#!/bin/bash
#
## Creates network configs for all WLAN adapters


die () {
    echo "$0:" "$@" >&2
    exit 1
}

# Load settings
if [[ -f "/run/archiso/bootmnt/config/arch.conf" ]]; then
    source "/run/archiso/bootmnt/config/arch.conf" || \
        die "ERROR: WK_ARCH media may be damaged. Please reboot or try another UFD"
else
    source "/usr/local/bin/arch.conf" || \
        die "ERROR: WK_ARCH media may be damaged. Please reboot or try another UFD"
fi

# Init
WIFI_SSID="${WIFI_SSID}"
WIFI_PASS="${WIFI_PASS}"
metric_value=20

# Add WLAN cards to config
for d in /sys/class/net/wl*; do
    device="$(basename $d)"
    # Create networkd entry
    echo "[Match]" > /etc/systemd/network/$device.network
    echo "Name=$device" >> /etc/systemd/network/$device.network
    echo "" >> /etc/systemd/network/$device.network
    echo "[Network]" >> /etc/systemd/network/$device.network
    echo "DHCP=yes" >> /etc/systemd/network/$device.network
    echo "" >> /etc/systemd/network/$device.network
    echo "[DHCP]" >> /etc/systemd/network/$device.network
    echo "RouteMetric=$metric_value" >> /etc/systemd/network/$device.network
    metric_value=$((metric_value+1))

    # Create wpa_supplicant entry
    if [[ -f "/run/archiso/bootmnt/config/wifi.conf" ]]; then
        cp -f "/run/archiso/bootmnt/config/wifi.conf" "/etc/wpa_supplicant/wpa_supplicant-$device.conf"
    elif [[ -f "/usr/local/bin/arch.conf" ]]; then
        cp -f "/usr/local/bin/arch.conf" "/etc/wpa_supplicant/wpa_supplicant-$device.conf"
    else
        die "ERROR: WK_ARCH media may be damaged. Please reboot or try another UFD"
    fi
done

# Enable WLAN devices
systemctl restart systemd-networkd.service
for d in /sys/class/net/wl*; do
    device="$(basename $d)"
    systemctl start wpa_supplicant@$device.service
done