/*
 * Copyright 2020 The Matrix.org Foundation C.I.C.
 *
 * 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 org.matrix.android.sdk.internal.crypto.keysbackup.tasks

import org.matrix.android.sdk.api.failure.is404
import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupLastVersionResult
import org.matrix.android.sdk.internal.crypto.keysbackup.api.RoomKeysApi
import org.matrix.android.sdk.internal.network.GlobalErrorReceiver
import org.matrix.android.sdk.internal.network.executeRequest
import org.matrix.android.sdk.internal.task.Task
import javax.inject.Inject

internal interface GetKeysBackupLastVersionTask : Task<Unit, KeysBackupLastVersionResult>

internal class DefaultGetKeysBackupLastVersionTask @Inject constructor(
        private val roomKeysApi: RoomKeysApi,
        private val globalErrorReceiver: GlobalErrorReceiver
) : GetKeysBackupLastVersionTask {

    override suspend fun execute(params: Unit): KeysBackupLastVersionResult {
        return try {
            val keysVersionResult = executeRequest(globalErrorReceiver, canRetry = true) {
                roomKeysApi.getKeysBackupLastVersion()
            }
            KeysBackupLastVersionResult.KeysBackup(keysVersionResult)
        } catch (throwable: Throwable) {
            if (throwable.is404()) {
                KeysBackupLastVersionResult.NoKeysBackup
            } else {
                // Propagate other errors
                throw throwable
            }
        }
    }
}
