more lint and formatting

src/autoloads/AudioManager.gd

@@ -22,7 +22,9 @@ func _ready():
 
 	var orig_stream = _load_stream()
 	if not orig_stream:
-		DebugManager.log_error("Failed to load music stream: %s" % MUSIC_PATH, "AudioManager")
+		DebugManager.log_error(
+			"Failed to load music stream: %s" % MUSIC_PATH, "AudioManager"
+		)
 		return
 
 	var stream = orig_stream.duplicate(true) as AudioStream
@@ -52,7 +54,9 @@ func _configure_stream_loop(stream: AudioStream) -> void:
 
 func _configure_audio_bus() -> void:
 	music_player.bus = "Music"
-	music_player.volume_db = linear_to_db(SettingsManager.get_setting("music_volume"))
+	music_player.volume_db = linear_to_db(
+		SettingsManager.get_setting("music_volume")
+	)
 
 
 func update_music_volume(volume: float) -> void:

src/autoloads/DebugManager.gd

@@ -83,7 +83,9 @@ func _log_level_to_string(level: LogLevel) -> String:
 	return level_strings.get(level, "UNKNOWN")
 
 
-func _format_log_message(level: LogLevel, message: String, category: String = "") -> String:
+func _format_log_message(
+	level: LogLevel, message: String, category: String = ""
+) -> String:
 	"""Format log message with timestamp, level, category, and content"""
 	var timestamp = Time.get_datetime_string_from_system()
 	var level_str = _log_level_to_string(level)

src/autoloads/GameManager.gd

@@ -49,14 +49,17 @@ func start_game_with_mode(gameplay_mode: String) -> void:
 
 	var packed_scene := load(GAME_SCENE_PATH)
 	if not packed_scene or not packed_scene is PackedScene:
-		DebugManager.log_error("Failed to load Game scene at: %s" % GAME_SCENE_PATH, "GameManager")
+		DebugManager.log_error(
+			"Failed to load Game scene at: %s" % GAME_SCENE_PATH, "GameManager"
+		)
 		is_changing_scene = false
 		return
 
 	var result = get_tree().change_scene_to_packed(packed_scene)
 	if result != OK:
 		DebugManager.log_error(
-			"Failed to change to game scene (Error code: %d)" % result, "GameManager"
+			"Failed to change to game scene (Error code: %d)" % result,
+			"GameManager"
 		)
 		is_changing_scene = false
 		return
@@ -67,22 +70,31 @@ func start_game_with_mode(gameplay_mode: String) -> void:
 
 	# Validate scene was loaded successfully
 	if not get_tree().current_scene:
-		DebugManager.log_error("Current scene is null after scene change", "GameManager")
+		DebugManager.log_error(
+			"Current scene is null after scene change", "GameManager"
+		)
 		is_changing_scene = false
 		return
 
 	# Configure game scene with requested gameplay mode
 	if get_tree().current_scene.has_method("set_gameplay_mode"):
-		DebugManager.log_info("Setting gameplay mode to: %s" % pending_gameplay_mode, "GameManager")
+		DebugManager.log_info(
+			"Setting gameplay mode to: %s" % pending_gameplay_mode,
+			"GameManager"
+		)
 		get_tree().current_scene.set_gameplay_mode(pending_gameplay_mode)
 
 		# Load saved score
 		if get_tree().current_scene.has_method("set_global_score"):
 			var saved_score = SaveManager.get_current_score()
-			DebugManager.log_info("Loading saved score: %d" % saved_score, "GameManager")
+			DebugManager.log_info(
+				"Loading saved score: %d" % saved_score, "GameManager"
+			)
 			get_tree().current_scene.set_global_score(saved_score)
 	else:
-		DebugManager.log_error("Game scene does not have set_gameplay_mode method", "GameManager")
+		DebugManager.log_error(
+			"Game scene does not have set_gameplay_mode method", "GameManager"
+		)
 
 	is_changing_scene = false
 
@@ -91,11 +103,16 @@ func save_game() -> void:
 	"""Save current game state and score via SaveManager"""
 	# Get current score from the active game scene
 	var current_score = 0
-	if get_tree().current_scene and get_tree().current_scene.has_method("get_global_score"):
+	if (
+		get_tree().current_scene
+		and get_tree().current_scene.has_method("get_global_score")
+	):
 		current_score = get_tree().current_scene.get_global_score()
 
 	SaveManager.finish_game(current_score)
-	DebugManager.log_info("Game saved with score: %d" % current_score, "GameManager")
+	DebugManager.log_info(
+		"Game saved with score: %d" % current_score, "GameManager"
+	)
 
 
 func show_credits() -> void:
@@ -103,7 +120,8 @@ func show_credits() -> void:
 	# Prevent concurrent scene changes
 	if is_changing_scene:
 		DebugManager.log_warn(
-			"Scene change already in progress, ignoring show credits request", "GameManager"
+			"Scene change already in progress, ignoring show credits request",
+			"GameManager"
 		)
 		return
 
@@ -113,7 +131,8 @@ func show_credits() -> void:
 	var packed_scene := load(CREDITS_SCENE_PATH)
 	if not packed_scene or not packed_scene is PackedScene:
 		DebugManager.log_error(
-			"Failed to load Credits scene at: %s" % CREDITS_SCENE_PATH, "GameManager"
+			"Failed to load Credits scene at: %s" % CREDITS_SCENE_PATH,
+			"GameManager"
 		)
 		is_changing_scene = false
 		return
@@ -121,7 +140,8 @@ func show_credits() -> void:
 	var result = get_tree().change_scene_to_packed(packed_scene)
 	if result != OK:
 		DebugManager.log_error(
-			"Failed to change to credits scene (Error code: %d)" % result, "GameManager"
+			"Failed to change to credits scene (Error code: %d)" % result,
+			"GameManager"
 		)
 		is_changing_scene = false
 		return
@@ -137,8 +157,12 @@ func exit_to_main_menu() -> void:
 	"""Exit to main menu with race condition protection"""
 	# Prevent concurrent scene changes
 	if is_changing_scene:
-		DebugManager.log_warn(
-			"Scene change already in progress, ignoring exit to main menu request", "GameManager"
+		(
+			DebugManager
+			. log_warn(
+				"Scene change already in progress, ignoring exit to main menu request",
+				"GameManager"
+			)
 		)
 		return
 
@@ -147,14 +171,17 @@ func exit_to_main_menu() -> void:
 
 	var packed_scene := load(MAIN_SCENE_PATH)
 	if not packed_scene or not packed_scene is PackedScene:
-		DebugManager.log_error("Failed to load Main scene at: %s" % MAIN_SCENE_PATH, "GameManager")
+		DebugManager.log_error(
+			"Failed to load Main scene at: %s" % MAIN_SCENE_PATH, "GameManager"
+		)
 		is_changing_scene = false
 		return
 
 	var result = get_tree().change_scene_to_packed(packed_scene)
 	if result != OK:
 		DebugManager.log_error(
-			"Failed to change to main scene (Error code: %d)" % result, "GameManager"
+			"Failed to change to main scene (Error code: %d)" % result,
+			"GameManager"
 		)
 		is_changing_scene = false
 		return
@@ -170,25 +197,33 @@ func _validate_game_mode_request(gameplay_mode: String) -> bool:
 	"""Validate gameplay mode request with combined checks"""
 	# Input validation
 	if not gameplay_mode or gameplay_mode.is_empty():
-		DebugManager.log_error("Empty or null gameplay mode provided", "GameManager")
+		DebugManager.log_error(
+			"Empty or null gameplay mode provided", "GameManager"
+		)
 		return false
 
 	if not gameplay_mode is String:
 		DebugManager.log_error(
-			"Invalid gameplay mode type: " + str(typeof(gameplay_mode)), "GameManager"
+			"Invalid gameplay mode type: " + str(typeof(gameplay_mode)),
+			"GameManager"
 		)
 		return false
 
