add config

index.ts

@@ -1,6 +1,7 @@
 import App from './src/app';
+import config from "./src/config/config";
 
-const PORT = 3000;
+const PORT = config.port;
 const app = new App(PORT);
 
 app.startServer();

src/config/config.ts

@@ -0,0 +1,25 @@
+
+import developmentConfig from "./development";
+import productionConfig from "./production"
+
+export enum EnvironmentStr {
+    DEVELOPMENT = "development",
+    TESTING = "testing",
+    STAGE = "staging",
+    PRODUCTION = "production",
+  }
+
+const {ENVIRONMENT} = process.env;
+export const production = ENVIRONMENT === EnvironmentStr.PRODUCTION;
+export const development = ENVIRONMENT === EnvironmentStr.DEVELOPMENT;
+
+const config = () =>{
+    if(production){
+        return productionConfig;
+    } else {
+        return developmentConfig;
+    }
+}
+
+
+export default config();

src/config/development.ts

@@ -0,0 +1,10 @@
+
+import merge from "deepmerge";
+import production from './production';
+
+const config = {
+    port : 3000,
+    debug: true,
+} satisfies Record<string,number|boolean>
+
+export default merge(production,config);

src/config/production.ts

@@ -0,0 +1,6 @@
+const config = {
+    port : 3000,
+    debug: true,
+} satisfies Record<string,number|boolean>
+
+export default config;