/*
 * Copyright (c) 2023 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 io.element.android.features.securebackup.impl.enable

import androidx.compose.runtime.Composable
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope
import io.element.android.features.securebackup.impl.loggerTagDisable
import io.element.android.libraries.architecture.Async
import io.element.android.libraries.architecture.Presenter
import io.element.android.libraries.architecture.runCatchingUpdatingState
import io.element.android.libraries.matrix.api.encryption.EncryptionService
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.launch
import timber.log.Timber
import javax.inject.Inject

class SecureBackupEnablePresenter @Inject constructor(
    private val encryptionService: EncryptionService,
) : Presenter<SecureBackupEnableState> {

    @Composable
    override fun present(): SecureBackupEnableState {
        val enableAction = remember { mutableStateOf<Async<Unit>>(Async.Uninitialized) }
        val coroutineScope = rememberCoroutineScope()
        fun handleEvents(event: SecureBackupEnableEvents) {
            when (event) {
                is SecureBackupEnableEvents.EnableBackup ->
                    coroutineScope.enableBackup(enableAction)
                SecureBackupEnableEvents.DismissDialog -> {
                    enableAction.value = Async.Uninitialized
                }
            }
        }

        return SecureBackupEnableState(
            enableAction = enableAction.value,
            eventSink = ::handleEvents
        )
    }

    private fun CoroutineScope.enableBackup(action: MutableState<Async<Unit>>) = launch {
        suspend {
            Timber.tag(loggerTagDisable.value).d("Calling encryptionService.enableBackups()")
            encryptionService.enableBackups().getOrThrow()
        }.runCatchingUpdatingState(action)
    }
}
