extends SceneTree

const EntryShell = preload("res://entry/entry_shell.gd")
const SettingsStore = preload("res://entry/settings_store.gd")
const SAVE_PATH := "user://aetherbound_guild_p10_3.json"
const SETTINGS_PATH := "user://dev1_title_settings_test.json"

var failures: Array[String] = []


func _initialize() -> void:
	call_deferred("run_test")


func run_test() -> void:
	_cleanup()
	await verify_no_save_and_return_paths()
	await verify_resumable_state()
	_cleanup()
	if failures.is_empty():
		print("ABG_DEV1_TITLE_OK new_game=true continue_missing=disabled continue_valid=enabled settings_return=true credits_return=true exit_review=true frozen_routes=explained")
		quit(0)
	else:
		for failure in failures:
			push_error(failure)
		quit(1)


func verify_no_save_and_return_paths() -> void:
	var shell = await _shell()
	var continue_button: Button = shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleActions/TitleContinue")
	var new_game: Button = shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleActions/TitleNewGame")
	expect(continue_button.disabled, "Continue is disabled when no save exists")
	expect(new_game.has_focus(), "New Game owns the initial keyboard/controller focus")
	expect(shell.get_node_or_null("TitleSafeArea/TitleLayout/TitleHeader/TitleHeaderChrome") != null, "Title uses the enamel guild header")
	expect(shell.get_node_or_null("TitleSafeArea/TitleLayout/TitleHeader/TitleGuildBanner/TitleGuildBannerChrome") != null, "Title header carries a heraldic banner")
	expect(shell.get_node_or_null("TitleSafeArea/TitleLayout/TitleCommandDock/TitleCommandDockChrome") != null, "Title actions attach to the command dock")
	expect(new_game.get_node_or_null("Chrome") != null and continue_button.get_node_or_null("Chrome") != null, "Title actions use authored icon chrome")
	expect(shell.get_node("TitleSafeArea/TitleLayout/TitleTools/TitleSettings").get_node_or_null("Chrome") != null, "Title utility controls use the ivory tool treatment")
	expect(not shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleContinueReason").text.is_empty(), "disabled Continue has a visible reason")
	shell.open_new_game_boundary()
	await process_frame
	expect("DEV-2" in shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleNotice").text, "New Game names the frozen DEV-2 boundary without changing a save")
	shell.show_settings_placeholder()
	await process_frame
	expect(shell.current_screen == "settings", "Settings opens from Title")
	shell.back_to_title()
	await process_frame
	expect(shell.current_screen == "title", "Settings returns exactly to Title")
	shell.show_credits_placeholder()
	await process_frame
	shell.back_to_title()
	await process_frame
	expect(shell.current_screen == "title", "Credits returns exactly to Title")
	shell.request_exit()
	await process_frame
	expect(shell.current_screen == "exit_review" and shell.get_node_or_null("ChildSafeArea/ChildLayout/ExitConfirm") != null, "Back boundary uses an exit review")
	shell.queue_free()
	await process_frame


func verify_resumable_state() -> void:
	_write(SAVE_PATH, JSON.stringify({"save_kind": "aetherbound_guild_p10_3", "save_version": 9}))
	var shell = await _shell()
	var continue_button: Button = shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleActions/TitleContinue")
	expect(not continue_button.disabled, "Continue enables for a structurally valid local save")
	shell.open_continue_boundary()
	await process_frame
	expect("unchanged" in shell.get_node("TitleSafeArea/TitleLayout/TitleCopy/TitleNotice").text, "Continue preserves the save and explains the later resume review")
	shell.queue_free()
	await process_frame


func _shell():
	var shell = EntryShell.new()
	shell.auto_start = false
	root.add_child(shell)
	await process_frame
	shell.settings = SettingsStore.new().defaults()
	shell.settings.setup_completed = true
	shell.settings.locale = "en"
	shell.show_title()
	await process_frame
	return shell


func _write(path: String, text: String) -> void:
	var file := FileAccess.open(path, FileAccess.WRITE)
	file.store_string(text)
	file.close()


func _cleanup() -> void:
	for path in [SAVE_PATH, SETTINGS_PATH]:
		if FileAccess.file_exists(path):
			DirAccess.remove_absolute(path)


func expect(condition: bool, message: String) -> void:
	if not condition:
		failures.append("DEV-1 Title: %s" % message)