#!/usr/bin/perl -w

# Copyright (C) 2007 Apple Inc.  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

use strict;
use Getopt::Long;
use File::Basename;

my $showHelp = 0;
my $jsShellPath;

my $programName = basename($0);
my $usage = <<EOF;
Usage: $programName --shell=[path] [options] FILE FILE
  --help        Show this help message
  --shell       Path to javascript shell
EOF

GetOptions('shell=s' => \$jsShellPath,
           'help' => \$showHelp);

if (scalar @ARGV < 2 || !$jsShellPath || $showHelp) {
   print STDERR $usage;
   exit 1;
}

sub readResultsFile($)
{
    my ($filename) = @_;
    open FILE, "<${filename}";
    my $foundStart = 0;
    my $foundEnd = 0;
    my $result = "";
    while (<FILE>) {
        if (!$foundStart) {
	    if (/^[[][{]$/) {
		$foundStart = 1;
		$result .= $_;
	    }
	} else {
	    if (/^[}][]]$/) {
	        $foundEnd = 1;
		chomp;
		$result .= $_;
		last;
	    } else {
		$result .= $_;
	    }
	} 
    }
    close FILE;

    die "Cound not find data in file - needs to be bracketed by [{ and }]." unless ($foundStart && $foundEnd);

    return $result;
}

sub dumpToFile($$)
{
    my ($contents, $path) = @_;
    open FILE, ">$path";
    print FILE $contents;
    close FILE;
}

my $output = "var output1 = " . readResultsFile($ARGV[0]) . ";\n";
$output .= "var output2 = " . readResultsFile($ARGV[1]) . ";\n";

dumpToFile($output, "tmp/sunspider-comparison-data.js");

system("$jsShellPath", "-f", "tmp/sunspider-test-prefix.js", "-f", "tmp/sunspider-comparison-data.js", "-f", "resources/sunspider-compare-results.js");