#!/usr/bin/perl

########################################################
my $SYSTEM_VERS			= "/System/Library/CoreServices/SystemVersion.plist";
my $APPLICATION_LOC		= "/Applications/iMovie HD.app";
my $APPLICATION_VERS	= $APPLICATION_LOC . "/Contents/version.plist";
my $EXIT_VALUE			= 0;
########################################################

DO_CHECKS: 
{
	# Must NOT be tier 3
	my $TIER_3_LANG = "/var/db/.AppleTier3Language";
	if (-e $TIER_3_LANG) {
		$EXIT_VALUE = ( ( 1 << 6 ) | ( 1 << 5 ) | 19 );
		last;
    }

	# Must have min system
    if( (!-e $SYSTEM_VERS) ||
		CheckVersion( $SYSTEM_VERS, "10.3.4", "ProductVersion", "<" )) 
    {
        $EXIT_VALUE = ((1 << 6) | ( 1 << 5 ) | 16 );
        last;
    }

	# App must be at /Applications/iMovie.app ...
	unless(-e $APPLICATION_LOC) {
		$EXIT_VALUE = (( 1 << 6 ) | ( 1 << 5 ) | 17);
		last;
	}
	# ... and iMovie must be 5.0.0 to 5.0.2
	unless( CheckVersion($APPLICATION_VERS, "5.0.0", "CFBundleShortVersionString", ">=") and
			CheckVersion($APPLICATION_VERS, "5.0.2", "CFBundleShortVersionString", "<=")) {
				$EXIT_VALUE = (( 1 << 6 ) | ( 1 << 5 ) | 17);
				last;
	}

    ########################################################
    my $APP					= "iMovie HD.app";
    my $RUNNING_ERROR		= "Running";
	my $APP_IS_RUNNING 		= 0;
	my $SWU_APP				= "Software Update\.app";
	my $SWU_IS_RUNNING 		= 0;
	my $DISPLAYALERT        = $ARGV[0] . "/Contents/Resources/Alert.app/Contents/MacOS/Alert";
	########################################################
	open(PSOUT, "/bin/ps -awwx |");
	while( <PSOUT> ) {
		if( /\b$APP/ ) {
			$APP_IS_RUNNING = 1;
		}
	}
	close(PSOUT);
		
	open(PSOUT, "/bin/ps -awwx |");
	while( <PSOUT> ) {
		if( /\b$SWU_APP/ ) {
			$SWU_IS_RUNNING = 1;
		}
	}
	close(PSOUT);
		
	if (($APP_IS_RUNNING == 1) && ($SWU_IS_RUNNING == 0)) {
		$EXIT_VALUE = ((1 << 6) | ( 1 << 5 ) | 18 );
		last;
	} else {
		while (($APP_IS_RUNNING == 1) && ($SWU_IS_RUNNING == 1)) {
			$ENV{'ALERT_APP_ACTION'} = $RUNNING_ERROR;
			system($DISPLAYALERT,"");
			# per nat torkington
	
			$APP_IS_RUNNING = 0;
	
			open(PSOUT, "/bin/ps -awwx |");
			while( <PSOUT> ) {
				if( /\b$APP/ ) {
					$APP_IS_RUNNING = 1;
				}
			}
			close(PSOUT);
		} # while app is running, stay stuck here
	$EXIT_VALUE = 0;
	last;
	}
}

exit($EXIT_VALUE);


########################################################
########################################################

sub CheckVersion
{
    my $path            = $_[0];
    my $version         = $_[1];
    my $keyName         = $_[2];
    my $operator        = $_[3];
    
    my $oldSeperator;
    my $plistData;
    my @items;
    my $item;
    my $versiondata;
    my $i;
    my @theVersionArray;
    my %versiondata;
    my @versionArray;

    # if there's no THERE there, we return FALSE
    if (! -e $path) {
        return 0;
    }

    if (!$operator) {
        $operator = "==";
    }

    $oldSeperator = $/;
    $/ = \0;

    open( PLIST, "$path") || do {
        return 0;
    };

    $plistData = <PLIST>;
    $plistData =~ /<dict>(.*?)<\/dict>/gis;

    @items = split(/<key>/, $plistData);

    shift @items;
    foreach $item (@items) {
        $item =~ /(.*?)<\/key>.*?<string>(.*?)<\/string>/gis;
        $versiondata{ $1 } = $2;
    }

    close(PLIST);

    $/ = $oldSeperator;

    @theVersionArray = split(/\./, $versiondata{$keyName});
    for ($i = 0; $i < 3; $i++) {
        if(!$theVersionArray[$i]) {
            $theVersionArray[$i] = '0';
        }
    }

    @versionArray = split(/\./, $version);
    
    my $actualVersion;

    for ($i = 0; $i < 3; $i++) {
        if (($theVersionArray[$i] != $versionArray[$i]) or ($i == 2)) {

            $actualVersion = $theVersionArray[$i];
            $version = $versionArray[$i];

            last;
        }
    }

    my $expression = '$actualVersion ' . $operator . ' $version';
    if( eval ($expression) )
    {
        return 1;
    }
    else
    {
        return 0;
    }

}
