#!/usr/bin/env nu

let level_colors = {
	TRACE: (ansi m)
	DEBUG: (ansi c)
	INFO: (ansi g)
	WARN: (ansi y)
	ERROR: (ansi rb)
}

# Attach to serial logs of a running firmware
def main [
	--serial (-s): string # The serial device to get logs from.
] {
	let serial = if $serial == null {
		"/dev/serial/by-id/usb-Tux_Tangentbord1_42069-if00"
	} else {
		$serial
	}

	print -n ("waiting for serial log " + $serial)

	while not ($serial | path exists) {
		print -n "."
		sleep 500ms
	}
	echo

	cat $serial |
		parse -r '\[(?<timestamp>[0-9\.]*)\] \((?<level>\w*)\) (?<message>.*)' |
		each { |it|
			print -n "[" (ansi d) $it.timestamp (ansi reset) "] "
			print -n "(" ($level_colors | get $it.level) $it.level (ansi reset) ") "
			print $it.message
		}
}