/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * 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 com.android.healthconnect.controller.selectabledeletion.api

import android.health.connect.HealthConnectManager
import com.android.healthconnect.controller.shared.HealthPermissionReader
import com.android.healthconnect.controller.shared.app.MedicalDataSourceReader
import com.android.healthconnect.controller.shared.usecase.IoDispatcher
import javax.inject.Inject
import javax.inject.Singleton
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.withContext

/**
 * Use case to delete all [MedicalDataSource]s and corresponding [MedicalResource]s stored in Health
 * Connect.
 */
@Singleton
class DeleteAllMedicalDataUseCase
@Inject
constructor(
    private val healthConnectManager: HealthConnectManager,
    private val healthPermissionReader: HealthPermissionReader,
    private val medicalDataSourceReader: MedicalDataSourceReader,
    @IoDispatcher private val dispatcher: CoroutineDispatcher,
) {
    suspend fun invoke() =
        withContext(dispatcher) {
            healthPermissionReader
                .getAppsWithMedicalPermissions()
                .flatMap { medicalDataSourceReader.fromPackageName(it) }
                .forEach { dataSource ->
                    healthConnectManager.deleteMedicalDataSourceWithData(
                        dataSource.id,
                        Runnable::run,
                    ) {}
                }
        }
}