fix issues in core

core/racing/domain/value-objects/RecurrenceStrategyFactory.ts

@@ -0,0 +1,17 @@
+import { WeekdaySet } from './WeekdaySet';
+import { MonthlyRecurrencePattern } from './MonthlyRecurrencePattern';
+import { RecurrenceStrategy } from './RecurrenceStrategy';
+
+export class RecurrenceStrategyFactory {
+  static weekly(weekdays: WeekdaySet): RecurrenceStrategy {
+    return RecurrenceStrategy.weekly(weekdays);
+  }
+
+  static everyNWeeks(intervalWeeks: number, weekdays: WeekdaySet): RecurrenceStrategy {
+    return RecurrenceStrategy.everyNWeeks(intervalWeeks, weekdays);
+  }
+
+  static monthlyNthWeekday(pattern: MonthlyRecurrencePattern): RecurrenceStrategy {
+    return RecurrenceStrategy.monthlyNthWeekday(pattern);
+  }
+}