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@tool
class_name ArgumentOption
extends Resource

@export var name : StringName
@export var aliases : Array[StringName] = []
@export var type : Variant.Type :
   get: return type
   set(v):
      type = v
      match v:
         TYPE_BOOL: default_value = false
         TYPE_INT: default_value = 0
         TYPE_FLOAT: default_value = 0.0
         TYPE_STRING: default_value = ""
         TYPE_STRING_NAME: default_value = &""
         TYPE_PACKED_STRING_ARRAY: default_value = PackedStringArray()
         TYPE_COLOR: default_value = Color()
         _: default_value = null
      notify_property_list_changed()
var default_value : Variant
@export var description : String

func _init(_name := "", _type := TYPE_NIL, _description := "", default : Variant = null) -> void:
   name = _name
   type = _type
   if default != null and typeof(default) == type:
      default_value = default
   description = _description

func add_alias(alias : StringName) -> ArgumentOption:
   aliases.append(alias)
   return self

func get_type_string() -> StringName:
   match type:
      TYPE_NIL: return "null"
      TYPE_BOOL: return "boolean"
      TYPE_INT: return "integer"
      TYPE_FLOAT: return "float"
      TYPE_STRING, TYPE_STRING_NAME: return "string"
      TYPE_PACKED_STRING_ARRAY: return "string array"
      TYPE_COLOR: return "color"
   return "<invalid type>"

func _get(property : StringName) -> Variant:
   if property == "default_value": return default_value
   return null

func _set(property : StringName, value : Variant) -> bool:
   if property == "default_value":
      default_value = value
      return true
   return false

func _get_property_list() -> Array[Dictionary]:
   var properties := [] as Array[Dictionary]

   properties.append({
      "name": "default_value",
      "type": type
   })

   return properties