 	# Prevent concurrent scene changes (race condition protection)
 	if is_changing_scene:
-		DebugManager.log_warn("Scene change already in progress, ignoring request", "GameManager")
+		DebugManager.log_warn(
+			"Scene change already in progress, ignoring request", "GameManager"
+		)
 		return false
 
 	# Validate gameplay mode
 	var valid_modes = ["match3", "clickomania"]
 	if not gameplay_mode in valid_modes:
 		DebugManager.log_error(
-			"Invalid gameplay mode: '%s'. Valid modes: %s" % [gameplay_mode, str(valid_modes)],
+			(
+				"Invalid gameplay mode: '%s'. Valid modes: %s"
+				% [gameplay_mode, str(valid_modes)]
+			),
 			"GameManager"
 		)
 		return false

src/autoloads/SaveManager.gd

@@ -42,7 +42,9 @@ func save_game() -> bool:
 	"""Save current game data with race condition protection and error handling"""
 	# Prevent concurrent saves
 	if _save_in_progress:
-		DebugManager.log_warn("Save already in progress, skipping", "SaveManager")
+		DebugManager.log_warn(
+			"Save already in progress, skipping", "SaveManager"
+		)
 		return false
 
 	_save_in_progress = true
@@ -61,10 +63,13 @@ func _perform_save() -> bool:
 	# Calculate checksum excluding _checksum field
 	save_data["_checksum"] = _calculate_checksum(save_data)
 
-	var save_file: FileAccess = FileAccess.open(SAVE_FILE_PATH, FileAccess.WRITE)
+	var save_file: FileAccess = FileAccess.open(
+		SAVE_FILE_PATH, FileAccess.WRITE
+	)
 	if save_file == null:
 		DebugManager.log_error(
-			"Failed to open save file for writing: %s" % SAVE_FILE_PATH, "SaveManager"
+			"Failed to open save file for writing: %s" % SAVE_FILE_PATH,
+			"SaveManager"
 		)
 		return false
 
@@ -72,7 +77,9 @@ func _perform_save() -> bool:
 
 	# Validate JSON creation
 	if json_string.is_empty():
-		DebugManager.log_error("Failed to serialize save data to JSON", "SaveManager")
+		DebugManager.log_error(
+			"Failed to serialize save data to JSON", "SaveManager"
+		)
 		save_file.close()
 		return false
 
@@ -92,7 +99,9 @@ func _perform_save() -> bool:
 func load_game() -> void:
 	"""Load game data from disk with comprehensive validation and error recovery"""
 	if not FileAccess.file_exists(SAVE_FILE_PATH):
-		DebugManager.log_info("No save file found, using defaults", "SaveManager")
+		DebugManager.log_info(
+			"No save file found, using defaults", "SaveManager"
+		)
 		return
 
 	# Reset restore flag
@@ -111,7 +120,8 @@ func _load_and_parse_save_file() -> Variant:
 	var save_file: FileAccess = FileAccess.open(SAVE_FILE_PATH, FileAccess.READ)
 	if save_file == null:
 		DebugManager.log_error(
-			"Failed to open save file for reading: %s" % SAVE_FILE_PATH, "SaveManager"
+			"Failed to open save file for reading: %s" % SAVE_FILE_PATH,
+			"SaveManager"
 		)
 		return null
 
@@ -119,7 +129,11 @@ func _load_and_parse_save_file() -> Variant:
 	var file_size: int = save_file.get_length()
 	if file_size > MAX_FILE_SIZE:
 		DebugManager.log_error(
-			"Save file too large: %d bytes (max %d)" % [file_size, MAX_FILE_SIZE], "SaveManager"
+			(
+				"Save file too large: %d bytes (max %d)"
+				% [file_size, MAX_FILE_SIZE]
+			),
+			"SaveManager"
 		)
 		save_file.close()
 		return null
@@ -128,21 +142,26 @@ func _load_and_parse_save_file() -> Variant:
 	save_file.close()
 
 	if not json_string is String:
-		DebugManager.log_error("Save file contains invalid data type", "SaveManager")
+		DebugManager.log_error(
+			"Save file contains invalid data type", "SaveManager"
+		)
 		return null
 
 	var json: JSON = JSON.new()
 	var parse_result: Error = json.parse(json_string)
 	if parse_result != OK:
 		DebugManager.log_error(
-			"Failed to parse save file JSON: %s" % json.error_string, "SaveManager"
+			"Failed to parse save file JSON: %s" % json.error_string,
+			"SaveManager"
 		)
 		_handle_load_failure("JSON parse failed")
 		return null
 
 	var loaded_data: Variant = json.data
 	if not loaded_data is Dictionary:
-		DebugManager.log_error("Save file root is not a dictionary", "SaveManager")
+		DebugManager.log_error(
+			"Save file root is not a dictionary", "SaveManager"
+		)
 		_handle_load_failure("Invalid data format")
 		return null
 
@@ -154,7 +173,8 @@ func _process_loaded_data(loaded_data: Variant) -> void:
 	# Validate checksum first
 	if not _validate_checksum(loaded_data):
 		DebugManager.log_error(
-			"Save file checksum validation failed - possible tampering", "SaveManager"
+			"Save file checksum validation failed - possible tampering",
+			"SaveManager"
 		)
 		_handle_load_failure("Checksum validation failed")
 		return
@@ -162,14 +182,17 @@ func _process_loaded_data(loaded_data: Variant) -> void:
 	# Handle version migration
 	var migrated_data: Variant = _handle_version_migration(loaded_data)
 	if migrated_data == null:
-		DebugManager.log_error("Save file version migration failed", "SaveManager")
+		DebugManager.log_error(
+			"Save file version migration failed", "SaveManager"
+		)
 		_handle_load_failure("Migration failed")
 		return
 
 	# Validate and fix loaded data
 	if not _validate_and_fix_save_data(migrated_data):
 		DebugManager.log_error(
-			"Save file failed validation after migration, using defaults", "SaveManager"
+			"Save file failed validation after migration, using defaults",
+			"SaveManager"
 		)
 		_handle_load_failure("Validation failed")
 		return
@@ -184,7 +207,8 @@ func _handle_load_failure(reason: String) -> void:
 		var backup_restored = _restore_backup_if_exists()
 		if not backup_restored:
 			DebugManager.log_warn(
-				"%s and backup restore failed, using defaults" % reason, "SaveManager"
+				"%s and backup restore failed, using defaults" % reason,
+				"SaveManager"
 			)
 
