#!/bin/sh /etc/rc.common
#

START=99
EXTRA_COMMANDS="toggle cfgup"
EXTRA_HELP="	toggle	Toggle adblocking 'on' or 'off'
	cfgup	Update the adblock configuration file"

adb_debug=0
adb_pid="${$}"
adb_script="/usr/bin/adblock-update.sh"
adb_helper="/usr/bin/adblock-helper.sh"
adb_pidfile="/var/run/adblock.pid"
bg_parm="&"
unset log_parm

if [ $((adb_debug)) -eq 0 ]
then
    exec 2>/dev/null
fi

if [ -t 1 ]
then
    log_parm="-s"
    unset bg_parm
fi

if [ -r "${adb_pidfile}" ]
then
    logger ${log_parm} -t "adblock[${adb_pid}] error" "adblock service already running ($(cat ${adb_pidfile}))" 2>&1
    exit 255
fi

boot()
{
    return 0
}

start()
{
    eval "${adb_script}" ${bg_parm}
    return 0
}

restart()
{
    stop
    start
}

reload()
{
    reload="true"
    stop
    start
}

stop()
{
    . "${adb_helper}"
    f_envload
    f_rmdns
    f_rmuhttpd
    config_foreach f_rmconfig source
    if [ -n "$(${adb_uci} -q changes adblock)" ]
    then
        "${adb_uci}" -q commit adblock
    fi
    if [ -z "${reload}" ]
    then
        f_rmfirewall
    fi
    if [ -n "${rm_dns}" ] || [ -n "${rm_uhttpd}" ] || [ -n "${rm_fw}" ] || [ -n "${rm_cfg}" ]
    then
        logger ${log_parm} -t "adblock[${adb_pid}] info " "all adblock related services stopped" 2>&1
    fi
    return 0
}

toggle()
{
    . "${adb_helper}"
    if [ -d "${adb_dnshidedir}" ]
    then
        list_dns="$(find "${adb_dnsdir}" -maxdepth 1 -type f -name "${adb_dnsprefix}*" -print)"
        list_dnshide="$(find "${adb_dnshidedir}" -maxdepth 1 -type f -name "${adb_dnsprefix}*" -print)"
        if [ -n "${list_dns}" ]
        then
            source="${adb_dnsdir}/${adb_dnsprefix}"
            target="${adb_dnshidedir}"
            pos="off"
        elif [ -n "${list_dnshide}" ]
        then
            source="${adb_dnshidedir}/${adb_dnsprefix}"
            target="${adb_dnsdir}"
            pos="on"
        fi
        if [ -n "${list_dns}" ] || [ -n "${list_dnshide}" ]
        then
            if [ "$(${adb_uci} -q get adblock.global.adb_restricted)" = "1" ]
            then
                adb_uci="$(which true)"
            fi
            mv -f "${source}"* "${target}"
            "${adb_uci}" -q set "adblock.global.adb_dnstoggle=${pos}"
            "${adb_uci}" -q commit "adblock"
            /etc/init.d/dnsmasq restart
            logger ${log_parm} -t "adblock[${adb_pid}] info " "toggle for adblock switched '${pos}'" 2>&1
        fi
    fi
    return 0
}

cfgup()
{
    stop
    cp -pf "/etc/adblock/adblock.conf.default" "/etc/config/adblock"
    rc=$?
    if [ $((rc)) -eq 0 ]
    then
        logger ${log_parm} -t "adblock[${adb_pid}] info " "default adblock configuration applied, please check the settings in '/etc/config/adblock'" 2>&1
    else
        logger ${log_parm} -t "adblock[${adb_pid}] info " "default adblock configuration not found, please re-install the package via 'opkg install adblock --force-maintainer'" 2>&1
    fi
    return 0
}