#!/bin/sh

# NOTE: In this script the first value in the Choices lists will *not* be
# sorted (the "enter information manually" option is kept at the top).

[ -d debian/locales ] || mkdir debian/locales
[ -d debian/sort-tmp ] || mkdir debian/sort-tmp
cd debian/sort-tmp

tplfile=../choose-mirror-bin/DEBIAN/templates

templates=$(grep -E "^Template: mirror/(ht|f)tp/countries" $tplfile | cut -d" " -f2-)

# The first template will take longer because of locale generation
for template in $templates; do
	echo "Sorting template '$template'..."
	rm -f list.* sortedlist.*

	sed -n -e "\%^Template: $template$%,\%^Description:%p" $tplfile |
	perl -p -e '
		chomp;
		if (m/Choices-([^.]*)\.UTF-8:/) {
			open (OUT, "> list.$1");
			s/Choices-([^.]*)\.UTF-8: //;
			# split on commas, except for backslash-escaped ones
			@t = split(/(?<!\\), /);
			# Skip first value in list
			shift(@t);
			my $cnt = 1;
			foreach my $name (@t) {$cnt++; print OUT "$cnt $name\n";}
			close OUT;
		}
		$_="";'

	for file in list.*; do
		[ -e "$file" ] || continue
		[ $(cat "$file" | wc -l) -gt 1 ] || continue

		lang=${file#list.}
		unilang=$(grep "^$lang.* UTF-8" /usr/share/i18n/SUPPORTED | \
			sed -e 's/[@. ].*//;q' )
		if [ -z "$unilang" ]; then
			echo "W: language '$lang' skipped: no UTF-8 variant found" >&2
		else
			if [ ! -d ../locales/$unilang.UTF-8 ]; then
				localedef -c -f UTF-8 -i $unilang ../locales/$unilang.UTF-8
			fi
			# sed statement adds index for 1st (unsorted) value back in
			LOCPATH=`pwd` LC_ALL=../locales/$unilang.UTF-8 \
				sort -k 2.1 $file | sed -e 's/ .*/, /' | tr -d '\n' | \
				sed -e "s/^/Indices-$lang.UTF-8: 1, /" -e 's/, $//' \
				>sorted$file
			if [ -s sorted$file ]; then
				echo "" >>sorted$file
			else
				rm -f sorted$file
			fi
		fi
	done

	# Now the template file must be patched: all sortedlist.* files have
	# to be added to the current template.
	if ls sorted* >/dev/null 2>&1; then
		sed -e "\%$template$%{n;q;}" $tplfile >templates.tmp
		cat sorted* >>templates.tmp
		sed -e "\%$template$%!d;\%$template$%{:end;n;b end}" $tplfile | \
			sed '1,2d' >> templates.tmp
		mv templates.tmp  $tplfile
	else
		echo "I: nothing to be sorted"
	fi
done

cd ../..
rm -r debian/locales debian/sort-tmp