: {
          name = "pusher-${toString index}";
          value = {
            path = "/run/matrix-synapse/pusher-${toString index}.sock";
          };
        }) pushers);

        pusher_instances = lib.map (index: "pusher-${toString index}") pushers;
      };

      workers = lib.listToAttrs (lib.map (index: {
        name = "pusher-${toString index}";
        value = {
          worker_app = "synapse.app.generic_worker";
          worker_listeners = [ ];
        };
      }) pushers);
    };
  };
}