private fun uploadImageToFirebase(){
        if (selectedPhotoUri == null) return
        val filename = UUID.randomUUID().toString()
        val ref = FirebaseStorage.getInstance().getReference("/images/$filename")
        ref.putFile(selectedPhotoUri!!)
            .addOnSuccessListener { it ->
                Log.d("Main","Successfully uploaded image: ${it.metadata?.path}")

                ref.downloadUrl.addOnSuccessListener {
                    it.toString()
                    Log.d("Main", "File location: $it")

                    saveUserToFirebaseDatabase(it.toString())
                }
            }
            .addOnFailureListener{
                Log.d("Main", "Failed to upload image")
            }
    }