made config async

libs/config/src/index.ts

@@ -1,28 +1,8 @@
-// Export all schemas
-export * from './schemas';
-
-// Export types
-export * from './types';
-
-// Export errors
-export * from './errors';
-
-// Export loaders
-export { EnvLoader } from './loaders/env.loader';
-export { FileLoader } from './loaders/file.loader';
-
-// Export ConfigManager
-export { ConfigManager } from './config-manager';
-
-// Export utilities
-export * from './utils/secrets';
-export * from './utils/validation';
-
 // Import necessary types for singleton
+import { EnvLoader } from './loaders/env.loader';
+import { FileLoader } from './loaders/file.loader';
 import { ConfigManager } from './config-manager';
 import { AppConfig, appConfigSchema } from './schemas';
-import { FileLoader } from './loaders/file.loader';
-import { EnvLoader } from './loaders/env.loader';
 
 // Create singleton instance
 let configInstance: ConfigManager<AppConfig> | null = null;
@@ -37,30 +17,36 @@ function loadCriticalEnvVarsSync(): void {
     if (fs.existsSync(envPath)) {
       const envContent = fs.readFileSync(envPath, 'utf-8');
       const lines = envContent.split('\n');
-      
+
       for (const line of lines) {
         const trimmed = line.trim();
-        if (!trimmed || trimmed.startsWith('#')) continue;
-        
+        if (!trimmed || trimmed.startsWith('#')) {
+          continue;
+        }
+
         const equalIndex = trimmed.indexOf('=');
-        if (equalIndex === -1) continue;
-        
+        if (equalIndex === -1) {
+          continue;
+        }
+
         const key = trimmed.substring(0, equalIndex).trim();
         let value = trimmed.substring(equalIndex + 1).trim();
-        
+
         // Remove surrounding quotes
-        if ((value.startsWith('"') && value.endsWith('"')) || 
-            (value.startsWith("'") && value.endsWith("'"))) {
+        if (
+          (value.startsWith('"') && value.endsWith('"')) ||
+          (value.startsWith("'") && value.endsWith("'"))
+        ) {
           value = value.slice(1, -1);
         }
-        
+
         // Only set if not already set
         if (!(key in process.env)) {
           process.env[key] = value;
         }
       }
     }
-  } catch (error) {
+  } catch {
     // Ignore errors - env file is optional
   }
 }
@@ -69,26 +55,16 @@ function loadCriticalEnvVarsSync(): void {
 loadCriticalEnvVarsSync();
 
 /**
- * Initialize configuration synchronously (env vars only)
- * This should be called at the very start of the application
+ * Initialize the global configuration synchronously.
+ *
+ * This loads configuration from all sources in the correct hierarchy:
+ * 1. Schema defaults (lowest priority)
+ * 2. default.json
+ * 3. [environment].json (e.g., development.json)
+ * 4. .env file values
+ * 5. process.env values (highest priority)
  */
-export function initializeConfigSync(): AppConfig {
-  if (!configInstance) {
-    configInstance = new ConfigManager<AppConfig>({
-      loaders: [
-        new EnvLoader(''), // Environment variables only for sync
-      ]
-    });
-  }
-  return configInstance.initializeSync(appConfigSchema);
-}
-
-/**
- * Initialize the global configuration
- */
-export async function initializeConfig(
-  configPath?: string
-): Promise<AppConfig> {
+export function initializeConfig(configPath?: string): AppConfig {
   if (!configInstance) {
     configInstance = new ConfigManager<AppConfig>({
       configPath,
@@ -98,21 +74,21 @@ export async function initializeConfig(
 }
 
 /**
- * Initialize configuration for a service in a monorepo
+ * Initialize configuration for a service in a monorepo.
  * Automatically loads configs from:
  * 1. Root config directory (../../config)
  * 2. Service-specific config directory (./config)
  * 3. Environment variables
  */
-export async function initializeServiceConfig(): Promise<AppConfig> {
+export function initializeServiceConfig(): AppConfig {
   if (!configInstance) {
     const environment = process.env.NODE_ENV || 'development';
     configInstance = new ConfigManager<AppConfig>({
       loaders: [
         new FileLoader('../../config', environment), // Root config
-        new FileLoader('./config', environment),     // Service config  
+        new FileLoader('./config', environment), // Service config
         new EnvLoader(''), // Environment variables
-      ]
+      ],
     });
   }
   return configInstance.initialize(appConfigSchema);
@@ -185,4 +161,24 @@ export function isProduction(): boolean {
 
 export function isTest(): boolean {
   return getConfig().environment === 'test';
-}
+}
+
+// Export all schemas
+export * from './schemas';
+
+// Export types
+export * from './types';
+
+// Export errors
+export * from './errors';
+
+// Export loaders
+export { EnvLoader } from './loaders/env.loader';
+export { FileLoader } from './loaders/file.loader';
+
+// Export ConfigManager
+export { ConfigManager } from './config-manager';
+
+// Export utilities
+export * from './utils/secrets';
+export * from './utils/validation';