Import service account.kt

object FirebaseUtil {

    private val loader: ResourceLoader = ResourceResolver().getLoader(ClassPathResourceLoader::class.java).get();

    private var initialised: Boolean = false

    private val options: FirebaseOptions? = FirebaseOptions.Builder()
            .setCredentials(
                    GoogleCredentials.fromStream(
                            loader.getResourceAsStream("static/firebase-admin.json")
                                    .get()
                    )
            )
            .build()

    fun initialise() {
        if (initialised.not()) {
            FirebaseApp.initializeApp(options)
            initialised = true
        }
    }

}