/*
 * Copyright 2019 New Vector Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package im.vector.matrix.android.internal.crypto.tasks

import arrow.core.Try
import arrow.core.failure
import arrow.core.recoverWith
import im.vector.matrix.android.api.failure.Failure
import im.vector.matrix.android.internal.auth.registration.RegistrationFlowResponse
import im.vector.matrix.android.internal.crypto.api.CryptoApi
import im.vector.matrix.android.internal.crypto.model.rest.DeleteDeviceParams
import im.vector.matrix.android.internal.di.MoshiProvider
import im.vector.matrix.android.internal.network.executeRequest
import im.vector.matrix.android.internal.session.SessionScope
import im.vector.matrix.android.internal.task.Task
import javax.inject.Inject

internal interface DeleteDeviceTask : Task<DeleteDeviceTask.Params, Unit> {
    data class Params(
            val deviceId: String
    )
}

internal class DefaultDeleteDeviceTask @Inject constructor(private val cryptoApi: CryptoApi)
    : DeleteDeviceTask {

    override suspend fun execute(params: DeleteDeviceTask.Params): Try<Unit> {
        return executeRequest<Unit> {
            apiCall = cryptoApi.deleteDevice(params.deviceId, DeleteDeviceParams())
        }.recoverWith { throwable ->
            if (throwable is Failure.OtherServerError && throwable.httpCode == 401) {
                // Parse to get a RegistrationFlowResponse
                val registrationFlowResponse = try {
                    MoshiProvider.providesMoshi()
                            .adapter(RegistrationFlowResponse::class.java)
                            .fromJson(throwable.errorBody)
                } catch (e: Exception) {
                    null
                }

                // check if the server response can be casted
                if (registrationFlowResponse != null) {
                    Failure.RegistrationFlowError(registrationFlowResponse).failure()
                } else {
                    throwable.failure()
                }

            } else {
                // Other error
                throwable.failure()
            }
        }
    }
}
