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

START=99
STOP=

USE_PROCD=1

MY_SERVICE_NAME=dlanApp2Backend
PLCNETAPI_MDNS_PATH=/etc/avahi/services/dvl-plcnetapi.service
PLCNETAPI_MDNS_PATH_TMP=/tmp/$(basename $PLCNETAPI_MDNS_PATH)
DEVICEAPI_MDNS_PATH=/etc/avahi/services/dvl-deviceapi.service
DEVICEAPI_MDNS_PATH_TMP=/tmp/$(basename $DEVICEAPI_MDNS_PATH)

PRODUCT_NAME="$(uci_get customization info product_name)"

# Determine, if PLC or G.hn is installed
if [ -f /etc/init.d/plc ]; then
    PLC_CFG_FILE=plc
    PLC_DISABLED=$(uci_get plc plc disabled 0)
    TECHNOLOGY=hpav
elif [ -f /etc/init.d/ghn ]; then
    PLC_CFG_FILE=ghn
    PLC_DISABLED=$(uci_get ghn ghn disabled 0)
    TECHNOLOGY=ghn
fi

logger() {
    command logger -t ${MY_SERVICE_NAME} "$@"
}

get_interface() {
    local board=$(cat /tmp/sysinfo/board_name)
    local interface=
    case "$board" in
        dlan-550-wifi|\
        dlan-1000-ac)
            interface=eth0
            ;;
        dlan2-2400-ac)
            interface=eth0
            ;;
        dlan-pro-1200-ac|\
        dlan-pro-1200-n)
            interface=eth0
            ;;
        *)
            interface=eth0
            ;;
    esac
    echo $interface
}

create_plcnetapi_mDNS_service() {
    DLANMAC="$(uci_get_state delos baptization DlanMacAddress | tr -d ':' | awk '{print toupper($0)}')"
    cat > $PLCNETAPI_MDNS_PATH_TMP <<EOF
<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<service-group>
    <name>$PRODUCT_NAME</name>
    <service protocol="ipv4">
        <type>_dvl-plcnetapi._tcp.</type>
        <port>47219</port>
        <txt-record>Path=plcnetapi</txt-record>
        <txt-record>Version=v0</txt-record>
        <txt-record>PlcMacAddress=$DLANMAC</txt-record>
        <txt-record>PlcTechnology=$TECHNOLOGY</txt-record>
    </service>
</service-group>
EOF

    cmp -s $PLCNETAPI_MDNS_PATH_TMP $PLCNETAPI_MDNS_PATH &&
        rm -f $PLCNETAPI_MDNS_PATH_TMP ||
        mv $PLCNETAPI_MDNS_PATH_TMP $PLCNETAPI_MDNS_PATH
}

create_deviceapi_mDNS_service() {
    MT="$(uci_get_state delos baptization MT)"
    SN="$(uci_get_state delos baptization SerialNumber)"
    PS="$(uci_get_state delos baptization PS)"
    . /etc/delos-version
    cat > $DEVICEAPI_MDNS_PATH_TMP <<EOF
<?xml version="1.0" standalone='no'?><!--*-nxml-*-->
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<service-group>
 <name>$PRODUCT_NAME</name>
  <service protocol="ipv4">
   <type>_dvl-deviceapi._tcp.</type>
   <port>14791</port>
   <txt-record>Path=deviceapi</txt-record>
   <txt-record>Version=v0</txt-record>
   <txt-record>MT=$MT</txt-record>
   <txt-record>SN=$SN</txt-record>
   <txt-record>FirmwareVersion=$FIRMWARE_VERSION</txt-record>
   <txt-record>PS=$PS</txt-record>
  </service>
</service-group>
EOF

    cmp -s $DEVICEAPI_MDNS_PATH_TMP $DEVICEAPI_MDNS_PATH &&
        rm -rf $DEVICEAPI_MDNS_PATH_TMP ||
        mv $DEVICEAPI_MDNS_PATH_TMP $DEVICEAPI_MDNS_PATH
}

start_service() {
    SERVICE_ENABLED=$(uci_get ${MY_SERVICE_NAME} global enabled 1)
    HTTP_REALM=$(uci_get ${MY_SERVICE_NAME} global http_realm "")
    HTTP_USERNAME=$(uci_get ${MY_SERVICE_NAME} global http_username "")
    HTTP_PASSWORD=$(uci_get ${MY_SERVICE_NAME} global http_password "")
    HTTP_HA1=$(uci_get ${MY_SERVICE_NAME} global http_ha1 "")
    LOG_LEVEL=$(uci_get ${MY_SERVICE_NAME} global LOG_LEVEL INFO)
    DLAN_MAC_ADDRESS=$(uci_get_state delos baptization DlanMacAddress)
    INTERFACE=$(get_interface)

    if [ ${SERVICE_ENABLED} -eq 1 ] && [ $PLC_DISABLED -eq 0 ] ; then
        if [ -f /usr/bin/dlanApp2Backend-plcnet ]; then

            create_plcnetapi_mDNS_service

            procd_open_instance
            procd_set_param command /usr/bin/dlanApp2Backend-plcnet -l "$LOG_LEVEL" -p 47219 -i $INTERFACE -n $TECHNOLOGY -m "$DLAN_MAC_ADDRESS" -r /usr/sbin/dlanApp2Backend_get_router_mac.sh
            # Respawn: Threshold in seconds, timeout, retries
            procd_set_param respawn 3600 5 5
            procd_set_param stdout 1 # forward stdout to logd
            procd_set_param stderr 1 # same for stderr
            procd_close_instance
        fi
    else
        # Remove mDNS service announcement for deviceapi if PLC is not active or app backend is not running
        rm -f $PLCNETAPI_MDNS_PATH
    fi

    if [ ${SERVICE_ENABLED} -eq 1 ]; then
        if [ -f /usr/bin/dlanApp2Backend-device ]; then

            create_deviceapi_mDNS_service

            procd_open_instance
            procd_set_param command /usr/bin/dlanApp2Backend-device -l "$LOG_LEVEL" -R "$HTTP_REALM" -U "$HTTP_USERNAME" -P "$HTTP_PASSWORD" -H "$HTTP_HA1"
            # Respawn: Threshold in seconds, timeout, retries
            procd_set_param respawn 3600 5 5
            procd_set_param stdout 1 # forward stdout to logd
            procd_set_param stderr 1 # same for stderr
            procd_close_instance
        fi
    else
        # Remove mDNS service announcement for deviceapi if backend is disabled
        rm -f $DEVICEAPI_MDNS_PATH
    fi
}

stop_service() {
    rm -f $PLCNETAPI_MDNS_PATH
    rm -f $DEVICEAPI_MDNS_PATH
}

service_triggers() {
    procd_add_reload_trigger $MY_SERVICE_NAME $PLC_CFG_FILE
}