#!/bin/bash
#-----------------------------------------------------------------------------------------------------------------------------------
#
# Rx3 Net Adm
#
# Copyright (C) 2025-2026 Arnaud G. GIBERT
# mailto:arnaud@rx3.net
#
# This is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; If not, see
# <https://www.gnu.org/licenses/>.
#
#-----------------------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------------------
# Includes
#-----------------------------------------------------------------------------------------------------------------------------------

: "${RX3_LIB_DIR:=/usr/lib/rx3}"
. "${RX3_LIB_DIR}/network.bash"



#-----------------------------------------------------------------------------------------------------------------------------------
# Global Variables
#-----------------------------------------------------------------------------------------------------------------------------------

declare -g VERSION="1.0.0"
declare -g    NAME="rx3_net_adm"
declare -g    HELP="usage: [-h | --help] | [-V | --version] | [-v | --verbose] {start|stop|restart|status|dump|table_set|refresh_address} [args...]"

declare -g    MODE="DEFAULT"
declare -g VERBOSE="FALSE"
declare -g DRY_RUN="FALSE"
declare -g  RETVAL=0
declare -g    prog="rx3-net"

declare -g   DEBUG=""
#declare -g   DEBUG="echo"
#declare -g   DEBUG=":"

declare -g     LOG=""
#declare -g     LOG=":"
#declare -g     LOG="echo"





#-----------------------------------------------------------------------------------------------------------------------------------
# Version Print
#-----------------------------------------------------------------------------------------------------------------------------------

rna_version_print()
{
    version_print
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Help Print
#-----------------------------------------------------------------------------------------------------------------------------------

rna_help_print()
{
    rna_version_print
    help_print
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Arg Parse
#-----------------------------------------------------------------------------------------------------------------------------------

rna_args_parse()
{
    tmp_args=$(getopt -o hvV --long help,verbose,version -n "${NAME}" -- "$@")

    if [ $? != 0 ]; then echo "Terminating..." >&2; exit 1; fi

    eval set -- "${tmp_args}"

    while true
    do
        case "$1" in
            # Options
            -h|--help)        MODE="EXIT"; rna_help_print;    shift;;
            -V|--version)     MODE="EXIT"; rna_version_print; shift;;
            -v|--verbose)  VERBOSE="TRUE";                    shift;;

            # End of options
            --)                                               shift;  break;;
            *) echo "args_parse internal error [$1]!";                exit 1;;
        esac
    done

    if [[ "${MODE}" != "EXIT" ]]
    then
        if [[ "${#}" -lt "1" ]]
        then
            MODE="EXIT"

            echo_error "Not enough args!"            
            rna_help_print
        else
            case "$1" in
                start|stop|restart|status|dump|table_set|refresh_address)
                    MODE="$(echo "$1" | tr '[:lower:]' '[:upper:]')"
                ;;
                *)
                    MODE="EXIT"
                    
                    echo_error "Invalid command: [$1]"
                    rna_help_print
                ;;
            esac
        fi
    fi
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Start
#-----------------------------------------------------------------------------------------------------------------------------------

rna_start()
{
    echo "Starting..."

    if [ -r /var/lock/subsys/rx3-net ]
    then
        echo "already started"
        RETVAL=0
    else
        network_start

        RETVAL=$?
        [ "${RETVAL}" = 0 ] && touch /var/lock/subsys/rx3-net
    fi

    echo
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Stop
#-----------------------------------------------------------------------------------------------------------------------------------

rna_stop()
{
    echo "Stopping..."

    if [ -r /var/lock/subsys/rx3-net ]
    then
        network_stop

        RETVAL=$?
    else
        echo "already stopped"
        RETVAL=0
    fi

    [ "${RETVAL}" = 0 ] && rm -f /var/lock/subsys/rx3-net

    echo
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Status
#-----------------------------------------------------------------------------------------------------------------------------------

rna_status()
{
    network_status
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Dump
#-----------------------------------------------------------------------------------------------------------------------------------

rna_dump()
{
    network_tab_dump
}





#--------------------------------------------------------------------------------------------------------------------------
# Table Set
#--------------------------------------------------------------------------------------------------------------------------

rna_table_set()
{
    echo "Setting ip:$1 table:$2"

    network_table_set "$1" "$2"
}





#--------------------------------------------------------------------------------------------------------------------------
# Address Refresh
#--------------------------------------------------------------------------------------------------------------------------

rna_address_refresh()
{
    dst_id="$1"

    if [[ "${dst_id}" != "" ]]
    then
        echo "Refreshing address: [${dst_id}]..."

        network_dst_tab_get         "${dst_id}"
        network_dst_address_refresh "${dst_id}" "${dst_host_name}" "${dst_ip}"
    else
        echo "Refreshing all address..."

        network_dst_address_refresh_all
    fi
}





#-----------------------------------------------------------------------------------------------------------------------------------
# Main
#-----------------------------------------------------------------------------------------------------------------------------------

rna_args_parse "$@"

if [[ "${MODE}" == "EXIT" ]]
then
    exit 0
fi

network_init

case "${MODE}" in
    START)
        rna_start
    ;;
    
    STOP)
        rna_stop
    ;;
    
    RESTART)
        rna_stop
        sleep 1
        rna_start
    ;;
    
    STATUS)
        rna_status
    ;;
    
    DUMP)
        rna_dump
    ;;
    
    TABLE_SET)
        rna_table_set "$2" "$3"
    ;;
    
    REFRESH_ADDRESS)
        rna_address_refresh "$2"
    ;;
    
    *)
        echo "Usage: $0 {start|stop|restart|status|dump|table_set|refresh_address}"
        RETVAL=1
    ;;
esac

network_deinit

exit ${RETVAL}