 	DebugManager.log_info(
@@ -199,11 +223,14 @@ func _handle_load_failure(reason: String) -> void:
 func update_current_score(score: int) -> void:
 	# Input validation
 	if score < 0:
-		DebugManager.log_warn("Negative score rejected: %d" % score, "SaveManager")
+		DebugManager.log_warn(
+			"Negative score rejected: %d" % score, "SaveManager"
+		)
 		return
 	if score > MAX_SCORE:
 		DebugManager.log_warn(
-			"Score too high, capping at maximum: %d -> %d" % [score, MAX_SCORE], "SaveManager"
+			"Score too high, capping at maximum: %d -> %d" % [score, MAX_SCORE],
+			"SaveManager"
 		)
 		score = MAX_SCORE
 
@@ -219,23 +246,33 @@ func start_new_game() -> void:
 	# Clear saved grid state
 	game_data.grid_state.grid_layout = []
 	DebugManager.log_info(
-		"Started new game #%d (cleared grid state)" % game_data.games_played, "SaveManager"
+		"Started new game #%d (cleared grid state)" % game_data.games_played,
+		"SaveManager"
 	)
 
 
 func finish_game(final_score: int) -> void:
 	# Input validation
 	if final_score < 0:
-		DebugManager.log_warn("Negative final score rejected: %d" % final_score, "SaveManager")
+		DebugManager.log_warn(
+			"Negative final score rejected: %d" % final_score, "SaveManager"
+		)
 		return
 	if final_score > MAX_SCORE:
 		DebugManager.log_warn(
-			"Final score too high, capping: %d -> %d" % [final_score, MAX_SCORE], "SaveManager"
+			(
+				"Final score too high, capping: %d -> %d"
+				% [final_score, MAX_SCORE]
+			),
+			"SaveManager"
 		)
 		final_score = MAX_SCORE
 
 	DebugManager.log_info(
-		"Finishing game with score: %d (previous: %d)" % [final_score, game_data.current_score],
+		(
+			"Finishing game with score: %d (previous: %d)"
+			% [final_score, game_data.current_score]
+		),
 		"SaveManager"
 	)
 	game_data.current_score = final_score
@@ -250,7 +287,9 @@ func finish_game(final_score: int) -> void:
 
 	if final_score > game_data.high_score:
 		game_data.high_score = final_score
-		DebugManager.log_info("New high score achieved: %d" % final_score, "SaveManager")
+		DebugManager.log_info(
+			"New high score achieved: %d" % final_score, "SaveManager"
+		)
 	save_game()
 
 
@@ -271,11 +310,18 @@ func get_total_score() -> int:
 
 
 func save_grid_state(
-	grid_size: Vector2i, tile_types_count: int, active_gem_types: Array, grid_layout: Array
+	grid_size: Vector2i,
+	tile_types_count: int,
+	active_gem_types: Array,
+	grid_layout: Array
 ) -> void:
 	# Input validation
-	if not _validate_grid_parameters(grid_size, tile_types_count, active_gem_types, grid_layout):
-		DebugManager.log_error("Grid state validation failed, not saving", "SaveManager")
+	if not _validate_grid_parameters(
+		grid_size, tile_types_count, active_gem_types, grid_layout
+	):
+		DebugManager.log_error(
+			"Grid state validation failed, not saving", "SaveManager"
+		)
 		return
 
 	DebugManager.log_info(
@@ -338,10 +384,13 @@ func reset_all_progress() -> bool:
 	if FileAccess.file_exists(SAVE_FILE_PATH):
 		var error: Error = DirAccess.remove_absolute(SAVE_FILE_PATH)
 		if error == OK:
-			DebugManager.log_info("Main save file deleted successfully", "SaveManager")
+			DebugManager.log_info(
+				"Main save file deleted successfully", "SaveManager"
+			)
 		else:
 			DebugManager.log_error(
-				"Failed to delete main save file: error %d" % error, "SaveManager"
+				"Failed to delete main save file: error %d" % error,
+				"SaveManager"
 			)
 
 	# Delete backup file
@@ -349,21 +398,27 @@ func reset_all_progress() -> bool:
 	if FileAccess.file_exists(backup_path):
 		var error: Error = DirAccess.remove_absolute(backup_path)
 		if error == OK:
-			DebugManager.log_info("Backup save file deleted successfully", "SaveManager")
+			DebugManager.log_info(
+				"Backup save file deleted successfully", "SaveManager"
+			)
 		else:
 			DebugManager.log_error(
-				"Failed to delete backup save file: error %d" % error, "SaveManager"
+				"Failed to delete backup save file: error %d" % error,
+				"SaveManager"
 			)
 
 	DebugManager.log_info(
-		"Progress reset completed - all scores and save data cleared", "SaveManager"
+		"Progress reset completed - all scores and save data cleared",
+		"SaveManager"
 	)
 
 	# Clear restore flag
 	_restore_in_progress = false
 
 	# Create fresh save file with default data
-	DebugManager.log_info("Creating fresh save file with default data", "SaveManager")
+	DebugManager.log_info(
+		"Creating fresh save file with default data", "SaveManager"
+	)
 	save_game()
 
 	return true
@@ -395,11 +450,17 @@ func _validate_save_data(data: Dictionary) -> bool:
 func _validate_required_fields(data: Dictionary) -> bool:
 	"""Validate that all required fields exist"""
 	var required_fields: Array[String] = [
-		"high_score", "current_score", "games_played", "total_score", "grid_state"
+		"high_score",
+		"current_score",
+		"games_played",
+		"total_score",
+		"grid_state"
 	]
 	for field in required_fields:
 		if not data.has(field):
-			DebugManager.log_error("Missing required field: %s" % field, "SaveManager")
+			DebugManager.log_error(
+				"Missing required field: %s" % field, "SaveManager"
+			)
 			return false
 	return true
 
@@ -409,7 +470,9 @@ func _validate_score_fields(data: Dictionary) -> bool:
 	var score_fields = ["high_score", "current_score", "total_score"]
 	for field in score_fields:
 		if not _is_valid_score(data.get(field, 0)):
-			DebugManager.log_error("Invalid %s validation failed" % field, "SaveManager")
+			DebugManager.log_error(
+				"Invalid %s validation failed" % field, "SaveManager"
+			)
 			return false
 	return true
 
@@ -419,7 +482,10 @@ func _validate_games_played_field(data: Dictionary) -> bool:
 	var games_played: Variant = data.get("games_played", 0)
 	if not (games_played is int or games_played is float):
 		DebugManager.log_error(
-			"Invalid games_played type: %s (type: %s)" % [str(games_played), typeof(games_played)],
+			(
+				"Invalid games_played type: %s (type: %s)"
+				% [str(games_played), typeof(games_played)]
+			),
 			"SaveManager"
 		)
 		return false
@@ -427,14 +493,18 @@ func _validate_games_played_field(data: Dictionary) -> bool:
 	# Check for NaN/Infinity in games_played if it's a float
 	if games_played is float and (is_nan(games_played) or is_inf(games_played)):
 		DebugManager.log_error(
-			"Invalid games_played float value: %s" % str(games_played), "SaveManager"
+			"Invalid games_played float value: %s" % str(games_played),
+			"SaveManager"
 		)
 		return false
 
 	var games_played_int: int = int(games_played)
 	if games_played_int < 0 or games_played_int > MAX_GAMES_PLAYED:
 		DebugManager.log_error(
-			"Invalid games_played value: %d (range: 0-%d)" % [games_played_int, MAX_GAMES_PLAYED],
+			(
+				"Invalid games_played value: %d (range: 0-%d)"
+				% [games_played_int, MAX_GAMES_PLAYED]
+			),
 			"SaveManager"
 		)
 		return false
@@ -447,16 +517,23 @@ func _validate_and_fix_save_data(data: Dictionary) -> bool:
 	Permissive validation that fixes issues instead of rejecting data entirely.
 	Used during migration to preserve as much user data as possible.
 	"""
-	DebugManager.log_info("Running permissive validation with auto-fix", "SaveManager")
+	DebugManager.log_info(
+		"Running permissive validation with auto-fix", "SaveManager"
+	)
 
