#!/usr/bin/with-contenv bashio
# ==============================================================================
# Community Home Assistant Add-on: chrony
# Configures chrony
# ==============================================================================
readonly CHRONY_CONF='/etc/chrony/chrony.conf'
declare mode
declare -a serverlist

# Check running mode
if bashio::config.equals 'mode' 'pool' \
    && bashio::config.is_empty 'ntp_pool';
then
    bashio::log.fatal
    bashio::log.fatal 'Configuration of this add-on is incomplete.'
    bashio::log.fatal
    bashio::log.fatal 'pool mode is configured but the ntp_pool'
    bashio::log.fatal 'is empty'
    bashio::log.fatal
    bashio::log.fatal 'If using pool mode please set the'
    bashio::log.fatal '"ntp_pool" option in the add-on'
    bashio::log.fatal 'configuration.'
    bashio::log.fatal
    bashio::exit.nok
fi

if bashio::config.equals 'mode' 'server' \
    && bashio::config.is_empty 'ntp_server';
then
    bashio::log.fatal
    bashio::log.fatal 'Configuration of this add-on is incomplete.'
    bashio::log.fatal
    bashio::log.fatal 'server mode is configured but the ntp_server'
    bashio::log.fatal 'is empty'
    bashio::log.fatal
    bashio::log.fatal 'If using server mode please set the'
    bashio::log.fatal '"ntp_server" option in the add-on'
    bashio::log.fatal 'configuration.'
    bashio::log.fatal
    bashio::exit.nok
fi

# Write configuration file
mode=$(bashio::config 'mode')
bashio::log.debug "Running in NTP mode: ${mode}"
for server in $(bashio::config "ntp_${mode}"); do
    bashio::log.debug "Adding server ${server}"
    echo "${mode} ${server} iburst" >> ${CHRONY_CONF}
    serverlist+=("${server}")
done

echo "initstepslew 10 ${serverlist[*]}" >> ${CHRONY_CONF}