#!/bin/bash
#
# store config settings
#

CONF="/etc/speaker.conf"
NET_CONF="/etc/netplan/01-netcfg.yaml"

[ ! -f "/etc/speaker.conf" ] && exit 1

declare -A mask_table=(
        ["255.255.255.255"]="32"
        ["255.255.255.254"]="31"
        ["255.255.255.252"]="30"
        ["255.255.255.248"]="29"
        ["255.255.255.240"]="28"
        ["255.255.255.224"]="27"
        ["255.255.255.192"]="26"
        ["255.255.255.128"]="25"
        ["255.255.255.0"]="24"
        ["255.255.254.0"]="23"
        ["255.255.252.0"]="22"
        ["255.255.248.0"]="21"
        ["255.255.240.0"]="20"
        ["255.255.224.0"]="19"
        ["255.255.192.0"]="18"
        ["255.255.128.0"]="17"
        ["255.255.0.0"]="16"
        ["255.254.0.0"]="15"
        ["255.252.0.0"]="14"
        ["255.248.0.0"]="13"
        ["255.240.0.0"]="12"
        ["255.224.0.0"]="11"
        ["255.192.0.0"]="10"
        ["255.128.0.0"]="9"
        ["255.0.0.0"]="8"
        ["254.0.0.0"]="7"
        ["252.0.0.0"]="6"
        ["248.0.0.0"]="5"
        ["240.0.0.0"]="4"
        ["224.0.0.0"]="3"
        ["192.0.0.0"]="2"
        ["128.0.0.0"]="1"
        ["0.0.0.0"]="0"
    )

net_type=`sysconf ${CONF} get system ip_assign`

if [ "${net_type}" = "dhcp" ]; then
    cat << END > ${NET_CONF}
network:
    version: 2
    ethernets:
        eth1:
            dhcp4: yes
            addresses: []
            optional: yes
            dhcp-identifier: mac
            dhcp4-overrides:
                route-metric: 200
END

elif [ "${net_type}" = "static" ]; then
    ip=`sysconf ${CONF} get system ipaddr`
    mask=`sysconf ${CONF} get system netmask`
    gateway=`sysconf ${CONF} get system gateway`
    dns=`sysconf ${CONF} get system dns1`
    dns2=`sysconf ${CONF} get system dns2`
    if [[ -n ${mask_table[$mask]} ]]; then
        masklen=${mask_table[$mask]}
    else
        masklen=24
    fi
    if [ -n "${dns2}" ];then
        dns="${dns},${dns2}"
    fi

    cat << END > ${NET_CONF}
network:
    version: 2
    ethernets:
        eth1:
            dhcp4: no
            addresses: [${ip}/${masklen}]
            gateway4: ${gateway}
            nameservers:
                addresses: [${dns}]
            optional: false
END
fi