 	# Ensure all required fields exist, create defaults if missing
 	var required_fields: Array[String] = [
-		"high_score", "current_score", "games_played", "total_score", "grid_state"
+		"high_score",
+		"current_score",
+		"games_played",
+		"total_score",
+		"grid_state"
 	]
 	for field in required_fields:
 		if not data.has(field):
 			DebugManager.log_warn(
-				"Missing required field '%s', adding default value" % field, "SaveManager"
+				"Missing required field '%s', adding default value" % field,
+				"SaveManager"
 			)
 			match field:
 				"high_score", "current_score", "total_score":
@@ -475,15 +552,21 @@ func _validate_and_fix_save_data(data: Dictionary) -> bool:
 	for field in ["high_score", "current_score", "total_score"]:
 		var value: Variant = data.get(field, 0)
 		if not (value is int or value is float):
-			DebugManager.log_warn("Invalid type for %s, converting to 0" % field, "SaveManager")
+			DebugManager.log_warn(
+				"Invalid type for %s, converting to 0" % field, "SaveManager"
+			)
 			data[field] = 0
 		else:
 			var numeric_value: int = int(value)
 			if numeric_value < 0:
-				DebugManager.log_warn("Negative %s fixed to 0" % field, "SaveManager")
+				DebugManager.log_warn(
+					"Negative %s fixed to 0" % field, "SaveManager"
+				)
 				data[field] = 0
 			elif numeric_value > MAX_SCORE:
-				DebugManager.log_warn("%s too high, clamped to maximum" % field, "SaveManager")
+				DebugManager.log_warn(
+					"%s too high, clamped to maximum" % field, "SaveManager"
+				)
 				data[field] = MAX_SCORE
 			else:
 				data[field] = numeric_value
@@ -491,7 +574,9 @@ func _validate_and_fix_save_data(data: Dictionary) -> bool:
 	# Fix games_played
 	var games_played: Variant = data.get("games_played", 0)
 	if not (games_played is int or games_played is float):
-		DebugManager.log_warn("Invalid games_played type, converting to 0", "SaveManager")
+		DebugManager.log_warn(
+			"Invalid games_played type, converting to 0", "SaveManager"
+		)
 		data["games_played"] = 0
 	else:
 		var games_played_int: int = int(games_played)
@@ -505,7 +590,9 @@ func _validate_and_fix_save_data(data: Dictionary) -> bool:
 	# Fix grid_state - ensure it exists and has basic structure
 	var grid_state: Variant = data.get("grid_state", {})
 	if not grid_state is Dictionary:
-		DebugManager.log_warn("Invalid grid_state, creating default", "SaveManager")
+		DebugManager.log_warn(
+			"Invalid grid_state, creating default", "SaveManager"
+		)
 		data["grid_state"] = {
 			"grid_size": {"x": 8, "y": 8},
 			"tile_types_count": 5,
@@ -514,24 +601,48 @@ func _validate_and_fix_save_data(data: Dictionary) -> bool:
 		}
 	else:
 		# Fix grid_state fields if they're missing or invalid
-		if not grid_state.has("grid_size") or not grid_state.grid_size is Dictionary:
-			DebugManager.log_warn("Invalid grid_size, using default", "SaveManager")
+		if (
+			not grid_state.has("grid_size")
+			or not grid_state.grid_size is Dictionary
+		):
+			DebugManager.log_warn(
+				"Invalid grid_size, using default", "SaveManager"
+			)
 			grid_state["grid_size"] = {"x": 8, "y": 8}
 
-		if not grid_state.has("tile_types_count") or not grid_state.tile_types_count is int:
-			DebugManager.log_warn("Invalid tile_types_count, using default", "SaveManager")
+		if (
+			not grid_state.has("tile_types_count")
+			or not grid_state.tile_types_count is int
+		):
+			DebugManager.log_warn(
+				"Invalid tile_types_count, using default", "SaveManager"
+			)
 			grid_state["tile_types_count"] = 5
 
-		if not grid_state.has("active_gem_types") or not grid_state.active_gem_types is Array:
-			DebugManager.log_warn("Invalid active_gem_types, using default", "SaveManager")
+		if (
+			not grid_state.has("active_gem_types")
+			or not grid_state.active_gem_types is Array
+		):
+			DebugManager.log_warn(
+				"Invalid active_gem_types, using default", "SaveManager"
+			)
 			grid_state["active_gem_types"] = [0, 1, 2, 3, 4]
 
-		if not grid_state.has("grid_layout") or not grid_state.grid_layout is Array:
-			DebugManager.log_warn("Invalid grid_layout, clearing saved grid", "SaveManager")
+		if (
+			not grid_state.has("grid_layout")
+			or not grid_state.grid_layout is Array
+		):
+			DebugManager.log_warn(
+				"Invalid grid_layout, clearing saved grid", "SaveManager"
+			)
 			grid_state["grid_layout"] = []
 
-	DebugManager.log_info(
-		"Permissive validation completed - data has been fixed and will be loaded", "SaveManager"
+	(
+		DebugManager
+		. log_info(
+			"Permissive validation completed - data has been fixed and will be loaded",
+			"SaveManager"
+		)
 	)
 	return true
 
@@ -569,7 +680,10 @@ func _validate_grid_size(grid_state: Dictionary) -> Dictionary:
 	"""Validate grid size and return validation result with dimensions"""
 	var result = {"valid": false, "width": 0, "height": 0}
 
-	if not grid_state.has("grid_size") or not grid_state.grid_size is Dictionary:
+	if (
+		not grid_state.has("grid_size")
+		or not grid_state.grid_size is Dictionary
+	):
 		DebugManager.log_error("Invalid grid_size in save data", "SaveManager")
 		return result
 
@@ -581,8 +695,15 @@ func _validate_grid_size(grid_state: Dictionary) -> Dictionary:
 	var height: Variant = size.y
 	if not width is int or not height is int:
 		return result
-	if width < 3 or height < 3 or width > MAX_GRID_SIZE or height > MAX_GRID_SIZE:
-		DebugManager.log_error("Grid size out of bounds: %dx%d" % [width, height], "SaveManager")
+	if (
+		width < 3
+		or height < 3
+		or width > MAX_GRID_SIZE
+		or height > MAX_GRID_SIZE
+	):
+		DebugManager.log_error(
+			"Grid size out of bounds: %dx%d" % [width, height], "SaveManager"
+		)
 		return result
 
 	result.valid = true
@@ -595,16 +716,22 @@ func _validate_tile_types(grid_state: Dictionary) -> int:
 	"""Validate tile types count and return it, or -1 if invalid"""
 	var tile_types: Variant = grid_state.get("tile_types_count", 0)
 	if not tile_types is int or tile_types < 3 or tile_types > MAX_TILE_TYPES:
-		DebugManager.log_error("Invalid tile_types_count: %s" % str(tile_types), "SaveManager")
+		DebugManager.log_error(
+			"Invalid tile_types_count: %s" % str(tile_types), "SaveManager"
+		)
 		return -1
 	return tile_types
 
