Homepage Redesign

backend/src/features/platform/domain/platform-cache.service.ts

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+/**
+ * @ai-summary Platform-specific Redis caching service
+ * @ai-context Caching layer for vehicle data and VIN decoding
+ */
+import { CacheService } from '../../../core/config/redis';
+import { logger } from '../../../core/logging/logger';
+
+export class PlatformCacheService {
+  private cacheService: CacheService;
+  private readonly prefix = 'platform:';
+
+  constructor(cacheService: CacheService) {
+    this.cacheService = cacheService;
+  }
+
+  /**
+   * Get cached years
+   */
+  async getYears(): Promise<number[] | null> {
+    const key = this.prefix + 'years';
+    return await this.cacheService.get<number[]>(key);
+  }
+
+  /**
+   * Set cached years
+   */
+  async setYears(years: number[], ttl: number = 6 * 3600): Promise<void> {
+    const key = this.prefix + 'years';
+    await this.cacheService.set(key, years, ttl);
+  }
+
+  /**
+   * Get cached makes for year
+   */
+  async getMakes(year: number): Promise<any[] | null> {
+    const key = this.prefix + 'vehicle-data:makes:' + year;
+    return await this.cacheService.get<any[]>(key);
+  }
+
+  /**
+   * Set cached makes for year
+   */
+  async setMakes(year: number, makes: any[], ttl: number = 6 * 3600): Promise<void> {
+    const key = this.prefix + 'vehicle-data:makes:' + year;
+    await this.cacheService.set(key, makes, ttl);
+  }
+
+  /**
+   * Get cached models for year and make
+   */
+  async getModels(year: number, makeId: number): Promise<any[] | null> {
+    const key = this.prefix + 'vehicle-data:models:' + year + ':' + makeId;
+    return await this.cacheService.get<any[]>(key);
+  }
+
+  /**
+   * Set cached models for year and make
+   */
+  async setModels(year: number, makeId: number, models: any[], ttl: number = 6 * 3600): Promise<void> {
+    const key = this.prefix + 'vehicle-data:models:' + year + ':' + makeId;
+    await this.cacheService.set(key, models, ttl);
+  }
+
+  /**
+   * Get cached trims for year and model
+   */
+  async getTrims(year: number, modelId: number): Promise<any[] | null> {
+    const key = this.prefix + 'vehicle-data:trims:' + year + ':' + modelId;
+    return await this.cacheService.get<any[]>(key);
+  }
+
+  /**
+   * Set cached trims for year and model
+   */
+  async setTrims(year: number, modelId: number, trims: any[], ttl: number = 6 * 3600): Promise<void> {
+    const key = this.prefix + 'vehicle-data:trims:' + year + ':' + modelId;
+    await this.cacheService.set(key, trims, ttl);
+  }
+
+  /**
+   * Get cached engines for year, model, and trim
+   */
+  async getEngines(year: number, modelId: number, trimId: number): Promise<any[] | null> {
+    const key = this.prefix + 'vehicle-data:engines:' + year + ':' + modelId + ':' + trimId;
+    return await this.cacheService.get<any[]>(key);
+  }
+
+  /**
+   * Set cached engines for year, model, and trim
+   */
+  async setEngines(year: number, modelId: number, trimId: number, engines: any[], ttl: number = 6 * 3600): Promise<void> {
+    const key = this.prefix + 'vehicle-data:engines:' + year + ':' + modelId + ':' + trimId;
+    await this.cacheService.set(key, engines, ttl);
+  }
+
+  /**
+   * Get cached VIN decode result
+   */
+  async getVINDecode(vin: string): Promise<any | null> {
+    const key = this.prefix + 'vin-decode:' + vin.toUpperCase();
+    return await this.cacheService.get<any>(key);
+  }
+
+  /**
+   * Set cached VIN decode result (7 days for successful decodes, 1 hour for failures)
+   */
+  async setVINDecode(vin: string, result: any, success: boolean = true): Promise<void> {
+    const key = this.prefix + 'vin-decode:' + vin.toUpperCase();
+    const ttl = success ? 7 * 24 * 3600 : 3600;
+    await this.cacheService.set(key, result, ttl);
+  }
+
+  /**
+   * Invalidate all vehicle data cache (for admin operations)
+   */
+  async invalidateVehicleData(): Promise<void> {
+    logger.warn('Vehicle data cache invalidation not implemented (requires pattern deletion)');
+  }
+}