@tool
extends Node

@export var generate_playlist_now = false
@export var checksum_test = false
@export var load_playlist_from_file = false
@export var maps_in_rotation : Array[String] = []
@export var gamemodes_in_rotation : Array[gamemode]= []
@export var levels_per_round : int = 5
@export var rounds : int = 3

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	pass # Replace with function body.


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	if generate_playlist_now == true:
		generate_playlist()
	
	if load_playlist_from_file == true:
		load_playlist()
	

func generate_playlist() -> void:
	var playlist_name = only_valid_chars(GameGlobals.all_user_leaderboards[GameGlobals.user_id][GameGlobals.last_leaderboard_id])
	var playlist = []
	print("PLAYLIST CREATED FOR THE : ",playlist_name)
	for i in rounds:
		var round = []
		for x in levels_per_round:
			var level_details = {
				"map" : maps_in_rotation.pick_random(),
				"gamemode" : gamemodes_in_rotation.pick_random()
			}
			round.append(level_details)
		
		playlist.append(round)
	print("PLAYLIST : ", playlist[0][0])
	
	save_playlist(playlist)
	generate_playlist_now = false


func only_valid_chars(input_string: String) -> String:
	var valid_chars = ""
	
	for char in input_string:
		if char.is_valid_identifier():
			valid_chars += char
		elif  char == " ":
			valid_chars += "_"
	
	return valid_chars

func save_playlist(playlist):
	var playlist_name = str(only_valid_chars(GameGlobals.all_user_leaderboards[GameGlobals.user_id][GameGlobals.last_leaderboard_id]))
	var playlist_path : String = "user://"+ playlist_name + "_playlist.save"
	var file = FileAccess.open(playlist_path, FileAccess.WRITE)
	file.store_var(only_valid_chars(GameGlobals.all_user_leaderboards[GameGlobals.user_id][GameGlobals.last_leaderboard_id]))
	file.store_var(playlist)
	file.close()

func load_playlist():
	var playlist_path : String = "user://" + str(only_valid_chars(GameGlobals.all_user_leaderboards[GameGlobals.user_id][GameGlobals.last_leaderboard_id])) + "_playlist.save"
	if FileAccess.file_exists(playlist_path):
		var file = FileAccess.open(playlist_path, FileAccess.READ)
		var key = file.get_var()
		var playlist = file.get_var()
		print("KEY : ",key)
		GameGlobals.playlist_test = playlist
		file.close()
		print("PLAYLIST: ")
		print("------------------------------------------------------------------------------------")
		print(playlist)
	else:
		print("no data saved, generating new playlist...")
		generate_playlist()