 
-func _validate_active_gem_types(grid_state: Dictionary, tile_types: int) -> bool:
+func _validate_active_gem_types(
+	grid_state: Dictionary, tile_types: int
+) -> bool:
 	"""Validate active gem types array"""
 	var active_gems: Variant = grid_state.get("active_gem_types", [])
 	if not active_gems is Array:
-		DebugManager.log_error("active_gem_types is not an array", "SaveManager")
+		DebugManager.log_error(
+			"active_gem_types is not an array", "SaveManager"
+		)
 		return false
 
 	# If active_gem_types exists, validate its contents
@@ -613,12 +740,17 @@ func _validate_active_gem_types(grid_state: Dictionary, tile_types: int) -> bool
 			var gem_type: Variant = active_gems[i]
 			if not gem_type is int:
 				DebugManager.log_error(
-					"active_gem_types[%d] is not an integer: %s" % [i, str(gem_type)], "SaveManager"
+					(
+						"active_gem_types[%d] is not an integer: %s"
+						% [i, str(gem_type)]
+					),
+					"SaveManager"
 				)
 				return false
 			if gem_type < 0 or gem_type >= tile_types:
 				DebugManager.log_error(
-					"active_gem_types[%d] out of range: %d" % [i, gem_type], "SaveManager"
+					"active_gem_types[%d] out of range: %d" % [i, gem_type],
+					"SaveManager"
 				)
 				return false
 	return true
@@ -629,7 +761,10 @@ func _validate_grid_layout(
 ) -> bool:
 	if layout.size() != expected_height:
 		DebugManager.log_error(
-			"Grid layout height mismatch: %d vs %d" % [layout.size(), expected_height],
+			(
+				"Grid layout height mismatch: %d vs %d"
+				% [layout.size(), expected_height]
+			),
 			"SaveManager"
 		)
 		return false
@@ -637,11 +772,16 @@ func _validate_grid_layout(
 	for y in range(layout.size()):
 		var row: Variant = layout[y]
 		if not row is Array:
-			DebugManager.log_error("Grid layout row %d is not an array" % y, "SaveManager")
+			DebugManager.log_error(
+				"Grid layout row %d is not an array" % y, "SaveManager"
+			)
 			return false
 		if row.size() != expected_width:
 			DebugManager.log_error(
-				"Grid layout row %d width mismatch: %d vs %d" % [y, row.size(), expected_width],
+				(
+					"Grid layout row %d width mismatch: %d vs %d"
+					% [y, row.size(), expected_width]
+				),
 				"SaveManager"
 			)
 			return false
@@ -650,13 +790,20 @@ func _validate_grid_layout(
 			var tile_type: Variant = row[x]
 			if not tile_type is int:
 				DebugManager.log_error(
-					"Grid tile [%d][%d] is not an integer: %s" % [y, x, str(tile_type)],
+					(
+						"Grid tile [%d][%d] is not an integer: %s"
+						% [y, x, str(tile_type)]
+					),
 					"SaveManager"
 				)
 				return false
 			if tile_type < -1 or tile_type >= max_tile_type:
 				DebugManager.log_error(
-					"Grid tile [%d][%d] type out of range: %d" % [y, x, tile_type], "SaveManager"
+					(
+						"Grid tile [%d][%d] type out of range: %d"
+						% [y, x, tile_type]
+					),
+					"SaveManager"
 				)
 				return false
 
@@ -664,7 +811,10 @@ func _validate_grid_layout(
 
 
 func _validate_grid_parameters(
-	grid_size: Vector2i, tile_types_count: int, active_gem_types: Array, grid_layout: Array
+	grid_size: Vector2i,
+	tile_types_count: int,
+	active_gem_types: Array,
+	grid_layout: Array
 ) -> bool:
 	# Validate grid size
 	if (
@@ -685,7 +835,10 @@ func _validate_grid_parameters(
 	# Validate tile types count
 	if tile_types_count < 3 or tile_types_count > MAX_TILE_TYPES:
 		DebugManager.log_error(
-			"Invalid tile types count: %d (min 3, max %d)" % [tile_types_count, MAX_TILE_TYPES],
+			(
+				"Invalid tile types count: %d (min 3, max %d)"
+				% [tile_types_count, MAX_TILE_TYPES]
+			),
 			"SaveManager"
 		)
 		return false
@@ -702,14 +855,20 @@ func _validate_grid_parameters(
 		return false
 
 	# Validate grid layout
-	return _validate_grid_layout(grid_layout, grid_size.x, grid_size.y, tile_types_count)
+	return _validate_grid_layout(
+		grid_layout, grid_size.x, grid_size.y, tile_types_count
+	)
 
 
 func _is_valid_score(score: Variant) -> bool:
 	# Accept both int and float, but convert to int for validation
 	if not (score is int or score is float):
 		DebugManager.log_error(
-			"Score is not a number: %s (type: %s)" % [str(score), typeof(score)], "SaveManager"
+			(
+				"Score is not a number: %s (type: %s)"
+				% [str(score), typeof(score)]
+			),
+			"SaveManager"
 		)
 		return false
 
@@ -717,13 +876,16 @@ func _is_valid_score(score: Variant) -> bool:
 	if score is float:
 		if is_nan(score) or is_inf(score):
 			DebugManager.log_error(
-				"Score contains invalid float value (NaN/Inf): %s" % str(score), "SaveManager"
+				"Score contains invalid float value (NaN/Inf): %s" % str(score),
+				"SaveManager"
 			)
 			return false
 
 	var score_int = int(score)
 	if score_int < 0 or score_int > MAX_SCORE:
-		DebugManager.log_error("Score out of bounds: %d" % score_int, "SaveManager")
+		DebugManager.log_error(
+			"Score out of bounds: %d" % score_int, "SaveManager"
+		)
 		return false
 	return true
 
@@ -737,12 +899,16 @@ func _merge_validated_data(loaded_data: Dictionary) -> void:
 
 	# Games played should always be an integer
 	if loaded_data.has("games_played"):
-		game_data["games_played"] = _safe_get_numeric_value(loaded_data, "games_played", 0)
+		game_data["games_played"] = _safe_get_numeric_value(
+			loaded_data, "games_played", 0
+		)
 
 	# Merge grid state carefully
 	var loaded_grid: Variant = loaded_data.get("grid_state", {})
 	if loaded_grid is Dictionary:
-		for grid_key in ["grid_size", "tile_types_count", "active_gem_types", "grid_layout"]:
+		for grid_key in [
+			"grid_size", "tile_types_count", "active_gem_types", "grid_layout"
+		]:
 			if loaded_grid.has(grid_key):
 				game_data.grid_state[grid_key] = loaded_grid[grid_key]
 
