## A collection of utility functions for working with dialogue translations.
class_name DMTranslationUtilities extends RefCounted


## Generate static IDs/translation keys from some text.
static func generate_static_line_ids_for_project() -> void:
	var rng: RandomNumberGenerator = RandomNumberGenerator.new()
	rng.randomize()

	for file_path: String in DMCache.get_files():
		var text: String = FileAccess.get_file_as_string(file_path)

		text = generate_static_line_ids_for_text(text, file_path)

		var file: FileAccess = FileAccess.open(file_path, FileAccess.WRITE)
		file.store_string(text)
		file.close()


## Generate static line IDs for some text.
static func generate_static_line_ids_for_text(text: String, file_path: String) -> String:
	var lines: PackedStringArray = text.split("\n")
	var compiled_lines: Dictionary = DMCompiler.compile_string(text, "").lines

	# Add in any that are missing
	for i: int in lines.size():
		var line: String = lines[i]
		var l: String = line.strip_edges()

		if not [DMConstants.TYPE_DIALOGUE, DMConstants.TYPE_RESPONSE].has(DMCompiler.get_line_type(l)): continue
		if not compiled_lines.has(str(i)): continue

		if "[ID:" in line: continue

		var translatable_text: String = ""
		if l.begins_with("- "):
			translatable_text = DMCompiler.extract_translatable_string(l)
		else:
			translatable_text = Array(l.replace("\\:", "!ESCAPED_COLON!").split(":")).back().replace("!ESCAPED_COLON!", "\\:")

		var key: String = _generate_id(file_path)
		while key in DMCache.known_static_ids:
			key = _generate_id(file_path)

		line = line.replace("\\n", "!NEWLINE!")
		translatable_text = translatable_text.replace("\\n", "!NEWLINE!")
		lines[i] = line.replace(translatable_text, translatable_text + " [ID:%s]" % [key]).replace("!NEWLINE!", "\\n")

		DMCache.known_static_ids[key] = file_path

	return "\n".join(lines)


## Get a random-ish ID for a line.
static func _generate_id(file_path: String) -> String:
	return ResourceUID.path_to_uid(file_path).replace("uid://", "") + "_" + str(randi() % 1000000).sha1_text().substr(0, 6)