configure env variables to access from azure app service

Author: UdasriHasindu

src/main/java/com/zaplink/ZapVerse/ZapVerseApplication.java

@@ -1,21 +1,37 @@
 package com.zaplink.ZapVerse;
 
+import io.github.cdimascio.dotenv.Dotenv;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import io.github.cdimascio.dotenv.Dotenv;
 
 @SpringBootApplication
 public class ZapVerseApplication {
 
 	public static void main(String[] args) {
-		Dotenv dotenv = Dotenv.load();
+		Dotenv dotenv = null;
 
-		// Set system properties so Spring Boot can resolve placeholders
-		System.setProperty("SUPABASE_DB_URL", dotenv.get("SUPABASE_DB_URL"));
-		System.setProperty("SUPABASE_DB_USERNAME", dotenv.get("SUPABASE_DB_USERNAME"));
-		System.setProperty("SUPABASE_DB_PASSWORD", dotenv.get("SUPABASE_DB_PASSWORD"));
+		try {
+			// Try loading from .env (local dev)
+			dotenv = Dotenv.load();
+			System.out.println("dotenv: Loaded environment variables from .env file.");
+		} catch (Exception e) {
+			// If .env not found, use Azure environment variables
+			System.out.println("dotenv: .env file not found, using system environment variables.");
+		}
+
+		// Set system properties (check dotenv first, then System.getenv)
+		System.setProperty("SUPABASE_DB_URL", getenv(dotenv, "SUPABASE_DB_URL"));
+		System.setProperty("SUPABASE_DB_USERNAME", getenv(dotenv, "SUPABASE_DB_USERNAME"));
+		System.setProperty("SUPABASE_DB_PASSWORD", getenv(dotenv, "SUPABASE_DB_PASSWORD"));
 
 		SpringApplication.run(ZapVerseApplication.class, args);
 	}
 
-}
+	private static String getenv(Dotenv dotenv, String key) {
+		if (dotenv != null && dotenv.get(key) != null) {
+			return dotenv.get(key);
+		}
+		// Azure App Service variables
+		return System.getenv(key);
+	}
+}