(* COCANWIKI - a wiki written in Objective CAML.
 * Written by Richard W.M. Jones <rich@merjis.com>.
 * Copyright (C) 2004 Merjis Ltd.
 * $Id: delete_contact.ml,v 1.2 2004/09/23 11:56:47 rich Exp $
 *
 * This program 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.
 *
 * This program 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 this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *)

open Apache
open Registry
open Cgi
open Printf

open Cocanwiki
open Cocanwiki_ok

let run r (q : cgi) (dbh : Dbi.connection) hostid { hostname = hostname } _ =
  (* Cancel? *)
  if q#param_true "cancel" then (
    q#redirect ("http://" ^ hostname ^ "/_bin/contacts.cmo");
    return ()
  );

  (* We can delete multiple contact forms from this script, which is
   * quite unusual.
   *)
  let ids = List.map int_of_string (q#param_all "delete") in
  if ids = [] then (
    q#redirect ("http://" ^ hostname ^ "/_bin/contacts.cmo");
    return ()
  );

  (* Need to check the contact emails all belong to this host. *)
  let qs = Dbi.placeholders (List.length ids) in
  let sth = dbh#prepare_cached ("select count(*) from contacts
                                  where hostid = ? and id in " ^ qs) in
  sth#execute (`Int hostid :: (List.map (fun id -> `Int id) ids));

  assert (sth#fetch1int () = List.length ids);

  (* Delete them. *)
  let sth = dbh#prepare_cached ("delete from contact_emails
                                  where contactid in " ^ qs) in
  sth#execute (List.map (fun id -> `Int id) ids);

  let sth = dbh#prepare_cached ("delete from contacts
                                  where hostid = ? and id in " ^ qs) in
  sth#execute (`Int hostid :: (List.map (fun id -> `Int id) ids));

  (* Finish off. *)
  dbh#commit ();

  ok ~title:"Contact form(s) deleted" ~buttons:[ok_button "/_bin/contacts.cmo"]
    q "Those contact form(s) were deleted."

let () =
  register_script ~restrict:[CanManageContacts] run