#!/bin/bash
# info: change sys language
# options: LANGUAGE
#
# The function for changing system language.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument definition
language=$1

# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf


is_language_valid() {
    if [ ! -e "$VESTA/web/inc/i18n/$language.php" ]; then
        echo "Error: language file $language doesn't exist"
        log_event "$E_NOTEXIST $ARGUMENTS"
        exit $E_NOTEXIST
    fi
}


#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

check_args '1' "$#" 'LANGUAGE'
is_format_valid 'language'
is_language_valid $language


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Change language
if [ -z "$(grep LANGUAGE $VESTA/conf/vesta.conf)" ]; then
    echo "LANGUAGE='$language'" >> $VESTA/conf/vesta.conf
else
    sed -i "s/LANGUAGE=.*/LANGUAGE='$language'/g" $VESTA/conf/vesta.conf
fi


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

# Logging
log_event "$OK" "$ARGUMENTS"

exit