configs and app setup stuff

src/main/java/stirling/software/SPDF/config/ConfigInitializer.java

@@ -0,0 +1,43 @@
+package stirling.software.SPDF.config;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.springframework.context.ApplicationContextInitializer;
+import org.springframework.context.ConfigurableApplicationContext;
+
+public class ConfigInitializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
+
+    @Override
+    public void initialize(ConfigurableApplicationContext applicationContext) {
+        try {
+            ensureConfigExists();
+        } catch (IOException e) {
+            throw new RuntimeException("Failed to initialize application configuration", e);
+        }
+    }
+
+	public void ensureConfigExists() throws IOException {
+		// Define the path to the external config directory
+		Path destPath = Paths.get("configs", "application.yml");
+
+		// Check if the file already exists
+		if (Files.notExists(destPath)) {
+			// Ensure the destination directory exists
+			Files.createDirectories(destPath.getParent());
+
+			// Copy the resource from classpath to the external directory
+			try (InputStream in = getClass().getClassLoader().getResourceAsStream("application.yml.template")) {
+				if (in != null) {
+					Files.copy(in, destPath);
+				} else {
+					throw new FileNotFoundException("Resource file not found: application.yml.template");
+				}
+			}
+		}
+	}
+
+}