wip

packages/racing/domain/value-objects/WeekdaySet.ts

@@ -0,0 +1,23 @@
+import type { Weekday } from './Weekday';
+import { weekdayToIndex } from './Weekday';
+
+export class WeekdaySet {
+  private readonly days: Weekday[];
+
+  constructor(days: Weekday[]) {
+    if (!Array.isArray(days) || days.length === 0) {
+      throw new Error('WeekdaySet requires at least one weekday');
+    }
+
+    const unique = Array.from(new Set(days));
+    this.days = unique.sort((a, b) => weekdayToIndex(a) - weekdayToIndex(b));
+  }
+
+  getAll(): Weekday[] {
+    return [...this.days];
+  }
+
+  includes(day: Weekday): boolean {
+    return this.days.includes(day);
+  }
+}