refactor

apps/api/src/domain/driver/presenters/DriversLeaderboardPresenter.ts

@@ -0,0 +1,49 @@
+import { DriversLeaderboardViewModel, DriverLeaderboardItemViewModel } from '../dto/DriverDto';
+import type { IDriversLeaderboardPresenter, DriversLeaderboardResultDTO } from '../../../../../core/racing/application/presenters/IDriversLeaderboardPresenter';
+
+export class DriversLeaderboardPresenter implements IDriversLeaderboardPresenter {
+  private result: DriversLeaderboardViewModel | null = null;
+
+  reset() {
+    this.result = null;
+  }
+
+  present(dto: DriversLeaderboardResultDTO) {
+    const drivers: DriverLeaderboardItemViewModel[] = dto.drivers.map(driver => {
+      const ranking = dto.rankings.find(r => r.driverId === driver.id);
+      const stats = dto.stats[driver.id];
+      const avatarUrl = dto.avatarUrls[driver.id];
+
+      return {
+        id: driver.id,
+        name: driver.name,
+        rating: ranking?.rating ?? 0,
+        skillLevel: 'Pro', // TODO: map from domain
+        nationality: driver.country,
+        racesCompleted: stats?.racesCompleted ?? 0,
+        wins: stats?.wins ?? 0,
+        podiums: stats?.podiums ?? 0,
+        isActive: true, // TODO: determine from domain
+        rank: ranking?.overallRank ?? 0,
+        avatarUrl,
+      };
+    });
+
+    // Calculate totals
+    const totalRaces = drivers.reduce((sum, d) => sum + (d.racesCompleted ?? 0), 0);
+    const totalWins = drivers.reduce((sum, d) => sum + (d.wins ?? 0), 0);
+    const activeCount = drivers.filter(d => d.isActive).length;
+
+    this.result = {
+      drivers: drivers.sort((a, b) => (b.rating ?? 0) - (a.rating ?? 0)),
+      totalRaces,
+      totalWins,
+      activeCount,
+    };
+  }
+
+  get viewModel(): DriversLeaderboardViewModel {
+    if (!this.result) throw new Error('Presenter not presented');
+    return this.result;
+  }
+}