Add public-samples/benchmarks-website---replit-yxxvno/src/backend/src…

…/interfaces/config.interface.ts

src/backend/src/interfaces/config.interface.ts

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+// External imports
+// ioredis v5.0.0
+import { RedisOptions } from 'ioredis';
+
+/**
+ * Google OAuth 2.0 authentication configuration interface
+ * Defines settings for Google OAuth integration
+ */
+export interface GoogleAuthConfig {
+  clientId: string;
+  clientSecret: string;
+  callbackUrl: string;
+  allowedDomains: string[];
+  enforceHttps: boolean;
+}
+
+/**
+ * JWT token configuration interface with strict algorithm typing
+ * Defines comprehensive JWT settings for token management
+ */
+export interface JWTConfig {
+  secret: string;
+  publicKey: string;
+  privateKey: string;
+  expiresIn: number;
+  algorithm: 'HS256' | 'HS384' | 'HS512' | 'RS256' | 'RS384' | 'RS512';
+  refreshEnabled: boolean;
+  refreshExpiresIn: number;
+}
+
+/**
+ * Session management configuration with security settings
+ * Defines session handling and security parameters
+ */
+export interface SessionConfig {
+  maxAge: number;
+  secure: boolean;
+  httpOnly: boolean;
+  name: string;
+  maxConcurrent: number;
+  domain: string;
+  rolling: boolean;
+  sameSite: 'strict' | 'lax' | 'none';
+}
+
+/**
+ * Database connection pool configuration with performance settings
+ * Defines connection pool behavior and limits
+ */
+export interface PoolConfig {
+  min: number;
+  max: number;
+  idleTimeoutMillis: number;
+  acquireTimeoutMillis: number;
+  reapIntervalMillis: number;
+  fifo: boolean;
+  priorityRange: number;
+}
+
+/**
+ * Metrics validation configuration with strict mode options
+ * Defines validation rules for metric values
+ */
+export interface ValidationConfig {
+  enabled: boolean;
+  strictMode: boolean;
+  maxDecimals: number;
+  minValue: number;
+  maxValue: number;
+  allowNegative: boolean;
+  allowedUnits: string[];
+}
+
+/**
+ * Metrics caching configuration with performance settings
+ * Defines caching behavior and storage options
+ */
+export interface CachingConfig {
+  enabled: boolean;
+  ttlSeconds: number;
+  compression: boolean;
+  maxSize: number;
+  evictionPolicy: 'lru' | 'lfu';
+  persistToDisk: boolean;
+}
+
+/**
+ * Comprehensive authentication configuration interface
+ * Combines all authentication-related configurations
+ */
+export interface AuthConfig {
+  google: GoogleAuthConfig;
+  jwt: JWTConfig;
+  session: SessionConfig;
+}
+
+/**
+ * Redis cache configuration interface with clustering support
+ * Defines Redis connection and cluster settings
+ */
+export interface CacheConfig {
+  host: string;
+  port: number;
+  password?: string;
+  ttl: number;
+  options: RedisOptions;
+  cluster: boolean;
+  sentinels: Array<{ host: string; port: number }>;
+}
+
+/**
+ * Database configuration interface with replication support
+ * Defines database connection and replication settings
+ */
+export interface DatabaseConfig {
+  host: string;
+  port: number;
+  database: string;
+  username: string;
+  password: string;
+  ssl: boolean;
+  poolConfig: PoolConfig;
+  replication: {
+    readReplicas: Array<{ host: string; port: number }>;
+  };
+}
+
+/**
+ * Metrics service configuration interface with performance settings
+ * Defines comprehensive metrics handling configuration
+ */
+export interface MetricsConfig {
+  enabled: boolean;
+  prefix: string;
+  defaultLabels: Record<string, string>;
+  validation: ValidationConfig;
+  caching: CachingConfig;
+  performance: {
+    sampleRate: number;
+    aggregationInterval: number;
+  };
+}