WifiDetailsModel.kt

package com.android254.droidconke19.models

import com.google.firebase.remoteconfig.FirebaseRemoteConfig

data class WifiDetailsModel(
        var wifiSsid: String,
        var wifiPassword: String
)


//////////////////////////////////////////////////////////////////
// Could be separate file

private val WifiDetailsModel.isPropertiesNotEmpty
    get() = wifiSsid.isNotEmpty() and wifiPassword.isNotEmpty()


object WifiDetailsModelFactory {
    fun createUsingFirebaseRemoteConfigData(firebaseRemoteConfig: FirebaseRemoteConfig): WifiDetailsModel {
        val wifiDetailsModel = WifiDetailsModel(
                firebaseRemoteConfig.getString("wifi_ssid"),
                firebaseRemoteConfig.getString("wifi_password")
        )

        if (!wifiDetailsModel.isPropertiesNotEmpty)
            throw Exception("No Firebase RemoteConfig default values provided for wifi details")

        return wifiDetailsModel
    }
}

WifiDetailsRepo.kt

package com.android254.droidconke19.repository

import com.android254.droidconke19.datastates.FirebaseResult
import com.android254.droidconke19.models.WifiDetailsModel
import com.google.firebase.remoteconfig.FirebaseRemoteConfig
import com.android254.droidconke19.datastates.runCatching
import com.android254.droidconke19.models.WifiDetailsModelFactory
import kotlinx.coroutines.tasks.await

interface WifiDetailsRepo {
    suspend fun fetchWifiDetails(): FirebaseResult<WifiDetailsModel>
}

class WifiDetailsRepoImpl(private val firebaseRemoteConfig: FirebaseRemoteConfig) : WifiDetailsRepo {

    override suspend fun fetchWifiDetails(): FirebaseResult<WifiDetailsModel> =
            runCatching {
                // Fetch Firebase RemoteConfig values
                firebaseRemoteConfig.fetchAndActivate().await()

                // Create an instance of WifiDetailsModels from active Firebase RemoteConfig values
                WifiDetailsModelFactory.createUsingFirebaseRemoteConfigData(firebaseRemoteConfig)
            }
}