/* * This file is part of GNU Taler * (C) 2020 Taler Systems S.A. * * GNU Taler is free software; you can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation; either version 3, or (at your option) any later version. * * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * GNU Taler; see the file COPYING. If not, see */ package net.taler.cashier import android.content.Context import android.util.Log import io.ktor.client.call.receive import io.ktor.client.features.ResponseException import io.ktor.http.HttpStatusCode import kotlinx.serialization.Serializable import net.taler.common.isOnline import java.net.UnknownHostException class Response private constructor( private val value: Any? ) { companion object { suspend fun response(request: suspend () -> T): Response { return try { Response(request()) } catch (e: Throwable) { Log.e("HttpClient", "Error getting request", e) Response(getFailure(e)) } } private suspend fun getFailure(e: Throwable): Failure = when (e) { is ResponseException -> Failure(e, getExceptionString(e), e.response?.status) else -> Failure(e, e.toString()) } private suspend fun getExceptionString(e: ResponseException): String { val response = e.response ?: return e.toString() return try { Log.e("TEST", "TRY RECEIVE $response") val error: Error = response.receive() "Error ${error.code}: ${error.hint}" } catch (ex: Exception) { "Status code: ${response.status.value}" } } } private val isFailure: Boolean get() = value is Failure suspend fun onSuccess(block: suspend (result: T) -> Unit): Response { @Suppress("UNCHECKED_CAST") if (!isFailure) block(value as T) return this } suspend fun onError(block: suspend (failure: Failure) -> Unit): Response { if (value is Failure) block(value) return this } data class Failure( val exception: Throwable, val msg: String, val statusCode: HttpStatusCode? = null ) { fun isOffline(context: Context): Boolean { return exception is UnknownHostException && !context.isOnline() } } @Serializable private class Error( val code: Int?, val hint: String? ) }