@@ -844,15 +1010,22 @@ func _validate_checksum(data: Dictionary) -> bool:
 		# Try to be more lenient with existing saves to prevent data loss
 		var data_version: Variant = data.get("_version", 0)
 		if data_version <= 1:
-			DebugManager.log_warn(
-				(
-					"Checksum mismatch in v%d save file - may be due to JSON serialization issue "
-					+ (
-						"(stored: %s, calculated: %s)"
-						% [data_version, stored_checksum, calculated_checksum]
-					)
-				),
-				"SaveManager"
+			(
+				DebugManager
+				. log_warn(
+					(
+						"Checksum mismatch in v%d save file - may be due to JSON serialization issue "
+						+ (
+							"(stored: %s, calculated: %s)"
+							% [
+								data_version,
+								stored_checksum,
+								calculated_checksum
+							]
+						)
+					),
+					"SaveManager"
+				)
 			)
 			(
 				DebugManager
@@ -876,7 +1049,9 @@ func _validate_checksum(data: Dictionary) -> bool:
 	return is_valid
 
 
-func _safe_get_numeric_value(data: Dictionary, key: String, default_value: float) -> int:
+func _safe_get_numeric_value(
+	data: Dictionary, key: String, default_value: float
+) -> int:
 	"""Safely extract and convert numeric values with comprehensive validation"""
 	var value: Variant = data.get(key, default_value)
 
@@ -910,13 +1085,15 @@ func _safe_get_numeric_value(data: Dictionary, key: String, default_value: float
 	if key in ["high_score", "current_score", "total_score"]:
 		if int_value < 0 or int_value > MAX_SCORE:
 			DebugManager.log_warn(
-				"Score %s out of bounds: %d, using default" % [key, int_value], "SaveManager"
+				"Score %s out of bounds: %d, using default" % [key, int_value],
+				"SaveManager"
 			)
 			return int(default_value)
 	elif key == "games_played":
 		if int_value < 0 or int_value > MAX_GAMES_PLAYED:
 			DebugManager.log_warn(
-				"Games played out of bounds: %d, using default" % int_value, "SaveManager"
+				"Games played out of bounds: %d, using default" % int_value,
+				"SaveManager"
 			)
 			return int(default_value)
 
@@ -930,7 +1107,8 @@ func _handle_version_migration(data: Dictionary) -> Variant:
 	if data_version == SAVE_FORMAT_VERSION:
 		# Current version, no migration needed
 		DebugManager.log_info(
-			"Save file is current version (%d)" % SAVE_FORMAT_VERSION, "SaveManager"
+			"Save file is current version (%d)" % SAVE_FORMAT_VERSION,
+			"SaveManager"
 		)
 		return data
 	if data_version > SAVE_FORMAT_VERSION:
@@ -945,7 +1123,10 @@ func _handle_version_migration(data: Dictionary) -> Variant:
 		return null
 	# Older version - migrate
 	DebugManager.log_info(
-		"Migrating save data from version %d to %d" % [data_version, SAVE_FORMAT_VERSION],
+		(
+			"Migrating save data from version %d to %d"
+			% [data_version, SAVE_FORMAT_VERSION]
+		),
 		"SaveManager"
 	)
 	return _migrate_save_data(data, data_version)
@@ -960,7 +1141,9 @@ func _migrate_save_data(data: Dictionary, from_version: int) -> Dictionary:
 		# Add new fields that didn't exist in version 0
 		if not migrated_data.has("total_score"):
 			migrated_data["total_score"] = 0
-			DebugManager.log_info("Added total_score field during migration", "SaveManager")
+			DebugManager.log_info(
+				"Added total_score field during migration", "SaveManager"
+			)
 
 		if not migrated_data.has("grid_state"):
 			migrated_data["grid_state"] = {
@@ -969,7 +1152,9 @@ func _migrate_save_data(data: Dictionary, from_version: int) -> Dictionary:
 				"active_gem_types": [0, 1, 2, 3, 4],
 				"grid_layout": []
 			}
-			DebugManager.log_info("Added grid_state structure during migration", "SaveManager")
+			DebugManager.log_info(
+				"Added grid_state structure during migration", "SaveManager"
+			)
 
 		# Ensure all numeric values are within bounds after migration
 		for score_key in ["high_score", "current_score", "total_score"]:
@@ -981,11 +1166,17 @@ func _migrate_save_data(data: Dictionary, from_version: int) -> Dictionary:
 						DebugManager.log_warn(
 							(
 								"Clamping %s during migration: %d -> %d"
-								% [score_key, int_score, clamp(int_score, 0, MAX_SCORE)]
+								% [
+									score_key,
+									int_score,
+									clamp(int_score, 0, MAX_SCORE)
+								]
 							),
 							"SaveManager"
 						)
-						migrated_data[score_key] = clamp(int_score, 0, MAX_SCORE)
+						migrated_data[score_key] = clamp(
+							int_score, 0, MAX_SCORE
+						)
 
 	# Future migrations would go here
 	# if from_version < 2:
@@ -997,7 +1188,9 @@ func _migrate_save_data(data: Dictionary, from_version: int) -> Dictionary:
 	# Recalculate checksum after migration
 	migrated_data["_checksum"] = _calculate_checksum(migrated_data)
 
-	DebugManager.log_info("Save data migration completed successfully", "SaveManager")
+	DebugManager.log_info(
+		"Save data migration completed successfully", "SaveManager"
+	)
 	return migrated_data
 
 
@@ -1005,7 +1198,9 @@ func _create_backup() -> void:
 	# Create backup of current save file
 	if FileAccess.file_exists(SAVE_FILE_PATH):
 		var backup_path: String = SAVE_FILE_PATH + ".backup"
-		var original: FileAccess = FileAccess.open(SAVE_FILE_PATH, FileAccess.READ)
+		var original: FileAccess = FileAccess.open(
+			SAVE_FILE_PATH, FileAccess.READ
+		)
 		var backup: FileAccess = FileAccess.open(backup_path, FileAccess.WRITE)
 		if original and backup:
 			backup.store_var(original.get_var())
@@ -1017,7 +1212,9 @@ func _create_backup() -> void:
 func _restore_backup_if_exists() -> bool:
 	var backup_path: String = SAVE_FILE_PATH + ".backup"
 	if not FileAccess.file_exists(backup_path):
-		DebugManager.log_warn("No backup file found for recovery", "SaveManager")
+		DebugManager.log_warn(
+			"No backup file found for recovery", "SaveManager"
+		)
 		return false
 
 	DebugManager.log_info("Attempting to restore from backup", "SaveManager")
@@ -1025,12 +1222,16 @@ func _restore_backup_if_exists() -> bool:
 	# Validate backup file size before attempting restore
 	var backup_file: FileAccess = FileAccess.open(backup_path, FileAccess.READ)
 	if backup_file == null:
-		DebugManager.log_error("Failed to open backup file for reading", "SaveManager")
+		DebugManager.log_error(
+			"Failed to open backup file for reading", "SaveManager"
+		)
 		return false
 
 	var backup_size: int = backup_file.get_length()
 	if backup_size > MAX_FILE_SIZE:
-		DebugManager.log_error("Backup file too large: %d bytes" % backup_size, "SaveManager")
+		DebugManager.log_error(
+			"Backup file too large: %d bytes" % backup_size, "SaveManager"
+		)
 		backup_file.close()
 		return false
 
@@ -1045,13 +1246,17 @@ func _restore_backup_if_exists() -> bool:
 	# Create new save file from backup
 	var original: FileAccess = FileAccess.open(SAVE_FILE_PATH, FileAccess.WRITE)
 	if original == null:
-		DebugManager.log_error("Failed to create new save file from backup", "SaveManager")
+		DebugManager.log_error(
+			"Failed to create new save file from backup", "SaveManager"
+		)
 		return false
 
 	original.store_var(backup_data)
 	original.close()
 
