#!/bin/sh
# wrapper for conditional setting of uci config
# compare http://wiki.openwrt.org/doc/techref/uci

# TODO: add more docs, see http://docs.ansible.com/developing_modules.html

# parameters are command, key, value
source ${1}

unquoted_key="$(echo $key | sed -e s/\'//g)"
unquoted_value="$(echo $value | sed -e s/\'//g)"

# test if we need to apply a change
case $command in
    'set')
        [ "$(uci get "$unquoted_key")" = "$value" ]
        changed=$?
        ;;
    'add_list')
        uci get "$unquoted_key" 2>/dev/null |grep -q "$value"
        changed=$?
        ;;
esac

if [ $changed -eq 0 ]
then
    echo -n '{"changed": false}'
else
    if [ -z "${_ansible_check_mode}" -o "${_ansible_check_mode}" = "False" ]
    then
        logger uci $(uci "${command}" ${unquoted_key}="${unquoted_value}")
    fi
    echo -n '{"changed": true, "msg": "executed uci '${command}' '${unquoted_key}'='${value}'"}'
fi