refactoring continuing

libs/core/di/src/awilix-container.ts

@@ -0,0 +1,174 @@
+/**
+ * Awilix DI Container Setup
+ * Creates a decoupled, reusable dependency injection container
+ */
+
+import { createContainer, asFunction, asValue, InjectionMode, type AwilixContainer } from 'awilix';
+import { createCache, type CacheProvider } from '@stock-bot/cache';
+import { ProxyManager } from '@stock-bot/proxy';
+import { getLogger } from '@stock-bot/logger';
+import type { IServiceContainer } from '@stock-bot/handlers';
+
+// Configuration types
+export interface AppConfig {
+  redis: {
+    host: string;
+    port: number;
+    password?: string;
+    username?: string;
+    db?: number;
+  };
+  mongodb: {
+    uri: string;
+    database: string;
+  };
+  postgres: {
+    host: string;
+    port: number;
+    database: string;
+    user: string;
+    password: string;
+  };
+  questdb?: {
+    host: string;
+    port: number;
+  };
+  proxy?: {
+    cachePrefix?: string;
+    ttl?: number;
+  };
+}
+
+/**
+ * Create and configure the DI container
+ */
+export function createServiceContainer(config: AppConfig): AwilixContainer {
+  const container = createContainer({
+    injectionMode: InjectionMode.PROXY,
+  });
+
+  // Register configuration values
+  container.register({
+    // Configuration
+    config: asValue(config),
+    redisConfig: asValue(config.redis),
+    mongoConfig: asValue(config.mongodb),
+    postgresConfig: asValue(config.postgres),
+    questdbConfig: asValue(config.questdb || { host: 'localhost', port: 9009 }),
+    
+    // Core services with dependency injection
+    logger: asFunction(() => getLogger('app')).singleton(),
+    
+    // Cache with injected config and logger
+    cache: asFunction(({ redisConfig, logger }) => 
+      createCache({
+        redisConfig,
+        logger,
+        keyPrefix: 'cache:',
+        ttl: 3600,
+        enableMetrics: true,
+      })
+    ).singleton(),
+    
+    // Proxy manager with injected cache and logger
+    proxyManager: asFunction(({ cache, config, logger }) => {
+      const manager = new ProxyManager(
+        cache,
+        config.proxy || {},
+        logger
+      );
+      // Note: initialization happens in initializeServices function
+      return manager;
+    }).singleton(),
+    
+    // HTTP client can be added here when decoupled
+    httpClient: asFunction(() => {
+      // TODO: Import and create HTTP client when decoupled
+      return null;
+    }).singleton(),
+    
+    // Database clients - placeholders for now
+    mongoClient: asFunction(() => {
+      // TODO: Create MongoDB client
+      return null;
+    }).singleton(),
+    
+    postgresClient: asFunction(() => {
+      // TODO: Create PostgreSQL client
+      return null;
+    }).singleton(),
+    
+    questdbClient: asFunction(() => {
+      // TODO: Create QuestDB client
+      return null;
+    }).singleton(),
+    
+    // Queue manager - placeholder
+    queueManager: asFunction(() => {
+      // TODO: Create queue manager when decoupled
+      return null;
+    }).singleton(),
+    
+    // Build the IServiceContainer for handlers
+    serviceContainer: asFunction((cradle) => ({
+      logger: cradle.logger,
+      cache: cradle.cache,
+      proxy: cradle.proxyManager,
+      http: cradle.httpClient,
+      mongodb: cradle.mongoClient,
+      postgres: cradle.postgresClient,
+      questdb: cradle.questdbClient,
+      queue: cradle.queueManager,
+    } as IServiceContainer)).singleton(),
+  });
+
+  return container;
+}
+
+/**
+ * Initialize async services after container creation
+ */
+export async function initializeServices(container: AwilixContainer): Promise<void> {
+  const logger = container.resolve('logger');
+  
+  try {
+    // Wait for cache to be ready first
+    const cache = container.resolve('cache');
+    if (cache && typeof cache.waitForReady === 'function') {
+      await cache.waitForReady(10000);
+      logger.info('Cache is ready');
+    }
+    
+    // Initialize proxy manager
+    const proxyManager = container.resolve('proxyManager');
+    if (proxyManager && typeof proxyManager.initialize === 'function') {
+      await proxyManager.initialize();
+      logger.info('Proxy manager initialized');
+    }
+    
+    // Initialize other async services as needed
+    // ...
+    
+    logger.info('All services initialized successfully');
+  } catch (error) {
+    logger.error('Failed to initialize services', { error });
+    throw error;
+  }
+}
+
+// Type definitions for container resolution
+export interface ServiceCradle {
+  config: AppConfig;
+  logger: any;
+  cache: CacheProvider;
+  proxyManager: ProxyManager;
+  httpClient: any;
+  mongoClient: any;
+  postgresClient: any;
+  questdbClient: any;
+  queueManager: any;
+  serviceContainer: IServiceContainer;
+}
+
+// Export typed container
+export type ServiceContainer = AwilixContainer<ServiceCradle>;