-	DebugManager.log_info("Backup restored successfully to main save file", "SaveManager")
+	DebugManager.log_info(
+		"Backup restored successfully to main save file", "SaveManager"
+	)
 	# Note: The restored file will be loaded on the next game restart
 	# We don't recursively load here to prevent infinite loops
 	return true

src/autoloads/SettingsManager.gd

@@ -10,7 +10,10 @@ const MAX_SETTING_STRING_LENGTH = 10  # Max length for string settings like lang
 var settings: Dictionary = {}
 
 var default_settings: Dictionary = {
-	"master_volume": 0.50, "music_volume": 0.40, "sfx_volume": 0.50, "language": "en"
+	"master_volume": 0.50,
+	"music_volume": 0.40,
+	"sfx_volume": 0.50,
+	"language": "en"
 }
 
 var languages_data: Dictionary = {}
@@ -32,7 +35,9 @@ func load_settings() -> void:
 
 	if load_result == OK:
 		for key in default_settings.keys():
-			var loaded_value = config.get_value("settings", key, default_settings[key])
+			var loaded_value = config.get_value(
+				"settings", key, default_settings[key]
+			)
 			# Validate loaded settings before applying
 			if _validate_setting_value(key, loaded_value):
 				settings[key] = loaded_value
@@ -45,10 +50,15 @@ func load_settings() -> void:
 					"SettingsManager"
 				)
 				settings[key] = default_settings[key]
-		DebugManager.log_info("Settings loaded: " + str(settings), "SettingsManager")
+		DebugManager.log_info(
+			"Settings loaded: " + str(settings), "SettingsManager"
+		)
 	else:
 		DebugManager.log_warn(
-			"No settings file found (Error code: %d), using defaults" % load_result,
+			(
+				"No settings file found (Error code: %d), using defaults"
+				% load_result
+			),
 			"SettingsManager"
 		)
 		settings = default_settings.duplicate()
@@ -58,7 +68,9 @@ func load_settings() -> void:
 
 
 func _apply_all_settings():
-	DebugManager.log_info("Applying settings: " + str(settings), "SettingsManager")
+	DebugManager.log_info(
+		"Applying settings: " + str(settings), "SettingsManager"
+	)
 
 	# Apply language setting
 	if "language" in settings:
@@ -70,24 +82,33 @@ func _apply_all_settings():
 	var sfx_bus = AudioServer.get_bus_index("SFX")
 
 	if master_bus >= 0 and "master_volume" in settings:
-		AudioServer.set_bus_volume_db(master_bus, linear_to_db(settings["master_volume"]))
+		AudioServer.set_bus_volume_db(
+			master_bus, linear_to_db(settings["master_volume"])
+		)
 	else:
 		DebugManager.log_warn(
-			"Master audio bus not found or master_volume setting missing", "SettingsManager"
+			"Master audio bus not found or master_volume setting missing",
+			"SettingsManager"
 		)
 
 	if music_bus >= 0 and "music_volume" in settings:
-		AudioServer.set_bus_volume_db(music_bus, linear_to_db(settings["music_volume"]))
+		AudioServer.set_bus_volume_db(
+			music_bus, linear_to_db(settings["music_volume"])
+		)
 	else:
 		DebugManager.log_warn(
-			"Music audio bus not found or music_volume setting missing", "SettingsManager"
+			"Music audio bus not found or music_volume setting missing",
+			"SettingsManager"
 		)
 
 	if sfx_bus >= 0 and "sfx_volume" in settings:
-		AudioServer.set_bus_volume_db(sfx_bus, linear_to_db(settings["sfx_volume"]))
+		AudioServer.set_bus_volume_db(
+			sfx_bus, linear_to_db(settings["sfx_volume"])
+		)
 	else:
 		DebugManager.log_warn(
-			"SFX audio bus not found or sfx_volume setting missing", "SettingsManager"
+			"SFX audio bus not found or sfx_volume setting missing",
+			"SettingsManager"
 		)
 
 
@@ -99,7 +120,8 @@ func save_settings():
 	var save_result = config.save(SETTINGS_FILE)
 	if save_result != OK:
 		DebugManager.log_error(
-			"Failed to save settings (Error code: %d)" % save_result, "SettingsManager"
+			"Failed to save settings (Error code: %d)" % save_result,
+			"SettingsManager"
 		)
 		return false
 
@@ -119,7 +141,8 @@ func set_setting(key: String, value) -> bool:
 	# Validate value type and range based on key
 	if not _validate_setting_value(key, value):
 		DebugManager.log_error(
-			"Invalid value for setting '%s': %s" % [key, str(value)], "SettingsManager"
+			"Invalid value for setting '%s': %s" % [key, str(value)],
+			"SettingsManager"
 		)
 		return false
 
@@ -157,7 +180,8 @@ func _validate_volume_setting(key: String, value) -> bool:
 	# Check for NaN and infinity
 	if is_nan(float_value) or is_inf(float_value):
 		DebugManager.log_warn(
-			"Invalid float value for %s: %s" % [key, str(value)], "SettingsManager"
+			"Invalid float value for %s: %s" % [key, str(value)],
+			"SettingsManager"
 		)
 		return false
 	# Range validation
@@ -170,7 +194,8 @@ func _validate_language_setting(value) -> bool:
 	# Prevent extremely long strings
 	if value.length() > MAX_SETTING_STRING_LENGTH:
 		DebugManager.log_warn(
-			"Language code too long: %d characters" % value.length(), "SettingsManager"
+			"Language code too long: %d characters" % value.length(),
+			"SettingsManager"
 		)
 		return false
 	# Check for valid characters (alphanumeric and common separators only)
@@ -178,11 +203,15 @@ func _validate_language_setting(value) -> bool:
 	regex.compile("^[a-zA-Z0-9_-]+$")
 	if not regex.search(value):
 		DebugManager.log_warn(
-			"Language code contains invalid characters: %s" % value, "SettingsManager"
+			"Language code contains invalid characters: %s" % value,
+			"SettingsManager"
 		)
 		return false
 	# Check if language is supported
-	if languages_data.has("languages") and languages_data.languages is Dictionary:
+	if (
+		languages_data.has("languages")
+		and languages_data.languages is Dictionary
+	):
 		return value in languages_data.languages
 	# Fallback to basic validation if languages not loaded
 	return value in ["en", "ru"]
@@ -192,7 +221,9 @@ func _validate_default_setting(key: String, value) -> bool:
 	# Default validation: accept if type matches default setting type
 	var default_value = default_settings.get(key)
 	if default_value == null:
-		DebugManager.log_warn("Unknown setting key in validation: %s" % key, "SettingsManager")
+		DebugManager.log_warn(
+			"Unknown setting key in validation: %s" % key, "SettingsManager"
+		)
 		return false
 	return typeof(value) == typeof(default_value)
 
@@ -210,7 +241,9 @@ func _apply_setting_side_effect(key: String, value) -> void:
 			AudioManager.update_music_volume(value)
 		"sfx_volume":
 			if AudioServer.get_bus_index("SFX") >= 0:
-				AudioServer.set_bus_volume_db(AudioServer.get_bus_index("SFX"), linear_to_db(value))
+				AudioServer.set_bus_volume_db(
+					AudioServer.get_bus_index("SFX"), linear_to_db(value)
+				)
 
 
 func load_languages():
@@ -230,7 +263,11 @@ func load_languages():
 
 	languages_data = parsed_data
 	DebugManager.log_info(
-		"Languages loaded successfully: " + str(languages_data.languages.keys()), "SettingsManager"
+		(
+			"Languages loaded successfully: "
+			+ str(languages_data.languages.keys())
+		),
+		"SettingsManager"
 	)
 
