#!/usr/bin/perl
# vim: set ts=2 sw=2 tw=99 et: 

use strict;
use Cwd;
use File::Basename;
use File::Path;

my ($myself, $path) = fileparse($0);
chdir($path);

require 'helpers.pm';

#Go back above build dir
chdir(Build::PathFormat('../../..'));

#Get the source path.
our ($root) = getcwd();

my $reconf = 0;

#Create output folder if it doesn't exist.
if (!(-d 'OUTPUT')) {
  $reconf = 1;
} else {
  if (-f 'OUTPUT/sentinel') {
  	my @s = stat('OUTPUT/sentinel');
  	my $mtime = $s[9];
  	my @files = ('build/pushbuild.txt',
  							 'build/AMBuildScript',
  							 'build/product.version',
  							 'build/tools/bootstrap.pl');
  	my ($i);
  	for ($i = 0; $i <= $#files; $i++) {
  		if (IsNewer($files[$i], $mtime)) {
  			$reconf = 1;
  			last;
  		}
  	}
  } else {
  	$reconf = 1;
  }
}

if ($reconf) {
  rmtree('OUTPUT');
  mkdir('OUTPUT') or die("Failed to create output folder: $!\n");
  chdir('OUTPUT');

  print "Attempting to reconfigure...\n";

  my ($os, $bits, $mode);
  $os = $ARGV[0];
  $bits = $ARGV[1];
  $mode = $ARGV[2];

  my ($prefix, $python);
  if ($^O eq "darwin") {
  	$prefix = 'CC=clang CXX=clang++ ';
  	$python = 'python3';
  } elsif ($^O eq "linux") {
  	$prefix = 'CC="ccache gcc" CXX="ccache g++" ';
  	$python = 'python3';
  } elsif ($^O =~ /MSWin/) {
  	$prefix = '';
  	$python = "C:\\Python31\\Python.exe";
  }

  my ($cmdstring);
  $cmdstring = $prefix .
  						 $python . ' ' .
  						 Build::PathFormat('../build/configure.py') . ' ';

  if ($mode eq 'release') {
  	$cmdstring .= '--enable-optimize ';
  } else {
  	$cmdstring .= '--enable-debug ';
  }

  if ($bits eq '32') {
  	$cmdstring .= '--arch=x86 ';
  } else {
  	$cmdstring .= '--arch=x64 ';
  }

  my ($result);
  print "-> $cmdstring\n";
  $result = `$cmdstring`;

  print "$result\n";
  if ($? != 0) {
  	die("Could not configure: $!\n");
  }
  open(FILE, '>sentinel');
  print FILE "this is nothing.\n";
  close(FILE);
}

sub IsNewer
{
  my ($file, $time) = (@_);

  my @s = stat($file);
  my $mtime = $s[9];
  return $mtime > $time;
}

exit(0);