extends Node

@export var checksum_test = false
@export var load_playlist_from_file = false
@export var hub_world : level_resource
@export var maps_in_rotation : Array[level_resource] = []
@export var gamemodes_in_rotation : Array[gamemode]= []
@export var chest_drops : Array[Resource]
@export var levels_per_round : int = 10
@export var rounds_per_match : int = 3
@export var chests_per_match : int = 100
@export var matches_per_year : int = 52

func generate_playlist() -> void:
	var playlist_name = only_valid_chars(GameGlobals.all_user_leaderboards[GameGlobals.user_id][GameGlobals.last_leaderboard_id])
	var playlist = []
	
	set_seed(playlist_name)
	
	for h in matches_per_year:
		var matches = []
		var chests = []
		var round = []
		for i in rounds_per_match:
			for x in levels_per_round:
				var gamemode_path = gamemodes_in_rotation.pick_random().resource_path
				var level_selection = maps_in_rotation.pick_random()
				var level_details = {
					"level_path" : level_selection.level_path,
					"level_name" : level_selection.level_name,
					"gamemode_path" : gamemode_path
				}
				round.append(level_details)
		
		var chest_serial_no : int = 1
		
		for y in chests_per_match:
			var drop = chest_drops.pick_random()
			
			var chest_details = {
				"serial" : chest_serial_no,
				"drop" : drop
			}
			chests.append(chest_details)
			chest_serial_no += 1
		
		var numbers = []
		for i in range(chests_per_match):
			numbers.append(i)
		
		numbers.shuffle()
		
		var match_details = {"round" : round,"chests" : chests,"chest_order" : numbers}
		
		matches.append(match_details)
		
		playlist.append(matches)
	print(playlist[0][0]["round"][0])
	print(playlist[0][0]["chests"][3])
	print(playlist[0][0]["chest_order"])
	GameGlobals.playlist = playlist

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():
	generate_playlist()
	GameGlobals.current_match = GameGlobals.playlist[0]
	

func set_seed(playlist_name):
	var seed_to_use
	
	if playlist_name:
		seed_to_use = hash(playlist_name)
	else:
		seed_to_use = randi()
	
	seed(seed_to_use)

func _on_gui_input(event: InputEvent) -> void:
	generate_playlist()