extends Node
## Multilingual strings DE/EN/BY with DE fallback.

signal locale_changed

var _strings: Dictionary = {}

func _ready() -> void:
	reload()

func reload() -> void:
	_strings = _load_lang("de")
	var lang := Settings.language if Settings else "de"
	if lang != "de":
		var overlay := _load_lang(lang)
		for key in overlay.keys():
			_strings[key] = overlay[key]
	locale_changed.emit()

func _load_lang(lang: String) -> Dictionary:
	var path := "res://data/locales/%s.json" % lang
	var file := FileAccess.open(path, FileAccess.READ)
	if file == null:
		push_warning("Missing locale: %s" % path)
		return {}
	var parsed: Variant = JSON.parse_string(file.get_as_text())
	if typeof(parsed) == TYPE_DICTIONARY:
		return parsed
	return {}

func tr_key(key: String, args: Array = []) -> String:
	var text := str(_strings.get(key, key))
	if args.is_empty():
		return text
	return text % args