(* Copyright (C) 2004-2005, HELM Team.
 * 
 * This file is part of HELM, an Hypertextual, Electronic
 * Library of Mathematics, developed at the Computer Science
 * Department, University of Bologna, Italy.
 * 
 * HELM is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * HELM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HELM; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 * 
 * For details, see the HELM World-Wide-Web page,
 * http://helm.cs.unibo.it/
 *)

open Printf

let _ =
  Helm_registry.set "getter.mode" "remote";
  Helm_registry.set "getter.url" "http://mowgli.cs.unibo.it:58081/"

let body_RE = Str.regexp "^.*\\.body$"
let con_RE = Str.regexp "^.*\\.con$"

let unlink f =
  if Sys.file_exists f then
    Unix.unlink f

let rec parse uri tmpfile1 tmpfile2 =
(*  prerr_endline (sprintf "%s %s" tmpfile1 (match tmpfile2 with None -> "None" | Some f -> "Some " ^ f));*)
  (try
    let uri' = UriManager.uri_of_string uri in
    let time_new0 = Unix.gettimeofday () in
(*    let obj_new = CicPushParser.CicParser.annobj_of_xml tmpfile1 tmpfile2 in*)
    let obj_new = CicParser.annobj_of_xml uri' tmpfile1 tmpfile2 in
    let time_new1 = Unix.gettimeofday () in

    let time_old0 = Unix.gettimeofday () in
    let obj_old = CicPxpParser.CicParser.annobj_of_xml uri' tmpfile1 tmpfile2 in
    let time_old1 = Unix.gettimeofday () in

    let time_old = time_old1 -. time_old0 in
    let time_new = time_new1 -. time_new0 in
    let are_equal = (obj_old = obj_new) in
    printf "%s\t%b\t%f\t%f\t%f\n"
      uri are_equal time_old time_new (time_new /. time_old *. 100.);
    flush stdout;
  with
  | CicParser.Getter_failure ("key_not_found", uri)
    when Str.string_match body_RE uri 0 ->
      parse uri tmpfile1 None
  | CicParser.Parser_failure msg ->
      printf "%s FAILED (%s)\n" uri msg; flush stdout);
  unlink tmpfile1;
  (match tmpfile2 with None -> () | Some f -> unlink f)

let _ =
  try
    while true do
      let uri = input_line stdin in
      let tmpfile1 = Http_getter.getxml uri in
      let tmpfile2 =
        if Str.string_match con_RE uri 0 then begin
          Some (Http_getter.getxml (uri ^ ".body"))
        end else
          None
      in
      parse uri tmpfile1 tmpfile2
    done
  with End_of_file -> ()

(* Parsing test:
 * - XmlPushParser version *)
(*open Printf*)
(*open XmlPushParser*)

(*let print s = print_endline s; flush stdout*)

(*let callbacks =*)
(*  { default_callbacks with*)
(*      start_element =*)
(*        Some (fun tag attrs ->*)
(*          let length = List.length attrs in*)
(*          print (sprintf "opening %s [%s]"*)
(*            tag (String.concat ";" (List.map fst attrs))));*)
(*      end_element = Some (fun tag -> print ("closing " ^ tag));*)
(*      character_data = Some (fun data -> print "character data ...");*)
(*  }*)

(*let xml_parser = create_parser callbacks*)

(*let _ = parse xml_parser (`File Sys.argv.(1))*)

(* Parsing test:
 * - Pure expat version (without XmlPushParser mediation).
 * Originally written only to test if XmlPushParser mediation caused overhead.
 * That was not the case. *)

(*let _ =*)
(*  let ic = open_in Sys.argv.(1) in*)
(*  let expat_parser = Expat.parser_create ~encoding:None in*)
(*  Expat.set_start_element_handler expat_parser*)
(*    (fun tag attrs ->*)
(*      let length = List.length attrs in*)
(*      print (sprintf "opening %s [%d attribute%s]"*)
(*      tag length (if length = 1 then "" else "s")));*)
(*  Expat.set_end_element_handler expat_parser*)
(*    (fun tag -> print ("closing " ^ tag));*)
(*  Expat.set_character_data_handler expat_parser*)
(*    (fun data -> print "character data ...");*)
(*  try*)
(*    while true do*)
(*      Expat.parse expat_parser (input_line ic ^ "\n")*)
(*    done*)
(*  with End_of_file -> Expat.final expat_parser*)