website refactor

apps/website/lib/builders/view-data/RacesViewDataBuilder.ts

@@ -0,0 +1,39 @@
+import { RacesViewData, RacesRace } from '@/lib/view-data/races/RacesViewData';
+
+/**
+ * Races View Data Builder
+ * 
+ * Transforms API DTO into ViewData for the races template.
+ * Deterministic, side-effect free.
+ */
+export class RacesViewDataBuilder {
+  static build(apiDto: any): RacesViewData {
+    const races = apiDto.races.map((race: any) => ({
+      id: race.id,
+      track: race.track,
+      car: race.car,
+      scheduledAt: race.scheduledAt,
+      status: race.status as 'scheduled' | 'running' | 'completed' | 'cancelled',
+      sessionType: 'race',
+      leagueId: race.leagueId,
+      leagueName: race.leagueName,
+      strengthOfField: race.strengthOfField ?? undefined,
+      isUpcoming: race.status === 'scheduled',
+      isLive: race.status === 'running',
+      isPast: race.status === 'completed',
+    }));
+
+    const totalCount = races.length;
+    const scheduledRaces = races.filter((r: RacesRace) => r.isUpcoming);
+    const runningRaces = races.filter((r: RacesRace) => r.isLive);
+    const completedRaces = races.filter((r: RacesRace) => r.isPast);
+
+    return {
+      races,
+      totalCount,
+      scheduledRaces,
+      runningRaces,
+      completedRaces,
+    };
+  }
+}