#!/bin/sh -e

user=$1
language=$2
validated_language=

[ -n "$user" -a -n "$language" ] || exit 0

langtoolsdir=/usr/share/language-tools

if [ $language = "${language%:*}" ]; then
    validated_language=$( $langtoolsdir/language-validate $language )
    renewed_langlist=$( $langtoolsdir/update-langlist $validated_language $user )
else
    # $language contains a priority list
    validated_language=$( $langtoolsdir/language-validate ${language%%:*} )
    renewed_langlist=$validated_language:${language#*:}
fi

locale_name=$( $langtoolsdir/language2locale $validated_language )

( $langtoolsdir/save-to-profile $user $renewed_langlist $locale_name )

echo $validated_language