#!/usr/bin/perl

$td="/tmp/nib-$$";
system "rm -rf '$td'";
mkdir "/tmp/nib-$$" || die "cannot create temporary directory for processing";

$en=shift;
$tl=shift;

if ( $en eq '' || $tl eq '') {
    print "\n Usage: $ARGV[0] <english.nib> <lang.nib>\n\n";
    exit 1;
}

system "ibtool --generate-strings-file '$td/en.uni' '$en'" || die "converting en file to strings failed";
system "iconv -f utf-16 -t utf-8 '$td/en.uni' > '$td/en.txt'" || die "converting en strings to unicode failed";
system "ibtool --generate-strings-file '$td/tl.uni' '$tl'" || die "converting lang file to strings failed";
system "iconv -f utf-16 -t utf-8 '$td/tl.uni' > '$td/tl.txt'" || die "converting lang strings to unicode failed";

sub parse_text {
    while (<IN>) {
	#if (/\/\* Class = \"(.*?)\"; ([^ ]+) = \"(.*?)\"; ObjectId = \"(\d+)\";/) { };
	chomp;
	if (/^\"([a-zA-Z0-9.]+)\" = \"(.*)\";$/) {
	    $h{$1} = $2;
	    if (defined $cls) { $hc{$1} = $cls; undef $cls; }
	} elsif (/^\/\* Class = \"(.*?)\"; /) {
	    $cls = $1;
	} elsif ($_ eq '') {
	    undef $cls;
	} else {
	    print STDERR "WARNING: unknown line: $_\n";
	    undef $cls;
	}
    }
}

open IN, "$td/en.txt";
parse_text;
close IN;
%ent = %h;
undef %h;

open IN, "$td/tl.txt";
parse_text;
close IN;
%tlt = %h;
undef %h;

foreach (sort { $ent{$a} cmp $ent{$b} } keys %ent) {
    $tra = $tlt{$_};
    $tra = $ent{$_} if ($tra eq '');
    print "/* Entry = \"$_\"; Class = \"$hc{$_}\" */\n\"$ent{$_}\" = \"$tra\";\n\n";
}

foreach (keys(%tlt)) {
    if (!defined $ent{$_} && $ent{$_} ne '') { ## orphan non-empty text strings
	print "/* OrphanEntry = \"$_\"; Class = \"$hc{$_}\"; text = \"$ent{$_}\" */\n";
    }
}

if ($ENV{KEEP} ne '') {
    print STDERR "KEEP set, leaving all files in $td\n";
    exit0;
}

system "rm -rf '$td'";