extends CanvasLayer

var disks_wanted = [1, 2, 3, 4]
var disks_loaded = []

var starting_integrity = 2
var total_integrity = starting_integrity + len(disks_wanted)

func _ready() -> void:
	$ConsoleText.text = $ConsoleText.text % get_memory_integrity()

func load_disk(disk_num: int) -> bool:
	if !disk_num or (disk_num in disks_loaded):
		return false
	
	disks_loaded.push_back(disk_num)
	disks_wanted.remove_at(disks_wanted.find(disk_num))
	
	print("Loaded up disk ", disk_num)
	printline(
		">> Loaded data disk %d (of %d). Memory integrity now at %d%%" % 
		[disk_num, len(disks_wanted) + len(disks_loaded), get_memory_integrity()]
	)

	if has_finished_initialization():
		printline(
			">> System initialization complete. Beginning reactivation sequence."
		)
		printline(
			">> Player: Press [E] or [Space] to return to the outside world."
		)

	return true

func get_next_disk_num() -> int:
	if disks_wanted.is_empty():
		return 0
	return disks_wanted.front()

func get_memory_integrity():
	return 100.0 / total_integrity * (starting_integrity + len(disks_loaded))

func has_finished_initialization() -> bool:
	return disks_wanted.is_empty()

func open() -> void:
	visible = true

func printline(line: String) -> void:
	open()
	$ConsoleText.text += "\n" + line

func close() -> void:
	if has_finished_initialization():
		get_tree().quit()

	visible = false