#!/bin/sh

#TODO: debugging
#logfile="/tmp/`basename $0`.log"
#exec 3<> "$logfile"
#exec >&3
#exec 2>&3

#set -x

. /lib/functions.sh
. /usr/lib/configsync_lib.sh

SERVICE=wireless
PSERVICE=${CS_PREFIX}${SERVICE}
RADIO=wifi
CS_SERVICE=$1; shift

my_logger() {
    logger -t configsync_executor "${CS_SERVICE}" "${@}"
}

configsync_to_system()
{
        my_logger "This is ${0}/configsync_to_system()!"

        CS_RADIO=$1
        CS_HWMODE=$2

        # === radio options ===

        hwmode=
        I=0
        while uci_tmp get ${PSERVICE}."$RADIO"$I >/dev/null 2>&1
        do
            device="$RADIO"$I
            if [ "$( uci_tmp get ${PSERVICE}.$device.hwmode )" = $CS_HWMODE ] ; then
                hwmode=$CS_HWMODE
                break
            fi

            I=$((I+1))
        done

        if [ -z "$hwmode" ] ; then
            my_logger "INFO: no $CS_RADIO GHz radio found. Exiting."
            return 1
        fi

        # make working copy and get values from there step by step
        uci_tmp revert $CS_SERVICE
        uci_cs export $CS_SERVICE | uci_tmp import $CS_SERVICE

        # Note: UCI lists are not supported by this construct. They are
        # awkward in handling anyways and thus should not be used if
        # possible.
        # TODO: complete the set of options
        synced_options="htmode
disabled
cfg_disabled
country"
        for synced_option in $synced_options; do
            VALUE="$( uci_tmp get ${CS_SERVICE}.radio.$synced_option )"
            uci_tmp set ${PSERVICE}.$device.$synced_option="$VALUE"
        done


        # === iface options ===

        synced_options="device
disabled
ssid
encryption
key
dvl_main
dvl_guest
network
mode
wds
ieee80211w
wps_config
uapsd
rrm
wnm
rsn_preauth
ieee80211r
hidden
isolate
maxassoc
wps_config"

        # Note: UCI lists are not supported by this construct
        # TODO: check the set of options

        # loop system configuration: delete deleted interfaces (SSID|MODE)
        J=0
        while uci_tmp get ${PSERVICE}.@wifi-iface[$J]
        do
            DELETE=1
            P_SSID="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].ssid )"
            P_MODE="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].mode )"
            iface_device="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].device )"

            if [ "$device" = "$iface_device" ]; then
                I=0
                while uci_tmp get ${CS_SERVICE}.@wifi-iface[$I]
                do
                    CS_SSID="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].ssid )"
                    CS_MODE="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].mode )"
                    if [ "${P_SSID}" = "${CS_SSID}" ] && [ "${P_MODE}" = "${CS_MODE}" ]; then
                        DELETE=0
                        break
                    fi
                    I=$((I+1))
                done
            else
                DELETE=0
            fi

            if [ $DELETE -eq 1 ]; then
                uci_tmp delete $PSERVICE.@wifi-iface[$J]
            else
                J=$((J+1))
            fi
        done


        # loop cs configuration: and merge known interfaces and add new interfaces (SSID|MODE)
        I=0
        while uci_tmp get ${CS_SERVICE}.@wifi-iface[$I]
        do
            CS_SSID="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].ssid )"
            CS_MODE="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].mode )"

            # loop temp configuration
            FOUND=0
            J=0
            while uci_tmp get ${PSERVICE}.@wifi-iface[$J]
            do
                iface_device="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].device )"

                # delete interface if device not available (corrupt configuration)
                if [ "$iface_device" = "" ]; then
                    uci_tmp delete $PSERVICE.@wifi-iface[$J]
                    continue
                fi

                # search interface in temp configuration
                if [ "$device" = "$iface_device" ]; then
                    P_SSID="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].ssid )"
                    P_MODE="$( uci_tmp get ${PSERVICE}.@wifi-iface[$J].mode )"
                    if [ "${P_SSID}" = "${CS_SSID}" ] && [ "${P_MODE}" = "${CS_MODE}" ]; then
                        # if ssid found -> merge
                        for synced_option in $synced_options; do
                            VALUE="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].$synced_option )"
                            uci_tmp set ${PSERVICE}.@wifi-iface[$J].$synced_option="$VALUE"
                        done
                        FOUND=1
                        break
                    fi
                fi
                J=$((J+1))
            done

            if [ $FOUND -eq 0 ]; then
                # if ssid not found -> add
                local entry=$(uci_tmp add ${PSERVICE} wifi-iface)
                for synced_option in $synced_options; do
                    VALUE="$( uci_tmp get ${CS_SERVICE}.@wifi-iface[$I].$synced_option )"
                    uci_tmp set ${PSERVICE}.$entry.$synced_option="$VALUE"
                done
            fi
            I=$((I+1))
        done

        add_to_list $CS_IMPORTSERVICELIST ${SERVICE}
}

dynamic_update()
{
        my_logger "This is ${0}/dynamic_update()!"
}

init()
{
        my_logger "This is ${0}/init()!"
}

if [ "${1}" = "init" ] || [ "${1}" = "configsync_to_system" ] || [ "${1}" = "dynamic_update" ]; then
    "${@}"
else
        my_logger "Unknown command ${1} in ${0}!"
fi