extends RefCounted
class_name MemoryCollector


func collect() -> float:
	var meminfo := _read_meminfo()
	if meminfo.is_empty():
		return 0.0

	var total := meminfo.get("MemTotal", 0)
	var available := meminfo.get("MemAvailable", 0)

	if total == 0:
		return 0.0

	return 100.0 * (1.0 - float(available) / float(total))


func _read_meminfo() -> Dictionary:
	var file := FileAccess.open("/proc/meminfo", FileAccess.READ)
	if file == null:
		return {}

	var result: Dictionary = {}
	while not file.eof_reached():
		var line: String = file.get_line().strip_edges()
		if line.is_empty():
			continue
		var parts := line.split(":", false)
		if parts.size() < 2:
			continue
		var key := parts[0].strip_edges()
		var val_str := parts[1].strip_edges().split(" ", false)[0]
		result[key] = val_str.to_int()

	return result