extends Node

@warning_ignore("unused_signal")
signal on_game_paused
@warning_ignore("unused_signal")
signal on_game_resumed
@warning_ignore("unused_signal")
signal on_photo_highlighted(teture: Texture)
@warning_ignore("unused_signal")
signal on_enable_photo_mode_request
@warning_ignore("unused_signal")
signal on_disable_photo_mode_request
@warning_ignore("unused_signal")
signal on_photo_taken_prepare
@warning_ignore("unused_signal")
signal on_photo_taken_started
@warning_ignore("unused_signal")
signal on_photo_taken_making
@warning_ignore("unused_signal")
signal on_photo_taken_finished
@warning_ignore("unused_signal")
signal on_photo_mode_black_screen_disappeared

const SAVE_PATH: String = "user://savegame.json"

var save_data: SaveGameData = SaveGameData.new()
var is_loaded: bool = false

func _ready() -> void:
	load_game()
	apply_video_settings()

func apply_video_settings() -> void:
	get_viewport().use_taa = save_data.anti_aliasing
	var msaa_mode = Viewport.MSAA_2X if save_data.anti_aliasing else Viewport.MSAA_DISABLED
	get_viewport().msaa_3d = msaa_mode
	get_viewport().msaa_2d = msaa_mode

	match save_data.window_mode_index:
		0:
			DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_EXCLUSIVE_FULLSCREEN)
		1:
			DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_FULLSCREEN)
		2:
			DisplayServer.window_set_mode(DisplayServer.WINDOW_MODE_WINDOWED)
			DisplayServer.window_set_flag(DisplayServer.WINDOW_FLAG_BORDERLESS, false)

	if save_data.window_mode_index == 2 and save_data.resolution_x > 0 and save_data.resolution_y > 0:
		DisplayServer.window_set_size(Vector2i(save_data.resolution_x, save_data.resolution_y))
		
		# Optional: center the window if resized
		var screen_center = DisplayServer.screen_get_position() + DisplayServer.screen_get_size() / 2
		var window_size = DisplayServer.window_get_size()
		DisplayServer.window_set_position(screen_center - window_size / 2)


func save_game() -> void:
	var save_file = FileAccess.open(SAVE_PATH, FileAccess.WRITE)
	var json_string = JSON.stringify(save_data.to_dictionary())
	save_file.store_line(json_string)

func load_game() -> void:
	if not FileAccess.file_exists(SAVE_PATH):
		save_data = SaveGameData.new()
		is_loaded = true
		return
		
	var file = FileAccess.open(SAVE_PATH, FileAccess.READ)
	var json_string = file.get_as_text()
	
	var json = JSON.new()
	var parse_result = json.parse(json_string)
	
	save_data = SaveGameData.new()
	if parse_result == OK and json.data is Dictionary:
		save_data = SaveGameData.from_dictionary(json.data)
	
	is_loaded = true

func pause_game() -> void:
	get_tree().paused = true

func resume_game() -> void:
	get_tree().paused = false

func quit_game() -> void:
	SceneManager.quit_game()