#!/usr/bin/env bash
set -euo pipefail

echo "Device info:"
hw_profiler="$(system_profiler SPHardwareDataType 2>/dev/null)"

chip="$(printf '%s\n' "$hw_profiler" | awk -F': ' '/Chip:/{print $2; exit}')"
if [[ -z "$chip" ]]; then
	chip="$(printf '%s\n' "$hw_profiler" | awk -F': ' '/Processor Name:/{print $2; exit}')"
fi
if [[ -z "$chip" ]]; then
	chip="Unknown"
fi
echo "$chip"

ioreg -l | grep -E '"DesignCapacity" =|"AppleRawMaxCapacity"' | grep -o '[0-9]*' | tr '\n' ',' | awk -F"," '{print (int(($2/$1)*1000 + 0.5)/10 "% battery health")}'

mem="$(printf '%s\n' "$hw_profiler" | awk -F': ' '/Memory:/{print $2; exit}')"
if [[ -z "$mem" ]]; then
	mem_bytes="$(sysctl -n hw.memsize 2>/dev/null || true)"
	if [[ -n "$mem_bytes" ]]; then
		mem="$(awk -v b="$mem_bytes" 'BEGIN { if (b>0) printf "%.0f GB", b/1073741824 }')"
	fi
fi
if [[ -z "$mem" ]]; then
	mem="Unknown"
fi
echo "$mem"

serial="$(printf '%s\n' "$hw_profiler" | awk -F': ' '/Serial Number \(system\):/{print $2; exit}')"
if [[ -z "$serial" ]]; then
	serial="Unknown"
fi
echo "$serial"

echo "$(sw_vers -productName) $(sw_vers -productVersion)"