-type integrity_config() :: disabled | #{enabled := true, key_source := integrity_key_source()}.

-type integrity_key_source() :: {env_var, EnvName :: binary()} | {sealed_file, Path :: file:filename()}.

-type store_config() ::
          #store_config{store_id :: atom(),
                        data_dir :: string(),
                        mode :: single | cluster,
                        timeout :: pos_integer(),
                        writer_pool_size :: pos_integer(),
                        reader_pool_size :: pos_integer(),
                        gateway_pool_size :: pos_integer(),
                        options :: map(),
                        integrity :: integrity_config()}.

-type subscription() ::
          #subscription{id :: binary(),
                        type :: subscription_type(),
                        selector :: binary() | map(),
                        subscription_name :: binary(),
                        subscriber_pid :: pid() | undefined,
                        created_at :: integer(),
                        pool_size :: pos_integer(),
                        checkpoint :: non_neg_integer() | undefined,
                        options :: map()}.

-type subscription_type() ::
          stream | event_type | event_pattern | event_payload | tags | by_stream | by_event_type |
          by_event_pattern | by_event_payload | by_tags.