wip

packages/racing/application/use-cases/CreateLeagueWithSeasonAndScoringUseCase.ts

@@ -8,11 +8,27 @@ import type {
   LeagueScoringPresetProvider,
   LeagueScoringPresetDTO,
 } from '../ports/LeagueScoringPresetProvider';
+import {
+  LeagueVisibility,
+  MIN_RANKED_LEAGUE_DRIVERS,
+} from '../../domain/value-objects/LeagueVisibility';
+
+/**
+ * League visibility/ranking mode.
+ * - 'ranked' (or legacy 'public'): Competitive, public, affects driver ratings. Min 10 drivers.
+ * - 'unranked' (or legacy 'private'): Casual with friends, no rating impact.
+ */
+export type LeagueVisibilityInput = 'ranked' | 'unranked' | 'public' | 'private';
 
 export interface CreateLeagueWithSeasonAndScoringCommand {
   name: string;
   description?: string;
-  visibility: 'public' | 'private';
+  /**
+   * League visibility/ranking mode.
+   * - 'ranked' (or legacy 'public'): Competitive, public, affects ratings. Requires min 10 drivers.
+   * - 'unranked' (or legacy 'private'): Casual with friends, no rating impact.
+   */
+  visibility: LeagueVisibilityInput;
   ownerId: string;
   gameId: string;
   maxDrivers?: number;
@@ -137,5 +153,20 @@ export class CreateLeagueWithSeasonAndScoringUseCase {
     if (command.maxDrivers !== undefined && command.maxDrivers <= 0) {
       throw new Error('maxDrivers must be greater than 0 when provided');
     }
+
+    // Validate visibility-specific constraints
+    const visibility = LeagueVisibility.fromString(command.visibility);
+    
+    if (visibility.isRanked()) {
+      // Ranked (public) leagues require minimum 10 drivers for competitive integrity
+      const driverCount = command.maxDrivers ?? 0;
+      if (driverCount < MIN_RANKED_LEAGUE_DRIVERS) {
+        throw new Error(
+          `Ranked leagues require at least ${MIN_RANKED_LEAGUE_DRIVERS} drivers. ` +
+          `Current setting: ${driverCount}. ` +
+          `For smaller groups, consider creating an Unranked (Friends) league instead.`
+        );
+      }
+    }
   }
 }