#!/bin/bash

#EEPROMHex='eeprom-content.GekkoScience-Compac.hex'  # File used for manufacturer brand
EEPROMHex='backup/eeprom-content.GekkoScience-Compac-bitshopperde.hex'
SerialPrefix='GS-'  # Prepended before 8-digit serial number
SerialNoFile='last-serialno'  # File holds the last allocated serial number

if ! [ -e "${SerialNoFile}" ]; then
	echo "WARNING: Initializing ${SerialNoFile} file (this should only happen ONCE EVER)" >&2
	echo '10000000' > "${SerialNoFile}"
fi
i="$(<"${SerialNoFile}")"
for dev in $(lsusb | perl -nle 'm/(\d{3}).*?(\d{3}).*CP210x/ && print "$1/$2"'); do
	let ++i
	echo "$i" >"${SerialNoFile}"
	FullSerial="${SerialPrefix}$i"
	echo "Programming serial number ${FullSerial} onto device $dev ..."
	./cp210x-program -m $dev -w -F "$EEPROMHex" \
	  --set-serial-number "${FullSerial}"
done