import 'package:brick_generator/models/variable_syntax.dart';
import 'package:brick_generator/models/variable_type.dart';
import 'package:yaml/yaml.dart';

const _variableNameKey = 'variable_name';
const _typeKey = 'type';
const _syntaxKey = 'syntax';

class BrickVariable {
  String? name;
  VariabelType? type;
  VariableSyntax? syntax;

  BrickVariable({
    required this.name,
    required this.type,
    required this.syntax,
  });

  BrickVariable._();

  factory BrickVariable.parser() => BrickVariable._();

  static BrickVariable? from(YamlMap? data) => data != null
      ? BrickVariable(
          name: data[_variableNameKey] as String?,
          type: VariabelType.stringToEnum(data[_typeKey] as String?),
          syntax: VariableSyntax.from(data[_syntaxKey] as YamlMap?),
        )
      : null;

  void checkFormat() {
    if (name == null || type == null) {
      throw ArgumentError(
        'Yaml file is not conform',
      );
    }
    if (type == VariabelType.string) {
      syntax?.checkFormat();
    }
  }
}