#!/usr/bin/perl

# Copyright 2013 BibLibre
#
# This 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 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
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA
#

use Modern::Perl;
use utf8;
use WWW::Mechanize;
use Data::Dumper;
use XML::Simple;
use Time::Progress;
use Getopt::Long;

my ( $max, $help );
GetOptions(
    "max:s" => \$max,
);

$max //= 10;

my $koha_conf = $ENV{KOHA_CONF};
my $xml       = XMLin($koha_conf);

use C4::Context;
my $user     = $ENV{KOHA_USER} || $xml->{config}->{user};
my $password = $ENV{KOHA_PASS} || $xml->{config}->{pass};
my $intranet = $ENV{KOHA_INTRANET_URL};

BAIL_OUT("You must set the environment variable KOHA_INTRANET_URL to ".
         "point this test to your staff client. If you do not have ".
         "KOHA_CONF set, you must also set KOHA_USER and KOHA_PASS for ".
         "your username and password") unless $intranet;

$intranet =~ s#/$##;

my $agent = WWW::Mechanize->new();
$agent->get( "$intranet/cgi-bin/koha/mainpage.pl" );
$agent->form_name('loginform');
$agent->field( 'password', $password );
$agent->field( 'userid',   $user );
$agent->field( 'branch',   '' );
$agent->click( '', 'login to staff client' );

$agent->get( "$intranet/cgi-bin/koha/mainpage.pl" );

my $cumul_time = 0;
for my $i ( 1 .. 5 ) {
    print "$i ";
    $cumul_time += launch ( "$intranet/cgi-bin/koha/admin/preferences.pl", $max );
}
print "\n";
say $cumul_time / 5;

$cumul_time = 0;
for my $i ( 1 .. 5 ) {
    print "$i ";
    $cumul_time += launch ( "$intranet/cgi-bin/koha/catalogue/search.pl?q=d", $max );
}
print "\n";
say $cumul_time / 5 . " s";


sub launch {
    my ( $url, $max ) = @_;
    my $p = new Time::Progress;
    $p->restart;


    for my $cpt ( 1 .. $max ) {
        my $pid;
        next if $pid = fork;
        die "fork failed: $!" unless defined $pid;
        $agent->get( $url );
        exit;
    }

    1 while (wait() != -1);
    $p->stop;
    return $p->report("%l");
}