 
@@ -239,7 +276,8 @@ func _load_languages_file() -> String:
 	if not file:
 		var error_code = FileAccess.get_open_error()
 		DebugManager.log_error(
-			"Could not open languages.json (Error code: %d)" % error_code, "SettingsManager"
+			"Could not open languages.json (Error code: %d)" % error_code,
+			"SettingsManager"
 		)
 		return ""
 
@@ -247,14 +285,19 @@ func _load_languages_file() -> String:
 	var file_size = file.get_length()
 	if file_size > MAX_JSON_FILE_SIZE:
 		DebugManager.log_error(
-			"Languages.json file too large: %d bytes (max %d)" % [file_size, MAX_JSON_FILE_SIZE],
+			(
+				"Languages.json file too large: %d bytes (max %d)"
+				% [file_size, MAX_JSON_FILE_SIZE]
+			),
 			"SettingsManager"
 		)
 		file.close()
 		return ""
 
 	if file_size == 0:
-		DebugManager.log_error("Languages.json file is empty", "SettingsManager")
+		DebugManager.log_error(
+			"Languages.json file is empty", "SettingsManager"
+		)
 		file.close()
 		return ""
 
@@ -264,7 +307,8 @@ func _load_languages_file() -> String:
 
 	if file_error != OK:
 		DebugManager.log_error(
-			"Error reading languages.json (Error code: %d)" % file_error, "SettingsManager"
+			"Error reading languages.json (Error code: %d)" % file_error,
+			"SettingsManager"
 		)
 		return ""
 
@@ -274,27 +318,36 @@ func _load_languages_file() -> String:
 func _parse_languages_json(json_string: String) -> Dictionary:
 	# Validate the JSON string is not empty
 	if json_string.is_empty():
-		DebugManager.log_error("Languages.json contains empty content", "SettingsManager")
+		DebugManager.log_error(
+			"Languages.json contains empty content", "SettingsManager"
+		)
 		return {}
 
 	var json = JSON.new()
 	var parse_result = json.parse(json_string)
 	if parse_result != OK:
 		DebugManager.log_error(
-			"JSON parsing failed at line %d: %s" % [json.error_line, json.error_string],
+			(
+				"JSON parsing failed at line %d: %s"
+				% [json.error_line, json.error_string]
+			),
 			"SettingsManager"
 		)
 		return {}
 
 	if not json.data or not json.data is Dictionary:
-		DebugManager.log_error("Invalid JSON data structure in languages.json", "SettingsManager")
+		DebugManager.log_error(
+			"Invalid JSON data structure in languages.json", "SettingsManager"
+		)
 		return {}
 
 	return json.data
 
 
 func _load_default_languages_with_fallback(reason: String):
-	DebugManager.log_warn("Loading default languages due to: " + reason, "SettingsManager")
+	DebugManager.log_warn(
+		"Loading default languages due to: " + reason, "SettingsManager"
+	)
 	_load_default_languages()
 
 
@@ -302,9 +355,14 @@ func _load_default_languages():
 	# Fallback language data when JSON file fails to load
 	languages_data = {
 		"languages":
-		{"en": {"name": "English", "flag": "🇺🇸"}, "ru": {"name": "Русский", "flag": "🇷🇺"}}
+		{
+			"en": {"name": "English", "flag": "🇺🇸"},
+			"ru": {"name": "Русский", "flag": "🇷🇺"}
+		}
 	}
-	DebugManager.log_info("Default languages loaded as fallback", "SettingsManager")
+	DebugManager.log_info(
+		"Default languages loaded as fallback", "SettingsManager"
+	)
 
 
 func get_languages_data():
@@ -312,15 +370,21 @@ func get_languages_data():
 
 
 func reset_settings_to_defaults() -> void:
-	DebugManager.log_info("Resetting all settings to defaults", "SettingsManager")
+	DebugManager.log_info(
+		"Resetting all settings to defaults", "SettingsManager"
+	)
 	for key in default_settings.keys():
 		settings[key] = default_settings[key]
 		_apply_setting_side_effect(key, settings[key])
 	var save_success = save_settings()
 	if save_success:
-		DebugManager.log_info("Settings reset completed successfully", "SettingsManager")
+		DebugManager.log_info(
+			"Settings reset completed successfully", "SettingsManager"
+		)
 	else:
-		DebugManager.log_error("Failed to save reset settings", "SettingsManager")
+		DebugManager.log_error(
+			"Failed to save reset settings", "SettingsManager"
+		)
 
 
 func _validate_languages_structure(data: Dictionary) -> bool:
@@ -344,16 +408,22 @@ func _validate_languages_structure(data: Dictionary) -> bool:
 func _validate_languages_root_structure(data: Dictionary) -> bool:
 	"""Validate the root structure of languages data"""
 	if not data.has("languages"):
-		DebugManager.log_error("Languages.json missing 'languages' key", "SettingsManager")
+		DebugManager.log_error(
+			"Languages.json missing 'languages' key", "SettingsManager"
+		)
 		return false
 
 	var languages = data["languages"]
 	if not languages is Dictionary:
-		DebugManager.log_error("'languages' is not a dictionary", "SettingsManager")
+		DebugManager.log_error(
+			"'languages' is not a dictionary", "SettingsManager"
+		)
 		return false
 
 	if languages.is_empty():
-		DebugManager.log_error("Languages dictionary is empty", "SettingsManager")
+		DebugManager.log_error(
+			"Languages dictionary is empty", "SettingsManager"
+		)
 		return false
 
 	return true
@@ -367,28 +437,35 @@ func _validate_individual_languages(languages: Dictionary) -> bool:
 	return true
 
 
-func _validate_single_language_entry(lang_code: Variant, lang_data: Variant) -> bool:
+func _validate_single_language_entry(
+	lang_code: Variant, lang_data: Variant
+) -> bool:
 	"""Validate a single language entry"""
 	if not lang_code is String:
 		DebugManager.log_error(
-			"Language code is not a string: %s" % str(lang_code), "SettingsManager"
+			"Language code is not a string: %s" % str(lang_code),
+			"SettingsManager"
 		)
 		return false
 
 	if lang_code.length() > MAX_SETTING_STRING_LENGTH:
-		DebugManager.log_error("Language code too long: %s" % lang_code, "SettingsManager")
+		DebugManager.log_error(
+			"Language code too long: %s" % lang_code, "SettingsManager"
+		)
 		return false
 
 	if not lang_data is Dictionary:
 		DebugManager.log_error(
-			"Language data for '%s' is not a dictionary" % lang_code, "SettingsManager"
+			"Language data for '%s' is not a dictionary" % lang_code,
+			"SettingsManager"
 		)
 		return false
 
 	# Validate required fields in language data
 	if not lang_data.has("name") or not lang_data["name"] is String:
 		DebugManager.log_error(
-			"Language '%s' missing valid 'name' field" % lang_code, "SettingsManager"
+			"Language '%s' missing valid 'name' field" % lang_code,
+			"SettingsManager"
 		)
 		return false