NetworkUtils.kt for sealed class

NetworkUtils.kt

import com.ercnksgl.sealedtest.data.network.Result
import com.ercnksgl.sealedtest.data.network.response.ApiError
import com.ercnksgl.sealedtest.data.network.response.ApiError.UnexpectedError
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import retrofit2.Response

class NetworkUtils {

  suspend fun <T : Any> request(onRequest: suspend () -> Response<T>): Result<T> =
      withContext(Dispatchers.IO) {
          safeApiCall {
              with(onRequest()) {
                when {
                  isSuccessful && body() != null -> {
                    Result.Success(body() as T)
                  }
                  else -> {
                    Result.Error(ApiError.ServerError(errorBody()?.string())
                }
              }
          }
      }
              
  private suspend fun <T : Any> safeApiCall(call: suspend () -> Result<T>): Result<T> {
          return try {
              call()
          } catch (e: Exception) {
              Result.Error(ApiError.UnexpectedError())
          }
      }
}