rating

core/identity/application/queries/GetUserRatingsSummaryQuery.ts

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+/**
+ * Query: GetUserRatingsSummaryQuery
+ * 
+ * Fast read query for user rating summary.
+ * Combines platform snapshots and external game ratings.
+ */
+
+import { RatingSummaryDto } from '../dtos/RatingSummaryDto';
+import { IUserRatingRepository } from '../../domain/repositories/IUserRatingRepository';
+import { IExternalGameRatingRepository } from '../../domain/repositories/IExternalGameRatingRepository';
+import { IRatingEventRepository } from '../../domain/repositories/IRatingEventRepository';
+
+export interface GetUserRatingsSummaryQuery {
+  userId: string;
+}
+
+export class GetUserRatingsSummaryQueryHandler {
+  constructor(
+    private readonly userRatingRepo: IUserRatingRepository,
+    private readonly externalRatingRepo: IExternalGameRatingRepository,
+    private readonly ratingEventRepo: IRatingEventRepository
+  ) {}
+
+  async execute(query: GetUserRatingsSummaryQuery): Promise<RatingSummaryDto> {
+    const { userId } = query;
+
+    // Fetch platform rating snapshot
+    const userRating = await this.userRatingRepo.findByUserId(userId);
+    
+    // Fetch all external game ratings
+    const externalProfiles = await this.externalRatingRepo.findByUserId(userId);
+
+    // Get last event timestamp if available
+    let lastRatingEventAt: string | undefined;
+    if (userRating) {
+      // Get all events to find the most recent one
+      const events = await this.ratingEventRepo.getAllByUserId(userId);
+      if (events.length > 0) {
+        const lastEvent = events[events.length - 1];
+        if (lastEvent) {
+          lastRatingEventAt = lastEvent.occurredAt.toISOString();
+        }
+      }
+    }
+
+    // Build platform rating dimensions
+    const platform = {
+      driving: {
+        value: userRating?.driver.value || 0,
+        confidence: userRating?.driver.confidence || 0,
+        sampleSize: userRating?.driver.sampleSize || 0,
+        trend: userRating?.driver.trend || 'stable',
+        lastUpdated: userRating?.driver.lastUpdated?.toISOString() || new Date(0).toISOString(),
+      },
+      admin: {
+        value: userRating?.admin.value || 0,
+        confidence: userRating?.admin.confidence || 0,
+        sampleSize: userRating?.admin.sampleSize || 0,
+        trend: userRating?.admin.trend || 'stable',
+        lastUpdated: userRating?.admin.lastUpdated?.toISOString() || new Date(0).toISOString(),
+      },
+      steward: {
+        value: userRating?.steward.value || 0,
+        confidence: userRating?.steward.confidence || 0,
+        sampleSize: userRating?.steward.sampleSize || 0,
+        trend: userRating?.steward.trend || 'stable',
+        lastUpdated: userRating?.steward.lastUpdated?.toISOString() || new Date(0).toISOString(),
+      },
+      trust: {
+        value: userRating?.trust.value || 0,
+        confidence: userRating?.trust.confidence || 0,
+        sampleSize: userRating?.trust.sampleSize || 0,
+        trend: userRating?.trust.trend || 'stable',
+        lastUpdated: userRating?.trust.lastUpdated?.toISOString() || new Date(0).toISOString(),
+      },
+      fairness: {
+        value: userRating?.fairness.value || 0,
+        confidence: userRating?.fairness.confidence || 0,
+        sampleSize: userRating?.fairness.sampleSize || 0,
+        trend: userRating?.fairness.trend || 'stable',
+        lastUpdated: userRating?.fairness.lastUpdated?.toISOString() || new Date(0).toISOString(),
+      },
+      overallReputation: userRating?.overallReputation || 0,
+    };
+
+    // Build external ratings map
+    const external: { [gameKey: string]: { [type: string]: number } } = {};
+    
+    for (const profile of externalProfiles) {
+      const gameKey = profile.gameKey.toString();
+      external[gameKey] = {};
+      
+      // Convert Map to array and iterate
+      const ratingsArray = Array.from(profile.ratings.entries());
+      for (const [type, rating] of ratingsArray) {
+        external[gameKey][type] = rating.value;
+      }
+    }
+
+    // Get timestamps
+    const createdAt = userRating?.createdAt?.toISOString() || new Date().toISOString();
+    const updatedAt = userRating?.updatedAt?.toISOString() || new Date().toISOString();
+
+    const result: RatingSummaryDto = {
+      userId,
+      platform,
+      external,
+      createdAt,
+      updatedAt,
+    };
+
+    if (lastRatingEventAt) {
+      result.lastRatingEventAt = lastRatingEventAt;
+    }
+
+    return result;
+  }
+}