import 'package:schemantic/schemantic.dart';

part 'my_file.g.dart'; // Must match the filename

@Schematic()
abstract class $MyObj {
  String get name;
  $MySubObj get subObj;
}

@Schematic()
abstract class $MySubObj {
  String get foo;
}

// Creating an instance
final obj = MyObj(name: 'test', subObj: MySubObj(foo: 'bar'));

// Serializing to JSON
print(obj.toJson()); 

// Parsing from JSON
final parsed = MyObj.fromJson({'name': 'test', 'subObj': {'foo': 'bar'}});

// Access JSON schema
final schema = MyObj.$schema.jsonSchema;
print(schema.toJson());

// Validate arbitrary JSON at runtime
final validationErrors = await schema.validate({'invalid': 'data'});

final ageSchema = intSchema(description: 'Age in years', minimum: 0);
final nameSchema = stringSchema(minLength: 2);
final nothingSchema = voidSchema();
final anySchema = dynamicSchema();

final userSchema = mapSchema(stringSchema(), intSchema()); // Map<String, int>
final tagsSchema = listSchema(stringSchema()); // List<String>

@Schematic()
abstract class $Poly {
  @AnyOf([int, String, $MyObj])
  Object? get id;
}

final poly1 = Poly(id: PolyId.int(123));
final poly2 = Poly(id: PolyId.string('abc'));

@Schematic()
abstract class $User {
  @IntegerField(
    name: 'years_old', // Change JSON key
    description: 'Age of the user',
    minimum: 0,
    defaultValue: 18,
  )
  int? get age;

  @StringField(
    minLength: 2,
    enumValues: ['user', 'admin'], 
  )
  String get role;
}

@Schematic()
abstract class $Node {
  String get id;
  List<$Node>? get children;
}