extends Control

const LoadingScreen = preload("res://src/Game/LoadingScreen.gd")
const SoundTabScene = preload("res://src/Game/Menu/OptionMenu/SoundTab.tscn")

@export_subgroup("Nodes")
@export var loading_screen : LoadingScreen

func _ready() -> void:
	if ArgumentParser.get_argument(&"help"):
		ArgumentParser._print_help()
		# For some reason this doesn't get freed properly
		# Godot will always quit before it frees the active StreamPlayback resource
		# This hack fixes that
		MusicConductor.queue_free()
		get_tree().quit()
		return

	# Hack to ensure Sound Options load
	var sound_tab := SoundTabScene.instantiate()
	sound_tab.visible = false
	add_child(sound_tab)
	Events.Options.load_settings_from_file()
	sound_tab.queue_free()

	loading_screen.start_loading_screen(_initialize_game)

func _load_compatibility_mode():
	# Set this to your Vic2 install dir or a mod's dir to enable compatibility mode
	# (this won't work for mods which rely on vanilla map assets, copy missing assets
	# into the mod's dir for a temporary fix)
	# Usage: OpenVic --compatibility-mode <path>

	var compatibility_mode_path : String = ArgumentParser.get_argument(&"compatibility-mode", "")

	if not compatibility_mode_path:
		# TODO - non-Windows default paths
		const default_path : String = "G:/Games/Steam-Library/steamapps/common/Victoria 2"
		compatibility_mode_path = default_path

	var compatibility_mode_paths : PackedStringArray = [compatibility_mode_path]

	# Example for adding mod paths
	#compatibility_mode_paths.push_back("C:/Program Files (x86)/Steam/steamapps/common/Victoria 2/mod/TGC")

	if GameSingleton.load_defines_compatibility_mode(compatibility_mode_paths) != OK:
		push_error("Errors loading game defines!")

# REQUIREMENTS
# * FS-333, FS-334, FS-335, FS-341
func _initialize_game() -> void:
	var start := Time.get_ticks_usec()
	loading_screen.try_update_loading_screen(0)
	GameSingleton.setup_logger()

	Localisation.initialize()
	loading_screen.try_update_loading_screen(15, true)

	_load_compatibility_mode()
	loading_screen.try_update_loading_screen(75, true)

	loading_screen.try_update_loading_screen(100)

	var end := Time.get_ticks_usec()
	Checksum.calculate_directory_checksum('res://')
	print(Checksum.get_checksum())
	
	print("Loading took ", float(end - start) / 1000000, " seconds")

	# change scene in a thread-safe way
	get_tree().call_deferred("change_scene_to_file", "res://src/Game/GameMenu.tscn")


func _on_splash_container_splash_end():
	loading_screen.show()