%%% -*- mode: erlang -*-

%%% The MIT License
%%%
%%% Copyright (C) 2011-2016 by Joseph Wayne Norton <norton@alum.mit.edu>
%%% Copyright (C) 2002 by Joe Armstrong
%%%
%%% Permission is hereby granted, free of charge, to any person obtaining a copy
%%% of this software and associated documentation files (the "Software"), to deal
%%% in the Software without restriction, including without limitation the rights
%%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%%% copies of the Software, and to permit persons to whom the Software is
%%% furnished to do so, subject to the following conditions:
%%%
%%% The above copyright notice and this permission notice shall be included in
%%% all copies or substantial portions of the Software.
%%%
%%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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%%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%%% THE SOFTWARE.

+NAME("file_server").

+VSN("ubf2.0").

+TYPES

info()         :: info;
description()  :: description;
contract()     :: contract;

file()         :: ubfstring();
ls()           :: ls;
files()        :: {files, [file()]};
getFile()      :: {get, file()};
noSuchFile()   :: noSuchFile.


+STATE start
       ls()      => files()     & start;
       getFile() => binary()    & start
		 | noSuchFile() & stop.


+ANYSTATE
	info()        => string();
	description() => string();
	contract()    => term().